CN216441352U - Paint waste treatment with waste system - Google Patents
Paint waste treatment with waste system Download PDFInfo
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- CN216441352U CN216441352U CN202123326121.XU CN202123326121U CN216441352U CN 216441352 U CN216441352 U CN 216441352U CN 202123326121 U CN202123326121 U CN 202123326121U CN 216441352 U CN216441352 U CN 216441352U
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Abstract
The utility model provides a system for treating waste by waste for paint waste. Including paint waste residue preprocessing device and integrated processing apparatus, paint waste residue preprocessing device includes the dry conveyer of paint waste residue, cyclone and electronic auger, the first pan feeding mouth that is equipped with on the electronic auger is connected to the dry conveyer one end bottom of paint waste residue, the second pan feeding mouth that is equipped with on cyclone bottom and the electronic auger is connected, integrated processing apparatus includes the pyrolysis oven, regenerator and desorption room, the pyrolysis oven top is equipped with the pyrolysis oven entry, the discharge gate and the pyrolysis oven of electronic auger are connected, the pyrolysis oven passes through the pyrolysis passageway and is connected with the regenerator, the regenerator passes through heat exchanger and is connected with the desorption room. According to the utility model, paint waste is used as fuel, so that energy recycling and mutual utilization among system devices are realized, and the effects of treating waste by waste, protecting the environment and saving energy are achieved.
Description
Technical Field
The utility model relates to the technical field of treating wastes with processes of wastes, in particular to a system for treating wastes with processes of wastes and paint wastes.
Background
At present, a combustion method is generally adopted for treating paint waste residues, but a large amount of gas harmful to the environment can be generated in the combustion process, harmful substances such as oxynitride, oxysulfide, hydrogen chloride and the like can be generated in the process of treating the paint waste residues by combustion, particularly strong carcinogen dioxin can be generated, the environment can be seriously polluted, and therefore, the method has great limitation, and secondary pollution is caused; at present, coating waste gas is treated by adopting an activated carbon adsorption desorption-catalytic combustion mode, but the desorption-catalytic combustion process needs to consume more energy, so that two paint waste treatment methods have certain limitations.
For example, the current technical means discloses an environmental protection device for treating wastes with wastes in chemical hazardous wastes, which comprises: the system comprises a waste solid feed pretreatment and waste liquid feed system, an incineration system, a waste heat recovery system, a flue gas purification and discharge system and a residue recovery system which are sequentially arranged, wherein the incineration system comprises a rotary incineration kiln, a secondary combustion chamber and a combined burner, an outlet of the rotary incineration kiln is connected with the secondary combustion chamber through a connecting flue, and the top of the secondary combustion chamber is provided with the combined burner; the second combustion chamber is provided with an explosion-proof door; the waste heat recovery system comprises a waste heat boiler; the flue gas purification and discharge system comprises a quench tower, a semi-dry neutralization tower, a bag-type dust remover, an active coke adsorption tower, an induced draft fan and a chimney which are connected in sequence. This regard as useless environmental protection device of controlling waste is through burning chemical industry hazardous waste and handling, recycle waste heat, recovery iron, salt etc. reduce treatment cost, reach the comprehensive utilization of waste, the purpose of environmental protection, the device is through make full use of waste incineration energy reach the effect of controlling waste with useless, nevertheless can not realize the mutual cyclic utilization of waste energy, and waste incineration still need consume more energy.
SUMMERY OF THE UTILITY MODEL
The utility model provides a system for treating wastes with processes of wastes against one another by using paint waste residues as starting fuel, and heat energy is recycled in the system to achieve the effect of treating wastes with processes of wastes against one another.
In order to solve the technical problems, the utility model adopts the technical scheme that: a paint waste treatment by waste system, which comprises a paint waste residue pretreatment device and a comprehensive treatment device, the paint waste residue pretreatment device comprises a paint waste residue drying conveyor, a cyclone dust collector and an electric packing auger, one end of the paint waste residue drying conveyor is provided with a paint wet waste residue inlet, the top of the other end of the paint waste residue drying conveyor is connected with the cyclone dust collector through a gas channel, the bottom of the paint waste residue drying conveyor is connected with a first feeding port arranged on the electric auger, the bottom of the cyclone dust collector is connected with a second feeding port arranged on the electric auger, the comprehensive treatment device comprises a pyrolysis furnace, a regenerative furnace and a desorption chamber, the top of the pyrolysis furnace is provided with a pyrolysis furnace inlet, the discharge port of the electric auger is connected with the pyrolysis furnace, the pyrolysis furnace is connected with the regenerative furnace through a pyrolysis channel, and the regenerative furnace is connected with the desorption chamber through a heat exchanger. Therefore, paint waste residue fuel is provided through the paint waste residue pretreatment device, pyrolysis gas generated by pyrolysis in the pyrolysis furnace is used as starting fuel for combustion of the regenerator, heat energy generated by combustion of the pyrolysis furnace is respectively provided for the regenerator and the desorption chamber, and organic waste gas generated by desorption is used as supplementary fuel for combustion at the regenerator, so that the requirement of extra heat sources and combustion-supporting resources for a desorption-catalytic combustion mode is reduced.
Furthermore, one end of the regenerative furnace is connected with the air inlet of the desorption chamber through a heat exchanger, and the other end of the regenerative furnace is connected with the air outlet of the desorption chamber. Therefore, the heat energy generated by the regenerative furnace is transmitted into the desorption chamber through the heat exchanger to provide heat energy for the desorption chamber, and the organic waste gas generated by desorption is conveyed back to the regenerative furnace by the desorption chamber to be used as supplementary fuel for combustion of the regenerative furnace.
Furthermore, the heat exchanger is also connected with a purified gas discharge fan, and the purified gas discharge fan is connected with a purified gas inlet arranged at the bottom of one end, far away from the cyclone dust collector, of the paint waste residue drying conveyor through a pipeline. Thus, a portion of the high temperature gas enters the paint waste drying conveyor from the purge gas inlet to dry the wet paint waste, thereby reducing the need for a separate heat source for the dryer.
Further, the regenerative furnace is connected with the purified gas discharge fan through a throttle valve. Through setting up the choke valve, steerable gas flow, partial gas gets into the wet waste residue of paint waste residue drying conveyor drying paint through purifying the gas inlet, and remaining gas gets into desorption room through heat exchanger, satisfies respective heat demand.
Furthermore, a conveyor belt is arranged in the paint waste residue drying conveyor. The paint waste residue drying conveyor is internally provided with the conveyor belt, so that the paint waste residue entering from the paint wet waste residue inlet can be conveyed to the electric auger.
Further, the outer wall of pyrolysis oven is equipped with the heat exchange layer, the pyrolysis oven bottom is equipped with waste residue discharging channel, waste residue discharging channel is connected with the mucking machine. The bottom of the pyrolysis furnace is provided with a waste residue discharge channel, so that the burnt paint waste residue is discharged.
Furthermore, an air inlet communicated with the pyrolysis channel is formed in one side, close to the regenerative furnace, of the heat exchange layer. Through setting up the air inlet that switches on at the pyrolysis passageway, outside air accessible passageway gets into the regenerator, helps improving combustion efficiency, provides the heat guarantee.
Furthermore, the outside of the waste residue discharge channel is connected with a pyrolysis fan. The heat exchange layer is cooled by the pyrolysis fan, so that the internal temperature of the waste residue discharge channel is reduced, and the machine is prevented from being damaged due to overhigh temperature.
Furthermore, the pyrolysis channel is communicated with a combustion fan. The combustion effect in the regenerative furnace is further improved by arranging the combustion fan.
Furthermore, the top of the cyclone dust collector is connected with an inlet of the waste gas spray tower through a pipeline. After the regenerative furnace passes through a part of high-temperature gas entering the paint waste residue drying conveyor through the throttle valve to dry the paint wet waste residue, the paint wet waste residue is discharged through a pipeline at the top of the cyclone dust collector, and the exhaust port is provided with an inlet of a waste gas spray tower, so that the gas is discharged after reaching the standard.
Compared with the prior art, the method has the advantages that: the pyrolysis gas generated by pyrolysis of the paint waste residue is used as starting fuel for combustion of the regenerator, the heat energy generated by combustion is respectively provided for the regenerator, the desorption chamber and the paint waste residue drying conveyor, and the organic waste gas generated by desorption is used as supplementary fuel for combustion at the regenerator, so that the processes are repeated to form a cycle, and the results of treating waste with waste, protecting the environment and saving energy are achieved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view showing the construction of a paint slag pretreatment apparatus according to the present invention.
FIG. 3 is a schematic view of the integrated processing apparatus according to the present invention.
The attached drawings are marked as follows: 11-paint waste residue drying conveyor, 12-cyclone dust collector, 13-electric auger, 111-paint wet waste residue inlet, 112-conveyor belt, 21-pyrolysis furnace, 22-regenerative furnace, 23-desorption chamber, 211-heat exchange layer, 212-pyrolysis fan, 213-slag extractor, 214-combustion fan, 215-pyrolysis furnace inlet, 221-heat exchanger, 222-throttle valve, 31-purified gas inlet, 32-waste gas spray tower inlet, and 33-purified gas discharge fan.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the utility model is further described in detail by the specific embodiments and the accompanying drawings:
example 1
As shown in fig. 1, the system for treating waste by waste of paint waste comprises a paint waste residue pretreatment device and a comprehensive treatment device, wherein the paint waste residue pretreatment device comprises a paint waste residue drying conveyor 11, a cyclone dust collector 12 and an electric packing auger 13, and the comprehensive treatment device comprises a pyrolysis furnace 21, a regenerative furnace 22 and a desorption chamber 23.
In the embodiment, as shown in fig. 2, one end of the paint waste residue drying conveyor 11 is provided with a paint wet waste residue inlet 111, a conveyor belt 112 is arranged in the paint waste residue drying conveyor 11, waste residue in the paint wet waste residue inlet 111 is conveyed to the other end of the paint waste residue drying conveyor 11, the top of the other end of the paint waste residue drying conveyor 11 is connected with the cyclone dust collector 12 through a gas channel, the bottom of the other end of the paint waste residue drying conveyor 11 is connected with a first feeding port arranged on the electric auger 13 through a gas channel, dust generated in the drying process is collected through the cyclone dust collector 12, the bottom of the cyclone dust collector 12 is connected with a second feeding port arranged on the electric auger 13, the paint waste residue and the dust are conveyed to a comprehensive treatment device through the electric auger 13, as shown in fig. 3, the top of the pyrolysis furnace 21 is provided with a pyrolysis furnace inlet 215, a discharge port of the electric auger 13 is connected with the pyrolysis furnace 21, the pyrolysis furnace 21 is connected with a heat storage furnace 22 through a pyrolysis channel, the pyrolysis furnace 21 transfers the heat of the burnt waste residue to the regenerative furnace 22, one end of the regenerative furnace 22 is connected with the air inlet of the desorption chamber 23 through the heat exchanger 221, and the other end of the regenerative furnace 22 is connected with the air outlet of the desorption chamber 23. Thus, the paint waste residue enters the pyrolysis furnace 21 for combustion after being treated by the paint waste residue pretreatment device, heat energy generated by combustion is transmitted to the regenerative furnace 22, the regenerative furnace 22 transmits the heat energy to the desorption chamber 23 through the heat exchanger 221, the desorption chamber 23 transmits organic waste gas generated by desorption back to the regenerative furnace 22 through the air outlet of the desorption chamber 23 to be used as supplementary fuel for combustion at the regenerative furnace 22, extra heat sources and combustion-supporting resources required by a desorption-catalytic combustion mode are reduced, and energy recycling is realized.
Specifically, the heat exchanger 221 is further connected with a purified gas discharge fan 33, the purified gas discharge fan 33 is connected with a purified gas inlet 31 arranged at the bottom of one end, far away from the cyclone 12, of the paint waste residue drying conveyor 11 through a pipeline, the regenerator 22 is connected with the purified gas discharge fan 33 through a throttle valve 222, another part of high-temperature gas enters the paint waste residue drying conveyor 11 through the purified gas discharge fan 33, so that the requirement of an independent heat source for the dryer is reduced, the top of the cyclone 12 is connected with a waste gas spray tower inlet 32 through a pipeline, the high-temperature gas enters the cyclone 12 after drying the paint waste residue, and the high-temperature gas enters the waste gas spray tower inlet 32 through a pipeline to be treated and then is discharged.
Specifically, the outer wall of pyrolysis furnace 21 is equipped with heat exchange layer 211, one side that heat exchange layer 211 is close to regenerator 22 is equipped with the air inlet that switches on with the pyrolysis passageway, the pyrolysis passageway switches on with air inlet, can improve the combustion efficiency in the regenerator 22, save the resource, simultaneously, pyrolysis furnace 21 bottom is equipped with waste residue discharging channel, waste residue discharging channel is connected with mucking machine 213, can discharge the waste residue after the burning, guarantee the combustion effect in the pyrolysis furnace 21.
It should be mentioned otherwise that, the outside of the waste residue discharging channel is provided with the pyrolysis fan 212, the pyrolysis fan 212 cools the heat exchange layer 211, reduces the temperature in the waste residue discharging channel, avoids the waste residue from being too hot and damaging the machine, and the pyrolysis channel is provided with the combustion fan 214, and the combustion fan 214 can promote the combustion efficiency in the heat storage furnace.
The working principle of the embodiment is as follows: paint wet waste enters a paint waste drying conveyor 11 from a paint wet waste inlet 111 for drying, dust generated in the drying process is collected through a cyclone dust collector 12, then the paint waste and the dust enter a paint waste pyrolyzing furnace 21 through an electric packing auger 13 to be used as fuel of the pyrolyzing furnace 21 for pyrolysis in the pyrolyzing furnace 21, pyrolysis gas generated by pyrolysis is combusted at a regenerative furnace 22, part of heat energy generated by combustion at the position supplies energy to the regenerative furnace 22, part of heat energy supplies energy to a desorption chamber 23 through a heat exchanger 221, organic solvent which is originally adsorbed on the surface of active carbon is desorbed through hot air flow, concentrated waste gas generated by desorption enters the regenerative furnace 22 to be used as fuel for continuous combustion and energy supply, finally, part of high-temperature gas enters the paint waste drying conveyor 11 from a purified gas inlet 31 for drying the paint wet waste, enters a waste gas spraying tower inlet 32 at the front end of the original waste gas treatment system after passing through the cyclone dust collector 12, finally, the waste is discharged from the original exhaust funnel, and the circulation is formed, so that the effect of treating waste by waste is achieved.
Example 2
The difference between this embodiment and embodiment 1 is that the bottom of the pyrolysis furnace 21 is provided with a second electric auger for discharging the waste slag.
In the embodiment, as shown in fig. 2, one end of the paint waste residue drying conveyor 11 is provided with a paint wet waste residue inlet 111, a conveyor belt 112 is arranged in the paint waste residue drying conveyor 11, waste residue in the paint wet waste residue inlet 111 is conveyed to the other end of the paint waste residue drying conveyor 11, the top of the other end of the paint waste residue drying conveyor 11 is connected with the cyclone dust collector 12 through a gas channel, the bottom of the other end of the paint waste residue drying conveyor 11 is connected with a first feeding port arranged on the electric auger 13 through a gas channel, dust generated in the drying process is collected through the cyclone dust collector 12, the bottom of the cyclone dust collector 12 is connected with a second feeding port arranged on the electric auger 13, the paint waste residue and the dust are conveyed to a comprehensive treatment device through the electric auger 13, as shown in fig. 3, the top of the pyrolysis furnace 21 is provided with a pyrolysis furnace inlet 215, a discharge port of the electric auger 13 is connected with the pyrolysis furnace 21, the pyrolysis furnace 21 is connected with a heat storage furnace 22 through a pyrolysis channel, the pyrolysis furnace 21 transfers the heat of the burnt waste residue to the regenerative furnace 22, one end of the regenerative furnace 22 is connected with the air inlet of the desorption chamber 23 through the heat exchanger 221, and the other end of the regenerative furnace 22 is connected with the air outlet of the desorption chamber 23. Thus, the paint waste residue enters the pyrolysis furnace 21 for combustion after being treated by the paint waste residue pretreatment device, heat energy generated by combustion is transmitted to the regenerative furnace 22, the regenerative furnace 22 transmits the heat energy to the desorption chamber 23 through the heat exchanger 221, the desorption chamber 23 transmits organic waste gas generated by desorption back to the regenerative furnace 22 through the air outlet of the desorption chamber 23 to be used as supplementary fuel for combustion at the regenerative furnace 22, extra heat sources and combustion-supporting resources required by a desorption-catalytic combustion mode are reduced, and energy recycling is realized.
Specifically, the outer wall of pyrolysis oven 21 is equipped with heat exchange layer 211, and one side that heat exchange layer 211 is close to regenerator 22 is equipped with the air inlet that switches on with the pyrolysis passageway, and the pyrolysis passageway switches on with air inlet, can improve the combustion efficiency in the regenerator 22, saves the resource, and simultaneously, pyrolysis oven 21 bottom is equipped with the electronic auger of second, can be with the waste residue discharge after the burning, guarantees the combustion effect in the pyrolysis oven 21.
Example 3
The present embodiment is another preferred embodiment of the present invention, and is different from embodiment 1 in that a spraying device is disposed outside the slag discharging channel in this embodiment to cool the heat exchange layer 211.
In the embodiment, as shown in fig. 2, one end of the paint waste residue drying conveyor 11 is provided with a paint wet waste residue inlet 111, a conveyor belt 112 is arranged in the paint waste residue drying conveyor 11, waste residue in the paint wet waste residue inlet 111 is conveyed to the other end of the paint waste residue drying conveyor 11, the top of the other end of the paint waste residue drying conveyor 11 is connected with the cyclone dust collector 12 through a gas channel, the bottom of the other end of the paint waste residue drying conveyor 11 is connected with a first feeding port arranged on the electric auger 13 through a gas channel, dust generated in the drying process is collected through the cyclone dust collector 12, the bottom of the cyclone dust collector 12 is connected with a second feeding port arranged on the electric auger 13, the paint waste residue and the dust are conveyed to a comprehensive treatment device through the electric auger 13, as shown in fig. 3, the top of the pyrolysis furnace 21 is provided with a pyrolysis furnace inlet 215, a discharge port of the electric auger 13 is connected with the pyrolysis furnace 21, the pyrolysis furnace 21 is connected with a heat storage furnace 22 through a pyrolysis channel, the pyrolysis furnace 21 transfers the heat of the burnt waste residue to the regenerative furnace 22, one end of the regenerative furnace 22 is connected with the air inlet of the desorption chamber 23 through the heat exchanger 221, and the other end of the regenerative furnace 22 is connected with the air outlet of the desorption chamber 23. Thus, the paint waste residue enters the pyrolysis furnace 21 for combustion after being treated by the paint waste residue pretreatment device, heat energy generated by combustion is transmitted to the regenerative furnace 22, the regenerative furnace 22 transmits the heat energy to the desorption chamber 23 through the heat exchanger 221, the desorption chamber 23 transmits organic waste gas generated by desorption back to the regenerative furnace 22 through the air outlet of the desorption chamber 23 to be used as supplementary fuel for combustion at the regenerative furnace 22, extra heat sources and combustion-supporting resources required by a desorption-catalytic combustion mode are reduced, and energy recycling is realized.
Specifically, the outer wall of pyrolysis furnace 21 is equipped with heat exchange layer 211, one side that heat exchange layer 211 is close to regenerator 22 is equipped with the air inlet that switches on with the pyrolysis passageway, the pyrolysis passageway switches on with air inlet, can improve the combustion efficiency in the regenerator 22, save the resource, and simultaneously, pyrolysis furnace 21 bottom is equipped with waste residue discharging channel, waste residue discharging channel is connected with mucking machine 213, can discharge the waste residue after the burning, waste residue discharging channel outside is equipped with spray set and cools down for heat exchange layer 211, damage the machine when avoiding the too high waste residue temperature to slag tap.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a paint waste is with useless system of controlling waste, its characterized in that, including paint waste residue preprocessing device and integrated processing apparatus, paint waste residue preprocessing device includes paint waste residue drying conveyor (11), cyclone (12) and electronic auger (13), paint waste residue drying conveyor (11) one end is equipped with paint wet waste residue entry (111), paint waste residue drying conveyor (11) other end top pass through gas passage with cyclone (12) are connected, the bottom is connected the first pan feeding mouth that is equipped with on electronic auger (13), cyclone (12) bottom with the second pan feeding mouth that is equipped with on electronic auger (13) is connected, integrated processing apparatus includes pyrolysis oven (21), regenerator (22) and desorption room (23), pyrolysis oven (21) top is equipped with pyrolysis oven entry (215), the discharge gate of electronic auger (13) with pyrolysis oven (21) are connected, pyrolysis oven (21) through the pyrolysis passageway with regenerator (22) are connected, regenerator (22) through heat exchanger (221) with desorption room (23) are connected.
2. The paint waste treatment system according to claim 1, wherein one end of the regenerative furnace (22) is connected with an air inlet of the desorption chamber (23) through a heat exchanger (221), and the other end of the regenerative furnace (22) is connected with an air outlet of the desorption chamber (23).
3. The paint waste treatment system according to claim 1, wherein the heat exchanger (221) is further connected with a purified gas discharge fan (33), and the purified gas discharge fan (33) is connected with a purified gas inlet (31) formed in the bottom of one end, far away from the cyclone dust collector (12), of the paint waste drying conveyor (11) through a pipeline.
4. The paint waste reclamation system as recited in claim 3, wherein the regenerator (22) is connected to the purge gas exhaust fan (33) through a throttle valve (222).
5. The paint waste reclamation system as recited in claim 1, wherein a conveyor belt (112) is provided in the paint waste drying conveyor (11).
6. The paint waste treatment system according to claim 1, wherein the outer wall of the pyrolysis furnace (21) is provided with a heat exchange layer (211), the bottom of the pyrolysis furnace (21) is provided with a waste slag discharging channel, and the waste slag discharging channel is connected with a slag discharging machine (213).
7. The paint waste reclamation system as recited in claim 6, wherein an air inlet communicating with the pyrolysis channel is provided at a side of the heat exchange layer (211) adjacent to the regenerator (22).
8. The paint waste reclamation system as recited in claim 6, wherein the waste discharge channel is externally connected to a pyrolysis fan (212) provided therein.
9. The paint waste reclamation system as recited in claim 1, wherein the pyrolysis channel is further connected to a combustion fan (214) provided.
10. The paint waste reclamation system as recited in claim 1, wherein the top of the cyclone (12) is connected to the waste gas spray tower inlet (32) by a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326121.XU CN216441352U (en) | 2021-12-24 | 2021-12-24 | Paint waste treatment with waste system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326121.XU CN216441352U (en) | 2021-12-24 | 2021-12-24 | Paint waste treatment with waste system |
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| Publication Number | Publication Date |
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| CN216441352U true CN216441352U (en) | 2022-05-06 |
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| CN202123326121.XU Active CN216441352U (en) | 2021-12-24 | 2021-12-24 | Paint waste treatment with waste system |
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| CN (1) | CN216441352U (en) |
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2021
- 2021-12-24 CN CN202123326121.XU patent/CN216441352U/en active Active
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