CN106672969A - Active carbon rinsing method - Google Patents
Active carbon rinsing method Download PDFInfo
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- CN106672969A CN106672969A CN201611200032.1A CN201611200032A CN106672969A CN 106672969 A CN106672969 A CN 106672969A CN 201611200032 A CN201611200032 A CN 201611200032A CN 106672969 A CN106672969 A CN 106672969A
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- activated carbon
- temperature
- water
- rinsing method
- pressure
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Abstract
The invention belongs to the field of the production of active carbon, and particularly discloses an active carbon rinsing method. The method adopts a novel process of steam and water rinsing, utilizes the hydrogen peroxide and alcohol to treat active carbon, then utilizes high-temperature vapor to dually flush the active carbon, and utilizes the normal-temperature water to spray-rinse the active carbon, so that the rinsing task which can only be completed with 50 tons of water originally can be completed with 3 to 5 tons of water now, the consumption of water is greatly saved, and the environmental load can be reduced.
Description
Technical field
The invention belongs to Activated Carbon Production field, and in particular to activated carbon rinsing method.
Background technology
Rinsing is the committed step in process for preparing activated carbon, and the purpose of rinsing is removed in raw material and the course of processing
Various impurity, chloride, total iron compound, ash equal size and the acid-base value for making activated carbon all reach the set quota.Rinsing
Being divided into two steps is carried out, and is first to add hydrochloric acid to remove iron compound, therefore referred to as pickling, " is boiled also known as acid treatment or cry
Ferrum "；Next to that plus the acid of alkali summation, except dechlorination root, and use hot water cyclic washing, therefore cry washing.But drop significantly in prior art
The activity of low activity charcoal, and new harmful substance is introduced, the application for causing activated carbon is restricted, and rinse cycle
Middle water consumption is big, in the case of water resource critical shortage, how to reduce rinsing water amount and become the technology of urgent need to resolve to ask
Topic.
The content of the invention
The technical problem to be solved is to provide a kind of activated carbon rinsing method, and the method can greatly reduce rinsing
During water consumption, water consumption less than former rinsing water amount 10%.
The technical solution used in the present invention is：The activated carbon rinsing method, the method is comprised the following steps：
(1) rough wood activated charcoal is dried, is placed in the hydrogen peroxide that 3~8 times of volumetric concentrations are 30~34% and soaks 2.8
~3.5h, filters；
(2) during 3~8 times of ethanol is added in step (1), 40~50min is soaked, is filtered；
(3) product that step (2) is filtrated to get, after ventilation is dried, using 600~700 that pressure is 1.57~2.8MPa
DEG C high-temperature steam rinses 45~60min to it；
(4) after the completion of step (3), be continuing with 720~750 DEG C of high-temperature steams that pressure is 3~4.5MPa rinse 80~
90min；
(5) after the completion for the treatment of step (4), using the uniform hydro-peening of normal-temperature water, until activated carbon temperature is down to 102~105 DEG C, do
It is dry.
Wherein, above-mentioned activated carbon rinsing method, the particle diameter of rough wood activated charcoal described in step (1) is 1.0~3mm.
Wherein, above-mentioned activated carbon rinsing method, the volume fraction of ethanol described in step (2) is 90~99%.
Wherein, above-mentioned activated carbon rinsing method, washing condition described in step (3) be pressure 1.8MPa, high-temperature steam 630
DEG C, rinse 50min.
Wherein, above-mentioned activated carbon rinsing method, washing condition described in step (4) be pressure 3.3MPa, high-temperature steam 720
DEG C, rinse 90min.
Wherein, above-mentioned activated carbon rinsing method, the ejection flow of normal-temperature water described in step (5) is 2.0~3.5L/h.
The invention has the beneficial effects as follows：Innovative research of the present invention has gone out the new technology of steam+water rinsing, can cause original
Need 50 tons of water to rinse the rinsing task for completing, become 3~5 tons of present water, be saved greatly the usage amount of water, drop
Low magnificent scape load.
Specific embodiment
The activated carbon rinsing method that the present invention is provided, the method is comprised the following steps：
(1) rough wood activated charcoal is dried, is placed in the hydrogen peroxide that 3~8 times of volumetric concentrations are 30~34% and soaks 2.8
~3.5h, filters；
(2) during 3~8 times of ethanol is added in step (1), 40~50min is soaked, is filtered；
(3) product that step (2) is filtrated to get, after ventilation is dried, using 600~700 that pressure is 1.57~2.8MPa
DEG C high-temperature steam rinses 45~60min to it；
(4) after the completion of step (3), be continuing with 720~750 DEG C of high-temperature steams that pressure is 3~4.5MPa rinse 80~
90min；
(5) after the completion for the treatment of step (4), using normal-temperature water hydro-peening, the purpose of hydro-peening is to make activated carbon slow cooling, it is to avoid huge
Big temperature change is impacted to Properties of Activated Carbon, until activated carbon temperature is down to 102~105 DEG C, is dried.
Wherein, above-mentioned activated carbon rinsing method, the particle diameter of rough wood activated charcoal described in step (1) is 1.0~3mm.
Wherein, above-mentioned activated carbon rinsing method, the volume fraction of ethanol described in step (2) is 90~99%.
Preferably, above-mentioned activated carbon rinsing method, washing condition described in step (3) be pressure 1.8MPa, high-temperature steam
630 DEG C, rinse 50min.Activation processing is carried out to activated carbon using high-temperature steam, high-temperature steam drives activated carbon in reaction tank
Constantly rolling, and the impurity in activated carbon is cemented out；Meanwhile, the hydrogen peroxide inside activated carbon decomposes rapidly at high temperature
Become oxygen and water, oxygen can make activated carbon form more holes, the filtration hole number of the activated carbon for increasing improves work
The strainability of property charcoal.
Preferably, above-mentioned activated carbon rinsing method, washing condition described in step (4) be pressure 3.3MPa, high-temperature steam
720 DEG C, rinse 90min.It is continuing with high-temperature vapor to activate activated carbon, substitutional impurity, cleans hydrogen peroxide or wine
The residues such as essence, make the brighter of activated carbon, and purity is higher, due to hydrogen peroxide be completely decomposed at high temperature oxygen and
Water, ethanol is also rinsed totally, therefore the activated carbon for obtaining does not have other impurities or harmful substance, and the field of application is wider
It is wealthy.
Wherein, above-mentioned activated carbon rinsing method, the ejection flow of normal-temperature water described in step (5) is 2.0~3.5L/h.
With reference to specific embodiment, be expanded on further the present invention, embodiment be merely to illustrate the present invention rather than
Limit the scope of the present invention, the generally implementation of unreceipted actual conditions in embodiment, routinely condition.
Embodiment 1
Activated carbon rinsing method, the method is comprised the following steps：
(1) rough wood activated charcoal (particle diameter be 1.0~3mm) is dried, is placed in the hydrogen peroxide that 3 times of volumetric concentrations are 30%
Middle immersion 2.8h, filters；
(2) during 4 times of ethanol is added in step (1), 50min is soaked, is filtered；The volume fraction of the ethanol is
90%；
(3) product that step (2) is filtrated to get, after ventilation is dried, using 600 DEG C of high-temperature steams that pressure is 1.57MPa
60min is rinsed to it；
(4) after the completion of step (3), 720 DEG C of high-temperature steams that pressure is 3MPa are continuing with and rinse 90min；
(5) after the completion for the treatment of step (4), using normal-temperature water hydro-peening, the ejection flow of normal-temperature water is 2.0L/h, the purpose of hydro-peening
It is to make activated carbon slow cooling, it is to avoid huge temperature change is impacted to Properties of Activated Carbon, until activated carbon temperature is down to 102
DEG C, it is dried.
The rinse method of embodiment 1 uses 5.0 tons of water, only the 10% of conventional rinse water consumption altogether.
Embodiment 2
Activated carbon rinsing method, the method is comprised the following steps：
(1) rough wood activated charcoal (particle diameter be 1.0~3mm) is dried, is placed in the hydrogen peroxide that 3 times of volumetric concentrations are 30%
Middle immersion 2.8h, filters；
(2) during 4 times of ethanol is added in step (1), 45min is soaked, is filtered；The volume fraction of the ethanol is
94%；
(3) product that step (2) is filtrated to get, after ventilation is dried, using 630 DEG C of high-temperature steams pair that pressure is 1.8MPa
It rinses 50min；
(4) after the completion of step (3), 720 DEG C of high-temperature steams that pressure is 3.3MPa are continuing with and rinse 90min；
(5) after the completion for the treatment of step (4), using normal-temperature water hydro-peening, the ejection flow of normal-temperature water is 3.0L/h, the purpose of hydro-peening
It is to make activated carbon slow cooling, it is to avoid huge temperature change is impacted to Properties of Activated Carbon, until activated carbon temperature is down to 102
DEG C, it is dried.
The rinse method of embodiment 2 uses 4.7 tons of water, only the 9.4% of conventional rinse water consumption altogether.
Embodiment 3
Activated carbon rinsing method, the method is comprised the following steps：
(1) rough wood activated charcoal (particle diameter be 1.0~3mm) is dried, is placed in the hydrogen peroxide that 7 times of volumetric concentrations are 30%
Middle immersion 3.5h, filters；
(2) during 7 times of ethanol is added in step (1), 40min is soaked, is filtered；The volume fraction of the ethanol is
98%；
(3) product that step (2) is filtrated to get, after ventilation is dried, using 700 DEG C of high-temperature steams pair that pressure is 2.8MPa
It rinses 50min；
(4) after the completion of step (3), 750 DEG C of high-temperature steams that pressure is 4.0MPa are continuing with and rinse 90min；
(5) after the completion for the treatment of step (4), using normal-temperature water hydro-peening, the ejection flow of normal-temperature water is 3.0L/h, the purpose of hydro-peening
It is to make activated carbon slow cooling, it is to avoid huge temperature change is impacted to Properties of Activated Carbon, until activated carbon temperature is down to 102
DEG C, it is dried.
The rinse method of embodiment 3 uses 3.6 tons of water, only the 7.2% of conventional rinse water consumption altogether.
Technological means disclosed in the present invention program are not limited only to the technological means disclosed in above-mentioned embodiment, also include
The technical scheme being made up of above technical characteristic combination in any.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (6)
1. activated carbon rinsing method, it is characterised in that the method is comprised the following steps：
(1) rough wood activated charcoal is dried, be placed in immersion 2.8 in the hydrogen peroxide that 3~8 times of volumetric concentrations are 30~34%~
3.5h, filters；
(2) during 3~8 times of ethanol is added in step (1), 40~50min is soaked, is filtered；
(3) product that step (2) is filtrated to get is high using 600~700 DEG C that pressure is 1.57~2.8MPa after ventilation is dried
Warm steam rinses 45~60min to it；
(4) after the completion of step (3), be continuing with 720~750 DEG C of high-temperature steams that pressure is 3~4.5MPa rinse 80~
90min；
(5) after the completion for the treatment of step (4), using the uniform hydro-peening of normal-temperature water, until activated carbon temperature is down to 102~105 DEG C, drying is
Can.
2. activated carbon rinsing method according to claim 1, it is characterised in that rough wood activated charcoal described in step (1)
Particle diameter be 1.0~3mm.
3. activated carbon rinsing method according to claim 1, it is characterised in that the volume fraction of ethanol described in step (2)
For 90~99%.
4. activated carbon rinsing method according to claim 1, it is characterised in that washing condition described in step (3) is pressure
1.8MPa, 630 DEG C of high-temperature steam rinses 50min.
5. activated carbon rinsing method according to claim 1, it is characterised in that washing condition described in step (4) is pressure
3.3MPa, 720 DEG C of high-temperature steam rinses 90min.
6. activated carbon rinsing method according to claim 1, it is characterised in that the discharging jet of normal-temperature water described in step (5)
Measure as 2.0~3.5L/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200032.1A CN106672969A (en) | 2016-12-22 | 2016-12-22 | Active carbon rinsing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200032.1A CN106672969A (en) | 2016-12-22 | 2016-12-22 | Active carbon rinsing method |
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Family
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| CN201611200032.1A Pending CN106672969A (en) | 2016-12-22 | 2016-12-22 | Active carbon rinsing method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029193A (en) * | 2009-09-30 | 2011-04-27 | 中国石油化工集团公司 | Active carbon serving as catalyst carrier and treatment method and application thereof |
| CN105460932A (en) * | 2015-12-04 | 2016-04-06 | 北海和荣活性炭科技有限责任公司 | Method for purifying cocoanut shell activated carbon |
| CN106241801A (en) * | 2016-07-19 | 2016-12-21 | 句容市百诚活性炭有限公司 | A kind of preparation method of high conductivity activated carbon |
-
2016
- 2016-12-22 CN CN201611200032.1A patent/CN106672969A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029193A (en) * | 2009-09-30 | 2011-04-27 | 中国石油化工集团公司 | Active carbon serving as catalyst carrier and treatment method and application thereof |
| CN105460932A (en) * | 2015-12-04 | 2016-04-06 | 北海和荣活性炭科技有限责任公司 | Method for purifying cocoanut shell activated carbon |
| CN106241801A (en) * | 2016-07-19 | 2016-12-21 | 句容市百诚活性炭有限公司 | A kind of preparation method of high conductivity activated carbon |
Non-Patent Citations (1)
| Title |
|---|
| 翟玲娟等: "活性炭的双氧水表面改性及其防护性能", 《船舰防化》 * |
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