CN218011959U - A processing apparatus that is arranged in furniture spraying volatility organic waste gas - Google Patents
A processing apparatus that is arranged in furniture spraying volatility organic waste gas Download PDFInfo
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- CN218011959U CN218011959U CN202221926750.8U CN202221926750U CN218011959U CN 218011959 U CN218011959 U CN 218011959U CN 202221926750 U CN202221926750 U CN 202221926750U CN 218011959 U CN218011959 U CN 218011959U
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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
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Abstract
The utility model provides a treatment device for volatile organic waste gas in furniture spraying, which comprises a primary cyclone, a secondary cyclone and a fixed bed which are connected in sequence, wherein the primary cyclone, the secondary cyclone and the fixed bed are respectively and independently provided with active carbon; the target pollutant in the volatile organic waste gas is further adsorbed in the fixed bed after being sequentially adsorbed by the primary cyclone and the secondary cyclone. The utility model adopts the two-stage cyclone to ensure the full contact between the volatile organic waste gas and the active carbon, thereby enhancing the treatment efficiency of the device; the primary cyclone, the secondary cyclone and the fixed bed are adopted to treat target pollutants in volatile organic waste gas step by step, and the standard emission of organic matters is realized together; the device also has the advantages of simple structure and low manufacturing cost; the utility model provides a but device wide application is in the purification treatment of produced volatile organic waste gas in the furniture spraying.
Description
Technical Field
The utility model belongs to the technical field of atmospheric pollutants administers, especially, relate to a processing apparatus that is arranged in furniture spraying volatility organic waste gas.
Background
Furniture spraying is one of the essential links in the furniture production process. However, the painting and curing process in furniture production releases a large amount of volatile organic compounds, such as toluene, xylene, formaldehyde, phenol, ether, ester or paint mist, which not only have a serious impact on the overall air quality, but also have direct negative effects on the work, study and life of people. The organic waste gas treatment technology in the prior art mainly comprises the following steps: wet filtration spraying, activated carbon adsorption, photocatalytic degradation and activated carbon secondary adsorption; wet filtration spraying, activated carbon adsorption, plasma or photocatalytic degradation; dry filtration, photocatalytic degradation, activated carbon adsorption and the like.
However, the prior art organic waste gas treatment technologies have some problems: too many dust particles carried with the waste gas have great influence on the subsequent treatment effect; the effect of removing paint mist particles in waste gas by adopting wet filtration and spraying is poor, the spray tower occupies a large area and needs water supply, and waste water containing a large amount of paint mist particles is generated in the removing process; the paint mist is not completely removed, and a large amount of water vapor can cover the surfaces of the light tube and the catalyst, so that the subsequent purification effect is directly influenced; photocatalytic degradation is inefficient and unstable and has been proposed to be avoided; the plasma technology has high energy consumption, dangerous high-voltage discharge and low treatment efficiency and is accompanied with the generation of a large amount of secondary pollutants such as ozone and the like; the quality of the active carbon adsorption material directly determines the quality of adsorption performance, the purification effect of good-quality active carbon is obvious, but the problem of saturated adsorption, replacement and regeneration exists.
CN109078481A discloses a hydrocarbon solvent VOCs waste gas integrated treatment device. The system comprises a waste gas absorption system, an activated sludge adsorption system, a water-gas separation system, an activated carbon adsorption system, a sewage biodegradation system and a water circulation system. The device comprises a waste gas absorption tower, an activated sludge adsorption tank, a gas-water conveying channel communicated with the waste gas absorption tower and the activated sludge adsorption tank, a gas-water separation device entering from gas escaped from the activated sludge adsorption tank, an activated carbon adsorption device connected with the gas-water separation device, a microbial degradation device entering sewage overflowed from the activated sludge adsorption tank through a water outlet weir, and a circulating water system. However, the integrated treatment device for the VOCs waste gas of the hydrocarbon solvent has a complex structure and high manufacturing cost, and is not suitable for large-scale popularization and use.
CN103316560A discloses a paint spraying organic solvent waste gas recovery device and a method for recovering an organic solvent by using the same, which includes a paint mist removing device, a fan, an adsorption tank, a condenser and an oil-water separator, which are connected in sequence, wherein the paint mist removing device includes a gas collection tank, a cyclone dust collector and a bag-type dust collector for temporarily storing organic solvent waste gas, and the gas collection tank, the cyclone dust collector and the bag-type dust collector are connected in sequence. But this organic solvent waste gas recovery unit sprays paint has used the great coating cloud remove device of area, and can produce a large amount of waste water that contain the coating cloud granule, and is serious to environmental pollution.
CN205287960U discloses a processing system for organic waste gas, which comprises a cyclone washing device, a steam-water separator and a low-temperature plasma organic waste gas processing device, wherein partition plates, a gas distributor, a first cyclone plate, a first spray device, a second cyclone plate, a second spray device, a third cyclone plate and a third spray device are arranged in the cyclone washing device from bottom to top at intervals in sequence; the cyclone washing device is connected with the steam-water separator, and the steam-water separator is connected with the low-temperature plasma organic waste gas treatment device. However, the treatment system for organic waste gas adopts wet filtration spraying to remove paint mist particles in the waste gas, the spray tower occupies a large area and needs water supply, and waste water containing a large amount of paint mist particles is generated in the removal process.
The volatile organic waste gas treatment device disclosed at present has certain defects, so that the treatment device for the volatile organic waste gas generated in furniture spraying, which has the advantages of high adsorption efficiency, strong selectivity, simple structure, low manufacturing cost and environmental friendliness, is designed in consideration of the actual requirements and bearing capacity of enterprises, and is very important.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a treatment device for volatile organic waste gas in furniture spraying, which adopts a two-stage swirler to ensure the full contact between the volatile organic waste gas and the active carbon, thereby enhancing the treatment efficiency of the device; the activated carbon can reduce the influence of water vapor in the waste gas and improve the selectivity of the waste gas, so that the removal effect of target pollutants is improved, and the activated carbon can be regenerated and reused after being saturated; the primary cyclone, the secondary cyclone and the fixed bed are adopted to carry out step-by-step treatment on target pollutants in the volatile organic waste gas, so that the standard emission of organic matters is jointly realized; the device still has simple structure and low in manufacturing cost's advantage, the utility model provides a but device wide application is in the purification treatment of produced volatile organic waste gas (VOCs) in the furniture spraying.
To achieve the purpose, the utility model adopts the following technical proposal:
in a first aspect, the utility model provides a treatment device for volatile organic waste gas in furniture spraying, which comprises a primary cyclone, a secondary cyclone and a fixed bed which are connected in sequence, wherein the primary cyclone, the secondary cyclone and the fixed bed are respectively and independently provided with active carbon;
the target pollutant in the volatile organic waste gas is further adsorbed in the fixed bed after being sequentially adsorbed by the primary cyclone and the secondary cyclone.
The first-stage cyclone and the second-stage cyclone of the utility model are typical devices for treating volatile organic waste gas by using centrifugal force and gravity, and have small occupied area, simple structure, convenient installation and operation and low running cost; the activated carbon moves downwards along the axial direction of the cyclone in the primary cyclone and the secondary cyclone under the action of the cyclone field and moves outwards along the radial direction to form an outer vortex flow field, and the activated carbon moves downwards after reaching the inner wall of the cyclone and is discharged from a dust discharge pipe of the cyclone; the volatile organic waste gas moves towards the direction of the central axis of the cyclone, forms an inner vortex moving upwards in the direction of the axis and is then discharged from the exhaust port; in the process, the waste gas moves upwards along the direction of the central axis, and the contact probability of the waste gas and the activated carbon moving downwards along the radial direction and the axial direction is increased, so that the adsorption efficiency is improved.
In the utility model, the first-stage cyclone and the second-stage cyclone ensure the full contact between the volatile organic waste gas and the active carbon, thereby enhancing the treatment efficiency of the volatile organic waste gas treatment device; the active carbon can adopt the existing known strong-hydrophobicity active carbon, can reduce the influence of water vapor in the waste gas and improve the selectivity on the target waste gas, thereby improving the removal effect of the target pollutants, and the active carbon can be regenerated and reused after being saturated; the volatile organic waste gas treatment device adopts a primary cyclone, a secondary cyclone and a fixed bed to carry out step-by-step treatment on target pollutants in the volatile organic waste gas so as to ensure that organic matters are discharged after reaching standards; the volatile organic waste gas treatment device also has the advantages of simple structure and low manufacturing cost.
The utility model discloses in, cyclone bed specifically can be adopted to one-level swirler and second grade swirler.
As a preferred technical scheme, the volatile organic waste gas processing apparatus is still including setting up the dust remover between secondary cyclone and fixed bed.
As an optimized technical proposal of the utility model, the dust remover is a cloth bag dust remover.
But sack cleaner entrapment particle diameter is greater than 0.3 micron tiny dust particle, and the surrounding environment influences lessly to its dust removal effect, and external bellows application range is wide, can directly locate indoor, close on small-size unit.
Activated carbon among the second grade swirler subsides after getting into the sack cleaner, and the activated carbon circulation after subsiding is sent into the primary cyclone and is until adsorbing the saturation, and the activated carbon after the saturation is used for the primary cyclone again after the regeneration in, the sack cleaner has reduced the loss of activated carbon.
As an optimal technical scheme of the utility model, the one-level swirler includes the casing, the casing includes cylinder and the cone of lower extreme of upper end, the bottom of cone is provided with the dust exhaust pipe, be provided with the intake pipe on the outer wall of cylinder, the top of cylinder is provided with the blast pipe.
As an optimized technical scheme of the utility model, the structure of second grade swirler is the same with the structure of one-level swirler completely.
As an optimized technical proposal of the utility model, the fixed bed is a drawer type active carbon adsorption box or an active carbon packed bed.
Drawer type active carbon adsorption case has the advantage of easily changing.
As a preferred technical solution of the present invention, the air inlet pipe of the primary cyclone is communicated with the discharge pipeline of the volatile organic waste gas, the exhaust pipe of the primary cyclone is communicated with the air inlet pipe of the secondary cyclone, and the exhaust pipe of the secondary cyclone is communicated with the air inlet pipe of the bag-type dust collector; the exhaust pipe of the bag-type dust collector is communicated with the air inlet pipe of the drawer-type activated carbon adsorption box or the activated carbon packed bed, and a tail gas discharge port is arranged at the top of the drawer-type activated carbon adsorption box or the activated carbon packed bed.
As a preferred technical scheme, a dry process filter that is arranged in between volatile organic waste gas's discharge line and one-level swirler is still including setting up to the processing apparatus for volatile organic waste gas in the furniture spraying.
As a preferred technical scheme of the utility model, the dust exhaust pipes of the primary cyclone and the secondary cyclone are both communicated with the air inlet pipe of the primary cyclone; and a dust exhaust pipe arranged in the bag-type dust collector is communicated with an air inlet pipe of the primary cyclone.
As an optimized technical scheme of the utility model, the active carbon that sets up in one-level swirler and the second grade swirler is powdered activated carbon, the active carbon that sets up in the fixed bed is granular activated carbon.
As a preferred technical proposal of the utility model, strong hydrophobic modified active carbon is arranged in the primary cyclone, the secondary cyclone and the fixed bed; wherein, the first-stage cyclone and the second-stage cyclone are provided with strong hydrophobic modified powdery activated carbon with the grain diameter of more than 200 meshes; strong hydrophobic modified granular activated carbon with the grain diameter of 20-40 meshes is arranged in the fixed bed.
The strong hydrophobic modified activated carbon in the utility model refers to modified activated carbon with stronger hydrophobic property; the present invention employs known active carbon ingredients, whether in powder or granular form.
The particle diameter of the strongly hydrophobic modified powdery activated carbon in the present invention is 200 mesh or more, and may be, for example, 201 mesh, 210 mesh, 220 mesh, 240 mesh, 260 mesh, 300 mesh, 400 mesh, 500 mesh, 800 mesh, 1000 mesh, 1500 mesh, 2000 mesh or 5000 mesh, but is not limited to the above-mentioned numerical values, and other numerical values not mentioned in the numerical value range are also applicable.
The particle diameter of the strongly hydrophobic modified granular activated carbon in the present invention is 20 to 40 mesh, and may be, for example, 20 mesh, 21 mesh, 22 mesh, 23 mesh, 24 mesh, 25 mesh, 26 mesh, 27 mesh, 28 mesh, 29 mesh, 30 mesh, 31 mesh, 32 mesh, 33 mesh, 34 mesh, 35 mesh, 36 mesh, 37 mesh, 38 mesh, 39 mesh or 40 mesh, but is not limited to the above-mentioned values, and other values not shown in the above-mentioned range of values are also applicable.
In a second aspect, for example, the present invention provides a working method of a voc emission treatment apparatus, including:
the volatile organic waste gas is introduced into the primary cyclone through a volatile organic waste gas discharge pipeline, or filtered by a dry filter, and then introduced into the primary cyclone, and then introduced into the secondary cyclone after being adsorbed by the primary cyclone, and then introduced into the bag-type dust collector after being further adsorbed by the secondary cyclone, the active carbon and the treated volatile organic waste gas are separated in the bag-type dust collector, and the treated volatile organic waste gas is discharged out of the fixed bed after being re-adsorbed in the fixed bed.
The utility model provides a volatile organic waste gas is including the waste gas that sprays paint, but is not limited to the waste gas that sprays paint only, and produced volatile organic waste gas is applicable equally in the furniture spraying that other do not enumerate.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The primary cyclone and the secondary cyclone of the utility model ensure the full contact between the volatile organic waste gas and the active carbon, thereby enhancing the treatment efficiency of the volatile organic waste gas treatment device in furniture spraying;
(2) The activated carbon of the utility model can effectively reduce the influence of water vapor in the waste gas, and improve the selectivity to the target waste gas, thereby improving the removal effect of target pollutants, and the activated carbon can be regenerated after saturation and reused;
(3) The volatile organic waste gas treatment device of the utility model adopts the primary cyclone, the secondary cyclone and the fixed bed to treat the target pollutants in the volatile organic waste gas step by step, so that the organic matters are discharged after reaching the standard;
(4) Volatile organic waste gas processing apparatus still has simple structure and low in manufacturing cost's advantage.
Drawings
Fig. 1 is a schematic structural diagram of a voc exhaust treatment device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a voc emission treatment apparatus with a dry filter according to an embodiment of the present invention.
Wherein, 1-a first-stage swirler; 2-a secondary cyclone; 3-fixed bed; 4-a dust remover; 5-dry filter.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings only for the convenience of description and simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In one embodiment, as shown in fig. 1, the present invention provides a voc emission treatment apparatus, which includes a primary cyclone 1, a secondary cyclone 2 and a fixed bed 3 connected in sequence, wherein activated carbon is independently disposed in the primary cyclone 1, the secondary cyclone 2 and the fixed bed 3;
the target pollutant in the volatile organic waste gas is further adsorbed in a fixed bed 3 after being sequentially adsorbed by a primary cyclone 1 and a secondary cyclone 2.
The first-stage cyclone 1 and the second-stage cyclone 2 in the utility model are typical devices for treating volatile organic waste gas by using centrifugal force and gravity, and have small occupied area, simple structure, convenient installation and operation and low running cost; the activated carbon moves downwards along the axial direction of the cyclone under the action of the cyclone fields in the primary cyclone 1 and the secondary cyclone 2 and moves outwards along the radial direction to form an outer vortex flow field, and the activated carbon moves downwards after reaching the inner wall of the cyclone and is discharged from a dust discharge pipe of the cyclone; the volatile organic waste gas moves towards the direction of the central axis of the cyclone, forms an inner vortex moving upwards in the direction of the axis and is then discharged from the exhaust port; in the process, the waste gas moves upwards along the direction of the central axis, and the contact probability of the waste gas and the activated carbon moving downwards along the radial direction and the axial direction is increased, so that the adsorption efficiency is improved.
The primary cyclone 1 and the secondary cyclone 2 of the utility model ensure the full contact between the volatile organic waste gas and the active carbon, thereby enhancing the treatment efficiency of the volatile organic waste gas treatment device; the active carbon can adopt strong hydrophobic active carbon, the influence of water vapor in the waste gas can be reduced, the selectivity on the target waste gas is improved, the target pollutant removal effect is improved, and the active carbon can be regenerated and reused after being saturated; the volatile organic waste gas treatment device adopts a primary cyclone 1, a secondary cyclone 2 and a fixed bed 3 to carry out step-by-step treatment on target pollutants in the volatile organic waste gas so as to discharge organic matters up to the standard; the volatile organic waste gas treatment device also has the advantages of simple structure and low manufacturing cost.
Further, the voc exhaust gas treatment apparatus further includes a dust separator 4 disposed between the secondary cyclone 2 and the fixed bed 3.
Further, the dust remover 4 is a bag-type dust remover.
The utility model discloses in but the sack cleaner entrapment particle diameter is greater than 0.3 micron tiny dust particle, and the surrounding environment influences lessly to its dust removal effect, and external bellows application range is wide, can directly locate indoor, close on small-size unit.
The utility model discloses in activated carbon among the second grade swirler 2 subsides after getting into the sack cleaner, and the activated carbon circulation after subsiding is sent into one-level swirler 1 until adsorbing the saturation, and the activated carbon after the saturation is used for one-level swirler 1 after regenerating once more, the sack cleaner has reduced the loss of activated carbon.
Further, one-level swirler 1 includes the casing, the casing includes cylinder and the cone of lower extreme of upper end, the bottom of cone is provided with the dust exhaust pipe, be provided with the intake pipe on the outer wall of cylinder, the top of cylinder is provided with the blast pipe.
Further, the secondary cyclone 2 and the primary cyclone 1 have the same structure.
Further, the fixed bed 3 is a drawer type activated carbon adsorption tank or an activated carbon packed bed.
Drawer type active carbon adsorption box has the advantage of be liable to change.
Further, an air inlet pipe of the primary cyclone 1 is communicated with a volatile organic waste gas discharge pipeline, an air outlet pipe of the primary cyclone 1 is communicated with an air inlet pipe of the secondary cyclone 2, and an air outlet pipe of the secondary cyclone 2 is communicated with an air inlet pipe of a bag-type dust collector; the exhaust pipe of the bag-type dust collector is communicated with the air inlet pipe of the drawer-type activated carbon adsorption box or the activated carbon packed bed, and a tail gas discharge port is arranged at the top of the drawer-type activated carbon adsorption box or the activated carbon packed bed.
Further, as shown in fig. 2, the voc emission treatment apparatus further includes a dry filter 5 disposed between the voc emission duct and the primary cyclone 1. Through the dry filter 5, fine sawdust mixed in the organic waste gas can be effectively filtered out, so that the treatment efficiency of purifying the organic waste gas is better improved.
Furthermore, the dust exhaust pipes of the primary cyclone 1 and the secondary cyclone 2 are communicated with the air inlet pipe of the primary cyclone 1;
and a dust exhaust pipe arranged in the bag-type dust remover is communicated with an air inlet pipe of the primary cyclone 1.
Further, the activated carbon arranged in the primary cyclone 1 and the secondary cyclone 2 is powdered activated carbon, and the activated carbon arranged in the fixed bed 3 is granular activated carbon.
As a preferred technical proposal of the utility model, strong hydrophobic modified active carbon is arranged in the primary cyclone, the secondary cyclone and the fixed bed;
strong hydrophobic modified powdery activated carbon with the particle size of more than 200 meshes is arranged in the primary cyclone and the secondary cyclone; strong hydrophobic modified granular activated carbon with the grain diameter of 20-40 meshes is arranged in the fixed bed.
In another embodiment, the present invention provides a method for operating a voc emission treatment apparatus, including:
the volatile organic waste gas is introduced into the primary cyclone 1 through a volatile organic waste gas discharge pipeline, or filtered by a dry filter 5, then introduced into the primary cyclone 1, adsorbed by the primary cyclone 1 and then introduced into the secondary cyclone 2, further adsorbed by the secondary cyclone 2 and then introduced into the bag-type dust collector, the activated carbon and the treated volatile organic waste gas are separated in the bag-type dust collector, and the treated volatile organic waste gas is discharged out of the fixed bed 3 through re-adsorption in the fixed bed 3.
The utility model provides a volatile organic waste gas is including the waste gas that sprays paint, but is not limited to the waste gas that sprays paint only, and other volatile organic waste gases that do not enumerate are equally suitable.
Example 1
The embodiment provides a volatile organic waste gas treatment device, which comprises a primary cyclone, a secondary cyclone, a bag-type dust collector and a drawer type activated carbon adsorption box which are sequentially connected, wherein powdery activated carbon with the diameter higher than 201 meshes is arranged in the primary cyclone and the secondary cyclone, and granular activated carbon with the particle diameter of 30 meshes is arranged in the drawer type activated carbon adsorption box;
the primary cyclone comprises a shell, the shell comprises a cylinder at the upper end and a cone at the lower end, a dust exhaust pipe is arranged at the bottom of the cone, an air inlet pipe is arranged on the outer wall of the cylinder, an exhaust pipe is arranged at the top of the cylinder, and the secondary cyclone and the primary cyclone have the same structure;
the air inlet pipe of the primary cyclone is communicated with a volatile organic waste gas discharge pipeline, the air outlet pipe of the primary cyclone is communicated with the air inlet pipe of the secondary cyclone, and the air outlet pipe of the secondary cyclone is communicated with the air inlet pipe of the bag-type dust collector; an exhaust pipe of the bag-type dust collector is communicated with an air inlet pipe of a drawer-type activated carbon adsorption box, and a tail gas discharge port is formed in the top of the drawer-type activated carbon adsorption box; the dust exhaust pipes of the primary cyclone and the secondary cyclone are communicated with the air inlet pipe of the primary cyclone; and a dust exhaust pipe in the bag-type dust collector is communicated with an air inlet pipe of the primary cyclone.
Example 2
The embodiment provides a volatile organic waste gas treatment device, which comprises a primary cyclone, a secondary cyclone, a bag-type dust collector and a packed bed which are sequentially connected, wherein powdery activated carbon with the diameter higher than 500 meshes is arranged in the primary cyclone and the secondary cyclone, and granular activated carbon with the particle size of 40 meshes is arranged in the packed bed;
the primary cyclone comprises a shell, the shell comprises a cylinder at the upper end and a cone at the lower end, a dust exhaust pipe is arranged at the bottom of the cone, an air inlet pipe is arranged on the outer wall of the cylinder, an exhaust pipe is arranged at the top of the cylinder, and the secondary cyclone and the primary cyclone have the same structure;
the air inlet pipe of the primary cyclone is communicated with a volatile organic waste gas discharge pipeline, the air outlet pipe of the primary cyclone is communicated with the air inlet pipe of the secondary cyclone, and the air outlet pipe of the secondary cyclone is communicated with the air inlet pipe of the bag-type dust collector; an exhaust pipe of the bag-type dust collector is communicated with an air inlet pipe of the packed bed, and a tail gas discharge port is formed in the top of the packed bed; the dust exhaust pipes of the primary cyclone and the secondary cyclone are communicated with the air inlet pipe of the primary cyclone; and a dust exhaust pipe in the bag-type dust remover is communicated with an air inlet pipe of the primary cyclone.
Example 3
The utility model discloses a volatile organic waste gas treatment device, which comprises a dry filter, a primary cyclone, a secondary cyclone, a bag-type dust collector and a drawer type active carbon adsorption box which are connected in sequence, wherein powdery active carbon with the diameter higher than 1000 meshes is arranged in the primary cyclone and the secondary cyclone, and granular active carbon with the grain diameter of 20 meshes is arranged in the drawer type active carbon adsorption box;
the primary cyclone comprises a shell, the shell comprises a cylinder at the upper end and a cone at the lower end, a dust exhaust pipe is arranged at the bottom of the cone, an air inlet pipe is arranged on the outer wall of the cylinder, an exhaust pipe is arranged at the top of the cylinder, and the secondary cyclone and the primary cyclone have the same structure;
the air inlet pipe of the dry filter is communicated with a volatile organic waste gas discharge pipeline, the air outlet pipe of the dry filter is communicated with the air inlet pipe of the primary cyclone, the air outlet pipe of the primary cyclone is communicated with the air inlet pipe of the secondary cyclone, and the air outlet pipe of the secondary cyclone is communicated with the air inlet pipe of the bag-type dust collector; an exhaust pipe of the bag-type dust collector is communicated with an air inlet pipe of a drawer-type activated carbon adsorption box, and a tail gas discharge port is formed in the top of the drawer-type activated carbon adsorption box; the dust exhaust pipes of the primary cyclone and the secondary cyclone are communicated with the air inlet pipe of the primary cyclone; and a dust exhaust pipe in the bag-type dust remover is communicated with an air inlet pipe of the primary cyclone.
Application example 1
The present application example provides an operation method of the volatile organic compound exhaust gas treatment device in embodiment 1, the operation method including:
the method comprises the following steps that volatile organic waste gas is introduced into a primary cyclone from a volatile organic waste gas discharge pipeline at the speed of 20000 cubic/hour, enters a secondary cyclone after being adsorbed by the primary cyclone, enters a bag-type dust collector after being further adsorbed by the secondary cyclone, activated carbon and the treated volatile organic waste gas are separated in the bag-type dust collector, and the treated volatile organic waste gas is discharged out of a drawer-type activated carbon adsorption box after being adsorbed again in the drawer-type activated carbon adsorption box;
the filling amount of the powdery active carbon in the primary cyclone is 1.0 to 3.3 tons, the filling amount of the powdery active carbon in the secondary cyclone is 1.0 to 3.3 tons, and the filling amount of the granular active carbon in the drawer type active carbon adsorption box is 2.0 to 6.6 tons.
Application example 2
The present application example provides an operation method of the volatile organic compound exhaust gas treatment device in embodiment 2, the operation method including:
the volatile organic waste gas is introduced into a primary cyclone from a volatile organic waste gas discharge pipeline at the speed of 40000 cubic meters per hour, enters a secondary cyclone after being adsorbed by the primary cyclone, enters a bag-type dust collector after being further adsorbed by the secondary cyclone, the active carbon and the treated volatile organic waste gas are separated in the bag-type dust collector, and the treated volatile organic waste gas is discharged out of the packed bed after being adsorbed again in the packed bed;
the filling amount of the powdered activated carbon in the primary cyclone is 2.0 to 6.6 tons, the filling amount of the powdered activated carbon in the secondary cyclone is 2.0 to 6.6 tons, and the filling amount of the granular activated carbon in the packed bed is 2.0 to 6.6 tons.
Comparative example 1
This comparative example provides a voc emission treatment apparatus similar to that of example 1 except that the secondary cyclone is omitted.
The removal efficiency of the organic volatile gas of the primary cyclone is limited, so that the residual volatile organic gas in the outlet gas of the fixed bed is overlarge.
Comparative example 2
This comparative example provides a voc emission treatment apparatus similar to that of example 1 except that the drawer-type activated carbon adsorption tank was omitted.
Because the adsorption of the drawer-type active carbon adsorption box is not carried out, the efficiency of the volatile organic waste gas treatment device for removing the volatile organic waste gas is reduced, and the treatment cost is increased.
To sum up, the first-stage cyclone and the second-stage cyclone of the utility model ensure the full contact between the volatile organic waste gas and the active carbon, thereby enhancing the treatment efficiency of the volatile organic waste gas treatment device; through activated carbon adsorption, the influence of water vapor in the waste gas can be reduced, the selectivity on the target waste gas is improved, and thus the target pollutant removal effect is improved, and the activated carbon can be reused after being saturated; the volatile organic waste gas treatment device of the utility model adopts a primary cyclone, a secondary cyclone and a fixed bed to treat target pollutants in the volatile organic waste gas step by step, so that the organic matters are discharged up to the standard (can reach the corresponding discharge standard of the volatile organic matter discharge standard No. 6 part: furniture manufacturing industry (DB 36/1101.6-2019)); the device also has the advantages of simple structure and low manufacturing cost.
The applicant states that the above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceived by those skilled in the art within the technical scope of the present invention are all within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. The device for treating the volatile organic waste gas in furniture spraying is characterized by comprising a primary cyclone, a secondary cyclone and a fixed bed which are sequentially connected, wherein activated carbon is respectively and independently arranged in the primary cyclone, the secondary cyclone and the fixed bed;
the target pollutant in the volatile organic waste gas is further adsorbed in the fixed bed after being sequentially adsorbed by the primary cyclone and the secondary cyclone.
2. The device for treating the exhaust gas of furniture spraying according to claim 1, wherein the device further comprises a dust remover arranged between the secondary cyclone and the fixed bed.
3. The device for treating the volatile organic waste gas in furniture spraying according to claim 2, wherein the dust remover is a bag-type dust remover.
4. The device for treating the volatile organic waste gas in furniture spraying according to claim 3, wherein the primary cyclone comprises a housing, the housing comprises a cylinder at the upper end and a cone at the lower end, a dust exhaust pipe is arranged at the bottom of the cone, an air inlet pipe is arranged on the outer wall of the cylinder, and an exhaust pipe is arranged at the top of the cylinder;
the structure of the secondary cyclone is completely the same as that of the primary cyclone.
5. The device for treating the volatile organic waste gas in furniture spraying according to claim 4, wherein the fixed bed is a drawer type activated carbon adsorption tank or an activated carbon packed bed.
6. The device for treating the volatile organic waste gas in furniture spraying according to claim 5, wherein an inlet pipe of the primary cyclone is communicated with a discharge pipeline of the volatile organic waste gas, an exhaust pipe of the primary cyclone is communicated with an inlet pipe of the secondary cyclone, and an exhaust pipe of the secondary cyclone is communicated with an inlet pipe of a bag-type dust collector; the exhaust pipe of the bag-type dust collector is communicated with the air inlet pipe of the drawer-type activated carbon adsorption box or the activated carbon packed bed, and a tail gas discharge port is formed in the top of the drawer-type activated carbon adsorption box or the activated carbon packed bed.
7. The device for treating the exhaust gas of furniture spraying according to claim 6, further comprising a dry filter disposed between the exhaust pipe of the exhaust gas of furniture spraying and the primary cyclone.
8. The device for treating the volatile organic waste gas in the furniture spraying process according to claim 6, wherein the dust exhaust pipes of the primary cyclone and the secondary cyclone are communicated with the air inlet pipe of the primary cyclone;
and a dust exhaust pipe arranged in the bag-type dust collector is communicated with an air inlet pipe of the primary cyclone.
9. The device for treating the volatile organic waste gas in the furniture spraying process as claimed in claim 1, wherein the activated carbon arranged in the primary cyclone and the secondary cyclone is powdered activated carbon, and the activated carbon arranged in the fixed bed is granular activated carbon.
10. The device for treating the volatile organic waste gas in the furniture spraying process according to claim 1, wherein strong hydrophobic modified activated carbon is arranged in the primary cyclone, the secondary cyclone and the fixed bed;
wherein, the first-stage cyclone and the second-stage cyclone are provided with strong hydrophobic modified powdery activated carbon with the grain diameter of more than 200 meshes; strong hydrophobic modified granular activated carbon with the grain diameter of 20-40 meshes is arranged in the fixed bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221926750.8U CN218011959U (en) | 2022-07-25 | 2022-07-25 | A processing apparatus that is arranged in furniture spraying volatility organic waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221926750.8U CN218011959U (en) | 2022-07-25 | 2022-07-25 | A processing apparatus that is arranged in furniture spraying volatility organic waste gas |
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| Publication Number | Publication Date |
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| CN218011959U true CN218011959U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221926750.8U Active CN218011959U (en) | 2022-07-25 | 2022-07-25 | A processing apparatus that is arranged in furniture spraying volatility organic waste gas |
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| Country | Link |
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| CN (1) | CN218011959U (en) |
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