CN102601353A - 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 PDF

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CN102601353A
CN102601353A CN2012100659804A CN201210065980A CN102601353A CN 102601353 A CN102601353 A CN 102601353A CN 2012100659804 A CN2012100659804 A CN 2012100659804A CN 201210065980 A CN201210065980 A CN 201210065980A CN 102601353 A CN102601353 A CN 102601353A
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silver powder
drum
outer drum
rotary drum
hole
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CN102601353B (en
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王少龙
张文金
王瑞山
廖为新
田惟维
何斌
余秋雁
丁旭
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Yunnan Chihong Zinc and Germanium Co Ltd
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Yunnan Chihong Zinc and Germanium Co Ltd
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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

The method of a kind of full-automatic silver powder centrifugal filtration, wash mill and washing silver powder
Technical field
The present invention relates to the method and technology field that the precious metal smelting industry is used for the special equipment and the washing silver powder of electrolytic silver powder washing and filtering.
Background technology
In the precious metal smelting silver preparing electrolysis process, silver powder goes out to contain a certain amount of silver nitrate electrolyte in the groove process in electrolysis, for guaranteeing the silver powder product quality, must the silver powder after the electrolysis be washed.At present, in the precious metal smelting industry, the main manual work of leaning on of silver powder washing, the silver powder that is about to out behind the groove places sink, injects distilled water immersion and manual stirring, cyclic washing, is neutral until the silver powder wash water.Washing back silver powder does not filter, and water content is higher, is about 7%-10%, needs just can be used for next process with hot-air oven baking 3-4 hour after the drying.In addition, the leaching requirement of washing usefulness is bigger, has not only increased the heavy silver work of sodium chloride, and the valuable metal loss is big, produces a large amount of wash waters simultaneously and gets into cleaning system, has increased cost for wastewater treatment.Therefore, there are shortcomings such as production efficiency is low, labour intensity is big, and the loss of valuable metal silver is many, and the slurry consumption is big in the conventional artificial operation, the needs of incompatibility modern production.
Summary of the invention
The objective of the invention is to solve the deficiency of prior art; A kind of isolated plant that can carry out centrifugal filtration, washing to electrolytic silver powder is provided; 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 isolated plant washing silver powder.
The object of the invention is realized through following technical scheme:
A kind of full-automatic silver powder centrifugal filtration, wash mill, this device comprise support, be installed on the casing on the support and be installed on the cover at casing top; In casing, be provided with vertical central axis component, be set on the central axis component and with the outer drum that central axis component is fixedly connected, be arranged at the interior rotary drum in the outer drum; On the interior baseplane of outer drum, be uniformly distributed with and be provided with at least two vertical steady pins; Corresponding the bottom of interior rotary drum be uniformly distributed be provided with at least two recessed in the vertical pin-and-hole of rotary drum sidewall; Be inserted in steady pin through pin-and-hole interior rotary drum fixedly is fitted on the outer drum, constitute the centrifugal device of double rotating drum structure; On the drum inner wall filter bag is installed outside, on the sidewall of outer drum, offers the dehydration through hole that is uniformly distributed with; The charging hole and the clean-out opening of cavity two side roof parts between rotary drum and the outer drum in cover is provided with and leads to respectively are provided with outage at the bottom of shell that is positioned at below the outer drum, in the bottom of interior rotary drum discharge bucket are 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 the method for a kind of full-automatic silver powder centrifugal filtration, wash mill washing silver powder, its method is following:
Figure 652064DEST_PATH_IMAGE001
earlier with interior rotary drum through pin-and-hole and steady pin matching and fixing on outer drum; On the drum inner wall filter bag is installed outside; Cover cover; Start interior rotary drum of drive motors drive and outer drum and rotate with speed, the adjusting rotating speed is at 1050~1200r/min;
Figure 40844DEST_PATH_IMAGE002
adds the silver powder that contains nitric acid electrolyte from charging hole; The two phase operations of beginning high-speed separation solid-liquid; The silver powder that contains nitric acid electrolyte filters between outer drum and interior rotary drum; Charging stops charging after reaching predetermined volume; Outer drum and interior rotary drum are rotated further, and silver powder is trapped within and forms the tubbiness filter cake on the filter cloth in the outer drum under centrifugal action; Filtrating is got rid of to the cavity between outer drum and the casing and in the bottom through the dehydration through hole of filter cloth on the outer drum sidewall and is converged, and discharges through outage and delivers to the subsequent treatment operation;
Figure 709723DEST_PATH_IMAGE003
injects distilled water continuously through clean-out opening; The mass ratio of control silver powder and distilled water is 1:0.8~1; Distilled water washing silver powder also filters; Washing is to stop to add distilled water after the neutrality to detecting wash water, and wash water is discharged from outage and delivered to the subsequent treatment operation;
After
Figure 640770DEST_PATH_IMAGE004
wash water is discharged fully; Outer drum and interior rotary drum shut down; Open cover, rotary drum in taking out, the pulling filter bag breaks away from silver powder; Be discharged in the discharge bucket under the silver powder, deliver to subsequent handling again.
When adopting the inventive method washing silver powder, before reinforced, the observation lamp of observing in the lamp hole should be opened earlier, after rotary drum and outer drum work well in observing through the visor hole, the silver powder that contains nitric acid electrolyte could be added again from charging hole.
The centrifugal device of double rotating drum structure is adopted in the inside of contrive equipment; Not only can significantly improve the isolated by filtration effect, make the silver powder water content be reduced to 0.7%~0.8%, and can save the silver powder drying time by the 7%-10% under the manually-operated; Reduce energy consumption, production efficiency significantly improves.The silver powder that contains electrolyte gets into the centrifugal device that runs up and carries out filtration washing, can also effectively prevent in the silver powder fill process, directly falls into discharging opening because of silver powder proportion is excessive and causes the 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 adopts the automated production mode to substitute the work pattern of hand washing silver powder, can significantly reduce labor strength.The wash water consumption that laundry operation uses is 1/5th of traditional manually-operated use amount only also, can practice thrift the effluent purifying processing cost, alleviates environmental protection pressure.The harm that nitric acid electrolyte splashes the person is brought in the time of also can preventing manually-operated effectively improves operating environment.
Below in conjunction with accompanying drawing the present invention is done further explanation.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is interior drum structure sketch map;
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 the support and be installed on the cover 6 at casing top.In casing 5, be provided with vertical central axis component 2, be set on the 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 the outer drum.On the interior baseplane of outer drum 11, be uniformly distributed with and be provided with at least two vertical steady pins 14; Corresponding the bottom of interior rotary drum 12 be uniformly distributed 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 the outer drum 11 through pin-and-hole 13 being inserted in steady pin 14, constitute the centrifugal device of double rotating drum structure.This instance is symmetrically arranged with four steady pins 14 on the interior baseplane of outer drum 11, correspondence is symmetrically arranged with four pin-and-holes 13 in the bottom of interior rotary drum 12.Three pin-and-holes 13 can be set also and three steady pins 14 are equipped, or five pin-and-holes 13 are equipped with five steady pins 14, or six pin-and-holes 13 and six steady pins 14 are equipped with.Filter bag 4 is installed on the drum inner wall outside, on the sidewall of outer drum, offers the dehydration through hole 3 that is uniformly distributed with.Cover 6 is provided with the charging hole 7 and clean-out opening 10 that leads to cavity two side roof parts between interior rotary drum 12 and the outer drum 11 respectively.Also be provided with visor hole 8 on the cover and observe lamp hole 9, can open and observe the lamp hole power supply, whether rotary drum and outer drum rotate normally in reaching through visor hole observation silver powder charging situation.Bottom of shell being positioned at below the outer drum is provided with outage 17, in the bottom of interior rotary drum 12 discharge bucket 16 is installed.The central shaft of central axis component 2 and drive motors 15 connect through driving belt.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 also outer electric cabinet that is provided with of the present invention; Start drive motors 15 through the operation electric cabinet, rotary drum and outer drum rotate in driving, and also can realize frequency control and establishment PLC program through the operation electric cabinet; Set silver powder washing, filtering technique parameter; The rotating speed of rotary drum and outer drum control in realizing, the mass ratio control of charging silver powder and distilled water, the adjusting of wash time and control etc.
When the present invention works, earlier with interior rotary drum 12 through pin-and-hole 13 and steady pin 14 matching and fixing on outer drum 11, cover cover 6; Filter bag 4 is installed on the 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; Interior rotary drum and outer drum rotate with speed, and regulating rotating speed is at 1050~1200r/min.Open the observation lamp of observing in the lamp hole 9, whether rotary drum and outer drum run well in observing through visor hole 8, reach rated speed after; Contain nitric acid electrolyte silver powder through control charging valve and flowmeter from charging hole 7 addings; The two phase operations of beginning high-speed separation solid-liquid, the silver powder that contain nitric acid electrolyte this moment filters between outer drum and interior rotary drum, and charging stops charging after reaching predetermined volume; With time relay timing 2~3min; Double rotating drum structure centrifugal device continues rotation 2~3min, treats the electrolyte emptying, and outer drum and interior rotary drum are rotated further.Owing to be provided with interior rotary drum; Can be in inner discharging opening 19 complete closed of interior rotary drum, in material effectively is isolated between rotary drum and the outer drum, when having avoided the very big silver powder of proportion because of vertical charging; Just directly fall into discharging opening 19 without washing, and the phenomenon that material takes place to leak.Silver powder is under centrifugal action; Be trapped within and form the tubbiness filter cake on the filter cloth in the outer drum; Filtrating is that nitric acid electrolyte then 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 the casing 5 and in the bottom and converge; Discharge through outage 17, get into subsequent handling.Nitric acid electrolyte can return the electrolysis system circulating and recovering.After accomplishing that electrolyte is centrifugal and deviating from operation; Open the clean-out opening 10 continuous distilled water that add and carry out laundry operation; The mass ratio of control silver powder and distilled water is 1:0.8~1; Wash water from the bottom outage 17 discharge and send the cleaning system chloridized, stop to add distilled water after using pH detection paper wash water as neutrality, wash water is delivered to the subsequent treatment operation from the outage discharge.Wash water is discharged the back fully and is shut down, and opens cover 6, rotary drum 12 in taking out, and pulling filter bag 4 breaks away from silver powder, is discharged under the silver powder to collect in the discharge bucket 16 to deliver to next process.

Claims (5)

1. a full-automatic silver powder centrifugal filtration, wash mill is characterized in that,
Figure 327485DEST_PATH_IMAGE001
this device comprises support (1), be installed on the casing (5) on the support and be installed on the cover (6) at casing top;
Figure 600335DEST_PATH_IMAGE002
is provided with vertical central axis component (2) in casing (5); Be set in that central axis component (2) is gone up and with the outer drum (11) that central axis component (2) is fixedly connected, be arranged at the interior rotary drum (12) in the outer drum;
Figure 329256DEST_PATH_IMAGE003
is uniformly distributed with on the interior baseplane of outer drum (11) and is provided with at least two vertical steady pins (14); Corresponding the bottom of interior rotary drum (12) be uniformly distributed be provided with at least two recessed in the vertical pin-and-hole (13) of rotary drum sidewall; Be inserted in steady pin (14) through pin-and-hole (13) interior rotary drum (12) fixedly is fitted on the outer drum (11), constitute the centrifugal device of double rotating drum structure; Filter bag (4) is installed on the drum inner wall outside, on the sidewall of outer drum, offers the dehydration through hole (3) that is uniformly distributed with;
Figure 595021DEST_PATH_IMAGE004
cover (6) is provided with charging hole (7) and the clean-out opening (10) that leads to cavity two side roof parts between interior rotary drum (12) and the outer drum (11) respectively; Bottom of shell being positioned at below the outer drum is provided with outage (17), in the bottom of interior rotary drum (12) discharge bucket (16) is installed;
The central shaft of central axis component (2) connects with drive motors (15).
2. a kind of full-automatic silver powder centrifugal filtration according to claim 1, wash mill is characterized in that, on cover (6), also are provided with visor hole (8) and observe lamp hole (9).
3. a kind of full-automatic silver powder centrifugal filtration according to claim 1 and 2, wash mill; It is characterized in that; Casing (5), cover (6), outer drum (11), interior rotary drum (12) adopt the 316L stainless steel to make, and surface spraying Halar material carries out preservative treatment.
4. adopt a kind of full-automatic silver powder centrifugal filtration according to claim 1 or claim 2, the method for wash mill washing silver powder, it is characterized in that method is following:
Figure 802329DEST_PATH_IMAGE001
earlier with interior rotary drum (12) through pin-and-hole (13) and steady pin (14) matching and fixing on outer drum (11); Filter bag (4) is installed on the drum inner wall outside; Cover cover (6); Start interior rotary drum of drive motors (15) drive and outer drum and rotate with speed, the adjusting rotating speed is at 1050~1200r/min;
adds the silver powder that contains nitric acid electrolyte from charging hole (7); The two phase operations of beginning high-speed separation solid-liquid; The silver powder that contains nitric acid electrolyte filters between outer drum and interior rotary drum; 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 and form the tubbiness filter cake on the filter cloth in the outer drum; Filtrating is got rid of to the cavity between outer drum (11) and the casing (5) and in the bottom through the dehydration through hole (3) of filter cloth on the outer drum sidewall and is converged, and discharges through outage (17) and delivers to the subsequent treatment operation;
Figure 822423DEST_PATH_IMAGE003
injects distilled water continuously through clean-out opening (10); The mass ratio of control silver powder and distilled water is 1:0.8~1; Distilled water washing silver powder also filters; Washing is to stop to add distilled water after the neutrality to detecting wash water, and wash water is discharged from outage (17) and delivered to the subsequent treatment operation;
After
Figure 112590DEST_PATH_IMAGE004
wash water is discharged fully; Outer drum (11) and interior rotary drum (12) shut down; Open cover, rotary drum in taking out, the pulling filter bag breaks away from silver powder; Be discharged under the silver powder in the discharge bucket (16), deliver to subsequent handling again.
5. the method for a kind of full-automatic silver powder centrifugal filtration according to claim 4, wash mill washing silver powder; It is characterized in that; From charging hole reinforced before; Open the observation lamp of observing in the lamp hole (9) earlier, after rotary drum and outer drum work well in observing through visor hole (8), add the silver powder that contains nitric acid electrolyte again.
CN2012100659804A 2012-03-14 2012-03-14 Full-automatic silver powder centrifugal filtering and washing device and silver powder washing method Active CN102601353B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104858415A (en) * 2015-04-23 2015-08-26 金川集团股份有限公司 Superfine silver powder washing method
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
CN108993782A (en) * 2018-07-07 2018-12-14 廖大萍 Spiral liquid separation device for solid-liquid
CN113600809A (en) * 2021-08-04 2021-11-05 重庆有研重冶新材料有限公司 Integrated processing device for electrolytic copper powder

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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
CN202052419U (en) * 2011-04-02 2011-11-30 邱列扬 Solid-liquid separation device
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Publication number Priority date Publication date Assignee Title
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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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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104858415A (en) * 2015-04-23 2015-08-26 金川集团股份有限公司 Superfine silver powder washing method
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
CN108993782A (en) * 2018-07-07 2018-12-14 廖大萍 Spiral liquid separation device for solid-liquid
CN113600809A (en) * 2021-08-04 2021-11-05 重庆有研重冶新材料有限公司 Integrated processing device for electrolytic copper powder

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