CN212369752U - Ultralow discharging equipment is retrieved in absorption of well high concentration organic waste gas - Google Patents
Ultralow discharging equipment is retrieved in absorption of well high concentration organic waste gas Download PDFInfo
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- CN212369752U CN212369752U CN202020808427.5U CN202020808427U CN212369752U CN 212369752 U CN212369752 U CN 212369752U CN 202020808427 U CN202020808427 U CN 202020808427U CN 212369752 U CN212369752 U CN 212369752U
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Abstract
The utility model relates to an ultralow discharging equipment for adsorbing and recovering middle and high concentration organic waste gas, a filter, a carbon fiber groove air inlet fan and a carbon fiber adsorption groove are connected in sequence, the carbon fiber adsorption groove is connected with a drying fan, the carbon fiber adsorption groove is connected with a condenser, the condenser is connected with a solvent separator, the carbon fiber adsorption groove is connected with a demister, a rotary drum adsorption fan, a rotary drum concentration device and a chimney in sequence, the rotary drum concentration device is connected with a rotary drum desorption fan, and the rotary drum desorption fan is connected with a rotary drum desorption heat exchanger; the carbon fiber adsorption tank, the condenser, the solvent separator and the rotary drum desorption heat exchanger are provided with discharge ports. The utility model discloses it is few, the operation energy consumption is low, ultralow emission, realization waste gas resource utilization to have the adsorbing material dress volume.
Description
Technical Field
The utility model relates to a waste gas treatment equipment technical field, especially a middle and high concentration organic waste gas adsorbs retrieves ultra-low discharging equipment with adsorbing material dress volume is few, the operation energy consumption is low, ultralow emission, realization waste gas resource utilization.
Background
The VOCs organic waste gas treatment field is TO the treatment of high concentration waste gas operating mode generally adopting the incineration method, including directly burn (TO), catalytic incineration (CO), heat accumulation incineration (RTO) etc. technique, this kind of technique has wide, the high advantage of treatment effeciency of application scope, but also has the carbon emission volume big, equipment high temperature operation, arranges that the place is limited, discharges and has defects such as secondary pollution. Recently, with the national propositions of building resource-friendly and environment-friendly society and the propositions of limiting the carbon emission index of enterprises, a great amount of high-concentration organic waste gas treated by adopting incineration technology is reviewed again.
At present, the adsorption recovery method for treating organic waste gas is developed in China to a certain extent, but reports of treating high-concentration organic waste gas by adopting the adsorption recovery method are less. The invention patent with the application patent number of CN 201210299494 provides a method for treating low-concentration organic waste gas by switching a multi-stage activated carbon adsorption tank, which better solves the problem of organic recovery of medium and low concentration, but also has the problems of large loading capacity of an adsorption material, high operation energy consumption, limited treatment efficiency and easily overproof tail gas emission. The invention patent with application patent number CN 109731433A provides a method for adsorbing ethyl acetate by connecting a plurality of activated carbon adsorption tanks and a zeolite rotating wheel in series and using nitrogen for desorption and recovery, and the method provides an improvement on the mode of the patent CN 201210299494, further improves the treatment efficiency of the system, can be used for treating waste gas with medium and high concentration, and still has the problems of large loading capacity of an adsorption material, high operation energy consumption and limited treatment efficiency.
The ultralow emission device for adsorbing and recycling the medium and high concentration organic waste gas is required to have the advantages of small loading of the adsorbing material, low operation energy consumption, ultralow emission and realization of resource utilization of the waste gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a well high concentration organic waste gas adsorbs retrieves ultralow discharging equipment with adsorbing material dress volume is few, the operation energy consumption is low, ultralow emission, realization waste gas resource utilization.
An ultralow discharging device for adsorbing and recovering middle-high concentration organic waste gas comprises:
the carbon fiber adsorption tank is connected with the drying fan, the carbon fiber adsorption tank is connected with the condenser, the condenser is connected with the solvent separator, the carbon fiber adsorption tank is connected with the demister, the rotary drum adsorption fan, the rotary drum concentration device and the chimney in sequence, the rotary drum concentration device is connected with the rotary drum desorption fan, and the rotary drum desorption fan is connected with the rotary drum desorption heat exchanger;
the carbon fiber adsorption tank, the condenser, the solvent separator and the rotary drum desorption heat exchanger are provided with discharge ports.
The carbon fiber adsorption tanks are 3 tanks, two are adsorption tanks, and one is a desorption tank.
And a discharge port of the carbon fiber adsorption tank is connected with a rotary drum concentration device.
And the discharge ports of the condenser and the solvent separator are connected with a carbon fiber adsorption tank.
And the drying fan is connected with the carbon fiber adsorption tank and then connected with the demister.
The utility model discloses filter, carbon fiber groove air intake fan and carbon fiber adsorption tank connect gradually, and carbon fiber adsorption tank and drying fan are connected, and carbon fiber adsorption tank and condenser are connected, and condenser and solvent separator are connected, and carbon fiber adsorption tank connects gradually defroster, rotary drum adsorption fan, rotary drum enrichment facility and chimney, and rotary drum enrichment facility and rotary drum desorption fan are connected, and rotary drum desorption fan and rotary drum desorption heat exchanger are connected; the carbon fiber adsorption tank, the condenser, the solvent separator and the rotary drum desorption heat exchanger are provided with discharge ports. The utility model discloses it is few, the operation energy consumption is low, ultralow emission, realization waste gas resource utilization to have the adsorbing material dress volume.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. the device comprises a filter, 2, a carbon fiber tank air inlet fan, 3, a drying fan, 4, a carbon fiber adsorption tank, 5, a condenser, 6, a solvent separator, 7, a demister, 8, a rotary drum adsorption fan, 9, a rotary drum concentration device, 10, a rotary drum desorption fan, 11, a rotary drum desorption heat exchanger, 12 and a chimney.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
An ultralow discharging device for adsorbing and recovering middle-high concentration organic waste gas comprises: the device comprises a filter 1, a carbon fiber tank air inlet fan 2 and a carbon fiber adsorption tank 4 which are sequentially connected, wherein the carbon fiber adsorption tank 4 is connected with a drying fan 3, the carbon fiber adsorption tank 4 is connected with a condenser 5, the condenser 5 is connected with a solvent separator 6, the carbon fiber adsorption tank 4 is sequentially connected with a demister 7, a rotary drum adsorption fan 8, a rotary drum concentration device 9 and a chimney 12, the rotary drum concentration device 9 is connected with a rotary drum desorption fan 10, and the rotary drum desorption fan 10 is connected with a rotary drum desorption heat exchanger 11; the carbon fiber adsorption tank 4, the condenser 5, the solvent separator 6 and the rotary drum desorption heat exchanger 11 are provided with discharge ports.
The carbon fiber adsorption tank 4 is 3 tanks, two are adsorption tanks, and one is a desorption tank. The discharge port of the carbon fiber adsorption tank 4 is connected with a rotary drum concentration device 9. The carbon fiber adsorption tank 4 is connected to the discharge ports of the condenser 5 and the solvent separator 6. The drying fan 3 is connected with the carbon fiber adsorption tank 4 and then connected with the demister 7.
The system of the utility model comprises an adsorption recovery unit and an ultra-low discharge unit, wherein the adsorption recovery unit comprises a filter 1, a carbon fiber tank air inlet fan 2 and a carbon fiber adsorption tank 4 which are connected in sequence by pipelines; the adsorption recovery unit further comprises a condenser 5, a solvent separator 6 and a drying fan 3. An inlet of the condenser 5 is connected with a desorption outlet of the carbon fiber tank 4, and an outlet of the condenser is connected with an inlet of the solvent separator 6; an inlet of the solvent separator 6 is connected with an outlet of the condenser 5; the inlet of the drying fan 3 is connected with the fresh air, and the outlet of the drying fan is connected with the inlet of the carbon fiber groove 4. The ultra-low discharge unit comprises a demister 7, a rotary drum adsorption fan 8, a rotary drum concentration device 9 and a chimney 12 which are sequentially connected through a pipeline; the ultra-low discharge unit also comprises a rotary drum desorption fan 10 and a rotary drum desorption heat exchanger 11. An inlet of a rotary drum desorption fan 10 is connected with a desorption outlet of the rotary drum concentration device 9, and an outlet of the rotary drum desorption fan is connected with a rotary drum desorption heat exchanger 11; 11 cold side imports of rotary drum desorption heat exchanger link to each other with desorption fan 10 export, and the export links to each other with the 9 desorption districts of rotary drum, and the hot side then links to each other with desorption heat supply steam.
The carbon fiber adsorption tank 4 is internally provided with an adsorption material made of carbon fiber.
The carbon fiber adsorption tank 4 is designed into 3 tanks, and 2 tanks adsorb 1 tank and then dry during work, and the circulation is carried out according to the desorption.
The number of the drum concentration devices 9 in series is not limited to 1 set, and the configured number depends on the initial concentration of the waste gas and the emission requirement; the adsorption material in the drum concentrating device 9 is zeolite, which is a novel moving bed adsorption concentrating device different from a zeolite rotating wheel. Structurally, the rotary drum concentration device only has two subareas, namely an adsorption area and a desorption area, and does not have a cooling area; the material upper drum concentrating device adopts built-in zeolite modules, the zeolite content of each module is up to more than 75%, and low specific heat capacity zeolite is adopted as a load material. The application result shows that the rotary drum concentration device has higher adsorption efficiency which can reach 98 percent at most, and has better concentration capability on the organic waste gas with the same parameters, and the concentration capability is about 1.5 to 2 times of that of the same rotary wheel.
The purified tail gas at the outlet of the carbon fiber adsorption tank 4 is sent to the rotary drum concentration device 9 for re-adsorption, and the concentrated tail gas after desorption is sent to the carbon fiber tank for adsorption again.
The noncondensable gas generated by the condenser 5 and the volatile gas generated by the solvent separator 6 are sent to the carbon fiber adsorption tank 4 to be adsorbed again.
The drying fan 3 blows the blowing gas generated by the drying adsorption tank 4 by fresh air, removes the brought water vapor through the demister 7, and then sends the water vapor into the rotary drum concentration device for re-adsorption.
The rotary drum desorption heat exchanger 11 and the carbon fiber adsorption tank 4, and the desorption heat source is low-pressure hot steam.
And a cold source used by the condenser 5 is circulating water or cooling water.
A demister 7 is also connected between the adsorption recovery unit and the ultra-low discharge unit.
The utility model discloses a data analysis and automatic control are accomplished through data monitoring such as the temperature to the system, pressure to the system adoption PLC program.
The utility model discloses the concrete method of system includes following step:
the medium-high concentration organic waste gas is pretreated by a filter to remove particles contained in the waste gas and then is sent to an adsorption recovery unit. The filtering grade of the filter is determined according to the front-end waste gas working condition, and the filtering grade is not lower than F6 so as to protect the service life of the carbon fiber material and the zeolite material.
And the organic waste gas after filtration treatment is sent to the carbon fiber tank for adsorption through a carbon fiber tank air inlet fan, and the adsorbed waste gas is sent to the ultra-low emission unit. The carbon fiber adsorption tank is designed into 3 tanks, and 2 tanks adsorb 1 tank and then dry during work, and the circulation is carried out according to the desorption. When the carbon fiber tank is fully adsorbed, the carbon fiber tank is desorbed by low-pressure steam of more than 0.4Mpa, the desorbed high-concentration waste gas is cooled by a condenser, the refrigerant can be circulating water or cooling water, and the cooled solvent is separated and recovered in a solvent separator. In particular, the non-condensable gas generated by the condenser and the volatile gas generated by the solvent separator are sent to the carbon fiber adsorption tank for re-adsorption, so that the treatment efficiency of the system is improved.
Tail gas after primary adsorption of the carbon fiber grooves is sent to a rotary drum adsorption area for secondary adsorption and capture through a rotary drum adsorption fan so as to realize ultralow emission, and purified tail gas after adsorption is discharged along with a chimney; meanwhile, when the zeolite module adsorbing organic matters in the rotary drum is transferred to a desorption area, part of clean tail gas at the adsorption outlet of the rotary drum is pumped and heated to 180 ℃ through a heat exchanger, the zeolite module adsorbing the organic matters is desorbed in the desorption area of the rotary drum, and the desorbed concentrated waste gas is desorbed and recovered by a desorption recovery unit at 50-60 ℃, wherein the desorption heat exchanger of the rotary drum adopts low-pressure hot steam of more than 0.5 Mpa. In particular, the drum concentrator uses only adsorption and desorption zones, and the hot zone generated after desorption is cooled by the adsorbed fresh air of the inlet air.
The carbon fiber tank after desorption is purged by water vapor, and can enter the adsorption process again after being purged by fresh air through a drying fan. Particularly, the blowing gas generated by the drying fan is sent into the rotary drum concentration device for re-adsorption after passing through the demister so as to improve the purification efficiency of the system and avoid the peak value of the system discharge value.
The utility model discloses the system is earlier through the filter to waste gas preliminary treatment, gets rid of the particulate matter in the waste gas, adopts the carbon fiber groove to adsorb again and retrieves organic solvent, then adsorbs tail gas "seizure" with the rotary drum enrichment facility to the carbon fiber and adsorbs, has realized the ultralow emission of centering high concentration organic waste gas. This system is through the use to carbon fibre and concentrated rotary drum, and the very big degree reduced the loading capacity of adsorbing material and realized ultralow emission, and further, in the aspect of system design, through letting dry blowing tail gas defogging back advance the rotary drum "catch" and adsorb, avoided the appearance of tail gas emission peak value.
In conclusion, the system has the advantages of small loading capacity of the adsorbing materials, low operation energy consumption, resource recovery of waste gas, high purification efficiency and ultralow emission.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a middle and high concentration organic waste gas adsorbs retrieves ultralow discharging equipment which characterized in that includes:
the device comprises a filter (1), wherein the filter (1), a carbon fiber groove air inlet fan (2) and a carbon fiber adsorption groove (4) are sequentially connected, the carbon fiber adsorption groove (4) is connected with a drying fan (3), the carbon fiber adsorption groove (4) is connected with a condenser (5), the condenser (5) is connected with a solvent separator (6), the carbon fiber adsorption groove (4) is sequentially connected with a demister (7), a rotary drum adsorption fan (8), a rotary drum concentration device (9) and a chimney (12), the rotary drum concentration device (9) is connected with a rotary drum desorption fan (10), and the rotary drum desorption fan (10) is connected with a rotary drum desorption heat exchanger (11);
and the carbon fiber adsorption tank (4), the condenser (5), the solvent separator (6) and the rotary drum desorption heat exchanger (11) are provided with discharge ports.
2. The device for adsorbing, recovering and ultra-low discharging the middle-high concentration organic waste gas according to claim 1, wherein the carbon fiber adsorption tank (4) comprises 3 tanks, two tanks comprise an adsorption tank, and one tank comprises a desorption tank.
3. The device for adsorbing, recovering and ultralow discharging the medium and high concentration organic waste gas as recited in claim 1, wherein the discharge port of the carbon fiber adsorption tank (4) is connected with a rotary drum concentrating device (9).
4. The device for adsorbing, recovering and ultra-low discharging the middle-high concentration organic waste gas according to claim 1, wherein the discharge ports of the condenser (5) and the solvent separator (6) are connected with the carbon fiber adsorption tank (4).
5. The device for adsorbing, recovering and ultra-low discharging the middle-high concentration organic waste gas according to claim 1, wherein the drying fan (3) is connected with the carbon fiber adsorption tank (4) and then connected with the demister (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020808427.5U CN212369752U (en) | 2020-05-15 | 2020-05-15 | Ultralow discharging equipment is retrieved in absorption of well high concentration organic waste gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020808427.5U CN212369752U (en) | 2020-05-15 | 2020-05-15 | Ultralow discharging equipment is retrieved in absorption of well high concentration organic waste gas |
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| CN212369752U true CN212369752U (en) | 2021-01-19 |
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| CN202020808427.5U Active CN212369752U (en) | 2020-05-15 | 2020-05-15 | Ultralow discharging equipment is retrieved in absorption of well high concentration organic waste gas |
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Address after: 201615 room 1151, area C, 1st floor, no.11-19 (single), Lane 18, Ledu Road, Songjiang District, Shanghai Patentee after: Shanghai Zhanheng Environmental Protection Technology Co.,Ltd. Address before: 201615 room 1003, No.35, Lane 800, meijiabang Road, Songjiang District, Shanghai Patentee before: SHANGHAI ZHANHENG ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |