CN213995402U - Tail gas purification system of incineration treatment equipment - Google Patents
Tail gas purification system of incineration treatment equipment Download PDFInfo
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- CN213995402U CN213995402U CN202021637351.0U CN202021637351U CN213995402U CN 213995402 U CN213995402 U CN 213995402U CN 202021637351 U CN202021637351 U CN 202021637351U CN 213995402 U CN213995402 U CN 213995402U
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Abstract
The utility model discloses a tail gas purification system of incineration disposal equipment, it includes the spray quench tower, the spray absorption tower, the fog-water separator, the cooling tank, the sedimentation tank, mix pond and clarification tank, the spray quench tower is through setting up atomizing nozzle at the spray quench tower top, utilize atomizing nozzle to atomize into the fine fog droplet with cooling solution and send into the spray quench tower in, the fog droplet that is atomized receives ascending hot flue gas effect, form the high density region of a fog droplet suspension near atomizing nozzle fog, when the flue gas passes this region, the heat in the flue gas is evenly and fully absorbed by the fog droplet, can be in the short time rapidly with the flue gas cooling that the pretreatment system sent out to about 200 ℃, thereby suppress the regeneration of dioxin effectively; and the fog drops can be quickly evaporated and sent into the spray absorption tower along with the flue gas, so that the alkali liquor is prevented from being adhered to the wall, the corrosion is prevented, and the bottom of the spray quenching tower cannot generate sewage.
Description
Technical Field
The utility model belongs to the technical field of waste residue waste liquid treatment, especially, relate to an incineration disposal equipment's tail gas clean-up system.
Background
In the industrial production process, a large amount of waste liquid, waste gas and waste residue are generated, most of the waste liquid, the waste gas and the waste residue are treated by a chemical detoxification method and a biodegradation method, most of treatment methods are actually a concentration technology, and the toxicity of the concentrated solid, semisolid, sludge or liquid is increased or decreased. The traditional methods of landfill, surface pond and waste stacking are used as final disposal, which causes accidents such as serious water pollution and the like. Thus, incineration disposal has many irreplaceable advantages.
Although the number of incineration equipment is rapidly increasing at present, the problems of energy-saving management, pollutant emission management and safety management of incineration treatment are increasingly highlighted. Because a large amount of high-heat flue gas is generated after the waste liquid, the waste gas and the waste residue are incinerated, in order to achieve the purposes of energy conservation and emission reduction, most of the high-heat flue gas adopt the times of multiple heat exchange to achieve energy recovery as high as possible, namely, the lower the temperature of the finally discharged gas is, the better the high-heat flue gas is; and the toxic and harmful gases in the smoke are eliminated or reduced in a targeted manner. However, the existing tail gas purification systems have the problems of more or less complex process, high possibility of equipment corrosion by acid and alkali substances, secondary sewage generation, substandard dioxin emission and the like, so that tail gas is not treated reasonably and efficiently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an incineration disposal equipment's tail gas clean system can restrain the dioxin regeneration, reduces sewage and regenerates, reduces the corruption of acid-base material pair equipment, ensures that the flue gas reaches the effect of nontoxic, smokeless, harmless, odorless emission.
In order to achieve the purpose, the utility model provides a tail gas purification system of incineration treatment equipment, it is connected between pretreatment system and exhaust system, and tail gas purification system includes spraying quench tower, spraying absorption tower, fog water separator, cooling tank, sedimentation tank, mixing tank and clarification tank, the flue gas import of spraying quench tower with pretreatment system is connected, the exhanst gas outlet of spraying quench tower with the flue gas import of spraying absorption tower is connected, the exhanst gas outlet of spraying absorption tower with the flue gas import of fog water separator is connected, the exhanst gas outlet of fog water separator with exhaust system is connected; the upper part of the sedimentation tank, the upper part of the mixing tank and the upper part of the clarification tank are communicated in sequence; the top of the spray quenching tower is provided with a plurality of atomizing nozzles, the cooling pool is connected with the liquid channels of the atomizing nozzles through a first delivery pump, and the gas channels of the atomizing nozzles are connected with a compressed air storage tank; the flue gas inlet of the spray quenching tower is arranged at the bottom of the spray quenching tower; the top of the spray absorption tower is provided with a plurality of spray headers, and the clarification tank is connected with the spray headers through a second delivery pump; the flue gas inlet of the spray absorption tower is arranged at the bottom of the spray absorption tower; and the sedimentation tank is connected with a liquid outlet at the bottom of the spray absorption tower.
As the utility model discloses preferred scheme, incineration disposal equipment's tail gas clean-up system still includes dry powder injection apparatus and dry-type dust filter, dry powder injection apparatus with the dry-type dust filter connects gradually spray the exhanst gas outlet of quench tower with spray the connecting pipeline between the flue gas import of absorption tower.
As the preferable scheme of the utility model, the dry powder injection device comprises an activated carbon powder storage tank, a calcium oxide powder storage tank, a roots high pressure fan and a venturi reactor, the flue gas outlet of the spray quench tower is connected with the flue gas inlet of the venturi reactor, the flue gas outlet of the venturi reactor is connected with the flue gas inlet of the dry dust filter, and the flue gas outlet of the dry dust filter is connected with the flue gas inlet of the spray absorption tower; and the activated carbon powder in the activated carbon powder storage tank and the calcium oxide powder in the calcium oxide powder storage tank are sprayed into the Venturi reactor through the Roots high-pressure fan.
As the preferred proposal of the utility model, the dry dust filter is a bag-type dust collector.
As the preferred proposal of the utility model, a first valve is arranged on one side of the flue gas inlet of the Venturi reactor.
As the preferred proposal of the utility model, the bag-type dust collector is connected with the compressed air storage tank.
As the preferred scheme of the utility model, the compressed air storage tank is connected with air compressor.
As the utility model discloses preferred scheme, spray quench tower's exhanst gas outlet with be connected with emergent bypass pipeline between spray absorption tower's the gas inlet, be equipped with the second valve on the emergent bypass pipeline.
As the utility model discloses preferred scheme, be equipped with the pH value sensor who is arranged in detecting mixed pond solution pH valve on the mixed pond.
As a preferred scheme of the utility model, the tail gas purification system of the incineration treatment equipment further comprises a control system, wherein the control system comprises a PLC central controller, a first temperature sensor, a second temperature sensor and a third temperature sensor;
the first temperature sensor is arranged on a connecting pipeline between a flue gas outlet of the spray quenching tower and a flue gas inlet of the venturi reactor, the first temperature sensor is electrically connected with a first input end of the PLC central controller, and the first valve is electrically connected with a first output end of the PLC central controller;
the second temperature sensor is arranged on a connecting pipeline between a flue gas outlet of the spray quenching tower and a flue gas inlet of the venturi reactor, the second temperature sensor is electrically connected with a second input end of the PLC central controller, and the first conveying pump is electrically connected with a second output end of the PLC central controller;
the third temperature sensor is arranged on a connecting pipeline between a flue gas outlet of the spray absorption tower and a flue gas inlet of the fog-water separator, the third temperature sensor is electrically connected with a third input end of the PLC central controller, and the second delivery pump is electrically connected with a third output end of the PLC central controller.
Implement the utility model provides a pair of incineration disposal equipment's tail gas clean-up system, compared with the prior art, its beneficial effect lies in:
(1) the utility model discloses a spray quench tower is through setting up atomizing nozzle at its top, utilize atomizing nozzle to atomize into the fine fog drop with cooling solution and send into spray quench tower in, by the effect of ascending hot flue gas of atomizing fog drop, form a high density region of fog drop suspension near atomizing nozzle fog, when the flue gas passes this region, the heat in the flue gas is evenly and fully absorbed by the fog drop, can be in the short time rapidly with the flue gas cooling that the pretreatment system sent out to about 200 ℃, thereby inhibited the regeneration of dioxin effectively; the fog drops can be quickly evaporated and sent into the spray absorption tower along with the flue gas, so that the alkali liquor is prevented from being adhered to the wall, the corrosion is prevented, and the bottom of the spray quench tower cannot generate sewage; in addition, when the alkali liquor is used as the cooling solution, atomized alkali liquor fog drops can also be subjected to neutralization reaction with acidic substances in the flue gas, and the subsequent treatment efficiency of the tail gas is improved.
(2) The utility model discloses a spray the absorption tower and adopt alkali lye to spray with flue gas direct contact, can get rid of the acidic material and the poisonous and harmful substance in the flue gas completely effectively, ensure that the flue gas is discharge to reach standard.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a schematic structural diagram of a tail gas purification system of an incineration disposal device provided by the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the machine or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1, the tail gas purification system of an incineration disposal apparatus according to a preferred embodiment of the present invention is connected between a pretreatment system and an exhaust system, and includes a spray quench tower 1, a spray absorption tower 2, a mist-water separator 3, a cooling tank 4, a sedimentation tank 5, a mixing tank 6 and a clarification tank 7, wherein a flue gas inlet of the spray quench tower 1 is connected with the pretreatment system, a flue gas outlet of the spray quench tower 1 is connected with a flue gas inlet of the spray absorption tower 2, a flue gas outlet of the spray absorption tower 2 is connected with a flue gas inlet of the mist-water separator 3, and a flue gas outlet of the mist-water separator 3 is connected with the exhaust system; the upper part of the sedimentation tank 5, the upper part of the mixing tank 6 and the upper part of the clarification tank 7 are communicated in sequence; the top of the spray quenching tower 1 is provided with a plurality of atomizing nozzles 8, the cooling pool 4 is connected with the liquid channels of the atomizing nozzles 8 through a first delivery pump 23, and the gas channels of the atomizing nozzles 8 are connected with a compressed air storage tank 9; the flue gas inlet of the spray quenching tower 1 is arranged at the bottom of the spray quenching tower 1; the top of the spray absorption tower 2 is provided with a plurality of spray headers, and the clarification tank 7 is connected with the spray headers through a second delivery pump 24; the flue gas inlet of the spray absorption tower 2 is arranged at the bottom of the spray absorption tower 2; the sedimentation tank 5 is connected with a liquid outlet at the bottom of the spray absorption tower 2. Wherein, the pretreatment system includes but is not limited to pyrolysis system and waste heat recovery system. Therefore, the flue gas sent out by the pretreatment system can be quickly cooled to about 200 ℃ in a short time by arranging the spray quenching tower 1, so that the regeneration of dioxin is effectively inhibited; meanwhile, by arranging the spray absorption tower 2 and adopting alkali liquor to spray and directly contact with the flue gas, acidic substances and toxic and harmful substances in the flue gas can be effectively and completely removed, and the standard emission of the flue gas is ensured.
It should be further noted that, because the cooling solution (cooling water or alkali liquor) in the cooling tank 4 is sent into the spray quenching tower 1 through the atomizing nozzle 8 at the top of the spray quenching tower 1, the cooling solution is atomized into fine mist drops by the atomizing nozzle 8, the atomized mist drops are acted by the upward hot flue gas, a high-density area with suspended mist drops is formed near the mist of the atomizing nozzle 8, when the flue gas passes through the area, the heat in the flue gas is uniformly and fully absorbed by the mist drops, and the mist drops can be rapidly evaporated and sent into the spray absorption tower 2 along with the flue gas, thereby preventing the alkali liquor from sticking to the wall and preventing corrosion, and no sewage is generated at the bottom of the spray quenching tower 1; in addition, when the alkali liquor is used as the cooling solution, atomized alkali liquor fog drops can also be subjected to neutralization reaction with acidic substances in the flue gas, and the subsequent treatment efficiency of the tail gas is improved.
Exemplarily, the tail gas purification system of the incineration treatment equipment further comprises a dry powder injection device and a dry dust filtering device 14, and the dry powder injection device and the dry dust filtering device 14 are sequentially connected to a connecting pipeline between the flue gas outlet of the spray quenching tower 1 and the flue gas inlet of the spray absorption tower 2. In this embodiment, the dry powder spraying device includes an activated carbon powder storage tank 10, a calcium oxide powder storage tank 11, a roots high-pressure blower 12 and a venturi reactor 13, a flue gas outlet of the spray quenching tower 1 is connected with a flue gas inlet of the venturi reactor 13, a flue gas outlet of the venturi reactor 13 is connected with a flue gas inlet of the dry dust filter 14, and a flue gas outlet of the dry dust filter 14 is connected with a flue gas inlet of the spray absorption tower 2; the activated carbon powder in the activated carbon powder storage tank 10 and the calcium oxide powder in the calcium oxide powder storage tank 11 are sprayed into the venturi reactor 13 through the roots high-pressure fan 12. Therefore, through the arrangement of the dry powder injection device and the dry dust filtering device 14, on one hand, the activated carbon powder is injected into the venturi reactor 13, dioxin-like substances at low temperature (200 ℃) are very easy to be adsorbed by the activated carbon, the activated carbon powder is tangentially injected into the venturi reactor 13 and then is mixed with flue gas in a flue to be preliminarily adsorbed, the flue gas mixed with the activated carbon powder enters the bag-type dust remover, the activated carbon powder is adsorbed to the surface of the filter bag, harmful substances are continuously adsorbed on the surface of the filter bag, and the removal rate of the dioxin-like substances is remarkably improved; in addition, the addition of activated carbon powder to the flue gas is also very effective in removing mercury from the flue gas. On the other hand, calcium oxide powder is sprayed into the venturi reactor 13, and a large amount of water is evaporated by the spray quenching tower 1, so that the moisture content in the flue gas entering the venturi reactor 13 is high, the calcium oxide powder (namely, quicklime) is directly sprayed, slaked lime is generated by the reaction of the moisture in the flue gas and the quicklime and is mixed with acidic substances in the flue gas to carry out primary neutralization and absorption reaction, the flue gas mixed with the calcium oxide powder enters the dry dust filter 14, the calcium oxide powder is adsorbed to the surface of the filter element, and the neutralization reaction is continuously carried out on the surface of the filter element and trace acidic substances, so that the removal rate of the acidic gases is improved; meanwhile, the calcium oxide powder can also absorb a large amount of water vapor in the flue gas, so that the normal use of the filter bag is effectively ensured, and if necessary, a drying device can be additionally arranged before entering the bag-type dust collector.
Illustratively, the dry dust filter 14 is preferably a bag-type dust collector. Further, the bag-type dust collector is connected with the compressed air storage tank 9. Therefore, the ash cleaning medium adopts compressed air, and high-pressure gas pulses of the compressed air storage tank 9 are used for blowing the filter bag to clean the accumulated ash on the filter bag.
Illustratively, an air compressor 15 is connected to the compressed air storage tank 9. This air compressor 15 can continuously supply compressed air to compressed air storage tank 9, guarantees that compressed air storage tank 9 internal gas pressure is stable, ensures equipment normal operating.
Illustratively, a first valve 16 is provided on the side of the flue gas inlet near the venturi reactor 13, and the first valve 16 is preferably a pneumatic butterfly valve.
Illustratively, an emergency bypass pipeline 17 is connected between the flue gas outlet of the spray quenching tower 1 and the flue gas inlet of the spray absorption tower 2, a second valve 18 is arranged on the emergency bypass pipeline 17, and the second valve 18 is preferably a pneumatic butterfly valve and is used for ensuring that the first valve 16 is closed and the second valve 18 is opened when a cloth bag dust removal fails or is overhauled, so as to ensure the normal operation of equipment; meanwhile, the waste gas directly enters the spray absorption tower 2 for sufficient absorption without a dry powder injection device and a dry dust filter 14, and can also reach the standard for emission.
Illustratively, a pH sensor 19 for detecting the pH of the solution in the mixing tank 6 is disposed on the mixing tank 6, so that a user can mix the alkali solution solvent into the mixing tank 6 according to the pH of the solution in the mixing tank 6.
Illustratively, in order to enable the system to have a high automation level, the temperature of the flue gas entering and exiting each component can be automatically controlled, and the flue gas can be automatically adjusted and switched without disturbance, so the tail gas purification system of the incineration treatment equipment further comprises a control system, and the control system comprises a PLC central controller, a first temperature sensor 20, a second temperature sensor 21 and a third temperature sensor 22. The specific settings are as follows:
the first temperature sensor 20 is installed on a connecting pipeline between a flue gas outlet of the spray quenching tower 1 and a flue gas inlet of the venturi reactor 13, the first temperature sensor 20 is electrically connected with a first input end of the PLC central controller, and the first valve 16 is electrically connected with a first output end of the PLC central controller; therefore, the first temperature sensor 20 is used for detecting the temperature of the flue gas coming out of the spray quenching tower 1, and the PLC central controller can control the opening or closing of the first valve 16 according to the temperature of the flue gas coming out of the spray quenching tower 1, so that the filter bag is prevented from being damaged due to overhigh or overlow temperature of the flue gas entering the bag-type dust collector.
The second temperature sensor 21 is installed on a connecting pipeline between a flue gas outlet of the spray quenching tower 1 and a flue gas inlet of the venturi reactor 13, the second temperature sensor 21 is electrically connected with a second input end of the PLC central controller, and the first delivery pump 23 is electrically connected with a second output end of the PLC central controller; therefore, the second temperature sensor 21 is used for detecting the temperature of the flue gas coming out of the spray quenching tower 1, and the PLC central controller can control the output power of the first delivery pump 23 according to the temperature of the flue gas coming out of the spray quenching tower 1 so as to ensure that the temperature of the flue gas after quenching and cooling is about 200 ℃.
The third temperature sensor 22 is installed on a connecting pipeline between the flue gas outlet of the spray absorption tower 2 and the flue gas inlet of the mist-water separator 3, the third temperature sensor 22 is electrically connected with a third input end of the PLC central controller, and the second delivery pump 24 is electrically connected with a third output end of the PLC central controller. Therefore, the third temperature sensor 22 is used for detecting the temperature of the flue gas coming out of the spray absorption tower 2, and the PLC central controller can control the output power of the second delivery pump 24 according to the temperature of the flue gas coming out of the spray absorption tower 2 so as to ensure that the temperature of the flue gas can meet the emission standard.
Illustratively, the atomizing nozzle 8 comprises an inner nozzle and an outer nozzle, the inner nozzle is sleeved in the outer nozzle, and an annular gap is formed between the inner nozzle and the outer nozzle; the hollow channel of the inner nozzle is a liquid channel, and the annular gap between the inner nozzle and the outer nozzle is a gas channel.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, 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 in specific cases to those skilled in the art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A tail gas purification system of incineration treatment equipment is connected between a pretreatment system and an exhaust system and is characterized by comprising a spray quench tower, a spray absorption tower, a mist-water separator, a cooling tank, a sedimentation tank, a mixing tank and a clarification tank, wherein a flue gas inlet of the spray quench tower is connected with the pretreatment system; the upper part of the sedimentation tank, the upper part of the mixing tank and the upper part of the clarification tank are communicated in sequence; the top of the spray quenching tower is provided with a plurality of atomizing nozzles, the cooling pool is connected with the liquid channels of the atomizing nozzles through a first delivery pump, and the gas channels of the atomizing nozzles are connected with a compressed air storage tank; the flue gas inlet of the spray quenching tower is arranged at the bottom of the spray quenching tower; the top of the spray absorption tower is provided with a plurality of spray headers, and the clarification tank is connected with the spray headers through a second delivery pump; the flue gas inlet of the spray absorption tower is arranged at the bottom of the spray absorption tower; and the sedimentation tank is connected with a liquid outlet at the bottom of the spray absorption tower.
2. The tail gas purification system of incineration treatment equipment according to claim 1, further comprising a dry powder injection device and a dry dust filtering device, wherein the dry powder injection device and the dry dust filtering device are sequentially connected to a connecting pipeline between the flue gas outlet of the spray quench tower and the flue gas inlet of the spray absorption tower.
3. The tail gas purification system of incineration treatment equipment according to claim 2, wherein the dry powder injection device comprises an activated carbon powder storage tank, a calcium oxide powder storage tank, a roots high-pressure blower and a venturi reactor, a flue gas outlet of the spray quenching tower is connected with a flue gas inlet of the venturi reactor, a flue gas outlet of the venturi reactor is connected with a flue gas inlet of the dry dust filter device, and a flue gas outlet of the dry dust filter device is connected with a flue gas inlet of the spray absorption tower; and the activated carbon powder in the activated carbon powder storage tank and the calcium oxide powder in the calcium oxide powder storage tank are sprayed into the Venturi reactor through the Roots high-pressure fan.
4. The tail gas purification system of incineration treatment equipment according to claim 2 or 3, characterized in that the dry dust filter is a bag-type dust collector.
5. The tail gas purification system of incineration treatment equipment according to claim 3, characterized in that a first valve is provided at a side close to the flue gas inlet of the venturi reactor.
6. The tail gas purification system of incineration treatment equipment according to claim 4, wherein the bag-type dust collector is connected to the compressed air storage tank.
7. The tail gas purification system of incineration disposal equipment according to claim 1 or 6, wherein an air compressor is connected to the compressed air storage tank.
8. The tail gas purification system of incineration treatment equipment according to claim 1, wherein an emergency bypass pipeline is connected between the flue gas outlet of the spray quenching tower and the flue gas inlet of the spray absorption tower, and a second valve is arranged on the emergency bypass pipeline.
9. The tail gas purification system of incineration treatment equipment according to claim 1, wherein a pH sensor for detecting the pH of the solution in the mixing tank is arranged on the mixing tank.
10. The tail gas purification system of incineration treatment equipment according to claim 5, further comprising a control system, wherein the control system comprises a PLC central controller, a first temperature sensor, a second temperature sensor and a third temperature sensor;
the first temperature sensor is arranged on a connecting pipeline between a flue gas outlet of the spray quenching tower and a flue gas inlet of the venturi reactor, the first temperature sensor is electrically connected with a first input end of the PLC central controller, and the first valve is electrically connected with a first output end of the PLC central controller;
the second temperature sensor is arranged on a connecting pipeline between a flue gas outlet of the spray quenching tower and a flue gas inlet of the venturi reactor, the second temperature sensor is electrically connected with a second input end of the PLC central controller, and the first conveying pump is electrically connected with a second output end of the PLC central controller;
the third temperature sensor is arranged on a connecting pipeline between a flue gas outlet of the spray absorption tower and a flue gas inlet of the fog-water separator, the third temperature sensor is electrically connected with a third input end of the PLC central controller, and the second delivery pump is electrically connected with a third output end of the PLC central controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021637351.0U CN213995402U (en) | 2020-08-07 | 2020-08-07 | Tail gas purification system of incineration treatment equipment |
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| CN202021637351.0U CN213995402U (en) | 2020-08-07 | 2020-08-07 | Tail gas purification system of incineration treatment equipment |
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| CN213995402U true CN213995402U (en) | 2021-08-20 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Tail gas purification system of incineration treatment equipment Effective date of registration: 20220506 Granted publication date: 20210820 Pledgee: Agricultural Bank of China Limited Qingyuan Chengnan sub branch Pledgor: Guangdong Yicheng Environmental Protection Technology Co.,Ltd. Registration number: Y2022980005159 |
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Date of cancellation: 20230817 Granted publication date: 20210820 Pledgee: Agricultural Bank of China Limited Qingyuan Chengnan sub branch Pledgor: Guangdong Yicheng Environmental Protection Technology Co.,Ltd. Registration number: Y2022980005159 |
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| CP02 | Change in the address of a patent holder |
Address after: Room 101, No. 133-8 Yanling Road, Tianhe District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangdong Yicheng Environmental Protection Technology Co.,Ltd. Address before: 511520 No. 128, Tianan Zhigu Exhibition Service Center, No. 18, Chuangxing Avenue, science and Technology Innovation Park, Qingyuan high tech Zone, Qingyuan City, Guangdong Province Patentee before: Guangdong Yicheng Environmental Protection Technology Co.,Ltd. |
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