CN115671957B - Multistage merging and separating type progressive saturated adsorption purification system - Google Patents
Multistage merging and separating type progressive saturated adsorption purification system Download PDFInfo
- Publication number
- CN115671957B CN115671957B CN202310000575.2A CN202310000575A CN115671957B CN 115671957 B CN115671957 B CN 115671957B CN 202310000575 A CN202310000575 A CN 202310000575A CN 115671957 B CN115671957 B CN 115671957B
- Authority
- CN
- China
- Prior art keywords
- adsorption
- desorption
- pipeline
- tower
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 608
- 238000000746 purification Methods 0.000 title claims abstract description 41
- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 41
- 230000000750 progressive effect Effects 0.000 title claims abstract description 19
- 238000003795 desorption Methods 0.000 claims abstract description 300
- 239000007789 gas Substances 0.000 claims abstract description 210
- 239000000463 material Substances 0.000 claims abstract description 187
- 239000000843 powder Substances 0.000 claims abstract description 165
- 239000002245 particle Substances 0.000 claims abstract description 125
- 238000000926 separation method Methods 0.000 claims abstract description 52
- 230000008929 regeneration Effects 0.000 claims abstract description 49
- 238000011069 regeneration method Methods 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims description 52
- 239000008187 granular material Substances 0.000 claims description 47
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 41
- 238000012544 monitoring process Methods 0.000 claims description 36
- 238000011084 recovery Methods 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 14
- 230000005494 condensation Effects 0.000 claims description 14
- 230000001172 regenerating effect Effects 0.000 claims description 13
- 230000001276 controlling effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000010815 organic waste Substances 0.000 abstract description 55
- 239000007787 solid Substances 0.000 abstract description 26
- 239000002912 waste gas Substances 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000003463 adsorbent Substances 0.000 description 16
- 238000005267 amalgamation Methods 0.000 description 13
- 238000011161 development Methods 0.000 description 11
- 230000018109 developmental process Effects 0.000 description 11
- 229910001873 dinitrogen Inorganic materials 0.000 description 11
- 239000012855 volatile organic compound Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a multistage merging and separating type progressive saturation adsorption purification system, which is characterized in that organic waste gas and a powder particle adsorption material are uniformly merged and then are sent into an adsorption tower, and the organic waste gas and the powder particle adsorption material form uniform two-fluid merged airflow in the adsorption tower. Organic components in the waste gas fully contact with the powder particle adsorption material, the waste gas is efficiently adsorbed and then passes through the filter cylinder to realize gas-solid separation, and then the gas-solid separation is repeatedly combined, separated and recombined, and then the separation process is carried out, the organic components in the waste gas are sequentially and greatly reduced until the organic components in the waste gas reach the set emission index and then are discharged, then the saturated powder particle adsorption material discharged by the first-stage adsorption unit is sent to a combined and separated dynamic desorption regeneration device, the combined and separated dynamic desorption regeneration device desorbs and regenerates the saturated powder particle adsorption material to form the powder particle adsorption material recovering the adsorption power, and the powder particle adsorption material is sent to the last-stage adsorption unit to realize the cycle production.
Description
Technical Field
The application relates to the technical field of environmental protection, especially, relate to a multistage merge separation type saturation formula adsorption purification system that advances gradually.
Background
Volatile Organic Compounds (VOCs) are a general name for a class of volatile organic compounds, most of which have toxicity and can seriously harm human health. With the continuous development of industry, the higher the content of VOCs in the waste gas generated in industry, if the waste gas is directly discharged into the air, serious pollution to the atmosphere can be caused. Therefore, before the exhaust gas is discharged, VOCs in the exhaust gas needs to be treated so as to reduce the harm of the VOCs to the atmosphere.
At present, the fixed adsorption bed technology is basically applied to the VOCs organic waste gas treatment application market, the basic form of the fixed adsorption bed technology is a fixed bed structure no matter the process route selects active carbon, carbon fiber, adsorption resin, zeolite molecular sieve, honeycomb adsorption rotating wheels and the like, and the defects of the fixed adsorption bed are gradually shown in the long-term use process, so that the popularization and the development of the VOCs organic waste gas treatment technology of the fixed bed structure are influenced. The fixed bed adsorption technology has the following defects: 1) The adsorption efficiency is continuously reduced along with the increase of the service time, and the life cycle is short; 2) The regeneration efficiency of the regeneration and utilization technology is low, and potential safety hazards exist; 3) The secondary pollution problem exists in the adsorption fillers such as waste activated carbon; 4) The shock resistance load variability is poor, the fixed bed adsorption efficiency is unstable, and the standard discharge is unstable; 5) The post-treatment process is mostly thermal oxidation treatment in different forms, and the carbon emission is increased.
Disclosure of Invention
The application provides a gradual saturated formula of multistage merging separation type adsorbs clean system replaces current single static fixed bed with absorption of developments, dynamic desorption regeneration technique and adsorbs and static fixed bed desorption technique, improves exhaust purification efficiency, improves the cyclic utilization rate of adsorbing the material, reduces running cost, extension clean system's life.
In a first aspect, an embodiment of the present application provides a multi-stage combined separation type progressive saturation adsorption purification system, including: multistage merge separation type saturation adsorption purification device and merge separation type dynamic desorption regenerating unit step by step, wherein:
the multistage merging and separating type progressive saturated adsorption purification device comprises a plurality of adsorption units which are arranged in a grading manner, each adsorption unit comprises an adsorption tower, an adsorption air inlet pipeline, an adsorption exhaust pipeline, an adsorption feeding pipeline and an adsorption discharging pipeline, the adsorption tower is a cylinder with a rectangular or circular section, the adsorption air inlet pipeline is connected with the adsorption tower along a first side of the adsorption tower, and the adsorption feeding pipeline is connected with the adsorption tower along a second side of the adsorption tower; the adsorption and exhaust pipeline is connected with the top of the adsorption tower, and the adsorption and discharge pipeline is connected with the bottom of the adsorption tower; the adsorption exhaust pipeline of the front-stage adsorption unit is connected with the adsorption air inlet pipeline of the rear-stage adsorption unit, and the adsorption feed pipeline of the rear-stage adsorption unit is connected with the adsorption exhaust pipeline of the front-stage adsorption unit;
the combined separation type dynamic desorption regeneration device comprises a desorption tower, a desorption feeding pipeline, a desorption discharging pipeline, a desorption air inlet pipeline and a desorption exhaust pipeline, wherein the desorption tower is a cylinder with a rectangular or circular section; the desorption gas inlet pipeline is connected with the desorption tower along the first side of the desorption tower, the desorption feed pipeline is inserted into the desorption gas inlet pipeline, the outlet of the desorption gas inlet pipeline faces the outlet of the desorption gas inlet pipeline, and the inlet of the desorption feed pipeline is connected with the adsorption discharge pipeline of the first-stage adsorption unit; the desorption exhaust pipeline is connected with the top of the desorption tower; one end of the desorption discharge pipeline is connected with the bottom of the desorption tower, and the other end of the desorption discharge pipeline is connected with the adsorption feeding pipeline of the last stage adsorption unit.
Optionally, each adsorption tower includes filter cartridge and collecting hopper, the filter cartridge sets up in order to be used for filtering the gas that the corresponding adsorption tower of discharge below the corresponding absorption exhaust duct, the collecting hopper sets up in the bottom of corresponding adsorption tower in order to be used for assembling the granule that falls in the corresponding adsorption tower.
Optionally, the adsorption unit further includes a gas-material combining and conveying device, the gas-material combining and conveying device includes an adsorption jet fan and an adsorption gas-material combiner, an output end of the adsorption gas-solid combiner is connected to an adsorption feeding pipeline of a next-stage adsorption unit, a first input end of the adsorption gas-solid combiner is connected to an adsorption discharge pipeline corresponding to the adsorption unit, a second input end of the adsorption gas-solid combiner is connected to an output end of the adsorption jet fan corresponding to the adsorption unit, and an input end of the adsorption jet fan is connected to an adsorption discharge pipeline of the next-stage adsorption unit;
the adsorption jet fan is used for conveying the powder particle adsorption material discharged by the adsorption tower corresponding to the adsorption unit into the adsorption tower of the next-stage adsorption unit through the gas discharged by the next-stage adsorption unit;
the adsorption gas-solid combiner is used for combining the powder particle adsorption material discharged by the adsorption tower corresponding to the adsorption unit with the gas conveyed by the adsorption jet fan corresponding to the adsorption unit.
Optionally, the adsorption purification system further includes a first control unit and a first concentration monitoring instrument, the adsorption feed pipeline of the last stage adsorption unit is provided with a first valve, the first concentration monitoring instrument is installed in the adsorption tower of the last stage adsorption unit, and the first control unit is connected with the first concentration monitoring unit and the first valve, wherein:
the first concentration monitoring instrument is used for detecting the concentration of a first organic component of gas in the corresponding adsorption tower and sending the concentration of the first organic component to the first control unit;
the first control unit is used for reducing the opening of the first valve when the concentration of the first organic component is lower than a first preset concentration so as to reduce the supply amount of the powder particle adsorbing material, and increasing the opening of the first valve when the concentration of the organic component is higher than the first preset concentration so as to increase the supply amount of the powder particle adsorbing material.
Optionally, merge separation type developments desorption regenerating unit still includes first desorption jet fan, the exit linkage of the absorption exhaust pipe of first order adsorption unit desorption tower bottom, the input of first desorption jet fan is connected the absorption exhaust pipe of first order adsorption unit, the output of first desorption jet fan is connected the absorption exhaust pipe of first order adsorption unit, wherein:
first desorption jet fan is used for, through first order adsorption unit combustion gas will first order adsorption unit exhaust powder granule adsorption material sends into desorption tower bottom.
Optionally, the combined separation type dynamic desorption regeneration device further comprises a second desorption jet fan, an output end of the second desorption jet fan is connected with the adsorption feeding pipeline and the desorption discharging pipeline of the last stage adsorption unit, and an input end of the second desorption jet fan is connected with the adsorption discharging pipeline of the last stage adsorption unit;
and the second desorption jet fan is used for feeding the powder particle adsorption material discharged by the combined separation type dynamic desorption regeneration device into the adsorption tower of the last stage adsorption unit through the gas discharged by the last stage adsorption unit.
Optionally, merge separation type developments desorption regenerating unit includes heated air circulation heating device, heated air circulation heating device includes heat exchanger, circulation heating pipeline, nitrogen gas supply pipeline, nitrogen gas governing valve and circulation heating fan, wherein:
the input end of the heat exchanger is connected with the top of the desorption tower, the output end of the heat exchanger is connected with the input end of the circulating heating fan, the output end of the circulating heating fan is connected with the inlet of the circulating heating pipeline, the outlet of the circulating heating pipeline is connected with the desorption air inlet pipeline, and the circulating heating pipeline is connected with the nitrogen supplementing pipeline and the nitrogen regulating valve; the nitrogen supplementing pipeline and the nitrogen regulating valve are used for purging nitrogen for the system before the desorption regeneration system is started so as to remove oxygen in the system, and the nitrogen is supplemented in real time in the operation process of the system so as to ensure the absolute safety of the system in a high-temperature operation state.
Optionally, merge separation type developments desorption regenerating unit still includes desorption gas material and merges conveyor, desorption gas material merges conveyor includes third desorption jet fan and desorption gas material merger, the first input of desorption gas material merger is connected the bottom of desorption tower, the second input that desorption gas material merges is connected the output of third desorption jet fan, the output that desorption gas material merges is connected desorption feed tube's import, the input of third desorption jet fan is connected circulation heating pipeline, wherein:
the third desorption jet fan is used for mixing gas discharged by the circulating heating pipeline and the powder particle adsorption material discharged from the bottom of the desorption tower and then sending the mixture into the desorption tower again;
and the desorption gas-solid combiner is used for combining the powder particle adsorption material discharged from the bottom of the desorption tower with the gas conveyed by the third desorption jet fan.
Optionally, merge separation type developments desorption regenerating unit still includes second concentration monitoring instrument, temperature monitoring instrument and second the control unit, the second concentration monitoring instrument with the temperature monitoring instrument is installed in the desorption tower, the second concentration monitoring instrument the temperature monitoring instrument with heated air circulation heating device connects the second the control unit, wherein:
the second concentration monitoring instrument is used for detecting the concentration of a second organic component of the gas in the desorption tower and sending the concentration of the second organic component to the second control unit;
the temperature monitoring instrument is used for detecting the temperature of the gas in the desorption tower and sending the temperature to the second control unit;
the second control unit is used for controlling the circulation heating device to reduce the input power when the concentration of the second organic component is equal to or more than a second preset concentration and the temperature is equal to or more than a first preset temperature; and when the concentration of the second organic component is less than the second preset concentration and the temperature is less than the first preset temperature, controlling the circulating heating device to increase the input power.
Optionally, multistage merge separation type saturation formula that advances that adsorbs clean system still includes condensation recovery unit, desorption exhaust duct connects condensation recovery unit, desorption exhaust duct is provided with the second valve, the second valve is connected the second control unit, wherein:
the second control unit is used for controlling the second valve to be opened so as to enable the gas in the desorption tower to be conveyed to the condensation recovery device through the desorption exhaust pipeline when the concentration of the second organic component is higher than a second preset concentration and the temperature is higher than a first preset temperature;
and the condensation recovery device is used for condensing the gas discharged by the desorption exhaust pipeline into liquid through the multistage condenser and collecting the liquid.
This application is through getting into the adsorption tower with organic waste gas and powder granule adsorbing material along the adsorption tower of opposite side in, organic waste gas and powder granule adsorbing material form even amalgamation air current in the adsorption tower for organic waste gas and powder granule adsorbing material fully contact, area of contact greatly increased, the organic component in the organic waste gas is fully adsorbed to powder granule adsorbing material, improves the adsorption efficiency of organic component. Through setting up a plurality of adsorption element in grades, the used powder granule adsorption material of back level adsorption element with self is carried to preceding stage adsorption element, organic waste gas after preceding stage adsorption element handles self is carried to back level adsorption element, consequently, the fresh degree of the powder granule adsorption material in the past backward adsorption element is higher, adsorption efficiency is stronger, and organic waste gas in the past backward adsorption element passes through multi-stage adsorption after, organic component concentration is lower, be adsorbed by powder granule adsorption material and purify more easily, make organic waste gas by last stage adsorption element adsorption purification back, its organic component concentration is less than emission standard far away, organic waste gas's purifying effect has been improved. Carry to amalgamating separation type developments desorption regenerating unit through the saturated powder particle adsorption material with first order adsorption unit exhaust, amalgamating separation type developments desorption regenerating unit carries out high temperature desorption to saturated powder particle adsorption material, fresh and make its regeneration after become the powder particle adsorption material for resumeing adsorption power, fresh and carry the powder particle adsorption material after regenerating to last order adsorption unit, the recycling of powder particle adsorption material has been realized, avoid powder particle adsorption material to cause secondary pollution to the environment, practice thrift powder particle adsorption material's use cost. In sending into the desorption tower after merging high-temperature gas and powder granule adsorbing material, high-temperature gas and powder granule adsorbing material form even incorporation air current in the desorption tower for high-temperature gas and powder granule adsorbing material fully contact, area of contact greatly increased, organic component rapid evaporation in the powder granule adsorbing material improves organic component's desorption efficiency. The adsorption units at all levels and the combined separation type dynamic desorption regeneration device can realize continuous work, and the whole waste gas purification system has the advantages of low operation and maintenance cost and low regeneration energy consumption, and is convenient for industrialized popularization and use.
Drawings
Fig. 1 is a schematic structural diagram of a multistage combined separation type progressive saturation adsorption purification system provided in the present application;
fig. 2 is a schematic top view of a first adsorption unit provided herein;
in the figure, 10, a first adsorption unit; 11. a first adsorption tower; 12. a first adsorption intake duct; 13. a first adsorption exhaust duct; 14. a first adsorption feed conduit; 141. a first valve; 15. a first adsorption discharge pipe; 16. a first adsorption gas-solid combiner; 17. a first adsorption jet fan; 18. a filter cartridge; 19. a collection hopper; 20. a second adsorption unit; 21. a second adsorption column; 22. a second adsorption gas inlet conduit; 23. a second adsorption exhaust conduit; 24. a second adsorption feed conduit; 25. a second adsorption discharge pipeline; 26. a second adsorption gas-solid combiner; 27. a second adsorption jet fan; 30. a third adsorption unit; 31. a third adsorption column; 32. a third adsorption gas inlet conduit; 33. a third adsorption exhaust conduit; 34. a third adsorption feed line; 35. a third adsorption discharge pipeline; 40. a merging and separating type dynamic desorption regeneration device; 41. a desorption tower; 411. a nitrogen gas supplement pipe; 412. a nitrogen regulating valve; 42. desorbing the gas inlet pipeline; 43. a desorption exhaust pipeline; 431. a second valve; 44. a desorption feed line; 45. a desorption discharge pipeline; 46. a first desorption jet fan; 47. a circulating heating fan; 58. a heat exchanger; 49. a circulating heating pipeline; 51. a desorption gas-material combiner; 52. a third desorption jet fan; 53. a second desorption jet fan; 60. a condensation recovery device.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
As shown in fig. 1-2, the present application provides a gradual saturated formula of multistage merge separation type adsorbs clean system, the effect lies in adsorbing the organic composition of VOCs in the waste gas step by step through the multistage adsorption unit in the gradual saturated formula of multistage merge separation type adsorbs clean system to it is fresh and make it become the powder granule adsorbing material for recovering adsorption power after regenerating to carry out high temperature desorption to saturated powder granule adsorbing material through desorption recovery unit, with the problem of solving current exhaust gas clean system's adsorption capacity low and can not cyclic utilization adsorbing material.
In this embodiment, the multistage combination and separation type progressive saturation adsorption purification system includes a multistage combination and separation type progressive saturation adsorption purification device and a combination and separation type dynamic desorption regeneration device 40, the multistage combination and separation type progressive saturation adsorption purification device includes a plurality of adsorption units arranged in stages, the number of the adsorption units may be 3~5, and referring to fig. 1, the embodiment is described by taking an example that the multistage combination and separation type progressive saturation adsorption purification device includes three adsorption units. The first adsorption unit 10 is the last stage adsorption unit, the third adsorption unit 30 is the first stage adsorption unit, and the second adsorption unit 20 is the previous stage adsorption unit of the first adsorption unit 10, that is, the next stage adsorption unit of the third adsorption unit 30.
In this embodiment, the structure of each adsorption unit is the same, and the first adsorption unit 10 is described as an example in this embodiment. Referring to fig. 1, the first adsorption unit 10 includes a first adsorption tower 11, a first adsorption intake duct 12, a first adsorption exhaust duct 13, a first adsorption feed duct 14, and a first adsorption discharge duct 15, and the first adsorption tower 11 is a cylinder having a rectangular or circular cross-section. The first adsorption air inlet pipeline 12 is connected with the first adsorption tower 11 along the first side of the first adsorption tower 11, and the first adsorption feed pipeline 14 is connected with the first adsorption tower 11 along the second side of the first adsorption tower 11; the first adsorption exhaust pipe 13 is connected to the top of the first adsorption tower 11, and the first adsorption exhaust pipe 15 is connected to the bottom of the first adsorption tower 11. Wherein, the first side and the second side of the first adsorption tower 11 are opposite sides, and the embodiment is described by taking the first adsorption tower 11 as a column with a circular cross section as an example. Referring to fig. 2, the first adsorption air intake duct 12 connects the first adsorption tower 11 along a tangential direction of a first side of the first adsorption tower 11, and the first adsorption feed duct 14 connects the first adsorption tower 11 along a tangential direction of a second side of the first adsorption tower 11. Illustratively, the organic waste gas enters the first adsorption tower 11 from the first adsorption gas inlet pipeline 12, the powder particle adsorbing material enters the first adsorption tower 11 from the first adsorption material conveying pipeline 14, and the organic waste gas and the powder particle adsorbing material oppositely enter the first adsorption tower 11 along two mutually parallel tangents. The organic waste gas is uniformly flowed clockwise along the inner wall under the action of the cylindrical inner wall of the first adsorption tower 11, the powder particle adsorption material is also uniformly flowed clockwise along the inner wall under the action of the cylindrical inner wall of the first adsorption tower 11, and the organic waste gas flowing in the same direction and the powder particle adsorption material are converged to form uniform combined airflow. In even amalgamation air current, powder granule adsorbing material and organic waste gas fully contact, increase the contact surface of powder granule adsorbing material and organic waste gas for organic component in the organic waste gas is adsorbed by the micropore in the powder granule adsorbing material, and organic component converts from the gaseous phase to the solid phase and accomplishes the mass transfer reaction, is driven from organic waste gas and purifies, realizes fully adsorbing the purification to organic component in the organic waste gas, improves the adsorption efficiency to organic component. Further, the organic waste gas flows to the top of the first adsorption tower 11 after being adsorbed and is discharged from the first adsorption exhaust pipeline 13 out of the first adsorption tower 11, and the adsorbed powder particle adsorbing material falls to the bottom of the first adsorption tower 11 after being separated from the adsorbing gas flow and is discharged from the first adsorption exhaust pipeline 15 out of the first adsorption tower 11. It can be understood that, since the structures of the combined progressive saturation adsorption units at each stage are the same, the adsorption operation of the second adsorption unit 20 and the third adsorption unit 30 is the same as that of the first adsorption unit 10, and thus the description thereof is omitted.
In this embodiment, the adsorption exhaust pipeline of the preceding stage adsorption unit is connected to the adsorption intake pipeline of the succeeding stage adsorption unit, and the adsorption feed pipeline of the succeeding stage adsorption unit is connected to the adsorption exhaust pipeline of the preceding stage adsorption unit. Organic waste gas passes through adsorption units at all levels in turn from front to back, and is discharged from the last adsorption unit to form a multi-stage combined and separated type gradual saturated adsorption and purification device, and powder particle adsorption material passes through adsorption units at all levels in turn from back to front, and is discharged from the first adsorption unit to form a multi-stage combined and separated type gradual saturated adsorption and purification device.
Referring to fig. 1, the first adsorption material feeding pipeline 14 is connected to a merging and separating type dynamic desorption regeneration device 40, and the merging and separating type dynamic desorption regeneration device 40 is configured to perform high-temperature desorption on a saturated powder particle adsorption material discharged from the multistage merging and separating type gradual saturated adsorption purification device through a high-temperature airflow to obtain a fresh powder particle adsorption material, and fresh and regenerated powder particle adsorption material is put into the multistage merging and separating type gradual saturated adsorption purification device again to perform adsorption purification on organic waste gas. The first adsorption discharge pipeline 15 is connected with the second adsorption feed pipeline 24 of the second adsorption unit 20, the second adsorption discharge pipeline 25 of the second adsorption unit 20 is connected with the third adsorption feed pipeline 34 of the third adsorption unit 30, and the third adsorption discharge pipeline 35 of the third adsorption unit 30 is connected with the merging and separating type dynamic desorption regeneration device 40. Illustratively, the merging-separating type dynamic desorption regeneration device 40 delivers fresh powder particle adsorbent to the first adsorption tower 11 through the first adsorption feeding pipe 14, and the powder particle adsorbent falls into the bottom of the first adsorption tower 11 after adsorbing and purifying the organic waste gas in the first adsorption tower 11. After the powder particle adsorbing material at the bottom of the first adsorption tower 11 is discharged from the first adsorption tower 11 through the first adsorption discharge pipeline 15, the powder particle adsorbing material enters the second adsorption tower 21 of the second adsorption unit 20 through the second adsorption feeding pipeline 24, adsorbs and purifies the organic waste gas in the second adsorption tower 21, and then falls into the bottom of the second adsorption tower 21. After the second adsorption and discharge pipeline 25 discharges the powder particle adsorption material at the bottom of the second adsorption tower 21 out of the second adsorption tower 21, the powder particle adsorption material enters the third adsorption tower 31 from the third adsorption feeding pipeline 34, and adsorbs and purifies the organic waste gas in the third adsorption tower 31, and then falls into the bottom of the second adsorption tower 21. Fresh powder particle adsorption material is after multistage adsorption unit, and the micropore in the fresh powder particle adsorption filler is occupied by organic component completely, becomes saturated powder particle adsorption material, falls into third adsorption tower 31 bottom after losing adsorption efficiency. The third adsorption and discharge pipeline 35 discharges the saturated powder particle adsorption material at the bottom of the third adsorption tower 31 out of the bottom of the third adsorption tower 31, and feeds the saturated powder particle adsorption material into the dual-cycle combined and separated type dynamic desorption and regeneration device 40, and the combined and separated type dynamic desorption and regeneration device 40 performs high-temperature desorption and freshness on the saturated powder particle adsorption material, so that the saturated powder particle adsorption material is desorbed and regenerated, the powder particle adsorption material with adsorption power is recovered, the powder particle adsorption material is recycled, and the industrial production and operation cost is reduced to the maximum extent.
Referring to fig. 1, the third adsorption intake pipe 32 of the third adsorption unit 30 is connected to an exhaust gas discharge device, the third adsorption exhaust pipe 33 of the third adsorption unit 30 is connected to the second adsorption intake pipe 22 of the second adsorption unit 20, and the second adsorption exhaust pipe 23 of the second adsorption unit 20 is connected to the third adsorption intake pipe 32. Illustratively, the exhaust gas exhaust device uses the third adsorption inlet pipe 32 to send the organic exhaust gas into the third adsorption tower 31, the organic exhaust gas and the powdered adsorption particulate material fed by the third adsorption feeding pipe 34 are close to a saturated powdered adsorption material to form a uniform combined gas flow, a small amount of micropores in the powdered adsorption material continuously adsorb a small amount of organic components of the organic exhaust gas, and a large amount of organic components remain in the adsorbed organic exhaust gas. The organic waste gas is discharged from the third adsorption tower 31 through the third adsorption exhaust pipeline 33 and enters the second adsorption tower 21 through the second adsorption inlet pipeline 22, the organic waste gas and the powder adsorption particle material powder particle adsorption material fed by the second adsorption feeding pipeline 24 form uniform combined airflow again, a large amount of micropores in the powder particle adsorption material continuously adsorb organic components in the organic waste gas, and a small amount of organic components remain in the adsorbed organic waste gas. The organic waste gas is discharged out of the second adsorption tower 21 from the second adsorption exhaust pipeline 23 and enters the first adsorption tower 11 through the first adsorption gas inlet pipeline 12, the organic waste gas and the fresh powder particle adsorption material sent by the first adsorption material conveying pipeline 14 form uniform combined gas flow again, the fresh powder particle adsorption material adsorbs a small amount of organic components remained in the organic waste gas to obtain clean gas, and the clean gas is discharged out of the first adsorption tower 11 from the first adsorption exhaust pipeline 13. As the freshness of the powder particle adsorbing material in the adsorption unit of the later stage is higher, the adsorption capacity is stronger, and the organic components in the organic waste gas are fewer, the concentration of the organic components in the gas discharged by the adsorption unit of the last stage is far lower than the emission standard, and the influence of the organic waste gas on the surrounding environment is eliminated to the maximum extent.
In this embodiment, referring to fig. 1, the combined separation type dynamic desorption regeneration device 40 includes a desorption tower 41, a desorption feed pipeline 44, a desorption discharge pipeline 45, a desorption gas inlet pipeline 42 and a desorption gas outlet pipeline 43, the desorption tower 41 is a cylinder with a rectangular or circular cross section, the desorption gas inlet pipeline 42 is connected to the desorption tower 41 along a first side of the desorption tower 41, the desorption feed pipeline 44 is inserted into the desorption gas inlet pipeline 42 and has an outlet facing an outlet of the desorption gas inlet pipeline 42, and an inlet of the desorption feed pipeline 44 is connected to the third adsorption discharge pipeline 35; the desorption exhaust pipeline 43 is connected with the top of the desorption tower 41; one end of the desorption discharge pipeline 45 is connected with the bottom of the desorption tower 41, and the other end is connected with the first adsorption feed pipeline 14.
In this embodiment, the desorption tower 41 is described as an example of a tower body having a circular cross section. High-temperature gas enters the desorption tower 41 from the desorption gas inlet pipeline 42, the saturated powder particle adsorption material enters the desorption tower 41 from the desorption feed pipeline 44, the high-temperature gas and the saturated powder particle adsorption material are combined in the desorption tower 41 after being combined in the desorption gas inlet pipeline 42, and combined airflow of the high-temperature gas and the saturated powder particle adsorption material flows clockwise and uniformly along the inner wall under the action of the cylindrical inner wall of the desorption tower 41 to form uniform combined airflow. In even amalgamation air current, saturated powder granule adsorbing material fully contacts with high-temperature gas, increase the continuous even amalgamation of saturated powder granule adsorbing material and high-temperature gas, the separation, the recirculation is in whole desorption regeneration process, it is even to merge, the contact is abundant, the mass transfer is fast, shorten desorption time greatly, effectively improve desorption regeneration efficiency, organic component among the saturated powder granule adsorbing material is the evaporation of being heated fast, desorb from the powder granule adsorbing material, make the quick desorption of saturated powder granule adsorbing material become fresh powder granule adsorbing material, the desorption efficiency of powder granule adsorbing material has been improved. Further, after the saturated powder particle adsorption material is desorbed into a fresh powder particle adsorption material, the fresh powder particle adsorption material is separated from the desorption gas flow and falls into the bottom of the desorption tower 41, and the desorption gas flow is discharged from the desorption discharge pipeline 45 to the desorption tower 41. The fresh powder particle adsorbing material is discharged from the desorption tower 41 and conveyed to the first adsorption unit 10, and enters the first adsorption tower 11 through the first adsorption feeding pipeline 14 to start a new round of adsorption purification.
In one embodiment, referring to fig. 1, each adsorption tower includes a filter cartridge 18 disposed below the corresponding adsorption exhaust pipe for filtering the gas discharged from the corresponding adsorption tower, and a collecting hopper 19 disposed at the bottom of the corresponding adsorption tower for collecting particles falling within the corresponding adsorption tower. For example, referring to fig. 1, the clean gas after adsorption treatment in the first adsorption tower 11 may adhere to the powder particle adsorbent, when the clean gas passes through the filter cartridge 18 disposed in the first adsorption tower 11, the filter cartridge 18 filters the powder particle adsorbent to which the clean gas adheres, and the filtered clean gas is discharged from the first adsorption exhaust duct 13, so as to ensure the freshness of the exhaust gas. The powder particle adsorbing material is blocked in the first adsorption tower 11 by the filter cartridge 18, and after being separated from the adsorption air flow, the powder particle adsorbing material is settled in the aggregate bin 19 at the bottom of the first adsorption tower 11 and is guided to the first adsorption discharge pipeline 15 by the aggregate bin 19, so that the discharge speed of the powder particle adsorbing material is increased, the powder particle adsorbing material is timely conveyed to the second adsorption tower 21, the powder particle adsorbing material is prevented from being accumulated at the bottom of the first adsorption tower 11, and the purification adsorption efficiency of the second adsorption unit 20 on the organic waste gas is influenced.
In an embodiment, each adsorption unit except the first stage adsorption unit further comprises a gas-material merging and conveying device, and the gas-material merging and conveying device can convey the unadsorbed saturated filler separated from the corresponding adsorption unit to the next stage adsorption unit through wind power. Illustratively, the gas-material combining and conveying device comprises an adsorption jet fan and an adsorption gas-material combiner, the output end of the adsorption gas-solid combiner is connected with the adsorption feeding pipeline of the next-stage adsorption unit, the input end of the adsorption gas-solid combiner is connected with the adsorption discharge pipeline of the corresponding adsorption unit and the output end of the adsorption jet fan, and the input end of the adsorption jet fan is connected with the adsorption discharge pipeline of the next-stage adsorption unit. The adsorption jet fan is used for conveying the powder particle adsorption material discharged by the adsorption tower corresponding to the adsorption unit into the adsorption tower of the next-stage adsorption unit through the gas discharged by the next-stage adsorption unit; the adsorption gas-solid combiner is used for combining the powder particle adsorption material discharged by the adsorption tower corresponding to the adsorption unit with the gas conveyed by the adsorption jet fan corresponding to the adsorption unit.
Referring to fig. 1, an input end of a first adsorption jet flow fan 17 of a first adsorption unit 10 is connected with a second adsorption exhaust pipeline 23, an input end of a first adsorption gas-solid combiner 16 is connected with a first adsorption exhaust pipeline 15 and an output end of the first adsorption jet flow fan 17, and an output end of the first adsorption gas-solid combiner 16 is connected with a second adsorption feeding pipeline 24. The first adsorption jet fan 17 is used for fully combining the powder particle adsorption material discharged from the first adsorption tower 11 and the gas in the first adsorption gas-solid combiner 16 by means of the gas discharged from the second adsorption exhaust pipeline 23, and then sending the combined gas into the second adsorption tower 21. Similarly, the input end of the second adsorption jet fan 27 of the second adsorption unit 20 is connected to the third adsorption exhaust pipeline 33, the input end of the second adsorption gas-solid combiner 26 is connected to the output end of the second adsorption jet fan 27 and the second adsorption exhaust pipeline 25, and the output end of the second adsorption gas-solid combiner 26 is connected to the third adsorption feeding pipeline 34. The second adsorption jet fan 27 is configured to, with the aid of the gas discharged from the third adsorption exhaust duct 33, sufficiently combine the powder particle adsorption material discharged from the second adsorption tower 21 with the gas in the second gas-solid combiner, and then send the combined gas into the third adsorption tower 31. In this embodiment, powder granule adsorbing material is under gaseous and the effect that corresponds the absorption conveying pipeline, in the tangential direction entering adsorption tower along the adsorption tower to form even amalgamation air current with organic waste gas in the adsorption tower, guarantee that organic waste gas and powder granule adsorbing material in the adsorption tower remain the mobile state of abundant amalgamation throughout, make powder granule adsorbing material and organic waste gas fully contact, abundant amalgamation improves gas-solid mass transfer efficiency, stabilize whole adsorption efficiency at the high level. The first adsorption gas-solid combiner 16 and the second adsorption gas-solid combiner 26 can fully combine gas and the powder particle adsorption material to form gas-solid combination, so that the gas-solid combination formed by the powder particle adsorption material and the gas meets the organic waste gas to quickly form uniform combined airflow, the powder particle adsorption material and the organic waste gas quickly enter a combined flowing state, and the adsorption efficiency is improved.
In an embodiment, the multistage merging and separating type progressive saturation adsorption purification device further includes a first control unit and a first concentration monitoring instrument, the adsorption feed pipeline of the last stage adsorption unit is provided with a first valve 141, the first concentration monitoring instrument is installed in the adsorption tower of the last stage adsorption unit, and the first control unit is connected with the first concentration monitoring unit and the first valve 141. The first concentration monitoring instrument is used for detecting the concentration of a first organic component of gas in the corresponding adsorption tower and sending the concentration of the first organic component to the first control unit; the first control unit is configured to reduce the opening of the first valve 141 when the first organic component concentration is lower than or equal to a first predetermined concentration, so as to reduce the supply amount of the powder particle adsorbent, and increase the opening of the first valve 141 when the first organic component concentration is higher than the first predetermined concentration, so as to increase the supply amount of the powder particle adsorbent. Illustratively, when the concentration of the organic component in the gas in the first adsorption tower 11 is higher than the first preset concentration, it indicates that the adsorption capacity of the powder particle adsorbent in the first adsorption tower 11 is not enough to completely adsorb the organic component in the purge gas. Therefore, the first control unit controls the opening of the first valve 141 to increase, so as to add more fresh powder particle adsorbing materials into the first adsorption tower 11, increase the adsorption capacity of the powder particle adsorbing materials in the first adsorption tower 11, and ensure the purification effect of the organic waste gas. In contrast, when the concentration of the organic component in the gas in the first adsorption tower 11 is lower than the first preset concentration, it indicates that the adsorption capacity of the powder particle adsorbent in the first adsorption tower 11 is sufficient to completely adsorb the organic component in the purge gas. Therefore, the first control unit controls the opening of the first valve 141 to be decreased, so as to decrease the supply amount of the powder particle adsorbent in the first adsorption tower 11, save the powder particle adsorbent, and appropriately reduce the adsorption cost.
In an embodiment, referring to fig. 1, the combined separation type dynamic desorption regeneration device 40 further includes a first desorption jet fan 46, an outlet of the adsorption discharge pipeline of the first stage adsorption unit is connected to the bottom of the desorption tower 41, an input end of the first desorption jet fan 46 is connected to the adsorption discharge pipeline of the first stage adsorption unit, an output end of the first desorption jet fan 46 is connected to the adsorption discharge pipeline of the first stage adsorption unit, wherein: the first desorption jet fan 46 is used for feeding the powder particle adsorbing material discharged from the first-stage adsorption unit into the bottom of the desorption tower 41 through the gas discharged from the first-stage adsorption unit. Illustratively, the first desorption jet fan 46 feeds the saturated powdered particle adsorbent discharged from the third adsorption tower 31 to the bottom of the desorption tower 41 by means of the gas discharged from the third adsorption exhaust pipe 33.
In an embodiment, referring to fig. 1, the combined separation type dynamic desorption regeneration device 40 further includes a second desorption jet fan 53, an output end of the second desorption jet fan 53 is connected to the first adsorption feed pipeline 14 and the desorption discharge pipeline 45, and an input end of the second desorption jet fan 53 is connected to the adsorption discharge pipeline of the last stage adsorption unit. The second desorption jet fan 53 is configured to discharge the gas from the last stage of adsorption unit, and to feed the powder particle adsorbent discharged from the combined separation type dynamic desorption regeneration apparatus 40 into the adsorption tower of the last stage of adsorption unit. Illustratively, the second desorption jet fan 53 feeds the fresh powdered particle adsorbent discharged from the desorption tower 41 into the first adsorption tower 11 through the first adsorption feed pipe 14 by means of the clean gas discharged from the first adsorption exhaust pipe 13. Fresh powder particle adsorbing material gets into in first adsorption tower 11 along the tangential direction of first adsorption tower 11 under the effect of clean gas and first adsorption feed pipeline 14 to form even amalgamation air current with organic waste gas in first adsorption tower 11, guarantee that organic waste gas in first adsorption tower 11 and powder particle adsorbing material remain the flow state of abundant amalgamation all the time, make powder particle adsorbing material and organic waste gas fully contact, abundant amalgamation, improve gas-solid mass transfer efficiency, stabilize whole adsorption efficiency at the high level.
In an embodiment, referring to fig. 1, the combined separation type dynamic desorption regeneration device 40 further includes a hot air circulation heating device, and the hot air circulation heating device includes a heat exchanger 58, a circulation heating pipeline 49, and a circulation heating fan 47. Wherein, the top of desorption tower 41 is connected to the input of heat exchanger 58, and the input of circulation heating fan 47 is connected to the output of heat exchanger 58, and the import of circulation heating pipe 49 is connected to the output of circulation heating fan 47, and desorption admission line 42 is connected to the export of circulation heating pipe 49. The desorption tower 41 is also provided therein with a filter cartridge 18. Illustratively, the circulation heating fan 47 can draw the high-temperature gas in the desorption tower 41 out of the top of the desorption tower 41, the powdered granular adsorbent material adhered to the high-temperature gas is blocked in the desorption tower 41 by the filter cartridge 18, and the high-temperature gas is heated by the heat exchanger 58 and then sent into the desorption tower 41 by the circulation heating fan 47 through the circulation heating pipeline 49 and the desorption gas inlet pipeline 42. The temperature of the high-temperature gas can be increased through the heat exchanger 58, and the desorption tower 41 is continuously kept in a high-temperature state, so that the powder particle adsorbing material is fully combined with the high-temperature gas in a high-temperature environment, and is quickly desorbed into a fresh powder particle adsorbing material, and the desorption regeneration efficiency of the powder particle adsorbing material is improved. And the high-temperature gas is repeatedly extracted and sent into the desorption tower 41, so that the merging turbulence in the desorption tower 41 is strengthened, the mass transfer effect is improved, the regeneration time of the powder particle adsorption material is shortened, and the operating cost of the merging and separating type dynamic desorption regeneration device 40 is reduced.
In this embodiment, referring to fig. 1, the combined separation type dynamic desorption regeneration device 40 further includes a desorption gas material combined conveying device, the desorption gas material combined conveying device includes a desorption gas material combined conveying device including a third desorption jet fan 52 and a desorption gas material combiner 51, the bottom of the desorption tower 41 and the output end of the third desorption jet fan 52 are connected to the input end of the desorption gas material combiner 51, the input end of the desorption gas material combined output end is connected to the inlet of the desorption feed pipeline, and the input end of the third desorption jet fan 52 is connected to the circulation heating pipeline 49. The third desorption jet fan 52 is configured to combine the gas discharged from the circulation heating pipeline 49 with the powder particle adsorbing material discharged from the bottom of the desorption tower 41, and send the combined gas into the desorption tower 41 again; the desorption gas-material combiner 51 is configured to combine the powder particle adsorbing material discharged from the bottom of the desorption tower 41 with the gas delivered by the third desorption jet fan 52. Illustratively, a collecting hopper 19 is also arranged in the desorption tower 41, and after being blocked by the filter cartridge 18, the powder particle adsorbing material falls into the collecting hopper 19 at the bottom of the desorption tower 41 after being separated from the desorption gas flow, and is guided to the bottom of the desorption tower 41 by the collecting hopper 19. The second desorption jet fan 53 feeds the powder particle adsorbing material at the bottom of the desorption tower 41 into the desorption gas material combiner 51 by means of the high-temperature gas pumped from the circulating heating pipeline 49, the powder particle adsorbing material and the high-temperature gas are fully combined in the desorption gas material combiner 51 and then enter the desorption feeding pipeline 44, and the combined gas flow discharged from the desorption feeding pipeline 44 and the gas in the desorption gas inlet pipeline 42 are combined and then enter the desorption tower 41. The combined airflow of the high-temperature gas and the powder particle adsorption material forms uniform combined airflow in the desorption tower 41, so that the high-temperature gas and the powder particle adsorption material in the desorption tower 41 are always kept in a fully combined flowing state, the powder particle adsorption material and the high-temperature gas are fully contacted and fully combined, the evaporation speed of organic waste gas in the powder particle adsorption material is increased, and the whole desorption efficiency is stabilized at a high level. The desorption gas-material combiner 51 can fully combine the high-temperature gas with the powder particle adsorbing material to form gas-solid combination, so that the gas-solid combination formed by the powder particle adsorbing material and the high-temperature gas meets the high-temperature gas in the desorption gas inlet pipeline 42 and then quickly forms uniform combined gas flow in the desorption tower 41, the powder particle adsorbing material and the high-temperature gas quickly enter a combined flowing state, and the adsorption efficiency is improved. Similarly, the powder particle adsorbing material is repeatedly extracted and sent into the desorption tower 41, so that the merging turbulence in the desorption tower 41 is strengthened, the mass transfer effect is improved, the regeneration time of the powder particle adsorbing material is shortened, and the operating cost of the merging and separating type dynamic desorption regeneration device 40 is reduced.
In this embodiment, referring to fig. 1, the heated air circulation heating device further includes a nitrogen gas supplement pipeline 411 and a nitrogen gas regulating valve 412, the circulation heating pipeline 49 is connected to the nitrogen gas supplement pipeline 411 and the nitrogen gas regulating valve 412, the nitrogen gas supplement pipeline 411 and the nitrogen gas regulating valve 412 are used for purging nitrogen gas for the desorption regeneration system before the desorption regeneration system is started, so as to remove oxygen in the system, and during the operation of the system, the nitrogen gas is supplemented immediately, so as to ensure the absolute safety of the system in a high-temperature operation state.
In an embodiment, referring to fig. 1, the combined separation type dynamic desorption regeneration device 40 further includes a second concentration monitoring instrument, a temperature monitoring instrument, and a second control unit. The second concentration monitoring instrument and the temperature monitoring instrument are installed in the desorption tower 41, and the second concentration monitoring instrument, the temperature monitoring instrument and the heated air circulation heating device are connected with the second control unit. The second concentration monitoring instrument is used for detecting the concentration of a second organic component in the gas in the desorption tower 41 and sending the concentration of the second organic component to the second control unit; the temperature monitoring instrument is used for detecting the temperature of the gas in the desorption tower 41 and sending the temperature to the second control unit; the second control unit is used for controlling the circulating heating device to reduce the input power when the concentration of the second organic component is equal to or more than a second preset concentration and the temperature is equal to or more than a first preset temperature; and controlling the circulating heating device to increase the input power when the concentration of the second organic component is less than the second preset concentration and the temperature is less than the first preset temperature. Illustratively, when the concentration of the second organic component is greater than or equal to the second preset concentration and the temperature is greater than or equal to the first preset temperature, it indicates that the powdered particle adsorbent in the desorption tower 41 has been completely desorbed and regenerated, and the adsorbed power of the powdered particle adsorbent is recovered, at this time, the power of the circulation heating fan 47 and the heat exchanger 58 in the circulation heating device can be reduced, so as to reduce the power consumption of the combined separation type dynamic desorption regeneration device 40. When the second organic component concentration is less than the second preset concentration and the temperature is less than the first preset temperature, it indicates that the powder particle adsorbing material in the desorption tower 41 is not completely desorbed and fresh, so that the powder particle adsorbing material is desorbed and regenerated, and the powder particle adsorbing power is recovered, and at this time, the circulation rate and the temperature of the high-temperature gas can be increased by increasing the power of the circulation heating fan 47 and the heat exchanger 58 in the circulation heating device, so that the desorption capacity of the desorption tower 41 is enhanced, and the desorption efficiency is improved.
In an embodiment, referring to fig. 1, the multistage merging and separating type gradual saturated adsorption purification system further includes a condensation recovery device 60, the desorption exhaust pipeline 43 is connected to the condensation recovery device 60, the desorption exhaust pipeline 43 is provided with a second valve 431, and the second valve 431 is connected to the second control unit. Wherein, the second control unit is configured to, when the concentration of the second organic component is higher than the third preset concentration and the temperature is higher than the second preset temperature, control the second valve 431 to open so as to enable the gas in the desorption tower 41 to be delivered to the condensation recovery device 60 through the desorption exhaust pipeline 43; and a condensation recovery device 60 for condensing the gas discharged from the desorption gas discharge pipe 43 into a liquid by the multistage condenser and collecting the liquid. Illustratively, when the powder adsorbed particles in the desorption tower 41 are completely desorbed and fresh, so that the powder adsorbed particles are desorbed and regenerated, and the adsorption power is recovered, the second valve 431 is controlled to open by the second control unit, and the high-temperature gas is discharged from the desorption tower 41 through the desorption exhaust pipeline 43 and enters the condensation recovery device 60. The high temperature gas contains a large amount of organic components which are condensed into a liquid by a multi-stage condenser, and the liquid is collected in a storage tank for recovery. When the powder particle adsorbing material in the desorption tower 41 is not completely desorbed and fresh, so that the powder particle adsorbing material is desorbed and regenerated, and the powder adsorbed particles with adsorption power are recovered, the second valve 431 is controlled to be closed by the second control unit, so that the high-temperature gas in the desorption tower 41 continues to perform high-temperature desorption on the powder adsorbed particles.
To sum up, the gradual saturated formula adsorption purification system of multistage merging separation type that this application provided, through with organic waste gas and powder granule adsorbing material along the adsorption tower entering adsorption tower of opposite side in, organic waste gas and powder granule adsorbing material form even amalgamation air current in the adsorption tower for organic waste gas and powder granule adsorbing material fully contact, area of contact greatly increased, organic composition in the powder granule adsorbing material fully adsorbs organic waste gas, improve organic composition's adsorption efficiency. Through setting up a plurality of adsorption element in grades, the used powder granule adsorption material of back level adsorption element with self is carried to preceding stage adsorption element, organic waste gas after preceding stage adsorption element handles self is carried to back level adsorption element, consequently, the fresh degree of the powder granule adsorption material in the past backward adsorption element is higher, adsorption efficiency is stronger, and organic waste gas in the past backward adsorption element passes through multi-stage adsorption after, organic component concentration is lower, be adsorbed by powder granule adsorption material and purify more easily, make organic waste gas by last stage adsorption element adsorption purification back, its organic component concentration is less than emission standard far away, organic waste gas's purifying effect has been improved. Carry to amalgamation separation type developments desorption regenerating unit 40 through the saturated powder granule adsorption material with first order adsorption unit exhaust, amalgamation separation type developments desorption regenerating unit 40 carries out high temperature desorption to saturated powder granule adsorption material, it is fresh and make its regeneration after become the powder granule adsorption material for resumeing adsorption power, it is fresh and carry the powder granule adsorption material after regenerating to last one-level adsorption unit, the recycling of powder granule adsorption material has been realized, avoid powder granule adsorption material to cause secondary pollution to the environment, practice thrift powder granule adsorption material's use cost. In sending into desorption tower 41 after merging high-temperature gas and powder granule adsorbing material, high-temperature gas and powder granule adsorbing material form even incorporation air current in desorption tower 41 for high-temperature gas and powder granule adsorbing material fully contact, area of contact greatly increased, organic component rapid evaporation in the powder granule adsorbing material improves organic component's desorption efficiency. The adsorption units at all levels and the combined separation type dynamic desorption regeneration device 40 can realize continuous work, and the whole waste gas purification system has the advantages of low operation and maintenance cost and low regeneration energy consumption, and is convenient for industrialized popularization and use.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. Those skilled in the art will appreciate that the present application is not limited to the particular embodiments described herein, but is capable of many obvious modifications, rearrangements and substitutions without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a gradual saturation formula of multistage merge separation type adsorbs clean system which characterized in that includes: multistage merge separation type saturation adsorption purification device and merge separation type dynamic desorption regenerating unit step by step, wherein:
the multistage merging and separating type progressive saturated adsorption purification device comprises a plurality of adsorption units which are arranged in a grading manner, each adsorption unit comprises an adsorption tower, an adsorption air inlet pipeline, an adsorption exhaust pipeline, an adsorption feeding pipeline and an adsorption discharging pipeline, the adsorption tower is a cylinder with a rectangular or circular section, the adsorption air inlet pipeline is connected with the adsorption tower along the tangential direction of a first side of the adsorption tower, the adsorption feeding pipeline is connected with the adsorption tower along the tangential direction of a second side of the adsorption tower, and the first side and the second side are opposite sides; the adsorption and exhaust pipeline is connected with the top of the adsorption tower, and the adsorption and discharge pipeline is connected with the bottom of the adsorption tower; the adsorption exhaust pipeline of the front-stage adsorption unit is connected with the adsorption air inlet pipeline of the rear-stage adsorption unit, and the adsorption feed pipeline of the rear-stage adsorption unit is connected with the adsorption exhaust pipeline of the front-stage adsorption unit;
the combined separation type dynamic desorption regeneration device comprises a desorption tower, a desorption feeding pipeline, a desorption discharging pipeline, a desorption air inlet pipeline and a desorption exhaust pipeline, wherein the desorption tower is a cylinder with a rectangular or circular section; the desorption gas inlet pipeline is connected with the desorption tower along the first side of the desorption tower, the desorption feed pipeline is inserted into the desorption gas inlet pipeline, the outlet of the desorption gas inlet pipeline faces the outlet of the desorption gas inlet pipeline, and the inlet of the desorption feed pipeline is connected with the adsorption discharge pipeline of the first-stage adsorption unit; the desorption exhaust pipeline is connected with the top of the desorption tower; one end of the desorption discharge pipeline is connected with the bottom of the desorption tower, and the other end of the desorption discharge pipeline is connected with the adsorption feeding pipeline of the last stage of adsorption unit.
2. The progressive saturation adsorption purification system of multistage combination separation type according to claim 1, wherein each of said adsorption towers includes a filter cartridge disposed below the corresponding adsorption exhaust pipe for filtering the gas discharged out of the corresponding adsorption tower, and a collecting hopper disposed at the bottom of the corresponding adsorption tower for collecting the particles falling down in the corresponding adsorption tower.
3. The multistage merging and separating progressive saturated adsorption purification system according to claim 1, wherein the adsorption unit further comprises a gas material merging and conveying device, the gas material merging and conveying device comprises an adsorption jet fan and an adsorption gas material merger, an output end of the adsorption gas material merger is connected with an adsorption feeding pipeline of a next-stage adsorption unit, an input end of the adsorption gas material merger is connected with an adsorption discharge pipeline of a corresponding adsorption unit and an output end of the adsorption jet fan, and an input end of the adsorption jet fan is connected with an adsorption discharge pipeline of the next-stage adsorption unit;
the adsorption jet fan is used for conveying the powder particle adsorption material discharged by the adsorption tower corresponding to the adsorption unit into the adsorption tower of the next-stage adsorption unit through the gas discharged by the next-stage adsorption unit;
the adsorption gas material merger is used for merging the powder particle adsorption material discharged by the adsorption tower corresponding to the adsorption unit with the gas conveyed by the adsorption jet fan corresponding to the adsorption unit.
4. The multi-stage combined separation type progressive saturation adsorption purification system according to claim 1, further comprising a first control unit and a first concentration monitoring instrument, wherein the adsorption feed pipe of the last stage adsorption unit is provided with a first valve, the first concentration monitoring instrument is installed in the adsorption tower of the last stage adsorption unit, and the first control unit is connected with the first concentration monitoring instrument and the first valve, wherein:
the first concentration monitoring instrument is used for detecting the concentration of a first organic component of gas in the corresponding adsorption tower and sending the concentration of the first organic component to the first control unit;
the first control unit is used for reducing the opening of the first valve when the concentration of the first organic component is lower than a first preset concentration so as to reduce the supply amount of the powder particle adsorbing material, and increasing the opening of the first valve when the concentration of the first organic component is higher than the first preset concentration so as to increase the supply amount of the powder particle adsorbing material.
5. The multistage merging-separating progressive saturated adsorption purification system according to claim 1, wherein the merging-separating dynamic desorption regeneration device further comprises a first desorption jet fan, an outlet of the adsorption discharge pipeline of the first stage adsorption unit is connected to the bottom of the desorption tower, an input end of the first desorption jet fan is connected to the adsorption discharge pipeline of the first stage adsorption unit, and an output end of the first desorption jet fan is connected to the adsorption discharge pipeline of the first stage adsorption unit, wherein:
first desorption jet fan is used for, through first order adsorption unit combustion gas will first order adsorption unit exhaust powder granule adsorption material sends into desorption tower bottom.
6. The multistage merging and separating type gradual saturated adsorption purification system according to claim 1, wherein the merging and separating type dynamic desorption regeneration device further comprises a second desorption jet fan, an output end of the second desorption jet fan is connected with the adsorption feeding pipeline and the desorption discharging pipeline of the last stage adsorption unit, and an input end of the second desorption jet fan is connected with the adsorption discharging pipeline of the last stage adsorption unit;
and the second desorption jet fan is used for feeding the powder particle adsorption material discharged by the combined separation type dynamic desorption regeneration device into the adsorption tower of the last stage adsorption unit through the gas discharged by the last stage adsorption unit.
7. The multi-stage combination separation type gradual saturation adsorption purification system according to claim 1, wherein the combination separation type dynamic desorption regeneration device comprises a heated air circulation heating device comprising a heat exchanger, a circulation heating pipeline, a nitrogen supplement pipeline, a nitrogen adjustment valve and a circulation heating fan, wherein:
the input end of the heat exchanger is connected with the top of the desorption tower, the output end of the heat exchanger is connected with the input end of the circulating heating fan, the output end of the circulating heating fan is connected with the inlet of the circulating heating pipeline, the outlet of the circulating heating pipeline is connected with the desorption air inlet pipeline, and the circulating heating pipeline is connected with the nitrogen supplementing pipeline and the nitrogen regulating valve; the nitrogen supplementing pipeline and the nitrogen regulating valve are used for purging nitrogen in the desorption regeneration system before the desorption regeneration system is started so as to remove oxygen in the system, and the nitrogen is supplemented in real time in the system running process so as to ensure the absolute safety of the system in a high-temperature running state.
8. The multistage merging and separating type gradual saturated adsorption purification system according to claim 7, wherein the merging and separating type dynamic desorption regeneration device further comprises a desorption gas merging and conveying device, the desorption gas merging and conveying device comprises a third desorption jet fan and a desorption gas merger, an input end of the desorption gas merger is connected with the bottom of the desorption tower and an output end of the third desorption jet fan, an output end of the desorption gas merger is connected with an inlet of the desorption feed pipeline, and an input end of the third desorption jet fan is connected with the circulating heating pipeline, wherein:
the third desorption jet fan is used for mixing the gas discharged by the circulating heating pipeline and the powder particle adsorption material discharged from the bottom of the desorption tower and then sending the mixture into the desorption tower again;
and the desorption gas-material combiner is used for combining the powder particle adsorption material discharged from the bottom of the desorption tower and the gas conveyed by the third desorption jet fan.
9. The multi-stage combination-separation type progressive saturation adsorption purification system according to claim 7, wherein the combination-separation type dynamic desorption regeneration apparatus further comprises a second concentration monitoring instrument, a temperature monitoring instrument and a second control unit, the second concentration monitoring instrument and the temperature monitoring instrument are installed in the desorption tower, the second concentration monitoring instrument, the temperature monitoring instrument and the hot air circulation heating apparatus are connected to the second control unit, wherein:
the second concentration monitoring instrument is used for detecting the concentration of a second organic component of the gas in the desorption tower and sending the concentration of the second organic component to the second control unit;
the temperature monitoring instrument is used for detecting the temperature of the gas in the desorption tower and sending the temperature to the second control unit;
the second control unit is used for controlling the circulating heating device to reduce the input power when the concentration of the second organic component is equal to or more than a second preset concentration and the temperature is equal to or more than a first preset temperature; and when the concentration of the second organic component is less than the second preset concentration and the temperature is less than the first preset temperature, controlling the circulating heating device to increase the input power.
10. The multi-stage combination-separation type progressive saturation adsorption purification system according to claim 9, further comprising a condensation recovery device, wherein the desorption exhaust pipe is connected to the condensation recovery device, and is provided with a second valve connected to the second control unit, wherein:
the second control unit is used for controlling the second valve to be opened so as to enable the gas in the desorption tower to be conveyed to the condensation recovery device through the desorption exhaust pipeline when the concentration of the second organic component is higher than a second preset concentration and the temperature is higher than a first preset temperature;
and the condensation recovery device is used for condensing the gas discharged by the desorption exhaust pipeline into liquid through the multistage condenser and collecting the liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310000575.2A CN115671957B (en) | 2023-01-03 | 2023-01-03 | Multistage merging and separating type progressive saturated adsorption purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310000575.2A CN115671957B (en) | 2023-01-03 | 2023-01-03 | Multistage merging and separating type progressive saturated adsorption purification system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115671957A CN115671957A (en) | 2023-02-03 |
| CN115671957B true CN115671957B (en) | 2023-03-21 |
Family
ID=85057466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310000575.2A Active CN115671957B (en) | 2023-01-03 | 2023-01-03 | Multistage merging and separating type progressive saturated adsorption purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115671957B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5628633A (en) * | 1979-08-16 | 1981-03-20 | Sumitomo Heavy Ind Ltd | Multistage type orthogonal flow moving bed apparatus |
| JPH10286426A (en) * | 1997-04-15 | 1998-10-27 | Kuraray Eng Kk | Continuous adsorption device and utilizing method of the same |
| JP4317304B2 (en) * | 1999-11-15 | 2009-08-19 | 株式会社クレハエンジニアリング | Apparatus and method for multistage adsorption treatment of exhaust gas |
| JP2004195353A (en) * | 2002-12-18 | 2004-07-15 | Fujitsu Ltd | Apparatus for treating exhaust gas |
| CN102772981B (en) * | 2012-03-12 | 2014-10-22 | 甘肃银光聚银化工有限公司 | Device for continuously adsorbing and desorbing organic waste gas by using active carbon |
| WO2017165975A1 (en) * | 2016-03-31 | 2017-10-05 | Inventys Thermal Technologies Inc. | Multi-stage adsorptive gas separation process and system |
| CN209034080U (en) * | 2018-09-26 | 2019-06-28 | 广州市馨湛环保设备有限公司 | A kind of novel waste gas treatment device |
| CN109513311B (en) * | 2019-01-16 | 2022-03-04 | 上海环境保护有限公司 | Waste gas treatment method for realizing high-efficiency energy-saving dynamic fluidized bed graded adsorption |
-
2023
- 2023-01-03 CN CN202310000575.2A patent/CN115671957B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 徐梦 ; 薛发生 ; 王勇 ; 张东东 ; 崔龙哲 ; .挥发性有机废气吸附脱附实验装置的研制.(第02期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115671957A (en) | 2023-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018000857A1 (en) | Flue gas desulfurization and denitrification method and device | |
| CN102580455A (en) | Sintering smoke treatment system and sintering smoke treatment method | |
| CN112717679A (en) | Organic waste gas multistage purification equipment and process integrating regenerative oxidation function | |
| CN110394020B (en) | Nitrogen centralized desorption system for treating waste activated carbon containing VOCs | |
| CN107537280A (en) | Application process of the molecular sieve runner in VOC processing | |
| CN106902617A (en) | A kind of high concentration VOC air purifying recovering apparatus and method | |
| CN114307535A (en) | System and method for directly capturing carbon dioxide by continuous air | |
| CN113441007A (en) | Active carbon integration SOx/NOx control system | |
| CN101670239A (en) | A filter device that removes nitrous oxides and dioxins from discharge gas and filtrating method thereof | |
| CN114053812B (en) | High-temperature dust-containing gas dust removal, desulfurization and denitrification integrated device and method | |
| CN204503101U (en) | Active carbon thermal analysis apparatus | |
| CN115671957B (en) | Multistage merging and separating type progressive saturated adsorption purification system | |
| CN111744325A (en) | Circulating fluidized bed system for realizing continuous treatment of organic waste gas | |
| CN108079766A (en) | A kind of low concentration big flow organic exhaust gas closed loop multistage retracting device and recovery method | |
| CN210729078U (en) | A desorption system is concentrated to vapor for handling useless active carbon that contains VOCs | |
| CN202224048U (en) | Sintering flue gas treatment device | |
| CN108114575B (en) | Separated waste gas treatment device and treatment method | |
| CN111228963A (en) | Efficient catalytic oxidation system based on absorption and desorption coupling of double-circulating fluidized bed | |
| CN216537693U (en) | System for directly capturing carbon dioxide by continuous air | |
| CN217015933U (en) | Calcining flue gas purifying treatment system | |
| CN208032235U (en) | A kind of separate type emission-control equipment | |
| CN108579330A (en) | One kind being directed to Wind Volume high concentration polluted air from paint booth governing system and method | |
| CN210729077U (en) | Nitrogen centralized desorption system for treating waste activated carbon containing VOCs | |
| CN111715029B (en) | Organic waste gas continuous treatment method based on circulating fluidized bed system | |
| CN210729079U (en) | Integrated car of portable nitrogen gas desorption regeneration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A multi-stage merging separation progressive saturation adsorption purification system Granted publication date: 20230321 Pledgee: Guangdong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU JP.EPE Co.,Ltd. Registration number: Y2024440000001 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |