CN206438155U - A kind of waste and old circuit board processing equipment for recycling - Google Patents
A kind of waste and old circuit board processing equipment for recycling Download PDFInfo
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- CN206438155U CN206438155U CN201720158197.0U CN201720158197U CN206438155U CN 206438155 U CN206438155 U CN 206438155U CN 201720158197 U CN201720158197 U CN 201720158197U CN 206438155 U CN206438155 U CN 206438155U
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- smelting furnace
- combustion heat
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- circuit board
- waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a kind of waste and old circuit board processing equipment for recycling, mainly include disintegrating machine, autoreduction smelting furnace, Roots blower, and flue gas processing device, the autoreduction smelting furnace is main by smelting furnace, melting spray gun, go straight up to flue, cyclone separator, combustion heat-exchange tower is constituted, charge door is provided with the top of smelting furnace, it is incubated muzzle, sample tap, flue is gone straight up to be connected with cyclone inlet, Cyclone outlet connects combustion heat-exchange tower, air heat exchanger is provided with inside combustion heat-exchange tower, combustion heat-exchange tower top is connected provided with hot air outlet by pipeline with entering the melting spray gun of smelting furnace.The utility model by scrap build and process optimization, using the carbon granules of recovery as reducing agent, the hot process gases that reclaim as heat, both are combined, and effectively improve the rate of recovery of valuable metal, while reducing system exhaust gas volumn, save the energy, reduction pollution.
Description
Technical field
The utility model is related to resource reclaim circulating technology field, refers in particular to a kind of waste and old circuit board processing equipment for recycling.
Background technology
At present, useless circuit board recovery and treatment method, which is typically used, directly buries the methods such as method, burning method, washing and cracking,
But there is noxious material release, easily cause the serious secondary pollution of the environment such as air or soil, national environmental protection policy is also not fair
That so does perhaps limits these tupes in other words.Carrying out the best approach of recovering and processing discarded circuit board in the world is
Physical method, this method most outstanding feature is the advantages of environmental pollution is small, comprehensive utilization ratio is high, added value is big, is future
The development trend of electron wastes processing；Its inferior position is that processing cost is slightly above the recycling pattern burned or washed.By
It is larger in waste and old circuit board toughness, mostly tabular, it is difficult to metal is separated with nonmetallic by primary fragmentation, and its contents
Matter species is more, and separation decomposition technique is complicated, and these features determine that the recycling of waste and old circuit board has certain difficulty.
Current domestic existing recycling equipment, most of technology is also immature, some category pilot scales or experiment rank
Section, also simply accomplishes to decompose and to processing this part of flue gas at present, without further adjusting device, reduces energy consumption, resource is returned
Receipts are utilized, and causing these processing equipments to exist, energy consumption is too high, production capacity is low, and disposal of pollutants is not inconsistent the defects such as standardization.
The content of the invention
The utility model provides a kind of waste and old circuit board processing equipment for recycling, passes through the autoreduction smelting furnace of particular design
Structure and subregion control climate, to reach the copper content of reduction clinker, improve the rate of recovery of valuable metal, reduce reducing agent and combustion
The purpose of the consumption of material, technological process is short, system exhaust gas volumn is few, cost is low, the energy is saved, with industrialization prospect.
To reach above-mentioned purpose, the utility model is adopted the following technical scheme that：
The utility model be a kind of waste and old circuit board processing equipment for recycling, mainly including disintegrating machine, autoreduction smelting furnace,
Roots blower and flue gas processing device, the autoreduction smelting furnace it is main by smelting furnace, melting spray gun, go straight up to flue, whirlwind
Provided with charge door, insulation muzzle, sample tap at the top of separator, combustion heat-exchange tower composition, smelting furnace, flue and cyclonic separation are gone straight up to
Device entrance is connected, Cyclone outlet connection combustion heat-exchange tower, and air heat exchanger, combustion heat-exchange are provided with inside combustion heat-exchange tower
Tower top is connected provided with hot air outlet by pipeline with entering the melting spray gun of smelting furnace.
In such scheme, flue gas processing device includes flue gas quencher, activated carbon eductor, the bag collection being sequentially connected
Device, air-introduced machine, alkali lye eluting column, electrostatic precipitator, chimney, the entrance of the flue gas quencher and the exhanst gas outlet of combustion heat-exchange tower
Connection.
Further, cyclone separator bottom drain has the first unloading valve, and unloading valve outlet is conveyed by carbon granules
Passage is connected with melting spray gun.
Further, carbon granules transfer passage feed end is connected with hair-dryer.
Further, smelting furnace bottom is provided with overflow and slag mouthful, puts copper mouthful, evacuation port.
Further, combustion heat-exchange top of tower is provided with floss hole provided with dump mouthful, bottom, and floss hole is provided with second
Unloading valve, combustion heat-exchange tower bottom is provided with exhanst gas outlet and cool air inlet, and combustion heat-exchange tower top is additionally provided with overfiren air port, and
Cool air inlet, overfiren air port are connected with Roots blower.
A kind of waste and old circuit board recycling processing method of the present utility model, is mainly included the following steps that：
Step one：Different size, the waste and old circuit board of size are added via crusher in crushing to certain particle size by charge door
Into autoreduction smelting furnace, smelting technology air quantity is adjusted, it is organic matter carbochain in reducing atmosphere, circuit board in smelting furnace to maintain
On halogens spun off from carbochain enter flue gas first, then carburizing reagent generation carbon granules occurs for organic matter；
Step 2：The metal meltings such as copper, tin and gold and silver in circuit board, which come off, is directly entered the metal in molten bath in smelting furnace
Layer in, metal oxide with return carbon granules react generation metal simple-substance enter molten pool metal layer in, inorganic compound shape
Enter molten bath molten slag layer into clinker, clinker and molten metal from the slag-drip opening of smelting furnace bottom and put copper mouthful discharge, clinker respectively
Water quenching obtains being enriched the copper ingot of noble metal into Water Quenching Slag, molten metal ingot casting；
Step 3：Melting flue gas enters cyclone separator, and the separated collection of carbon granules is got off, defeated through the first unloading valve and carbon granules
Send passage to enter melting spray gun, molten bath is entered together with the smelter's ethics and practice come out by the hot air outlet of combustion heat-exchange tower；
Step 4：Separate the melting flue gas after carbon granules and enter combustion heat-exchange tower, Roots blower is blasted by overfiren air port
Enough compressed airs, flue gas fully burns, and cold smelter's ethics and practice enters empty from the cool air inlet of combustion heat-exchange tower bottom
In gas exchanger, smelter's ethics and practice after preheating is discharged from the hot air outlet on combustion heat-exchange tower top, with carbon granules together from molten
The melting spray gun of furnace is added in molten bath；
Step 5：Flue gas fully after burning is through the cooling of flue gas quencher chilling, activated carbon eductor adsorption treatment, cloth bag
Emptied after deduster dedirt, the depickling of alkali lye eluting column, electrostatic precipitator dehydration, processing by chimney, and the process is by drawing
Blower fan is guided and accelerated to flue gas.
In above-mentioned steps three, the carbon granules in carbon granules transfer passage blasts the shape that air is broken up, accelerated by hair-dryer
Moved under state toward melting spray gun direction.
The beneficial effects of the utility model are：Waste and old printed circuit board enters after autoreduction smelting furnace, having in circuit board
The heated removing halogen first of machine thing and then generation carburizing reagent generation carbon granules, carbon granules are captured in cyclone separator, melting cigarette
Air heat exchanger is set in gas second-time burning room, and the heat produced using waste and old printed circuit board own combustion is empty by smelting technology
Gas is preheated to certain temperature, and then carbon granules is together added to autoreduction molten bath as reducing agent and high-temperature gas by melting spray gun
Smelting furnace, metal simple-substance is reduced to by waste and old printed circuit board valuable metal oxide, improves the rate of recovery of valuable metal, and
Increase the heat supply of autoreduction smelting furnace, reduce system exhaust gas volumn, save the energy.Melting flue gas fills in combustion heat-exchange tower
Divided combustion, carbon dioxide and water are thoroughly decomposed into by the organic matter in waste and old circuit board, eliminate bioxin in subsequent handling again
The possibility of secondary synthesis.
Brief description of the drawings：
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of autoreduction smelting furnace in the utility model.
In accompanying drawing each mark for：Disintegrating machine 1, hair-dryer 3, quencher 4, activated carbon eductor 5, bagroom 6, alkali lye
Eluting column 7, electrostatic precipitator 8, chimney 9, Roots blower 10, smelting furnace 21, melting spray gun 22, go straight up to flue 23, cyclonic separation
Device 24, combustion heat-exchange tower 25, air-introduced machine 61, charge door 211, insulation muzzle 212, sample tap 213, overflow and slag mouthful 214, first
Unloading valve 241, carbon granules transfer passage 242, put copper mouthfuls 215, evacuation port 216, dump mouthful 251, exhanst gas outlet 252, cold sky
Gas entrance 253, overfiren air port 254, floss hole 255, the second unloading valve 256.
Embodiment：
In order that juror can be further understood that to the purpose, feature and function of the utility model, hereby lift preferable
Embodiment simultaneously coordinates schema detailed description as follows：
Refer to shown in Fig. 1, Fig. 2, be the structural representation of the preferred embodiment for the utility model, the utility model exists
Mainly using coal or coke as reducing agent during blow-on, afterwards by the carbon granules reclaimed as reducing agent.
The utility model is a kind of waste and old circuit board processing equipment for recycling, mainly includes disintegrating machine 1, autoreduction melting
Stove, Roots blower 10 and flue gas processing device, the autoreduction smelting furnace it is main by smelting furnace 21, melting spray gun 22, go straight up to
Flue 23, cyclone separator 24, combustion heat-exchange tower 25 are constituted, and the dust arrester includes flue gas quencher 4, the work being sequentially connected
Property charcoal injector 5, bagroom 6, air-introduced machine 61, alkali lye eluting column 7, electrostatic precipitator 8, chimney 9, the flue gas quencher 4
Entrance be connected with the exhanst gas outlet 250 of combustion heat-exchange tower 25.
Wherein, the top of smelting furnace 21 is provided with charge door 211, insulation muzzle 212, sample tap 213, and the bottom of smelting furnace 21 is provided with
Overflow and slag mouthfuls 214, put copper mouthful 215, evacuation port 216, flue 23 and the entrance of cyclone separator 24 are gone straight up in the top of smelting furnace 21
Connection, the outlet of cyclone separator 24 connection combustion heat-exchange tower 25, the inside of combustion heat-exchange tower 25 is provided with air heat exchanger, combustion heat-exchange
The bottom of tower 25 is provided with exhanst gas outlet 252 and cool air inlet 253, and the top of combustion heat-exchange tower 25 is additionally provided with overfiren air port 254, and cold
Air intake 253, overfiren air port 254 are connected with Roots blower 10, and blasting enough air by overfiren air port 254 makes to melt
Refining flue gas fully burns in combustion heat-exchange tower 25, and the hot air outlet on the top of combustion heat-exchange tower 25 is with entering the molten of smelting furnace 21
Refining spray gun 22 is connected, and by smelting technology sirocco reclamation and is delivered at melting spray gun 22, with being separated in cyclone separator 24
Carbon granules together enter molten bath in.
The top of combustion heat-exchange tower 24 is additionally provided with dump mouthful 251, when the abnormal feelings such as generation blast in combustion heat-exchange tower 25
Can promptly it be discharged during condition, the cool air inlet 253 positioned at the bottom of combustion heat-exchange tower 25 connects Roots blower 10, passes through the connection
Mode, makes the high-temperature gas of second-time burning be recovered as thermal source utilization, and the bottom bottom of combustion heat-exchange tower 25 is provided with floss hole 255,
And floss hole 255 is provided with the second unloading valve 256, the entrance of flue gas quencher 4 connects with the exhanst gas outlet 252 of combustion heat-exchange tower 25
Connect, by a series of fume treatment auxiliaries of postorder, dedusting, dehydration, purification are carried out to flue gas, the mark for meeting air discharge is reached
It is accurate.
The above-mentioned bottom drain of cyclone separator 24 has the first unloading valve 241, and the outlet of unloading valve 241 is defeated by carbon granules
Send passage 242 to be connected with melting spray gun 22, hair-dryer 3 is provided with the feed end of carbon granules transfer passage 242, when the first unloading valve 241
During opening, carbon granules enters in transfer passage 242, in order to avoid channel blockage is caused in carbon granules extruding whereabouts, is blasted by hair-dryer 3
Compressed air can disperse carbon granules, and Accelerating running downwards.
A kind of waste and old circuit board recycling processing method of the present utility model, is mainly included the following steps that：
Step one：Different size, the waste and old circuit board of size are crushed to certain particle size via disintegrating machine 1, by charge door 211
Be added in autoreduction smelting furnace, adjust smelting technology air quantity, maintain smelting furnace 21 in be reducing atmosphere, furnace roof negative pressure for-
Bath temperature is 1150-1250 DEG C in 20Pa, stove, and the halogens in circuit board in organic matter carbochain departs from first from carbochain
Out enter flue gas, then carburizing reagent generation carbon granules occurs for organic matter；
Step 2：The metal meltings such as copper, tin and gold and silver in circuit board, which come off, is directly entered the gold in molten bath in smelting furnace 21
Belong to layer in, metal oxide with return carbon granules react generation metal simple-substance enter molten pool metal layer in, inorganic compound
Form clinker and enter molten bath molten slag layer, clinker and molten metal from the slag-drip opening 214 of the bottom of smelting furnace 21 and put copper mouthful 215 respectively
Discharge, furnace slag granulating obtains being enriched the copper ingot of noble metal into Water Quenching Slag, molten metal ingot casting；
Step 3：Melting flue gas enters cyclone separator 24, and the separated collection of carbon granules is got off, through the row of the first unloading valve 241
Release, melting spray gun 22 is entered by carbon granules transfer passage 242, the carbon granules reclaimed is used as reducing agent, and carbon granules
The compressed air that carbon granules in transfer passage 242 is blasted by hair-dryer 3 broken up, accelerate in the state of toward the direction of spray gun 22
Motion, and into molten bath together with the smelter's ethics and practice come out by the hot air outlet of combustion heat-exchange tower 25；
Step 4：Separate the melting flue gas after carbon granules and enter combustion heat-exchange tower 25, Roots blower 10 passes through overfiren air port
254 blast enough compressed airs, and flue gas fully burns, and cold smelter's ethics and practice enters from the cold air of the bottom of combustion heat-exchange tower 25
In 253 air inlet exchangers of mouth, smelter's ethics and practice after preheating is discharged from the hot air outlet on the top of combustion heat-exchange tower 25, with
Carbon granules is together from the melting spray gun 22 of smelting furnace 21 adds molten bath, and the flue-gas temperature that combustion heat-exchange tower 25 is discharged is more than
850 DEG C, and oxygen content is about 8%, flue gas residence time in combustion heat-exchange tower 25 is more than 5 seconds；
Step 5：Flue gas fully after burning is through the cooling of the chilling of flue gas quencher 4, the adsorption treatment of activated carbon eductor 5, cloth
The dedirt of bag dust collector 6, the depickling of alkali lye eluting column 7, electrostatic precipitator 8 be dehydrated, handle after emptied by chimney 9, and the process
Flue gas is guided and accelerated by air-introduced machine 61.
Certainly, illustrated above is only the utility model better embodiment, not limits of the present utility model use with this
Scope, therefore, it is every made in the utility model principle it is equivalent change should be included in protection domain of the present utility model.
Claims (6)
1. a kind of waste and old circuit board processing equipment for recycling, mainly including disintegrating machine（1）, autoreduction smelting furnace, Roots blower
（10）And flue gas processing device, it is characterised in that：The autoreduction smelting furnace is main by smelting furnace（21）, melting spray gun（22）、
Go straight up to flue（23）, cyclone separator（24）, combustion heat-exchange tower（25）Composition, smelting furnace（21）Top is provided with charge door（211）、
It is incubated muzzle（212）, sample tap（213）, go straight up to flue（23）With cyclone separator（24）Entrance is connected, cyclone separator（24）
Outlet connection combustion heat-exchange tower（25）, combustion heat-exchange tower（25）Inside is provided with air heat exchanger, combustion heat-exchange tower（25）Top is set
There is hot air outlet by pipeline and enter smelting furnace（21）Melting spray gun（22）Connection.
2. a kind of waste and old circuit board processing equipment for recycling according to claim 1, it is characterised in that：The fume treatment
Device includes the flue gas quencher being sequentially connected（4）, activated carbon eductor（5）, bagroom（6）, air-introduced machine（61）, alkali lye
Eluting column（7）, electrostatic precipitator（8）, chimney（9）, the flue gas quencher（4）Entrance and combustion heat-exchange tower（25）Flue gas go out
Mouthful（250）Connection.
3. a kind of waste and old circuit board processing equipment for recycling according to claim 1 or 2, it is characterised in that：The whirlwind
Separator（24）Bottom drain has the first unloading valve（241）, and unloading valve（241）Outlet passes through carbon granules transfer passage
（242）With melting spray gun（22）It is connected.
4. a kind of waste and old circuit board processing equipment for recycling according to claim 3, it is characterised in that：The carbon granules conveying
Passage feed end and hair-dryer（3）Connection.
5. a kind of waste and old circuit board processing equipment for recycling according to claim 1, it is characterised in that：The smelting furnace
（21）Bottom is provided with overflow and slag mouthful（214）, put copper mouthful（215）, evacuation port（216）.
6. a kind of waste and old circuit board processing equipment for recycling according to claim 1 or 2 or 5, it is characterised in that：The combustion
Burn heat exchange columns（25）Top is provided with dump mouthful（251）, bottom be provided with floss hole（255）, and floss hole（255）Provided with second
Unloading valve（256）, combustion heat-exchange tower（25）Bottom is provided with exhanst gas outlet（252）And cool air inlet（253）, combustion heat-exchange tower
（25）Top is additionally provided with overfiren air port（254）, and cool air inlet（253）, overfiren air port（254）And Roots blower（10）
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158197.0U CN206438155U (en) | 2017-02-20 | 2017-02-20 | A kind of waste and old circuit board processing equipment for recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158197.0U CN206438155U (en) | 2017-02-20 | 2017-02-20 | A kind of waste and old circuit board processing equipment for recycling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206438155U true CN206438155U (en) | 2017-08-25 |
Family
ID=59634611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720158197.0U Withdrawn - After Issue CN206438155U (en) | 2017-02-20 | 2017-02-20 | A kind of waste and old circuit board processing equipment for recycling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206438155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106591585A (en) * | 2017-02-20 | 2017-04-26 | 中节能（汕头）再生资源技术有限公司 | Recycling treatment device and method of waste circuit boards |
-
2017
- 2017-02-20 CN CN201720158197.0U patent/CN206438155U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106591585A (en) * | 2017-02-20 | 2017-04-26 | 中节能（汕头）再生资源技术有限公司 | Recycling treatment device and method of waste circuit boards |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170825 Effective date of abandoning: 20180703 |
|
| AV01 | Patent right actively abandoned |