CN106782478A - A kind of devices and methods therefor that sound-absorbing material is prepared from discarded circuit board - Google Patents
A kind of devices and methods therefor that sound-absorbing material is prepared from discarded circuit board Download PDFInfo
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- CN106782478A CN106782478A CN201611175099.4A CN201611175099A CN106782478A CN 106782478 A CN106782478 A CN 106782478A CN 201611175099 A CN201611175099 A CN 201611175099A CN 106782478 A CN106782478 A CN 106782478A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- Gas Separation By Absorption (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
A kind of devices and methods therefor that sound-absorbing material is prepared from discarded circuit board, including high-temperature high-voltage reaction device, temperature controller, pressure controller, CO2Gas cylinder, CO2Pressue device, pressure relief device；High-temperature high-voltage reaction device connects temperature controller, pressure controller respectively；The top of high-temperature high-voltage reaction device is connected to pressure relief device by the first pipeline；The bottom of high-temperature high-voltage reaction device is connected to CO by second pipe2Pressue device；CO2Gas cylinder one end is connected to pressure relief device, and the other end is connected to CO2Pressue device；Valve is equipped with first pipeline and second pipe.The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device, is closed, heated up, by CO2Pressue device is to CO2Pressurizeed；Make high pressure CO2It is passed through high-temperature high-voltage reaction device, after reaction terminates, is cooled to room temperature, then by pressure relief device by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder is reclaimed；Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.
Description
【Technical field】
The present invention relates to a kind of devices and methods therefor that sound-absorbing material is prepared from discarded circuit board.
【Background technology】
Over nearly 10 years, with the development of electronics industry, the growth of electronic product production and consumption is extremely rapid.With electricity
The update of subclass product, generates substantial amounts of electronic waste.It is discarded as component units most basic in electronic waste
Printed substrate contains numerous heavy metal elements, resin and Inorganic Non-metallic Materials, huge unfavorable so as to be brought to environment
Influence.Therefore, high value added product is reclaimed from discarded circuit board has environmental benefit and economic benefit very high simultaneously.
At present, the recycling of discarded circuit board is using mechanical separation method that discarded circuit board is isolated first
Metal concentrate and nonmetallic enrichment body.Metal concentrate contains high-grade metal, and thus added value is higher, can be directly in city
Sold on field.And it is less for the recoverying and utilizing method of nonmetallic enrichment body, or reclaim added value of product it is relatively low.
【The content of the invention】
One of technical problems to be solved by the invention are to provide a kind of pollution-free, high added value from discarded circuit board
Prepare the device of sound-absorbing material.
The two of the technical problems to be solved by the invention are to provide a kind of pollution-free, high added value from discarded circuit board
The method for preparing sound-absorbing material.
The present invention solves one of technical problem using following technical scheme：
A kind of device that sound-absorbing material is prepared from discarded circuit board, including high-temperature high-voltage reaction device, temperature controller, pressure
Controller, CO2Gas cylinder, CO2Pressue device, pressure relief device；
The high-temperature high-voltage reaction device connects the temperature controller, the pressure controller respectively；
The top of the high-temperature high-voltage reaction device is connected to the pressure relief device by one first pipeline；The HTHP
The bottom of reactor is connected to the CO by a second pipe2Pressue device；
The CO2Gas cylinder one end is connected to the pressure relief device, and the other end is connected to the CO2Pressue device；
Valve is equipped with first pipeline and the second pipe.
The present invention solves the two of technical problem using following technical scheme：
A kind of method that sound-absorbing material is prepared from discarded circuit board, the method needs to provide as described above a kind of from discarded
Wiring board prepares the device of sound-absorbing material, specifically includes following steps：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device, solid-to-liquid ratio is 1:1~1:8g/
mL；
Close reactor high temperature high-pressure reactor, heat up, by temperature controller by temperature control be 180~280 degree；
Open CO2Gas cylinder, by CO2Pressue device is to CO2Pressurizeed；
Then high-temperature high-voltage reaction device bottom valve is opened, makes high pressure CO2High-temperature high-voltage reaction device is passed through, works as HTHP
When reactor pressure reaches 3~10MPa, high-temperature high-voltage reaction device bottom valve is closed immediately, the reaction time is controlled to 10~
30 minutes；
After reaction terminates, high-temperature high-voltage reaction device is cooled to room temperature, then opens high-temperature high-voltage reaction device top valve,
By pressure relief device by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder is reclaimed；
High-temperature high-voltage reaction device is opened, taking out product carries out separation of solid and liquid, and liquid product is steamed by conventional rotation
Hair technique reclaims n-hexane；
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.
A kind of method that sound-absorbing material is prepared from discarded circuit board, the method needs to provide as described above a kind of from discarded
Wiring board prepares the device of sound-absorbing material, specifically includes following steps：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device, solid-to-liquid ratio is 1:8g/mL；
Close reactor high temperature high-pressure reactor, heat up, by temperature controller by temperature control be 230 degree；
Open CO2Gas cylinder, by CO2Pressue device is to CO2Pressurizeed；
Then high-temperature high-voltage reaction device bottom valve is opened, makes high pressure CO2High-temperature high-voltage reaction device is passed through, works as HTHP
When reactor pressure reaches 7MPa, high-temperature high-voltage reaction device bottom valve is closed immediately, the reaction time is controlled to 20 minutes；
After reaction terminates, high-temperature high-voltage reaction device is cooled to room temperature, then opens high-temperature high-voltage reaction device top valve,
By pressure relief device by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder is reclaimed；
High-temperature high-voltage reaction device is opened, taking out product carries out separation of solid and liquid, and liquid product is steamed by conventional rotation
Hair technique reclaims n-hexane；
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.
The advantage of the invention is that：The present invention develop it is a kind of environment-friendly, almost non-secondary pollution from waste-line
Plate nonmetallic enrichment body in road prepares the method and its device of sound-absorbing material, it is achieved thereby that the nonmetallic enrichment body of discarded circuit board
High added value resource is reclaimed.
【Brief description of the drawings】
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is apparatus structure schematic diagram of the invention.
Fig. 2 is method of the present invention schematic flow sheet.
【Specific embodiment】
As shown in figure 1, a kind of device that sound-absorbing material is prepared from discarded circuit board, including high-temperature high-voltage reaction device 1, temperature
Controller 2, pressure controller 3, CO2Gas cylinder 4, CO2Pressue device 5, pressure relief device 6.High-temperature high-voltage reaction device 1 connects temperature respectively
Degree controller 2, pressure controller 3；The top of high-temperature high-voltage reaction device 1 is connected to pressure relief device 6 by the first pipeline 7；High temperature
The bottom of high-pressure reactor 1 is connected to CO by second pipe 82Pressue device 5；First pipeline 7 is provided with valve 9；Second pipe
Road 8 is provided with valve 10.CO2The one end of gas cylinder 4 is connected to pressure relief device 6, and the other end is connected to CO2Pressue device 5.
As shown in Fig. 2 a kind of method that sound-absorbing material is prepared from discarded circuit board, using above-mentioned one kind from discarded circuit
Plate prepares the device of sound-absorbing material, and specific method is referring to specific embodiment in detailed below：
First embodiment：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device 1, solid-to-liquid ratio is 1:8g/mL；
Reactor high temperature high-pressure reactor 1 is closed, is heated up, by temperature control be 230 degree by temperature controller 2；
Open CO2Gas cylinder 4, by CO2Pressue device 5 is to CO2Pressurizeed；
Then the bottom valve 10 of high-temperature high-voltage reaction device 1 is opened, makes high pressure CO2High-temperature high-voltage reaction device 1 is passed through, works as high temperature
When pressure reaches 3MPa in high-pressure reactor 1, the bottom valve 10 of high-temperature high-voltage reaction device 1 is closed immediately, the reaction time is controlled to
20 minutes；
After reaction terminates, high-temperature high-voltage reaction device 1 is cooled to room temperature, then opens the crown valve of high-temperature high-voltage reaction device 1
Door 9, by pressure relief device 6 by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder 4 is reclaimed；
High-temperature high-voltage reaction device 1 is opened, taking out product carries out separation of solid and liquid, and liquid product is steamed by conventional rotation
Hair technique reclaims n-hexane.
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.For acoustic absorptivity test
Product thickness be 20 millimeters, frequency range is 100-4000Hz, and average sound absorption coefficient is 0.45.
Second embodiment：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device 1, solid-to-liquid ratio is 1:5g/mL；
Reactor high temperature high-pressure reactor 1 is closed, is heated up, by temperature control be 180 degree by temperature controller 2；
Open CO2Gas cylinder 4, by CO2Pressue device 5 is to CO2Pressurizeed；
Then the bottom valve 10 of high-temperature high-voltage reaction device 1 is opened, makes high pressure CO2High-temperature high-voltage reaction device 1 is passed through, works as high temperature
When pressure reaches 5MPa in high-pressure reactor 1, the bottom valve 10 of high-temperature high-voltage reaction device 1 is closed immediately, the reaction time is controlled to
10 minutes；
After reaction terminates, high-temperature high-voltage reaction device 1 is cooled to room temperature, then opens the crown valve of high-temperature high-voltage reaction device 1
Door 9, by pressure relief device 6 by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder 4 is reclaimed；
High-temperature high-voltage reaction device 1 is opened, taking out product carries out separation of solid and liquid, and liquid product is steamed by conventional rotation
Hair technique reclaims n-hexane.
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.For acoustic absorptivity test
Product thickness be 20 millimeters, frequency range is 100-4000Hz, and average sound absorption coefficient is 0.65.
3rd embodiment：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device 1, solid-to-liquid ratio is 1:8g/mL；
High-temperature high-voltage reaction device 1 is closed, is heated up, by temperature control be 230 degree by temperature controller 2；
Open CO2Gas cylinder 4, by CO2Pressue device 5 is to CO2Pressurizeed；
Then the bottom valve 10 of high-temperature high-voltage reaction device 1 is opened, makes high pressure CO2High-temperature high-voltage reaction device 1 is passed through, works as reaction
When pressure reaches 7MPa in device, high-temperature high-voltage reaction device bottom valve is closed immediately, the reaction time is controlled to 20 minutes；
After reaction terminates, high-temperature high-voltage reaction device 1 is cooled to room temperature, then opens the crown valve of high-temperature high-voltage reaction device 1
Door 9, by pressure relief device 6 by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder is reclaimed；
High-temperature high-voltage reaction device 1 is opened, taking out product carries out separation of solid and liquid, and liquid product is steamed by conventional rotation
Hair technique reclaims n-hexane；
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.For acoustic absorptivity test
Product thickness be 20 millimeters, frequency range is 100-4000Hz, and average sound absorption coefficient is 0.9.
Fourth embodiment：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device 1, solid-to-liquid ratio is 1:10g/mL；
High-temperature high-voltage reaction device 1 is closed, is heated up, by temperature control be 280 degree by temperature controller 2；
Open CO2Gas cylinder 4, by CO2Pressue device 5 is to CO2Pressurizeed；
Then the bottom valve 10 of high-temperature high-voltage reaction device 1 is opened, makes high pressure CO2High-temperature high-voltage reaction device 1 is passed through, when high temperature is high
When pressure reaches 10MPa in pressure reactor 1, the bottom valve 10 of high-temperature high-voltage reaction device 1 is closed immediately, the reaction time is controlled to 30
Minute；
After reaction terminates, high-temperature high-voltage reaction device 1 is cooled to room temperature, then opens the crown valve of high-temperature high-voltage reaction device 1
Door 9, by pressure relief device 6 by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder is reclaimed；
High-temperature high-voltage reaction device 1 is opened, taking out product carries out separation of solid and liquid, and liquid product is steamed by conventional rotation
Hair technique reclaims n-hexane；
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.For acoustic absorptivity test
Product thickness be 20 millimeters, frequency range is 100-4000Hz, and average sound absorption coefficient is 0.8.
The present invention develop it is a kind of environment-friendly, almost non-secondary pollution from the nonmetallic enrichment system of discarded circuit board
The method and its device of standby sound-absorbing material, it is achieved thereby that the high added value resource of the nonmetallic enrichment body of discarded circuit board is returned
Receive.
Preferable implementation use-case of the invention is the foregoing is only, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent and improvement for being made etc., should be included in of the invention
Within protection domain.
Claims (3)
1. a kind of device that sound-absorbing material is prepared from discarded circuit board, it is characterised in that：
Including high-temperature high-voltage reaction device, temperature controller, pressure controller, CO2Gas cylinder, CO2Pressue device, pressure relief device；
The high-temperature high-voltage reaction device connects the temperature controller, the pressure controller respectively；
The top of the high-temperature high-voltage reaction device is connected to the pressure relief device by one first pipeline；The high-temperature high-voltage reaction
The bottom of device is connected to the CO by a second pipe2Pressue device；
The CO2Gas cylinder one end is connected to the pressure relief device, and the other end is connected to the CO2Pressue device；
Valve is equipped with first pipeline and the second pipe.
2. a kind of method that sound-absorbing material is prepared from discarded circuit board, it is characterised in that：The method needs to provide such as claim 1
A kind of described device that sound-absorbing material is prepared from discarded circuit board, specifically includes following steps：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device, solid-to-liquid ratio is 1:1~1:8g/mL；
Close reactor high temperature high-pressure reactor, heat up, by temperature controller by temperature control be 180~280 degree；
Open CO2Gas cylinder, by CO2Pressue device is to CO2Pressurizeed；
Then high-temperature high-voltage reaction device bottom valve is opened, makes high pressure CO2High-temperature high-voltage reaction device is passed through, works as high-temperature high-voltage reaction
When pressure reaches 3~10MPa in device, high-temperature high-voltage reaction device bottom valve is closed immediately, the reaction time is controlled to 10~30 points
Clock；
After reaction terminates, high-temperature high-voltage reaction device is cooled to room temperature, then opens high-temperature high-voltage reaction device top valve, passed through
Pressure relief device is by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder is reclaimed；
High-temperature high-voltage reaction device is opened, taking out product carries out separation of solid and liquid, and liquid product is by conventional rotary evaporation work
Skill reclaims n-hexane；
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.
3. a kind of method that sound-absorbing material is prepared from discarded circuit board, it is characterised in that：The method needs to provide such as claim 1
A kind of described device that sound-absorbing material is prepared from discarded circuit board, specifically includes following steps：
The nonmetallic enrichment body of discarded circuit board and n-hexane are added into high-temperature high-voltage reaction device, solid-to-liquid ratio is 1:8g/mL；
Close reactor high temperature high-pressure reactor, heat up, by temperature controller by temperature control be 230 degree；
Open CO2Gas cylinder, by CO2Pressue device is to CO2Pressurizeed；
Then high-temperature high-voltage reaction device bottom valve is opened, makes high pressure CO2High-temperature high-voltage reaction device is passed through, works as high-temperature high-voltage reaction
When pressure reaches 7MPa in device, high-temperature high-voltage reaction device bottom valve is closed immediately, the reaction time is controlled to 20 minutes；
After reaction terminates, high-temperature high-voltage reaction device is cooled to room temperature, then opens high-temperature high-voltage reaction device top valve, passed through
Pressure relief device is by CO2It is down to normal pressure and CO is entered by pipeline2Gas cylinder is reclaimed；
High-temperature high-voltage reaction device is opened, taking out product carries out separation of solid and liquid, and liquid product is by conventional rotary evaporation work
Skill reclaims n-hexane；
Isolated solid product is sound-absorbing material product, for the test of acoustic absorptivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175099.4A CN106782478B (en) | 2016-12-19 | 2016-12-19 | Device and method for preparing sound absorption material from waste circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611175099.4A CN106782478B (en) | 2016-12-19 | 2016-12-19 | Device and method for preparing sound absorption material from waste circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106782478A true CN106782478A (en) | 2017-05-31 |
| CN106782478B CN106782478B (en) | 2023-07-25 |
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ID=58889857
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611175099.4A Active CN106782478B (en) | 2016-12-19 | 2016-12-19 | Device and method for preparing sound absorption material from waste circuit board |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000276179A (en) * | 1999-03-26 | 2000-10-06 | Oji Paper Co Ltd | Sound absorbing material and production of this sound absorbing material |
| KR20040040165A (en) * | 2002-11-06 | 2004-05-12 | 한국지질자원연구원 | A Method for Concentrating and Recovering Precious Metals from Spent PCBs and Spent Auto-Catalysts Simultaneously |
| CN104671821A (en) * | 2015-02-27 | 2015-06-03 | 河南科技大学 | Low-cost porous ceramic sound absorbing material and preparation process thereof |
| CN105967738A (en) * | 2016-05-11 | 2016-09-28 | 东南大学 | Lightweight porous green building material produced by utilizing polycrystalline silicon waste residue, and preparation method of lightweight porous green building material |
| CN106082246A (en) * | 2016-06-03 | 2016-11-09 | 福建工程学院 | A kind of discarded circuit board prepares the method for high-purity porous silica |
-
2016
- 2016-12-19 CN CN201611175099.4A patent/CN106782478B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000276179A (en) * | 1999-03-26 | 2000-10-06 | Oji Paper Co Ltd | Sound absorbing material and production of this sound absorbing material |
| KR20040040165A (en) * | 2002-11-06 | 2004-05-12 | 한국지질자원연구원 | A Method for Concentrating and Recovering Precious Metals from Spent PCBs and Spent Auto-Catalysts Simultaneously |
| CN104671821A (en) * | 2015-02-27 | 2015-06-03 | 河南科技大学 | Low-cost porous ceramic sound absorbing material and preparation process thereof |
| CN105967738A (en) * | 2016-05-11 | 2016-09-28 | 东南大学 | Lightweight porous green building material produced by utilizing polycrystalline silicon waste residue, and preparation method of lightweight porous green building material |
| CN106082246A (en) * | 2016-06-03 | 2016-11-09 | 福建工程学院 | A kind of discarded circuit board prepares the method for high-purity porous silica |
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| CN106782478B (en) | 2023-07-25 |
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