CN114149006A - Carbonization and activation integrated furnace for preparing activated carbon - Google Patents
Carbonization and activation integrated furnace for preparing activated carbon Download PDFInfo
- Publication number
- CN114149006A CN114149006A CN202011644554.7A CN202011644554A CN114149006A CN 114149006 A CN114149006 A CN 114149006A CN 202011644554 A CN202011644554 A CN 202011644554A CN 114149006 A CN114149006 A CN 114149006A
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- section
- carbonization
- self
- activation
- tube
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000003763 carbonization Methods 0.000 title claims abstract description 23
- 230000004913 activation Effects 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003546 flue gas Substances 0.000 claims abstract description 19
- 230000003213 activating effect Effects 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003830 anthracite Substances 0.000 claims abstract description 4
- 239000002802 bituminous coal Substances 0.000 claims abstract description 4
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 4
- 239000003077 lignite Substances 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims abstract description 4
- 235000013162 Cocos nucifera Nutrition 0.000 claims abstract description 3
- 244000060011 Cocos nucifera Species 0.000 claims abstract description 3
- 239000012190 activator Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 238000001994 activation Methods 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000002918 waste heat Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Images
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
- 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
A carbonization and activation integrated furnace for preparing activated carbon consists of a charging section, a carbonization section, an activation section, a cooling section and a discharging section. The raw materials of the invention are one or more of bituminous coal, anthracite, lignite, wood, fruit shells and the like, and coconut shells are preferred. It is characterized in that the carbonization and activation processes are completed in the tubes, and the waste heat of the flue gas is used for producing steam as an activating agent. The method has the advantages of integrated continuous carbonization production of the activated carbon, low energy consumption, compact equipment, small occupied area, low investment, direct local combustion of the self-produced gas, highest efficiency and small secondary pollution.
Description
Technical Field
The invention relates to a carbonization and activation integrated furnace for preparing activated carbon.
Background
The active carbon is an important industrial product and has wide application. At present, the production method of the activated carbon mainly comprises a physical activation method and a chemical activation method. The chemical activation method is ZnCl2Chemical agents such as KOH and the like are used as activating agents to activate carbon-containing substances at the temperature of 500-700 ℃ and under normal pressure to prepare the activated carbon, and the method has serious environmental pollution and is gradually eliminated in recent years; the physical activation method is to carbonize the carbon-containing material under normal pressure, then use the activation medium as the activating agent, under normal pressure, 900-1000 deg.C high temperature conditions the water vapor and carbon take the activating chemical reaction to produce the activated carbon. The activating agent can be one or more of water vapor, carbon dioxide, flue gas or oxygen.
Chinese patent CN02117819.4 discloses a method for preparing activated carbon with one or more of bituminous coal, anthracite, lignite, wood and fruit shell as raw materials. The key points are as follows: the carbonization process is carried out under the pressure condition of 0.2-15Mpa, and the end is 400-650 ℃; the activation process is carried out under the condition of pressurization, the pressure range is 0.2-10Mpa, and the temperature of the activation process is 650-1000 ℃; the activating medium is one or more of water vapor, carbon dioxide, flue gas and oxygen; the ratio of the activating medium to the carbon is 1: 4-20.
The above patent has the disadvantages that the carbonization and activation process is carried out under a pressurized condition, so that the equipment structure is complicated, the cost is high, and the carbonization and activation process is carried out in sequence and is discontinuous.
Chinese patent CN201110265743.8 discloses an external heat rotary carbonization and activation furnace. The furnace body is arranged on the base, the combustion device is arranged at the side part of the furnace body and extends into a chamber of the furnace body, a horizontally arranged rotary drum is arranged in the chamber, and a spiral groove arranged along the radial direction of the rotary drum is arranged on the inner wall of the rotary drum; the front end of the rotary drum extends out of the furnace body and is respectively connected with the feeder and the discharger, the discharger is arranged outside the front end face of the rotary drum, one end of the feeder penetrates through the discharger and extends into the front end of the rotary drum, and the feed inlet at the other end of the feeder is arranged upwards; the tail end of the rotary drum extends out of the furnace body and is connected with a power device.
The defects of the above patent are that two technological processes of carbonization and activation with different temperatures are carried out in the same chamber, the control is difficult, the external heat rotary filling coefficient is low, the production intensity is low, and the carbonization and activation processes are carried out in sequence and are discontinuous.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a carbonization and activation integrated furnace for preparing activated carbon. Consists of a charging section, a carbonization section, an activation section, a cooling section and a discharging section. The raw materials of the invention are one or more of bituminous coal, anthracite, lignite, wood, fruit shells and the like, and coconut shells are preferred. The activating agent is air or oxygen-enriched air plus water vapor. The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a carbonization-activation integrated furnace;
FIG. 2 is a sectional view A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
in the figure: 1 feeder, 2 flat feeder, 3 top cover, 4 shell, 5 heat preservation layer, 6 temperature resistant layer, 7 upper tube plate, 8 tubes, 9 baffle plate, 10 smoke outlet, 11 activator inlet small hole, 12 sight glass, 13 burner, 14 self-produced gas distribution pore plate, 15 activator distribution coil, 15-1 activator distribution coil pipe connecting pipe, 16 self-produced gas outlet small hole, 17 lower tube plate, 18 cooling section shell, 19 multi-ring cooler, 19-1 end seal, 19-2 heat transfer base plate, 19-3 water channel, 19-4 material channel, 19-5 central tube, 19-6 outer side tube partition plate, 19-7 middle spacer, 19-8 outer side tube, 20 discharging section shell, 21 material distribution umbrella, 22 discharger, 23 activator inlet tube, T-5 inlet tube1Carbonization temperature, T2Activation temperature, T3And the outlet flue gas temperature, the outlet flue gas pressure P and the outlet flue gas component C are respectively measured by a sensor.
Detailed Description
The technical measures adopted by the invention are as follows: the gas-generating gas-distributing shell is characterized in that a heat-insulating layer (5), a temperature-resistant layer (6), an upper tube plate (7), a lower tube plate (17), a tube array (8), a baffle plate (9), a gas-generating gas-distributing hole plate (14) and an activating agent distribution coil (15) are arranged in a shell (4), a flue gas outlet (10) is formed in the upper side surface of the shell (4), an activating agent inlet pipe (23) is formed in the middle side surface of the shell, and a burner (13) and a sight glass (12) are formed in the lower side surface of the shell.
The inner end of the flue gas outlet (10) is communicated with the hearth, the outer end of the flue gas outlet is communicated with the steam generator, the flue gas fan is connected with the chimney, and a thermometer T is arranged on the flue gas outlet3A pressure gauge P and a smoke composition sensor C.
The invention further comprises the following steps: the upper tube plate (7) is fixed and the lower tube plate (17) is floating.
The invention further comprises the following steps: the tubes (8) are arranged in a triangle shape, baffle plates (9) are arranged outside the tubes, and the baffle plates (9) are in an arc shape.
The invention further comprises the following steps: activator inlet pores (11) are uniformly distributed at the middle lower part of the tube nest (8), gas outlet pores (14) are uniformly distributed at the lower part, the diameter of each pore is 8-12 mm, and the number of the pores is 16-24.
The invention further comprises the following steps: the middle lower part of the tube nest (8) is evenly provided with activator air inlet small holes (11) and is positioned in an activator distribution coil (15), the activator distribution coils (15) are communicated by an activator distribution coil inter-tube connecting tube (15-1), the activator sent by an activator inlet tube (23) passes through the activator distribution coil (15), and the activator distribution coil inter-tube connecting tube (15-1) is led into the tube nest (8) through the activator air inlet small holes (11).
The invention further comprises the following steps: the outer sides of small gas outlet holes (16) of self-produced gas are uniformly distributed at the lower part of the tube array (8) and are communicated with the hearth, the self-produced gas is led out from the small gas outlet holes and upwards passes through the gas outlet hole plate (14) of the self-produced gas to form a plurality of small torches.
The invention further comprises the following steps: the burner (13) is arranged at the lower side of the furnace, the furnace is heated by using external supply gas at the initial starting stage, the external supply gas is gradually reduced after the self-produced gas exists, and the external supply gas can be closed until the self-produced gas can be self-maintained, and air is continuously blown in to help the self-produced gas to burn.
The invention further comprises the following steps: a sight glass (12) is provided under the furnace to visually observe the combustion condition in the furnace.
The invention further comprises the following steps: the cooling section is arranged below the activation section and comprises a cooling section shell (18) and a multi-ring cooler (19), the multi-ring cooler (19) is formed by fixing two heat transfer substrates (19-2) on a central pipe (19-5) and then coiling the heat transfer substrates into a spiral shape on a coiling bed to form two channels of a water channel (19-3) and a material channel (19-4), the water channel (19-3) is a spiral channel, end seals (19-1) are arranged at two ends of the water channel, a middle spacer bar (19-7) is arranged in the middle of the water channel, the outer side of the spiral channel is communicated with an outer side pipe (19-8), an outer side pipe partition plate (19-6) is arranged in the middle of the outer side pipe (19-8), and the material channel (19-4) is a straight channel parallel to the central pipe (19-5).
The invention further comprises the following steps: a discharging section is arranged below the cooling section. The discharging section comprises a discharging section shell (20), a cloth umbrella (21) and a discharging machine (22).
The invention further comprises the following steps: the carbonization temperature (T) is set in the carbonization section1) The numerical value is controlled between 500 ℃ and 650 ℃, and the activation temperature is set in the activation section(T2) The numerical value is controlled to be 800-950 ℃.
The invention further comprises the following steps: although the outlet flue gas temperature (T)3) It is uncontrolled, but its value is more than 300 deg.C, and can be used as heat source of low-pressure steam, and the produced low-pressure steam can be used as activating agent, so that it is known in the art, and has no need of detailed description.
Advantageous effects
The continuous carbonization integrated production of the activated carbon has the advantages of low energy consumption, compact equipment, small occupied area, low investment, direct on-site combustion of self-produced gas and highest efficiency, and the secondary pollution is low because the flue gas waste heat is used for producing steam as an activating agent.
Claims (2)
1. A carbonization and activation integrated furnace for preparing activated carbon consists of a charging section, a carbonization section, an activation section, a cooling section and a discharging section.
The raw materials of the invention are one or more of bituminous coal, anthracite, lignite, wood and fruit shells, and coconut shells are preferred. The gas-fired boiler is characterized by comprising a shell (4), wherein a heat-insulating layer (5), a temperature-resistant layer (6), an upper tube plate (7), a lower tube plate (17), a tube array (8), a baffle plate (9), a self-generating gas distribution hole plate (14) and an activating agent distribution coil (15) are arranged inside the shell (4), a flue gas outlet (10) is formed in the upper side surface of the shell (4), an activating agent inlet tube (23) is formed in the middle side surface of the shell, a burner (13) and a sight glass (12) are arranged on the lower side surface of the shell, the inner end of the flue gas outlet (10) is communicated with a hearth, the outer end of the flue gas outlet is connected with a steam generator, a flue gas fan and a chimney, and a thermometer T is arranged on the flue gas outlet tube3The device comprises an upper tube plate (7) which is fixed, a lower tube plate (17) which is floating, a plurality of tubes (8) which are arranged in a triangular shape, baffle plates (9) which are arranged outside the tubes, the baffle plates (9) which are arched, activator air inlet small holes (11) which are uniformly distributed at the middle lower part of the tubes (8), self-produced gas outlet small holes (14) which are uniformly distributed at the lower part, the diameter of each small hole is 8-12 mm, the number of the holes is 16-24, the positions of the activator air inlet small holes (11) which are uniformly distributed at the middle lower part of the tubes (8) are positioned in an activator distribution coil (15), the activator distribution coils (15) are communicated with each other through an activator distribution coil (15-1), an activator which is distributed by an activator inlet tube (23) passes through the activator distribution coil (15), and the connecting tube (15-1) between the activator coils is formed by a movable bodyThe agent inlet aperture (11) leads into the tube nest (8). The outer side of a gas outlet hole (16) of the self-produced gas is uniformly distributed at the lower part of the tube array (8) and communicated with a hearth, the self-produced gas is led out and upwards passes through a gas outlet plate (14) of the self-produced gas to form a plurality of small torches, a burner (13) is arranged at the lower side of the furnace, the furnace is heated by the external gas at the initial starting stage, after the self-produced gas exists, the external gas is gradually reduced until the self-produced gas can be self-sustained, the external gas can be closed, air is continuously blown in to help the self-produced gas to be combusted, a sight glass (12) is arranged at the lower side of the furnace to aim at the combustion condition in the furnace, a cooling section is arranged below an activation section, the cooling section comprises a cooling section shell (18) and a multi-ring cooler (19), the multi-ring cooler (19) is formed by fixing two heat transfer base plates (19-2) on a central tube (19-5) and then being rolled into a spiral shape on a rolling bed, two channels of a water channel (19-3) and a material channel (19-4) are formed, the water channel (19-3) is a spiral channel, end seals (19-1) are arranged at two ends of the water channel, a middle spacing strip (19-7) is arranged in the middle of the water channel, the outer side of the spiral channel water channel is communicated with an outer side pipe (19-8), an outer side pipe partition plate (19-6) is arranged in the middle of the outer side pipe (19-8), the material channel (19-4) is a straight channel parallel to a central pipe (19-5), and a discharging section is arranged below a cooling section. The discharging section comprises a discharging section shell (20), a cloth umbrella (21) and a discharging machine (22), and the carbonization section is provided with a carbonization temperature (T)1) The value is controlled at 500-650 deg.C, and the activation temperature (T) is set in the activation section2) The numerical value is controlled to be 800-950 ℃.
2. A carbonization-activation integrated furnace for preparing activated carbon according to claim 1, wherein the discharged high-temperature flue gas is used as a heat source to generate low-pressure steam as an activating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644554.7A CN114149006A (en) | 2020-12-22 | 2020-12-22 | Carbonization and activation integrated furnace for preparing activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644554.7A CN114149006A (en) | 2020-12-22 | 2020-12-22 | Carbonization and activation integrated furnace for preparing activated carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114149006A true CN114149006A (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011644554.7A Pending CN114149006A (en) | 2020-12-22 | 2020-12-22 | Carbonization and activation integrated furnace for preparing activated carbon |
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| Country | Link |
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| CN (1) | CN114149006A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201109713Y (en) * | 2007-11-01 | 2008-09-03 | 孔祥峰 | Environment protection, energy-saving, high effect shell active carbon activation furnace |
| CN201545702U (en) * | 2009-11-12 | 2010-08-11 | 林勇胜 | Disk-type charcoal activation and regeneration multifunctional furnace |
| CN102295282A (en) * | 2011-08-08 | 2011-12-28 | 北京国电富通科技发展有限责任公司 | Carbonization and activation integral furnace |
| CN203487094U (en) * | 2013-03-29 | 2014-03-19 | 宁波互联聚能环保技术有限公司 | Integrated drying, carbonizing and activating equipment for carbon-containing solids |
| CN104789236A (en) * | 2015-04-30 | 2015-07-22 | 吴植仁 | Internal-combustion type biomass particle material drying, carbonizing and activating integrated furnace |
| CN110240914A (en) * | 2019-06-20 | 2019-09-17 | 吴植仁 | A kind of vertical shaft type tubulation retort |
-
2020
- 2020-12-22 CN CN202011644554.7A patent/CN114149006A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201109713Y (en) * | 2007-11-01 | 2008-09-03 | 孔祥峰 | Environment protection, energy-saving, high effect shell active carbon activation furnace |
| CN201545702U (en) * | 2009-11-12 | 2010-08-11 | 林勇胜 | Disk-type charcoal activation and regeneration multifunctional furnace |
| CN102295282A (en) * | 2011-08-08 | 2011-12-28 | 北京国电富通科技发展有限责任公司 | Carbonization and activation integral furnace |
| CN203487094U (en) * | 2013-03-29 | 2014-03-19 | 宁波互联聚能环保技术有限公司 | Integrated drying, carbonizing and activating equipment for carbon-containing solids |
| CN104789236A (en) * | 2015-04-30 | 2015-07-22 | 吴植仁 | Internal-combustion type biomass particle material drying, carbonizing and activating integrated furnace |
| CN110240914A (en) * | 2019-06-20 | 2019-09-17 | 吴植仁 | A kind of vertical shaft type tubulation retort |
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Application publication date: 20220308 |