CN209853890U - Electroplating effluent nickel removal system - Google Patents
Electroplating effluent nickel removal system Download PDFInfo
- Publication number
- CN209853890U CN209853890U CN201920473174.8U CN201920473174U CN209853890U CN 209853890 U CN209853890 U CN 209853890U CN 201920473174 U CN201920473174 U CN 201920473174U CN 209853890 U CN209853890 U CN 209853890U
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- CN
- China
- Prior art keywords
- reaction barrel
- primary reaction
- filtering
- nickel
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 29
- 238000009713 electroplating Methods 0.000 title claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 76
- 238000001914 filtration Methods 0.000 claims abstract description 40
- 239000002351 wastewater Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 229910001453 nickel ion Inorganic materials 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 abstract description 13
- 238000004090 dissolution Methods 0.000 abstract description 5
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 13
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000002244 precipitate Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 238000007747 plating Methods 0.000 description 6
- 239000008187 granular material Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009920 chelation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model relates to an electroplating wastewater nickel removal system, which belongs to the technical field of wastewater treatment and aims to provide an electroplating wastewater nickel removal system which can break the equilibrium state of precipitation and dissolution and accelerate the generation of precipitation, comprising a wastewater tank, an adjusting tank, a primary reaction barrel and a deep reaction barrel; the waste water tank is communicated with an adjusting tank, a first filtering device is arranged in the adjusting tank, the adjusting tank is communicated with a mixer, a first doser is arranged on the mixer, the mixer is communicated with a primary reaction barrel, a second filtering device is arranged in the primary reaction barrel, and the primary reaction barrel is communicated with a deep reaction barrel; the top of the primary reaction barrel is provided with a motor, and a screw rod coaxially connected with the motor is arranged in the primary reaction barrel; the second filtering device comprises a filtering frame and a filtering screen, the filtering frame is composed of a limiting portion and a frame body, the limiting portion is screwed with the screw threads, the frame body is spliced with the limiting portion in an inserting mode, and the filtering screen is arranged on the frame body.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to an electroplating wastewater nickel removal system.
Background
The nickel electroplating is to perform nickel plating through electrolysis, nickel metal is used as an anode, metal to be plated is used as a cathode, and nickel ions are reduced to the nickel metal on a workpiece to be plated to form a plating layer. The waste plating liquid produced after nickel plating and the waste water produced during the rinsing of the workpiece by plating are called plating waste water, in which nickel exists in the form of nickel ions.
In 2008, national discharge Standard of pollutants for electroplating industry (GB 21900-2008), the latest discharge standard of nickel-containing wastewater is 0.5mg/l of total nickel content, and the discharge standard of partial environment-sensitive areas is 0.1 mg/l. For the nickel electroplating wastewater, if the concentration is not high, caustic soda flakes can be directly added, the pH is adjusted to about 11, hydroxide radicals can be combined with nickel ions to generate nickel hydroxide precipitates, and nickel is removed, but most of the nickel electroplating wastewater is difficult to be treated to be below 0.1mg/L under the alkali-adding condition, mainly because the concentration of the nickel ions is too high, hydroxide radicals and nickel ions firstly form precipitates, but excessive precipitates can prevent the residual nickel ions in the wastewater from being combined with the hydroxide radicals, in this case, secondary alkali-adding is generally adopted for precipitation treatment, and sometimes, a heavy catching agent M1 is added into effluent of secondary precipitation for precipitation treatment.
Because the sedimentation treatment needs to be carried out by adding one more sedimentation tank during the secondary alkali addition, the method not only occupies the site, but also consumes more time in the waste liquid conveying and standing sedimentation processes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electroplating wastewater nickel removal system which can break the equilibrium state of precipitation and dissolution and accelerate the generation of precipitation.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
an electroplating wastewater nickel removal system comprises a wastewater tank, a regulating tank, a primary reaction barrel and a deep reaction barrel; the waste water tank is communicated with an adjusting tank, a first filtering device is arranged in the adjusting tank, the adjusting tank is communicated with a mixer through a liquid extracting pump, a first doser is arranged on the mixer, the mixer is communicated with a primary reaction barrel, a second filtering device is arranged in the primary reaction barrel, and the primary reaction barrel is communicated with a deep reaction barrel;
the top of the primary reaction barrel is provided with a motor, and a screw rod coaxially connected with the motor is arranged in the primary reaction barrel; the second filtering device comprises a filtering frame and a filtering screen, the filtering frame is composed of a limiting portion and a frame body, the limiting portion is screwed with the screw threads, the frame body is spliced with the limiting portion in an inserting mode, and the filtering screen is arranged on the frame body.
Through adopting above-mentioned technical scheme, through adding alkali and a small amount of flocculating agent on first doser, make it mix and flow into elementary reaction bucket with the waste liquid, deposit and flocculate into great granule and remove nickel with generating nickel hydroxide, can reach the sediment when nickel hydroxide deposits to a certain amount and dissolve balanced, the nickel hydroxide that generates this moment deposits the further precipitation that can prevent nickel ion in the waste liquid, rise through motor drive second filter equipment, the filter screen accelerates to collect nickel hydroxide and deposit and the flocculation particle at the in-process that rises, when the filter screen lifting to leaving the liquid level, can promote the further generation of nickel ion and deposit.
The utility model discloses further set up to: the limit part and the butt joint surface of the frame body are respectively provided with a plug-in fixing bulge and a plug-in groove which are mutually in butt joint fit.
By adopting the technical scheme, when the second filtering device is lifted to a position away from the liquid surface, the frame body can be detached, and the filter screen positioned on the frame body can be cleaned for reuse.
The utility model discloses further set up to: be equipped with cleaning device on the filter screen, cleaning device is including locating framework one side and being used for clearing up the plate-shaped brush of filter screen, set up the guide slot of perpendicular plate-shaped brush length direction in the framework, the both ends of plate-shaped brush are connected with the kink, the plate-shaped brush passes through kink and guide slot sliding connection.
Through adopting above-mentioned technical scheme, treat the framework split back, remove the plate-shaped brush along the guide slot direction, can conveniently clear up the filter screen fast.
The utility model discloses further set up to: the periphery of the filter frame is fixedly provided with a roller device attached to the inner wall of the primary reaction barrel; the gyro wheel device includes the linking arm, the one end that the filter frame was kept away from to the linking arm is provided with the gyro wheel, the one end that the linking arm is close to the filter frame is fixed with the spacing ring, be provided with the spring between spacing ring and the filter frame, the sleeve has been cup jointed to the surface of spring, telescopic one end fixed connection in filter frame, and the sleeve is kept away from the one end of filter frame and is provided with the ring baffle who prescribes a limit to with the spacing ring block.
By adopting the technical scheme, when the limiting part ascends under the action of the screw rod, friction borne by the second filtering device in the ascending process is greatly reduced between the filtering frame and the inner wall of the primary reaction barrel through the rollers; meanwhile, the limiting part is prevented from driving the frame body to integrally and movably rotate in the primary reaction barrel.
The utility model discloses further set up to: one end of the regulating tank is provided with a water inlet for connecting a waste water tank, and the other end of the regulating tank is provided with a water outlet for connecting a mixer; the first filtering device is a mesh grid arranged below the water inlet.
Through adopting above-mentioned technical scheme, the net bars can be to the great granule impurity that exists in the waste water of direct emission filtering separation, avoids great granule to damage the liquid pump simultaneously.
The utility model discloses further set up to: the primary reaction barrel is communicated with the deep reaction barrel through a connecting pipe, and a water outlet valve is arranged on the connecting pipe; an air outlet pipe and a water outlet pipe are sequentially inserted into the upper part and the lower part of the side end surface of the deep reaction barrel.
By adopting the technical scheme, under the condition that the nickel removed by the primary reaction barrel is not up to standard, a deep reaction barrel needs to be arranged for secondary treatment.
The utility model discloses further set up to: a PH dosing adjusting device and a PH detecting device are arranged on the primary reaction barrel; and the deep reaction barrel is provided with a nickel ion detection device and a second doser.
Through adopting above-mentioned technical scheme, elementary reaction bucket is carrying out nickel hydroxide and is deposiing the in-process, because of there are multiple heavy metal impurity in the waste liquid, so need detect and adjust the pH value of waste liquid. Under the condition that the effluent of the primary reaction barrel does not reach the standard, adding a recapture agent M1 into the deep reaction barrel to carry out chelation reaction so as to remove nickel ions.
The utility model discloses further set up to: the lead screw sets up in elementary reaction barrel's edge, and the both ends of lead screw rotate with the top and the bottom of elementary reaction barrel respectively and are connected.
By adopting the technical scheme, the integrity and the stability of the frame body can be avoided as much as possible.
To sum up, the utility model discloses a beneficial technological effect does:
1. when alkali and a flocculating agent are added for carrying out precipitation and flocculation reaction, when the nickel hydroxide precipitate reaches a precipitate dissolution equilibrium state, the second filtering device is driven by the motor to ascend, the filter screen accelerates the collection of the nickel hydroxide precipitate and flocculation particles in the ascending process, and when the filter screen is lifted to a position away from the liquid surface, the nickel ions can be promoted to further generate precipitate;
2. the filter frame is formed by splicing the limiting part and the frame body, so that the frame body is convenient to disassemble and clean;
3. the frame body is provided with the plate-shaped hairbrush which can slide, so that nickel hydroxide sediment and flocculating particles accumulated on the filter screen can be cleaned conveniently.
Drawings
FIG. 1 is a flow diagram of the system of the present invention;
FIG. 2 is a schematic structural view of the primary reaction tank of the present invention;
FIG. 3 is a schematic structural view of a second filtering device and a cleaning device of the present invention;
fig. 4 is a schematic structural diagram of the roller device of the present invention.
In the figure, 10, a waste water tank; 20. a regulating tank; 21. a first filtering device; 30. liquid extracting pump; 40. a mixer; 41. a first doser; 50. a primary reaction barrel; 51. a motor; 52. a screw rod; 53. a PH dosing adjusting device; 54. a pH detection device; 55. a second filter device 551, a frame body; 5511. a fixed protrusion; 5512. a guide groove; 552. a limiting part; 5521. inserting grooves; 553. a filter screen; 56. a cleaning device; 561. a plate-shaped brush; 562. a bending section; 57. a roller device; 571. a sleeve; 5711. an annular baffle; 572. a roller; 573. a connecting arm; 5731. a limiting ring; 574. a spring; 60. a connecting pipe; 61. a water outlet valve; 70. a deep reaction barrel; 71. a nickel ion detection device; 72. a second doser; 73. an air outlet pipe; 74. and (5) discharging a water pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): as shown in FIG. 1, an electroplating wastewater nickel removal system comprises a wastewater tank 10, a regulating reservoir 20, a primary reaction barrel 50 and a deep reaction barrel 70; one end of the regulating reservoir 20 is communicated with the wastewater tank 10 by arranging a water inlet, the other end of the regulating reservoir 20 is provided with a water outlet, wherein a first filtering device 21 for performing a primary filtering function is arranged below the water inlet, the first filtering device 21 is selected as a mesh grid, the water outlet is communicated to the mixer 40 through a liquid lifting pump 30, a first doser 41 is arranged on the mixer 40, the mixer 40 is communicated to the primary reaction barrel 50, the primary reaction barrel 50 is connected with the deep reaction barrel 70 through a connecting pipe 60, a water outlet valve 61 is arranged on the connecting pipe 60, a nickel ion detection device 71 and a second doser 72 are arranged on the deep reaction barrel 70, and an air outlet pipe 73 and a water outlet pipe 74 are sequentially inserted from top to bottom on the side end face of the deep reaction barrel 70. The nickel ion detecting device 71 may be a HI96740 nickel ion concentration detector manufactured by shanghai xiqing electronics technologies ltd.
As shown in fig. 2, a motor 51 is installed in the middle of the top edge of the primary reaction barrel 50, a PH dosing adjusting device 53 and a PH detecting device 54 communicated with the primary reaction barrel 50 are disposed beside the motor 51, the PH dosing adjusting device 53 may be manufactured by shanghai meng industrial equipment ltd, and the PH detecting device 54 may be a PH detector. A screw rod 52 coaxially connected with a motor 51 is arranged in the primary reaction barrel 50, two ends of the screw rod 52 are respectively and rotatably connected with the top and the bottom of the primary reaction barrel 50 for limiting, a second filtering device 55 is connected onto the screw rod 52 in a threaded manner, and the motor 51 drives the screw rod 52 to rotate to realize the lifting movement of the second filtering device 55.
As shown in fig. 3, the second filtering device 55 includes a filtering frame and a filtering screen 553, the filtering frame is composed of a limiting portion 552 and a frame 551, wherein the limiting portion 552 is screwed on the screw rod 52, the abutting surface of the limiting portion 552 and the frame 551 is respectively provided with an inserting fixing protrusion 5511 and an inserting groove 5521, and the limiting portion 552 and the frame 551 can be inserted and fixed through the inserting fixing protrusion 5511 and the inserting groove 5521. The filter screen 553 is arranged on the frame 551, the cleaning device 56 is arranged on the filter screen 553, the cleaning device 56 comprises a plate-shaped brush 561 which is arranged on one side of the frame 551 and used for cleaning the filter screen 553, two ends of the plate-shaped brush 561 cross the filter screen 553 and are integrally connected with a bending part 562, two guide grooves 5512 which are vertical to the length direction of the plate-shaped brush 561 are arranged on the frame 551, and the plate-shaped brush 561 is in sliding connection with the guide grooves 5512 through the bending part 562.
As shown in fig. 3, roller devices 57 attached to the inner wall of the primary reaction tank 50 (see fig. 2) are fixedly installed around the filter frame, and eight sets of roller devices 57 are provided and evenly installed around the filter frame.
As shown in fig. 4, the roller device 57 includes a cylindrical connecting arm 573, a roller 572 is disposed at an end of the connecting arm 573 away from the filter frame, a limiting ring 5731 is fixed at an end of the connecting arm 573 close to the filter frame, a spring 574 is disposed between the limiting ring 5731 and the filter frame, a sleeve 571 is sleeved on an outer surface of the spring 574, an end of the sleeve 571 is fixedly connected with the filter frame, and an annular baffle 5711 that is defined by the limiting ring 5731 in a snap fit manner is disposed at an end of the sleeve 571 away from the filter frame.
The implementation principle of the embodiment is as follows: electroplating effluent flows into equalizing basin 20 from waste water tank 10, can filter the separation to the great granule impurity that exists in the waste water through the net bars, then promote to elementary reaction tank 50 by drawing liquid pump 30 in, the waste liquid adds caustic soda in the first doser 41 of accessible blender 40 when flowing into elementary reaction tank 50 to be aided with the flocculating agent according to the demand in proper amount, then adjusts the PH in elementary reaction tank 50 to 11 through PH medicine adjusting device 53 and PH detection device 54, makes waste water and caustic soda mixing and carry out precipitation reaction in elementary reaction tank 50.
In the process of nickel hydroxide sedimentation, the motor 51 drives the screw rod 52 to rotate slowly, the screw rod 52 drives the second filtering device 55 to ascend along the length direction of the screw rod 52, the collection of nickel hydroxide precipitates by the filter screen 553 is accelerated, when the filter screen 553 ascends to a position away from the liquid surface, the precipitation dissolution balance state of nickel hydroxide is broken, the precipitation generation rate is greater than the precipitation dissolution rate, and the waste water further generates nickel hydroxide precipitates.
When the filter screen 553 is lifted to the top wall of the primary reaction barrel 50, the frame 551 and the limiting part 552 are detached, and the plate-shaped brush 561 is moved along the guide groove 5512, so that the filter screen 553 is cleaned quickly and conveniently.
The water outlet valve 61 is opened, the water outlet of the primary reaction barrel 50 flows into the deep reaction barrel 70 through the connecting pipe 60, the heavy catcher M1 is added into the deep reaction barrel 70 for chelation reaction to remove nickel ions, and when the nickel ion concentration in the deep reaction barrel 70 is detected by the nickel ion detection device 71 to meet the discharge standard, the water outlet pipe 74 flows out.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides an electroplating effluent removes nickel system which characterized in that: comprises a waste water tank (10), a regulating reservoir (20), a primary reaction barrel (50) and a deep reaction barrel (70); the waste water tank (10) is communicated with a regulating tank (20), a first filtering device (21) is arranged in the regulating tank (20), the regulating tank (20) is communicated with a mixer (40) through a liquid extracting pump (30), a first medicine adding device (41) is arranged on the mixer (40), the mixer (40) is communicated with a primary reaction barrel (50), a second filtering device (55) is arranged in the primary reaction barrel (50), and the primary reaction barrel (50) is communicated with a deep reaction barrel (70);
a motor (51) is installed at the top of the primary reaction barrel (50), and a screw rod (52) which is coaxially connected with the motor (51) is arranged in the primary reaction barrel (50); the second filtering device (55) comprises a filtering frame and a filtering net (553), the filtering frame is composed of a limiting part (552) screwed with the screw rod (52) and a frame body (551) spliced with the limiting part (552), and the filtering net (553) is arranged on the frame body (551).
2. The nickel removing system for electroplating wastewater according to claim 1, characterized in that: the butt joint surfaces of the limiting part (552) and the frame body (551) are respectively provided with a plug-in fixing bulge (5511) and a plug-in groove (5521) which are in butt joint fit with each other.
3. The nickel removing system for electroplating wastewater according to claim 1, characterized in that: be equipped with cleaning device (56) on filter screen (553), cleaning device (56) is including locating framework (551) one side and being used for clearing up plate-shaped brush (561) of filter screen (553), set up guide slot (5512) perpendicular to plate-shaped brush (561) length direction on framework (551), the both ends of plate-shaped brush (561) are connected with kink (562), plate-shaped brush (561) are through kink (562) and guide slot (5512) sliding connection.
4. The nickel removing system for electroplating wastewater according to claim 1, characterized in that: the periphery of the filter frame is fixedly provided with a roller device (57) which is attached to the inner wall of the primary reaction barrel (50); the roller device (57) comprises a connecting arm (573), a roller (572) is arranged at one end, away from the filter frame, of the connecting arm (573), a limiting ring (5731) is fixed at one end, close to the filter frame, of the connecting arm (573), a spring (574) is arranged between the limiting ring (5731) and the filter frame, a sleeve (571) is sleeved on the outer surface of the spring (574), one end of the sleeve (571) is fixedly connected to the filter frame, and an annular baffle (5711) which is limited by the limiting ring (5731) in a clamping mode is arranged at one end, away from the filter frame, of the sleeve (571).
5. The nickel removing system for electroplating wastewater according to claim 1, characterized in that: one end of the regulating tank (20) is provided with a water inlet for connecting the waste water tank (10), and the other end of the regulating tank (20) is provided with a water outlet for connecting the mixer (40); the first filtering device (21) is a mesh grid arranged below the water inlet.
6. The nickel removing system for electroplating wastewater according to claim 1, characterized in that: the primary reaction barrel (50) is communicated with the deep reaction barrel (70) through a connecting pipe (60), and a water outlet valve (61) is arranged on the connecting pipe (60); the side end surface of the deep reaction barrel (70) is sequentially spliced with an air outlet pipe (73) and a water outlet pipe (74) from top to bottom.
7. The nickel removing system for electroplating wastewater according to claim 6, characterized in that: a PH dosing adjusting device (53) and a PH detecting device (54) are arranged on the primary reaction barrel (50); and a nickel ion detection device (71) and a second doser (72) are arranged on the deep reaction barrel (70).
8. The nickel removing system for electroplating wastewater according to claim 1, characterized in that: the screw rod (52) is arranged at the corner of the primary reaction barrel (50), and two ends of the screw rod (52) are respectively and rotatably connected with the top and the bottom of the primary reaction barrel (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920473174.8U CN209853890U (en) | 2019-04-09 | 2019-04-09 | Electroplating effluent nickel removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920473174.8U CN209853890U (en) | 2019-04-09 | 2019-04-09 | Electroplating effluent nickel removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209853890U true CN209853890U (en) | 2019-12-27 |
Family
ID=68936762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920473174.8U Expired - Fee Related CN209853890U (en) | 2019-04-09 | 2019-04-09 | Electroplating effluent nickel removal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209853890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392941A (en) * | 2020-04-19 | 2020-07-10 | 江西耐乐科技协同创新有限公司 | Copper water exhaust and slag discharge device combining carbon monoxide and pulse oscillation |
-
2019
- 2019-04-09 CN CN201920473174.8U patent/CN209853890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392941A (en) * | 2020-04-19 | 2020-07-10 | 江西耐乐科技协同创新有限公司 | Copper water exhaust and slag discharge device combining carbon monoxide and pulse oscillation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |