CN111715030A - Fluidized bed waste gas zero discharge system - Google Patents
Fluidized bed waste gas zero discharge system Download PDFInfo
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- CN111715030A CN111715030A CN202010692706.4A CN202010692706A CN111715030A CN 111715030 A CN111715030 A CN 111715030A CN 202010692706 A CN202010692706 A CN 202010692706A CN 111715030 A CN111715030 A CN 111715030A
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- 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
- B01D53/06—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 moving adsorbents, e.g. rotating beds
- B01D53/10—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 moving adsorbents, e.g. rotating beds with dispersed adsorbents
- B01D53/12—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 moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
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Abstract
The embodiment of the invention discloses a fluidized bed waste gas zero emission system, which comprises: gas collection unit, fluidized bed adsorb purifying unit, desorption regeneration unit, recovery unit and gas balance unit, wherein, gas collection unit is used for collecting organic waste gas, fluidized bed adsorbs purifying unit and is used for purifying organic waste gas, and the saturated adsorption filler of simultaneous discharge absorption gets into desorption regeneration unit, desorption regeneration unit is used for carrying out desorption regeneration to the adsorption filler that gets into and carries extremely after the fluidized bed adsorbs purifying unit, recovery unit is used for right the organic component that produces among the desorption regeneration unit regeneration process carries out recycle. This scheme simple structure, gaseous purification is thorough, and the suitability is strong.
Description
Technical Field
The embodiment of the application relates to the technical field of air treatment, in particular to a fluidized bed waste gas zero discharge system.
Background
In the production and manufacturing process of products in production workshops (such as gluing and bonding workshops in shoe making factories, printing workshops in printing factories, paint coating production workshops, various organic chemical product production workshops, glass fiber reinforced plastic product production workshops, paint spraying workshops, musical instruments, wooden furniture surface treatment workshops, tapes, leathers, adhesive production workshops and the like), a lot of harmful gases, such as common various VOC organic waste gases, are generated, and the problems of good and bad indoor air quality and waste gas emission become one of important problems in current research.
In the prior art, the fixed bed adsorption technology has low purification efficiency, unstable operation and frequent standard exceeding, and can not treat high-concentration waste gas; the absorption liquid absorption technology has a good treatment effect under high-concentration waste gas, but has low absorption efficiency, is not suitable for low-concentration treatment, and has a complicated regeneration separation system.
Disclosure of Invention
The embodiment of the invention provides a fluidized bed waste gas zero emission system which is simple in structure, thorough in gas purification and strong in applicability.
Specifically, the fluidized bed zero emission system provided by the embodiment of the present invention includes: gas collection unit, fluidized bed adsorb purifying unit, desorption regeneration unit, recovery unit and gas balance unit, wherein, gas collection unit is used for collecting organic waste gas, fluidized bed adsorbs purifying unit and is used for purifying organic waste gas, and the saturated adsorption filler of simultaneous discharge absorption gets into desorption regeneration unit, desorption regeneration unit is used for carrying out desorption regeneration to the adsorption filler that gets into and carries extremely after the fluidized bed adsorbs purifying unit, recovery unit is used for right organic composition that produces among the desorption regeneration unit regeneration process carries out recycle, gas balance unit is used for carrying out gas balance to the gas after purifying and handles, makes the gas circulation retrieval and utilization that reaches gas balance after purifying, realizes the zero release of gas treatment.
Optionally, the fluidized bed adsorption purification unit comprises a pre-filtration purifier, a fan regulating valve, a storage tank type material conveying device, an adsorption tower, an electric scraper discharger, a tower body support column, a rotating scraper, an internal access hole, a gas distributor, a gas inlet connecting flange, a multi-shaft composite function device, a feed opening, an even distribution device, a wind-power auxiliary distribution fan, a filler separation plate, an exhaust purification filter, a crushed aggregate dust discharge valve, an exhaust connecting pipe and an exhaust outlet.
Optionally, the fluidized bed adsorption purification unit further comprises a back-flushing cleaning robot, and the back-flushing cleaning robot is started according to the resistance change of the filler separation plate.
The desorption regeneration unit comprises a material conveying device, an air supply adjusting valve, a desorption regeneration device, a regeneration high-level tank, a vibration blanking device, an in-tank filter, an auxiliary wind conveying device, a feeding high-level tank, an in-tank filter, a cooling fan, a hot air fan, a heating device, a nitrogen storage tank and valve components on corresponding equipment.
Optionally, the desorption and re-loading device is arranged in a one-use one-standby mode or a multi-use one-standby mode.
Optionally, the desorption regeneration device includes first desorption regeneration unit, second desorption regeneration unit and the multi-purpose N desorption regeneration unit that is equipped with, and every desorption regeneration unit disposes corresponding valve, works as first desorption regeneration unit material is filled up the back, closes the valve and makes it be in reserve desorption state of waiting to regenerate, opens simultaneously the valve of second desorption regeneration unit carries out the material and fills, analogizes with so on.
Optionally, when a regeneration desorption operation program is entered, opening a regeneration heat-conducting medium and a regeneration gas valve of the first desorption regeneration unit, starting the heating device and the hot air blower to perform cyclic heating, and when the gas temperature and the organic gas concentration are detected to reach set indexes, sending the high-temperature high-concentration organic gas into the recovery unit; after the regeneration desorption operation procedure is finished, starting a regeneration desorption cooling procedure; and after the operation of the regeneration desorption cooling program is finished, entering a discharging program.
Optionally, the recovery unit includes first in condensation recovery unit, catalytic combustion unit, heat accumulation combustion unit, the direct combustion unit of inner flame torch, condensation recovery unit includes that condensation retrieves fan, condenser, condensate storage tank, heat exchanger, refrigeration unit and cooling tower and its corresponding equipment on the function valve of connecting, catalytic combustion unit and/or heat accumulation burning and/or the direct combustion of inner flame torch include fan, catalytic combustion device and/or heat accumulation burning and/or the direct combustion of inner flame torch and supporting function valve thereof.
Optionally, the fluidized bed zero emission system of exhaust gas further includes a pretreatment unit, and the pretreatment unit is configured to remove solid impurities and aerosol particles in the organic exhaust gas collected by the gas collection unit.
Optionally, the fluidized bed waste gas zero emission system further comprises a gas balance unit, the gas balance unit is connected with the fluidized bed adsorption purification unit and used for receiving the purified gas and realizing a gas balance function, recycling the purified gas and realizing zero emission of gas treatment
Compared with the prior art, the scheme has the advantages that the gas purification is more thorough, the gas with high and low concentration is suitable, the zero emission of the gas is realized, the investment cost is low, and the structure is simple.
Drawings
FIG. 1 is a schematic block diagram of a fluidized bed zero emission system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a gas collection unit and a fluidized bed adsorption purification unit of a fluidized bed waste gas zero emission system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a desorption regeneration unit of a fluidized bed zero emission system in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a cooling recovery unit of a zero emission system of fluidized bed waste gas according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a catalytic combustion unit of a fluidized bed zero emission system.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
The scheme provides a fluidized bed (also called a fluidized bed) zero exhaust gas emission system, which is described in detail as follows.
Fig. 1 is a schematic block diagram of a fluidized bed zero emission system according to an embodiment of the present invention, and as shown in fig. 1, the fluidized bed zero emission system includes a gas collection unit 100, a fluidized bed adsorption purification unit 200, a desorption regeneration unit 300, a recovery unit 400, a pretreatment unit 500, a gas balancing unit 600, and a workshop air supply pipeline 700.
The recovery unit 400 includes an oxidation combustion unit 401 and a condensation recovery unit 402.
In one embodiment, the system is located in a production plant that produces VOC organic gases, such as: shoemaking mill rubber coating bonding workshop, printing mill print shop, paint coating workshop, all kinds of organic chemicals workshop, glass steel product workshop, spray paint, spraying workshop, musical instrument, wood system furniture surface treatment workshop sticky tape, leather, adhesive workshop etc. produce a large amount of volatile organic waste gas in process of production, specific exhaust purification flow is:
Wherein, the adsorption filler with saturated adsorption is discharged from the bottom of the fluidized bed adsorption purification unit 200 and enters the desorption regeneration unit 300, and the filler after desorption regeneration circularly enters the fluidized bed adsorption purification unit 200 again. Organic components generated in the desorption and regeneration process enter the recovery unit 400 for recovery treatment.
The specific system architecture and process flow will now be described as follows:
fig. 2 is a schematic structural diagram of a gas collection unit and a fluidized bed adsorption purification unit of a fluidized bed waste gas zero discharge system according to an embodiment of the present invention, as shown in the figure, the gas collection unit 100 is composed of a gas collection pipeline main pipe 22, a gas collection pipeline branch pipe 23, and a backflow gas distribution pipeline 24, and organic waste gas generated in a production process of a production workshop 21 enters the gas collection pipeline main pipe 23 through the gas collection pipeline branch pipe 22 uniformly arranged, is collected, is pretreated, and then enters the fluidized bed adsorption purification unit 200.
Wherein, the pretreatment unit is composed of a prefilter 18 in the figure. The fluidized bed adsorption purification unit 200 comprises a fan 19, a fan regulating valve 20, a storage tank type material conveying device 11, an adsorption tower 3, an electric scraper discharger 13 which is arranged in the adsorption tower 3 and on the adsorption tower body, a tower body support column 14, a rotating scraper 15, an internal access hole 16, a gas distributor 17, a gas inlet connecting flange 1, a multi-shaft composite function device 2, a feed opening 4, an even material distribution device 5, a wind power auxiliary material distribution fan 5.1, a filler separating plate 6, an exhaust purification filter 7, a crushed material dust discharge valve 8, an exhaust connecting pipe 9 and an exhaust outlet 10.
The gas sent from a workshop gas collecting pipeline by an adsorption tower 3 firstly enters a pre-filter 18, then is sent into the adsorption tower by a fan 19, enters a gas distribution device 17 through a gas inlet 1, upwards and uniformly passes through a gas distribution plate 2 through the gas distribution device 17 to enter an adsorption tower body, is added from the upper part of the tower body through a feeding port 4, is uniformly distributed by a material distribution device 5 and then downwards scattered under the action of a wind-assisted material distribution fan 5.1, is in reverse contact with organic waste gas, is suspended in the tower in a fluidized state under the action of a set wind speed in the tower and is fully contacted with gas containing organic components, so that the adsorption filler is adsorbed in a microporous structure in the adsorption filler, the specific gravity of the adsorption saturated adsorption filler is increased through effective adsorption within a set time, the adsorption filler is downwards settled on a multi-shaft composite function device 2, and then the multi-shaft composite function device is rotated at proper time according to a set program, the filler which is settled on the multi-shaft composite function device and is saturated in adsorption is discharged to the bottom plate of the fluidized bed adsorption tower, meanwhile, according to the program setting, the vibration feeder 35.3 on the feeding high-level tank 35 of the supplementary feeding device is started, the CF3 feeding valve is opened, the adsorption filler needing to be quantitatively supplemented passes through the feeding port 4 under the action of the wind power auxiliary material distributing fan 5.1, is uniformly distributed by the material distributing device 5 and then is downwards scattered to supplement the adsorption filler in time, meanwhile, the saturated absorption filler settled on the bottom plate of the tower body is scraped into the discharge hole 12 and falls into the storage tank type feeding device 11 under the action of the rotating motor 13 pushing the rotating scraper device 15, under the action of a negative pressure wind power conveying device 34.2 arranged on the upper surface of the regeneration high-level tank 34, the adsorption filler which enters the storage tank type feeding device 11 and is saturated in adsorption and needs to be regenerated is conveyed to the regeneration high-level tank 34.
The gas after being adsorbed and purified is blocked by the perforated material baffle plate 6 (the adsorption filler is controlled to pass through), the gas enters the exhaust filter 7 from the tower top discharge pipe 9, the filtered gas circularly enters the gas balance unit 600 through the circulating pipeline (the gas of the system without the circulating reuse condition is directly discharged), and the adsorption filler micro-particles generated by filtering through the exhaust filter 7 and damaged by mutual friction of the filler in the adsorption process are regularly cleaned and are sent to the waste collecting device for reuse by the discharge device 8.
Fig. 3 is a schematic structural diagram of a desorption regeneration unit of a fluidized bed waste gas zero emission system according to an embodiment of the present invention, as shown in fig. 3, the desorption regeneration unit includes a storage tank type material conveying device 31, an air supply regulating valve 32, a desorption regeneration device 33 which is one-by-one or more according to process requirements, a regeneration high-level tank 34 and a vibration feeder 34.3 mounted thereon, an in-tank filter 34.1, an air auxiliary conveying device 34.2, a feeding high-level tank 35 and a vibration feeder 35.3 mounted thereon, an in-tank filter 35.1, an air auxiliary conveying device 35.2, a cooling fan 38, a hot air fan 39, a desorption heat source 39.1, a heat transfer medium circulating pump 39.2, a conveying pipeline 39.3, a return pipeline 39.4 and a valve assembly on the circulating pipeline thereof, a replacement gas heating device 37, a nitrogen storage tank 36 and a valve assembly on corresponding equipment, etc. Under the action of a wind-assisted material distribution fan 34.2 arranged on a regeneration high-level tank 34, a storage tank type material conveying device 11 arranged at the lower part of a fluidized bed adsorption purification unit conveys adsorption-saturated adsorption filler to the regeneration high-level storage tank 34, air in material conveying airflow returns to an air inlet of an air inlet adjusting valve 11.1 of the storage tank type material conveying device 11 through an in-tank filter discharge pipeline for recycling, the filler in the high-level storage tank 34 is fed to a regeneration desorption device 33 through an opened discharge valve CF1 under the action of a vibration feeder 34.3, at the moment, an inlet valve GF1 of the regeneration desorption device 33 is opened, an outlet valve GF2 of the regeneration desorption device 33 is closed, an atmosphere communication valve F9 of the regeneration desorption device 33 is opened for charging, and after the regeneration desorption device 33 is filled, the closed discharge valve CF1, the atmosphere communication valve F9 and an inlet and outlet valve GF1, GF2, the regeneration desorption device 33 is in a standby desorption state to be regenerated; at this time, the other set of regenerative desorption devices 33 enters the charging process according to the same process.
When the regeneration desorption device 33 enters a regeneration desorption operation program according to program requirements, the regeneration air valves F1, F2, FZ9 on the regeneration desorption device 33 are opened, and F3 and F4 are closed; starting a desorption heat-conducting medium heat source 39.1, a heat-conducting medium circulating pump 39.2, opening a valve FZA on a conveying pipeline 39.3, a return pipeline 39.4 and a valve FZB on a valve component on the circulating pipeline, when the internal temperature of the circulating heating regeneration device reaches a set index, then starting a replacement gas source heating device 37, a hot air fan 39 and valves KF1, DF1, RF1, RF2 and F12 on an air-conditioning heating pipeline for hot air replacement, and when the gas temperature and the organic gas concentration reach the set index, starting FZ10, and sending the high-temperature and high-concentration organic gas to a condensation recovery system and/or an RTO regenerative combustion and/or RCO catalytic combustion system selected according to the process requirements.
After the regeneration desorption is completed, the system enters a regeneration desorption device cooling program, at this time, regeneration air valves F2, F2 and FZ9 on the regeneration desorption device 33 are closed, the desorption heat-conducting medium heat source 39.1 is closed, the heat-conducting medium circulating pump 39.2 is closed, the valve FZA on the conveying pipeline 39.3 and the valve assembly FZB on the return pipeline 39.4 are closed, and F3 and F4 are opened; and (3) closing the heating device 37, starting the cooling fan 38, and sending the cooled gas to a heat exchanger 47 of the condensation recovery system 04 to recover the cold energy in the discharged gas after condensation recovery, so as to reduce the energy consumption of the system.
And when the set of regeneration desorption device finishes the cooling operation procedure, the unloading procedure is started, and the other set of regeneration desorption device finishes the charging procedure starts the heating regeneration operation procedure.
And (3) after the regeneration desorption device finishes cooling and enters a discharging procedure, at the moment, the discharging valves CF2 are opened, the storage tank type material conveying device 31 and the fan 35.2 of the wind power auxiliary feeding device above the feeding high-level tank 35 are started, the regenerated adsorption filler is conveyed to the feeding high-level tank 35, after discharging is finished, the discharging valves CF2 are closed, the storage tank type material conveying device 31 and the fan 35.2 of the wind power auxiliary feeding device above the feeding high-level tank 35 are closed, and the system is in a feeding standby state.
When the operation program needs to supplement feeding, a vibrating feeder 35.3 on a feeding high-level tank 35 is started, CF2 of feeding valves is opened, a wind power auxiliary material distribution fan 5.1 on an adsorption tower enables supplementary fillers to enter a material distribution device 5 through a feeding hole 4, the supplementary adsorption fillers are uniformly distributed on the upper portion of the adsorption tower under the action of auxiliary wind power and are in a suspended state with waste gas coming from below to roll up and down to be in a fluidized boiling state, adsorption filler particles are fully mixed and fully contacted with organic molecules in the waste gas, so that the adsorption filler particles are fully and effectively adsorbed, the specific gravity of the adsorption filler particles is gradually increased along with the increase of the adsorption quantity, the sinking resistance (thrust of upward airflow) is gradually overcome under the action of self gravity, the adsorption filler particles are settled on a perforated plate with multi-axis composite function gas uniform distribution after saturation, and then the multi-axis composite function gas uniform distribution is rotated according to, make and subside the absorption saturation filler that subsides on multiaxis complex function gas equipartition perforated plate and empty on the tower body bottom plate, be scraped into discharge opening 12 by rotatory scraper blade, fall into storage tank type conveyor 11, form the circulation process after the absorption filler regeneration.
Fig. 4 is a schematic structural diagram of a cooling recovery unit of a fluidized bed waste gas zero emission system according to an embodiment of the present invention, as shown in fig. 4, the cooling recovery unit is composed of a condensation recovery fan 40, a condenser 43, a condenser 45, a condensate storage tank 44, a condensate storage tank 46, a heat exchanger 47, a refrigerating unit 42, a cooling tower 41, and functional valves connected to corresponding devices thereof, and high-concentration organic waste gas generated by a desorption regeneration unit is sent to a # 1 condenser 43 through ZF10, LF5, and LF3, and low-boiling organic components in the gas are condensed into liquid and discharged to the # 1 condensate storage tank 44 through LF 1; then, the uncondensed high-boiling-point components enter a 2# condenser 45 through FZ7 and LF4, the high-boiling-point organic components in the gas are condensed into liquid, and the liquid is discharged to a 2# condensate storage tank 46 through LF 2; the low-temperature gas which is separated after condensation and contains a small amount of non-condensable gas and air is introduced into the heat exchanger 47 to exchange heat with the air entering the cooling fan, part of cold energy is recycled, and the energy consumption of the whole system is reduced. The air flow after cold quantity exchange is sent to the gas inlet 1 of the adsorption tower of the fluidized bed adsorption purification unit and enters the adsorption tower again for adsorption.
Fig. 5 is a schematic structural diagram of a catalytic combustion unit of a fluidized bed waste gas zero emission system according to an embodiment of the present invention, as shown in fig. 5, the catalytic combustion unit is composed of a fan 50, a catalytic combustion device and a functional RF6 valve matched with the catalytic combustion device, the combustion fan adjusts the concentration of the high-concentration organic waste gas generated by the regeneration and desorption unit through an air distribution valve F12 and ST1, and then sends the organic waste gas to the catalytic combustion device for low-temperature catalytic combustion, so as to oxidize the organic waste gas into carbon dioxide and water, before the organic waste gas is discharged to the atmosphere, a part of heat is recovered through a heat exchanger 52, so that the gas from the fluidized bed adsorption and purification unit to be heated exchanges heat with the discharged combustion waste gas through the heat exchanger, the gas with the temperature increased by the heat exchanger is guided to a heating device. The combustion waste gas releasing heat is discharged, in a continuous operation system, the heat in the discharged waste gas after combustion passes through a heat exchanger, part of heat is recovered, the heat exchanger is used for heating heat exchange medium heat conduction oil or nitrogen gas required by desorption regeneration, and the energy consumption of the whole system is reduced.
In the specific system design, a heat storage combustion device can be selected, the process is similar to catalytic combustion, only the catalytic combustion utilizes a catalyst for low-temperature catalytic combustion, the heat storage combustion is high-temperature combustion, and the furnace body adopts a heat storage material to heat the gas before combustion through heat storage, so that the effect of energy conservation is achieved.
And for a system with smaller scale, the continuous operation is inconvenient, and the direct combustion of the inner flame type torch can be adopted, so that the operation cost is lower, and the control and the operation management are simpler.
As can be seen from the above description of the specific process flow and system structure, the main structural features of the present solution include:
1) fluidized bed adsorption tower structure with simple structure
2) Airflow-assisted uniform distributing device
3) Electric rotary scraper type discharging device
4) Multipurpose heating and regenerating device
5) Multi-axis composite function gas uniform distribution device
6) Adapting various post-treatment devices (regenerative combustion RTO, catalytic combustion RCO, condensation recovery, direct internal flame torch combustion, etc.)
The main protection points and the beneficial effects are as follows:
1) fluidized bed structure, tower bottom scraper unloading device, wind power auxiliary feeding and distributing device and robot back-blowing cleaning device
2) Zero emission of waste gas circulation treatment
3) Storage tank type collecting and feeding device
4) The multi-bed parallel regeneration desorption process has the advantages that a heat-conducting oil heat source and process gas are circularly operated without being discharged (heating: indirectly heating the heat conducting oil; gas agitation accelerated heat transfer medium: a plurality of sets of filtered and purified air are connected in parallel, one set is finished, the other set is started, and the waste heat and the gas are recycled; condensing medium: adopting organic gas steam mixed with quantitative gas according to the requirements of a post-treatment process, wherein the temperature is as follows: high temperature, two-stage or three-stage condensation, the organic vapor phase is changed into liquid and then recovered, the released latent heat firstly heats the gas used for circulation, and the gas returns to the adsorption system after the temperature is reduced; the first-stage condenser adopts gas-liquid two-stage condensation, firstly performs gas-gas heat exchange to recover heat, then further performs liquid-gas condensation according to condensation requirements to recover organic components
5) The multi-shaft composite function gas uniform distribution device respectively realizes that the filler is fluidized and boiled in the adsorption period, rotates and inclines to discharge the filler in the replacement period and receives the filler replaced from the upper layer in the update period according to the program setting
6) The multi-heat-source heat exchange type regeneration desorption device is heated by mixing heat conduction oil and gas, the heat conduction oil is high in temperature and cannot expand, the pipeline valve is simple in configuration, the pressure of a container does not need to be considered, and the operation safety is good.
Compared with the prior art, the scheme has the advantages of simple structure, thorough gas purification and strong applicability.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, adaptations, and substitutions are possible, without departing from the scope of the embodiments of the present invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (10)
1. Fluidized bed zero emission system of exhaust gases, characterized in that the system comprises: gas collection unit, fluidized bed adsorb purifying unit, desorption regeneration unit, recovery unit and gas balance unit, wherein, gas collection unit is used for collecting organic waste gas, fluidized bed adsorbs purifying unit and is used for purifying organic waste gas, and the saturated adsorption filler of simultaneous discharge absorption gets into desorption regeneration unit, desorption regeneration unit is used for carrying out desorption regeneration to the adsorption filler that gets into and carries extremely after the fluidized bed adsorbs purifying unit, recovery unit is used for right organic composition that produces among the desorption regeneration unit regeneration process carries out recycle, gas balance unit is used for carrying out gas balance to the gas after purifying and handles, makes the gas circulation retrieval and utilization that reaches gas balance after purifying, realizes the zero release of gas treatment.
2. The fluidized bed zero exhaust gas emission system of claim 1, wherein the fluidized bed adsorption purification unit comprises a pre-filtration purifier, a fan regulating valve, a storage tank type material conveying device, an adsorption tower, an electric scraper discharger, a tower body support column, a rotary scraper, an internal access hole, a gas distributor, a gas inlet connecting flange, a multi-shaft composite function device, a feeding port, a uniform distribution device, a wind-assisted distribution fan, a filler separation plate, an exhaust purification filter, a crushed material dust discharge valve, an exhaust connecting pipe and an exhaust port.
3. The fluidized bed zero exhaust gas emission system according to claim 2, wherein the fluidized bed adsorption purification unit further comprises a back-flushing cleaning robot, and the back-flushing cleaning robot is activated according to the resistance change of the filler separation plate.
4. The fluidized bed zero exhaust gas emission system of claim 1, wherein the desorption regeneration unit comprises a material conveying device, an air supply regulating valve, a desorption regeneration device, a regeneration overhead tank, a vibration feeder, an in-tank filter, an air auxiliary conveying device, a feeding overhead tank, an in-tank filter, a cooling fan, a hot air fan, a heating device, a nitrogen storage tank and valve components on corresponding equipment.
5. The fluidized bed zero emission of exhaust gas system according to claim 3, wherein the desorption regeneration device is arranged in a one-to-one or multi-to-one mode.
6. The fluidized bed zero emission of exhaust gas system according to claim 5, wherein the desorption regeneration device comprises a first desorption regeneration unit, a second desorption regeneration unit and a multi-purpose N desorption regeneration unit, each desorption regeneration unit is provided with a corresponding valve, when the first desorption regeneration unit is filled with the material, the valve is closed to enable the first desorption regeneration unit to be in a standby desorption state to be regenerated, and simultaneously, the valve of the second desorption regeneration unit is opened to fill the material, and so on.
7. The fluidized bed zero emission of exhaust gas system according to claim 6, wherein when entering a regeneration desorption operation procedure, the regeneration heat transfer medium and the regeneration gas valve of the first desorption regeneration unit are opened, the heating device and the hot air blower are started to perform circulation heating, and when the gas temperature and the organic gas concentration are detected to reach set indexes, the high-temperature high-concentration organic gas is sent to the recovery unit; after the regeneration desorption operation procedure is finished, starting a regeneration desorption cooling procedure; and after the operation of the regeneration desorption cooling program is finished, entering a discharging program.
8. The fluidized bed zero exhaust gas emission system according to any one of claims 1 to 7, wherein the recovery unit comprises one of a condensation recovery unit, a catalytic combustion unit, a regenerative combustion unit and an inner flame torch direct combustion unit, the condensation recovery unit comprises a condensation recovery fan, a condenser, a condensate storage tank, a heat exchanger, a refrigerating unit and a cooling tower and functional valves connected to corresponding devices of the condensation recovery unit, and the catalytic combustion and/or regenerative combustion and/or inner flame torch direct combustion unit comprises a fan, a catalytic combustion device and/or a regenerative combustion device and/or an inner flame torch direct combustion device and matched functional valves thereof.
9. The fluidized bed zero emission system of any one of claims 1 to 7, further comprising a pretreatment unit for removing solid impurities and aerosol particles from the organic exhaust gas collected by the gas collection unit.
10. The fluidized bed zero emission of exhaust gas system according to claim 9, wherein the gas balance unit is connected to the fluidized bed adsorption purification unit, and is configured to receive the purified gas and perform a gas balance function, and to recycle the purified gas to achieve zero emission of gas treatment.
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| CN202010692706.4A CN111715030A (en) | 2020-07-17 | 2020-07-17 | Fluidized bed waste gas zero discharge system |
| PCT/CN2020/134467 WO2022011937A1 (en) | 2020-07-17 | 2020-12-08 | Fluidized bed system capable of realizing zero emissions of waste gas |
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| CN202010692706.4A CN111715030A (en) | 2020-07-17 | 2020-07-17 | Fluidized bed waste gas zero discharge system |
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| CN113069886A (en) * | 2021-04-29 | 2021-07-06 | 孙绍堂 | Multilayer fluidized bed organic waste gas adsorption purification system |
| WO2022011937A1 (en) * | 2020-07-17 | 2022-01-20 | 广州金鹏环保工程有限公司 | Fluidized bed system capable of realizing zero emissions of waste gas |
| CN114307531A (en) * | 2021-12-30 | 2022-04-12 | 四川天采科技有限责任公司 | Refinery VOCs tail gas fluidized moving bed temperature swing adsorption FMBTSA purification process and system |
| CN117753168A (en) * | 2024-02-20 | 2024-03-26 | 福建浩氧环保有限公司 | But intelligent regulation concentration recovery formula RTO |
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| CN115957574B (en) * | 2023-02-20 | 2023-07-11 | 西安宝昱环境技术有限公司 | Be applied to CCL copper-clad plate factory rubberizing machine tower district interior low concentration exhaust treatment equipment |
| CN117359888B (en) * | 2023-10-25 | 2024-10-01 | 山东凯旋模塑有限公司 | Exhaust gas treatment system of injection molding machine |
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| CN113069886B (en) * | 2021-04-29 | 2024-06-11 | 孙绍堂 | Organic waste gas adsorption purification system of multilayer fluidized bed |
| CN114307531A (en) * | 2021-12-30 | 2022-04-12 | 四川天采科技有限责任公司 | Refinery VOCs tail gas fluidized moving bed temperature swing adsorption FMBTSA purification process and system |
| CN114307531B (en) * | 2021-12-30 | 2022-11-29 | 四川天采科技有限责任公司 | Refinery VOCs tail gas fluidized moving bed temperature swing adsorption FMBTSA purification process and system |
| CN117753168A (en) * | 2024-02-20 | 2024-03-26 | 福建浩氧环保有限公司 | But intelligent regulation concentration recovery formula RTO |
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