CN102601353B - Full-automatic silver powder centrifugal filtering and washing device and silver powder washing method - Google Patents
Full-automatic silver powder centrifugal filtering and washing device and silver powder washing method Download PDFInfo
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- CN102601353B CN102601353B CN2012100659804A CN201210065980A CN102601353B CN 102601353 B CN102601353 B CN 102601353B CN 2012100659804 A CN2012100659804 A CN 2012100659804A CN 201210065980 A CN201210065980 A CN 201210065980A CN 102601353 B CN102601353 B CN 102601353B
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- silver powder
- drum
- outer drum
- rotary drum
- washing
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- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 66
- 239000004332 silver Substances 0.000 title claims abstract description 66
- 239000000843 powder Substances 0.000 title claims abstract description 63
- 238000005406 washing Methods 0.000 title claims abstract description 27
- 238000001914 filtration Methods 0.000 title claims abstract description 14
- 239000003792 electrolyte Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000012153 distilled water Substances 0.000 claims description 13
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 4
- 239000012065 filter cake Substances 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000001360 synchronised Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000010970 precious metal Substances 0.000 description 3
- 229920001780 ECTFE Polymers 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N Silver nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002335 preservative Effects 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920002456 HOTAIR Polymers 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The invention relates to a full-automatic silver powder centrifugal filtering and washing device and a silver powder washing method, wherein the device comprises an engine base (1), a housing which is installed on the engine base and a cover (6) which is mounted on the top of the housing. The method provided by the invention realizes full automation for washing and filtering silver powder, improves the electrolytic silver powder washing efficiency, reduces production cost and improves metal recovery.
Description
Technical field
The present invention relates to the method and technology field of precious metal smelting industry for the special equipment of electrolytic silver powder washing and filtering and washing silver powder.
Background technology
In the precious metal smelting silver preparing electrolysis process, silver powder goes out in the groove process to contain a certain amount of silver nitrate electrolyte in electrolysis, for guaranteeing the silver powder product quality, must the silver powder after electrolysis be washed.At present, in the precious metal smelting industry, washing silver powder is mainly by manual work, and the silver powder be about to out after groove is placed in sink, inject distilled water immersion and manually stir, cyclic washing, until the silver powder wash water is neutral.After washing, silver powder does not filter, and water content is higher, is about 7%-10%, need toast 3-4 hour with hot-air oven, after drying, could be used for next process.In addition, the leaching requirement of washing use is larger, has not only increased the heavy silver work of sodium chloride, and the valuable metal loss is large, produces a large amount of wash waters simultaneously and enters cleaning system, has increased cost for wastewater treatment.Therefore,, there are the shortcomings such as production efficiency is low, labour intensity is large, and the loss of valuable metal silver is many, and the slurry consumption is large in traditional manual work, has been not suitable with the needs of modern production.
Summary of the invention
The objective of the invention is to solve the deficiencies in the prior art, provide a kind of and can carry out to electrolytic silver powder the special purpose device of centrifugal filtration, washing, to realize the full-automation of washing and filtering silver powder work, alleviate labor strength, improve the electrolytic silver powder detersive efficiency, reduce production costs, improve metal recovery rate.The present invention also provides the method that adopts special purpose device washing silver powder.
Purpose of the present invention is achieved through the following technical solutions:
A kind of full-automatic silver powder centrifugal filtration, wash mill, this device comprises support, be installed on the casing on support and be installed on the cover at casing top; Be provided with vertical central axis component in casing, be set on central axis component and with the outer drum that central axis component is fixedly connected, be arranged at the interior rotary drum in outer drum; Uniformly on the interior baseplane of outer drum be provided with at least two vertical steady pins, corresponding the bottom of interior rotary drum uniform be provided with at least two recessed in the vertical pin-and-hole of rotary drum sidewall, be inserted in steady pin by pin-and-hole interior rotary drum fixedly is fitted on outer drum, form the centrifugal device of double rotating drum structure; On drum inner wall, filter bag is installed outside, offers uniform dehydration through hole on the sidewall of outer drum; Be provided with the charging hole and the clean-out opening that lead to respectively cavity two side roof parts between interior rotary drum and outer drum on cover, at the bottom of shell be positioned at below outer drum, be provided with outage, in the bottom of interior rotary drum, discharge bucket is installed; The central shaft of central axis component connects with drive motors.
The present invention also is provided with the visor hole and observes lamp hole on cover.Casing, cover, outer drum, interior rotary drum adopt the 316L stainless steel to make, and surface spraying Halar material carries out preservative treatment.
Adopt a kind of method of full-automatic silver powder centrifugal filtration, wash mill washing silver powder, its method is as follows:
While adopting the inventive method washing silver powder, from charging hole is reinforced, the observation lamp of observing in lamp hole should be first opened, after in observing by the visor hole, rotary drum and outer drum work well, the silver powder containing nitric acid electrolyte could be added again.
The inside of contrive equipment adopts the centrifugal device of double rotating drum structure, not only can significantly improve the isolated by filtration effect, make the silver powder water content be reduced to 0.7%～0.8% by the 7%-10% under manually-operated, and can save the silver powder drying time, reduce energy consumption, production efficiency significantly improves.The silver powder that contains electrolyte enters the centrifugal device run up and carries out filtration washing, can also effectively prevent in the silver powder fill process, directly falls into discharging opening because silver powder proportion is excessive and causes bottom to leak the material problem.Adopt the present invention, nitric acid electrolysis mother liquor can be realized circulating and recovering, and loss rate of metal can significantly reduce.The present invention's work pattern of hand washing silver powder that adopted the automated production mode to substitute, can significantly reduce labor strength.The wash water consumption that laundry operation is used also, only for 1/5th of Traditional Man operation use amount, can be saved the effluent purifying processing cost, alleviates environmental protection pressure.The harm that in the time of also can preventing manually-operated, nitric acid electrolyte splashes the person is brought, effectively improve operating environment.
Below in conjunction with accompanying drawing, the present invention is described further.
The accompanying drawing explanation
The structural representation that Fig. 1 is apparatus of the present invention;
The top view that Fig. 2 is Fig. 1;
Fig. 3 is interior drum structure schematic diagram;
Fig. 4 is the outer drum structural representation.
The specific embodiment
As shown in the figure, the inventive system comprises support 1, be installed on the casing 5 on support and be installed on the cover 6 at casing top.Be provided with vertical central axis component 2 in casing 5, be set on central axis component 2 and with the outer drum 11 that central axis component 2 is fixedly connected, be arranged at the interior rotary drum 12 in outer drum.Uniformly on the interior baseplane of outer drum 11 be provided with at least two vertical steady pins 14, corresponding the bottom of interior rotary drum 12 uniform be provided with at least two recessed in the vertical pin-and-hole 13 of rotary drum sidewall, realize interior rotary drum 12 fixedly is fitted on outer drum 11 by pin-and-hole 13 being inserted in to steady pin 14, form the centrifugal device of double rotating drum structure.This example is symmetrically arranged with four steady pins 14 on the interior baseplane of outer drum 11, and correspondence is symmetrically arranged with four pin-and-holes 13 in the bottom of interior rotary drum 12.Three pin-and-holes 13 also can be set and three steady pins 14 are equipped, or five pin-and-holes 13 and five steady pins 14 equipped, or six pin-and-holes 13 and six steady pins 14 equipped.Filter bag 4 is installed on drum inner wall outside, offers uniform dehydration through hole 3 on the sidewall of outer drum.Be provided with the charging hole 7 and the clean-out opening 10 that lead to respectively cavity two side roof parts between interior rotary drum 12 and outer drum 11 on cover 6.Also be provided with visor hole 8 on cover and observe lamp hole 9, can open and observe the lamp hole power supply, observing silver powder charging situation and interior rotary drum and outer drum by the visor hole and whether rotate normally.Be provided with outage 17 at the bottom of shell be positioned at below outer drum, in the bottom of interior rotary drum 12, discharge bucket 16 be installed.The central shaft of central axis component 2 connects by driving belt with drive motors 15.Casing 5, cover 6, outer drum 11, interior rotary drum 12 all adopt the 316L stainless steel to make, and surface spraying Halar material carries out preservative treatment, can prevent that nitric acid electrolyte etching apparatus from polluting silver powder, guarantees the silver powder product quality.The present invention is the outer electric cabinet that is provided with also, start drive motors 15 by the operation electric cabinet, in driving, rotary drum and outer drum rotate, also can realize frequency control and establishment PLC program by the operation electric cabinet, set washing silver powder, filtering technique parameter, in realizing, the rotating speed of rotary drum and outer drum is controlled, and the mass ratio of charging silver powder and distilled water is controlled, the regulation and control of wash time etc.
When the present invention works, first interior rotary drum 12 is fixed on outer drum 11 by pin-and-hole 13 and steady pin 14, cover cover 6, filter bag 4 is installed on drum inner wall outside, open drive motors 15, the central shaft that drives central axis component 2 rotates, and realizes the running of double rotating drum structure centrifugal device, the synchronized rotation of interior rotary drum and outer drum, adjusting rotary speed is at 1050～1200r/min.Open the observation lamp of observing in lamp hole 9, in observing by visor hole 8, whether rotary drum and outer drum run well, after reaching rated speed, by controlling material inlet valve and flowmeter, from charging hole 7, add containing nitric acid electrolyte silver powder, start the operation of high-speed separation solid-liquid two-phase, now the silver powder containing nitric acid electrolyte filters between outer drum and interior rotary drum, charging stops charging after reaching predetermined volume, with time relay timing 2～3min, double rotating drum structure centrifugal device continues rotation 2～3min, treat that electrolyte is emptying, outer drum and interior rotary drum are rotated further.Owing to being provided with interior rotary drum, can material effectively be isolated between interior rotary drum and outer drum in the complete totally enclosed while of the discharging opening 19 of interior rotary drum inside, while having avoided silver powder that proportion is very large because of vertical charging, just directly fall into discharging opening 19 without washing, and the phenomenon that material occurs to leak.Silver powder is under centrifugal action, be trapped within on the filter cloth in outer drum and form the tubbiness filter cake, filtrate is that nitric acid electrolyte gets rid of to the cavity between outer drum 11 and casing 5 and converges in bottom through the dehydration through hole 3 of filter cloth on the outer drum sidewall, discharge by outage 17, enter subsequent handling.Nitric acid electrolyte can return to the electrolysis system circulating and recovering.After completing that electrolyte is centrifugal and deviating from operation, opening clean-out opening 10 adds distilled water to carry out laundry operation continuously, the mass ratio of controlling silver powder and distilled water is 1:0.8～1, wash water is discharged and is sent the cleaning system chlorination to process from bottom outage 17, with pH detection paper wash water, be to stop adding distilled water after neutrality, wash water is discharged and is delivered to the subsequent treatment operation from outage.Wash water is discharged rear shutdown fully, opens cover 6, and rotary drum 12 in taking out pulls filter bag 4 to break away from silver powder, is discharged at the interior collection of discharge bucket 16 under silver powder and delivers to next process.
Claims (2)
1. the method that full-automatic silver powder centrifugal filtration, wash mill wash silver powder, is characterized in that, method is as follows:
1) first interior rotary drum (12) is fixed on outer drum (11) by pin-and-hole (13) and steady pin (14), filter bag (4) is installed on drum inner wall outside, cover cover (6), start drive motors (15) and drive interior rotary drum and the synchronized rotation of outer drum, adjusting rotary speed is at 1050～1200r/min;
2) add the silver powder containing nitric acid electrolyte from charging hole (7), start the operation of high-speed separation solid-liquid two-phase, the silver powder that contains nitric acid electrolyte filters between outer drum and interior rotary drum, and charging stops charging after reaching predetermined volume, and outer drum and interior rotary drum are rotated further; Silver powder is under centrifugal action, be trapped within on the filter cloth in outer drum and form the tubbiness filter cake, filtrate sees through the dehydration through hole (3) of filter cloth on the outer drum sidewall and gets rid of to the cavity between outer drum (11) and casing (5) and converge in bottom, by outage (17), discharges and delivers to the subsequent treatment operation;
3) inject continuously distilled water by clean-out opening (10), the mass ratio of controlling silver powder and distilled water is 1:0.8～1, distilled water washing silver powder is also filtered, and washing is to stop adding distilled water after neutrality to detecting wash water, and wash water is discharged and delivered to the subsequent treatment operation from outage (17);
4) after wash water is discharged fully, the outer drum that shuts down (11) and interior rotary drum (12), open cover, and rotary drum in taking out pulls filter bag to break away from silver powder, is discharged under silver powder in discharge bucket (16), then delivers to subsequent handling.
2. the method for a kind of full-automatic silver powder centrifugal filtration according to claim 1, wash mill washing silver powder, it is characterized in that, from charging hole is reinforced, first open the observation lamp of observing in lamp hole (9), after in observing by visor hole (8), rotary drum and outer drum work well, then add the silver powder containing nitric acid electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100659804A CN102601353B (en) | 2012-03-14 | 2012-03-14 | Full-automatic silver powder centrifugal filtering and washing device and silver powder washing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100659804A CN102601353B (en) | 2012-03-14 | 2012-03-14 | Full-automatic silver powder centrifugal filtering and washing device and silver powder washing method |
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| Publication Number | Publication Date |
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| CN102601353A CN102601353A (en) | 2012-07-25 |
| CN102601353B true CN102601353B (en) | 2013-12-04 |
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| CN2012100659804A Active CN102601353B (en) | 2012-03-14 | 2012-03-14 | Full-automatic silver powder centrifugal filtering and washing device and silver powder washing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104858415B (en) * | 2015-04-23 | 2017-03-01 | 金川集团股份有限公司 | A kind of washing methods of super fine silver powder |
| CN104984836A (en) * | 2015-06-16 | 2015-10-21 | 镇江港和新型建材有限公司 | Centrifugal machine with double-layer rotary drum structure |
| CN108993782B (en) * | 2018-07-07 | 2020-02-07 | 廖大萍 | A hydrocyclone separation device for solid-liquid |
| CN113600809B (en) * | 2021-08-04 | 2023-01-03 | 重庆有研重冶新材料有限公司 | Electrolytic copper powder integrated processing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001070717A (en) * | 1999-09-07 | 2001-03-21 | Shisuto:Kk | Rotation filtration drum installed in overflow type filtration apparatus |
| CN201848140U (en) * | 2010-09-18 | 2011-06-01 | 凯迈(洛阳)机电有限公司 | Drum-type filter and powder collecting device thereof |
| CN202052419U (en) * | 2011-04-02 | 2011-11-30 | 邱列扬 | Solid-liquid separation device |
| CN202006040U (en) * | 2011-04-13 | 2011-10-12 | 广东肇庆星湖生物科技股份有限公司 | Centrifugal extraction separator |
| CN202506837U (en) * | 2012-03-14 | 2012-10-31 | 云南驰宏锌锗股份有限公司 | Full automatic centrifugal filtration and washing device of silver powder |
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| CN102601353A (en) | 2012-07-25 |
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