CN202099060U - Alkaline process preparation system of high specific surface activated carbon - Google Patents
Alkaline process preparation system of high specific surface activated carbon Download PDFInfo
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- CN202099060U CN202099060U CN2011201983384U CN201120198338U CN202099060U CN 202099060 U CN202099060 U CN 202099060U CN 2011201983384 U CN2011201983384 U CN 2011201983384U CN 201120198338 U CN201120198338 U CN 201120198338U CN 202099060 U CN202099060 U CN 202099060U
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- activation furnace
- retrieving arrangement
- air outlet
- nitrogen
- nitrogen inlet
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Abstract
The utility model discloses an alkaline process preparation system of high specific surface activated carbon, which comprises a nitrogen supply device, an activation furnace, a first recovery device and a second recovery device, wherein the nitrogen supply device is communicated with a nitrogen inlet of the activation furnace through a first connecting pipeline; the activation furnace is a closed container, and a heating device is arranged in the activation furnace; the activation furnace comprises a first gas outlet, a second gas outlet and a nitrogen inlet; the first recovery device is a closed container provided with absorption liquid inside, and a second connecting pipeline is inserted into the first recovery device and extends below the liquid level of the absorption liquid; and the upper part of the liquid level of the absorption liquid is provided with a gas outlet. By the first recovery device, alkaline steam in the activation furnace is effectively recovered so as to avoid directly discharging the alkaline steam into the atmosphere to pollute the atmosphere and bring potential safety hazards; and by the second recovery device, alkaline particles obtained after the alkaline steam is cooled are filtered and recovered, and simultaneously dust is prevented from being discharged into the atmosphere.
Description
Technical field
The utility model relates to a kind of system for preparing gac, and more particularly, the utility model relates to a kind of preparation system that uses the alkali acvator to make active carbon with high specific surface area.
Background technology
Carbonized material has possessed the basic pore texture and the specific surface area of some amount in process of production, but differs greatly apart from the desired technical indicator of gac.Activation is exactly under the prerequisite that keeps the certain intensity of carbon granule, makes carbonized material have flourishing pore texture and huge specific surface area through technological measure, reaches the desired technical feature of gac.
Chinese patent 200920025172.9 discloses a kind of rotary cellular activated carbon activation furnace; Comprise vertical activation tube, vertical activation tube is provided with feed inlet and outlet, is provided with bin in the activation tube; Characteristic is that said vertical activation tube is provided with driving mechanism; Driving mechanism is provided with phonomoter, step-down gear, shaft coupling and vertical transmission shaft.
Chinese patent 200710056095.9 discloses a kind of charcoal revivifyig plant and activation method thereof, and this device is to be made up of the venetian blind type activation furnace and the coal gas recycle system.Activation furnace is to be formed by brick the building of window shutter that has oblique mouthful, flue in the middle of in the middle of the activation product channel, being provided with, and both sides are provided with the side flue, and activation product channels bottom communicates with the combustion chamber, and the bottom is provided with discharger; The coal gas recycle system be by the activation gas exit through pipeline and interchanger, spray column, steam separator, gas blower, gasburner, waste heat boiler, combustion chamber, the vent stack formation that links to each other.
Chinese patent 200710034228.2 discloses the activation furnace of a kind of production and reproducing activation block absorbent charcoal; There is the front portion to be provided with the closed furnace body of fire door; Body of heater is provided with thermal insulation layer, and it comprises that also places a kiln car that moves on the track, and this kiln car is provided with the upper strata carriage that can get into or withdraw from the body of heater inner chamber from the fire door bottom; Be equipped with the sealed metal container of band hermatic door on the said carriage, the suction opening with the vacuum pump outside the said body of heater is communicated with sealing metal vessel inner chamber through pipe; A said body of heater top and a upper lateral part, opposite side bottom are equipped with the TP of measuring corresponding site temperature in the stove respectively; And the SW of said each TP connects with corresponding digital temperature indicating meter respectively; Said body of heater inner chamber end face and bottom surface, left surface, right flank all are furnished with by the heating wire of three-phase supply through the power supply of three-phase contact type voltage regulator, are serially connected with the digital circuit table in every phase power source circuit.
One Chinese patent application 200810162825.8 discloses the basic metal continous treatment process that gac is made in a kind of alkali activation, and it comprises: the waste gas that gac produces is made in the alkali activation entered in the oxidizing tower through vapor pipe, vapor pipe is heated and is incubated; To pass through the step 1) expellant gas and in oxidizing tower, utilize air that basic metal is oxidized to alkalimetal oxide, and in air-flow, be cooled; To pass through step 2) cooled alkalimetal oxide powder gets in the drive of air-flow and reclaims the chamber, utilizes the dissolving of water spray to carry out washing and recycling reclaiming the chamber.
Chinese patent 200910009778.8 applications disclose a kind of external heating vertical active carbon activation furnace, and the urceolus of this activation furnace (13) is used the motor driven in rotation in the lower end; Be provided with heat tunnel (14) between the outer side of urceolus (13) and the furnace wall (15), urceolus hot-plate (3) and inner core hot-plate (6) be staggered arrangement successively vertically; Urceolus flight (4) and inner core flight (5) are installed in the downside of urceolus hot-plate (3) and inner core hot-plate (6) and in spiral distribution with hinge respectively; Gas-distributing pipe (7) is deep into the downside of inner core hot-plate (6), divides vent hole to be distributed in inner core hot-plate (6) downside; Inner core (16) has air outlet (17) on the sidewall of respective combustion chamber (1).
Because the reactivation process of gac is at high temperature carried out usually; Being used for alkali acvators such as activatory Pottasium Hydroxide, sodium hydroxide can at high temperature decompose; Form contaminative, the potassium steam of very corrosive, sodium steam; The shortcoming of technique scheme is that the device that is specifically designed to recycling potassium steam, sodium steam is not set.
Summary of the invention
To the shortcoming of prior art, the purpose of the utility model provides a kind of preparation system of active carbon with high specific surface area, and it is provided with the retrieving arrangement that can reclaim potassium steam, sodium steam.
To achieve these goals, the utility model provides a kind of system for preparing active carbon with high specific surface area, and this system comprises:
The nitrogen supply (NS) device, it is connected with the nitrogen inlet mouth of activation furnace through first connecting tube;
Activation furnace, it is an encloses container, is provided with heating unit in it; This activation furnace comprises first air outlet and nitrogen inlet mouth; Wherein, nitrogen inlet mouth place establishes and forms the nitrogen air curtain, and place, first air outlet is connected with second connecting tube;
First retrieving arrangement, it establishes the encloses container of absorption liquid in being, and second connecting tube injects in first retrieving arrangement, and extends to below the liquid level of absorption liquid; The liquid level top of absorption liquid is provided with the air outlet.
The device of the utility model is applicable to alkali to be the priming reaction of acvator.For example, be acvator with Pottasium Hydroxide, itself and the reaction at high temperature of charcoal particle are:
KOH+C→K
2CO
3+K
2O+H
2
KOH, K
2CO
3, K
2O forms etching to single graphite microcrystal or crystallite crowd and generates the hole in different apertures, and the micro-molecular gas that reaction generates in the reactivation process is like CO, CO
2, H
2, H
2O, H
2S etc., in the effusive process in existing duct, Yin Gaowen expands and plays the effect of reaming.In addition, in the activatory process, have potassium metal steam and produce.Potassium metal steam will get into graphite layers, the effect of performance pore-creating, reaming.
Because potassium metal steam is very active, directly contacting with air can blast.Generation for fear of blast will feed nitrogen in whole reactivation process, directly contact with air to stop potassium metal steam.
In order further to improve the thoroughness of the system of the utility model, preferably, in the system of the utility model, its activation furnace further comprises second air outlet, and this place, second air outlet is provided with explosion trap, and above-mentioned nitrogen air curtain is positioned at the inboard of this explosion trap.
Like this, the pressure in activation furnace surpasses certain limit, and Explosion-proof valve is opened automatically.Be provided with two effects like this: the one, when gaseous tension hour, block second air outlet of activation furnace, the barrier that overflows as the gas that stops in the activation furnace; The 2nd, when the violent expansion of the gas in the activation furnace surpasses certain limit (for example 3 kilograms), open automatically, avoid activation furnace to explode thorax.
The nitrogen air curtain is positioned at the inboard of explosion trap, has formed the twice barrier that stops the gas in the activation furnace to overflow with Explosion-proof valve.Even Explosion-proof valve is opened like this, under the stopping of nitrogen air curtain, the gas in the activation furnace still can't overflow.
In the entire reaction course and after the reaction, the gas in the activation furnace is passed in first retrieving arrangement and reclaims.Absorption liquid (for example water) in first retrieving arrangement will absorb KOH steam, K in the gas
2CO
3Steam, K
2O steam and high temperature potassium steam have in contaminative, corrodibility, the volatile hazardous gas feeding atmosphere to avoid these.
According to an embodiment of the utility model, activation furnace is provided with vertical gas pipeline; The vertical outlet of this gas pipeline is second air outlet, and this place, second air outlet is provided with explosion trap; The below of the sidewall of this gas pipeline, second air outlet has the nitrogen inlet mouth.The nitrogen inlet mouth is positioned under the Explosion-proof valve, and the high pressure nitrogen that constantly feeds forms the nitrogen air curtain at nitrogen inlet mouth place.
According to another embodiment of the utility model, the bottom of first retrieving arrangement is provided with first recovery channel that reclaims the liquid outlet and be connected in this recovery liquid outlet, and this first recovery channel is provided with valve.This first recovery channel is set collects the highly concentrated solution in first retrieving arrangement easily, so that recycle.
According to another embodiment of the utility model, this preparation system also can comprise second retrieving arrangement; This second retrieving arrangement is the container that is provided with opening for feed, venting port, filtering net; Opening for feed is located at the below of the second retrieving arrangement sidewall, filtering net, and is connected through the discharge port of the 3rd connecting tube with first retrieving arrangement; Venting port is arranged at the top of second retrieving arrangement, the top of filtering net, and venting port is outer can to connect gas exhaust duct.The length of the 3rd connecting tube is longer, and the gas in such first retrieving arrangement has the adequate time cooling in the process through the 3rd connecting tube.The KOH particle, the K that obtain after the cooling
2CO
3Particle, K
2Other dust of O particle is filtered net filtration, and is pollution-free to guarantee through the venting port expellant gas.
According to another embodiment of the utility model, the bottom of second retrieving arrangement is provided with material and reclaims mouth and be connected in second recovery channel that this material reclaims mouth, and this second recovery channel is provided with valve.This second recovery channel is set collects solid particulate and dust in second retrieving arrangement easily.
According to another embodiment of the utility model, activation furnace is the intermittent type activation furnace, and its side is provided with the end cap that can open.Open and to fill acvator behind the end cap and charcoal particulate material container to be activated is put into activation furnace, close upper end cover then and carry out priming reaction.Owing to link to each other in end cap and the stove, and end cap is generally steel, personnel, equipment produced dangerous for fear of the end cap temperature is too high, and this end cap is provided with the water cooled pipeline that is used for leading to water coolant.
According to another embodiment of the utility model, activation furnace is provided with tensimeter, is used to show the pressure in the cremator; First retrieving arrangement is provided with water level gauge, is used to show the water level in first retrieving arrangement.
According to another embodiment of the utility model, first retrieving arrangement is provided with pressure regulator valve, is used to regulate the pressure in the activation furnace.
According to another embodiment of the utility model, the heating unit in the activation furnace specifically can be one or more electrical heating wire.
According to another embodiment of the utility model, activation furnace also comprises the heating control cabinet that is used to control heating unit, to realize accurately controlling Heating temperature and heat-up time.
Compared with prior art, the utlity model has following beneficial effect:
1, through first retrieving arrangement is set, the alkali steam in the activation furnace is effectively reclaimed, avoid alkali steam directly to be discharged in the atmosphere contaminate environment and brought potential safety hazard;
2, through second retrieving arrangement is set, make the alkali particle that obtains after the alkali steam cooling be filtered and reclaim, avoided dust to enter in the atmosphere simultaneously;
3, through Explosion-proof valve is set, open automatically when making the pressure of Explosion-proof valve in activation furnace reach preset value, avoided the activation furnace internal pressure excessive and blast;
4, the nitrogen air curtain is positioned at the inboard of explosion trap, even Explosion-proof valve is opened, can stop that still the gas in the activation furnace overflows.
Below in conjunction with accompanying drawing the utility model is done further to specify.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the utility model along the longitudinal cross-section of its axis.
Embodiment
As shown in Figure 1, the specific embodiment of the utility model comprises: activation furnace 1, nitrogen supply (NS) device 2,
First retrieving arrangement 3, second retrieving arrangement 4.
Wherein, activation furnace 1 is an encloses container, is provided with material container such as nickel crucible 101, heating unit such as many electrical heating wires 102 in it; Its top is provided with vertical gas pipeline 103, and gas pipeline 103 vertical outlets are second air outlet, and this place, second air outlet is provided with explosion trap 104, and when the violent expansion of the gas in the activation furnace surpassed certain limit, explosion trap 104 was opened automatically.The below of the sidewall of gas pipeline 103, second air outlet is provided with nitrogen inlet mouth 105.The body of heater of activation furnace 1 is provided with first air outlet 106; Place, first air outlet 106 is connected with second connecting tube 107; Activation furnace 1 is the intermittent type activation furnace, and its side is provided with the end cap 108 that can open, and end cap is provided with the water cooled pipeline (not shown) that is used for logical water coolant.Activation furnace 1 is provided with and is used to show the tensimeter 109 in the stove.Activation furnace 1 also comprises the heating control cabinet 110 that is used to control electrical heating wire 102, to realize accurately controlling Heating temperature and heat-up time.
Nitrogen supply (NS) device 2 is connected with the nitrogen inlet mouth 105 of activation furnace 1 through first connecting tube 201;
First retrieving arrangement 3 is an encloses container, is provided with absorption liquid 306, the second connecting tubes 107 in it and injects in first retrieving arrangement 3, and extend to below the liquid level of absorption liquid 306; The top of absorption liquid 306 liquid levels, the top of first retrieving arrangement 3 are provided with air outlet 301.The bottom of first retrieving arrangement 3 is provided with first recovery channel 303 that reclaims liquid outlet 302 and be connected in this recovery liquid outlet 302, and this first recovery channel 303 is provided with valve.First retrieving arrangement 3 is provided with the water level gauge 304 that is used for water level in the display unit, and the pressure regulator valve 305 that is used to regulate activation furnace 1 internal pressure.
Second retrieving arrangement 4 is an encloses container, and it is provided with opening for feed 401, material reclaims mouth 402, venting port 403, filtering net 405.Opening for feed 401 is located at the sidewall of second retrieving arrangement 4, the below of filtering net 405, and is connected with the air outlet 301 of first retrieving arrangement 3 through the 3rd connecting tube 404; Material reclaims the bottom that mouth 402 is positioned at second retrieving arrangement 4; Venting port 403 is arranged at the top of second retrieving arrangement 4, the top of filtering net 405.Venting port 403 is externally connected with gas exhaust duct 408.The length of the 3rd connecting tube 404 is longer, and the gas in such first retrieving arrangement 3 has the adequate time cooling in the process through the 3rd connecting tube 404.Second recovery channel 406 is connected in material and reclaims mouth 402, and this second recovery channel 406 is provided with valve.
Though the utility model discloses as above with preferred embodiment, be not in order to limit the scope that the utility model is implemented.Any those of ordinary skill in the art, in the invention scope that does not break away from the utility model, when can doing a little improvement, promptly every equal improvement of doing according to the utility model, the invention scope that should be the utility model is contained.
Claims (10)
1. a system for preparing active carbon with high specific surface area is characterized in that, this system comprises:
The nitrogen supply (NS) device, it is connected with the nitrogen inlet mouth of activation furnace through first connecting tube;
Activation furnace, it is an encloses container, is provided with heating unit in it; Said activation furnace comprises first air outlet and nitrogen inlet mouth; Described nitrogen inlet mouth place establishes and forms the nitrogen air curtain, and place, described first air outlet is connected with second connecting tube;
First retrieving arrangement, it establishes the encloses container of absorption liquid in being, and said second connecting tube injects in said first retrieving arrangement, and extends to below the liquid level of said absorption liquid; The liquid level top of said absorption liquid is provided with the air outlet.
2. the system of claim 1 is characterized in that, described activation furnace further comprises second air outlet, and place, described second air outlet is provided with explosion trap, and described nitrogen air curtain is positioned at the inboard of this explosion trap.
3. system as claimed in claim 2 is characterized in that described activation furnace is provided with vertical gas pipeline; The vertical outlet of this gas pipeline is set to described second air outlet; The below of the sidewall of this gas pipeline, said second air outlet is provided with described nitrogen inlet mouth.
4. system as claimed in claim 3 is characterized in that, the bottom of described first retrieving arrangement is provided with first recovery channel that reclaims the liquid outlet and be connected in this recovery liquid outlet, and this first recovery channel is provided with valve.
5. like the described system of one of claim 1-4, it is characterized in that described system also comprises second retrieving arrangement; Said second retrieving arrangement is the container that is provided with opening for feed, venting port, filtering net; Said opening for feed is located at the below of the said second retrieving arrangement sidewall, said filtering net, and is connected through the discharge port of the 3rd connecting tube with said first retrieving arrangement; Said venting port is arranged at the top of said second retrieving arrangement, the top of said filtering net.
6. system as claimed in claim 5 is characterized in that, the bottom of described second retrieving arrangement is provided with material and reclaims mouth and be connected in second recovery channel that this material reclaims mouth, and said second recovery channel is provided with valve.
7. like the described system of one of claim 1-4, it is characterized in that the side of described activation furnace is provided with the end cap that can open, this end cap is provided with water cooled pipeline.
8. like the described system of one of claim 1-4, it is characterized in that described activation furnace is provided with tensimeter; Said first retrieving arrangement is provided with water level gauge.
9. like the described system of one of claim 1-4, it is characterized in that described first retrieving arrangement is provided with pressure regulator valve, be used to regulate the pressure in the said activation furnace.
10. like the described system of one of claim 1-4, it is characterized in that described system also comprises the heating control cabinet that is used to control said heating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201983384U CN202099060U (en) | 2011-06-13 | 2011-06-13 | Alkaline process preparation system of high specific surface activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201983384U CN202099060U (en) | 2011-06-13 | 2011-06-13 | Alkaline process preparation system of high specific surface activated carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202099060U true CN202099060U (en) | 2012-01-04 |
Family
ID=45385085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201983384U Expired - Lifetime CN202099060U (en) | 2011-06-13 | 2011-06-13 | Alkaline process preparation system of high specific surface activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202099060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249227A (en) * | 2011-06-13 | 2011-11-23 | 福建省龙岩龙能粉煤灰综合利用有限公司 | System for preparing high-specific-surface active carbon |
-
2011
- 2011-06-13 CN CN2011201983384U patent/CN202099060U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249227A (en) * | 2011-06-13 | 2011-11-23 | 福建省龙岩龙能粉煤灰综合利用有限公司 | System for preparing high-specific-surface active carbon |
| CN102249227B (en) * | 2011-06-13 | 2013-01-23 | 福建省龙岩龙能粉煤灰综合利用有限公司 | System for preparing high-specific-surface active carbon |
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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: 20120104 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |