CN109126179B - High concentration organic waste gas degree of depth condensation recovery unit - Google Patents
High concentration organic waste gas degree of depth condensation recovery unit Download PDFInfo
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- CN109126179B CN109126179B CN201811043000.4A CN201811043000A CN109126179B CN 109126179 B CN109126179 B CN 109126179B CN 201811043000 A CN201811043000 A CN 201811043000A CN 109126179 B CN109126179 B CN 109126179B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The invention relates to a high-concentration organic waste gas deep condensation recovery device which comprises a storage bin, wherein the top of the storage bin is a purified gas outlet, the upper part in the storage bin is provided with a fluidization adsorption area, the bottom of the fluidization adsorption area is provided with a rotary discharge valve, and a high-temperature desorption area is arranged below the rotary discharge valve; still include the collecting system that admits air, the output of the collecting system that admits air divide into two branch roads, and one way connects gradually low temperature degree of depth condenser and absorption air intake system through the pipeline, absorption air intake system and fluidization adsorption zone intercommunication, another way is through the normal atmospheric temperature cooler of tube coupling, normal atmospheric temperature cooler and passageway intercommunication. The problem that the fixed bed cannot timely dissipate heat and then the carbon bed catches fire or explodes due to heat accumulation in the adsorption process of waste gas is effectively solved, so that the fixed bed runs stably, the recovery effect is good, the safety performance is high, and the emission concentration is low.
Description
Technical Field
The invention relates to the technical field of recovery equipment, in particular to a high-concentration organic waste gas deep condensation recovery device.
Background
Some high concentration organic waste gases are inevitably generated during the production, storage, transportation and sale processes, such as gas stations, docks, petrochemical plants, pharmaceutical factories, etc. The direct discharge of waste gas into the atmosphere not only causes energy waste, but also brings serious environmental pollution and potential safety hazard.
The common organic vapor recovery methods mainly comprise 4 methods, namely an adsorption method, an absorption method, a membrane separation method and a condensation method. The adsorption separation has the advantages that the concentration of the tail gas can be controlled within a small index, but the adsorption heat effect is obvious, the absorption method and the condensation method have low cryogenic temperature, the device investment is overlarge, the membrane separation method is not mature, and the requirement on membrane materials is high.
The currently common method is a condensation method and an adsorption method, but because the fixed bed is difficult to dissipate heat, when adsorbing high-concentration waste gas, an adsorption unit is easy to overheat locally, so that potential safety hazards are caused.
Disclosure of Invention
The applicant provides a high-concentration organic waste gas deep condensation recovery device aiming at the defects in the prior art, so that the problem that the inside of a fixed bed cannot be timely radiated to cause ignition or explosion of a carbon bed due to heat accumulation in the adsorption process of waste gas is effectively solved, the operation is stable, the recovery effect is good, the safety performance is high, and the emission concentration is low.
The technical scheme adopted by the invention is as follows:
the utility model provides a high concentration organic waste gas degree of depth condensation recovery unit, includes the feed bin, the top of feed bin is the export of purified gas, upper portion is provided with the fluidization adsorption zone in the feed bin, rotatory bleeder valve is installed to the bottom of fluidization adsorption zone, rotatory bleeder valve below is provided with high temperature desorption district, and its concrete structure is: the device comprises a rotary discharge valve, a sleeve heater, a filter plate, a fluidized adsorption area, a lifting machine, a fluidized adsorption area and a filter plate, wherein a channel is arranged at an output port of the rotary discharge valve, porous guide plates are arranged on two sides of the inner wall of the channel at intervals in a staggered manner, the sleeve heater is arranged on the outer ring of the channel, the inclined filter plate is arranged in a storage bin below the channel, one end of the filter plate is abutted against one side wall of the storage bin, the other end; a desorption air inlet system is also arranged above the movable discharge opening; still include the collecting system that admits air, the output of the collecting system that admits air divide into two branch roads, and one way connects gradually low temperature degree of depth condenser and absorption air intake system through the pipeline, absorption air intake system and fluidization adsorption zone intercommunication, another way is through the normal atmospheric temperature cooler of tube coupling, normal atmospheric temperature cooler and passageway intercommunication.
The further technical scheme is as follows:
the specific structure of the fluidized adsorption zone is as follows: the air hole sieve plate comprises a plurality of air hole sieve plates which are arranged at intervals, wherein a gas buffer area is arranged at the bottom of each air hole sieve plate, and a rotary discharge valve is connected below the gas buffer area through an inverted cone-shaped structure.
And a first-stage recovery tank is arranged at the bottom of the low-temperature deep condenser.
And a secondary recoverer is arranged at the bottom of the normal-temperature cooler.
The intake air collecting system adopts one or a plurality of wide-mouth gas collecting hoods.
The elevator is of a vertical continuous structure, the conveying capacity is 20-200 kg/h, and the elevator is independent of the outside of fluidized concentration bed equipment.
The porous guide plate is obliquely arranged, and the intersection angle between the porous guide plate and the horizontal plane is 30-60 degrees.
The temperature in the jacket heater is 200-400 ℃, the temperature of the adsorbent is 150-280 ℃, and the outer layer of the jacket heater is provided with a heat-insulating layer.
The included angle between the filter plate and the horizontal plane is 30-40 degrees, small holes are uniformly formed in the filter plate, the aperture ratio is 10% -20%, and the diameter of each small hole is 0.2-0.5 times of that of the adsorbent.
The invention has the following beneficial effects:
the invention has compact and reasonable structure and convenient operation, treats high-concentration organic steam by using the process of condensation and fluidization concentration, recovers substances with higher boiling point in high-concentration organic waste gas by condensation, reduces the gas temperature and improves the adsorption treatment effect of the fluidization tower on organic matters. The desorption gas is returned to the organic waste gas system after being cooled and is discharged after being adsorbed, thereby reducing the emission concentration and improving the recovery efficiency
The invention has stable operation, good recovery effect, high safety performance and low discharge concentration, and is suitable for solvent recovery processing systems in various occasions.
Because the fluidization concentration device is a full mixed flow reactor, the air flow and the bed layer particles are back mixed, all the adsorbent particles are kept in balance with the outlet gas, no 'adsorption wave' exists, and the gas outlet index is relatively stable. The mass and heat transfer rate in the adsorbent is high, the temperature of the bed layer is uniform, and the heat accumulation in the organic waste gas adsorption process can be effectively solved.
The desorption process adopts inert gas, thereby not only reducing the oxygen content in the high-temperature process and improving the safety factor of the organic waste gas fluidization recovery device, but also avoiding bringing moisture into the device and avoiding the influence of the moisture on the adsorbent.
The integrated concentration fluidized bed occupies a small area, and reduces the one-time investment cost and the operation cost which is promoted for many times.
And a vertical continuous elevator is adopted, is independent of the outside of fluidized concentration bed equipment, and is convenient to overhaul and solve the problems of blockage and abrasion in time. The adsorbent abraded in the fluidization process is recovered by adopting a unique storage bin structure, so that secondary entrainment of the adsorbent dust in tail gas is reduced, and meanwhile, the system is not blocked and can stably run for a long time.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 11. an intake air collection system; 21. a low temperature deep condenser; 22. a normal temperature cooler; 23. a primary recovery tank; 24. a secondary recoverer; 31. an adsorption air intake system; 32. a desorption gas inlet system; 41. a fluidized adsorption zone; 42. a high temperature desorption zone; 43. a hoist; 44. a storage bin; 411. a gas buffer region; 412. an air hole sieve plate; 413. a purified gas outlet; 414. rotating the discharge valve; 421. a porous flow guide plate; 422. a jacket heater; 441. a filter plate; 442. an automatic rotating shaft; 443. a movable discharge opening.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the high concentration organic waste gas deep condensation recovery device of this embodiment includes a bin 44, the top of the bin 44 is a purified gas outlet 413, the upper portion is provided with a fluidized adsorption zone 41 in the bin 44, a rotary discharge valve 414 is installed at the bottom of the fluidized adsorption zone 41, a high temperature desorption zone 42 is provided below the rotary discharge valve 414, and its specific structure is: a channel is arranged at the output port of the rotary discharge valve 414, porous guide plates 421 are arranged on two sides of the inner wall of the channel at intervals in a staggered manner, a jacket heater 422 is arranged on the outer ring of the channel, an inclined filter plate 441 is arranged in the bin 44 below the channel, one end of the filter plate 441 is abutted against one side wall of the bin 44, the other end of the filter plate 441 is provided with a movable discharge port 443 through an automatic rotating shaft 442, and a lifter 43 is arranged between the position above the movable discharge port 443 and the top of the fluidized adsorption zone 41; a desorption air inlet system 32 is also arranged above the movable discharge opening 443; the fluidized bed adsorption system further comprises an air inlet collection system 11, the output end of the air inlet collection system 11 is divided into two branches, one branch is sequentially connected with the low-temperature deep condenser 21 and the adsorption air inlet system 31 through a pipeline, the adsorption air inlet system 31 is communicated with the fluidized adsorption zone 41, the other branch is connected with the normal temperature cooler 22 through a pipeline, and the normal temperature cooler 22 is communicated with the channel.
The specific structure of the fluidized adsorption zone 41 is: the air hole sieve plate structure comprises a plurality of air hole sieve plates 412 which are arranged at intervals, wherein a gas buffer area 411 is arranged at the bottom of each air hole sieve plate 412, and a rotary discharging valve 414 is connected below the gas buffer area 411 through an inverted cone-shaped structure.
The bottom of the fluidized adsorption zone 41 is connected with the high-temperature desorption zone 42 through a rotary discharge valve 414, so that up-and-down gas channeling is avoided, the saturated adsorbent can quantitatively enter the high-temperature desorption zone 42 at a constant speed through the rotary discharge valve 414 under the action of gravity, and the discharge speed is consistent with the conveying speed of the hoister 43.
The bottom of the low-temperature deep condenser 21 is provided with a primary recovery tank 23.
The bottom of the normal temperature cooler 22 is provided with a secondary recoverer 24.
Condensation recovery system includes low temperature deep condenser 21, normal atmospheric temperature cooler 22, one-level recovery jar 23, second grade recoverer 24, and low temperature deep condenser 21 connects the collection system 11 that admits air, and normal atmospheric temperature cooling system 22 and absorption air intake system 31 for the deep condensation of the organic matter in admitting air and the desorption gas is retrieved, reduces gas temperature simultaneously, improves adsorption efficiency. The recovered solvent is stored in the primary recovery tank 23. The normal temperature cooler 22 is connected with the high temperature desorption area 42 and the low temperature deep condenser 21 and is used for cooling and recovering desorption gas, and the recovered solvent is stored by the secondary recoverer 24.
The low-temperature deep condenser 21 can cool the gas to-20 to-40 ℃, most organic components can be recovered, the desorption gas is cooled to the normal temperature of 20 to 40 ℃ through the normal-temperature cooler 22, then the desorption gas is mixed into the waste gas for low-temperature deep condensation and recovery, and the non-condensable gas after deep cooling can be adsorbed through the fluidized adsorption area 41, so that the emission is reduced.
The gas conveying system comprises an adsorption gas inlet system 31 and a desorption gas inlet system 32, wherein the adsorption gas inlet system 31 is a fan provided with an electromagnetic flow meter and used for quantitatively conveying the low-temperature mixed gas of the waste gas and the desorption gas to the fluidized adsorption zone 41. The desorption gas inlet system 32 is an inert gas conveyor, and is used for conveying inert gas to the high-temperature desorption zone 42, and the outlet of the inert gas enters the normal-temperature cooler 22.
The fluidized adsorption zone 41 is connected with the adsorption gas inlet system 31 and the high-temperature desorption zone 42, and comprises a gas buffer zone 411, a gas hole sieve plate 412, a purified gas outlet 413 and a rotary discharge valve 414, wherein the waste gas passes through the gas buffer zone 411 and is treated by the adsorbent suspended in the gas hole sieve plate 412, and the clean gas is discharged through the purified gas outlet 413. The clean adsorbent is suspended in the air hole sieve plate 412 under the action of air inlet impact, and after adsorbing certain organic matters, the gravity is increased, and the clean adsorbent is settled to the rotary discharge valve 414 along the gap and enters the high-temperature desorption area 42. The high-temperature desorption zone 42 comprises a porous guide plate 421, a jacket heater 422 and an adsorbent bin 44, the saturated adsorbent enters a high-temperature area along the porous guide plate 421 through the action of gravity for desorption, the temperature of the high-temperature area is controlled by the jacket heater 422 to the whole area, and the adsorbent which is completely desorbed enters the elevator 43 from the top of the bin 44 and enters the fluidized adsorption zone 41 again. The broken sorbent during fluidization enters the silo 44 through the mesh at the top of the silo 44 to avoid clogging the system.
The intake air collection system 11 employs one or several wide-mouth gas-collecting hoods. The exhaust gas from single or multiple discharge points can be continuously collected and stably supplied to the homogeneous fluidized concentration system.
The elevator 43 is of a vertical continuous structure, has the conveying capacity of 20-200 kg/h, and is independent of the outside of the fluidized concentration bed equipment.
The porous guide plate 421 is installed obliquely, and the intersection angle between the porous guide plate 421 and the horizontal plane is 30-60 degrees.
The diameter of the small holes distributed on the porous flow guide plate 421 is 0.6-1 times of the diameter of the adsorbent.
The temperature in the jacket heater 422 is 200-400 ℃, the temperature of the adsorbent is 150-280 ℃, and the outer layer of the jacket heater 422 is provided with a heat-insulating layer.
The included angle between the filter plate 441 and the horizontal plane is 30-40 degrees, the filter plate 441 is uniformly provided with small holes, the aperture ratio is 10-20 percent, and the diameter of the arranged small holes is 0.2-0.5 times of that of the adsorbent.
The thickness of the air hole sieve plate 412 of the fluidized adsorption zone 41 is 2mm, small holes are uniformly formed in the plate, the opening rate is 8% -12%, the diameter of each small hole is 2-4 times of the diameter of the adsorbent, an overflow cofferdam is arranged on the left side, the height of the cofferdam is 10mm, the upper layer and the lower layer are both provided, and the diameter of each hole is 6-10 times of the diameter of the adsorbent. The air speed of the small hole is about 6-7m/s, and the terminal velocity of the adsorbent is twice of that of the particles.
The adsorbent is a special spherical adsorbent, the diameter of the adsorbent is 0.5-1 mm, the hardness of the adsorbent is more than or equal to 96%, the ash content of the adsorbent is less than or equal to 0.05%, the carbon tetrachloride adsorption value of the adsorbent is more than or equal to 80%, the adsorbent has no catalytic reaction, and the service life of the adsorbent is more than or equal to 1 year.
The specific structure and the working process of the invention are as follows:
the organic waste gas is collected through an air inlet collecting system 11, the outlet of the air inlet collecting system 11 is respectively connected with a normal temperature cooler 22 and a low temperature deep condenser 21, and the recovered solvent is collected by a primary recovery tank 23 and a secondary recovery device 24; the low-temperature deep condenser 21 is connected to the fluidized adsorption zone 41 through the adsorption gas inlet system 31, and gas is fully contacted and reacted with the adsorbent through the gas buffer zone 411 and the air hole sieve plate 412 and is discharged to the atmosphere from the purified gas outlet 413.
The saturated adsorbent dead weight grow, under the action of gravity, flows to the rotary discharge valve 414 through the overflow mouth on the pore sieve plate 412, quantitatively flows into the high-temperature desorption area 42, is heated and desorbed by the jacket heater 422 through the porous guide plate 421, flows into the lifting machine 43 from the top of the adsorbent bin 44 after being cleaned, and is cooled and conveyed to the fluidized adsorption area 41 along the conveyor belt for circulating adsorption.
The desorption gas is provided by the desorption gas inlet system 32, enters from the bottom of the high-temperature desorption area 42, passes through the porous guide plate 421, is heated by the jacket heater 422 to take away the pollutants desorbed from the adsorbent, enters the normal-temperature cooler 22 for cooling, is mixed with the organic waste gas, returns to the low-temperature deep condenser 21, is adsorbed by the fluidized adsorption area 41, and is discharged into the atmosphere.
The crushed adsorbent during fluidization enters the silo 44 through a filter plate 441 at the top of the silo 44. When the adsorbent fails, it can be discharged from a movable port at the top of the silo 44 and replaced with new adsorbent.
The following description will be made by taking two cases with large organic waste gas emissions as examples:
the first embodiment is as follows:
discharge outlet of oil tank at certain dock with treatment capacity of 500m3H, oil gas content 125g/m 3;
(II) five wide-mouth gas collecting hoods are adopted for collection, and the treatment capacity is 500m3And h, the deep condenser is designed to be condensed at 40 ℃ below zero, the normal temperature cooler 22 is designed to be condensed at 20 ℃, and the oil gas is condensed into liquid and then recovered. Airflow through bottom blower (520 m)3H) quantitative flow to the fluidized adsorption zone 41.
The fluidized adsorption zone 41 adopts spherical adsorbent as adsorbent, the diameter of the adsorbent is less than or equal to 0.6mm, four layers of air hole sieve plates 412 are arranged, the thickness of the plates is 2mm, small holes are uniformly formed in the plates, the aperture ratio is 10%, the layer height is 300mm, regular triangles are arranged, the diameter of the small holes is 2.4mm, an overflow cofferdam is arranged on the left side, the height of the cofferdam is 10mm, the upper layer and the lower layer are both provided, the aperture diameter is 0.6mm, and the speed of a rotary discharge valve 414 is adjusted to 60 kg/h.
The desorption gas is nitrogen with the flow rate of 20m3Per hour, the jacket heating is 250 ℃, the adsorbent temperature is 190 ℃, the aperture of the porous guide plate 421 is 0.5mm, and four layers are arranged.
(V) in the process, the oil gas concentration is from 125g/m3Reduced to 250mg/m3The ultra-low emission reaches the standard, and the solvent recovery rate is higher than 99 percent.
Example two:
discharge outlet of oil tank of certain gas station, and treatment capacity is 200m3H, oil gas content 100g/m3；
(II) a wide-mouth gas collecting hood is adopted for collection, and the constant air quantity of the fan is 90m3And h, the deep condenser is designed to be condensed at 40 ℃ below zero, the normal-temperature cooler is designed to be condensed at 20 ℃, and the oil gas is condensed to liquid and then recovered. Airflow through the bottom fan (210 m)3H) quantitative flow to the fluidized adsorption zone 41.
The fluidized adsorption zone 41 adopts spherical adsorbent as adsorbent, the diameter of the adsorbent is less than or equal to 0.6mm, three layers of pore sieve plates 412 are arranged, the thickness of the plates is 2mm, pores are uniformly formed in the plates, the aperture ratio is 10%, the layer height is 300mm, regular triangles are arranged, the diameter of the pores is 2.4mm, an overflow cofferdam is arranged on the left side, the height of the cofferdam is 10mm, the upper layer and the lower layer are both provided, the aperture diameter is 0.6mm, and the speed of a rotary discharge valve 414 is adjusted to 25 kg/h.
The desorption gas is nitrogen with the flow rate of 10m3Per hour, the jacket heating is 250 ℃, the adsorbent temperature is 190 ℃, the aperture of the porous guide plate 421 is 0.5mm, and four layers are arranged.
(V) in the process, the oil gas concentration is from 100g/m3Reduced to 400mg/m3The ultra-low emission reaches the standard, and the solvent recovery rate is higher than 99 percent.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (9)
1. The utility model provides a high concentration organic waste gas degree of depth condensation recovery unit which characterized in that: including feed bin (44), the top of feed bin (44) is purified gas outlet (413), upper portion is provided with fluidization adsorption zone (41) in feed bin (44), rotatory bleeder valve (414) are installed to the bottom of fluidization adsorption zone (41), rotatory bleeder valve (414) below is provided with high temperature desorption district (42), and its concrete structure is: a channel is arranged at the output port of the rotary discharge valve (414), porous guide plates (421) are arranged on two sides of the inner wall of the channel at intervals in a staggered manner, a jacket heater (422) is arranged on the outer ring of the channel, an inclined filter plate (441) is arranged in the bin (44) below the channel, one end of the filter plate (441) is abutted against one side wall of the bin (44), a movable discharge port (443) is arranged at the other end of the filter plate (441) through an automatic rotating shaft (442), and a lifter (43) is arranged between the position above the movable discharge port (443) and the top of the fluidized adsorption region (41); a desorption air inlet system (32) is also arranged above the movable discharge opening (443); still include into gas collection system (11), the output of into gas collection system (11) is divided into two branches, and one way connects gradually low temperature degree of depth condenser (21) and adsorbs air intake system (31) through the pipeline, adsorb air intake system (31) and fluidization adsorption zone (41) intercommunication, and another way passes through tube coupling normal temperature cooler (22), normal temperature cooler (22) and passageway intercommunication.
2. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: the fluidized adsorption zone (41) has the specific structure as follows: the air hole sieve plate structure comprises a plurality of air hole sieve plates (412) which are installed at intervals, wherein an air buffer area (411) is arranged at the bottom of each air hole sieve plate (412), and a rotary discharging valve (414) is connected below each air buffer area (411) through an inverted cone-shaped structure.
3. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: and a first-stage recovery tank (23) is arranged at the bottom of the low-temperature deep condenser (21).
4. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: and a secondary recoverer (24) is arranged at the bottom of the normal temperature cooler (22).
5. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: the intake air collection system (11) adopts one or a plurality of wide-mouth gas collecting hoods.
6. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: the elevator (43) is of a vertical continuous structure, and the conveying capacity is 20-200 kg/h.
7. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: the porous guide plate (421) is obliquely arranged, and the intersection angle between the porous guide plate (421) and the horizontal plane is 30-60 degrees.
8. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: the temperature in the jacket heater (422) is 200-400 ℃, the temperature of the adsorbent is 150-280 ℃, and the outer layer of the jacket heater (422) is provided with a heat-insulating layer.
9. The deep condensation recovery device for the high-concentration organic waste gas according to claim 1, characterized in that: the included angle between the filter plate (441) and the horizontal plane is 30-40 degrees, the filter plate (441) is uniformly provided with small holes, the aperture ratio is 10-20 percent, and the diameter of the small holes is 0.2-0.5 times of the diameter of the adsorbent.
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| US5496395A (en) * | 1993-12-28 | 1996-03-05 | Kureha Kagaku Kogyo Kabushiki Kaisha | System for recovering organic solvent in soil |
| CN101850208A (en) * | 2009-04-03 | 2010-10-06 | 杰智环境科技股份有限公司 | Purification and recovery device and method of volatile organic compounds |
| CN104740973A (en) * | 2015-03-16 | 2015-07-01 | 河北科技大学 | Recycling device of organic solvent in high-concentration organic waste gas |
| CN105999993A (en) * | 2016-07-05 | 2016-10-12 | 中国环境科学研究院 | Flue gas demercuration device and method for recycling flue gas mercury through adsorption-desorption self-coupling |
| CN206240271U (en) * | 2016-11-15 | 2017-06-13 | 东莞市佳明环保科技有限公司 | A kind of double-fluidized-bed absorption and desorption apparatus |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496395A (en) * | 1993-12-28 | 1996-03-05 | Kureha Kagaku Kogyo Kabushiki Kaisha | System for recovering organic solvent in soil |
| CN101850208A (en) * | 2009-04-03 | 2010-10-06 | 杰智环境科技股份有限公司 | Purification and recovery device and method of volatile organic compounds |
| CN104740973A (en) * | 2015-03-16 | 2015-07-01 | 河北科技大学 | Recycling device of organic solvent in high-concentration organic waste gas |
| CN105999993A (en) * | 2016-07-05 | 2016-10-12 | 中国环境科学研究院 | Flue gas demercuration device and method for recycling flue gas mercury through adsorption-desorption self-coupling |
| CN206240271U (en) * | 2016-11-15 | 2017-06-13 | 东莞市佳明环保科技有限公司 | A kind of double-fluidized-bed absorption and desorption apparatus |
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