CN1075932A - Fibre active carbon method for continuous production and production stove - Google Patents
Fibre active carbon method for continuous production and production stove Download PDFInfo
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- CN1075932A CN1075932A CN93101432A CN93101432A CN1075932A CN 1075932 A CN1075932 A CN 1075932A CN 93101432 A CN93101432 A CN 93101432A CN 93101432 A CN93101432 A CN 93101432A CN 1075932 A CN1075932 A CN 1075932A
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- active carbon
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
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- Inorganic Chemistry (AREA)
- Inorganic Fibers (AREA)
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Abstract
The invention discloses a kind of fibre active carbon method for continuous production and produce stove, with the water vapour that is introduced into the activation furnace section except that carrying out the activator effect, the remainder water steam enters the carbide furnace section, the production stove is a vertical heater, 45 °～90 ° at upright angle, opening for feed adopts open type or semi-open-type, and raw fibre is admitted to combustion chamber serially through giving feed roller, carry out falling into sealed cistern after carbonization and the reactivation process, take out continuously by getting feed roller again.Under normal circumstances, disconnected bar do not occur, can realize safety and stability production.
Description
The present invention relates to the preparation of fibre active carbon, more specifically say so a kind of fibre active carbon method for continuous production and production stove.
Fibre active carbon is a kind of novel absorption material that has begun to occur since external the seventies, because it has excellent performance, purposes is increasingly extensive, cause the attention of various countries, in the method for existing manufacturing fibre active carbon, the production method that compartment is arranged, according to the method, material carbonization and reactivation process are undertaken by controlled temperature and atmosphere in an airtight body of heater, adopt the calorific loss of this compartment production method big, production unit is fragile, and production efficiency is low, is unfavorable for the industrial preparation fibre active carbon.Be head it off, the method and apparatus of continous way manufacturing fibre active carbon has been studied by some countries, the content that the USSR (Union of Soviet Socialist Republics) prospectus discloses this respect No. 1585413, its production stove is made of two vertical retorts and two vertical activation furnaces that the stove bottom connects, by roller bearing material can be transmitted continuously in stove, with the realization continuous production, but because contraction and the strength reduction of material in carbonization process, this equipment is difficult to guarantee the integrity of product, and the equipment complexity.Japanese Patent has proposed a kind of method that adopts horizontal chamber oven continuous production fibre active carbon for No. 77024133, this horizontal chamber oven is made of the gas displacement chamber, carbonization chamber, activating chamber and the cooling room that connect, the material flipe is placed on the circulation link chain, can be in stove continuous operation, though solved the product integrity issue, equipment is huge, circulation link chain easy break-down at high temperature, and the feeding mouth of stove need use inert gas seal, makes troubles to production.
Task of the present invention provides a kind of novel steady in a long-termly making the method for fibre active carbon continuously and produce stove.
Task of the present invention is by following method and produces stove and realize.
A kind of fibre active carbon method for continuous production, it comprises: contain felt, anti-flame processing and dehydration, exsiccant raw materials pretreatment, carbonization, activation, washing and finishing process, the water vapor that is put into the activation furnace section is except that carrying out the activator effect, remainder water steam enters the carbide furnace section with hot gas flow, these water vapors not only become thermal medium and bring heat for the carbide furnace section, and can control the size that enters air capacity from opening for feed.Opening for feed adopts open type or semi-open-type, and discharge port adopts water-lute.
For realizing that the custom-designed production stove of aforesaid method is a vertical heater, form by following parts:
(1) is positioned at the combustion chamber of producing the stove center;
(2) the combustion chamber periphery is the boiler clothing that lagging material is arranged, and temperature control unit is housed in the boiler clothing;
(3) the transferring raw material fibrefelt gives feed roller;
(4) sealed cistern, be used for sealing activation stove section and the washing finished product;
(5) get feed roller, be used for taking out the finished fiber activated carbon;
(6) inlet mouth feeds thus as the water vapor of activator;
(7) extraction hood;
(8) venting port.
When making fibre active carbon, send into raw fibre in the combustion chamber for feed roller continuously, in process through the carbide furnace section, under the effect of the air that enters by the top material inlet, be carbonized, carbonizedfibres moves down to stove, continue to be heated intensification, enter the activation furnace section, under the effect of activators such as water vapour, be activated into and be fibre active carbon, then, fibre active carbon enters the discharge port by water-lute, comes out of the stove continuously.In whole operation processes in combustion chamber, the motion of material is not by transmission rig, but the weight of utilizing material self is implemented in the continuous transmission in the stove, thereby material free shrink or distortion in carbonization process, be not subjected to any interference, not easily broken, guaranteed the integrity of finished product, and can long-term stability produce continuously.
Advantage of the present invention is: 1, produce the formation of thermograde in the stove, mainly the temperature by control activation furnace section realizes that the major part of the carbide furnace section institute heat requirement on combustion chamber top is provided by the waste heat of the activation furnace section of combustion chamber bottom, can save energy; 2 owing to adopt vertical heater, can utilize the water vapor and the hot-fluid that rise from the activation furnace section to control the air capacity that opening for feed enters, play the effect that part is sealed with this, thus opening for feed can we open or half we open, charging and production management are brought convenience; 3, discharge port adopts water-lute, is better than mechanical seal and air seal, and simultaneously, water-lute does not influence discharging; 4, adopt vertical heater, any transporting mechanism need be set in the stove, can guarantee continuous production steady in a long-term.
The present invention is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is the process flow sheet that the fibre active carbon method for continuous production proposes according to the present invention.
Fig. 2 produces the front view of stove for fibre active carbon of the present invention.
Fig. 3 produces the side-view of stove for fibre active carbon of the present invention.
As shown in Figure 1, technological process is:
(1) raw material gives processing: raw fibre is the raw fibre of fiber bundle-like, cloth shape, paper shape or the felt shape made with fibers such as cotton fiber, acrylonitrile fiber, viscose rayon, pitch fibers. At first through comb and parallel cotton fibers prior to spinning, be folded into net and acupuncture, make the raw material felt; Carry out again anti-flame processing, soaked 12 hours in ammonium dihydrogen phosphate (ADP) (or phosphoric acid or ammonium phosphate) solution with raw material input 1.5～2%; Drying dehydration, drying.
(2) carbonization: enter the carbide furnace section after the raw fibre felt after processing, the Temperature Distribution here is about 200 ℃ of porch, and carbonization finally temperature reaches about 500 ℃, and it is 20～50 minutes that whole carbonisation takes, and is advisable with 30 minutes. The raw material felt is through in the carbide furnace section process, is heated under the partial oxidation effect and carries out thermal decomposition, volatilizes organic matter, when carbonization at the end, the content of carbon accounts for about 85%.
(3) activation: carbon fibre continues to be heated intensification along with the movement in stove, enters the activation furnace section of temperature up to 700～1000 ℃; Under the effect of the activators such as water vapour, be activated into and be that fibre active carbon, soak time are 30～60 minutes, produce CO and H in this course2Gas.
(4) washing: the fibre active carbon after will activating washes with water.
(5) arrangement after: the fibre active carbon finished product is through drying dehydration, and is again with steam roller flatiron, leveling, stand-by.
Fig. 2 and Fig. 3 illustrate the structure that the present invention produces stove. Producing stove is that the vertical angle of body of heater is the vertical heater of 45 °～90 ° (being good more than 70 °), and the shape in body of heater cross section can be circle, ellipse or rectangle. The resistant to elevated temperatures stainless steel material of combustion chamber 5 usefulness that is positioned at the stove center is made, and the insulation material of boiler clothing 7 is oxidation aluminum wools. Produce stove and be divided into carbide furnace section 6 and 8 two parts of activation furnace section according to temperature, atmosphere and purposes in the stove. The raw material material inlet is that we opens or partly we opens, and raw fibre felt 3 passes into activator steam through can being admitted to continuously combustion chamber 5 for feed roller 2 by air inlet 9. The CO that in carbonization and activation process, produces, H2、CO
2, organic matter and remaining water vapour emit (need to process) by the exhaust outlet 4 on stove top, hood 1 is equipped with on stove top.
Most preferred embodiment, the upright angle that produces stove is 90 °, and the stove section is 1 * 12m, and the stove height is 5m, and the body of heater material is a stainless steel.The well heater of temperature controllable is housed in the boiler clothing.Raw fibre is the viscose fiber felt, and weight per unit area is 700g/m
2, raw material felt fabric width is 1m.The speed that raw material enters fire door is 2m/h, sends in the stove for from both sides feed roller continuously.The quantity of steam of sending in the stove from both sides, stove bottom steam port is 100l/h.Raw fibre in the decline process, is finished carbonization and reactivation process gradually in stove, then, the fibre active carbon felt falls in the sealed cistern to be washed, and takes out continuously by getting feed roller.The product fabric width is 0.67m, yield 15%, and specific surface area is 1500m
2/ g, iodine adsorption efficiency are more than 90%.Under normal operation, disconnected bar do not occur, can realize safety and stability production.
More than describe in detail a mode and produce the one-time formed situation of making fibre active carbon in the stove continuously, above-mentioned inventive concept is suitable equally for twice moulding.For example, vertical production stove is made up of vertical carbonizing part stove and two independent bodies of heater of vertical activated partial stove, and the upper of furnace body opening for feed is closed or semi-hermetic type, and the bottom discharge port is a water-lute, still can reach the object of the invention.
Claims (2)
1, a kind of fibre active carbon method for continuous production, it comprises: contain felt, anti-flame processing and dehydration, exsiccant raw materials pretreatment, carbonization, activation, washing and finishing process, the water vapor that is introduced into the activation furnace section is except that carrying out the activator effect, remainder water steam enters the carbide furnace section with hot gas flow, opening for feed adopts worn-out open type or half worn-out open type, and discharge port adopts water-lute.
2, the described method of a kind of realization claim 1 and custom-designed production stove is a vertical heater, it is made up of following parts:
(1) is positioned at production stove center inner stove core (5);
(2) combustion chamber (5) periphery is the boiler clothing (7) that lagging material is arranged, and boiler clothing is equipped with temperature control unit in (7);
(3) transferring raw material fibrefelt (3) gives feed roller (2);
(4) sealed cistern (12), be used for sealing activation stove section (8) and the washing finished product;
(5) get feed roller (11), be used for taking out finished fiber activated carbon (10);
(6) inlet mouth (9) feeds thus as the water vapor of activator;
(7) extraction hood (1);
(8) venting port (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93101432A CN1047574C (en) | 1993-02-25 | 1993-02-25 | Continuously producing method for fibre active carbon and producing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93101432A CN1047574C (en) | 1993-02-25 | 1993-02-25 | Continuously producing method for fibre active carbon and producing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1075932A true CN1075932A (en) | 1993-09-08 |
| CN1047574C CN1047574C (en) | 1999-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93101432A Expired - Fee Related CN1047574C (en) | 1993-02-25 | 1993-02-25 | Continuously producing method for fibre active carbon and producing furnace |
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| Country | Link |
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| CN (1) | CN1047574C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104395514A (en) * | 2012-06-27 | 2015-03-04 | 三菱丽阳株式会社 | Carbonization furnace for manufacturing carbon fiber bundles and method for manufacturing carbon fiber bundles |
-
1993
- 1993-02-25 CN CN93101432A patent/CN1047574C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104395514A (en) * | 2012-06-27 | 2015-03-04 | 三菱丽阳株式会社 | Carbonization furnace for manufacturing carbon fiber bundles and method for manufacturing carbon fiber bundles |
| CN104395514B (en) * | 2012-06-27 | 2016-08-24 | 三菱丽阳株式会社 | Carbon fiber bundle manufacture carbide furnace and the manufacture method of carbon fiber bundle |
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| Publication number | Publication date |
|---|---|
| CN1047574C (en) | 1999-12-22 |
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