CN212246231U - Activated carbon production equipment - Google Patents
Activated carbon production equipment Download PDFInfo
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- CN212246231U CN212246231U CN201922480165.4U CN201922480165U CN212246231U CN 212246231 U CN212246231 U CN 212246231U CN 201922480165 U CN201922480165 U CN 201922480165U CN 212246231 U CN212246231 U CN 212246231U
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model relates to an active carbon production facility, including biomass gasification stove, gyration activation furnace, combustion chamber and exhaust-heat steam boiler, biomass gasification stove's gas outlet links to each other with the entry an of gyration activation furnace, and the export b of gyration activation furnace links to each other with the air inlet of combustion chamber, and the gas outlet of combustion chamber links to each other with exhaust-heat steam boiler's air inlet. The utility model has the advantages that: the biomass energy is utilized to provide a heat source for the rotary activation furnace, the raw material consumption of the rotary activation furnace is reduced, the activation temperature is increased, and meanwhile, the combustion chamber is additionally arranged between the rotary activation furnace and the waste heat boiler, so that the temperature of flue gas entering the waste heat steam boiler is greatly increased, the gas production of the waste heat steam boiler is increased by 50%, and the gas production of the waste heat steam boiler is enough to meet the production requirement of the rotary activation furnace without introducing an auxiliary heat source.
Description
Technical Field
The utility model relates to an active carbon production field, concretely relates to active carbon production facility.
Background
In the field of activated carbon production, two important indexes of high-quality activated carbon are high iodine value and high methylene blue. The rotary activation furnace is an activated carbon production device with high yield and low investment, but in the actual production process, because the temperature of the activated carbon with high iodine value produced by the rotary activation furnace needs to reach 850-900 ℃ in the activation section, the production raw materials are mainly carbonized materials, the combustible volatile content of the carbonized materials is reduced by 35-50% through carbonization, and in order to reach the activation temperature, the consumption of the raw materials must be increased, so that the cost is increased.
In addition, 0.2MPa-0.4MPa saturated steam is needed to be used in the production of the rotary activation furnace, a waste heat boiler is directly connected to an outlet at the tail of the rotary activation furnace, the tail gas of the rotary activation furnace is used as a boiler heat source to generate steam, however, combustible gas and small granular carbon in the tail gas generated by the rotary activation furnace are not completely combusted and enter the waste heat boiler, so that the temperature of the tail gas is generally not more than 700 ℃, the output of the boiler is insufficient, the steam generated by the waste heat boiler is not enough to be supplied to the rotary activation furnace, and other steam sources are needed to be introduced to assist the production.
In addition, how to improve the methylene blue value of the activated carbon is also a difficult problem in the practical production of the activated carbon.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an active carbon production facility to overcome not enough among the above-mentioned prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows: an activated carbon production device comprises a biomass gasification furnace, a rotary activation furnace, a combustion chamber and a waste heat steam boiler, wherein an air outlet of the biomass gasification furnace is connected with an inlet a of the rotary activation furnace, an outlet b of the rotary activation furnace is connected with an air inlet of the combustion chamber, and an air outlet of the combustion chamber is connected with an air inlet of the waste heat steam boiler.
The utility model has the advantages that: the biomass energy is utilized to provide a heat source for the rotary activation furnace, the raw material consumption of the rotary activation furnace is reduced, the activation temperature is increased, and meanwhile, the combustion chamber is additionally arranged between the rotary activation furnace and the waste heat boiler, so that the temperature of flue gas entering the waste heat steam boiler is greatly increased, the gas production of the waste heat steam boiler is increased by 50%, and the gas production of the waste heat steam boiler is enough to meet the production requirement of the rotary activation furnace without introducing an auxiliary heat source.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
And the two ends of the air return pipe are respectively connected with an air outlet of the waste heat steam boiler and an inlet a of the rotary activation furnace.
The adoption of the further beneficial effects is as follows: can lead the boiler tail gas into the rotary activation furnace, thereby adjusting CO in the gas of the activation section in the activation furnace2The concentration can be increased by 20 mg/g-50 mg/g in general by improving the methylene blue index of the activated carbon.
Furthermore, a fan is arranged on the return air pipe.
The adoption of the further beneficial effects is as follows: the boiler tail gas is conveniently and quickly introduced into the rotary activation furnace.
And one end of the steam pipe is connected with a steam outlet of the waste heat steam boiler, and the other end of the steam pipe extends into the rotary activation furnace after sequentially passing through an inner cavity of the combustion chamber, an air inlet of the combustion chamber and an outlet b of the rotary activation furnace and is connected with an air distribution system in the rotary activation furnace.
The adoption of the further beneficial effects is as follows: the steam is heated secondarily in the steam pipe through the combustion chamber to generate superheated steam at 120 ℃, the superheated steam is conveyed to an activation section of the rotary activation furnace to be used by the rotary activation furnace, the iodine adsorption value of the activated carbon produced by the activation furnace can reach 1300mg/g at most, and the average value is 1100 mg/g-1250 mg/g.
Furthermore, a plurality of fire-retardant walls are arranged in the inner cavity of the combustion chamber, and each fire-retardant wall is provided with a smoke through hole.
The adoption of the further beneficial effects is as follows: the residence time of the flue gas in the combustion chamber is prolonged, so that unburned combustible components in the flue gas are fully combusted in the combustion chamber, and the temperature is raised to 950-1100 ℃.
And the device further comprises a combustion fan and an injection pipe a, wherein two ends of the injection pipe a are respectively connected with an air outlet of the combustion fan and an inlet a of the rotary activation furnace.
The adoption of the further beneficial effects is as follows: the combustion-supporting fan blows air into the rotary activation furnace through the blowing pipe a, the carbonized material for production of the rotary activation furnace is also put into the activation furnace from the inlet of the activation furnace, the carbonized material is ignited under the combined action of flame sprayed by the burner and the air blown by the combustion-supporting fan, the ignited carbonized material releases heat, and the temperature of the carbonized material in the rotary furnace can be well kept to 800-900 ℃ when the carbonized material reaches an activation section under the combined action of the three, and the temperature is the optimal temperature for activating the activated carbon.
And furthermore, the combustion-supporting air supply device also comprises an injection pipe b, and the two ends of the injection pipe b are respectively connected with an air outlet of a combustion-supporting fan and a combustion-supporting air inlet of the combustion chamber.
The adoption of the further beneficial effects is as follows: air is blown into the combustion chamber to allow the unburned combustible components in the flue gas to be fully combusted in the combustion chamber.
Furthermore, the inner flue of the waste heat steam boiler is built into a broken line labyrinth type.
The adoption of the further beneficial effects is as follows: the retention time of the flue gas in the waste heat steam boiler is prolonged, so that the waste heat steam boiler utilizes the flue gas to generate water vapor with the temperature of 100 ℃.
Further, a cylinder a is arranged at the outlet b of the rotary activation furnace, a cylinder b is arranged at the air inlet of the combustion chamber, one end of the cylinder b, which is far away from the combustion chamber, extends into the cylinder a, the extending depth is 50-80 mm, and the gap between the outer circumferential surface of the cylinder b and the inner circumferential surface of the cylinder a is 10-20 mm; a sealing plate for sealing the gap between the cylinder a and the cylinder b is arranged at the opening of the cylinder a.
The adoption of the further beneficial effects is as follows: flue gas in the rotary activation furnace can completely enter the combustion chamber to prevent leakage.
Drawings
FIG. 1 is a schematic structural view of an activated carbon production facility according to the present invention;
FIG. 2 is a schematic structural view of the rotary activation furnace of the present invention;
FIG. 3 is a schematic structural view of the combustion chamber of the present invention;
FIG. 4 is a schematic structural view of a heat recovery steam boiler of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the biomass activation furnace comprises a biomass gasification furnace 2, a rotary activation furnace 210, inlets a and 220, outlets b and 230, cylinders a and 3, a combustion chamber 310, a fire retardant wall 311, a flue gas through hole 320, a combustion-supporting air inlet 330, cylinders b and 4, a waste heat steam boiler 5, an air return pipe 510, a fan 6, a steam pipe 7, a combustion-supporting fan 8, injection pipes a and 9, injection pipes b and 10 and a sealing plate.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Embodiment 1, as shown in fig. 1, 2, 4, an activated carbon production apparatus includes a biomass gasification furnace 1, a rotary activation furnace 2, a combustion chamber 3, and a waste heat steam boiler 4, wherein an air outlet of the biomass gasification furnace 1 is connected to an inlet a210 of the rotary activation furnace 2, an outlet b220 of the rotary activation furnace 2 is connected to an air inlet of the combustion chamber 3, and an air outlet of the combustion chamber 3 is connected to an air inlet of the waste heat steam boiler 4.
the activated carbon production equipment also comprises a return air pipe 5, and two ends of the return air pipe 5 are respectively connected with an air outlet of the waste heat steam boiler 4 and an inlet a210 of the rotary activation furnace 2.
the return air pipe 5 is provided with a fan 510, the fan 510 is preferably a stainless steel high temperature resistant fan, and the air volume of the fan 510 is adjusted by a frequency converter according to the operation condition of the rotary activation furnace 2.
the activated carbon production equipment further comprises a steam pipe 6, one end of the steam pipe 6 is connected with a steam outlet of the waste heat steam boiler 4, and the other end of the steam pipe 6 sequentially passes through an inner cavity of the combustion chamber 3, an air inlet of the combustion chamber 3 and an outlet b220 of the rotary activation furnace 2, then extends into the rotary activation furnace 2 and is connected with an air distribution system in the rotary activation furnace 2. Normally, the steam outlet of the waste heat steam boiler 4 is provided with a single-channel rotary joint, and the steam pipe 6 is connected with the single-channel rotary joint.
be equipped with many back-fire relief walls 310 in the inner chamber of combustion chamber 3, every back-fire relief wall 310 is last all to be equipped with flue gas through hole 311, and under the ordinary condition, the stifled number of back-fire relief wall 310 that establishes in the inner chamber of combustion chamber 3 can be 1, 2 or 3 stifled, and back-fire relief wall 310 is laid by the firebrick, and flue gas through hole 311 is rectangle or circular port, and 3 tops in the combustion chamber are equipped with explosion-proof mouthful, and 3 inlayers in the combustion chamber are for nai firebrick, and the skin is the insulating.
the activated carbon production equipment further comprises a combustion fan 7, an injection pipe a8 and an injection pipe b9, wherein two ends of the injection pipe a8 are respectively connected with an air outlet of the combustion fan 7 and an inlet a210 of the rotary activation furnace 2, two ends of the injection pipe b9 are respectively connected with an air outlet of the combustion fan 7 and a combustion air inlet 320 of the combustion chamber 3, and usually, a combustion air inlet 320 is arranged between two adjacent fire retardant walls 310 or between the fire retardant walls 310 and the inner wall of the combustion chamber 3 on the combustion chamber 3.
Embodiment 7, as shown in fig. 1, fig. 2, fig. 4, is a further improvement performed on the basis of any one of embodiments 1 to 6, and specifically includes the following steps:
the inner flue of the waste heat steam boiler 4 is built into a broken line labyrinth type. In addition, the bottom parts of the two sides of the waste heat steam boiler 4 are provided with concealed ash cleaning ports.
Embodiment 8, as shown in fig. 1, fig. 2, fig. 4, this embodiment is a further improvement performed on the basis of any one of embodiments 1 to 7, and specifically includes the following steps:
a cylinder a230 is arranged at the outlet b220 of the rotary activation furnace 2, a cylinder b330 is arranged at the air inlet of the combustion chamber 3, one end of the cylinder b330, which is far away from the combustion chamber 3, extends into the cylinder a230, the extending depth is 50-80 mm, and the gap between the outer circumferential surface of the cylinder b330 and the inner circumferential surface of the cylinder a230 is 10-20 mm; the mouth of the cylinder a230 is provided with a sealing plate 10 for sealing the gap between the cylinder a230 and the cylinder b330, the cylinder a230 and the cylinder b330 are preferably steel cylinders, and the sealing plate 10 is a fish scale sealing plate for sealing the gap between the cylinder a230 and the cylinder b330 from the external air entering the combustion chamber 3.
The rotary activation furnace 2 is an internal heating type activation furnace which is supported by two sets of riding wheel rolling ring pairs and driven to rotate by one set of gear and gear ring pair, the activation furnace is a steel cylinder body lined insulating brick layer and a refractory brick layer, the head part of the activation furnace is provided with a centralized open feeding device, a blast, a biomass gas burner and a boiler tail gas return air, and the tail part of the activation furnace is provided with a discharge hole and an outlet b 220.
In each embodiment, biomass gasification stove 1 includes the furnace body and supports the support of furnace body, and the furnace body top is equipped with the feed inlet, and the feed inlet is connected with raw materials conveyer, and the inner chamber from the top down of furnace body is raw materials section, combustion section and cooling zone, is equipped with the gasification reacting chamber of a plurality of parallels in the combustion section, gasification reacting chamber and inner chamber communicate each other, are equipped with in the combustion section to link up to inside combustion chamber with a plurality of gasification reacting chambers, and the combustion chamber has export and is connected with combustion chamber 3 at the lateral wall, is equipped with cooling tube in the cooling zone, and the bottom of furnace body is equipped with stores the carbon storehouse, and the bottom of storing the carbon storehouse.
A production method of activated carbon comprises the following steps:
s100, pyrolyzing biomass through a biomass gasification furnace 1 to generate combustible gas, and conveying the combustible gas into an inlet a210 of a rotary activation furnace 2, wherein the biomass can be straw compressed particles, wood compressed particles, apricot shells and wood chippings, and the combustible gas comprises acid mist, formaldehyde, tar, carbon monoxide, hydrogen, oxygen and methane;
s200, igniting the combustible gas entering the inlet a210 by a biomass gas burner to generate flue gas at 800-950 ℃, blowing and spraying the flue gas into the rotary activation furnace 2 by using a combustion fan 7 and a spray pipe a8 to provide flue gas at 800-950 ℃ for the activation section of the rotary activation furnace 2, throwing the carbonized material into the rotary activation furnace 2 from the inlet a210, igniting the carbonized material under the combined action of flame sprayed by the burner and air blown by the combustion fan 7 and the spray pipe a8, releasing heat from the ignited carbonized material, and keeping the temperature of the carbonized material at 800-900 ℃ when the carbonized material reaches the activation section in the rotary activation furnace 2 under the combined action of the three, wherein the temperature is the optimal temperature for activating the activated carbon;
s300, further combusting the flue gas entering the combustion chamber 3 from the outlet b220 of the rotary activation furnace 2 in the combustion chamber 3, blowing injected air by using a combustion fan 7 and an injection pipe b9, and fully combusting unburned combustible components in the flue gas in the combustion chamber to heat the flue gas to 950-1100 ℃;
s400, leading the flue gas heated to 950-1100 ℃ in the combustion chamber 3 to a waste heat steam boiler 4, exchanging heat between the flue gas and the waste heat steam boiler 4, and generating steam at 100 ℃ after the heat exchange of the waste heat steam boiler 4;
s500, enabling 100 ℃ steam generated by the waste heat steam boiler 4 to be led to a steam pipe 6, enabling the steam to be heated for the second time in the steam pipe 6 through a combustion chamber 3 to generate 120 ℃ superheated steam, and continuing to be led to a gas distribution system in the rotary activation furnace 2, and enabling the superheated steam to be conveyed to the gas distribution system of the rotary activation furnace 2 to be used in an activation section, so that the iodine adsorption value of the activated carbon can be greatly improved to 1300 mg/g;
s600, leading boiler tail gas at the outlet of the waste heat boiler to the inlet of the rotary activation furnace 2 by using a return air pipe 5 and a fan 510, and feeding the boiler tail gas to the inlet section of the activation furnace, wherein the process is used for adjusting CO in the gas at the activation section in the activation furnace2The concentration of the active carbon improves the methylene blue index of the active carbon.
1) The biomass energy is utilized to provide a heat source for the rotary activation furnace, the raw material consumption of the rotary activation furnace is reduced, the activation temperature is increased, and meanwhile, the combustion chamber is additionally arranged between the rotary activation furnace and the waste heat boiler, so that the temperature of flue gas entering the waste heat steam boiler is greatly increased, the gas yield of the waste heat steam boiler is increased by 50%, and the gas yield of the waste heat steam boiler is enough to meet the production requirement of the rotary activation furnace without introducing an auxiliary heat source;
2) the steam is heated secondarily in the steam pipe through the combustion chamber to generate superheated steam at 120 ℃, the superheated steam is conveyed to an activation section of the rotary activation furnace to be used by the rotary activation furnace, the iodine adsorption value of the activated carbon produced by the activation furnace can reach 1300mg/g at most, and the average value is 1100 mg/g-1250 mg/g;
3) the tail gas of the boiler is introduced into the rotary activation furnace, so that CO in the gas of the activation section in the activation furnace is adjusted2The concentration can be increased by 20 mg/g-50 mg/g in general by improving the methylene blue index of the activated carbon.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. The utility model provides an active carbon production facility, its characterized in that, includes biomass gasification stove (1), gyration activation furnace (2), combustion chamber (3) and exhaust-heat steam boiler (4), the gas outlet of biomass gasification stove (1) with the entry a (210) of gyration activation furnace (2) link to each other, the export b (220) of gyration activation furnace (2) with the air inlet of combustion chamber (3) links to each other, the gas outlet of combustion chamber (3) with exhaust-heat steam boiler (4) air inlet links to each other.
2. The activated carbon production equipment according to claim 1, further comprising a return air pipe (5), wherein both ends of the return air pipe (5) are respectively connected with an air outlet of the waste heat steam boiler (4) and an inlet a (210) of the rotary activation furnace (2).
3. The activated carbon production plant according to claim 2, wherein a fan (510) is provided on the return air duct (5).
4. The activated carbon production equipment according to claim 1, further comprising a steam pipe (6), wherein one end of the steam pipe (6) is connected with a steam outlet of the waste heat steam boiler (4), and the other end of the steam pipe (6) extends into the rotary activation furnace (2) through an inner cavity of the combustion chamber (3), an air inlet of the combustion chamber (3) and an outlet b (220) of the rotary activation furnace (2) in sequence and is connected with an air distribution system in the rotary activation furnace (2).
5. The activated carbon production equipment as claimed in claim 1, wherein a plurality of fire-retardant walls (310) are arranged in the inner cavity of the combustion chamber (3), and each fire-retardant wall (310) is provided with a flue gas passing hole (311).
6. The activated carbon production equipment according to any one of claims 1 to 5, further comprising a combustion fan (7) and an injection tube a (8), wherein two ends of the injection tube a (8) are respectively connected with an air outlet of the combustion fan (7) and an inlet a (210) of the rotary activation furnace (2).
7. The activated carbon production equipment according to claim 6, further comprising an injection tube b (9), wherein two ends of the injection tube b (9) are respectively connected with an air outlet of the combustion fan (7) and a combustion air inlet (320) of the combustion chamber (3).
8. An activated carbon production plant according to claim 1, characterized in that the internal flue of the waste heat steam boiler (4) is built as a zigzag labyrinth.
9. The activated carbon production equipment according to claim 1, wherein the outlet b (220) of the rotary activation furnace (2) is provided with a cylinder a (230), the air inlet of the combustion chamber (3) is provided with a cylinder b (330), one end of the cylinder b (330) far away from the combustion chamber (3) extends into the cylinder a (230) to a depth of 50 mm-80 mm, and the gap between the outer circumferential surface of the cylinder b (330) and the inner circumferential surface of the cylinder a (230) is 10 mm-20 mm; and a sealing plate (10) for sealing a gap between the cylinder a (230) and the cylinder b (330) is arranged at the opening of the cylinder a (230).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480165.4U CN212246231U (en) | 2019-12-31 | 2019-12-31 | Activated carbon production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480165.4U CN212246231U (en) | 2019-12-31 | 2019-12-31 | Activated carbon production equipment |
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| Publication Number | Publication Date |
|---|---|
| CN212246231U true CN212246231U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922480165.4U Active CN212246231U (en) | 2019-12-31 | 2019-12-31 | Activated carbon production equipment |
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| CN (1) | CN212246231U (en) |
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2019
- 2019-12-31 CN CN201922480165.4U patent/CN212246231U/en active Active
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