CN216023255U - Salt crystallization separation system - Google Patents
Salt crystallization separation system Download PDFInfo
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- CN216023255U CN216023255U CN202121312293.9U CN202121312293U CN216023255U CN 216023255 U CN216023255 U CN 216023255U CN 202121312293 U CN202121312293 U CN 202121312293U CN 216023255 U CN216023255 U CN 216023255U
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Abstract
The utility model provides a salt crystal separation system, which comprises a treatment device, a separation device and a temperature regulation device, wherein the treatment device is connected with the separation device, the temperature regulation device is connected with the treatment device, the temperature regulation device is used for carrying out temperature regulation on electroplating liquid placed in the treatment device so as to regulate the solubility of the electroplating liquid, the treatment device is used for crystallizing salt in the electroplating liquid, and the separation device is used for separating the crystallized salt from the electroplating liquid treated by the treatment device; the salt crystallization separation system has the advantages of reasonable structure and simple and convenient use.
Description
Technical Field
The utility model belongs to the technical field of electroplating equipment, and particularly relates to a salt crystallization separation system.
Background
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of a workpiece by using the principle of electrolysis, and is a process of attaching a layer of metal film on the surface of a metal or other material workpiece by using the action of electrolysis so as to play roles of preventing metal oxidation (such as corrosion), improving wear resistance, conductivity, light reflection, corrosion resistance (such as copper sulfate and the like), enhancing the appearance and the like. The plating solution is an indispensable raw material in the electroplating process, and the concentration of the main salt in the plating solution (for example, the main salt component sodium carbonate in the zinc-nickel alloy plating solution) increases with the consumption of the plating solution during the electroplating process, and the increase of the concentration of the main salt in the plating solution affects the quality of the workpiece to be electroplated, for example, the electroplated metal is difficult to adhere to the surface of the plated workpiece, or the electroplated surface has defects such as pits. In the prior art, in order to ensure that the concentration of the main salt in the electroplating solution is maintained within a reasonable range value so as to ensure the quality of the plated part, corresponding consumed chemical agents need to be added into the electroplating solution, and the treatment process of the electroplating solution is troublesome, namely, the consumed metal compound agent or agents added into the electroplating solution need to calculate corresponding addition amount and concentration ratio; the ability to separate the corresponding primary salt directly from the plating solution, i.e., to treat only the concentration of the primary salt in the plating solution, would make the plating solution treatment process relatively more convenient or simpler.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention aims to provide a salt crystallization separation system which is reasonable in structure and simple and convenient to use.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a salt crystal separation system includes a treatment device, a separation device, and a temperature adjustment device, wherein the treatment device is connected with the separation device, the temperature adjustment device is connected with the treatment device, the temperature adjustment device is used for adjusting the temperature of electroplating liquid placed in the treatment device so as to adjust the solubility of the electroplating liquid, the treatment device is used for making crystallized salt in the electroplating liquid, and the separation device is used for separating out the crystallized salt in the electroplating liquid treated by the treatment device.
As a further improvement of the salt crystallization separation system, the treatment device comprises a first container, a stirring device, a first liquid inlet and a first liquid outlet, the first liquid inlet and the first liquid outlet are both communicated with the first container, the stirring device is connected with the first container, the first container is used for containing electroplating solution to be treated, the stirring device is used for stirring the electroplating solution, and the first liquid outlet is connected with the separation device;
and/or comprises a first pump which is connected with the first liquid inlet.
As a further improvement of the salt crystallization separation system, the salt crystallization separation system further comprises a second container, the first container is arranged in the second container, the second container is used for accommodating a heat exchange medium, and the temperature regulation device is connected with the second container.
As a further improvement to the salt crystallization separation system, the second container is externally wrapped with insulation material; or the heat insulation device further comprises a third container, wherein the second container is arranged in the third container, and the third container is filled with heat insulation materials.
As a further improvement of the salt crystallization separation system, the separation device includes a fourth container, a filter screen, a fourth inlet and a fourth outlet, the fourth inlet with the fourth outlet all communicate with the fourth container, the filter screen is located in the fourth container, the filter screen is located between the fourth inlet and the fourth outlet, the fourth inlet with the first outlet is connected, the fourth outlet with the recovery device is connected.
As a further improvement of the salt crystallization separation system, the salt crystallization separation system further comprises a recovery device, wherein the recovery device is used for recovering or temporarily storing electroplating solution after separation, the recovery device comprises a fifth container, a fifth liquid inlet, a fifth liquid outlet and a second pump, the fifth liquid inlet and the fifth liquid outlet are communicated with the fifth container, the fifth liquid inlet is communicated with the fourth liquid outlet, and the fifth liquid outlet is connected with the second pump.
As a further improvement of the salt crystallization separation system, the temperature regulation device comprises a refrigeration device, a sixth container, a sixth liquid inlet, a sixth liquid outlet and a third pump, wherein the sixth liquid inlet and the sixth liquid outlet are both communicated with the sixth container;
the second container is also provided with a second liquid inlet and a second liquid outlet, and the second liquid inlet and the second liquid outlet are both communicated with the second container;
an evaporator of the refrigeration equipment is arranged in the sixth container, the sixth liquid inlet is communicated with the second liquid outlet, the sixth liquid outlet is communicated with the second liquid inlet, and the third pump is connected between the sixth liquid outlet and the second liquid inlet;
or the temperature regulating device comprises refrigeration equipment, and an evaporator of the refrigeration equipment is arranged in the second container.
As a further improvement of the salt crystallization separation system, the salt crystallization separation system further comprises a seventh liquid inlet, a seventh liquid outlet and a fourth pump, wherein the seventh liquid inlet and the seventh liquid outlet are both connected with the fourth container, and the fourth pump is connected with the seventh liquid inlet.
As a further improvement to the salt crystallization separation system, the seventh liquid inlet is located above the screen.
As a further improvement to the salt crystallization separation system, liquid level sensors are respectively arranged in the first container, the fourth container, the fifth container and the sixth container;
the first liquid inlet or the first pumping, the first liquid outlet and the fourth liquid inlet, the fourth liquid outlet and the fifth liquid inlet, the fifth liquid outlet or the second pumping, the sixth liquid outlet, the seventh liquid inlet or the fourth pumping and the seventh liquid outlet are respectively connected with an electric control valve.
Compared with the prior art, the utility model has the following beneficial effects: through the mutual cooperation of the treatment device and the temperature regulation device, salt in the electroplating solution to be treated is separated out (the temperature regulation device reduces the solubility of the electroplating solution by cooling the electroplating solution, the treatment device stirs the electroplating solution, and further the salt in the electroplating solution is crystallized and separated out), then the salt crystal separated out from the electroplating solution is separated by the separation device (filtration), and the electroplating solution with the separated salt crystal is recovered by the recovery device, so that the adjustment of the concentration of main salt in the electroplating solution is realized, and the influence on the quality of a plated part caused by overhigh concentration of the main salt in the electroplating solution is avoided or reduced; further, by separating the main salt directly from the plating solution, it is easier to control the component ratio of the plating solution than in the method of adding the consumed chemical components to the plating solution, i.e., the salt crystal separation system is relatively simpler and more convenient to use.
Drawings
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the utility model.
FIG. 1 is a schematic diagram of the overall structure of a salt crystallization separation system according to the present invention;
FIG. 2 is a schematic diagram of a salt crystallization separation system according to the present invention with the frame removed;
FIG. 3 is a cross-sectional view of a treatment apparatus according to the present invention;
FIG. 4 is an exploded view of the processing apparatus of the present invention;
FIG. 5 is a sectional view of the recovery apparatus of the present invention;
fig. 6 is an exploded view of the recycling apparatus of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and specific examples so that those skilled in the art can better understand the present invention and can implement the present invention, but the examples are not intended to limit the present invention, and in the present examples, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.
As shown in fig. 1 to 6, the present embodiment provides a salt crystallization separation system, which includes a treatment apparatus 1, a separation apparatus 2, and a temperature adjustment apparatus 3, wherein the treatment apparatus 1 and the separation apparatus 2 are connected, the temperature adjustment apparatus 3 is connected to the treatment apparatus 1, the temperature adjustment apparatus 3 is used for adjusting the temperature of a plating solution placed in the treatment apparatus 1 to adjust the solubility of the plating solution, the treatment apparatus 1 is used for crystallizing salt in the plating solution, and the separation apparatus is used for separating crystallized salt from the plating solution treated by the treatment apparatus. Specifically, the treatment apparatus 1 and the temperature adjustment apparatus 3 are cooperated with each other to precipitate salt in the plating solution to be treated (the temperature adjustment apparatus 3 lowers the temperature of the plating solution to lower the solubility of the plating solution, while the treatment apparatus 1 stirs the plating solution to crystallize and precipitate the salt in the plating solution), and then the separated salt crystal, such as sodium carbonate, in the plating solution is separated by the separation apparatus 2 (filtration).
As shown in fig. 2 to 4, in a preferred embodiment, the processing apparatus 1 includes a first container 11, a stirring device 12, a first liquid inlet 13 and a first liquid outlet 14, both the first liquid inlet 13 and the first liquid outlet 14 are communicated with the first container 11, the stirring device 12 is mounted on the first container 11, a stirring blade of the stirring device 12 extends to the bottom of the first container 11, the first container 11 is used for placing the electroplating solution to be processed, the stirring device 12 is used for stirring the electroplating solution, the first liquid outlet 14 is connected with the separation device 2, and the first liquid outlet 14 is located at the bottom of the first container 11; further, the electroplating device comprises a first pump 15, wherein the first pump 15 is connected with the first liquid inlet 13, the first pump 15 is used for pumping the electroplating solution to be treated into the first container 11 of the treatment device 1, and then the electroplating solution is stirred by the stirring device 12 under the cooperation of the temperature adjusting device 2 to accelerate the cooling of the electroplating solution, so that the solubility of main salt in the electroplating solution to be treated is reduced, and the main salt such as sodium carbonate is precipitated; for example, if the temperature of the plating solution is decreased from 50 ℃ to 10 ℃ and the solubility of the main salt per unit in the plating solution is decreased from 1000 g to 500 g, the extra 500 g of the main salt will precipitate as crystals.
As shown in fig. 2 to 4, in a preferred embodiment, the treatment device 1 further comprises a second container 16, the first container 11 is arranged in the second container 16, the second container 16 is used for accommodating a heat exchange medium, such as water, and the temperature adjusting device 3 is connected with the second container 16, namely, the temperature adjusting device 3 adjusts the temperature of the heat exchange medium in the second container 16 so as to adjust the temperature of the electroplating solution in the first container 11; the second container 16 is sleeved outside the first container 11 to exchange heat with the plating solution in the first container 11 to the maximum extent. Further, the second container 16 is wrapped with a heat insulating material; or, the device also comprises a third container 17, the second container 16 is arranged in the third container 17, and the third container 17 is filled with a heat-insulating material; by providing the second container 16 with a heat insulating material, the heat loss of the heat exchange medium in the second container 16, or the consumption of electrical energy by the temperature control device 3, can be reduced.
As shown in fig. 2, 5 and 6, in a preferred embodiment, the separation device 2 comprises a fourth container 21, a filter screen 22, a fourth liquid inlet 23 and a fourth liquid outlet 24, wherein the fourth liquid outlet 24 is positioned at the bottom of the fourth container 21, and the fourth liquid inlet 23 is positioned at the top of the fourth container 21; the fourth liquid inlet 23 and the fourth liquid outlet 24 are both communicated with the fourth container 21, the filter screen 22 is located in the fourth container 21, the filter screen 22 is located between the fourth liquid inlet 23 and the fourth liquid outlet 24, the fourth liquid inlet 23 is connected with the first liquid outlet 14, and the fourth liquid outlet 24 is connected with the recovery device 4. Specifically, the plating liquid after the completion of the treatment for precipitating the main salt in the treatment apparatus 1 is discharged into the fourth container 21, the filter 22 retains the main salt crystals precipitated in the plating liquid, and the plating liquid after the completion of the salt crystal separation can be put into production again.
As shown in fig. 2, in a preferred embodiment, the apparatus further comprises a seventh inlet 25, a seventh outlet 26 and a fourth pump 27, the seventh inlet 25 is located at the top of the fourth container 21, the seventh outlet 26 is located at the bottom of the fourth container 21, the seventh inlet 25 and the seventh outlet 26 are both connected to the fourth container 21, and the fourth pump 27 is connected to the seventh inlet 25; further, after the separated plating liquid is discharged from the fourth container 21, the salt crystals separated from the plating liquid are retained in the strainer 22, and at this time, water is supplied to the fourth container 21 by the fourth pump 27 to dissolve the salt crystals again and the salt crystals are discharged from the fourth container 21; meanwhile, the seventh liquid inlet 25 is positioned at the top of the fourth container 21, namely the seventh liquid inlet 25 is positioned above the filter screen 22, so that salt crystals in the filter screen 22 can be washed away during water injection, and the dissolution speed of the salt crystals can be increased; or by re-dissolving the salt crystals in the fourth container 21 and discharging the salt crystals, it is more convenient than manually cleaning the salt crystal solids out of the fourth container 21.
As shown in fig. 1-2, in a preferred embodiment, the electroplating apparatus further includes a recycling device 4, the recycling device 4 is used for recycling or temporarily storing the separated electroplating solution, the recycling device 4 includes a fifth container 51, a fifth liquid inlet 52, a fifth liquid outlet 53, and a second pump 54, the fifth liquid inlet 52 and the fifth liquid outlet 53 are both communicated with the fifth container 51, the fifth liquid inlet 52 is communicated with the fourth liquid outlet 24, and the fifth liquid outlet 53 is connected with the second pump 54.
As shown in fig. 1-2, in the preferred embodiment, the temperature regulation device 3 comprises a refrigeration equipment 31, a sixth container 32, a sixth inlet 33, a sixth outlet 34 and a third pump 35, the sixth inlet 33 and the sixth outlet 34 are both communicated with the sixth container 32; further, a second liquid inlet 18 and a second liquid outlet 19 are also arranged on the second container 16, the second liquid inlet 18 and the second liquid outlet 19 are both communicated with the second container 16, the second liquid outlet 19 is positioned at the top of the second container 16, and the second liquid inlet 18 is positioned at the bottom of the second container 16; the evaporator of the refrigeration device 31 is disposed in the sixth container 32, the sixth liquid inlet 33 is communicated with the second liquid outlet 19, the sixth liquid outlet 34 is communicated with the second liquid inlet 18, and the third pump 35 is connected between the sixth liquid outlet 34 and the second liquid inlet 18. Specifically, the refrigeration device 31 cools the medium in the sixth container 32, and then injects the medium into the second container 16 through the third pump 35 to cool the plating solution in the first container 11 to reduce the solubility of the plating solution, and when the liquid level of the medium in the second container 16 is lower than the second liquid outlet 19, the medium flows back to the sixth container 32 to form a circulation. In another embodiment, the temperature adjusting device 3 comprises a refrigeration device 31, wherein an evaporator of the refrigeration device 31 is directly installed in the second container 16, of course, the third pump 35 can be directly connected in the second container 16, and the heat exchange medium in the second container 16 is pumped out and injected into the second container 16 through the third pump to form a cycle.
As shown in fig. 2, in the preferred embodiment, the first container 11, the fourth container 21, the fifth container 51 and the sixth container 32 are provided therein with liquid level sensors 6, respectively; further, the first liquid inlet 13 or the first pump 15, the first liquid outlet 14 and the fourth liquid inlet 23, the fourth liquid outlet 24 and the fifth liquid inlet 52, the fifth liquid outlet 53 or the second pump 54, the sixth liquid outlet 34, the seventh liquid inlet 25, or the fourth pump 27 and the seventh liquid outlet 26 are respectively connected with an electric control valve 7, and the system can be automatically operated by the mutual cooperation of the liquid level sensor 6 and the electric control valve 7, for example, the electric control valve 7 can monitor the liquid level in the container according to the liquid level sensor 6, that is, the electric control valve and/or the pump is turned on or off according to the liquid level sensor 6.
The system works as follows: firstly, the electroplating solution to be treated is injected into the first container 11, the temperature adjusting device 3 and the stirring device 12 are simultaneously started, the temperature adjusting device 3 is used for cooling the electroplating solution so as to reduce the solubility of the electroplating solution on main salt, and the stirring device 12 is used for stirring the electroplating solution to accelerate the precipitation of the salt in the electroplating solution. Next, the plating solution after the treatment is discharged into the fourth container 21 in the separation device 2, salt crystals are trapped while the plating solution passes through the mesh of the strainer 22, and the plating solution after the filtration is continuously discharged into a recovery device for temporary storage or directly fed into a plating tank; then, water is again supplied to the fourth container 21 to dissolve the main salt crystals, and finally the fourth container 21 is emptied so as to receive the treated plating solution supplied from the treatment apparatus 1 again and circulate it.
Compared with the prior art, the utility model has the following beneficial effects: through the mutual cooperation of the treatment device and the temperature regulation device, salt in the electroplating solution to be treated is separated out (the temperature regulation device reduces the solubility of the electroplating solution by cooling the electroplating solution, the treatment device stirs the electroplating solution, and further the salt in the electroplating solution is crystallized and separated out), then the salt crystal separated out from the electroplating solution is separated by the separation device (filtration), and the electroplating solution with the separated salt crystal is recovered by the recovery device, so that the adjustment of the concentration of main salt in the electroplating solution is realized, and the influence on the quality of a plated part caused by overhigh concentration of the main salt in the electroplating solution is avoided or reduced; further, by separating the main salt directly from the plating solution, it is easier to control the component ratio of the plating solution than in the method of adding the consumed chemical components to the plating solution, i.e., the salt crystal separation system is relatively simpler and more convenient to use.
In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A salt crystallization separation system, characterized by: the electroplating solution treatment device comprises a treatment device, a separation device and a temperature regulation device, wherein the treatment device is connected with the separation device, the temperature regulation device is connected with the treatment device and is used for regulating the temperature of electroplating solution placed in the treatment device so as to regulate the solubility of the electroplating solution, the treatment device is used for crystallizing salt in the electroplating solution, and the separation device is used for separating the crystallized salt from the electroplating solution treated by the treatment device.
2. A salt crystallization separation system as claimed in claim 1, wherein: the treatment device comprises a first container, a stirring device, a first liquid inlet and a first liquid outlet, wherein the first liquid inlet and the first liquid outlet are communicated with the first container;
and/or comprises a first pump which is connected with the first liquid inlet.
3. A salt crystallization separation system as claimed in claim 2, wherein: the heat exchanger further comprises a second container, the first container is arranged in the second container, the second container is used for containing a heat exchange medium, and the temperature adjusting device is connected with the second container.
4. A salt crystallization separation system as claimed in claim 3, wherein: the second container is wrapped with a heat-insulating material; or the heat insulation device further comprises a third container, wherein the second container is arranged in the third container, and the third container is filled with heat insulation materials.
5. A salt crystallization separation system as claimed in any one of claims 2 to 4, wherein: the separation device comprises a fourth container, a filter screen, a fourth inlet and a fourth liquid outlet, wherein the fourth inlet is communicated with the fourth liquid outlet, the filter screen is positioned in the fourth container, the filter screen is positioned between the fourth inlet and the fourth liquid outlet, the fourth inlet is connected with the first liquid outlet, and the fourth liquid outlet is connected with the recovery device.
6. A salt crystallization separation system as claimed in claim 5, wherein: still include recovery unit, recovery unit is used for retrieving or keeping in the plating solution of accomplishing the separation, recovery unit includes fifth container, fifth inlet, fifth liquid outlet, second pumping, the fifth inlet with the fifth liquid outlet all with the fifth container is linked together, the fifth inlet with the fourth liquid outlet is linked together, the fifth liquid outlet with the second pumping is connected.
7. A salt crystallization separation system as claimed in claim 5, wherein: the temperature adjusting device comprises refrigeration equipment, a sixth container, a sixth liquid inlet, a sixth liquid outlet and a third pump, wherein the sixth liquid inlet and the sixth liquid outlet are communicated with the sixth container;
the second container is also provided with a second liquid inlet and a second liquid outlet, and the second liquid inlet and the second liquid outlet are both communicated with the second container;
an evaporator of the refrigeration equipment is arranged in the sixth container, the sixth liquid inlet is communicated with the second liquid outlet, the sixth liquid outlet is communicated with the second liquid inlet, and the third pump is connected between the sixth liquid outlet and the second liquid inlet;
or the temperature regulating device comprises refrigeration equipment, and an evaporator of the refrigeration equipment is arranged in the second container.
8. A salt crystallization separation system as claimed in claim 5, wherein: the device also comprises a seventh liquid inlet, a seventh liquid outlet and a fourth pump, wherein the seventh liquid inlet and the seventh liquid outlet are connected with the fourth container, and the fourth pump is connected with the seventh liquid inlet.
9. A salt crystallization separation system as claimed in claim 8, wherein: the seventh liquid inlet is positioned above the filter screen.
10. A salt crystallization separation system as claimed in any one of claims 6 to 9, wherein: liquid level sensors are respectively arranged in the first container, the fourth container, the fifth container and the sixth container;
the first liquid inlet or the first pumping, the first liquid outlet and the fourth liquid inlet, the fourth liquid outlet and the fifth liquid inlet, the fifth liquid outlet or the second pumping, the sixth liquid outlet, the seventh liquid inlet or the fourth pumping and the seventh liquid outlet are respectively connected with an electric control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121312293.9U CN216023255U (en) | 2021-06-11 | 2021-06-11 | Salt crystallization separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121312293.9U CN216023255U (en) | 2021-06-11 | 2021-06-11 | Salt crystallization separation system |
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| CN216023255U true CN216023255U (en) | 2022-03-15 |
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| CN202121312293.9U Active CN216023255U (en) | 2021-06-11 | 2021-06-11 | Salt crystallization separation system |
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| CN (1) | CN216023255U (en) |
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Address after: 511475 1st and 2nd Floor, Block B, No. 1, Taishi Center Village Road, Taishi Center Village, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province (temporary business premises) Patentee after: Guangdong Dajin Intelligent Technology Co.,Ltd. Address before: 511475 No. 61 Jiantai Road, Taishi Industrial Zone, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU DAJIN INDUSTRIAL EQUIPMENT Co.,Ltd. |
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Effective date of registration: 20230310 Address after: 529000 Jiangmen Industrial Transfer Industrial Park, Enping City, Jiangmen City, Guangdong Province Patentee after: Guangdong Nascar Environmental Technology Co.,Ltd. Address before: 511475 1st and 2nd Floor, Block B, No. 1, Taishi Center Village Road, Taishi Center Village, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province (temporary business premises) Patentee before: Guangdong Dajin Intelligent Technology Co.,Ltd. |