CN110117013A - A kind of active carbon preparation system - Google Patents
A kind of active carbon preparation system Download PDFInfo
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- CN110117013A CN110117013A CN201910556632.9A CN201910556632A CN110117013A CN 110117013 A CN110117013 A CN 110117013A CN 201910556632 A CN201910556632 A CN 201910556632A CN 110117013 A CN110117013 A CN 110117013A
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- activated carbon
- vapor
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 title abstract description 19
- 230000004913 activation Effects 0.000 claims abstract description 78
- 238000002485 combustion reaction Methods 0.000 claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 31
- 239000002918 waste heat Substances 0.000 claims abstract description 21
- 239000005539 carbonized material Substances 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000003546 flue gas Substances 0.000 claims description 11
- 239000003034 coal gas Substances 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 230000003009 desulfurizing effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000037452 priming Effects 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- C01B32/39—Apparatus for the preparation thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The embodiment of the invention discloses a kind of active carbon preparation systems, comprising: activation furnace, combustion chamber, mixer and waste heat boiler, the gas exit of the activation furnace is connect with the gas inlet of the combustion chamber, the combustion chamber be heated gas vent, the vapor outlet port of the waste heat boiler passes through the mixer respectively and connect with the activation furnace, it is heated gas and vapor is sufficiently mixed in mixer, the combustion product gases outlet of the combustion chamber is connect with the air inlet of the waste heat boiler.The active carbon preparation system of the embodiment of the present invention, by the way that carbonized stock is carried out priming reaction on the reaction plate with multiple blast caps, the mixed gas of the vapor and heated air that are come out from blast cap, in the pressure effect and the effect of carbonized stock self gravity of the mixed gas, so that carbonized stock is in boiling-like, fluidized state is formed；Vapor and carbonized stock are uniformly mixed and abundant, save vapor, energy conservation, and can produce the active carbon of high-quality.
Description
Technical Field
The embodiment of the invention relates to the technical field of activated carbon production equipment, in particular to an activated carbon preparation system.
Background
Currently, there are various types of furnaces for producing activated carbon, for example: smoldering furnaces, tube furnaces, rotary furnaces, fluidized bed furnaces, flat-bed furnaces, multi-stage furnaces, Steckel furnaces, Schlep furnaces, and the like. Wherein, the Silepu furnace originated in France in the thirties of the twentieth century, and then popularized in the original Soviet Union to produce coal columnar activated carbon in a large scale. The Slapple furnace has certain characteristics: if the saddle brick is arranged in the activation belt, the carbon granules move along the zigzag path, so that the activation effect is enhanced; the regenerator is designed, so that the heat energy utilization is good, and the saturated vapor temperature of the activating agent is high, thereby being beneficial to activation; no heavy maintenance workload; the service life of the furnace is long. However, the defects of the Slapple furnace are two points: the accumulated slag on the activating belt saddle can not be removed, the manufacturing cost is high, the one-time investment is large, and the energy consumption, the cost and the environmental protection property are poor in the process of preparing the active carbon.
The multi-stage furnace, also known as a rake furnace, can produce granular carbon and powdered carbon. Due to the structural characteristics of the multi-stage furnace, the rake teeth on each layer rotate to stir the carbon layer, so that the carbon is turned over for multiple times, the activation can be effectively carried out, and the activation speed is accelerated. Its effective contact area is large, and its layer number is large, so that its production capacity is large. The mechanization and automation can be realized, the rotating shaft, the rake teeth and the arms all need high-temperature-resistant steel materials, the technical transfer cost is added, the investment is large, no certain economic strength can be built, and the production cost is high; in addition, because rake teeth are required to stir the carbon layer in the process of producing the activated carbon, the damage rate of the prepared activated carbon product is high.
The rotary furnace belongs to a flowing bed, is convenient to blow in and shut down, can produce easily activated carbon, consumes certain carbonized materials, has large mechanical maintenance amount, needs to lengthen a furnace cylinder for continuous production, has larger manufacturing cost, and is not environment-friendly in production process.
In summary, in the conventional activated carbon production furnace, the problems of high production cost, high manufacturing cost, poor environmental protection and high energy consumption of the activated carbon in the activated carbon production process are urgently needed to be further improved.
Disclosure of Invention
Therefore, the embodiment of the invention provides an activated carbon preparation system, which is used for solving the problems of high energy consumption, high water vapor consumption, high production cost and poor environmental protection of activated carbon production equipment in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
an activated carbon production system, comprising: the device comprises an activation furnace, a combustion chamber, a mixer and a waste heat boiler, wherein a coal gas outlet of the activation furnace is connected with a coal gas inlet of the combustion chamber, a heated air outlet and a steam outlet of the waste heat boiler are respectively connected with the activation furnace through the mixer, heated gas and water vapor are fully mixed in the mixer, and a combustion flue gas outlet of the combustion chamber is connected with an air inlet of the waste heat boiler;
the bottom of the activation furnace is provided with a reaction plate, the reaction plate is provided with a plurality of air caps, a mixture of water vapor and air in the mixer enters the activation furnace through the air caps to perform activation reaction with the carbonized material on the reaction plate, and the heated air and the water vapor are used as fluidizing mediums to realize the full contact of solid carbonized material particles in the activation furnace and gas mediums.
Preferably, the middle upper part of the activation furnace is provided with a feed inlet, and the feed inlet is connected with a feeding device through a vertical pipe.
Preferably, a discharge hole of the activation furnace is connected with a roller slag cooler.
Preferably, the discharge port is of a conical cylinder-shaped structure, and through holes which can be communicated with the steam outlet of the waste heat boiler are formed in the peripheral side of the conical cylinder.
Preferably, the combustion chamber is horizontally arranged, coal gas from the activation furnace is sprayed into the combustion nozzle from the center of the combustion nozzle, and the circumferential direction of the combustion nozzle is uniformly provided with air inlets with dip angles, so that swirl flame can be formed;
an air-flue gas heat exchanger is arranged at the rear part of the combustion chamber, and air is preheated in the combustion chamber.
Preferably, the blender embeds there is the pipe that supplies preheated air to get into, the tip of pipe is sealed, and week side is equipped with the venthole, and preheated air spouts through the venthole perpendicular to vapor flow direction, realizes the intensive mixing of preheated air and vapor.
Preferably, the waste gas outlet of the waste heat boiler is connected with the desulfurizing tower through a dust removing device.
Preferably, a plurality of temperature measuring devices and pressure measuring devices are arranged on the activation furnace, and a material level monitoring device is further arranged on the activation furnace.
Preferably, the preheated air inlet is connected with a Roots blower, and a check valve is arranged on a pipeline connecting the Roots blower and the combustion chamber.
The embodiment of the invention has the following advantages:
according to the activated carbon preparation system provided by the embodiment of the invention, the carbonized material is subjected to an activation reaction on the reaction plate with a plurality of air caps, the mixed gas of the water vapor and the heated air from the air caps is subjected to the pressure action of the mixed gas and the self gravity of the carbonized material, so that the carbonized material is in a boiling state and forms a fluidized state; the steam and the carbonized material are uniformly and fully mixed, the steam is saved, the energy is saved, and high-quality active carbon can be produced. The oxygen entering the activation furnace is quantified through the Roots blower, the combustible gas generated by the reaction of the water vapor and the carbonized materials fully reacts with the oxygen, and the released energy can keep the furnace temperature of the activation furnace on one hand and supplement the energy required by the activation reaction of the carbonized materials on the other hand, so that the activation reaction is continuously carried out. Meanwhile, various types of activated carbon can be produced, including preparation of high-strength activated carbon and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic structural composition diagram of an activated carbon production system provided in example 1 of the present invention;
in the figure: 1-a feeding device; 2-activating furnace; 3-a combustion chamber; 4, a waste heat boiler; 5-a dust remover; 6-a desulfurizing tower; 7-a draught fan; 8-a chimney; 9-Roots blower; 10-a mixer; 11-roller slag cooler; 12-centrifugal fan.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an activated carbon preparation system, which includes an activation furnace 2, a combustion chamber 3, a mixer 10, and a waste heat boiler 4, wherein a coal gas outlet of the activation furnace 2 is connected to a coal gas inlet of the combustion chamber 3, a heated air outlet of the combustion chamber 3 is connected to the activation furnace 2, and a combustion flue gas outlet of the combustion chamber 3 is connected to an air inlet of the waste heat boiler 4; a steam outlet of the waste heat boiler 4 is connected with the activation furnace 2 through a mixer 10; wherein,a reaction plate is arranged at the bottom of the activation furnace 2, a plurality of air caps are uniformly arranged on the reaction plate, and a material level detection device is also arranged on the inner wall of the activation furnace 2 and used for detecting the adding amount of the carbonized materials in the activation furnace; the gas in the mixer 10 enters the activation furnace through the blast caps and is subjected to activation reaction with the carbonized material which enters the activation furnace and is positioned on the reaction plate, the mixed gas of water vapor and hot air which enters the activation furnace from a plurality of blast caps which are uniformly distributed on the reaction plate is made of refractory materials, the upward pressure of the mixed air and the downward gravity action of the carbonized material, the track of the carbonized material in the activation furnace is more uniform, the carbonized material is fused with the mixed gas, the carbonized material is in a fluidized state, and the purposes of saving water vapor, saving energy and improving the conversion rate are achieved. In the embodiment of the invention, air and water vapor are used as fluidizing mediums, so that the internal solid carbonized material particles can be fully contacted with the mixed gas medium, the heat and mass transfer efficiency is high, and the problems of high water vapor consumption, large heat loss and the like caused by insufficient contact of other activated carbon production devices are solved. The fluidization speed in the activation furnace is controlled to be 0.5-1 m/s, and the mass ratio of the air volume to the carbonized material is 1.5-2 m3The mass ratio of the water vapor to the carbonized material is 0.8-1.2 kg/kg. The ratio of the height of the carbonized material layer in the activation furnace to the inner diameter of the activation furnace is 0.7-1.2, so that the activated carbon yield is improved while effective activation is realized, the power consumption of a fan is reduced, and the escape of fine particles is reduced, wherein the activated carbon yield is 45-55% under the above conditions.
The side wall of the top of the activation furnace 2 is provided with a feed inlet, the feed inlet is connected with the feeding device 1 through a vertical pipe, cold air is introduced into the pipe to serve as conveying media and cooling media, a sealing valve is further installed between conveying pipelines connected with the feed inlet and the feeding device 1, the feeding device 1 comprises a screw feeder, carbon materials in the feeding device 1 are conveyed into the activation furnace 2 through the screw feeder, and finally the carbon materials are stacked on a reaction plate.
The mixer 10 is a mixture of hot air and water vapor, the mixture enters the activation furnace through a plurality of hoods and fully reacts with the high-temperature carbonized material accumulated on the reaction plate, and the carbonized material is in a boiling state under the action of the air flow, so that the activation reaction is more full, the water vapor is saved, and the carbon ablation is reduced. Through setting up the reaction of carrying out the material on the reaction plate, not only can prepare general active carbon, can prepare high strength active carbon moreover.
In the embodiment of the invention, the carbonized material is added into the activation furnace 2 through the feeding device 1 and reacts with hot air and steam introduced from the bottom of the activation furnace, part of carbon in the carbonized material reacts with oxygen in preheated air to release heat, and the temperature of the reaction chamber is maintained at about 900 ℃. And (3) activating the steam and the carbonized material particles in a fluidized state under the high-temperature condition, discharging the prepared activated carbon to a roller slag cooler 11 through an outlet at the bottom of the activation furnace, cooling and discharging.
The activation furnace 2 of the embodiment of the invention is also provided with a plurality of temperature measuring devices, pressure measuring devices and material level measuring devices, and the temperature and the pressure in the activation furnace 2 can be conveniently measured through the pressure detecting devices and the temperature detecting devices arranged at different positions on the activation furnace 2, so that the corresponding conditions of the activated carbon reaction can be controlled, the purpose of real-time monitoring can be achieved, and the controllability of the activated carbon reaction can be increased.
The discharge gate of activation furnace 2 is connected with cylinder cold sediment machine 11, and cylinder cold sediment machine 11 can be fast with the active carbon cooling of preparation in the activation furnace to suitable temperature, and the preferred still installs the picture peg in discharge gate department, through the load of picture peg control active carbon.
High-temperature coal gas generated in the activation furnace is conveyed to the combustion chamber 3 through an insulating pipeline and is combusted with air fed by the centrifugal fan 12 to release heat, the temperature of the combustion chamber 3 is 1000 ℃, the air fed into the activation furnace is preheated to 300 ℃ by a heat exchanger arranged in the combustion chamber 3, and then high-temperature flue gas enters the waste heat boiler 4.
The bottom of activation furnace and 3 by the heated air exit linkage of combustion chamber, combustible gas in the combustion chamber 3 with activation furnace 2 fully burns, the heat that the burning produced heats the air through the heat exchanger, the air after the heating enters into the activation furnace through blender 10, the waste gas of 3 combustions of combustion chamber lets in exhaust-heat boiler 4, obtain vapor to water heating, some entering mixer 10 of vapor, fully mix with the air that is heated in mixer 10, another part passes through baffle and discharge gate UNICOM. Thus, the heated air and the water vapor are fully mixed in the mixer 10, and the mixed gas enters the activation furnace through a plurality of gas caps to react with the carbon material. The air heated in the combustion chamber 3 is fully and uniformly mixed with the water vapor from the waste heat boiler 4 through the mixer 10, and the uniformly mixed gas can better participate in the reaction of the activated carbon, so that the activation reaction efficiency is improved.
In the embodiment of the invention, the combustion chamber 3 is horizontally arranged, coal gas is sprayed from the center of the burner, air inlets with inclination angles are uniformly distributed in the circumferential direction around the burner to form swirl flame, the air-flue gas heat exchanger is arranged at the rear part of the combustion chamber 3 to preheat the air entering the reactor to 300 ℃, and the condensation generated by mixing steam and low-temperature air is avoided while the waste heat recovery is realized. The temperature of the flue gas discharged from the combustion chamber 3 is reduced to 180 ℃ through a waste heat boiler, the flue gas enters a bag-type dust remover 5 to remove dust, and then the flue gas enters a desulfurization system to remove SO2And is sent into a chimney for emission through a draught fan 7. The waste gas outlet of exhaust-heat boiler 4 passes through dust collector and is connected with desulfurizing tower 6, the waste heat air that comes out from the combustion chamber, after exhaust-heat boiler 4's heat recovery, waste gas removes dust through dust collector, the gas after the dust removal is through desulfurizing tower 6 sulphur removal again, thereby smoke and dust in the waste gas has been reduced, sulfur dioxide, the emission of pollutants such as nitrogen oxide, the emission of harmful pollutant in the 2 discharge gas of activation furnace has been reduced, simultaneously through combustion chamber 3 and exhaust-heat boiler 4, make full use of and retrieve energy, green energy-conserving purpose has been reached. The gas outlet department of desulfurizing tower 6 still is connected with draught fan 7, and the waste gas after 6 desulfurates through the desulfurizing tower discharges in the air through draught fan 7 through chimney 8 for the processing of waste gas is more smooth in the desulfurizing tower 6, accelerates the speed to exhaust-gas treatment.
The preheated air inlet is connected with the Roots blower 9, and a check valve is arranged on a preheated air pipeline connecting the Roots blower 9 and the combustion chamber 3. The amount of heated air entering the combustion chamber 3 is controlled by the Roots blower 9, so that the amount of gas entering the activation furnace to participate in the activation reaction can be accurately controlled, and the ablation of carbonized materials is reduced. The amount of heated air entering the combustion chamber 3 is controlled by the Roots blower 9, so that the amount of gas entering the activation furnace and participating in the activated carbon production reaction can be indirectly controlled, the content of oxygen in the reaction gas is accurately controlled, high-quality activated carbon can be produced, homogeneous reaction between the oxygen and combustible gas is carried out, and the released heat can not only keep the furnace temperature, but also provide energy required by the activation reaction between water vapor and carbon.
The exhaust-heat boiler 4 can cool the flue gas to 180 ℃ and generate 0.3MPa saturated steam. Steam and the air after preheating pass through blender 10 and mix, and the top of blender 10 embeds the pipe, and the pipe is sealed, sets up a plurality of ventholes around the pipe, and the preheated air passes through the venthole perpendicular to vapor flow direction and spouts into, realizes the effective mixture of preheated air and vapor.
The combustion chamber 3 is also provided with a centrifugal fan 12 which distributes air for supporting combustion, and air entering from the centrifugal fan 12 and combustible gas carry out combustion reaction, so that the combustible gas coming out of the activation furnace is fully combusted.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. An activated carbon preparation system characterized by comprising: the device comprises an activation furnace, a combustion chamber, a mixer and a waste heat boiler, wherein a coal gas outlet of the activation furnace is connected with a coal gas inlet of the combustion chamber, a heated air outlet of the combustion chamber and a steam outlet of the waste heat boiler are respectively connected with the activation furnace through the mixer, heated gas and water vapor are fully mixed in the mixer, and a combustion flue gas outlet of the combustion chamber is connected with an air inlet of the waste heat boiler;
the bottom of the activation furnace is provided with a reaction plate, the reaction plate is provided with a plurality of air caps, a mixture of water vapor and air in the mixer enters the activation furnace through the air caps to perform activation reaction with the carbonized material on the reaction plate, and the heated air and the water vapor are used as fluidizing mediums to realize the full contact of solid carbonized material particles in the activation furnace and gas mediums.
2. The activated carbon production system of claim 1,
the middle upper part of the activation furnace is provided with a feed inlet, and the feed inlet is connected with a feeding device through a vertical pipe.
3. The activated carbon production system of claim 1,
and a discharge port of the activation furnace is connected with a roller slag cooler.
4. The activated carbon production system of claim 3,
the discharge gate sets up to a toper section of thick bamboo tubular structure, the week side of a toper section of thick bamboo be provided with can with exhaust-heat boiler's vapor outlet intercommunication's through-hole.
5. The activated carbon production system of claim 1,
the combustion chamber is horizontally arranged, coal gas from the activation furnace is sprayed into the combustion nozzle from the center of the combustion nozzle, and the circumferential direction of the combustion nozzle is uniformly provided with air inlets with inclination angles, so that swirl flame can be formed;
an air-smoke heat exchanger is arranged at the rear part of the combustion chamber, and the air entering the activation furnace is preheated in the combustion chamber.
6. The activated carbon production system of claim 1,
the blender embeds there is the pipe that supplies preheated air to get into, the tip of pipe is sealed, and week side is equipped with the venthole, and preheated air spouts into through venthole perpendicular to vapor flow direction, realizes the intensive mixing of preheated air and vapor.
7. The activated carbon production system of claim 1,
and a flue gas outlet of the waste heat boiler is connected with the desulfurizing tower through a dust removal device.
8. The activated carbon production system of claim 1,
the activation furnace is provided with a plurality of temperature measuring devices and pressure measuring devices, and is also provided with a material level monitoring device.
9. The activated carbon production system of claim 1,
the preheating air inlet is connected with a Roots blower, and a check valve is arranged on a pipeline connecting the Roots blower and the combustion chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2019104973455 | 2019-06-10 | ||
| CN201910497345 | 2019-06-10 |
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| CN110117013A true CN110117013A (en) | 2019-08-13 |
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| CN201910556632.9A Pending CN110117013A (en) | 2019-06-10 | 2019-06-25 | A kind of active carbon preparation system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174592A (en) * | 2019-12-20 | 2020-05-19 | 宁夏廷远活性炭有限公司 | Flue gas whitening eliminating system by utilizing self-activated associated gas in activated carbon manufacturing process |
| CN111453728A (en) * | 2020-03-17 | 2020-07-28 | 新疆鑫力环保科技有限公司 | Raw coal carbonization and activation co-production process and system thereof |
| CN112320799A (en) * | 2020-11-05 | 2021-02-05 | 南京建当化工科技有限公司 | Activated carbon activation treatment preparation system |
| CN113247896A (en) * | 2021-04-15 | 2021-08-13 | 中国铝业股份有限公司 | Activated carbon activation device |
| CN113292072A (en) * | 2020-03-11 | 2021-08-24 | 内蒙古浦瑞芬环保科技有限公司 | Air injection device and active carbon production device |
| CN113636553A (en) * | 2021-03-16 | 2021-11-12 | 黄炜 | External heat rotary type high-quality activated carbon efficient energy-saving environment-friendly production device |
| CN114890421A (en) * | 2022-03-21 | 2022-08-12 | 新疆鑫力环保科技有限公司 | Multistage reducing fluidized bed activation furnace and system for preparing activated carbon |
| CN115487794A (en) * | 2022-09-23 | 2022-12-20 | 北京金达威活性炭科技有限公司 | Activated carbon regeneration device using flue gas produced by activated carbon as heat source |
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