CN211159156U - Styrene waste gas molecular sieve processing apparatus - Google Patents
Styrene waste gas molecular sieve processing apparatus Download PDFInfo
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- CN211159156U CN211159156U CN201922101927.5U CN201922101927U CN211159156U CN 211159156 U CN211159156 U CN 211159156U CN 201922101927 U CN201922101927 U CN 201922101927U CN 211159156 U CN211159156 U CN 211159156U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a styrene waste gas molecular sieve treatment device, which comprises a short fiber filter, a catalytic fan, a molecular sieve absorber, a two-stage catalytic purifier and a waste heat recycling furnace; the short fiber filter is characterized in that one end of the short fiber filter is connected with an exhaust gas pipe, and the other end of the short fiber filter is respectively connected with a high-concentration exhaust gas pipe and a low-concentration exhaust gas pipe; the high-concentration waste gas pipe is connected with a catalytic fan; the catalytic fan is connected with the two-stage catalytic purifier through an air pipe; the two-stage catalytic purifier is connected with the waste heat recycling furnace through an air pipe; one end of the waste heat recycling furnace is connected with a tap water pipe, and the other end of the waste heat recycling furnace is connected with a hot water recycling pipe; the waste heat recycling furnace is connected with the chimney through an air pipe. The utility model discloses construct simply, convenient to use adsorbs can reduce the harm to the human body through using molecular sieve to styrene, reduces operation reduce cost.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a waste gas treatment device technical field specifically indicates a styrene waste gas molecular sieve processing apparatus.
[ background of the invention ]
Styrene is an important chemical unit in the industries of plastic production and the like, the application range and the dosage of the styrene are increasingly large, a large amount of styrene-containing waste gas is generated in the respiratory process of styrene road loading, wharf shipping and tank storage tanks in tank areas of refinery enterprises, and the discharge of the styrene-containing waste gas has great potential safety hazard to the ecological environment and human health. Styrene exhaust treatment device adsorbs styrene waste gas through active carbon among the prior art, but styrene can produce polymerization to active carbon, especially styrene polymerization after the heating on active carbon, leads to unable regeneration, but also can produce poisonous gas to lead to human poisoning, can not be to resources such as water recycle in the reprocessing process in addition, thereby increaseed manufacturing cost. Therefore, a molecular sieve treatment device for styrene waste gas is provided.
[ summary of the invention ]
The utility model aims at solving among the prior art styrene exhaust treatment device and adsorbing and discharging to styrene waste gas through the active carbon, through the megakaryolysis of styrene to active carbon, the active carbon can produce the problem more than the gas of poisoning to the human body and provide a styrene waste gas molecular sieve processing apparatus.
In order to achieve the above purpose, the utility model provides a following technical scheme: a molecular sieve treatment device for styrene waste gas comprises a short fiber filter, a catalytic fan, a molecular sieve adsorber, a two-stage catalytic purifier and a waste heat recycling furnace; the short fiber filter is characterized in that one end of the short fiber filter is connected with an exhaust gas pipe, and the other end of the short fiber filter is respectively connected with a high-concentration exhaust gas pipe and a low-concentration exhaust gas pipe; the high-concentration waste gas pipe is connected with a catalytic fan; the catalytic fan is connected with the two-stage catalytic purifier through a high-concentration waste gas pipe; the two-stage catalytic purifier is connected with the waste heat recycling furnace through an air pipe; one end of the waste heat recycling furnace is connected with a tap water pipe, and the other end of the waste heat recycling furnace is connected with a hot water recycling pipe; the waste heat recycling furnace is connected with the chimney through an exhaust pipe; the low-concentration air pipe is respectively connected with the air filter and the molecular sieve adsorber; the molecular sieve adsorber is connected with an adsorption fan through a second exhaust pipe; and the adsorption fan is connected with the chimney through a second exhaust pipe.
Preferably, a waste heat recovery pipe is connected between the two-stage catalytic purifier and the regeneration fan; a waste heat recovery pipe is connected between the regeneration fan and the molecular sieve activation device; the molecular sieve activating device is connected with the molecular sieve adsorber through a waste heat recovery pipe; the molecular sieve adsorber is connected with the two-stage catalytic purifier through a recovery gas pipe.
Preferably, the two-stage catalytic purifier comprises an air inlet, an air outlet, a box body and a regeneration air outlet; an air inlet and an air outlet are formed in the side edge of the box body; the top of the box body is provided with a regeneration air outlet and a lifting ring; a plurality of cabinets are arranged in the box body; a support frame is welded at the inner side edge of the cabinet; the drawer is arranged on the support frame; a catalyst is placed in the drawer; and a heating strip is arranged between the drawers.
Preferably, valves are arranged on the high-concentration waste gas pipe, the low-concentration waste gas pipe and the gas pipe.
The utility model has the advantages that: the device simple structure, convenient to use adsorbs can reduce the harm to the human body through using molecular sieve to styrene, reduces operation reduce cost.
[ description of the drawings ]
Fig. 1 is a schematic flow chart of the present invention.
Fig. 2 is a schematic structural diagram of the two-stage catalytic converter of the present invention.
Fig. 3 is a partial enlarged view of the position a of the present invention.
Illustration of the drawings: 1 short fiber filter; 2 an air filter; 3, a molecular sieve adsorber; 4, an adsorption fan; 5, a waste heat recycling furnace; 6, a chimney; 7 a molecular sieve activation device; 8, a regeneration fan; 9 two-stage catalytic purifiers; 901 an air inlet; 902 air outlet; 903 regenerating an air outlet pipe; 904 hanging rings; 905 a cabinet; 906 heating pipes; 907 a drawer; 908 a support frame; 909 a catalyst; 910, a box body; 10 a catalytic fan; 11 a high concentration exhaust gas pipe; 12 a low concentration exhaust gas pipe; 13 air pipe; 14 a valve; 15 an exhaust gas pipe; 16 a tap water pipe; 17 hot water recycling pipe; 18 exhausting the first gas pipe; 19 a second exhaust pipe; 20 waste heat recovery pipes; 21 recovering the gas pipe.
Detailed Description
The following will further describe a styrene waste gas molecular sieve treatment device according to the present invention with reference to the accompanying drawings.
Referring to fig. 1 to 3, a molecular sieve treatment device for styrene exhaust gas in this embodiment includes a short fiber filter 1, a catalytic fan 10, a molecular sieve adsorber 3, a two-stage catalytic purifier 9, and a waste heat recycling furnace 5; the device is characterized in that one end of the short fiber filter 1 is connected with an exhaust gas pipe 15, and the other end is respectively connected with a high-concentration exhaust gas pipe 11 and a low-concentration exhaust gas pipe 12; the high-concentration waste gas pipe 11 is connected with a catalytic fan 10; the catalytic fan 10 is connected with the two-stage catalytic purifier 9 through a high-concentration waste gas pipe 11; the two-stage catalytic purifier 9 is connected with the waste heat recycling furnace 5 through an air pipe 13; one end of the waste heat recycling furnace 5 is connected with a tap water pipe 16, and the other end of the waste heat recycling furnace is connected with a hot water recycling pipe 17; the waste heat recycling furnace 5 is connected with the chimney 6 through a first exhaust pipe 18; the low-concentration air pipe 12 is respectively connected with the air filter 2 and the molecular sieve adsorber 3; the molecular sieve adsorber 3 is connected with an adsorption fan 4 through a second exhaust pipe 19; the adsorption fan 1 is connected with the chimney 6 through a second exhaust pipe 19; a waste heat recovery pipe 20 is connected between the two-stage catalytic purifier 9 and the regeneration fan 8; a waste heat recovery pipe 20 is connected between the regeneration fan 8 and the molecular sieve activation device 7; the molecular sieve activating device 7 is connected with the molecular sieve adsorber 3 through a waste heat recovery pipe 20; the molecular sieve adsorber 3 is connected with the two-stage catalytic purifier 9 through a recovery gas pipe 21; the two-stage catalytic converter 9 comprises an air inlet 901, an air outlet 902, a box body 910 and a regeneration air outlet 903; an air inlet 901 and an air outlet 902 are arranged on the side edge of the box body 910; a regeneration air outlet 903 and a lifting ring 904 are arranged at the top of the box body 910; a plurality of cabinets 905 are arranged in the box body 910; a support frame 908 is welded at the inner side edge of the cabinet 905; a drawer 907 is arranged on the support frame 908; a catalyst 909 is placed in the drawer 907; a heating strip 906 is arranged between the drawer 907 and the drawer 907; valves 14 are arranged on the high-concentration waste gas pipe 11, the low-concentration waste gas pipe 12 and the gas pipe 13; the molecular sieve adsorber 3 is internally provided with a molecular sieve layer and an airflow distributor, and adopts a honeycomb molecular sieve as an adsorbent, compared with activated carbon, the molecular sieve has the advantages that when the airflow temperature is higher, the whole system still operates safely and efficiently, and has good regeneration effect on styrene. The organic waste gas is intercepted and adsorbed by utilizing rich pore channels of the molecular sieve, so that the waste gas is purified, and the subsequent matched catalytic oxidation device is used for desorbing, regenerating and utilizing the activated carbon by utilizing the characteristic of low-temperature adsorption and high-temperature desorption of the molecular sieve, thereby reducing the operation and maintenance cost to the maximum extent.
The utility model discloses an operating process, at first waste gas gets into short fiber filter 1 through exhaust pipe 15 and filters, divide into high concentration waste gas and low concentration waste gas through short fiber filter 1 with waste gas, high concentration waste gas advances high concentration exhaust pipe 11 and catalytic fan 10 and gets into two-stage catalytic converter 9, through the catalytic combustion of two-stage catalytic converter 9, then get into waste heat retrieval and utilization stove 5 through trachea 13, waste heat retrieval and utilization stove 5 connects water pipe 16, waste gas through waste heat retrieval and utilization stove 5 gets into chimney 6 and discharges through blast pipe 18, because gaseous after the catalytic combustion gas gets into waste heat retrieval and utilization stove 5, so the running water of waste heat retrieval and utilization stove 5 rises along with the temperature, then carry out recycle through hot water retrieval and utilization pipe 17; the low-concentration waste gas enters the molecular sieve adsorber 3 through the low-concentration waste gas pipe 12, the waste gas after the waste gas is adsorbed by the molecular sieve adsorber 3 is discharged to a chimney 6 through a second exhaust pipe 19, and finally the waste gas is discharged from the chimney 6;
Molecular sieve desorption regeneration process: when the molecular sieve adsorber 3 enters a saturated state, the molecular sieve adsorber is heated in the two-stage catalytic purifier 9, regenerated gas enters the molecular sieve activation device 7 through the waste heat recovery pipe 20 and the regeneration fan 8, then the gas passing through the molecular sieve activation device 7 enters the molecular sieve adsorber 3 through the waste heat recovery pipe 20 to adsorb the gas, a valve on a gas pipe between the molecular sieve adsorber 3 and the two-stage catalytic purifier 9 is opened during adsorption, then the gas enters the two-stage catalytic purifier 9 through the recovery pipe 21 again, is discharged to a chimney 6 through the waste heat recycling furnace 5, and finally is discharged from the chimney 6; when the molecular sieve adsorber 3 is regenerated, the valve 14 on the low-concentration waste gas pipeline 12 and the valve 14 between the molecular sieve adsorber 3 and the adsorption fan 4 are closed, after adsorption is completed, the valve 14 of the air filter 2 and the valves 14 connected with the molecular sieve adsorber 3 in the front and back are opened, and the molecular sieve adsorber 3 is cooled through air.
The utility model has the advantages that the device has simple structure and convenient use, and the molecular sieve absorber 3 is adopted in the device, so that the molecular sieve can safely operate when the temperature of the airflow is higher, and has regeneration effect on styrene, and the molecular sieve is used for throttling adsorption of waste gas, so that the waste gas is purified, the operation can be reduced, and the cost is reduced; the gas after catalytic combustion is used for entering the waste heat recycling furnace 5, so that the water in the waste heat recycling furnace 5 can be heated and recycled;
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (4)
1. A molecular sieve treatment device for styrene waste gas comprises a short fiber filter (1), a catalytic fan (10), a molecular sieve adsorber (3), a two-stage catalytic purifier (9) and a waste heat recycling furnace (5); the short fiber filter is characterized in that the short fiber filter (1) is connected with an exhaust gas pipe (15), a high-concentration exhaust gas pipe (11) and a low-concentration exhaust gas pipe (12); the high-concentration waste gas pipe (11) is connected with a catalytic fan (10); the catalytic fan (10) is connected with the two-stage catalytic purifier (9) through a high-concentration waste gas pipe (11); the two-stage catalytic purifier (9) is connected with the waste heat recycling furnace (5) through an air pipe (13); one end of the waste heat recycling furnace (5) is connected with a tap water pipe (16), and the other end of the waste heat recycling furnace is connected with a hot water recycling pipe (17); the waste heat recycling furnace (5) is connected with the chimney (6) through a first exhaust pipe (18); the low-concentration air pipe (12) is respectively connected with the air filter (2) and the molecular sieve adsorber (3); the molecular sieve adsorber (3) is connected with an adsorption fan (4) through a second exhaust pipe (19); and the adsorption fan (4) is connected with the chimney (6) through a second exhaust pipe (19).
2. The molecular sieve treatment device for styrene waste gas according to claim 1, wherein: a waste heat recovery pipe (20) is connected between the two-stage catalytic purifier (9) and the regeneration fan (8); a waste heat recovery pipe (20) is connected between the regeneration fan (8) and the molecular sieve activation device (7); the molecular sieve activating device (7) is connected with the molecular sieve adsorber (3) through a waste heat recovery pipe (20); the molecular sieve adsorber (3) is connected with the two-stage catalytic purifier (9) through a recovery air pipe (21).
3. The molecular sieve treatment device for the styrene waste gas according to claim 2, characterized in that: the two-stage catalytic purifier (9) comprises an air inlet (901), an air outlet (902), a box body (910) and a regeneration air outlet (903); an air inlet (901) and an air outlet (902) are formed in the side edge of the box body (910); a regeneration air outlet (903) and a lifting ring (904) are arranged at the top of the box body (910); a plurality of cabinets (905) are arranged in the box body (910); a support frame (908) is welded at the inner side edge of the cabinet (905); a drawer (907) is arranged on the supporting frame (908); a catalyst (909) is placed in the drawer (907); and a heating strip (906) is arranged between the drawer (907) and the drawer (907).
4. The molecular sieve treatment device for styrene waste gas according to claim 1, wherein: and valves (14) are arranged on the high-concentration waste gas pipe (11) and the low-concentration waste gas pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101927.5U CN211159156U (en) | 2019-11-29 | 2019-11-29 | Styrene waste gas molecular sieve processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101927.5U CN211159156U (en) | 2019-11-29 | 2019-11-29 | Styrene waste gas molecular sieve processing apparatus |
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| CN211159156U true CN211159156U (en) | 2020-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539539A (en) * | 2021-07-30 | 2021-10-22 | 四川固力铁环保工程有限责任公司 | Catalytic cracking treatment process for radioactive waste oil |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539539A (en) * | 2021-07-30 | 2021-10-22 | 四川固力铁环保工程有限责任公司 | Catalytic cracking treatment process for radioactive waste oil |
| CN113539539B (en) * | 2021-07-30 | 2024-04-12 | 四川固力铁环保工程有限责任公司 | Catalytic cracking treatment process for radioactive waste oil |
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