CN201882915U - Device for preparing activated carbon with sludge - Google Patents
Device for preparing activated carbon with sludge Download PDFInfo
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- CN201882915U CN201882915U CN2010206430674U CN201020643067U CN201882915U CN 201882915 U CN201882915 U CN 201882915U CN 2010206430674 U CN2010206430674 U CN 2010206430674U CN 201020643067 U CN201020643067 U CN 201020643067U CN 201882915 U CN201882915 U CN 201882915U
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- drying machine
- carbonization
- activator
- mud
- gac
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Abstract
The utility model discloses a device for preparing activated carbon with sludge, which comprises a mixing and soaking reactor, a soaked sludge dryer, a carbonization activator, a washing reactor and an activated carbon dryer. The carbonization activator is provided with a high-temperature low-oxygen-content flue gas inlet for oxygen controlled combustion and an activated flue gas outlet, the soaked sludge dryer and the activated carbon dryer are respectively provided with a first activated flue gas outlet, a second activated flue gas outlet, a first dried flue gas outlet and a second dried flue gas outlet, the flue gas outlet of the carbonization activator is respectively connected with the first activated flue gas outlets and the second activated flue gas outlets, the first dried flue gas outlets and the second dried flue gas outlets are emptied, the outlet of the mixing and soaking reactor is connected with the inlet of the soaked sludge dryer, the outlet of the soaked sludge dryer is connected with the inlet of the carbonization activator, the outlet of the carbonization activator is connected with the inlet of the washing reactor, and the outlet of the washing reactor is connected with the inlet of the activated carbon dryer.
Description
Technical field
The utility model relates to the device that a kind of mud prepares gac; relate in particular to a kind of high-temperature flue gas that utilizes and will moisture 80% dewatered sludge directly prepare the device of gac as thermal source, activated media and protection gas, with improve efficiency of energy utilization, reduction mud prepares the gac cost.
Background technology
Be accompanied by the fast development of global economy and the people growing interest to environment, sewage load increases at a high speed, has caused the rapid expansion of sludge yield.At present, China's annual discharging dewatered sludge is about 5,000,000 tons, and in continuous increase, as deal with improperly and can cause serious secondary pollution, the investment and the working cost of sludge treatment are huge simultaneously, account for 25%～65% of investment of entire sewage factory and working cost, become the heavy burden that sewage work faces.
Gac is as a kind of adsorption catalysis material; water insoluble and organic solvent; easily regeneration; organic or inorganic material in gas, the solution and colloidal solid etc. there is very strong adsorptive power; have enough chemical stabilities and acidproof, alkaline-resisting, thermotolerance, be used widely at numerous areas such as oil, chemical industry, food, light industry, national defence, environment protection.Containing more carbon in the mud, is that raw material can make carbon-bearing adsorbent by modification with mud under certain high temperature.The sorbent material that makes has very high COD clearance, it is a kind of treatment of Organic Wastewater agent of excellent property, adsorb saturated sorbent material if can not regenerate, can under control tail gas condition, burn, the injurious factor in the primary sludge is decomposed by exhaustive oxidation as fuel.
Existing chemical method mud prepares in the activated carbon process, and the dry earlier washing of dewatered sludge is flooded, with high temperature inert gas (CO again
2Or N
2) for the sludge carbonization activation provides heat, and as protection gas.So the pyritous rare gas element has both increased facility investment generally by adopting other fuel indirect heating to obtain, many again energy consumptions have increased the manufacturing cost of gac, and complex process has hindered the industrial applications that mud prepares gac.
The utility model is that about 80% dewatered sludge is a raw material with water ratio, not drying and direct impregnation, adopt high-temperature low-oxygen stack gas for activated media and for the sludge carbonization activation provides required heat, reduced the consumption of high-grade energy, reduced running cost.Because flue gas has certain oxygen level, under the hot conditions, the oxygen of trace can reach the purpose of preoxidation mud, increases the Sludge Surface activity, promotes the quality of activated carbon product.
The utility model content
The utility model provides a kind of mud of a kind of economy, energy-saving and environmental protection to prepare the device of gac; utilize activated media, the protection gas of high-temperature low-oxygen flue gas as sludge carbonization; for the preoxidation of raw material provides oxygen part; and provide the thermal source of carbonization-activation; reduce the consumption of high-grade energy, the complicacy of technology and the manufacturing cost of active sludge carbon, improved the integration that rate of energy and mud prepare activated carbon system.
The utility model adopts following technical scheme:
A kind of dewatered sludge prepares the device of gac, comprise the hybrid infusion still, drying machine behind the mud dipping, carbonization activator, the washing still, the gac drying machine, on carbonization activator, be provided with control oxygen incendiary high-temperature low-oxygen gas approach and activation back exhanst gas outlet, on mud dipping after drying machine and gac drying machine, establish the 1st activation back gas approach respectively, the 2nd activation back gas approach and the 1st dry back exhanst gas outlet, the 2nd dry back exhanst gas outlet, the exhanst gas outlet of carbonization activator respectively be located at mud dipping after drying machine and link to each other with the 1st activation back gas approach and the 2nd activation back gas approach on the gac drying machine, the 1st dry back exhanst gas outlet emptying on the mud dipping after drying machine and the 2nd dry back exhanst gas outlet emptying on the gac drying machine, the outlet of hybrid infusion still links to each other with the import of mud dipping after drying machine, the outlet of mud dipping after drying machine links to each other with the carbonization activator import, the carbonization activator outlet links to each other with the import of washing still, the outlet of washing still links to each other with the import of gac drying machine.
Compared with prior art, the utlity model has following advantage:
1, the utility model is respectively equipped with the flue gas import and export on carbonization activator and mud dipping after drying machine and gac drying machine, can adopt flue gas as sludge carbonization activatory thermal source, and the fume afterheat after effectively utilization activates is as product mummification thermal source, improve energy utilization rate, reduced the cost that energy consumption and mud prepare gac.
Protection gas, activated media when 2, the utility model can adopt the flue gas of high temperature low oxygen content to activate as sludge carbonization, the active sludge carbon manufacturing process has been simplified in the application of having saved pure gas.
3, the utility model can adopt the flue gas of high temperature low oxygen content to use as activated media, oxygen part in the flue gas can be used as mud preoxidation oxygen source, make the surfactivity of mud granule increase, the easier feed particles inside that is deep into of activation makes the prosperity of gac hole.
4, the utility model directly adopts the dewatered sludge of water ratio about 80% to prepare gac, saves the dry link when mud prepared gac in the past, has reduced energy consumption, has simplified active sludge carbon preparation technology, and system is highly integrated, simple to operateization.
5, the utility model has fully been realized the treatment of wastes with processes of wastes against one another, turns waste into wealth, and the gac safety of preparation, stable, pollution-free has effectively been utilized flue gas, and made the real stabilization of mud, innoxious, resource utilization.
Description of drawings:
Fig. 1 is the device synoptic diagram that dewatered sludge of the present utility model prepares gac.
Among Fig. 1,1, dipping still 2, mud dipping after drying machine 3, carbonization activator 4, washing still 5, gac drying machine.
Embodiment
A kind ofly implement the device that above-mentioned mud prepares gac, comprise hybrid infusion still 1, drying machine 2 behind the mud dipping, carbonization activator 3, washing still 4, gac drying machine 5, on carbonization activator 3, be provided with control oxygen incendiary high-temperature low-oxygen gas approach and activation back exhanst gas outlet, on mud dipping after drying machine 2 and gac drying machine 5, establish the 1st activation back gas approach respectively, the 2nd activation back gas approach and the 1st dry back exhanst gas outlet, the 2nd dry back exhanst gas outlet, the exhanst gas outlet of carbonization activator 3 respectively be located at mud dipping after drying machine 2 and link to each other with the 1st activation back gas approach and the 2nd activation back gas approach on the gac drying machine 5, the 1st dry back exhanst gas outlet emptying on the mud dipping after drying machine 2 and the 2nd dry back exhanst gas outlet emptying on the gac drying machine 5,1 outlet of hybrid infusion still links to each other with 2 imports of mud dipping after drying machine, 2 outlets of mud dipping after drying machine link to each other with carbonization activator 3 imports, carbonization activator 3 outlets link to each other with 4 imports of washing still, 4 outlets of washing still link to each other with 5 imports of gac drying machine.
With reference to the accompanying drawings, the utility model is made more detailed explanation:
With reference to Fig. 1, the wet mud of a kind of 80% dehydration directly prepares the device of gac, comprise hybrid infusion still 1, drying machine 2 behind the mud dipping, carbonization activator 3, washing still 4, gac drying machine 5, on carbonization activator 3, be provided with control oxygen incendiary high-temperature low-oxygen gas approach and activation back exhanst gas outlet, on mud dipping after drying machine 2 and gac drying machine 5, establish the 1st activation back gas approach respectively, the 2nd activation back gas approach and the 1st dry back exhanst gas outlet, the 2nd dry back exhanst gas outlet, the exhanst gas outlet of carbonization activator 3 respectively be located at mud dipping after drying machine 2 and link to each other with the 1st activation back gas approach and the 2nd activation back gas approach on the gac drying machine 5, the 1st dry back exhanst gas outlet emptying on the mud dipping after drying machine 2 and the 2nd dry back exhanst gas outlet emptying on the gac drying machine 5,1 outlet of hybrid infusion still links to each other with 2 imports of mud dipping after drying machine, 2 outlets of mud dipping after drying machine link to each other with carbonization activator 3 imports, carbonization activator 3 outlets link to each other with 4 imports of washing still, 4 outlets of washing still link to each other with 5 imports of gac drying machine.
(activation under the oxygen free condition) is that 80% municipal sludge is sent in the dipping still 1, with ZnCl with water ratio
2Be activator; press the wet mud of impregnating ratio 5:1(: activator) mud was flooded 16 hours in dipping still 1; mud oven dry after 500 ℃ the stack gas waste heat that adopts part to activate will flood in drying machine 2; send into subsequently in the carbonization activator 3 with nitrogen as protection gas; under anoxia condition, carry out carbonization-activation; control sludge activation temperature is 550 ℃, and soak time is 90 minutes.With after scouring, oven dry, obtain the dry product gac, its specific surface area is 493.1m
2/ g, methylene blue adsorption value are 120.1mg/g.
(under the aerobic conditions) is that 80% municipal sludge is sent in the dipping still 1, with ZnCl with water ratio
2Be activator, press the wet mud of impregnating ratio 5:1(: activator) mud was flooded 16 hours in dipping still 1, mud oven dry after 500 ℃ the stack gas waste heat that adopts part to activate will flood in drying machine 2, send into subsequently in the carbonization activator 3 and to adopt that oxygen level is 2%, temperature is that 600 ℃ high-temperature low-oxygen flue gas carries out carbonization-activation, control sludge activation temperature is 550 ℃, and soak time is 90 minutes.With after scouring, and with the oven dry of 500 ℃ that activated stack gas waste heat, obtain the dry product gac, its specific surface area is 516.1m
2/ g, methylene blue adsorption value are 129.8mg/g, and pore volume is 0.29cm
3/ g, micro pore volume are 0.16cm
3/ g, mean pore size is 3.95nm.
With water ratio is that 80% municipal sludge is sent in the dipping still 1, with ZnCl
2Be activator, press the wet mud of impregnating ratio 5:1(: activator) mud was flooded 16 hours in dipping still 1, mud oven dry after 500 ℃ the stack gas waste heat that adopts part to activate will flood in drying machine 2, send into subsequently in the carbonization activator 3 and to adopt that oxygen level is 4%, temperature is that 600 ℃ high-temperature low-oxygen flue gas carries out carbonization-activation, control sludge activation temperature is 550 ℃, and soak time is 90 minutes.With after scouring, and with the oven dry of 500 ℃ that activated stack gas waste heat, obtain the dry product gac, its specific surface area is 512.8m
2/ g, methylene blue adsorption value are 129.1mg/g.
Oxygen can with carbon skeleton surface group generation oxidizing reaction, promote the formation and the development of activated carbon capillary.But when too high oxygen level, Sauerstoffatom and carbon skeleton surface group speed of response are exceedingly fast, many oxygen molecules have little time to be diffused into the charcoal granule interior at all and just react with surface group, the formation and the development of micropore have been limited, simultaneously, also make established micropore wall be burnt, widen, gac specific surface area and micro pore volume can decline to a great extent with the increase of oxygen level, the absorption property variation.
Claims (1)
1. a mud prepares the device of gac, it is characterized in that, comprise hybrid infusion still (1), drying machine (2) behind the mud dipping, carbonization activator (3), washing still (4), gac drying machine (5), on carbonization activator (3), be provided with control oxygen incendiary high-temperature low-oxygen gas approach and activation back exhanst gas outlet, on mud dipping after drying machine (2) and gac drying machine (5), establish the 1st activation back gas approach respectively, the 2nd activation back gas approach and the 1st dry back exhanst gas outlet, the 2nd dry back exhanst gas outlet, the exhanst gas outlet of carbonization activator (3) respectively be located at mud dipping after drying machine (2) and gac drying machine (5) on the 1st activation back gas approach and the 2nd activation after gas approach link to each other, the 1st dry back exhanst gas outlet emptying on the mud dipping after drying machine (2) and the 2nd dry back exhanst gas outlet emptying on the gac drying machine (5), hybrid infusion still (1) outlet links to each other with the import of mud dipping after drying machine (2), mud dipping after drying machine (2) outlet links to each other with carbonization activator (3) import, carbonization activator (3) outlet links to each other with the import of washing still (4), washing still (4) outlet links to each other with gac drying machine (5) import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206430674U CN201882915U (en) | 2010-12-06 | 2010-12-06 | Device for preparing activated carbon with sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206430674U CN201882915U (en) | 2010-12-06 | 2010-12-06 | Device for preparing activated carbon with sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882915U true CN201882915U (en) | 2011-06-29 |
Family
ID=44180453
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206430674U Expired - Lifetime CN201882915U (en) | 2010-12-06 | 2010-12-06 | Device for preparing activated carbon with sludge |
Country Status (1)
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|---|---|
| CN (1) | CN201882915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985355A (en) * | 2010-12-06 | 2011-03-16 | 东南大学 | Method and device for preparing activated carbon by using sludge |
| CN103145307A (en) * | 2013-04-02 | 2013-06-12 | 湖北博实城乡环境能源工程有限公司 | High temperature carbonization system of sludge and carbonization process |
-
2010
- 2010-12-06 CN CN2010206430674U patent/CN201882915U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985355A (en) * | 2010-12-06 | 2011-03-16 | 东南大学 | Method and device for preparing activated carbon by using sludge |
| CN101985355B (en) * | 2010-12-06 | 2012-11-14 | 东南大学 | Method and device for preparing activated carbon by using sludge |
| CN103145307A (en) * | 2013-04-02 | 2013-06-12 | 湖北博实城乡环境能源工程有限公司 | High temperature carbonization system of sludge and carbonization process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |