TWM577347U - Fluidized desorption device, fluidized adsorption-desorption concentration unit and waste gas purification system thereof - Google Patents

Abstract

A fluidized desorption device comprises an upright trough body, the upright trough body is provided with a plurality of adsorption particles, the upright trough body comprises an inflow dispersion portion, a desorption portion and a cooling portion; and the desorption portion is used to make the adsorption particles successively Entering through the inlet of the desorption portion, and fluidizing and floating in the space between the desorbed porous plates to fall back and forth, and then gradually exiting the desorption portion via the outlet of the desorption portion; the desorption portion is further used to desorb a desorbed gas The gas inlet enters and flows upward through the gas dispersion plate and the pores in the desorption perforated plate, and then discharges the desorption portion via the desorption gas outlet; the cooling portion communicates with the desorption outlet to cool the passing adsorbent particles. Thereby, the density of the adsorbed particles in the desorption portion is lower than that of the conventional fluidized desorption tower, which can reduce the amount of adsorbed particles used and reduce the cost of the fluidized desorption device.

Description

Fluidized desorption device, fluidized adsorption and desorption concentration unit and exhaust gas purification system thereof

The present invention relates to a VOC suction and desorption device and an exhaust gas purification system thereof, and more particularly to a fluidized VOC suction and desorption device and an exhaust gas purification system thereof.

Activated carbon adsorption treatment technology is a common technique for removing volatile organic compounds (VOCs). In the past, a fixed-bed adsorption and desorption system of two or more columns was used to adsorb VOC in the exhaust gas and desorb and regenerate the activated carbon after adsorption. The fixed bed suction and desorption system has the disadvantage that when dealing with highly reactive VOC, the hydrolysis reaction occurs when the adsorbed chemical is desorbed, causing corrosion or oxidation reaction of the carbon bed, and the heat energy generated by the reaction is fixed. The carbon bed is not well cooled, and there is a risk of a carbon bed catching fire.

In order to improve the disadvantages of fixed bed suction and desorption, a concentrating system for a spherical activated carbon fluidized bed for volatile organic gases has been developed, which system includes a fluidized adsorption tower, a flow desorption tower, a conveying device and a final treatment. Condensation or combustion equipment. The system may include VOC recovery or organic waste gas concentration purification depending on the purpose of use.

Please refer to FIG. 1 , which is a conventional flow type desorption tower, which is an upright trough body, wherein a de-addition heat part 1, a cooling part 2 and a storage tank part 3 are distinguished, and the de-heating part 1 is used. By heating the adsorption particles, the VOC in the adsorption particles is desorbed, and the desorbed gas is introduced into the bottom side of the desorption hot portion, and the desorbed gas flows upward and takes away the VOC desorbed from the adsorption particles, thereby completing the desorption of the adsorption particles. regeneration. The de-heating unit 1 continues to move downward to the cooling unit 2 for cooling, and the cooled adsorbed particles flow to the sump portion 3, and can be subsequently sent back to the adsorption tower. In other words, in the desorption column, the adsorption particle deposit is filled in the de-heating portion 1, the cooling portion 2, and the reservoir portion 3, and the adsorption particles are gradually moved downward by gravity.

As described in the applicant's application for the Republic of China invention patent I577439, the conventional mobile desorption tower has the disadvantage that the adsorbent particles substantially fill the desorption tower except for a few spaces above the angle of repose, and due to the adsorption of particles The cost is high, which increases the cost of the flow-type desorption column, and the cycle time of the adsorbed particles in the adsorption and desorption unit is significantly increased, which is necessary for improvement; and the applicant has applied for the approval of the Republic of China invention patent I367779. If the flow rate of the desorption tower in the localized region of the desorption tower due to the desorption flow is greater than or equal to the minimum fluidization velocity or the final blowing velocity of the adsorption pellet, the deconvolution is uneven, and the derivation heating temperature is uneven. Or problems such as adsorption of particles, there is a need for improvement.

The main object of the present invention is to provide a desorption column capable of reducing the amount of adsorbed particles used, and a suction and desorption concentrating unit to which the desorption column is applied, and an exhaust gas purification system therefor.

In order to achieve the above and other objects, the present invention provides a fluidized desorption device comprising an upright trough body, wherein the upright trough body is provided with a plurality of adsorption particles, and the upright trough body includes an inflow dispersion portion from top to bottom. An inlet portion and a cooling portion; the inflow dispersion portion has a feed port for connecting with the external adsorption particle conveying device, the inflow dispersion portion is for dispersing and dispersing the adsorption particles, and the inflow dispersion portion has a dispersion portion outlet located below the feed port The adsorption particles in the dispersion portion are successively separated from the inflow dispersion portion; the desorption portion has a desorption gas inlet, a desorption gas outlet, a desorption portion inlet, and a desorption portion outlet, desorption gas inlet and desorption The outlet of the outlet is lower than the outlet of the desorption gas and the inlet of the desorption portion, and the inlet of the desorption portion is connected to the outlet of the dispersing portion, and the desorption portion further has a desorption gas dispersion plate and a plurality of desorption porous plates, and the desorption porous plates are erected The height direction of the tank body is disposed between the desorption gas dispersion plate and the desorption gas outlet, the desorption portion outlet is disposed on the desorption gas dispersion plate; and the desorption portion is configured to allow the adsorption particles to successively pass through the desorption portion inlet And the space between the desorbed porous plates is fluidized and floated to fall back, and then gradually leaves the desorption portion via the outlet of the desorption portion; the desorption portion is further used to allow a desorption gas to enter through the desorption gas inlet And flowing upward through the gas dispersion plate and the pores in the desorption porous plate, and then discharging the desorption portion via the desorption gas outlet; the cooling portion is connected to the desorption outlet for cooling the passed adsorption particles.

In order to achieve the above and other objects, the present invention also provides a fluidized adsorption and desorption concentration unit comprising a fluidized desorption device, a fluidized adsorption column and an adsorption particle delivery device as described above, the fluidized adsorption column having a gas inlet to be treated, a treated gas outlet, an adsorption particle inlet and an adsorption particle outlet, the gas inlet and the adsorption particle outlet of the treatment are lower than the treated gas outlet and the adsorption particle inlet, and the fluidized adsorption tower is further The utility model has a gas dispersion plate to be treated and a multi-layer adsorption porous plate, wherein the gas dispersion plate to be treated is adjacent to the gas inlet to be treated, and the adsorption porous plates are arranged at intervals in the height direction of the fluidization adsorption tower on the gas dispersion plate to be treated and the treated gas. Between the outlets; the fluidized adsorption tower is configured to allow the adsorption particles to enter through the adsorption particle inlet, and to fall back and forth between the adsorption porous plates, and then exit the fluidization adsorption column through the adsorption particle output port; The adsorption tower is further configured to allow a gas to be treated to enter through the inlet of the gas to be treated, and pass through the gas dispersion plate to be treated and the The pores in the perforated plate flow upward, and then exit the fluidized adsorption column through the treated gas outlet; the adsorption particle transport device is connected to the fluidized adsorption column and the fluidized desorption device for adsorbing the adsorbed particles after the fluidized desorption device It is sent to the adsorption particle inlet and used to transport the adsorption particles leaving the adsorption particle outlet to the feed port.

In order to achieve the above and other objects, the present invention also provides an exhaust gas purification system comprising a fluidized absorption and desorption concentration unit and a post-processing unit as described above, the post-processing unit being coupled to the desorbing gas outlet for self-desorption The desorbed gas discharged from the gas outlet is post-treated.

With the above design, the fluidized desorption device of the present invention is expected to reduce the use of adsorbed particles by about two-thirds compared with the conventional mobile desorption column, which can significantly reduce the system cost and reduce the cycle time of the adsorbed particles.

Please refer to FIG. 2A, which is a first embodiment of the present fluidization desorption device, which comprises an upright trough body 10, and the vertical trough body 10 is provided with a plurality of adsorption particles 20, and the vertical trough body 10 is composed of The upper and lower portions include an inflow dispersion portion 30, a desorption portion 40, and a cooling portion 50.

The adsorbent particles 20 are spherical or granular, and the material thereof may be, but not limited to, hydrophilic or water-soluble zeolite, activated carbon, activated alumina, tannin or other materials having adsorption activity to the VOC to be treated, wherein the hydrophilic zeolite is, for example, A type, 13X type or low bismuth aluminum ratio Y type zeolite, the special aqueous zeolite is, for example, ZSM-5 type, MCM type (Mobil composite of matter) or high bismuth aluminum ratio Y type zeolite, and the MCM type zeolite may be, for example, M41S group zeolite such as MCM-41 with hexagonal hexagonal structure, MCM-48 with cubic structure, MCM-50 with lamellar structure. For example, the adsorbent particles 20 may be a GBAC ψ 0.72 mm indigo-based spherical activated carbon sold by Japan Wu Yu Co., Ltd. or a spherical adsorbent sold by the Dow Chemical Company under the model number DOWEX OPTIPORE V503. grain.

The inflow dispersion portion 30 has a feed port 31 for connection to an external adsorption particle transport device, a dispersion portion outlet 32 at the bottom thereof and lower than the feed port 31, and an overflow pipe 33. The inflow dispersion portion 30 serves to allow the adsorption particles 20 to be deposited and dispersed therein, and to prevent the desorption gas from passing through the inflow dispersion portion 30. The overflow pipe 33 is disposed at a position lower than the feed port 31 but higher than the dispersion portion outlet 32, which can be used to allow the adsorbent particles accumulated up to the height of the overflow pipe 33 to exit the inflow dispersion portion 30, thereby controlling subsequent entry desorption The flow rate of the adsorption particles 20 of the portion 40.

The desorption portion 40 has a desorption gas inlet 41, a desorption gas outlet 42, a desorption portion inlet 43, and a desorption portion outlet 44. The desorption gas inlet 41 and the desorption portion outlet 44 are disposed at a lower position than the desorption portion 40. The gas outlet 42 and the desorption portion inlet 43 are provided, and the desorption portion inlet 43 communicates with the dispersion portion outlet 32. Further, the desorption portion 40 further has a desorption gas dispersion plate 45 and a plurality of desorption porous plates 46 which are spaced apart from the desorption gas dispersion plate 45 in the height direction of the vertical tank body 10 Between the gas outlets 42, the desorbed gas dispersion plate 45 and the desorbed porous plate 46 have a plurality of pores dispersed at different positions in the horizontal direction, and the pore diameter of each pore is not larger than the particle diameter of the adsorption particles 20, so that the desorption gas is as Evenly dispersed in different positions in the desorption portion 40, each of the desorption porous plates 46 has a plurality of pores and a lower portion 47, and the lower portions 47 of the adjacent layer desorption perforated plates 46 are not opposite each other, and the lower portion 47 has One or more openings 471 having a larger diameter than the particle size of the adsorbent particles 20, allowing the adsorbent particles 20 to fall through the lower portion 47 to the next layer space, and the desorption portion outlet 44 being disposed on the desorbed gas dispersion plate 45, and the desorption portion outlet 44 may be provided at the center or the periphery of the desorbed gas dispersion plate 45.

The desorption portion 40 can be used to allow the adsorption particles 20 to enter through the desorption portion inlet 43 one after another, and the space between the desorption porous plates 46 fluidizes and floats and falls back, and can be greatly increased in addition to uniform desorption. The desorption time of the adsorbed particles 20 in contact with the desorbed gas in the tower (the longer the desorption time is, the better the desorption effect), and then the desorption portion 40 is successively separated via the outlet portion 44 of the desorption portion. The desorption portion 40 can also be used to allow a desorption gas to enter via the desorption gas inlet 41 and flow upward through the gas holes in the gas dispersion plate 45 and the desorption perforated plate 46, and then discharge the desorption portion 40 via the desorption gas outlet 42. .

The desorption gas may be, for example, nitrogen or air; when the fluidization desorption device is at a high concentration ratio, it is preferred to use nitrogen as the desorption gas to avoid the danger of the heat desorption treatment. When the fluidized desorption device is low concentration ratio (less than 500 times), air can be used as the desorption gas, and the VOC concentration after desorption is measured by the concentration detector immediately to ensure that the concentration is controlled by the explosion of VOC. The lower limit value (LEL value) is operated below, for example, the desorption operation is performed below the quarter lower limit concentration.

The cooling portion 50 is in communication with a desorption outlet 44 having one or more cooling fluid flow passages 51 and one or more adsorption pellet cooling passages 52, wherein the adsorption pellet cooling passages 52 communicate with the desorption outlets 44, the cooling fluid flow passages 51. It is disposed around the adsorption particle cooling passage 52 but does not communicate with the adsorption particle cooling passage 52, and allows the cooling fluid in the cooling fluid flow path 51 to exchange heat with the adsorption particles in the adsorption particle cooling passage 52, thereby lowering the temperature of the adsorption particles. For example, the cooling portion 50 may be a shell-and-tube heat exchanger, the tube side is the adsorption particle cooling passage, and the shell side is a cooling fluid flow passage, and a cooling fluid (such as cold air or low-temperature water, etc.) may be circulated.

Please refer to FIG. 2B, which is a second embodiment of the present fluidization desorption device, which differs from the previous embodiment in that the gas dispersion plate 45 is inclined from one side of the upright trough 10 to the other side. The adsorbent particle cooling passage 52 is narrower than the lower one. In addition, the groove of the inflow dispersion portion 30 is changed to a groove 30A having a reversed cross section, and the adsorption particles 20 are accumulated in the inverted groove 30A, and when the accumulation height exceeds the inverted groove wall, it will fall to The desorption portion 40; in other words, the open space of the periphery of the inverted trough wall can be regarded as the boundary between the dispersion portion outlet 32 and the desorption portion inlet 43; thereby, the volume of the inflow dispersion portion 30 can be further reduced, thereby further reducing the adsorption particles 20 The amount of use. In a possible embodiment, the inverted trough 30A has pores through which desorbed gas can pass.

Since the adsorbed particles in the desorption portion of the present invention can be fluidized by the desorption gas of the upward flow, the density of the adsorbed particles in the desorption portion is remarkably lower than that of the conventional fluidized desorption tower, and the amount of adsorbed particles can be greatly reduced, and Reduce the cost of fluidized desorption devices.

Referring to FIG. 3, the first embodiment of the present invention is a fluidized adsorption and desorption concentrating unit, which comprises a fluidized adsorption tower 100 and an adsorbent particle in addition to the fluidization desorption device. Conveying device 110.

The fluidized adsorption column 100 has a gas inlet 101 to be treated, a treated gas outlet 102, an adsorption particle inlet 103, and an adsorption particle outlet 104. The position where the gas inlet 101 to be treated and the adsorption particle outlet 104 are disposed is lower than the treated gas outlet 102 and the adsorption particle inlet 103. In addition, the fluidized adsorption tower 100 further has a gas dispersion plate 105 to be treated and a multi-layer adsorption porous plate 106. The gas dispersion plate 105 to be treated is adjacent to the gas inlet 101 to be treated, and the adsorption porous plate 106 is at the height of the fluidization adsorption column 100. The direction is spaced between the gas dispersion plate 105 to be treated and the treated gas outlet 102.

The fluidized adsorption column 100 is configured to allow the adsorbent particles to enter through the adsorption particle inlet 103 successively, and to fall back and forth between the adsorption porous plates 106, and then exit the fluidized adsorption column 100 via the adsorption particle output port 104. In addition, the fluidized adsorption tower 100 is further configured to allow a gas to be treated to enter through the gas inlet 101 to be treated, and flow upward through the pores in the gas dispersion plate 105 to be treated and the adsorption porous plates 106, and then through the treated gas outlet. 102 exits the fluidized adsorption column 100.

The adsorption granule conveying device 110 is connected to the fluidized adsorption tower 100 and the fluidized desorption device 120 for conveying the adsorbed particles processed by the fluidized desorption device 120 to the adsorption granule input port 103 and used for the self-adsorption granule output port. The leaving adsorbent particles are transported to the feed port 131, and may also be used to transport the adsorbent particles exiting the overflow pipe 133 to the upstream of the adsorbent particle output port 104 in the fluidized adsorption column 100. In the present embodiment, the adsorption particle conveying device 110 includes a plurality of conveyors 111a, 111b, 112a, 112b, a conveying gas source 113, and a plurality of pipes 114a, 114b, 114c, 115a, 115b, 115c, 116. Among them, the pipes 114a, 114b, and 114c are provided with conveyors 111a and 111b for conveying the adsorbed particles of the VCO adsorbed in the fluidized adsorption column 100 to the feed port 131 of the fluidized desorption device 120. The conduits 115a, 115b, 115c are provided with conveyors 112a, 112b for conveying the adsorbent particles desorbed and regenerated by the fluidized desorption device 120 to the adsorption particle inlet 103 of the fluidized adsorption column 100, while the line 116 Then, the adsorbent particles for discharging the overflow pipe 133 are gravity-fed to the upstream of the adsorbent particle output port 104 in the fluidized adsorption column 100, thereby forming a circulation loop of the adsorbed particles, and the transport gas source 113 is used for sending and transporting. The air or nitrogen required for the operation of the devices 111a, 111b, 112a, 112b pushes the adsorbent particles upward. In other possible embodiments, the adsorbent particles discharged from the overflow pipe 133 may also be transported to the pipes 114a, 114b, 114c, 115a, 115b or 115c, and an additional conveyor may be added for transportation if necessary.

Thereby, the VOC in the gas to be treated can be adsorbed by the adsorbed particles in the fluidized adsorption column, so that the VOC concentration in the treated gas is greatly reduced. After adsorbing VOC in the fluidized adsorption tower, the adsorbent particles are transported to the fluidized desorption device by the adsorption particle transport device for desorption regeneration, and then can be transported to the fluidized adsorption tower for recycling by the adsorption particle transport device. The desorbed gas desorbs the VOC adsorbed by the adsorbed particles in the fluidized desorption device, so that the desorbed gas contains a higher concentration of VOC to achieve a concentration effect, which can be further post-treated by other post-processing units.

Please refer to FIG. 4 , which is a second embodiment of the fluidized adsorption and desorption concentrating unit of the present invention, which is substantially the same as the embodiment shown in FIG. 3 , and the difference is that the adsorption particle output port 204 is The height is higher than the height of the feed port 231, so that it can be naturally dropped by the pipe 211 by gravity, and the present embodiment can omit two conveyors compared to the foregoing embodiment.

In other possible embodiments, the relative positions of the fluidized adsorption tower and the fluidized desorption device may be changed, and the piping and the conveyor configuration of the adsorption granular conveying device may also have corresponding adjustment changes.

Please refer to FIG. 5 , which is a first embodiment of the inventive exhaust gas purification system, which includes a fluidized absorption and desorption concentration unit as shown in FIG. 3 and a post-processing unit 360, and a post-processing unit 360. The desorbed gas outlet 342 is connected and used to post-treat the desorbed gas discharged from the desorbed gas outlet 342. In this embodiment, the post-processing unit 360 is a Regenerative Thermal Oxidizer (RTO), which includes a combustion chamber 361, two heat storage tanks 362a, 362b, a gas flow control device 363, a heating device 364, and a heat. The exchange unit 365, the heat storage tanks 362a, 362b communicate with the combustion chamber 361, and the heat storage tanks 362a, 362b are filled with a heat storage material, which may be, but not limited to, alumina ceramic (Alumina Oxide Porcelain), porous mullite (Mullite) ), cordierite, porous cordierite and other regenerable ceramic or gravel. The heating device 364 includes a burner 3641 and a temperature controller 3642. The burner 3641 is disposed in the combustion chamber 361 for generating a combustion flame. The temperature controller 3642 is configured to control the burner 3641 to adjust the temperature in the combustion chamber 361. The airflow control device 363 is configured to switch the flow path of the desorbed gas, selectively introduce the desorbed gas into one of the regenerators 362a, 362b, and heat the desorbed gas first, and then desorb the gas through the combustion chamber 361, which contains The VOC is incinerated, the incineration tail gas then enters another heat storage tank 362a, 362b, heat exchanges the incineration tail gas with the heat storage material in the heat storage tank, and the temperature of the heat storage material is increased, and the incineration tail gas is then discharged to the heat exchange via the flow control device 363. The unit 365 exchanges heat with a desorbed gas that is about to enter the fluidized desorption device 330. Preferably, after the heat exchange, the desorbed gas is heated to 100-250 ° C to facilitate subsequent removal of the adsorbed particles. Attached to regeneration.

Please refer to FIG. 6 , which is a second embodiment of the inventive exhaust gas purification system, which is substantially the same as the embodiment shown in FIG. 5 , and the post-processing unit 460 is also a regenerative incinerator. The regenerative incinerator includes an electrothermal heating unit 464, and the heat exchange unit 465 is disposed in the combustion chamber 461. The electrothermal heating unit 464 includes two electrothermal heaters 4641, 4642, and an electric heater 4641. 4642 is disposed in the combustion chamber 461 and is respectively located at two sides of the heat exchange unit 465. The heat exchange unit 465 has an intake pipe 4651 and an air outlet pipe 4652. The desorption gas entering the fluidization desorption device 430 can pass through the intake pipe. 4651 is exchanged with hot air within the combustion chamber 461 within the heat exchange unit 465, and then discharged through the gas outlet tube 4652 and directed to the fluidization desorption device 430. In addition to this, the cold air as the cooling fluid is introduced into the heat exchange unit 465 as the desorbed gas after the heat exchange between the cooling portion 450 and the adsorbent particles, thereby performing secondary heat exchange.

Please refer to FIG. 7 , which is a third embodiment of the inventive exhaust gas purification system, which includes a fluidized absorption and desorption concentration unit as shown in FIG. 3 and a post-processing unit 560 , and a post-processing unit 560 . The desorbed gas outlet 542 is connected and used to post-treat the desorbed gas discharged from the desorbed gas outlet 542. In this embodiment, the aftertreatment unit 560 is a constant-fired incinerator, and the direct-fired incinerator includes a first heat exchange unit 561, a combustion chamber 562, and a second heat exchange unit 563, and a self-desorption gas outlet. The desorbed gas discharged from 542 is preheated by the first heat exchange unit 561, and then introduced into the combustion chamber 562 for incineration treatment. The incineration tail gas first flows through the first heat exchange unit 561 to exchange heat with the desorbed gas, and then leads to the second heat. The exchange unit 563 exchanges heat with another fluid, and then the other fluid after the heat exchange can be heated to 100-250 ° C and can enter the fluidized desorption device 530 as a desorbed gas. In this embodiment, the exhaust gas purification system further includes a pre-processing device 570, which may include a filtering device, a dehumidifying device, a temperature control device, or a combination thereof, for pre-processing such as filtration, temperature control, dehumidification, and the like of the gas to be treated.

In other possible embodiments, the aftertreatment unit may also be a recovery direct incinerator (Recovererative Thermal Oxidizer), which includes a heat exchanger casing and several heat exchanges in addition to the combustion chamber. The tube module allows the incineration off-gas to exchange heat with other fluids including, but not limited to, desorbed gases.

Please refer to FIG. 8 , which is a fourth embodiment of the inventive exhaust gas purification system, which is partially the same as the embodiment shown in FIG. 7 , except that the pre-processing device 670 is a concentrated revolver. The concentration runner includes an adsorption zone, a desorption zone, and a cooling isolation zone. The VOC-containing exhaust gas is adsorbed in the adsorption zone of the concentration runner, and then introduced into the fluidization adsorption tower 610 as a gas to be treated. The other desorbing gas of the runner is sequentially directed to the cooling isolation zone and the desorption zone of the concentrated rotor, and the rotor is desorbed in the desorption zone to become a desorbed tail gas containing concentrated VOC. After the desorption gas discharged from the fluidization desorption device 630 is combined, the combustion chamber of the direct combustion incinerator is incinerated, and the incineration exhaust gas is exchanged with other fluids through a plurality of heat exchange units, respectively, including the subsequent fluid. The desorption gas of the desorption device 630 is degraded. In this embodiment, the concentration ratio of the concentration runner can be 5-30 times, and the concentration ratio of the fluidized adsorption desorption concentration unit can be 50-500 times. On the other hand, the exhaust gas after the concentrated rotor desorption process can be partially recovered to the front end process zone 690 for use in the front end process (e.g., the coating process).

Please refer to FIG. 9 , which is a fourth embodiment of the inventive exhaust gas purification system, which is substantially the same as the embodiment shown in FIG. 8 , except that the desorption from the desorption gas outlet 742 is discharged. The gas is changed to the adsorption zone of the concentrating runner for post-treatment. At this time, the concentrating runner is used as a post-processing device in addition to the pre-processing equipment. Preferably, the residual temperature of the desorbed gas discharged from the desorbed gas outlet 742 is only 50-150 °C.

Please refer to FIG. 10, which is a fourth embodiment of the inventive exhaust gas purification system, which is substantially the same as the embodiment shown in FIG. 9 except that the desorption from the desorption gas outlet 842 is discharged. The residual temperature of the gas may be between 100 and 200 ° C. In order to prevent the temperature from being too high, the operation of the adsorption zone of the concentrated rotor is affected. The desorbed gas is cooled to about 25-50 ° C through a cooler 880 before being introduced into the concentration. Runner.

In other possible embodiments, the post-processing unit may be a post-processing of the VOC by a processing device other than the incinerator and the concentration reel. For example, the post-processing unit may also be a condenser for condensing the VOC in the desorption device. Recycling; for example, the post-processing unit may be a catalyst conversion device.

Finally, it must be stated that the constituent elements disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention. Alternatives or variations of other equivalent elements should also be applied for in this case. Covered by the scope. In addition, the dimensional ratios between the various elements shown in the drawings are only schematic, and the actual size ratio of each element is not limited to the one shown in the drawings.

1‧‧‧De-heating department

2‧‧‧The cooling department

3‧‧‧ Storage section

10‧‧‧Upright trough

20‧‧‧Adsorption particles

30‧‧‧Inflow and Dispersal Department

30A‧‧‧ slots

31‧‧‧ Feed inlet

32‧‧‧Distribution Department Export

33‧‧‧Overflow tube

40‧‧‧Detaining Department

41‧‧‧Desorption gas inlet

42‧‧‧Desorbed gas outlet

43‧‧‧Departure entrance

44‧‧‧Deportation exit

45‧‧‧Dissociated gas dispersion plate

46‧‧‧Desorbed porous plate

47‧‧‧ Lower part

471‧‧‧ openings

50‧‧‧ Cooling Department

51‧‧‧Cooling fluid flow path

52‧‧‧Adsorption particle cooling channel

100‧‧‧ Fluidized adsorption tower

101‧‧‧ gas inlet to be treated

102‧‧‧Processed gas outlet

103‧‧‧Adsorption particle input

104‧‧‧Adsorption particle outlet

105‧‧‧ gas dispersion plate to be treated

106‧‧‧Adsorption porous plate

110‧‧‧Adsorption pellet conveyor

111a, 111b, 112a, 112b‧‧‧ conveyor

113‧‧‧Conveying gas source

114a, 114b, 114c, 115a, 115b, 115c, 116‧‧‧ pipeline

120‧‧‧ Fluidized desorption device

131‧‧‧ Feed inlet

133‧‧‧Overflow tube

204‧‧‧Adsorption particle outlet

231‧‧‧ Feed inlet

211‧‧‧ pipeline

330‧‧‧ Fluidized desorption device

342‧‧‧Desorbed gas outlet

360‧‧‧post processing unit

361‧‧‧ combustion chamber

362a, 362b‧‧‧ heat storage tank

363‧‧‧Airflow control equipment

364‧‧‧heating equipment

3641‧‧‧ burner

3642‧‧‧temperature controller

365‧‧‧Heat exchange unit

430‧‧‧ Fluidized desorption device

450‧‧‧The cooling department

460‧‧‧post processing unit

461‧‧‧ combustion chamber

464‧‧‧Electrical heating unit

4641, 4642‧‧‧Electrical heater

465‧‧‧Heat exchange unit

4651‧‧‧Intake pipe

4652‧‧‧Exhaust pipe

530‧‧‧ Fluidized desorption device

542‧‧‧Desorbed gas outlet

560‧‧‧post processing unit

561‧‧‧First heat exchange unit

562‧‧‧ combustion chamber

563‧‧‧Second heat exchange unit

570‧‧‧Pre-treatment equipment

610‧‧‧ Fluidized adsorption tower

630‧‧‧ Fluidized desorption device

670‧‧‧Pre-treatment equipment

690‧‧‧ front-end process area

742‧‧‧Desorbed gas outlet

842‧‧‧Desorbed gas outlet

880‧‧‧cooler

Figure 1 is a schematic diagram of a conventional mobile desorption column.

Fig. 2A is a schematic view showing the first embodiment of the fluidizing desorption device of the present invention.

2B is a schematic view of a second embodiment of the fluidizing desorption apparatus of the present invention.

Fig. 3 is a schematic view showing the first embodiment of the fluidizing absorption and desorption concentrating unit of the present invention.

Fig. 4 is a schematic view showing a second embodiment of the fluidizing absorption and desorption concentrating unit of the present invention.

Figure 5 is a schematic view of the first embodiment of the inventive exhaust gas purification system.

Figure 6 is a schematic view of a second embodiment of the inventive exhaust gas purification system.

Figure 7 is a schematic view of a third embodiment of the inventive exhaust gas purification system.

Figure 8 is a schematic view of a fourth embodiment of the inventive exhaust gas purification system.

Figure 9 is a schematic view of a fifth embodiment of the inventive exhaust gas purification system.

Figure 10 is a schematic view of a sixth embodiment of the inventive exhaust gas purification system.

Claims (10)

A fluidized desorption device comprises an upright trough body, wherein the upright trough body is provided with a plurality of adsorbing particles, the upright trough body comprising: an inflow dispersing portion having an inflow and dispersing portion a feed inlet, the inflow dispersion portion is configured to disperse and disperse the adsorption particles, and the inflow dispersion portion has a dispersion outlet located below the feed port for allowing the adsorption particles in the dispersion portion to continuously exit the inflow a desorption portion having a desorption gas inlet, a desorption gas outlet, a desorption portion inlet, and a desorption portion outlet, the desorption gas inlet and the adsorption portion outlet being lower than the desorption gas outlet And the desorption portion inlet, the desorption portion inlet is connected to the dispersion portion outlet, the desorption portion further has a desorption gas dispersion plate and a plurality of desorption porous plates, wherein the desorption porous plates are in the upright trough a height direction is disposed between the desorption gas dispersion plate and the desorption gas outlet, and the desorption portion outlet is disposed on the desorption gas dispersion plate; the desorption portion is configured to make the adsorption particles successively pass through the desorption Entrance to the annex, The space between the desorbed porous plates is dropped back and then exits the desorption portion through the outlet of the desorption portion; the desorption portion is further configured to allow a desorption gas to enter through the desorption gas inlet and pass through The gas dispersion plate and the pores in the desorbed porous plate flow upward, and then the desorption portion is discharged through the desorption gas outlet; and a cooling portion is connected to the desorption outlet for cooling the adsorbed particles passing therethrough. The fluidized desorption device of claim 1, wherein the inflow dispersion portion further has an overflow pipe that is lower than the feed port but higher than the outlet of the dispersion portion, the overflow pipe is used for stacking The adsorbent particles up to the height of the overflow pipe exit the inflow dispersion. The fluidized desorption apparatus according to claim 1, wherein the cooling portion has at least one cooling fluid flow path and at least one adsorption particle cooling passage, the adsorption particle cooling passage is connected to the desorption outlet, and the cooling fluid flow path is set Around the adsorption particle cooling channel but not in communication with the adsorption particle cooling channel. The fluidized desorption apparatus according to claim 1, wherein each of the desorbed porous plates has a lower portion having at least one opening having a pore diameter larger than a particle diameter of the adsorbed particles. The fluidized desorption apparatus according to claim 4, wherein the lower portion of each of the desorbed porous plates does not deviate from the adjacent layer to the lower portion of the perforated plate. A fluidized absorption and desorption concentration unit comprising: a fluidization desorption device according to any one of claims 1 to 3; 5; a fluidization adsorption column having a gas inlet to be treated and a treated gas An outlet, an adsorption particle inlet and an adsorption particle outlet, the gas inlet to be treated and the adsorption particle outlet are lower than the treated gas outlet and the adsorption particle inlet, and the fluidized adsorption tower has a gas dispersion to be treated. a plate and a multi-layer adsorption porous plate, the gas dispersion plate to be treated is adjacent to the gas inlet to be treated, and the adsorption porous plates are spaced apart from the gas dispersion plate to be treated and the treated gas outlet at a height direction of the fluidization adsorption column The fluidized adsorption tower is configured to allow the adsorption particles to enter through the adsorption particle inlet port, and to fall back and forth between the adsorption porous plates, and then exit the fluidization adsorption through the adsorption particle output port. a fluidization adsorption tower is further configured to allow a gas to be treated to enter through the gas inlet to be treated, and pass through the gas dispersion plate to be treated and the adsorption porous plates The pores flow upward, and then exit the fluidization adsorption tower through the treated gas outlet; and an adsorption particle delivery device is connected to the fluidization adsorption column and the fluidization desorption device for treating the fluidization desorption device The adsorbent particles are transported to the adsorbent particle inlet and used to deliver the adsorbent particles exiting the adsorbent particle outlet to the feed port. The fluidized absorption and desorption concentration unit according to claim 6, wherein the inflow dispersion portion further has an overflow pipe, the overflow pipe being lower than the feed port but higher than the outlet of the dispersion portion, wherein the overflow pipe is used for The adsorbent particles deposited up to the height of the overflow pipe are allowed to exit the inflow dispersion. The fluidized adsorption and desorption concentration unit according to claim 7, wherein the adsorption particle delivery device is further configured to transport the adsorption particles leaving the overflow pipe to the fluidization adsorption tower adjacent to the adsorption particle output port. Upstream. An exhaust gas purification system comprising: the fluidized absorption and desorption concentration unit of claim 6, and a post-processing unit coupled to the desorption gas outlet for desorbing the desorption gas outlet The gas is post-treated. The exhaust gas purification system according to claim 9, further comprising a heat exchanger, wherein the aftertreatment unit is an incineration unit for incinerating the desorbed gas discharged from the desorption gas outlet by the desorption gas and generating An incineration tail gas is used to exchange heat between the incineration tail gas and the desorbed gas that is about to enter the desorption portion.