CN106398730A - Hot nitrogen preheated electronic waste pyrogenic decomposition handling equipment - Google Patents
Hot nitrogen preheated electronic waste pyrogenic decomposition handling equipment Download PDFInfo
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- CN106398730A CN106398730A CN201611136662.7A CN201611136662A CN106398730A CN 106398730 A CN106398730 A CN 106398730A CN 201611136662 A CN201611136662 A CN 201611136662A CN 106398730 A CN106398730 A CN 106398730A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/44—Other processes in ovens with mechanical conveying means with conveyor-screws
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B51/00—Destructive distillation of solid carbonaceous materials by combined direct and indirect heating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of waste pyrogenic decomposition, in particular to a hot nitrogen preheated electronic waste pyrogenic decomposition handling equipment. The equipment includes an electronic waste pyrogenic decomposition reactor and an electronic heating system, wherein, the electronic waste pyrogenic decomposition reactor includes a material pyrogenic decomposition component and a reactor shell, the electronic heating system includes a hot nitrogen preheating system, a heating module for providing heat supply and an insulation layer for ensuring the insulation of electronic heating wire in the heating module and the screw shell body in the material pyrogenic decomposition component. The equipment satisfies the temperature requirements of electronic waste pyrogenic decomposition, while preheats material, settles the issues of uneven temperature, slow heating, sticky coal tar, strong heat radiation and the like in the reactor, achieves the purpose of continual gas production; when adopting hot nitrogen to preheat the material, the hot nitrogen insults air and at the same while preheats and removes the coal tar of material, bringing huge improvement for inner screw coal tar stickiness imagination.
Description
Technical field
The present invention relates to refuse pyrolysis technical field, especially relate to a kind of hot nitrogen preheating electronic waste pyrolysis processing dress
Put.
Background technology
In recent years, various electronic products are maked rapid progress, and new and old replacement is increasingly faster, and the electronic waste producing therefrom is just
Increased with exponential.The heavy metal element that it contains can be serious pollution environment, if electronic waste is dealt with improperly will produce
The toxic and harmfuls such as raw dioxin cause secondary pollution.Currently used for electronic circuit board processing method mainly by mechanical-physical
Method, metallurgical extraction method, biological treatment and pyrolysismethod etc., wherein mechanical approach, metallurgical extraction method, biological treatment etc. are main
The recovery of metal in circuit board to be laid particular emphasis on, using pyrolysismethod can not only metal in recovery train plate and also enable line
The resource of the Non-metallic components such as resin, glass fibre in the plate of road, conventional pyrolytic mode does not enable continuous feeding and discharging, and is pyrolyzed
Complex process, pyrolysis efficiency are low, energy consumption is higher.
As adopted thermogravimetric test equipment existing electronic waste pyrolysis reactor, the device of employing is that fixed-bed pyrolysis are real more
Experiment device, this device mainly includes resistance furnace, pyrolysis reactor, nitrogen cylinder and gas collection bag etc..Wherein resistance furnace provides
Thermal source, has a space inside it, pyrolysis reactor is a hydrostatic column, and material is just put in pyrolysis reactor.Pyrolysis
During experiment, first the pyrolysis reactor equipped with material is put in resistance furnace, then open nitrogen cylinder and be passed through nitrogen and start to blow
Sweep, after purging enough time, resistance furnace energising produces temperature field, material just starts to be pyrolyzed, and airbag starts to collect gas, etc.
When gas does not regenerate, experiment terminates, and treats that body of heater naturally cools to 40 DEG C, opens body of heater, takes out pyrolysis residue, weigh and
Elementary analysis, finally closes instrument.Above-mentioned fixed-bed pyrolysis experimental technique, does not enable material and is back to back, accordingly
Nor realize material continuous pyrolysis, and the point of most critical of the present invention is exactly the reactor using screw propulsion mode, the company of realization
Continuous turnover material, continuous pyrolysis are so that pyrolytic process is more simple and efficient, and the pyrolytic process of this kind of material of being back to back
It is more easy to realize industrialization.Therefore, how to design a kind of efficient, system architecture and all simple system of technological process becomes this area
The problem of urgent need to resolve.
Content of the invention
The present invention is directed to the deficiencies in the prior art it is proposed that a kind of hot nitrogen preheats electronic waste pyrolysis treatment device.Should
Device meets the temperature requirement in electronic waste pyrolysis production and experimentation, material can be preheated simultaneously, solve
Reactor temperature is uneven, heating is slow, the problems such as tar bonding, heat dissipation capacity are big, reaches the purpose of continuous gas generation；And, adopt
With hot nitrogen, material is preheated, hot nitrogen material is carried out preheating tar removing while completely cutting off air so that internal spiral shell
Rotation tar bonding imagines great improvement, and tar sizing amount can control below 0.01%.
For solving above-mentioned technical problem, the technical solution used in the present invention is：
The present invention proposes a kind of hot nitrogen preheating electronic waste pyrolysis treatment device.According to embodiments of the invention, this device
Including：Electronic waste pyrolysis reactor and electric heating system, wherein, described electronic waste pyrolysis reactor includes：Material is pyrolyzed
Assembly and reactor shell, described material pyrolization modules are across the both sides of described reactor shell, and described material pyrolysis group
The exposed outside in described reactor shell in two ends of part；Described material pyrolization modules include shaped spiral housing and material propulsion
Spiral, wherein, described shaped spiral housing extends through described anti-from described reactor shell side along described reactor enclosure intracoelomic cavity
Answer the opposite side of device housing, the exposed outside in described reactor shell in two ends of described shaped spiral housing is so that described anti-
Answer and between device housing and described shaped spiral housing, form confined space, described shaped spiral housing outer wrapping insulating barrier in confined space,
Described insulating barrier outer wrapping installs described heating module；Described electric heating system, positioned at the inside of described confined space, including：
Hot nitrogen pre-heating system, heating module and the heating wire for ensureing in described heating module and described thing for providing thermal source
The insulating barrier of the shaped spiral housing insulation in material pyrolization modules, described insulating barrier is located at the shaped spiral housing within described confined space
Outer surface, located at the outer surface of described insulating barrier, described hot nitrogen pre-heating system, including nitrogen pipeline, nitrogen for described heating module
Gas blowout mouth and lock hopper valve, the both sides of the confined space across described reactor shell for the described nitrogen pipeline, and described nitrogen tube
The exposed outside in described reactor shell in two ends on road, an end of described nitrogen pipeline is with described nitrogen spout even
Connect, another end is connected with nitrogen inlet.
Inventor finds, this device according to embodiments of the present invention, meets electronic waste pyrolysis and produces and experimentation
In temperature requirement, material can be preheated simultaneously, solve that reactor temperature is uneven, heating is slow, tar bonding, dissipate
The problems such as heat is big, reaches the purpose of continuous gas generation.This device can achieve material of being back to back, material quilt in pyrolysis reactor
Tiling, contacts fully with shaped spiral housing, and high-temperature spiral housing passes through radiation and heat conduction two ways and heats to material, therefore material
Fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead it is achieved that in pyrolysis
The function of propulsion；By the use of electric heating system as the thermal source of pyrolysis reactor, its heating module institute making alive can with precise control,
Due to employing Electric heating, heating rate can realize precise control, and furnace atmosphere, temperature ratio are more uniform, in-furnace temperature
At ± 5 DEG C, it is achieved thereby that efficient stable heat supply, radiation loss is little, and unit efficiency is high for fluctuation；Furnace pressure little, the pressure of fluctuation
Controlled range is in 3-5KPa；This device by being preheated to material using hot nitrogen, hot nitrogen completely cut off air while pair
Material carries out preheating tar removing so that internal helicoid tar bonding imagines great improvement, and tar sizing amount can control
Below 0.01%.Electric heating system and pyrolysis reactor link together and form hot nitrogen preheating electronic waste pyrolysis processing dress
Put it is achieved that material of being back to back, material are by continuously quickly fully pyrolysis and the function such as energy-efficient.
According to embodiments of the invention, the exposed described shaped spiral housing in described reactor enclosure external body is provided with charging
Pipe, oil gas vent, discharge nozzle, and described feed pipe is located at described shaped spiral housing upper right quarter, and described oil gas vent is located at described
Shaped spiral housing upper left quarter, described discharge nozzle is located at described shaped spiral housing lower left quarter, and described feed pipe is provided with upper and lower two lock hoppers
Valve, apart from 200-250mm between two valves, for the entrance of control material, and, described feed pipe is provided with described nitrogen spout
And gas vent, described gas vent is located at upper lock hopper valve bottom 15-20mm, and described nitrogen spout is located at lower lock hopper valve top
At 15-20mm, described nitrogen spout is along charging tube section circle tangential direction two nitrogen spouts of 180 ° of arrangements, or described nitrogen
Spout is along charging tube section circle tangential direction four nitrogen spouts of 90 ° of arrangements；It is total that described hot nitrogen pre-heating system also includes nitrogen
Pipe, nitrogen arm, nitrogen cut valve and described gas vent soon, and an end of described nitrogen pipeline is with described nitrogen header pipe even
Connect, described nitrogen header pipe is provided with described nitrogen and cuts valve soon, described nitrogen header pipe is connected with described nitrogen arm, and described nitrogen props up
Pipe is connected with described nitrogen spout respectively.
According to embodiments of the invention, described material propulsion spiral is located inside described shaped spiral housing, and described material
Propulsion spiral includes helical axis and helical blade, and described helical blade is fixed on described helical axis and is arranged to and described spiral shell
Spin axis rotates coaxially, and described helical axis stretches out described shaped spiral housing in described feed pipe side, the length of described helical blade with
Described shaped spiral housing is identical.
According to embodiments of the invention, described heating module includes fibre module, heating wire and binding post, described fiber mould
Block is semicircular ring shape, and described annulus inner ring is provided with groove along inwall circumferencial direction, and described heating wire is wrapped in a spiral form
On described groove, described binding post one end is connected with the two ends of heating wire respectively through described fibre module, described binding post
The other end is connected with described device circuit.
According to embodiments of the invention, described reactor shell is insulation shell.
According to embodiments of the invention, described shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm.
According to embodiments of the invention, the inside of described insulation shell is filled with insulation material.
According to embodiments of the invention, described insulation material is heat-preservation cotton and asbestos board, and heat-preservation cotton filling needs to be compacted,
To ensure heat insulating ability.
According to embodiments of the invention, also include vavuum pump, described vavuum pump along along the extended line of described gas vent with
Described gas vent connects.
The present invention at least has the advantages that：
Preheat electronic waste pyrolysis treatment device using this hot nitrogen, meet in electronic waste pyrolysis production and experimentation
Temperature requirement, can preheat to material simultaneously, solve reactor temperature inequality, heating slowly, tar bonding, heat dissipation capacity
Big the problems such as, reach the purpose of continuous gas generation.This device can achieve material of being back to back, and material is put down in pyrolysis reactor
Paving, contacts fully with shaped spiral housing, and high-temperature spiral housing passes through radiation and heat conduction two ways and heats to material, therefore material energy
Enough fully quickly it is pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead it is achieved that pushing away in pyrolysis
The function of entering；By the use of electric heating system as the thermal source of pyrolysis reactor, its heating module institute making alive can with precise control, by
In employing Electric heating, heating rate can realize precise control, and furnace atmosphere, temperature ratio are more uniform, in-furnace temperature ripple
Move at ± 5 DEG C, it is achieved thereby that efficient stable heat supply, radiation loss is little, and unit efficiency is high；Furnace pressure fluctuation is little, and pressure can
Control scope is in 3-5KPa；, by being preheated to material using hot nitrogen, hot nitrogen is while completely cutting off air to thing for this device
Material carries out preheating tar removing so that internal helicoid tar bonding imagines great improvement, and tar sizing amount can control
Less than 0.01%.Electric heating system and pyrolysis reactor link together and form hot nitrogen preheating electronic waste pyrolysis treatment device,
Achieve material of being back to back, material by continuously quickly fully pyrolysis and the function such as energy-efficient.
Brief description
Fig. 1 is the hot nitrogen preheating electronic waste pyrolysis treatment device structure chart of the present invention.
Fig. 2 is the partial top view of the feed pipe of the present invention；
Fig. 3 is the heating module structure chart of the hot nitrogen preheating electronic waste pyrolysis treatment device of the present invention.
Fig. 4 is the heating module top view of the hot nitrogen preheating electronic waste pyrolysis treatment device of the present invention.
Wherein, 1, propulsion spiral；2nd, feed pipe；3rd, discharge nozzle；4th, oil gas vent；5th, shaped spiral housing；6th, insulation shell；7、
Insulation material；8th, insulating barrier；9th, heating module；10th, motor；11st, nitrogen pipeline；12nd, nitrogen cuts valve soon；13rd, nitrogen spout；
14th, gas vent；15th, vavuum pump；16th, lock hopper valve；17th, fibre module；18th, heating wire；19th, binding post；20th, nitrogen header pipe；
21st, nitrogen arm.
Specific embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this
Invention is described in further detail.The embodiments described below is exemplary, is only used for explaining the present invention, and is not understood that
For limitation of the present invention.
The invention provides a kind of hot nitrogen preheats electronic waste pyrolysis treatment device.According to embodiments of the invention, Fig. 1
It is the hot nitrogen preheating electronic waste pyrolysis treatment device structure chart of the present invention, with reference to shown in Fig. 1, this device includes：Electronics rubbish
Rubbish pyrolysis reactor and electric heating system, wherein, described electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor
Housing 6, described material pyrolization modules are across the both sides of described reactor shell, and two ends of described material pyrolization modules
The exposed outside in described reactor shell；Described electric heating system, positioned at the inside of described confined space, including：Hot nitrogen
Pre-heating system, for providing the heating module 9 of thermal source and for ensureing the heating wire 18 in described heating module and described material
The insulating barrier 8 of the shaped spiral housing insulation in pyrolization modules, described insulating barrier is located at the shaped spiral housing 5 within described confined space
Outer surface, described heating module located at the outer surface of described insulating barrier, described hot nitrogen pre-heating system, including nitrogen pipeline 11,
Nitrogen spout 13 and lock hopper valve 16, the both sides of the confined space across described reactor shell for the described nitrogen pipeline, and described
The exposed outside in described reactor shell in two ends of nitrogen pipeline, an end of described nitrogen pipeline and described nitrogen
Spout connects, and another end is connected with nitrogen inlet.
Inventor finds, this device according to embodiments of the present invention, meets electronic waste pyrolysis and produces and experimentation
In temperature requirement, material can be preheated simultaneously, solve that reactor temperature is uneven, heating is slow, tar bonding, dissipate
The problems such as heat is big, reaches the purpose of continuous gas generation.This device can achieve material of being back to back, material quilt in pyrolysis reactor
Tiling, contacts fully with shaped spiral housing, and high-temperature spiral housing passes through radiation and heat conduction two ways and heats to material, therefore material
Fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead it is achieved that in pyrolysis
The function of propulsion；By the use of electric heating system as the thermal source of pyrolysis reactor, its heating module institute making alive can with precise control,
Due to employing Electric heating, heating rate can realize precise control, and furnace atmosphere, temperature ratio are more uniform, in-furnace temperature
At ± 5 DEG C, it is achieved thereby that efficient stable heat supply, radiation loss is little, and unit efficiency is high for fluctuation；Furnace pressure little, the pressure of fluctuation
Controlled range is in 3-5KPa；This device by being preheated to material using hot nitrogen, hot nitrogen completely cut off air while pair
Material carries out preheating tar removing so that internal helicoid tar bonding imagines great improvement, and tar sizing amount can control
Below 0.01%.Electric heating system and pyrolysis reactor link together and form hot nitrogen preheating electronic waste pyrolysis processing dress
Put it is achieved that material of being back to back, material are by continuously quickly fully pyrolysis and the function such as energy-efficient.
According to a particular embodiment of the invention, with reference to shown in Fig. 1, described electronic waste pyrolysis reactor and electric heating system
It is arranged in inside the described confined space that described reactor shell is formed with described shaped spiral housing, and pacify between two parties along its length
Dress；Described material pyrolization modules include shaped spiral housing 5 and material propulsion spiral 1, and wherein, described shaped spiral housing is heat-resisting box hat
Body, thickness is 5-8mm, and extends through described reactor enclosure from described reactor shell side along described reactor enclosure intracoelomic cavity
The opposite side of body, the exposed outside in described reactor shell in two ends of described shaped spiral housing is so that described reactor enclosure
Form confined space, described shaped spiral housing outer wrapping insulating barrier 8, institute in described confined space between body and described shaped spiral housing
State confined space remainder to fill using described insulation material 7, for reducing the radiation loss of wall；Described insulating barrier is used for
Ensure that the heating wire in described heating module is insulated with the shaped spiral housing in described material pyrolization modules；Described insulating barrier outer wrapping
Described heating module 9 is installed, described heating module is used for providing thermal source.
According to some embodiments of the present invention, the concrete species of described insulating barrier is unrestricted, the preferred mica of insulating barrier material
Band, mounting means is wrapped in described shaped spiral housing outer surface for winding.
When electric heating system is heated, to heating module 9 electrified regulation, heating module 9 is under certain voltage effect
It is brought rapidly up, by heating module 9 is given with the control of voltage, adjusts rational heating gradient, enter after setting value after temperature,
By PID control temperature it is achieved that the temperature of technological requirement, temperature error is ± 5 DEG C.
According to a particular embodiment of the invention, as shown in figure 1, described hot nitrogen pre-heating system, including nitrogen pipeline 11, nitrogen
Gas blowout mouth 13 and lock hopper valve 16, the both sides of the confined space across described reactor shell for the described nitrogen pipeline, and described nitrogen
The exposed outside in described reactor shell in two ends of air pipe, an end of described nitrogen pipeline and described nitrogen spray
Mouth connects, and another end is connected with nitrogen inlet.According to the present invention some embodiments specific, as depicted in figs. 1 and 2, institute
State hot nitrogen pre-heating system also include nitrogen header pipe 20, nitrogen arm 21, nitrogen cut valve 12 and gas vent 14 soon it is preferred that
One end of described nitrogen pipeline is connected with nitrogen inlet, and another end is connected with described nitrogen header pipe, and described nitrogen is total
Pipe is provided with described nitrogen and cuts valve soon, and described nitrogen header pipe is connected with described nitrogen arm, described nitrogen arm respectively with described
Nitrogen spout connects.Thus, by nitrogen pipeline outside heating wire absorb heat obtained hot nitrogen it is achieved that fully to plus
Hot spiral heat dissipation is recycled, and this process does not have heat to scatter and disappear, and decreases insulation layer thickness, improves heat utilization ratio.
According to a particular embodiment of the invention, as shown in figure 1, the exposed described propeller cap in described reactor enclosure external body
Feed pipe 2, oil gas vent 4, discharge nozzle 3, and described feed pipe are provided with body and are located at described shaped spiral housing upper right quarter, described
Oil gas vent is located at described shaped spiral housing upper left quarter, and described discharge nozzle is located at described shaped spiral housing lower left quarter.
After described reactor temperature is stablized, described shaped spiral housing is heated to uniform temperature（600-650℃）, now
Put into material in described feed pipe, after described material enters into described propulsion spiral, be pyrolyzed in forward movement, until mobile
It is pyrolyzed to described discharge nozzle and finishes, the gas that pyrolysis produces is discharged from described oil gas vent, remaining pyrolysis slag charge is from institute
State discharge nozzle to discharge.
According to a particular embodiment of the invention, as shown in figure 1, described feed pipe is provided with upper and lower two lock hopper valves, it is used for
The entrance of control material；Preferably, apart from 200-250mm between two valves.According to a particular embodiment of the invention, described feed pipe
It is provided with described nitrogen spout and gas vent, for controlling the entrance of hot nitrogen；Preferably, described gas vent is located at and locks
At bucket valve bottom 15-20mm, described nitrogen spout is located at lower lock hopper valve top 15-20mm, as a result, hot nitrogen can be by
Under from the upper feed pipe portion running through between upper and lower two lock hopper valves, more fully utilize the heat of hot nitrogen to feed pipe
Interior material is preheated, and hot nitrogen material is carried out preheating tar removing while completely cutting off air so that internal helicoid tar
Bonding imagines great improvement, and tar sizing amount can control below 0.01%.According to some embodiments of the present invention,
As shown in Fig. 2 the quantity of described nitrogen notch setting is not particularly limited, as long as it is abundant in feed pipe to enable to hot nitrogen
Heated material.Further, described nitrogen spout could be arranged to two, justifies 180 ° of tangential direction along charging tube section
Two nitrogen spouts of arrangement；Described nitrogen spout it can also be provided that four, that is, cuts along charging tube section circle by described nitrogen spout
Line direction four nitrogen spouts of 90 ° of arrangements.
According to a particular embodiment of the invention, this hot nitrogen preheating electronic waste pyrolysis treatment device also includes vavuum pump
15, described vavuum pump is connected with described gas vent along along the extended line of described gas vent, for extracting feed pipe upper lock hopper out
The gaseous state tar producing in valve and lower lock hopper valve intermediate duct.When hot nitrogen is passed in feed pipe upper lock hopper valve and lower lock hopper valve
Between pipeline, be passed through and produce gaseous state tar after certain time, open vavuum pump, discharge the gaseous state tar in intermediate duct, treat tar
No longer produce and close vavuum pump.Thus, by being preheated to material using hot nitrogen, hot nitrogen is in isolation air for this device
Material is carried out preheating tar removing so that internal helicoid tar bonding imagines great improvement, tar sizing amount can simultaneously
To control below 0.01%.
Device start-up course is heated to equipment by heating module, after arrival experiment is temperature required, from nitrogen
Gas entrance is passed through nitrogen, and nitrogen enters nitrogen pipeline, and the nitrogen in nitrogen pipeline is heated in heating module, obtains hot nitrogen
Gas, enters nitrogen header pipe, opens nitrogen and cuts valve soon, hot nitrogen enters nitrogen arm, enters into up and down from there through nitrogen spout
Feed pipe portion between two lock hopper valves；Meanwhile, by lock hopper valve control, material enters in feed pipe, now upper lock hopper
Valve is opened, and lower lock hopper valve is closed, and closes upper lock hopper valve after charging, opens nitrogen and cuts valve soon, makes overheated nitrogen be passed into charging
Pipe upper lock hopper valve and lower lock hopper valve intermediate duct, open the gaseous state producing after preheating discharged by vavuum pump 15 burnt after being passed through certain time
Oil, treats that tar no longer produces closing vavuum pump, closes nitrogen and cuts valve soon, opens lower lock hopper valve, makes material enter into propulsion spiral
Interior, start pyrolytic process.Thus, by being preheated to material using hot nitrogen, hot nitrogen is same isolation air for this device
When material carried out preheat tar removing so that internal helicoid tar bonding imagines great improvement, tar sizing amount is permissible
Control below 0.01%.
According to a particular embodiment of the invention, as shown in figure 1, described material propulsion spiral is located in described shaped spiral housing
Portion, and described material propulsion spiral includes helical axis and helical blade, and described helical blade is fixed on described helical axis simultaneously
It is arranged to rotate coaxially with described helical axis, described helical axis stretches out described shaped spiral housing in described feed pipe side, described
The length of helical blade is identical with described shaped spiral housing, and described propulsion spiral is turned with certain rotating speed under external motor 10 drive
Dynamic, after described material enters into described reactor, gradually it is pyrolyzed with the rising of temperature, when material is being pyrolyzed
When, it is pushed into spiral and gradually pushes ahead, until be pyrolyzed before outlet finishing, the pyrolysis gas that pyrolysis produces are from oil gas vent quilt
Discharge, the slag charge after pyrolysis is discharged from discharge nozzle.Hereby it is achieved that advancing in pyrolysis, being back to back material and material is connected
The function of continuous quickly fully pyrolysis.
According to a particular embodiment of the invention, the concrete composition component of heating module is unrestricted, as long as can reach carrying
The effect of supplying heat source.In some embodiments of the invention, with reference to shown in Fig. 3 and Fig. 4, described heating module includes fiber
Module 17, heating wire 18 and binding post 19, described fibre module is semicircular ring shape, and described annulus inner ring is along inwall circumferencial direction
It is provided with groove, described heating wire is wrapped on described groove in a spiral form, described binding post one end passes through described fibre module
It is connected with the two ends of heating wire respectively, the other end of described binding post is connected with described device circuit.Every 2 pieces of described heating modules
Compose in parallel a thermal treatment zone, be connected in series between every area.
According to a particular embodiment of the invention, described reactor shell is insulation shell, and the inside of insulation shell is filled with
Insulation material, for reducing the radiation loss of wall.
According to a particular embodiment of the invention, the concrete species of described insulation material is unrestricted, as long as guarantor can be reached
The effect of temperature.In some embodiments of the invention, described insulation material is heat-preservation cotton and asbestos board, and described heat-preservation cotton
Filling needs to be compacted, to ensure heat insulating ability.
According to a particular embodiment of the invention, this hot nitrogen preheating electronic waste pyrolysis treatment device also includes motor 10,
For advancing spiral to provide the power running for described material.When opening motor, described material propulsion spiral brings into operation, that is,
Described propulsion spiral external motor 10 drive under with certain rotational speed, after described material enters into described reactor,
Gradually it is pyrolyzed with the rising of temperature, when material is when being pyrolyzed, be pushed into spiral and gradually push ahead, until outlet
Before be pyrolyzed and finish, the pyrolysis gas that pyrolysis produces are discharged from oil gas vent, and the slag charge after pyrolysis is discharged from discharge nozzle.By
This is it is achieved that advance in pyrolysis, be back to back material and material be by the function of continuously quickly fully pyrolysis.
In another aspect of the present invention, the invention provides a kind of material using foregoing device was pyrolyzed
Journey, according to embodiments of the invention, can include procedure below：
S1. electric heating system heating process：To described heating module electrified regulation, described heating module is under certain voltage effect
It is brought rapidly up, by described heating module is given with the control of voltage, adjusts rational heating gradient, treat that temperature enters setting value
Afterwards, by PID control temperature, realize the temperature of technological requirement, temperature error is ± 5 DEG C；Meanwhile, hot nitrogen pre-heating system starts
Work, nitrogen enters from nitrogen inlet, absorbs heat by the nitrogen pipeline outside heating wire and has obtained hot nitrogen it is achieved that filling
Divide and heating coil radiating is recycled, this process does not have heat to scatter and disappear, and decreases insulation layer thickness, improves Btu utilization
Rate.
According to a particular embodiment of the invention, the concrete composition component of heating module is unrestricted, as long as can reach carrying
The effect of supplying heat source.In some embodiments of the invention, with reference to shown in Fig. 3 and Fig. 4, described insulating barrier outer wrapping is installed
Described heating module, described heating module is used for providing thermal source.Described heating module includes fibre module, heating wire and wiring
Post, described fibre module is semicircular ring shape, and described annulus inner ring is provided with groove along inwall circumferencial direction, and described heating wire is with spiral shell
Rotation form is wrapped on described groove, and described binding post one end is connected with the two ends of heating wire respectively through described fibre module,
The other end of described binding post is connected with described device circuit.Every 2 pieces of described heating modules compose in parallel a thermal treatment zone, every area
Between be connected in series.
According to a particular embodiment of the invention, as shown in figure 1, described hot nitrogen pre-heating system, including nitrogen pipeline 11, nitrogen
Gas blowout mouth 13 and lock hopper valve 16, the both sides of the confined space across described reactor shell for the described nitrogen pipeline, and described nitrogen
The exposed outside in described reactor shell in two ends of air pipe, an end of described nitrogen pipeline and described nitrogen spray
Mouth connects, and another end is connected with nitrogen inlet.According to the present invention some embodiments specific, as depicted in figs. 1 and 2, institute
State hot nitrogen pre-heating system also include nitrogen header pipe 20, nitrogen arm 21, nitrogen cut valve 12 and gas vent 14 soon it is preferred that
One end of described nitrogen pipeline is connected with nitrogen inlet, and another end is connected with described nitrogen header pipe, and described nitrogen is total
Pipe is provided with described nitrogen and cuts valve soon, and described nitrogen header pipe is connected with described nitrogen arm, described nitrogen arm respectively with described
Nitrogen spout connects.Thus, by nitrogen pipeline outside heating wire absorb heat obtained hot nitrogen it is achieved that fully to plus
Hot spiral heat dissipation is recycled, and this process does not have heat to scatter and disappear, and decreases insulation layer thickness, improves heat utilization ratio.
S2. material pyrolytic process：First, hot nitrogen preheats to material, and that is, upper lock hopper valve is opened, and lower lock hopper valve is closed
Close, material enters in feed pipe, after charging close upper lock hopper valve, open nitrogen cut valve soon, make overheated nitrogen be passed into into
Expects pipe upper lock hopper valve and lower lock hopper valve intermediate duct, open the gaseous state producing after preheating discharged by vavuum pump 15 after being passed through certain time
Tar, treats that tar no longer produces closing vavuum pump；Then, material carries out pyrolytic process, and that is, described reactor temperature stablizes it
Afterwards, described shaped spiral housing is heated to uniform temperature（600-650℃）, now just can close nitrogen and cut valve soon, open lower lock hopper
Valve, the back forward movement side that the material after described preheating enters into described propulsion spiral is pyrolyzed, until moving to discharge nozzle
It is pyrolyzed and finishes, the gas that pyrolysis produces is discharged from described oil gas vent, remaining pyrolysis slag charge is discharged from described discharge nozzle.
According to a particular embodiment of the invention, as shown in figure 1, the exposed described propeller cap in described reactor enclosure external body
Feed pipe, oil gas vent, discharge nozzle are provided with body, and described feed pipe is located at described shaped spiral housing upper right quarter, described oil
Gas outlet is located at described shaped spiral housing upper left quarter, and described discharge nozzle is located at described shaped spiral housing lower left quarter.
According to a particular embodiment of the invention, as shown in figure 1, described feed pipe is provided with upper and lower two lock hopper valves, it is used for
The entrance of control material；Preferably, apart from 200-250mm between two valves.According to a particular embodiment of the invention, described feed pipe
It is provided with described nitrogen spout and gas vent, for controlling the entrance of hot nitrogen；Preferably, described gas vent is located at and locks
At bucket valve bottom 15-20mm, described nitrogen spout is located at lower lock hopper valve top 15-20mm, as a result, hot nitrogen can be by
Under from the upper feed pipe portion running through between upper and lower two lock hopper valves, more fully utilize the heat of hot nitrogen to feed pipe
Interior material is preheated, and hot nitrogen material is carried out preheating tar removing while completely cutting off air so that internal helicoid tar
Bonding imagines great improvement, and tar sizing amount can control below 0.01%.According to some embodiments of the present invention,
As shown in Fig. 2 the quantity of described nitrogen notch setting is not particularly limited, as long as it is abundant in feed pipe to enable to hot nitrogen
Heated material.Further, described nitrogen spout could be arranged to two, justifies 180 ° of tangential direction along charging tube section
Two nitrogen spouts of arrangement；Described nitrogen spout it can also be provided that four, that is, cuts along charging tube section circle by described nitrogen spout
Line direction four nitrogen spouts of 90 ° of arrangements.
According to a particular embodiment of the invention, this hot nitrogen preheating electronic waste pyrolysis treatment device also includes vavuum pump
15, described vavuum pump is connected with described gas vent along along the extended line of described gas vent, for extracting feed pipe upper lock hopper out
The gaseous state tar producing in valve and lower lock hopper valve intermediate duct.When hot nitrogen is passed in feed pipe upper lock hopper valve and lower lock hopper valve
Between pipeline, be passed through and produce gaseous state tar after certain time, open vavuum pump, discharge the gaseous state tar in intermediate duct, treat tar
No longer produce and close vavuum pump.Thus, by being preheated to material using hot nitrogen, hot nitrogen is in isolation air for this device
Material is carried out preheating tar removing so that internal helicoid tar bonding imagines great improvement, tar sizing amount can simultaneously
To control below 0.01%.
According to a particular embodiment of the invention, as shown in figure 1, described material propulsion spiral is located in described shaped spiral housing
Portion, and described material propulsion spiral includes helical axis and helical blade, and described helical blade is fixed on described helical axis simultaneously
It is arranged to rotate coaxially with described helical axis, described helical axis stretches out described shaped spiral housing in described feed pipe side, described
The length of helical blade is identical with described shaped spiral housing, and described propulsion spiral is turned with certain rotating speed under outside motor belt motor is moved
Dynamic, after described material enters into described reactor, gradually it is pyrolyzed with the rising of temperature, when material is being pyrolyzed
When, it is pushed into spiral and gradually push ahead it is achieved that advancing in pyrolysis, being back to back material and material is continuously quickly filled
Divide the function of pyrolysis.
Inventor finds, this device according to embodiments of the present invention, meets electronic waste pyrolysis and produces and experimentation
In temperature requirement, material can be preheated simultaneously, solve that reactor temperature is uneven, heating is slow, tar bonding, dissipate
The problems such as heat is big, reaches the purpose of continuous gas generation.This device can achieve material of being back to back, material quilt in pyrolysis reactor
Tiling, contacts fully with shaped spiral housing, and high-temperature spiral housing passes through radiation and heat conduction two ways and heats to material, therefore material
Fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead it is achieved that in pyrolysis
The function of propulsion；By the use of electric heating system as the thermal source of pyrolysis reactor, its heating module institute making alive can with precise control,
Due to employing Electric heating, heating rate can realize precise control, and furnace atmosphere, temperature ratio are more uniform, in-furnace temperature
At ± 5 DEG C, it is achieved thereby that efficient stable heat supply, radiation loss is little, and unit efficiency is high for fluctuation；Furnace pressure little, the pressure of fluctuation
Controlled range is in 3-5KPa；This device by being preheated to material using hot nitrogen, hot nitrogen completely cut off air while pair
Material carries out preheating tar removing so that internal helicoid tar bonding imagines great improvement, and tar sizing amount can control
Below 0.01%.Electric heating system and pyrolysis reactor link together and form hot nitrogen preheating electronic waste pyrolysis processing dress
Put it is achieved that material of being back to back, material are by continuously quickly fully pyrolysis and the function such as energy-efficient.
Embodiment one：
Electric heating system adopts electric-heating-wire-heating, a diameter of 1.4mm of heating wire, and overall length is 15m, is wound on blade, electronics rubbish
Rubbish material（Circuit board, electric wire, keyboard etc.）It is made into the particle of 3-6mm, inlet feed amount is 1kg/h, the heat finally giving
Solution slag charge is 0.8kg/h, and the pyrolysis oil gas of generation is 0.286 Nm3/h it is achieved that material of being back to back.In pyrolytic process, temperature
Degree is continuously maintained in 650 DEG C, and thermal source stability very well, thus eliminating tar blocking, at 550 DEG C, enter to material by hot nitrogen temperature
Row preheating, makes material be heated to 500 DEG C about, subsequently into heating coil before entering spiral propeller.Nitrogen amount is 10L/
min.
Solid residue after pyrolysis is detected, finds that main component is the carbon and metal that can not be pyrolyzed, metal bag
Include copper, nickel, iron etc., do not contain the composition that resin and glass fibre etc. can be pyrolyzed, pyrolysis effect is fine.
Oil gas chemical examination composition is as shown in table 1.
Table 1 electronic waste pyrolysis gas composition
| Title | H2 | CO2 | O2 | N2 | CH4 | CO |
| Content (%) | 42.4 | 8.1 | 1.4 | 5.1 | 20.1 | 22.9 |
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ", " show
The description of example ", " specific example " or " some examples " etc. mean specific features with reference to this embodiment or example description, structure,
Material or feature are contained at least one embodiment or the example of the present invention.In this manual, above-mentioned term is shown
The statement of meaning property is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature
Can combine in an appropriate manner in any one or more embodiments or example.
In describing the invention it is to be understood that term " on ", D score, "left", "right", " interior ", the instruction such as " outward "
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplification retouch
State, rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not understood that
For indicating or implying relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can be expressed or implicitly include one or more this feature.In describing the invention, unless
It is otherwise noted, " multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or point connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification, simultaneously for one of ordinary skill in the art, according to the think of of the application
Think, all will change in specific embodiments and applications.
Claims (9)
1. a kind of hot nitrogen preheating electronic waste pyrolysis treatment device is it is characterised in that include：Electronic waste pyrolysis reactor and
Electric heating system, wherein,
Described electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell, described material pyrolization modules across
The both sides of described reactor shell, and two ends of described material pyrolization modules are exposed outer in described reactor shell
Portion；
Described material pyrolization modules include shaped spiral housing and material propulsion spiral, and wherein, described shaped spiral housing is from described reactor
Housing side extends through the opposite side of described reactor shell along described reactor enclosure intracoelomic cavity, two of described shaped spiral housing
The exposed outside in described reactor shell in end is so that form confined air between described reactor shell and described shaped spiral housing
Between, described shaped spiral housing outer wrapping insulating barrier in confined space, described insulating barrier outer wrapping installs described heating module；
Described electric heating system, positioned at the inside of described confined space, including：Hot nitrogen pre-heating system, for providing thermal source
Heating module and for ensureing shaped spiral housing insulation in heating wire in described heating module and described material pyrolization modules
Insulating barrier, described insulating barrier is located at the outer surface of the shaped spiral housing within described confined space, and described heating module is located at described
The outer surface of insulating barrier, described hot nitrogen pre-heating system, including nitrogen pipeline, nitrogen spout and lock hopper valve, described nitrogen pipeline
Across the both sides of the confined space of described reactor shell, and described nitrogen pipeline two ends exposed in described reactor
The outside of housing, an end of described nitrogen pipeline is connected with described nitrogen spout, and another end is connected with nitrogen inlet.
2. electrical heating electronic waste pyrolysis installation according to claim 1 it is characterised in that exposed in described reactor enclosure
It is provided with feed pipe, oil gas vent, discharge nozzle on the described shaped spiral housing of external body, and described feed pipe is located at described spiral
Housing upper right quarter, described oil gas vent is located at described shaped spiral housing upper left quarter, and described discharge nozzle is located at described shaped spiral housing lower-left
Portion, described feed pipe is provided with upper and lower two lock hopper valves, apart from 200-250mm between two valves, for controlling the entrance of raw material, and
And, described feed pipe is provided with described nitrogen spout and gas vent, and described gas vent is located at upper lock hopper valve bottom 15-20mm
Place, described nitrogen spout is located at lower lock hopper valve top 15-20mm, and described nitrogen spout justifies tangential direction along charging tube section
Two nitrogen spouts of 180 ° of arrangements, or described nitrogen spout is along charging tube section four nitrogen sprays of 90 ° of arrangements of circle tangential direction
Mouthful；Described hot nitrogen pre-heating system also includes nitrogen header pipe, nitrogen arm, nitrogen cut valve and described gas vent, described nitrogen soon
One end of air pipe is connected with described nitrogen header pipe, and described nitrogen header pipe is provided with described nitrogen and cuts valve soon, described nitrogen
House steward is connected with described nitrogen arm, and described nitrogen arm is connected with described nitrogen spout respectively.
3. electrical heating electronic waste pyrolysis installation according to claim 1 is it is characterised in that described material advances spiral position
Inside described shaped spiral housing, and described material propulsion spiral includes helical axis and helical blade, and described helical blade is fixed
On described helical axis and be arranged to rotate coaxially with described helical axis, described helical axis stretches out institute in described feed pipe side
State shaped spiral housing, the length of described helical blade is identical with described shaped spiral housing.
4. electrical heating electronic waste pyrolysis installation according to claim 1 is it is characterised in that described heating module includes fibre
Dimension module, heating wire and binding post, described fibre module is semicircular ring shape, and described annulus inner ring is provided with along inwall circumferencial direction
Groove, described heating wire is wrapped on described groove in a spiral form, and described binding post one end passes through described fibre module respectively
It is connected with the two ends of heating wire, the other end of described binding post is connected with described device circuit.
5. the electrical heating electronic waste pyrolysis installation according to any one of claim 1-4 is it is characterised in that described reaction
Device housing is insulation shell.
6. the electrical heating electronic waste pyrolysis installation according to any one of claim 1-4 is it is characterised in that described spiral
Housing is heat-resisting steel sheel, and thickness is 5-8mm.
7. the electrical heating electronic waste pyrolysis installation according to any one of claim 5 is it is characterised in that described insulation cladding
The inside of body is filled with insulation material.
8. electrical heating electronic waste pyrolysis installation according to claim 7 is it is characterised in that described insulation material is insulation
Cotton and asbestos board, and heat-preservation cotton filling needs compacting, to ensure heat insulating ability.
9. electrical heating electronic waste pyrolysis installation according to claim 7 is it is characterised in that also including vavuum pump, described
Vavuum pump is connected with described gas vent along along the extended line of described gas vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136662.7A CN106398730A (en) | 2016-12-12 | 2016-12-12 | Hot nitrogen preheated electronic waste pyrogenic decomposition handling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136662.7A CN106398730A (en) | 2016-12-12 | 2016-12-12 | Hot nitrogen preheated electronic waste pyrogenic decomposition handling equipment |
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| Publication Number | Publication Date |
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| CN106398730A true CN106398730A (en) | 2017-02-15 |
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ID=58085223
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|---|---|---|---|
| CN201611136662.7A Pending CN106398730A (en) | 2016-12-12 | 2016-12-12 | Hot nitrogen preheated electronic waste pyrogenic decomposition handling equipment |
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| Country | Link |
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2016
- 2016-12-12 CN CN201611136662.7A patent/CN106398730A/en active Pending
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