CN112387065A - Organic waste gas nitrogen desorption recovery process - Google Patents
Organic waste gas nitrogen desorption recovery process Download PDFInfo
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- CN112387065A CN112387065A CN202011273624.2A CN202011273624A CN112387065A CN 112387065 A CN112387065 A CN 112387065A CN 202011273624 A CN202011273624 A CN 202011273624A CN 112387065 A CN112387065 A CN 112387065A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
- B01D53/04—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 stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
- B01D53/002—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 condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the technical field of waste gas nitrogen desorption, and particularly relates to an organic waste gas nitrogen desorption recovery process, which aims at solving the problems that cooling water cannot fully exchange heat with nitrogen and organic waste gas due to an over-simple internal structure of an existing condenser, so that the organic waste gas in the nitrogen cannot be fully cooled, the organic waste gas cannot be liquefied and cannot enter a solvent tank, and the existing filter cannot automatically clean dust on a filter screen, so that the filter has poor filtering effect after a period of time. According to the invention, when the filter plate rotates, the rubber plate impacts the striking plate, and dust on the filter plate can be shaken down into the dust collection box while the striking plate impacts the filter plate, so that people do not need to manually clean the filter plate.
Description
Technical Field
The invention relates to the technical field of waste gas nitrogen desorption, in particular to an organic waste gas nitrogen desorption recovery process.
Background
The organic waste gas treatment refers to the treatment work of adsorbing, filtering and purifying the organic waste gas generated in the industrial production process. The organic waste gas treatment is generally carried out by an air purification treatment method of organic substances containing carbon, hydrogen and oxygen, such as formaldehyde organic waste gas treatment, benzene series organic waste gas treatment such as benzene toluene xylene, acetone butanone organic waste gas treatment, ethyl acetate waste gas treatment, oil mist organic waste gas treatment, furfural organic waste gas treatment, styrene and acrylic acid organic waste gas treatment, resin organic waste gas treatment, additive organic waste gas treatment, paint mist organic waste gas treatment, and Tianna water organic waste gas treatment.
But in the in-service use in-process, because the inner structure of current condenser is too simple and lead to cooling water and nitrogen gas and organic waste gas can not abundant heat transfer to can not carry out abundant cooling to organic waste gas in the nitrogen gas, further lead to organic waste gas not liquefied and can not enter into the solvent tank, dust above the filter sieve can not clear up automatically to current filter, thereby lead to a period of time after the filter filtration effect relatively poor.
Disclosure of Invention
The invention provides an organic waste gas nitrogen desorption recovery process based on the technical problem that the internal structure of an existing condenser is too simple, so that cooling water, nitrogen and organic waste gas cannot exchange heat sufficiently, organic waste gas in the nitrogen cannot be cooled sufficiently, the organic waste gas cannot be liquefied and cannot enter a solvent tank, an existing filter cannot automatically clean dust on a filter screen, and the filter effect of the filter is poor after a period of time.
The invention provides an organic waste gas nitrogen desorption and recovery process, which comprises a condenser body and a filter box, wherein mounting holes are formed in the outer walls of two sides of the condenser body, heat exchange tubes are welded on the inner walls of the mounting holes, second baffles are welded on the outer walls of the heat exchange tubes, first baffles are welded on the inner walls of the condenser body, the first baffles and the second baffles are arranged in a staggered mode at equal intervals, air inlet holes are formed in the outer wall of the top of the filter box, guide plates are fixed on the inner walls of the air inlet holes through bolts, rotating rods are connected on the inner walls of the filter box through bearings, filter plates distributed at equal intervals are fixed on the outer walls of the rotating rods through bolts, a filter mechanism is arranged on the outer walls of the filter plates, rubber plates are fixed on the outer walls of the filter plates through bolts, beating plates are fixed on two sides of the inner wall of the bottom of the filter box through, and a dust collection box is fixed on the inner wall of the dust collection hole through a bolt.
Preferably, the filtering mechanism comprises a filtering hole, a filtering net is arranged on the inner wall of the filtering hole, and a rubber ring is arranged on the outer wall of the filtering net.
Preferably, a sliding groove is formed in the outer wall of one side of the dust collection box, a sliding rail is fixed to the inner wall of the sliding groove through a bolt, and a dust collection drawer is connected to the inner wall of the sliding rail in a sliding mode.
Preferably, the outer wall of the bottom of the filter box is provided with a fixing hole, and the inner wall of the fixing hole is fixed with the filter box through a bolt.
Preferably, the outer wall of the bottom of the condenser body is provided with a water inlet hole, and the inner wall of the water inlet hole is inserted with a water inlet pipe.
Preferably, the outer wall of the top of the condenser body is provided with a water outlet hole, and the inner wall of the water outlet hole is inserted with a water outlet pipe.
Preferably, the two ends of the heat exchange tube are respectively inserted with an air inlet tube and an air outlet tube.
Preferably, the method comprises the following steps:
s1: the method comprises the following steps that workshop waste gas is firstly sucked into an adsorber A and an adsorber B through a booster fan to be adsorbed, a filter is used for preliminarily filtering solid impurities in the workshop waste gas, organic waste gas in the workshop waste gas is basically and completely adsorbed by the adsorber A and the adsorber B, harmful gas and solid impurities in the adsorbed organic waste gas are basically and completely adsorbed, and the purified organic waste gas is discharged into a chimney through a main fan to be discharged;
s2: introducing nitrogen into a nitrogen heater, heating and pressurizing the nitrogen by the nitrogen heater, introducing high-temperature nitrogen into the adsorber A and the adsorber B, desorbing harmful gas and impurities in the adsorber A and the adsorber B by the high-temperature nitrogen, and introducing the desorbed harmful waste gas into a condenser body along with the nitrogen;
s3: harmful waste gas and nitrogen gas with certain temperature enter the heat exchange tube through the air inlet tube, cooling water is added into the condenser body through the water inlet tube, the first baffle and the second baffle are arranged in an equidistant staggered mode, so that the traveling distance of the cooling water can be increased, the contact time of the cooling water and the heat exchange tube is prolonged, and the cooling water can fully cool the harmful waste gas and the nitrogen gas;
s4: and desorbing the cooled nitrogen again through a desorption fan, recycling the desorbed nitrogen again into the nitrogen heater, and storing the liquid substance condensed out by the condenser through the solvent tank.
The beneficial effects of the invention are as follows:
1. the invention has the advantages that harmful waste gas and nitrogen with certain temperature enter the heat exchange tube through the air inlet tube by arranging the condenser body, the first baffle plate, the second baffle plate, the heat exchange tube, the rubber plate, the striking plate, the filter plate and the dust collection box, then cooling water is added into the condenser body through the water inlet tube, the traveling distance of the cooling water can be increased by arranging the first baffle plate and the second baffle plate in an equidistance staggered way, so that the contact time of the cooling water and the heat exchange tube is prolonged, the cooling water can fully cool the harmful waste gas and the nitrogen, the cooling effect is better, when the workshop waste gas is preliminarily filtered by the filter box, the workshop waste gas is pressurized and sprayed out through the booster fan, the sprayed air flow pushes the filter plate to rotate, the workshop waste gas is filtered by the filter plate, dust is accumulated on the filtered filter plate, when the filter plate rotates, the rubber plate impacts the striking, when the striking plate strikes the filter plate, dust on the filter plate can be shaken off into the dust collecting box, and people do not need to manually clean the filter plate.
2. According to the invention, the rubber ring, the filter hole and the filter screen are arranged, the filter screen is arranged in the filter hole, then the rubber ring is arranged on the filter screen, when the filter screen is cleaned, the rubber ring can be held to draw out the filter screen, and then the filter screen is cleaned or replaced according to dust accumulated on the filter screen and the damage degree.
3. The invention is provided with the A adsorber, the B adsorber and the desorption fan, harmful gas in workshop waste gas can be fully adsorbed by the A adsorber and the B adsorber, and cooled nitrogen can be further desorbed by the desorption fan, so that the purity of the nitrogen is ensured.
Drawings
FIG. 1 is a flow chart of a nitrogen desorption recovery process for organic waste gas according to the present invention;
FIG. 2 is a three-dimensional structure diagram of a condenser body of the organic waste gas nitrogen desorption recovery process provided by the invention;
FIG. 3 is a three-dimensional structure diagram of a filter box of the organic waste gas nitrogen desorption recovery process provided by the invention;
FIG. 4 is a three-dimensional structure diagram of a filter plate of the organic waste gas nitrogen desorption recovery process provided by the invention;
fig. 5 is an enlarged schematic structural diagram of a point a of the organic waste gas nitrogen desorption recovery process provided by the invention.
In the figure: the condenser comprises a water outlet pipe 1, a condenser body 2, a first baffle 3, a heat exchange pipe 4, an air inlet pipe 5, a water inlet pipe 6, a second baffle 7, an air outlet pipe 8, an air inlet hole 9, a filter box 10, a rubber plate 11, a dust collection drawer 12, a filter box 13, a striking plate 14, a dust collection box 15, a filter hole 16, a rubber ring 17, a filter plate 18 and a filter screen 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a nitrogen desorption and recovery process for organic waste gas, which comprises a condenser body 2 and a filter box 10, wherein mounting holes are respectively formed on the outer walls of two sides of the condenser body 2, a heat exchange tube 4 is welded on the inner wall of each mounting hole, a second baffle 7 is welded on the outer wall of each heat exchange tube 4, a first baffle 3 is welded on the inner wall of the condenser body 2, the first baffle 3 and the second baffle 7 are arranged in a staggered mode at equal intervals, an air inlet hole 9 is formed in the outer wall of the top of the filter box 10, a guide plate is fixed on the inner wall of the air inlet hole 9 through a bolt, a rotating rod is connected on the inner wall of the filter box 10 through a bearing, filter plates 18 which are distributed at equal intervals are fixed on the outer wall of the rotating rod through bolts, a filter mechanism is arranged on the outer wall of each filter plate 18, rubber plates 11 are fixed on the outer walls of the bottom, the inner wall of the dust collecting hole is fixed with a dust collecting box 15 through bolts.
The filtering mechanism comprises a filtering hole 16, a filtering net 19 is arranged on the inner wall of the filtering hole 16, and a rubber ring 17 is arranged on the outer wall of the filtering net 19.
In the invention, a chute is arranged on the outer wall of one side of the dust collection box 15, a slide rail is fixed on the inner wall of the chute through a bolt, and a dust collection drawer 12 is connected on the inner wall of the slide rail in a sliding way.
The bottom outer wall of the filter box 10 is provided with a fixing hole, and the inner wall of the fixing hole is fixed with a filter box 13 through a bolt.
In the invention, the outer wall of the bottom of the condenser body 2 is provided with a water inlet hole, and the inner wall of the water inlet hole is inserted with a water inlet pipe 6.
In the invention, the outer wall of the top of the condenser body 2 is provided with a water outlet hole, and the inner wall of the water outlet hole is inserted with a water outlet pipe 1.
In the invention, an air inlet pipe 5 and an air outlet pipe 8 are respectively inserted at two ends of a heat exchange pipe 4.
The invention comprises the following steps:
s1: the method comprises the following steps that workshop waste gas is firstly sucked into an adsorber A and an adsorber B through a booster fan to be adsorbed, a filter is used for preliminarily filtering solid impurities in the workshop waste gas, organic waste gas in the workshop waste gas is basically and completely adsorbed by the adsorber A and the adsorber B, harmful gas and solid impurities in the adsorbed organic waste gas are basically and completely adsorbed, and the purified organic waste gas is discharged into a chimney through a main fan to be discharged;
s2: introducing nitrogen into a nitrogen heater, heating and pressurizing the nitrogen by the nitrogen heater, introducing high-temperature nitrogen into the adsorber A and the adsorber B, desorbing harmful gas and impurities in the adsorber A and the adsorber B by the high-temperature nitrogen, and introducing the desorbed harmful waste gas into the condenser body 2 along with the nitrogen;
s3: harmful waste gas and nitrogen gas with certain temperature enter the heat exchange tube 4 through the air inlet tube 5, then cooling water is added into the condenser body 2 through the water inlet tube 6, the first baffle 3 and the second baffle 7 are arranged in an equidistance staggered manner, so that the traveling distance of the cooling water can be increased, the contact time of the cooling water and the heat exchange tube 4 is prolonged, and the cooling water can fully cool the harmful waste gas and the nitrogen gas;
s4: and desorbing the cooled nitrogen again through a desorption fan, recycling the desorbed nitrogen again into the nitrogen heater, and storing the liquid substance condensed out by the condenser through the solvent tank.
When the dust collecting device is used, workshop waste gas is firstly sucked into the adsorber A and the adsorber B through the booster fan for adsorption, solid impurities in the workshop waste gas are preliminarily filtered by the filter, the workshop waste gas is pressurized and sprayed out through the booster fan, the sprayed air flow pushes the filter plate 18 to rotate, the workshop waste gas is filtered by the filter plate 18, some dust can be accumulated on the filtered filter plate 18, the rubber plate 11 collides the striking plate 14 when the filter plate 18 rotates, the dust on the filter plate 185 can be shaken into the dust collecting box 15 when the striking plate 14 collides the filter plate 18, people are not required to manually clean the filter plate, the filter screen 19 is arranged inside the filter hole 16, then the rubber ring 17 is arranged on the filter screen 19, the rubber ring 17 can be held to draw out the filter screen 19 when the filter plate 18 is cleaned, and then the filter screen 19 is cleaned or replaced according to the dust accumulated on the filter screen 19 and the damage degree, organic waste gas in workshop waste gas is basically and completely adsorbed by the A adsorber and the B adsorber, harmful gas and solid impurities in the adsorbed organic waste gas are basically and completely adsorbed, the purified organic waste gas is discharged into a chimney through a main fan, nitrogen is introduced into a nitrogen heater, the nitrogen heater heats and pressurizes the nitrogen, high-temperature nitrogen enters the A adsorber and the B adsorber, the harmful gas and impurities in the A adsorber and the B adsorber are desorbed by the high-temperature nitrogen, the desorbed harmful waste gas enters the condenser body 2 along with the nitrogen, the harmful waste gas and the nitrogen with certain temperature enter the heat exchange tube 4 through the air inlet tube 5, then cooling water is added into the condenser body 2 through the water inlet tube 6, the first baffle 3 and the second baffle 7 are arranged at equal intervals and staggered to increase the traveling distance of the cooling water, thereby increased the contact time of cooling water and heat exchange tube 4, let the cooling water can be abundant cool off harmful waste gas and nitrogen gas, the nitrogen gas after the cooling is desorbed once more through the desorption fan, and the nitrogen gas after the desorption enters into the nitrogen heater once more and recycles, and the liquid material that the condenser condensation came out is stored through the solvent pot.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The organic waste gas nitrogen desorption recovery process comprises a condenser body (2) and a filter box (10), and is characterized in that mounting holes are formed in the outer walls of the two sides of the condenser body (2), heat exchange tubes (4) are welded on the inner walls of the mounting holes, second baffles (7) are welded on the outer walls of the heat exchange tubes (4), first baffles (3) are welded on the inner walls of the condenser body (2), the first baffles (3) and the second baffles (7) are arranged in an equidistance staggered mode, air inlet holes (9) are formed in the outer wall of the top of the filter box (10), guide plates are fixed on the inner walls of the air inlet holes (9) through bolts, rotating rods are connected to the inner wall of the filter box (10) through bearings, filter plates (18) distributed equidistantly are fixed on the outer wall of the rotating rods through bolts, and a filter mechanism is arranged on the outer wall of the filter plates, and the outer wall of the filter plate (18) is fixed with a rubber plate (11) through bolts, the two sides of the inner wall of the bottom of the filter box (10) are both fixed with striking plates (14) through bolts, the two sides of the inner wall of the bottom of the filter box (10) are both provided with dust collecting holes, and the inner wall of each dust collecting hole is fixed with a dust collecting box (15) through bolts.
2. The organic waste gas nitrogen desorption recovery process according to claim 1, wherein the filtering mechanism comprises a filtering hole (16), a filtering net (19) is arranged on the inner wall of the filtering hole (16), and a rubber ring (17) is arranged on the outer wall of the filtering net (19).
3. The organic waste gas nitrogen desorption and recovery process according to claim 1, wherein a chute is formed on the outer wall of one side of the dust collection box (15), a sliding rail is fixed on the inner wall of the chute through a bolt, and a dust collection drawer (12) is connected to the inner wall of the sliding rail in a sliding manner.
4. The organic waste gas nitrogen desorption recovery process according to claim 1, wherein the outer wall of the bottom of the filter box (10) is provided with a fixing hole, and the inner wall of the fixing hole is fixed with the filter box (13) through a bolt.
5. The organic waste gas nitrogen desorption recovery process according to claim 1, wherein the outer wall of the bottom of the condenser body (2) is provided with a water inlet hole, and the inner wall of the water inlet hole is inserted with a water inlet pipe (6).
6. The organic waste gas nitrogen desorption recovery process according to claim 5, wherein the condenser body (2) is provided with a water outlet hole on the outer wall of the top part, and the water outlet pipe (1) is inserted into the inner wall of the water outlet hole.
7. The organic waste gas nitrogen desorption recovery process according to claim 1, wherein an air inlet pipe (5) and an air outlet pipe (8) are respectively inserted at two ends of the heat exchange pipe (4).
8. The organic waste gas nitrogen desorption recovery process according to claim 1, which comprises the following steps:
s1: the method comprises the following steps that workshop waste gas is firstly sucked into an adsorber A and an adsorber B through a booster fan to be adsorbed, a filter is used for preliminarily filtering solid impurities in the workshop waste gas, organic waste gas in the workshop waste gas is basically and completely adsorbed by the adsorber A and the adsorber B, harmful gas and solid impurities in the adsorbed organic waste gas are basically and completely adsorbed, and the purified organic waste gas is discharged into a chimney through a main fan to be discharged;
s2: introducing nitrogen into a nitrogen heater, heating and pressurizing the nitrogen by the nitrogen heater, introducing high-temperature nitrogen into the adsorber A and the adsorber B, desorbing harmful gas and impurities in the adsorber A and the adsorber B by the high-temperature nitrogen, and introducing the desorbed harmful waste gas into the condenser body (2) along with the nitrogen;
s3: harmful waste gas and nitrogen with certain temperature enter the heat exchange tube (4) through the air inlet tube (5), then cooling water is added into the condenser body (2) through the water inlet tube (6), the first baffle (3) and the second baffle (7) are arranged in an equidistant and staggered mode, so that the running distance of the cooling water can be increased, the contact time between the cooling water and the heat exchange tube (4) is prolonged, and the cooling water can fully cool the harmful waste gas and the nitrogen;
s4: and desorbing the cooled nitrogen again through a desorption fan, recycling the desorbed nitrogen again into the nitrogen heater, and storing the liquid substance condensed out by the condenser through the solvent tank.
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| CN202011273624.2A CN112387065B (en) | 2020-11-14 | 2020-11-14 | Organic waste gas nitrogen desorption recovery process |
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| CN112957839A (en) * | 2021-03-04 | 2021-06-15 | 南京工业职业技术大学 | Clean combustion boiler |
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| CN118565069A (en) * | 2024-07-29 | 2024-08-30 | 岳阳远大热能设备有限公司 | Hot-blast stove with air self-preheating mechanism |
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