CN106477615B - For scrapping the recovery system and its technique of electronic circuit board pyrolysis bromide - Google Patents
For scrapping the recovery system and its technique of electronic circuit board pyrolysis bromide Download PDFInfo
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- CN106477615B CN106477615B CN201610939589.0A CN201610939589A CN106477615B CN 106477615 B CN106477615 B CN 106477615B CN 201610939589 A CN201610939589 A CN 201610939589A CN 106477615 B CN106477615 B CN 106477615B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/20—Halides
- C01F11/34—Bromides
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
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Abstract
The invention discloses a kind of recovery system for being used to scrap electronic circuit board pyrolysis bromide, the on-condensible gas gas outlet of calcium bromide solution enrichment facility connects with retort, calcium carbonate powder feed arrangement is arranged at the top of retort, retort connects with deduster, the powder recycling conveyor that deduster is set by its lower end respectively with dissolving tank, powder recycling storage tank connects, dissolving tank is connected by vapor transfer pipeline with calcium bromide solution enrichment facility all the way, another way is by being sequentially connected the first delivery pump, filter, second delivery pump connects with calcium bromide solution enrichment facility；Powder recycling storage tank is connected by powder feeder with calcium carbonate powder feed arrangement；Also disclose it is a kind of be used for scrap electronic circuit board pyrolysis bromide recovery process, by the present invention be capable of pyrolysis gas on caused by equipment, environment influence.
Description
Technical field
The invention belongs to scrap electronic circuit board recovery technology field, and in particular to one kind is used to scrap electronic circuit board heat
Solve the recovery system and its technique of bromide.
Background technology
Contain brominated epoxy resin fire retardant in circuit board, hydrogen bromide is produced in pyrolytic process, be highly acid material, shadow
Ring the utilization of pyrolysis gas and to equipment, environmental effects.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of time for being used to scrap electronic circuit board pyrolysis bromide
Receipts system and its technique.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The embodiment of the present invention provides a kind of recovery system for being used to scrap electronic circuit board pyrolysis bromide, and the system includes
Calcium bromide solution enrichment facility, calcium carbonate powder feed arrangement, retort, powder feeder, deduster, powder recovery conveying
Machine, dissolving tank, powder recycling storage tank, the first delivery pump, filter, the second delivery pump, the calcium bromide solution concentration dress
The on-condensible gas gas outlet put is connected with retort, and the calcium carbonate powder feed arrangement is arranged at the top of retort, described anti-
Tank is answered to be connected with deduster, the powder recycling conveyor that the deduster is set by its lower end is followed with dissolving tank, powder respectively
Ring holding vessel is connected, and the dissolving tank is connected by vapor transfer pipeline with calcium bromide solution enrichment facility all the way, another way
Connected by being sequentially connected the first delivery pump, filter, the second delivery pump with calcium bromide solution enrichment facility；The powder follows
Ring holding vessel is connected by powder feeder with calcium carbonate powder feed arrangement.
In such scheme, the calcium bromide solution enrichment facility is composed in series by several tank bodies, vertical in each tank body
Tube Heat Exchanger is provided with, the upper and lower ends of each tank body are respectively arranged with pyrolysis gas and collect end socket, cold oil collection
End socket, the cold oil of all tank body lower ends are collected end socket and connected with cold oil collecting, and the side of each tank body is provided with row
Dirty mouth, the opposite side of last tank body are provided with the liquid entrance joint for being connected with the second delivery pump；Each tank body
Cold oil collect end socket side and pyrolysis gas and collect and be provided with the top of end socket for concatenating adjacent tank body or the high warm of input
Solve the pyrolysis gases channel interface of gas.
In such scheme, densimeter is provided with a tank body in several described tank bodies.
In such scheme, the calcium carbonate powder feed arrangement includes hopper, conveying worm, charging aperture, the hopper
Lower section sets conveying worm, and top sets charging aperture, and the side top and the bottom of the hopper are respectively arranged with level-sensing device, blanking
Position meter, another upper lateral part are provided with carbon dioxide joint, micromanometer, respirator are provided with above the hopper；It is described
Powder feeder connects with charging aperture.
In such scheme, the retort include reacting tank body, air inlet pipe, gas distribution pipe, powder cloth tube, drive mechanism,
Centrifugal pan, the lower end of the reacting tank body are provided with the discharging joint for being connected with dust removal machine, the centrifugal pan, gas distribution pipe phase
To being arranged in the top of reacting tank body, the centrifugal pan is connected with being arranged on drive mechanism, and the gas distribution pipe is anti-with extending to
One end of the air inlet pipe of tank body side is answered to connect, the powder cloth tube is located at the top of reacting tank body；The air inlet pipe it is another
One end connects with the on-condensible gas gas outlet of calcium bromide solution enrichment facility.
In such scheme, the deduster includes cyclone dust collectors, the sack cleaner being sequentially connected, the bag-type dust
The side of device is provided with the interface being connected with air-introduced machine；The cyclone dust collectors, the lower end of sack cleaner and powder recovery are defeated
Machine is sent to connect.
In such scheme, the powder recycling conveyor includes unit head, conveying screw rod group, cyclone dust collectors interface, cloth
Bag dust collector interface, transitional storehouse, airlock, dissolving tank interface, powder recycling storage tank interface；The side of the conveying screw rod group
Unit head is set, the top of the conveying screw rod group sets cyclone dust collectors interface, sack cleaner interface respectively, and the two of bottom
Side sets transitional storehouse respectively, and two transitional storehouses are connected by airlock with dissolving tank interface, powder recycling storage tank interface respectively,
The side of each transitional storehouse is provided with carbon dioxide joint.
In such scheme, the dissolving tank includes tank body, the agitating paddle being arranged in tank body, steam gas distribution pipe, the tank
The bottom of body is provided with the discharging interface for being connected with the first delivery pump, and top is provided with the engine being connected with agitating paddle
Structure, the side at top are provided with the steam inlet joint being connected with steam gas distribution pipe, moisturizing joint, respirator, top it is another
Side is provided with the powder charging aperture connected with cyclone dust collectors, and the side of the tank body is provided with liquid-level switch.
In such scheme, the powder recycling storage tank includes tank body and cover, and respirator, powder are provided with the cover
Body recovery charging aperture, powder feed supplement charging aperture, the side of the tank body is disposed with lower level-sensing device, upper material position from top to bottom
Meter, opposite side are provided with vacuum intake interface, and the bottom of the tank body is provided with sea cock and valve interface, pneumatic hammer.
The embodiment of the present invention also provides a kind of recovery process for being used to scrap electronic circuit board pyrolysis bromide, the recovery work
Skill is realized by following steps:
Step 1：Contain hydrogen bromide on-condensible gas after the collection of calcium bromide solution enrichment facility, be passed through retort；
Step 2：Calcium carbonate powder autoreaction tank top is fallen in vaporific, is mixed with on-condensible gas；
Step 3：Contain hydrogen bromide on-condensible gas and Paris white precursor reactant generation calcium bromide, carbon dioxide, water；
Step 4：Cyclone dust collectors and sack cleaner carry out gas solid separation；
Step 5：On-condensible gas enters lower one for the treatment of process by air-introduced machine after gas solid separation；
Step 6：Calcium carbonate calcium bromide powder after gas solid separation, by induction system, is divided into two parts：A part is entered
Enter dissolving tank, form solution of calcium bromide in water and calcium carbonate；Another part enters powder recycling storage tank；
Step 7：Solution of calcium bromide in water and calcium carbonate enter the filter of separation of solid and liquid by the first delivery pump；Solid
Material calcium carbonate, after drying, recycle；Liquid material is solution of calcium bromide in water；
Step 8：Solution of calcium bromide in water is concentrated into calcium bromide solution enrichment facility, reach 52% calcium bromide it is molten
Liquid；
Step 9：Water vapour caused by concentration is passed through dissolving tank, on the one hand provides heat for dissolving tank, makes dissolving tank solution
Temperature is more than 60 degree, and another aspect steam condensate (SC) is directly added into dissolving tank as solvent；
Step 10：Calcium carbonate in the powder recycling storage tank is added in retort and followed by vacuum charging system
Ring uses.
Compared with prior art, beneficial effects of the present invention：
The present invention improves the automation of equipment, alleviates labor intensity, saves labor cost, avoids pyrolysis gas
Body on caused by equipment, environment influence.
Brief description of the drawings
Fig. 1 provides a kind of structure for being used to scrap the recovery system that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
Schematic diagram；
Fig. 2 provides a kind of bromination for being used to scrap the recovery system that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
The structural representation of calcium solution enrichment facility；
Fig. 3 provides a kind of carbonic acid for being used to scrap the recovery system that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
The structural representation of calcium powder feeding device；
Fig. 4 provides a kind of reaction for being used to scrap the recovery system that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
The structural representation of tank；
Fig. 5 provides a kind of powder for being used to scrap the recovery system that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
The structural representation of recycling conveyor；
Fig. 6 provides a kind of dissolving for being used to scrap the recovery system that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
The structural representation of tank；
Fig. 7 provides a kind of powder for being used to scrap the recovery system that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
The structural representation of recycling storage tank；
Fig. 8 provides a kind of flow for being used to scrap the recovery process that electronic circuit board is pyrolyzed bromide for the embodiment of the present invention
Schematic diagram.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of recovery system for being used to scrap electronic circuit board pyrolysis bromide, as shown in figure 1,
The system includes calcium bromide solution enrichment facility 12, calcium carbonate powder feed arrangement 1, retort 2, powder feeder 5, dedusting
Device, powder recycling conveyor 6, dissolving tank 7, powder recycling storage tank 8, the first delivery pump 9, filter 10, the second delivery pump
11, the on-condensible gas gas outlet of the calcium bromide solution enrichment facility 12 connects with retort 2, the calcium carbonate powder charging dress
Put 1 and be arranged at the top of retort 2, the retort 2 connects with deduster, and the powder that the deduster is set by its lower end returns
Receive conveyer 6 to connect with dissolving tank 7, powder recycling storage tank 8 respectively, the tunnel of dissolving tank 7 one passes through vapor transfer pipeline
Connected with calcium bromide solution enrichment facility 12, another way is by being sequentially connected the first delivery pump 9, filter 10, second conveys
Pump 11 connects with calcium bromide solution enrichment facility 12；The powder recycling storage tank 8 passes through powder feeder 5 and calcium carbonate powder
Feed arrangement 1 connects.
The filter 10 is essentially solid-liquid separation system, using belt filtering equipment, realizes that continous way produces, will
Calcium carbonate separates with solution of calcium bromide in water.
As shown in Fig. 2 the calcium bromide solution enrichment facility 12 is composed in series by several tank bodies, it is vertical in each tank body
It is provided with Tube Heat Exchanger 1201, the upper and lower ends of each tank body are respectively arranged with pyrolysis gas and collect end socket 1202, cold
Solidifying oil collects end socket 1203, and the cold oil of all tank body lower ends is collected end socket 1203 and connected with cold oil collecting 1204, often
The side of individual tank body is provided with sewage draining exit 1205, and the opposite side of last tank body is provided with for being connected with the second delivery pump 11
Liquid entrance joint 1206；The cold oil of each tank body collects the side of end socket 1203 and pyrolysis gas collects the top of end socket 1202
It is provided with the pyrolysis gases channel interface 1207 for concatenating adjacent tank body or input high temperature pyrolysis gas.
Densimeter 1208 is provided with a tank body in several described tank bodies.
The calcium bromide solution enrichment facility 12 carries out heat by the way of calcium bromide solution and pyrolysis gas reverse flow
Processing, high temperature pyrolysis gas is carried out heat exchange with High-temperature cooling medium, Low Temperature Thermal and low-temperature cooling media, make to have not
A point sectional of congealing into for homocoagulation temperature condenses, and makes cold oil categorised collection.
As shown in figure 3, the calcium carbonate powder feed arrangement 1 includes hopper 101, conveying worm 102, charging aperture 107,
The lower section of hopper 101 sets conveying worm 102, and top sets charging aperture 107, the side top and the bottom of the hopper 101
Level-sensing device 104, lower level-sensing device 103 are not provided with, and another upper lateral part is provided with carbon dioxide joint 106, the hopper
101 top is provided with micromanometer 105, respirator 108；The powder feeder 5 connects with charging aperture 107.
As shown in figure 4, the retort 2 includes reacting tank body 201, air inlet pipe 202, gas distribution pipe 203, powder cloth tube
204th, drive mechanism 205, centrifugal pan 206, the lower end of the reacting tank body 201 is provided with to be connect for the discharging connected with dust removal machine
First 207, the centrifugal pan 206, gas distribution pipe 203 are oppositely arranged in the top of reacting tank body 201, and the centrifugal pan 206 is with setting
Put and connected in drive mechanism 205, one end of air inlet pipe 202 of the gas distribution pipe 203 with extending to the side of reacting tank body 201 connects
Connect, the powder cloth tube 204 is located at the top of reacting tank body 201；The other end and calcium bromide solution of the air inlet pipe 202 are dense
The on-condensible gas gas outlet connection of compression apparatus 12.
The reacting tank body 201 uses design of Sealing Structure, and top is cylinder, and bottom is cone, and bottom is gas-solid
Mixture discharging opening, it is connected with cyclone dust collectors 3, gas-solid mixture is transported into cyclone dust collectors 3 carries out gas solid separation.
On-condensible gas enters in tank body from the top of reacting tank body 201, is mixed with top-down calcium carbonate powder, gas-solid
Mixture contact area is big, and with calcium carbonate chemical reaction occurs for the hydrogen bromide in on-condensible gas rapidly, thoroughly.
The gas distribution pipe 203 is in annular, has cross pipeline to be connected in annulus, cross tee Lu Zhizheng and air inlet pipe 202
Connection.On-condensible gas is divided into four tunnels through air inlet pipeline, by cross pipeline and enters gas distribution annulus pipeline, ensures each in annulus pipeline
It is uniform to locate pressure.
The gas distribution pipe 203 uniformly bores that gas distribution aperture, direction are downward, prevents the calcium carbonate powder that falls by hole plug.
The powder cloth tube 204 is connected with the discharging opening of conveying worm 102 using connecting hose, is arranged vertically on centrifugal pan
206 top, calcium carbonate powder are sent to powder cloth tube 204 by conveying worm 102, scatter on centrifugal pan 206.
Calcium carbonate powder does high-speed motion on the surface of centrifugal pan 206, and the centrifugal pan 206 uses surface spraying ceramic wear-resisting
Material makes, and increases the service life.
The centrifugal pan 206 does high speed rotary motion, is cone, and powder does compound motion on the surface of centrifugal pan 206, with
Gas molecule collides, and forms vaporific sinking.
The deduster includes cyclone dust collectors 3, the sack cleaner 4 being sequentially connected, the side of the sack cleaner 4
It is provided with the interface being connected with air-introduced machine；The cyclone dust collectors 3, the lower end of sack cleaner 4 and powder recycling conveyor 6 connect
It is logical.
The powder that the cyclone dust collectors 3 separate enters powder recycling conveyor 6 herein certainly；Using sealed connection, prevent
Extraneous air enters cyclone dust collectors 3.
The powder that the sack cleaner 4 separates enters powder recycling conveyor 6 herein certainly；Using sealed connection, prevent
Extraneous air enters cyclone dust collectors 3.
Connect as shown in figure 5, the powder recycling conveyor 6 includes unit head 601, conveying screw rod group 602, cyclone dust collectors
Mouth 603, sack cleaner interface 604, transitional storehouse 605, airlock 606, dissolving tank interface 607, powder recycling storage tank interface
608；The side of the conveying screw rod group 602 sets unit head 601, and the top of the conveying screw rod group 602 sets whirlwind respectively
Deduster interface 603, sack cleaner interface 604, the both sides of bottom set transitional storehouse 605 respectively, and two transitional storehouses 605 are distinguished
It is connected by airlock 606 with dissolving tank interface 607, powder recycling storage tank interface 608, the side of each transitional storehouse 605 is equal
It is provided with carbon dioxide joint 609.
The powder of recovery is realized that two-way conveys by the powder recycling conveyor 6, all the way into dissolving tank 7, obtains bromination
Calcium solution, all the way circulation add retort 2, continue to participate in reaction, improve bromination calcium content in powder to reach, reduce reaction
Middle calcium carbonate consumption and alleviate calcium bromide solution lift workload.
The transitional storehouse 605 is located at below the outlet of conveyer, and top is connected with delivery pipe, bottom and the phase of airlock 606
Even.Top uses positive round cone structure, and bottom uses inverted cone structure, and centre connects for cylinder.Control airlock 606
Rotating speed, transitional storehouse 605 is not full of for material, leave certain space, for filling carbon-dioxide protecting gas, prevent air from leading to
Discharging opening is crossed to enter in system.
The airlock 606 has six pieces of scraper plates, and six sector spaces are formed with airlock housing；Scraper plate is with housing using dynamic
Seal Design；When the airlock 606 rotates, scraper plate is scraped the material in sector space is mandatory and sealed.
As shown in fig. 6, the dissolving tank 7 includes tank body, the agitating paddle 702 being arranged in tank body, steam gas distribution pipe 707,
The bottom of the tank body is provided with the discharging interface 704 for being connected with the first delivery pump 9, and top is provided with and agitating paddle 702
The actuating unit 701 of connection, the side at top is provided with the steam inlet joint 706 being connected with steam gas distribution pipe 707, moisturizing connects
First 705, respirator 710, the opposite side at top are provided with the powder charging aperture 703 connected with cyclone dust collectors 3, the tank body
Side is provided with liquid-level switch 708.
As shown in fig. 7, the powder recycling storage tank 8 includes tank body and cover, respirator is provided with the cover
803rd, powder recovery charging aperture 801, powder feed supplement charging aperture 802, the side of the tank body is disposed with blanking from top to bottom
Position meter 805, upper level-sensing device 804, opposite side are provided with vacuum intake interface 808, and the bottom of the tank body is provided with sea cock and valve and connect
Mouth 707, pneumatic hammer 706.
The embodiment of the present invention also provides a kind of recovery process for being used to scrap electronic circuit board pyrolysis bromide, such as Fig. 8 institutes
Show, the recovery process is realized by following steps:
Step 1：Contain hydrogen bromide on-condensible gas after the collection of calcium bromide solution enrichment facility 12, be passed through retort 2；
Step 2：The top of calcium carbonate powder autoreaction tank 2 is fallen in vaporific, is mixed with on-condensible gas；
Step 3：Contain hydrogen bromide on-condensible gas and Paris white precursor reactant generation calcium bromide, carbon dioxide, water；
Step 4：Cyclone dust collectors 3 and sack cleaner 4 carry out gas solid separation；
Step 5：On-condensible gas enters lower one for the treatment of process by air-introduced machine after gas solid separation；
Step 6：Calcium carbonate calcium bromide powder after gas solid separation, by induction system, is divided into two parts：A part is entered
Enter dissolving tank 7, form solution of calcium bromide in water and calcium carbonate；Another part enters powder recycling storage tank 8；
Step 7：Solution of calcium bromide in water and calcium carbonate enter the filter 10 of separation of solid and liquid by the first delivery pump 9：Gu
Body material calcium carbonate, after drying, is recycled；Liquid material is solution of calcium bromide in water；
Step 8：Solution of calcium bromide in water is concentrated into calcium bromide solution enrichment facility 12, reaches 52% calcium bromide
Solution；
Step 9：Water vapour caused by concentration is passed through dissolving tank 7, on the one hand provides heat for dissolving tank 7, makes dissolving tank molten
Liquid temperature degree is more than 60 degree, and another aspect steam condensate (SC) is directly added into dissolving tank 7 as solvent；
Step 10：Calcium carbonate in the powder recycling storage tank 8 is added in retort 7 by vacuum charging system
Recycle.
Whole technique, as protective atmosphere, prevents the oxygen in air enters from not coagulating fuel gas using carbon dioxide.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of recovery system for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that the system includes calcium bromide
Solution condensing device, calcium carbonate powder feed arrangement, retort, powder feeder, deduster, powder recycling conveyor, dissolving
Tank, powder recycling storage tank, the first delivery pump, filter, the second delivery pump, the calcium bromide solution enrichment facility do not coagulate
Gas outlet is connected with retort, and the calcium carbonate powder feed arrangement is arranged at the top of retort, and the retort is with removing
Dirt device connects, the powder recycling conveyor that the deduster is set by its lower end respectively with dissolving tank, powder recycling storage tank
Connection, the dissolving tank are connected by vapor transfer pipeline with calcium bromide solution enrichment facility all the way, and another way passes through successively
The first delivery pump, filter, the second delivery pump is connected to connect with calcium bromide solution enrichment facility；The powder recycling storage tank
Connected by powder feeder with calcium carbonate powder feed arrangement；The calcium bromide solution enrichment facility using calcium bromide solution with
The mode of pyrolysis gas reverse flow is heat-treated, make high temperature pyrolysis gas and High-temperature cooling medium, Low Temperature Thermal with it is low
Warm cooling medium carries out heat exchange, makes to have a point sectional of congealing into for different adiabatic condensation temperatures to condense, makes cold oil categorised collection.
2. the recovery system according to claim 1 for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that：Institute
State calcium bromide solution enrichment facility to be composed in series by several tank bodies, Tube Heat Exchanger, institute are vertically installed with each tank body
State each tank body upper and lower ends be respectively arranged with pyrolysis gas collect end socket, cold oil collect end socket, all tank body lower ends it is cold
Solidifying oil is collected end socket and connected with cold oil collecting, and the side of each tank body is provided with sewage draining exit, last tank body it is another
Side is provided with the liquid entrance joint for being connected with the second delivery pump；The cold oil of each tank body collect end socket side and
Pyrolysis gas is collected to be provided with the top of end socket and connect for concatenating the pyrolysis gases channel of adjacent tank body or input high temperature pyrolysis gas
Mouthful.
3. the recovery system according to claim 2 for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that：Institute
State and be provided with densimeter in several tank bodies tank body.
4. the recovery system according to claim 1 or 2 for being used to scrap electronic circuit board pyrolysis bromide, its feature exist
In：The calcium carbonate powder feed arrangement includes hopper, conveying worm, charging aperture, and helical feed is set below the hopper
Machine, top set charging aperture, and the side top and the bottom of the hopper are respectively arranged with level-sensing device, lower level-sensing device, another upper lateral part
Carbon dioxide joint is provided with, micromanometer, respirator are provided with above the hopper；The powder feeder and charging
Mouth connection.
5. the recovery system according to claim 4 for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that：Institute
Stating retort includes reacting tank body, air inlet pipe, gas distribution pipe, powder cloth tube, drive mechanism, centrifugal pan, the reacting tank body
Lower end is provided with the discharging joint for being connected with dust removal machine, and the centrifugal pan, gas distribution pipe are oppositely arranged on the upper of reacting tank body
In portion, the centrifugal pan is connected with being arranged on drive mechanism, air inlet pipe of the gas distribution pipe with extending to reacting tank body side
One end connects, and the powder cloth tube is located at the top of reacting tank body；The other end of the air inlet pipe concentrates with calcium bromide solution
The on-condensible gas gas outlet connection of device.
6. the recovery system according to claim 5 for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that：Institute
Cyclone dust collectors, sack cleaner that deduster includes being sequentially connected are stated, the side of the sack cleaner is provided with and air inducing
The interface of machine connection；The cyclone dust collectors, the lower end of sack cleaner connect with powder recycling conveyor.
7. the recovery system according to claim 6 for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that：Institute
Stating powder recycling conveyor includes unit head, conveying screw rod group, cyclone dust collectors interface, sack cleaner interface, transitional storehouse, pass
Wind device, dissolving tank interface, powder recycling storage tank interface；The side of the conveying screw rod group sets unit head, the conveying spiral shell
The top of bar group sets cyclone dust collectors interface, sack cleaner interface respectively, and the both sides of bottom set transitional storehouse respectively, two
Transitional storehouse is connected by airlock with dissolving tank interface, powder recycling storage tank interface respectively, and the side of each transitional storehouse is all provided with
It is equipped with carbon dioxide joint.
8. the recovery system according to claim 7 for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that：Institute
Stating dissolving tank includes tank body, the agitating paddle being arranged in tank body, steam gas distribution pipe, and the bottom of the tank body is provided with for the
The discharging interface of one delivery pump connection, top are provided with the actuating unit being connected with agitating paddle, and the side at top is provided with and steamed
Steam inlet joint, moisturizing joint, the respirator of vapour gas distribution pipe connection, the opposite side at top is provided with to be connected with cyclone dust collectors
Powder charging aperture, the side of the tank body is provided with liquid-level switch.
9. the recovery system according to claim 8 for being used to scrap electronic circuit board pyrolysis bromide, it is characterised in that：Institute
Stating powder recycling storage tank includes tank body and cover, and respirator, powder recovery charging aperture, powder feed supplement are provided with the cover
Charging aperture, the side of the tank body are disposed with lower level-sensing device, upper level-sensing device from top to bottom, and opposite side is provided with vacuum intake
Interface, the bottom of the tank body are provided with sea cock and valve interface, pneumatic hammer.
10. it is a kind of be used for scrap electronic circuit board pyrolysis bromide recovery process, it is characterised in that the recovery process by with
Lower step is realized:
Step 1：Contain hydrogen bromide on-condensible gas after the collection of calcium bromide solution enrichment facility, be passed through retort；
Step 2：Calcium carbonate powder autoreaction tank top is fallen in vaporific, is mixed with on-condensible gas；
Step 3：Contain hydrogen bromide on-condensible gas and Paris white precursor reactant generation calcium bromide, carbon dioxide, water；
Step 4：Cyclone dust collectors and sack cleaner carry out gas solid separation；
Step 5：On-condensible gas enters lower one for the treatment of process by air-introduced machine after gas solid separation；
Step 6：Calcium carbonate calcium bromide powder after gas solid separation, by induction system, is divided into two parts：It is partly into molten
Tank is solved, forms solution of calcium bromide in water and calcium carbonate；Another part enters powder recycling storage tank；
Step 7：Solution of calcium bromide in water and calcium carbonate enter the filter of separation of solid and liquid by the first delivery pump；Solid material
Calcium carbonate, after drying, recycle；Liquid material is solution of calcium bromide in water；
Step 8：Solution of calcium bromide in water is concentrated into calcium bromide solution enrichment facility, reaches 52% calcium bromide solution；
Step 9：Water vapour caused by concentration is passed through dissolving tank, on the one hand provides heat for dissolving tank, makes dissolving tank solution temperature
More than 60 degree, another aspect steam condensate (SC) is directly added into dissolving tank as solvent；
Step 10：By vacuum charging system, be added to circulation in retort makes calcium carbonate in the powder recycling storage tank
With.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610939589.0A CN106477615B (en) | 2016-10-25 | 2016-10-25 | For scrapping the recovery system and its technique of electronic circuit board pyrolysis bromide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610939589.0A CN106477615B (en) | 2016-10-25 | 2016-10-25 | For scrapping the recovery system and its technique of electronic circuit board pyrolysis bromide |
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| CN106477615A CN106477615A (en) | 2017-03-08 |
| CN106477615B true CN106477615B (en) | 2018-01-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE38908L (en) * | 1973-03-12 | 1974-09-12 | Euratom | Hydroylsis of calcium bromide |
| CN101600648A (en) * | 2007-02-16 | 2009-12-09 | 雅宝公司 | The common method that generates bromine and calcium chloride |
| CN103613071A (en) * | 2013-11-07 | 2014-03-05 | 浙江双益环保科技发展有限公司 | Method for recycling bromine from bromine-containing wastewater of brominated butyl rubber |
| CN206255849U (en) * | 2016-10-25 | 2017-06-16 | 格林美（武汉）城市矿产循环产业园开发有限公司 | The recovery system of bromide is pyrolyzed for scrapping electronic circuit board |
-
2016
- 2016-10-25 CN CN201610939589.0A patent/CN106477615B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE38908L (en) * | 1973-03-12 | 1974-09-12 | Euratom | Hydroylsis of calcium bromide |
| GB1409991A (en) * | 1973-03-12 | 1975-10-15 | Euratom | Process for the hydrolysis of calcium bromide |
| CN101600648A (en) * | 2007-02-16 | 2009-12-09 | 雅宝公司 | The common method that generates bromine and calcium chloride |
| CN103613071A (en) * | 2013-11-07 | 2014-03-05 | 浙江双益环保科技发展有限公司 | Method for recycling bromine from bromine-containing wastewater of brominated butyl rubber |
| CN206255849U (en) * | 2016-10-25 | 2017-06-16 | 格林美（武汉）城市矿产循环产业园开发有限公司 | The recovery system of bromide is pyrolyzed for scrapping electronic circuit board |
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