CN211546309U - Conveying system for deeply dewatered sludge - Google Patents
Conveying system for deeply dewatered sludge Download PDFInfo
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- CN211546309U CN211546309U CN201922204955.XU CN201922204955U CN211546309U CN 211546309 U CN211546309 U CN 211546309U CN 201922204955 U CN201922204955 U CN 201922204955U CN 211546309 U CN211546309 U CN 211546309U
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Abstract
The utility model provides a conveying system of deep dehydration mud, through respectively installing a biax screw conveyer in the bottom left and right sides of storage storehouse, the problem of mud storage storehouse putty bridge has been solved, can also prevent effectively simultaneously the formation at balladeur train removal in-process dead angle, and still increase a set of pipeline that plays the lubrication action to the mud delivery in mud delivery pump exit, utilize high-pressure plunger pump to pour into the lubrication medium into pipeline resistance reduction system, infiltrate the deep dehydration mud in pipeline resistance reduction system pipeline, form resistance reduction lubrication liquid film, effectively reduce the resistance that deep dehydration mud produced in the process of pipeline transport, thereby realize the long distance transport of deep dehydration mud; in addition, the lubricating medium can utilize waste oil as a lubricant, so that comprehensive utilization of resources is realized.
Description
Technical Field
The utility model relates to a sludge treatment system of municipal sewage plant especially relates to a conveying system of degree of depth dehydration mud.
Background
After the sludge of the municipal sewage treatment plant is deeply dehydrated by the plate-and-frame filter pressing device, the water content is generally 50-60%, and the sludge is in a fine block shape, loose structure and no fluidity. The pipeline conveying system is adopted to convey the sludge to a treatment point, which is an important node for controlling sludge leakage and odor overflow, but the pipeline has large resistance loss along the way due to poor sludge fluidity, and has high requirement on the conveying pressure of the sludge conveying pump, so that the energy consumption and the equipment cost are high.
The existing deep dewatering sludge conveying system mainly comprises a sludge storage bin, a feeding sliding frame, a premixing double-shaft screw conveyor and a sludge conveying pump. The double-shaft screw conveyor is independently arranged in the middle of the bottom of the sludge storage bin and directly bears the extrusion of the deep dewatered sludge on the upper part, and the premixing double-shaft screw conveyor is easy to deform under pressure and has high failure rate; the deeply dehydrated sludge enters a bottom sludge delivery pump through a pre-mixing double-shaft screw conveyor and is delivered to each terminal treatment system through the sludge delivery pump. The problems that exist include: the storage bin has more accumulation dead angles, is easy to bridge, is not smooth in feeding and the like; meanwhile, the screw conveyor is arranged in the middle of the sludge storage bin and directly bears the extrusion of the deep dewatered sludge on the upper part, and the double-shaft screw conveyor is easy to deform under pressure, large in abrasion loss and high in failure rate; meanwhile, the sludge conveying pump is adopted, so that the energy consumption and the equipment cost are high.
SUMMERY OF THE UTILITY MODEL
In order to solve the current problem, the utility model provides a conveying system of degree of depth dehydration mud, through respectively installing a biax screw conveyer in the storage silo bottom left and right sides, the problem of sludge storage silo putty bridging has been solved, can also prevent the formation at balladeur train removal in-process dead angle effectively simultaneously, and still increase one set of pipeline that plays the lubrication action and fall the system of hindering to sludge conveying in sludge transfer pump exit, utilize high-pressure plunger pump to pour into lubricating medium into the pipeline and fall the system of hindering, fall the degree of depth dehydration mud of hindering in the system pipeline and infiltrate to the pipeline, it hinders lubricated liquid film to form to fall, effectively reduce the resistance that degree of depth dehydration mud produced at the in-process of pipeline transportation, thereby realize the long distance transport of degree of depth dehydration mud.
The technical proposal adopted by the utility model is that the utility model provides a conveying system for deep dehydration sludge, which comprises a sludge storage bin, a feeding sliding frame, a pre-mixing double-shaft screw conveyor, a sludge conveying pump and a hydraulic station, wherein the bottom of the sludge storage bin is provided with a first sludge outlet and a second sludge outlet which are respectively arranged at the left side and the right side of the bottom of the sludge storage bin, and is characterized in that a first double-shaft screw conveyor, a second double-shaft screw conveyor and a pipeline resistance reducing system with lubricating function are additionally arranged, the pre-mixing double-shaft screw conveyor is provided with a first sludge inlet and a second sludge inlet, the first sludge inlet and the second sludge inlet are respectively provided with a first sludge falling pipe and a second sludge falling pipe,
the first double-shaft screw conveyor and the second double-shaft screw conveyor are horizontally arranged on the left side and the right side of the bottom of the sludge storage bin, an upper inlet flange of the first double-shaft screw conveyor is connected with a first sludge outlet at the bottom of the sludge storage bin, a lower outlet flange of the first double-shaft screw conveyor is connected with a first sludge dropping pipe, and the first sludge dropping pipe is connected to a first sludge inlet of the premixing double-shaft screw conveyor; an upper inlet flange of the second double-shaft screw conveyor is connected with a second sludge outlet at the bottom of the sludge storage bin, a lower outlet flange of the second double-shaft screw conveyor is connected with a second sludge dropping pipe, the second sludge dropping pipe is connected to a second sludge inlet of the premixing double-shaft screw conveyor,
the pipeline resistance reducing system consists of a medium storage bin, a medium high-pressure plunger pump, a low-resistance pipe and a medium pipeline, wherein the low-resistance pipe comprises an outer pipe and an inner pipe, the outer pipe is sleeved outside the inner pipe, the two ends of the outer pipe are sealed, a medium accommodating space is formed between the pipe wall of the outer pipe and the pipe wall of the inner pipe, a medium inlet is formed in the outer pipe, a medium nozzle is arranged on the pipe wall of the inner pipe, connecting flanges are arranged at the two ends of the inner pipe,
the lubricating medium is stored in the medium storage bin, under the action of the medium high-pressure plunger pump, the lubricating medium is conveyed from the medium storage bin to a medium inlet of the low-resistance pipe through a medium pipeline by discontinuously matching with the feeding of the sludge conveying pump, then enters the medium accommodating space and finally enters the inner pipe through the medium nozzle,
a premixing sludge outlet of the premixing double-shaft screw conveyor is connected with an inlet of the sludge delivery pump, an outlet pipeline of the sludge delivery pump is connected with an inner pipe of a low resistance pipe of the pipeline resistance reducing system through a flange,
deeply dewatered sludge is stored in a sludge storage bin, under the drive of a feeding sliding frame, the sludge enters a first double-shaft screw conveyor and a second double-shaft screw conveyor from a first sludge outlet and a second sludge outlet at the bottom of the sludge storage bin respectively, then enters a first sludge inlet and a second sludge inlet of a pre-mixing double-shaft screw conveyor through a first sludge dropping pipe and a second sludge dropping pipe respectively, enters a sludge conveying pump after being pre-mixed by the pre-mixing double-shaft screw conveyor, the sludge is intermittently pumped out by the sludge conveying pump and is lubricated after passing through an inner pipe of a low-resistance pipe, so that the long-distance conveying of the deeply dewatered sludge is realized,
the premixing double-shaft screw conveyor is also provided with a material mixing port which is used as a material access port for mixing heat value.
The preferable scheme of the utility model is that, the inner tube volume of low resistance pipe with the discharge capacity of sludge pump equals.
The utility model discloses an optimal scheme is, helical blade of screw conveyer increases the stirring tool bit in advance to the blade passivation, can realize the damage and the mixture to degree of depth dehydration mud through the operation of double-shaft screw conveyer in advance, and the mud mouth that thoughtlessly mixes of double-shaft screw conveyer forms certain pre-pressure.
The utility model discloses a preferred scheme is, the mud delivery pump uses single cylinder hydraulic pressure plunger pump.
The utility model discloses a preferred scheme is, the medium nozzle is oiling glib talker, and medium among the medium accommodation space can pass through the one-way entering of medium nozzle the inner tube is lubricated mud, and mud in the inner tube then can not reverse inflow medium accommodation space.
The utility model discloses a preferred scheme is, feed balladeur train, first double-shaft screw conveyer, second double-shaft screw conveyer, sludge transfer pump and medium high pressure plunger pump in advance by the hydraulic pressure station drive.
The utility model discloses an optimal scheme is first two-shaft screw conveyer, second two-shaft screw conveyer's entry top respectively is provided with the fender, the fender installation is fixed on the lateral wall in mud storage storehouse.
The utility model discloses an optimal scheme is, sludge storage storehouse bottom still is provided with the multiple spot weighing sensor, the multiple spot weighing sensor transmits the signal respectively for first pair screw conveyer, the two screw conveyer of second, screw conveyer and sludge pump in advance.
The utility model has the advantages that: the utility model provides a conveying system of degree of depth dehydration mud, through respectively installing a biax screw conveyer in the warehouse bottom left and right sides, the problem of mud warehouse putty bridge has been solved, can also prevent effectively simultaneously the formation at balladeur train removal in-process dead angle, and still increase one set of pipeline that plays the lubrication action and fall the system of hindering to sludge conveying pump exit, utilize high-pressure plunger pump to pour into lubricating medium into the pipeline and fall and hinder the system, fall to the pipeline and hinder degree of depth dehydration mud in the system pipeline and infiltrate, it hinders lubricated liquid film to form to fall, effectively reduce the resistance that degree of depth dehydration mud produced at the in-process of pipeline transportation, thereby realize the long distance transport of degree of depth dehydration mud.
Description of the drawings:
fig. 1-4 are schematic structural views of a first embodiment of the present invention. Fig. 1 is a schematic overall structure diagram, fig. 2 and 3 are schematic partial structure diagrams, and fig. 4 is an enlarged schematic partial structure diagram.
In the figure:
1. a sludge storage bin, a first sludge outlet of 1A1, a second sludge outlet of 1A2, a first mud guard of 1B1, a second mud guard of 1B2,
2. a feeding carriage is arranged on the feeding device,
3. a first double-shaft screw conveyer, an upper inlet flange of 3A1, a lower outlet flange of 3A2, a first mud falling pipe of 3B,
4. a second double-shaft screw conveyor, an upper inlet flange of 4A1, a lower outlet flange of 4A2, a second mud-falling pipe of 4B,
5. a premixing double-shaft screw conveyor, a first sludge inlet of 5.11, a second sludge inlet of 5.12, a premixing sludge outlet of 5.2, a proportioning port of 5.3,
6. a sludge conveying pump, a 6.1 sludge conveying pump outlet pipeline, a 6.2 sludge long-distance conveying pipeline,
7. a hydraulic pressure station is arranged at the bottom of the hydraulic cylinder,
8. the resistance-reducing system of the pipeline is provided with a resistance-reducing system,
8.1 of the medium storage bin, wherein,
8.2 a medium high-pressure plunger pump,
8.3 low-resistance pipe, 8.3A outer pipe, 8.3A1 medium inlet, 8.3B inner pipe, 8.3B1, 8.3B2 flange, 8.3C medium nozzle; 8.3D medium containing space, wherein the medium containing space is a hollow space,
8.4 medium pipeline.
Detailed Description
Fig. 1-4 are schematic structural views of a first embodiment of the present invention. Fig. 1 is a schematic overall structure diagram, fig. 2 and 3 are schematic partial structure diagrams, and fig. 4 is an enlarged schematic partial structure diagram.
In the figure, the conveying system of the deep dehydration sludge in the present embodiment comprises a sludge storage bin 1, a feeding carriage 2, a pre-mixing double-shaft screw conveyor 5, a sludge conveying pump 6 and a hydraulic station 7, wherein the left side and the right side of the bottom of the sludge storage bin 1 are respectively provided with a first sludge outlet 1A1 and a second sludge outlet 1A2, different from the prior art, the present embodiment is further provided with a first double-shaft screw conveyor 3, a second double-shaft screw conveyor 4 and a pipeline drag reduction system 8 for lubrication, the pre-mixing double-shaft screw conveyor 5 is provided with a first sludge inlet 5.11 and a second sludge inlet 5.12, the first sludge inlet 5.11 and the second sludge inlet 5.12 are respectively provided with a first sludge falling pipe 3B and a second sludge falling pipe 4B,
the first double-shaft screw conveyor 3 and the second double-shaft screw conveyor 4 are horizontally arranged at the left side and the right side of the bottom of the sludge storage bin 1. An upper inlet flange 3A1 of the first double-shaft screw conveyor 3 is connected with a first sludge outlet 1A1 at the bottom of the sludge storage bin 1, a lower outlet flange 3A2 of the first double-shaft screw conveyor 3 is connected with a first sludge dropping pipe 3B, and the first sludge dropping pipe 3B is connected to a first sludge inlet 5.11 of the premixing double-shaft screw conveyor 5; an upper inlet flange 4A1 of the second double-shaft screw conveyor 4 is connected with a second sludge outlet 1A2 at the bottom of the sludge storage bin 1, a lower outlet flange 4A2 of the second double-shaft screw conveyor 4 is connected with a second sludge dropping pipe 4B, and the second sludge dropping pipe 4B is connected to a second sludge inlet 5.12 of the premixing double-shaft screw conveyor 5;
a premixing sludge outlet 5.2 of the premixing double-shaft screw conveyor 5 is connected to an inlet of the sludge delivery pump 6, an outlet pipeline 6.1 of the sludge delivery pump 6 is connected with an inner pipe 8.3B of a low-resistance pipe 8.3 through a flange,
sludge is stored in a storage bin 1 of deep-dehydrated sludge, when a feeding sliding frame 2 runs, the sludge enters a first double-shaft screw conveyor 3 and a second double-shaft screw conveyor 4 from a first sludge outlet 1A1 and a second sludge outlet 1A2 at the bottom of the storage bin 1 respectively, then enters a first sludge inlet 5.11 and a second sludge inlet 5.12 of a premixing double-shaft screw conveyor 5 through sludge falling pipes 3B and 4B respectively, enters a sludge delivery pump 6 after premixing of the premixing double-shaft screw conveyor 5, the sludge is intermittently pumped out by the sludge delivery pump 6, and is lubricated after passing through an inner pipe 8.3B of a low-resistance pipe 8.3, so that the long-distance delivery of the deep-dehydrated sludge is realized.
The figure shows that the pipeline resistance reducing system 8 consists of a medium storage bin 8.1, a medium high-pressure plunger pump 8.2, a low-resistance pipe 8.3 and a medium pipeline 8.4, wherein the low-resistance pipe 8.3 comprises an outer pipe 8.3A and an inner pipe 8.3B, the outer pipe 8.3A is sleeved outside the inner pipe 8.3B, two ends of the outer pipe are sealed, a medium accommodating space 8.3D for accommodating a medium is formed between the pipe wall of the outer pipe 8.3A and the pipe wall of the inner pipe 8.3B, a medium inlet 8.3A1 is formed in the outer pipe 8.3A, a one-way nozzle 8.3C is arranged on the pipe wall of the inner pipe 8.3B, and connecting flanges 8.3B1 and 8.3B2 are arranged at two ends of the inner pipe;
the lubricating medium is stored in a medium storage bin 8.1, under the action of a medium high-pressure plunger pump 8.2, the lubricating medium is conveyed from the medium storage bin 8.1 to a medium inlet 8.3A1 of a low-resistance pipe 8.3 through a medium pipeline 8.4 by discontinuously matching with feeding of a sludge conveying pump 6 (both the high-pressure plunger pump 8.2 and the sludge conveying pump 6 are plunger pumps), then enters a medium accommodating space 8.3D, and finally enters an inner pipe 8.3B through a medium nozzle 8.3C.
In this example, a dosing port 5.3 is also arranged on the premixing double-shaft screw conveyor 5, and the dosing port 5.3 is used as a material access port for adjusting the heat value.
In this example, the stirring tool bit is added to the screw blade of the premixing screw conveyor to passivate the blade edge, so that the deep dewatered sludge can be damaged and mixed by the operation of the premixing double-shaft screw conveyor, and a certain pre-pressure is formed at the outlet of the premixing double-shaft screw conveyor.
In this example, the sludge transfer pump uses a single-cylinder hydraulic plunger pump.
In this example, the media nozzle is an oil nozzle, the lubricating medium can enter the inner tube 8.3B from the media containing space 8.3D through the media nozzle 8.3C in one direction to lubricate the sludge, and the sludge in the inner tube 8.3B cannot flow into the media containing space 8.3D through the media nozzle 8.3C in the opposite direction.
In this example, the feed carriage 2, the first double screw conveyor 3, the second double screw conveyor 4, the premix screw conveyor 5 and the sludge transfer pump 6 are driven by a hydraulic station 7.
In this embodiment, a first splash guard 1B1 and a second splash guard 1B2 are respectively disposed above the inlets of the first twin-screw conveyor 3 and the second twin-screw conveyor 4, and the splash guards are fixed to the side walls of the sludge storage bin 1, so that the splash guards can reduce the pressure generated when the deeply dewatered sludge in the sludge storage bin 1 directly presses on the first twin-screw conveyor 3 and the second twin-screw conveyor 4.
The utility model discloses the suggestion, in this example, the lubricating medium can utilize waste oil to act as emollient, realizes the comprehensive utilization of resource.
The utility model discloses indicate, in other embodiments, 1 bottom in sludge storage storehouse still sets up the multiple spot weighing sensor, the multiple spot weighing sensor transmits the signal respectively for first double screw conveyer 3, second double screw conveyer 4, preliminary mixing biax screw conveyer 5 and sludge pump 6. Signals of the multi-point weighing sensor are fed back to the first double-screw conveyer 3, the second double-screw conveyer 4, the pre-mixing double-shaft screw conveyer 5 and the sludge conveying pump 6, so that the conveying amount of materials can be flexibly adjusted.
Claims (8)
1. The utility model provides a conveying system of degree of depth dehydration mud, includes sludge storage storehouse, feed balladeur train, preliminary mixing biax screw conveyer, sludge transfer pump and hydraulic pressure station, sludge storage storehouse bottom is provided with first mud outlet and second mud outlet, first mud outlet and second mud outlet set up respectively the left and right sides of sludge storage storehouse bottom, characterized by still increases first biax screw conveyer, second biax screw conveyer and plays the pipeline of lubrication action and fall and hinder the system, preliminary mixing biax screw conveyer has first mud inlet and second mud inlet, still set up first mud pipe and second mud pipe that falls on first mud inlet and the second mud inlet respectively
The first double-shaft screw conveyor and the second double-shaft screw conveyor are horizontally arranged on the left side and the right side of the bottom of the sludge storage bin, an upper inlet flange of the first double-shaft screw conveyor is connected with a first sludge outlet at the bottom of the sludge storage bin, a lower outlet flange of the first double-shaft screw conveyor is connected with a first sludge dropping pipe, and the first sludge dropping pipe is connected to a first sludge inlet of the premixing double-shaft screw conveyor; an upper inlet flange of the second double-shaft screw conveyor is connected with a second sludge outlet at the bottom of the sludge storage bin, a lower outlet flange of the second double-shaft screw conveyor is connected with a second sludge dropping pipe, the second sludge dropping pipe is connected to a second sludge inlet of the premixing double-shaft screw conveyor,
the pipeline resistance reducing system consists of a medium storage bin, a medium high-pressure plunger pump, a low-resistance pipe and a medium pipeline, wherein the low-resistance pipe comprises an outer pipe and an inner pipe, the outer pipe is sleeved outside the inner pipe, the two ends of the outer pipe are sealed, a medium accommodating space is formed between the pipe wall of the outer pipe and the pipe wall of the inner pipe, a medium inlet is formed in the outer pipe, a medium nozzle is arranged on the pipe wall of the inner pipe, connecting flanges are arranged at the two ends of the inner pipe,
the lubricating medium is stored in the medium storage bin, under the action of the medium high-pressure plunger pump, the lubricating medium is conveyed from the medium storage bin to a medium inlet of the low-resistance pipe through a medium pipeline by discontinuously matching with the feeding of the sludge conveying pump, then enters the medium accommodating space and finally enters the inner pipe through the medium nozzle,
a premixing sludge outlet of the premixing double-shaft screw conveyor is connected with an inlet of the sludge delivery pump, an outlet pipeline of the sludge delivery pump is connected with an inner pipe of a low resistance pipe of the pipeline resistance reducing system through a flange,
deeply dewatered sludge is stored in a sludge storage bin, under the drive of a feeding sliding frame, the sludge enters a first double-shaft screw conveyor and a second double-shaft screw conveyor from a first sludge outlet and a second sludge outlet at the bottom of the sludge storage bin respectively, then enters a first sludge inlet and a second sludge inlet of a pre-mixing double-shaft screw conveyor through a first sludge dropping pipe and a second sludge dropping pipe respectively, enters a sludge conveying pump after being pre-mixed by the pre-mixing double-shaft screw conveyor, the sludge is intermittently pumped out by the sludge conveying pump and is lubricated after passing through an inner pipe of a low-resistance pipe, so that the long-distance conveying of the deeply dewatered sludge is realized,
the premixing double-shaft screw conveyor is also provided with a material mixing port which is used as a material access port for mixing heat value.
2. The system for delivering deeply dehydrated sludge as claimed in claim 1, wherein the low resistance pipe has an inner pipe volume equal to the displacement of the sludge delivery pump.
3. The system for delivering deeply dehydrated sludge as claimed in claim 1, wherein the helical blades of the pre-mixing screw conveyor are provided with stirring blades and the cutting edges of the blades are passivated, so that the pre-mixing screw conveyor can be operated to break and mix the deeply dehydrated sludge and form a certain pre-pressure at the pre-mixing outlet of the pre-mixing screw conveyor.
4. The system for delivering deeply dehydrated sludge as claimed in claim 1, wherein the sludge delivery pump uses a single cylinder hydraulic plunger pump.
5. The system for delivering deeply dewatered sludge as claimed in claim 1, wherein said medium nozzle is an oil nozzle, the medium in the medium containing space can enter said inner tube in one direction through said medium nozzle to lubricate the sludge, and the sludge in said inner tube cannot flow backward into said medium containing space.
6. The system for transporting deeply dewatered sludge as claimed in claim 1, wherein said feeding carriage, first twin screw conveyor, second twin screw conveyor, pre-mixing screw conveyor, sludge transporting pump and medium high pressure plunger pump are all driven by said hydraulic station.
7. The system for transporting deeply dewatered sludge as claimed in claim 1, wherein a mudguard is respectively disposed above the inlets of the first and second twin-screw conveyors, and the mudguard is fixedly mounted on the sidewall of the sludge storage bin.
8. The system for delivering the deeply dehydrated sludge as claimed in claim 1, wherein the bottom of the sludge storage bin is further provided with a multi-point weighing sensor, and the multi-point weighing sensor transmits signals to the first double-screw conveyor, the second double-screw conveyor, the pre-mixing screw conveyor and the sludge delivery pump respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922204955.XU CN211546309U (en) | 2019-12-10 | 2019-12-10 | Conveying system for deeply dewatered sludge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922204955.XU CN211546309U (en) | 2019-12-10 | 2019-12-10 | Conveying system for deeply dewatered sludge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110903013A (en) * | 2019-12-10 | 2020-03-24 | 深圳市合众清洁能源研究院 | Conveying system for deeply dewatered sludge |
| CN114026985A (en) * | 2021-11-20 | 2022-02-11 | 华北水利水电大学 | Adjustable straw soil composite pipe ditching and earthing device |
| CN114041405A (en) * | 2021-11-20 | 2022-02-15 | 华北水利水电大学 | Soil, straw and liquid cyclone mixing and straw soil composite pipe conical extruding device |
-
2019
- 2019-12-10 CN CN201922204955.XU patent/CN211546309U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110903013A (en) * | 2019-12-10 | 2020-03-24 | 深圳市合众清洁能源研究院 | Conveying system for deeply dewatered sludge |
| CN114026985A (en) * | 2021-11-20 | 2022-02-11 | 华北水利水电大学 | Adjustable straw soil composite pipe ditching and earthing device |
| CN114041405A (en) * | 2021-11-20 | 2022-02-15 | 华北水利水电大学 | Soil, straw and liquid cyclone mixing and straw soil composite pipe conical extruding device |
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Address after: 518045 No. 2112, No. 1, Changfu Jinmao building, Futian Free Trade Zone, Shenzhen, Guangdong Patentee after: Shenzhen Union Clean Energy Research Institute Patentee after: Shenzhen Energy & Environmental Protection Co., Ltd Address before: 518045 No. 2112, No. 1, Changfu Jinmao building, Futian Free Trade Zone, Shenzhen, Guangdong Patentee before: Shenzhen Union Clean Energy Research Institute Patentee before: Shenzhen energy environmental protection Co., Ltd. |
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Effective date of registration: 20220606 Address after: 13 / F, Times financial center, 4001 Shennan Avenue, Futian District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Energy and environmental protection Co.,Ltd. Address before: 518045 No. 2112, No. 1, Changfu Jinmao building, Futian Free Trade Zone, Shenzhen, Guangdong Patentee before: Shenzhen Union Clean Energy Research Institute Patentee before: Shenzhen Energy & Environmental Protection Co., Ltd |