CN113458056A - Conformal high-efficiency anode mud composite cleaning method - Google Patents
Conformal high-efficiency anode mud composite cleaning method Download PDFInfo
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- CN113458056A CN113458056A CN202110736174.4A CN202110736174A CN113458056A CN 113458056 A CN113458056 A CN 113458056A CN 202110736174 A CN202110736174 A CN 202110736174A CN 113458056 A CN113458056 A CN 113458056A
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- anode
- cleaning
- pressure
- cutting edge
- cutting
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- 238000004140 cleaning Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 17
- 238000005406 washing Methods 0.000 claims abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims abstract description 5
- 230000001788 irregular Effects 0.000 claims abstract description 5
- 230000035515 penetration Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B08B1/32—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
A shape-following efficient anode mud composite cleaning method comprises the following steps that (1) an anode metal plate attached with anode mud after electrolysis is hoisted to a cleaning starting position, the anode metal plate is arranged in a mode that an odd group and an even group of anode metal plates are alternately placed in a positive and negative mode, namely, an irregular surface of the anode metal plate faces a cleaning arm profiling cutting edge, and a regular surface of the anode metal plate faces a cleaning arm regular cutting edge; (2) setting flushing water pressure and water flow, setting forward cutting pressure, cutting edge rotating speed and anode metal plate vertical moving speed; (3) starting a cleaning device, rotating a cleaning arm, mechanically rotating to destroy compact shells on the surface of anode mud, washing the anode mud obtained by crushing the surface of an anode by using high-pressure water during the rotating, and moving a metal anode plate to be cleaned in the vertical direction to realize the cleaning of odd groups of anode plates; (4) and (4) setting the reverse cutting pressure F =120-150N, matching the cleaning arms with the even groups of anode metal plates, and repeating the step (3) to clean the even groups of anode plates.
Description
Technical Field
The invention belongs to the technical field of non-ferrous metal electrolysis production, and particularly relates to a conformal high-efficiency anode mud composite cleaning technology.
Background
In the process of nickel electrolytic refining, purer electronickel is precipitated on a cathode, and an anode mud layer which is not easy to fall off is gradually formed on an anode, so that the anode is not uniformly dissolved, and a hard shell is formed on the surface of the anode mud layer when the anode mud is enriched to a certain degree, thereby causing anode passivation. Meanwhile, precious metals such as gold and platinum cannot be dissolved into the anode mud due to high standard potential, so that the anode mud has high comprehensive recovery value. Therefore, the cleaning and collection of the sludge is a necessary work.
Because the anode mud shell has certain strength, certain pressure needs to be applied during cleaning, and attention needs to be paid to the fact that the pressure cannot be too large so as to prevent anode metal from being damaged and polluting anode mud. In addition, the volume of the anode metal is continuously reduced along with the increase of the electrolysis times, and the integrity of the shape of the anode in the rest electrolysis also influences the efficiency of the next electrolysis.
The existing anode mud cleaning method is finished by scraping two sides and edges one by manually using a scraper, the labor intensity of workers is very high, and the health of the workers is greatly injured due to the fact that the hands of the workers are in long-term contact with the anode mud on the anode plate. And the speed is slow, the efficiency is low and the water consumption is large when the electrolytic anode plate is manually cleaned and cleaned. There are also few enterprises to adopt half mechanized clearance anode mud on the anode plate, send into the cleaning equipment who has the round brush by the workman piece by piece with the anode plate, carry out the anode plate from cleaning equipment by the manual work after the clearance, this cleaning equipment's round brush very easily damages, needs to change the round brush every day, leads to the round brush consume big, and the maintenance volume is big, and work efficiency is low, and is with high costs, therefore this equipment is difficult to popularize and apply. Therefore, many researchers are actively searching for solutions, such as the method proposed by patent application No. 201920357737.7, which uses a high-pressure washing water spraying method to realize anode mud dispersion collection, and the method proposed by patent application No. 201920357696.1, which uses a scraper to realize mechanical anode mud scraping operation. The method plays a certain role in anode mud collection, but has certain limitation.
Disclosure of Invention
The invention aims to provide a shape-following efficient anode mud composite cleaning method.
The invention relates to a shape-following high-efficiency anode mud composite cleaning method, which comprises the following steps:
hoisting an anode metal plate attached with anode mud after electrolysis to a cleaning starting position, wherein the anode metal plate is arranged in a mode of odd-even two groups of positive and negative alternate placement, namely, the irregular surface of the anode metal plate faces a cleaning arm profiling cutting edge, and the regular surface of the anode metal plate faces a cleaning arm conventional cutting edge;
setting flushing water pressure P =8-12MPa, water flow rate 18-23L/min, forward cutting pressure F = 120-;
starting the cleaning device, rotating the cleaning arm, mechanically rotating to destroy a compact shell on the surface of the anode mud, washing the anode mud obtained by crushing the surface of the anode by using high-pressure water during the rotating cutting, and moving the metal anode plate to be cleaned in the vertical direction to clean the odd groups of anode plates;
and (4) setting the reverse cutting pressure F =120-150N, matching the cleaning arm with the even number of groups of anode metal plates, and repeating the step (3) to realize the cleaning of the even number of groups of anode plates.
The invention has the beneficial effects that: according to the invention, a high-pressure water cleaning method is added on the basis of mechanical rotary cutting cleaning, a primary groove is formed on the surface of the anode slime, and a passivation shell with a compact and hard surface of the anode slime is crushed, so that the high-pressure water washing pressure required by cleaning is reduced, the water consumption is reduced, and the cleaning cost is reduced. A plurality of anode plates are cleaned at the same time in one working, so that the cleaning efficiency is improved; the high-pressure water can clean anode mud accumulated on the cutting edge while cleaning the anode mud on the anode plate, so that the self-cleaning effect of the equipment is achieved; the constant pressure control method ensures contact and clearance compensation, can change along with the size change of the anode plate after each electrolysis, and avoids damaging the anode metal in the cleaning process.
Drawings
Fig. 1 and 2 are device diagrams of the present invention, fig. 3 and 4 are working schematic diagrams of the present invention, fig. 5 is a working flow diagram of the present invention, and reference numerals and corresponding names are as follows: the device comprises a feeding motor 1, a transmission rod 2, a cleaning arm 3, a force sensor 4, a rotating motor 5, a high-pressure water pipe 3-1, a high-pressure water nozzle 3-2, a profiling cutting edge 3-3, an anode metal plate or anode plate A and anode mud B.
Detailed Description
As shown in fig. 1 to 5, the invention relates to a conformal high-efficiency anode mud composite cleaning method, which comprises the following steps:
hoisting an anode metal plate attached with anode mud after electrolysis to a cleaning starting position, wherein the anode metal plate is arranged in a mode of odd-even two groups of positive and negative alternate placement, namely, the irregular surface of the anode metal plate faces a cleaning arm profiling cutting edge, and the regular surface of the anode metal plate faces a cleaning arm conventional cutting edge;
setting flushing water pressure P =8-12MPa, water flow rate 18-23L/min, forward cutting pressure F = 120-;
starting the cleaning device, rotating the cleaning arm, mechanically rotating to destroy a compact shell on the surface of the anode mud, washing the anode mud obtained by crushing the surface of the anode by using high-pressure water during the rotating cutting, and moving the metal anode plate to be cleaned in the vertical direction to clean the odd groups of anode plates;
and (4) setting the reverse cutting pressure F =120-150N, matching the cleaning arm with the even number of groups of anode metal plates, and repeating the step (3) to realize the cleaning of the even number of groups of anode plates.
In the method, the cleaning arm in the step (1) is a hollow tube with a spiral profiling cutting edge and a high-pressure water nozzle, wherein the radius of the cutting edge is 120mm, the thread pitch is 100mm, the taper of the profiling part is 1, the distance between the high-pressure nozzles is 100mm, the diameter of the nozzle is 1.8mm, and the jet angle of the nozzle is 40 degrees.
In the method, the cutting and cleaning process in the step (2) is controlled by constant pressure; the spring mechanism is adopted to provide pressure, technological parameters are selected according to the device and the anode mud strength, and the cutting pressure meets the following requirements:
wherein F is the working pressure, R is the radius of the cutting edge, h is the penetration of the cutting edge, b is the width of the cutting edge, N is the number of the cutting edges, RCThe blade penetration h is related to the electrolysis times of the anode plate for passivating the compressive strength of the anode mud, and the result of the test shows that h =20 multiplied by 0.8t-1Wherein t is the number of electrolysis times; the width of the cutting edges is 2mm, and the number of the cutting edges is 12.
According to the method, the impact force of the high-pressure water cleaning water flow in the step (2) meets the following requirements:
wherein F is the theoretical water jet impact force, q is the water jet volume flow, and p is the water jet pressure; in order to achieve the cleaning effect, the water jet impact force is larger than 50N.
According to the method, the water jet impact force is larger than 50N, at the moment, the optimal cost performance parameter of the water jet volume flow and the water jet pressure is q = 18-23L/min, and p =8-12 MPa.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in FIG. 2, the anode metal plates cleaned by the method have the size of 1200X 100mm and are made of coarse nickel plates. After one-time electrolysis, the thickness of the anode mud is about 20mm, and the passivated shell strength of the anode mud is about 2.97 MPa. The radius of the cutting edge is 120mm, the width of the cutting edge is 2mm,
the working process can be summarized as the following steps:
the method comprises the following steps: as shown in fig. 1, the electrolyzed anode metal plate is hoisted to the cleaning starting position, the anode metal plate is arranged in a mode of odd-even two groups of positive and negative alternate placement, namely, the irregular surface of the anode metal plate faces the cleaning arm profiling cutting edge, and the regular surface of the anode metal plate faces the cleaning arm regular cutting edge.
Step two: selecting cutting parameters according to the electrolysis times and equipment parameters, wherein the cutting pressure meets the following requirements:
wherein F is the working pressure, R is the radius of the cutting edge, h is the penetration of the cutting edge, b is the width of the cutting edge, N is the number of the cutting edges, RCThe compressive strength of the anode mud passivated shell is characterized in that the blade penetration h is related to the electrolysis frequency of the anode plate, and h =20 × 0.8t-1Wherein t is the number of electrolysis times. The impact force of the high-pressure water cleaning water flow meets the following requirements:
wherein F is the theoretical water jet impact force, q is the water jet volume flow, and p is the water jet pressure. To achieve the cleaning effect, the water jet impact force should be greater than 50N. The cutting pressure is set to satisfy F =150N, the high-pressure flushing pressure is set to satisfy P =10MPa, the water flow is 23L/min, the vertical moving speed of the anode metal plate is 1500mm/min, and the rotating speed of the cutting edge is 60 r/min.
Step three: as shown in fig. 3, the cleaning device is started, and the mechanical rotary cutting destroys the compact shell on the surface of the anode mud, and the anode mud is washed by high-pressure water, so that the cleaning of the anode plates in odd groups is realized.
Step four: and as shown in fig. 4, setting the reverse cutting pressure F =150N, and repeating the third step to clean the anode plates of the even groups.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A conformal high-efficiency anode mud composite cleaning method is characterized by comprising the following steps:
hoisting an anode metal plate attached with anode mud after electrolysis to a cleaning starting position, wherein the anode metal plate is arranged in a mode of odd-even two groups of positive and negative alternate placement, namely, the irregular surface of the anode metal plate faces a cleaning arm profiling cutting edge, and the regular surface of the anode metal plate faces a cleaning arm conventional cutting edge;
setting flushing water pressure P =8-12MPa, water flow rate 18-23L/min, forward cutting pressure F = 120-;
starting the cleaning device, rotating the cleaning arm, mechanically rotating to destroy a compact shell on the surface of the anode mud, washing the anode mud obtained by crushing the surface of the anode by using high-pressure water during the rotating cutting, and moving the metal anode plate to be cleaned in the vertical direction to clean the odd groups of anode plates;
and (4) setting the reverse cutting pressure F =120-150N, matching the cleaning arm with the even number of groups of anode metal plates, and repeating the step (3) to realize the cleaning of the even number of groups of anode plates.
2. The conformal high-efficiency anode mud composite cleaning method according to claim 1, characterized in that: in the step (1), the cleaning arm is a hollow tube with a spiral profiling cutting edge and a high-pressure water nozzle, wherein the radius of the cutting edge is 120mm, the pitch of the cutting edge is 100mm, the taper of the profiling part is 1, the space between the high-pressure nozzles is 100mm, the diameter of the nozzles is 1.8mm, and the jet angle of the nozzles is 40 degrees.
3. The conformal high-efficiency anode mud composite cleaning method according to claim 1, characterized by comprising the following steps: the cutting and cleaning process in the step (2) is controlled by constant pressure; the spring mechanism is adopted to provide pressure, and the pressure is selected according to the device and the anode mud strengthTechnological parameters and cutting pressure meet the following requirements:
wherein F is the working pressure, R is the radius of the cutting edge, h is the penetration of the cutting edge, b is the width of the cutting edge, N is the number of the cutting edges, RCThe blade penetration h is related to the electrolysis times of the anode plate for passivating the compressive strength of the anode mud, and the result of the test shows that h =20 multiplied by 0.8t-1Wherein t is the number of electrolysis times; the width of the cutting edges is 2mm, and the number of the cutting edges is 12.
4. The conformal high-efficiency anode mud composite cleaning method according to claim 1, characterized by comprising the following steps: the impact force of the high-pressure water cleaning water flow in the step (2) meets the following requirements:
wherein F is the theoretical water jet impact force, q is the water jet volume flow, and p is the water jet pressure; in order to achieve the cleaning effect, the water jet impact force is larger than 50N.
5. The conformal high-efficiency anode mud composite cleaning method according to claim 4, characterized by comprising the following steps: the water jet impact force is larger than 50N, and at the moment, the optimal cost performance parameter of the water jet volume flow and the water jet pressure is q = 18-23L/min, and p =8-12 MPa.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110736174.4A CN113458056A (en) | 2021-06-30 | 2021-06-30 | Conformal high-efficiency anode mud composite cleaning method |
| PCT/CN2021/122541 WO2023272999A1 (en) | 2021-06-30 | 2021-10-08 | Conformal and efficient integrated method for cleaning anode sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110736174.4A CN113458056A (en) | 2021-06-30 | 2021-06-30 | Conformal high-efficiency anode mud composite cleaning method |
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| CN113458056A true CN113458056A (en) | 2021-10-01 |
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| CN202110736174.4A Pending CN113458056A (en) | 2021-06-30 | 2021-06-30 | Conformal high-efficiency anode mud composite cleaning method |
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| WO (1) | WO2023272999A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023272999A1 (en) * | 2021-06-30 | 2023-01-05 | 兰州理工大学 | Conformal and efficient integrated method for cleaning anode sludge |
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- 2021-10-08 WO PCT/CN2021/122541 patent/WO2023272999A1/en unknown
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