CN210186858U - Dry desulfurization system suitable for activated carbon industry - Google Patents
Dry desulfurization system suitable for activated carbon industry Download PDFInfo
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- CN210186858U CN210186858U CN201920888834.9U CN201920888834U CN210186858U CN 210186858 U CN210186858 U CN 210186858U CN 201920888834 U CN201920888834 U CN 201920888834U CN 210186858 U CN210186858 U CN 210186858U
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- flue gas
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- storage bin
- desulfurization
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Abstract
The utility model belongs to the technical field of the atmosphere pollution is administered, and a dry desulfurization system suitable for active carbon industry is disclosed, including feed bin 19, desulfurizer input port 18 has been seted up to top one side of feed bin 19, and the bottom of feed bin 19 is connected with unloading pipe 20, and push-pull valve 21 is installed to the exterior wall of unloading pipe 20, installs batcher 22 under the feed bin 19, and the one end that feed bin 19 was kept away from to unloading pipe 20 is connected in batcher 22 top, and the lateral wall of batcher 22 has powder feeding fan 2 through the pipe-line mounting, the utility model discloses compare in traditional two alkali method wet desulfurization processes, novel sodium-based dry desulfurization process need not to carry out the corresponding processing of waste water and wet flue gas, has also avoided because coal tar composition causes the wet tower to corrode in the flue gas, the easy stifled scheduling problem of defroster, simultaneously, the desulfurization accessory substance can be retrieved and be used for, In industries such as glass and the like, the desulfurized clean flue gas can also be used for waste heat utilization.
Description
Technical Field
The utility model belongs to the technical field of the atmosphere pollution is administered, concretely relates to dry desulfurization system suitable for active carbon industry.
Background
The mainstream production process of the coal-based activated carbon in China comprises the following steps: the method comprises the working procedures of crushing and grinding raw coal, molding, carbonizing, activating and processing finished products. In recent years, the activated carbon industry continuously develops a clean production process, and a high-efficiency bag type dust collector is adopted for crushing and grinding powder, so that the emission of particles is reduced; the carbon activation process adopts incineration and waste heat utilization technology, double-alkali wet treatment technology, low-nitrogen combustion or SCR reduction technology to treat the medium-temperature waste gas generated in the carbon activation process.
At present, part of activated carbon enterprises adopt a double-alkali wet desulfurization technology to treat SO in flue gas2The process mainly adopts the form of alkali liquor spraying to wash the flue gas of the carbon activation furnace, although SO2The export discharge concentration of obtaining control, still have many problems, because the composition particularity of charcoal activation furnace flue gas, can contain certain content coal tar steam, this contains the coal tar in the alkali lye that makes after the wet flue gas desulfurization, also can cause simultaneously and spray the layer, the jam of defroster, is difficult to the clearance, refers to the desulfurization current situation of steel industry, and the gas of discharging fume after the wet flue gas desulfurization of two alkalis is wet saturation flue gas, must can produce white cigarette tailing phenomenon, also has the problem that desulfurization waste water is difficult to administer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dry process desulfurization system suitable for active carbon industry to solve traditional technology that proposes in the above-mentioned background art and can make and contain the coal tar in the alkali lye, also can cause the jam that sprays layer, defroster simultaneously, the problem that is difficult to the clearance.
In order to achieve the above object, the utility model provides a following technical scheme: a dry desulfurization system suitable for the activated carbon industry is characterized in that: the device comprises a storage bin, wherein a desulfurizer throwing port is formed in one side of the top end of the storage bin, a blanking pipe is connected to the bottom end of the storage bin, a gate valve is installed on the outer wall of the blanking pipe, a constant feeder is installed right below the storage bin, one end, far away from the storage bin, of the blanking pipe is connected to the top of the constant feeder, a powder feeding fan is installed on the side wall of the constant feeder through a pipeline, the air outlet end of the powder feeding fan is connected with a desulfurizer inlet pipe, a desulfurization reactor is installed on one side of the powder feeding fan, one end, far away from the powder feeding fan, of the desulfurizer inlet pipe is connected to the top end of the desulfurization reactor, the bottom end of the side wall of the desulfurization reactor is connected with a flue gas inlet pipe, the upper end of the side wall of the desulfurization reactor is connected with a first flue gas outlet pipe, a bag type dust collector is arranged on, the bottom of bag collector is connected with first collecting pipe, the one end that bag collector was kept away from to first collecting pipe is installed the storehouse pump, the ash bin is installed to one side of storehouse pump, be connected with the second collecting pipe between the discharge end of storehouse pump and the lateral wall in ash bin, booster fan is installed to one side in ash bin, be connected with second flue gas exit tube between booster fan's convulsions end and bag collector's the lateral wall lower extreme, former chimney is installed to one side of booster fan, booster fan's air-out end passes through pipe connection in former chimney.
Preferably, a pressure release valve is installed at the top end of the storage bin and on one side of the sulfur agent feeding port, and an ash discharge valve is installed on the outer wall of the first collecting pipe.
Preferably, the outer wall of the original chimney is provided with a ladder stand, and the outer wall of the ladder stand is provided with anti-skid grains.
Preferably, the rear surface wall of the desulfurization reactor is provided with a transparent observation window, and the transparent observation window is of a circular structure.
Preferably, the volume of the storage bin is 5-10 m3And the capacity of the storage bin meets the sodium bicarbonate dosage of 3-5 days of normal operation.
Preferably, the desulfurization reactor is a vertical column, and the ratio of the height H of the desulfurization reactor to the diameter D, H/D, is greater than 5.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses compare in traditional two alkaline process wet flue gas desulfurization processes, novel sodium-based dry flue gas desulfurization process need not to carry out the corresponding processing of waste water and wet flue gas, has also avoided because containing the coal tar composition in the flue gas and causing wet tower corruption, the easy stifled scheduling problem of defroster, and simultaneously, the desulfurization accessory substance can be retrieved and be used for trades such as chemical industry, cement, glass, and the clean flue gas after the desulfurization also can carry out waste heat utilization, retrieves and sends to the heat source that the granulation workshop was dried as the carbomorphism furnace charge and use.
(2) The utility model discloses when reducing environmental pollution, also reduced the manufacturing cost of enterprise, application prospect is very extensive, to active carbon manufacturing enterprise, can enough satisfy the environmental protection and discharge the requirement, can practice thrift manufacturing cost again, has good social value and environmental protection benefit, and this can be to the active carbon industrial pollution improvement production influence far away.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of the original chimney of the present invention;
FIG. 3 is a rear view of the desulfurization reactor of the present invention;
in the figure: 1-ladder stand, 2-powder feeding fan, 3-desulfurization reactor, 4-first flue gas outlet pipe, 5-transparent observation window, 6-first collecting pipe, 7-bin pump, 8-ash bin, 9-booster fan, 10-raw chimney, 11-second flue gas outlet pipe, 12-second collecting pipe, 13-ash discharging valve, 14-bag type dust remover, 15-flue gas inlet pipe, 16-desulfurizer inlet pipe, 17-pressure release valve, 18-desulfurizer input port, 19-bin, 20-discharging pipe, 21-gate valve and 22-quantitative feeder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a dry desulfurization system suitable for the activated carbon industry comprises a storage bin 19, one side of the top end of the storage bin 19 is provided with a desulfurizer charging port 18, the bottom end of the storage bin 19 is connected with a blanking pipe 20, the outer surface wall of the blanking pipe 20 is provided with a gate valve 21, a quantitative feeder 22 is arranged under the storage bin 19, one end of the blanking pipe 20, which is far away from the storage bin 19, is connected to the top of the quantitative feeder 22, the side wall of the quantitative feeder 22 is provided with a powder feeding fan 2 through a pipeline, the air outlet end of the powder feeding fan 2 is connected with a desulfurizer inlet pipe 16, one side of the powder feeding fan 2 is provided with a desulfurization reactor 3, one end of the desulfurizer inlet pipe 16, which is far away from the powder feeding fan 2, is connected to the top end of the desulfurization reactor 3, the bottom end of the side wall of the desulfurization reactor 3 is connected with a flue gas inlet pipe 15, the upper, the bag type dust collector 14 mainly comprises an ash bucket, a smoke gas chamber, a gas purifying chamber, an inlet smoke box, an outlet smoke box, a pulse dust cleaning device, an electric control device, a valve and other parts, in order to ensure the dust collection effect, the air speed in the filter bag is controlled to be 0.5-0.8 m/min, smoke gas coming out of the desulfurization reactor 3 enters the bag type dust collector 14 in a side air inlet mode, the whole bag type dust collector 14 adopts an off-line pulse dust cleaning mode, filter materials of the filter bag in the bag type dust collector 14 are made of 100% PPs (polypropylene) film, the air speed in the filter bag is controlled to be 0.5-0.8 m/min, the discharge concentration of particulate matters at an outlet is less than or equal to 30mg/3One end of the first flue gas outlet pipe 4 far away from the desulfurization reactor 3 is connected to the upper end of the side wall of the bag type dust collector 14, the bottom end of the bag type dust collector 14 is connected with a first collecting pipe 6, and the first collecting pipe 6 far away from the bag type dust collector 14Storehouse pump 7 is installed to one end, ash bin 8 is installed to one side of storehouse pump 7, be connected with second collecting pipe 12 between the discharge end of storehouse pump 7 and the lateral wall of ash bin 8, second collecting pipe 12 adopts seamless steel pipe, air supply adopts compressed air, pressure requirement 0.5 ~ 0.7MPa, booster fan 9 is installed to one side of ash bin 8, be connected with second flue gas exit tube 11 between booster fan 9's convulsions end and the lateral wall lower extreme of bag collector 14, former chimney 10 is installed to one side of booster fan 9, pipe connection is passed through in former chimney 10 in booster fan 9's air-out end.
Furthermore, a pressure relief valve 17 is arranged at the top end of the storage bin 19 and at one side of the sulfur agent feeding port 18, and an ash discharge valve 13 is arranged on the outer wall of the first collecting pipe 6.
Furthermore, the outer wall of the original chimney 10 is provided with the ladder stand 1, the outer wall of the ladder stand 1 is provided with anti-skidding lines, the ladder stand 1 is convenient for workers to climb on the higher original chimney 10 for maintenance, meanwhile, the anti-skidding lines are arranged to increase friction force, the workers are prevented from sliding down from the ladder stand 1, and safety is improved.
Further, transparent observation window 5 has been seted up to desulfurization reactor 3's back table wall, and transparent observation window 5 is circular structure, and the staff sees through transparent observation window 5 can observe the inside reaction condition of desulfurization reactor 3 in real time, can in time discover the problem.
Further, the volume of the storage bin 19 is 5-10 m3And the capacity of the stock bin 19 meets the sodium bicarbonate dosage of 3-5 days of normal operation, the stock in the stock bin 19 can maintain the industrial production requirement for several days, the defect of forced parking due to stock shortage is avoided, and the loss is reduced.
Further, the desulfurization reactor 3 is a vertical tower, the ratio H/D of the height H of the tower to the diameter D of the desulfurization reactor 3 is more than 5, flue gas enters the desulfurization reactor 3 from the bottom of the tower and is accelerated by a venturi, and the high-temperature flue gas is fully mixed with the added absorbent and circulating ash in a turbulent section of the purification tower.
The utility model discloses a theory of operation and use flow: when the utility model is used, the flue gas discharged by the carbon activation furnace at 200-250 ℃ is pumped into a desulfurization reactor 3 from a flue gas inlet pipe 15, the desulfurizer sodium bicarbonate is hoisted and conveyed to a storage bin 19 from a desulfurizer input port 18, a PLC control system of the production process starts a quantitative feeder 22 and a powder feeding fan 2 which are controlled by frequency conversion at the lower part of the storage bin 19, then the flue gas is conveyed into the desulfurization reactor 3 through a desulfurizer inlet pipe 16, the flue gas is mixed and reacted with the flue gas in the reactor at a high mass transfer speed to remove acid gas in the flue gas, the flue gas after desulfurization enters a bag type dust collector 14 through a first flue gas outlet pipe 4, dust particles in desulfurization byproducts and the raw flue gas are collected and pneumatically conveyed into an ash bin 8 through a first collecting pipe 6 through a bin pump 7, the flue gas after partial purification is subjected to waste heat recovery and conveyed to a drying workshop section, the carbonization furnace burden is dried, and other clean flue gas is conveyed into a raw chimney 10 through a second flue gas outlet pipe 11 through a booster fan 9 to be discharged, in addition, cat ladder 1 is convenient for the staff and climbs higher former chimney 10 and overhauls, and the seting up of antiskid line can increase frictional force simultaneously, avoids the staff to slide from cat ladder 1, has increased the security.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A dry desulfurization system suitable for the activated carbon industry is characterized in that: comprises a storage bin (19), a desulfurizer input port (18) is formed in one side of the top end of the storage bin (19), a blanking pipe (20) is connected to the bottom end of the storage bin (19), a gate valve (21) is installed on the outer wall of the blanking pipe (20), a quantitative feeder (22) is installed under the storage bin (19), one end, away from the storage bin (19), of the blanking pipe (20) is connected to the top of the quantitative feeder (22), a powder feeding fan (2) is installed on the side wall of the quantitative feeder (22) through a pipeline, a desulfurizer input pipe (16) is connected to the air outlet end of the powder feeding fan (2), a desulfurization reactor (3) is installed on one side of the powder feeding fan (2), one end, away from the powder feeding fan (2), of the desulfurizer input pipe (16) is connected to the top end of the desulfurization reactor (3), and a flue gas input pipe (15) is connected to the bottom end of the, and the upper end of the side wall of the desulfurization reactor (3) is connected with a first flue gas outlet pipe (4), one side of the desulfurization reactor (3) is provided with a bag type dust collector (14), one end of the first flue gas outlet pipe (4), which is far away from the desulfurization reactor (3), is connected with the upper end of the side wall of the bag type dust collector (14), the bottom end of the bag type dust collector (14) is connected with a first collecting pipe (6), one end of the first collecting pipe (6), which is far away from the bag type dust collector (14), is provided with a bin pump (7), one side of the bin pump (7) is provided with an ash bin (8), a second collecting pipe (12) is connected between the discharge end of the bin pump (7) and the side wall of the ash bin (8), one side of the ash bin (8) is provided with a booster fan (9), and a second flue gas outlet pipe (11) is connected between the exhaust end of the booster fan (9) and the lower end of, an original chimney (10) is installed on one side of the booster fan (9), and the air outlet end of the booster fan (9) is connected to the original chimney (10) through a pipeline.
2. The dry desulfurization system for activated carbon industry according to claim 1, characterized in that: a pressure release valve (17) is installed on the top end of the storage bin (19) and on one side of the sulfur agent feeding port (18), and an ash discharge valve (13) is installed on the outer wall of the first collecting pipe (6).
3. The dry desulfurization system for activated carbon industry according to claim 1, characterized in that: the outer surface wall of the original chimney (10) is provided with a ladder (1), and the outer surface wall of the ladder (1) is provided with anti-skid grains.
4. The dry desulfurization system for activated carbon industry according to claim 1, characterized in that: transparent observation window (5) have been seted up to the back surface wall of desulfurization reactor (3), transparent observation window (5) are circular structure.
5. The dry desulfurization system for activated carbon industry according to claim 1, characterized in that: the volume of the storage bin (19) is 5-10 m3And the capacity of the storage bin (19) meets the sodium bicarbonate dosage of 3-5 days of normal operation.
6. The dry desulfurization system for activated carbon industry according to claim 1, characterized in that: the desulfurization reactor (3) is a vertical tower, and the ratio H/D of the height H of the desulfurization reactor (3) to the diameter D is more than 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920888834.9U CN210186858U (en) | 2019-06-13 | 2019-06-13 | Dry desulfurization system suitable for activated carbon industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920888834.9U CN210186858U (en) | 2019-06-13 | 2019-06-13 | Dry desulfurization system suitable for activated carbon industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210186858U true CN210186858U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920888834.9U Expired - Fee Related CN210186858U (en) | 2019-06-13 | 2019-06-13 | Dry desulfurization system suitable for activated carbon industry |
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| CN (1) | CN210186858U (en) |
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- 2019-06-13 CN CN201920888834.9U patent/CN210186858U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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Granted publication date: 20200327 |