CN211366985U

CN211366985U - Silver chloride powder self-cleaning device of silver nitrate preparation

Info

Publication number: CN211366985U
Application number: CN201922022620.6U
Authority: CN
Inventors: 俸富诚; 高俊峰; 李涛; 葛素志; 罗仁昆; 李育林
Original assignee: Zijin Copper Co Ltd
Current assignee: Zijin Copper Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-28
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a silver chloride powder self-cleaning device of silver nitrate preparation, the agitator of connecting including filter tank, filter, fixed driving motor in filter tank upper end and driving motor, filter tank internally mounted has the filter, and the filter tank upper end is fixed with driving motor through the support, and the agitator includes telescopic link and stirring rake, the apron that can open is installed to the filter tank upper end, installs vacuum tube on the filter tank of filter below, and installs the drain pipe bottom the filter tank. This silver chloride powder self-cleaning device of silver nitrate preparation, agitating unit replace the manual work and wash, adopt inverter motor automatic control agitator rotational speed, in the middle of the agitator embedding silver chloride powder to reach and wash clean purpose, can select the washing number of times according to washing clean degree needs, wash at every turn and finish, adopt the vacuum filtration mode to make the wash water discharge equally, stir many times repeatedly and wash and finally guarantee the sanitization.

Description

Silver chloride powder self-cleaning device of silver nitrate preparation

Technical Field

The utility model relates to a silver chloride powder field for hydrometallurgy process production specifically is a silver chloride powder self-cleaning device of silver nitrate preparation.

Background

The gold mud obtained by the zinc powder replacement process contains gold components, and a large amount of silver is simultaneously separated out, so that the gold mud contains a large amount of silver, zinc powder which is not completely reacted and other impurities besides gold. The gold and silver must be purified continuously by the gold mud, and the gold and silver must be separated firstly. At present, the commonly adopted process is a nitric acid silver separation process, namely, nitric acid is adopted to dissolve silver powder and zinc powder, and gold is not dissolved in nitric acid, so that gold and silver are separated. The main components of the dissolved silver nitrate solution are silver nitrate and zinc nitrate, sodium chloride is added after clarification to obtain silver chloride precipitate, so that silver and zinc are separated. The chemical reaction for producing the silver chloride is as follows: AgNO3+ NaCl ↓ + NaNO 3; the generated silver chloride powder is repeatedly washed by hot water, impurities are washed away to obtain pure silver chloride powder, and the silver powder is replaced by iron powder to obtain silver powder, wherein the chemical reaction of the silver powder production is as follows: AgCl + Fe ═ Ag ↓ + FeCl; the displacement reaction is completed in water under sufficient stirring.

And drying the silver powder, and then smelting in an intermediate frequency furnace to obtain silver ingots.

Whether the quality of the silver ingots produced by the nitric acid silver separation process reaches the standard depends on whether the silver chloride powder and the silver powder are thoroughly cleaned in the process, and particularly the cleaning process of the silver chloride powder is particularly critical because various acid-soluble impurities such as zinc nitrate and the like brought by silver nitrate solution are mixed in the silver chloride precipitation generation process. If the silver chloride is not cleaned completely or the silver chloride is not uniformly turned in the cleaning process to cause silver chloride agglomeration, acid-soluble impurities enter a silver powder production link to cause the agglomerated silver chloride in the silver powder to be carried and enter an ingot casting process finally, so that the quality of a silver ingot does not reach the standard.

The silver chloride is cleaned by high-temperature hot water, and is manually stirred repeatedly by a rake, and after the silver chloride is fully stirred, the silver chloride is filtered in vacuum by an air compressor, so that the aim of solid-liquid separation is fulfilled. In order to ensure thorough cleaning, the silver chloride powder needs to be manually cleaned repeatedly and filtered for several times until the silver chloride powder becomes non-sticky fine powder, which can be used as a judgment basis for cleaning.

The cleaning process of the silver chloride adopts an iron rake stirring mode, the labor intensity is high, the temperature is high, and certain damage is caused to the occupational health of workers. If the cleaning times do not reach the specified times, the quality of the final silver ingots is affected, and the product quality and the brands of the silver ingots are adversely affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming the problem that the background art provided, provide a silver chloride powder self-cleaning device of silver nitrate preparation.

In order to achieve the above object, the utility model provides a following technical scheme: the automatic silver chloride powder cleaning device prepared from silver nitrate comprises a filter tank, a filter plate, a driving motor fixed at the upper end of the filter tank and a stirrer connected with the driving motor, wherein the filter plate is installed inside the filter tank, filter cloth is placed on the filter plate, the driving motor is fixed at the upper end of the filter tank through a support, an output shaft of the driving motor is connected with a telescopic pipe, the telescopic pipe is connected with the stirrer, the stirrer comprises a telescopic rod and a stirring paddle, and the telescopic rod is installed inside the telescopic pipe and is regulated to lift through a bolt;

the filter tank is characterized in that an openable cover plate is installed at the upper end of the filter tank, a feeding pipeline is arranged on the filter tank on the side face of the cover plate, a hot water pipe is arranged on the filter tank on the side face of the feeding pipeline, a vacuumizing pipe is installed on the filter tank below the filter plate, and a drain pipe is installed at the bottom of the filter tank.

Preferably, the apron of installation is the PP material constitution on filter and the filter, and the filter that the filter inslot portion set up constitutes for the PP material to be covered with the filtration pore in the middle of the filter, the filter cloth that covers above the filter simultaneously adopts the canvas material.

Preferably, the stirrer is made of titanium, and the left and right parts of rake teeth welded at the bottom of the stirring paddle below the stirrer are arranged in a staggered opposite mode.

Preferably, the telescopic tube is provided with a plurality of groups of adjusting holes, the telescopic rod is installed inside the telescopic tube in a slidable manner, the bolt penetrates through the length of the adjusting hole to adjust the length of the telescopic rod, and meanwhile the telescopic rod is connected with the top plate of the filter plate in a sliding manner.

Preferably, the driving motor is YVF90S-4 variable frequency motor, and the driving motor is electrically connected with the variable frequency device, and the variable frequency device is connected with the power supply, simultaneously the bottom of the filter tank is an inclined structure, and the bottom of the inclined bottom plate at the bottom of the filter tank corresponds to the drain pipe arranged on the filter tank, and the vacuum pumping pipe and the drain pipe are provided with control valves.

Preferably, the hot water pipe is connected with hot water preparation equipment, the vacuumizing pipe is connected with a vacuumizing facility, and the drain pipe is discharged to the waste water environment-friendly pool for treatment.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the stirring device replaces manual cleaning, the rotating speed of the stirrer is automatically controlled by a variable frequency motor, the stirrer is embedded into the silver chloride powder, and the silver chloride powder is driven to rotate at a certain speed after a certain amount of high-temperature hot water is added, so that the aim of cleaning is fulfilled;

2. the agitator of belt cleaning device is by corrosion resistant titanium material preparation, and it is fixed by two screw rods with the motor connection position, can adjust the height of stirring rake as required to ensure that the stirring is abundant and thorough, be used for guaranteeing the washing effect, the part adopts dislocation opposition mode design about the welded rake teeth in stirring rake teeth bottom, and the part has the local symmetry position of rake teeth to be the vacancy about, can ensure that the silver chloride material homoenergetic is turned in place when the stirring rake is rotatory like this.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

fig. 3 is a schematic view of the filter plate according to the present invention.

Reference numbers in the figures: 1. a filter tank; 2. a filter plate; 3. filtering cloth; 4. a telescopic rod; 5. an adjustment hole; 6. a telescopic sleeve; 7. a drive motor; 8. a frequency conversion device; 9. a feed line; 10. A hot water pipe; 11. a stirring paddle; 12. rake teeth; 13. vacuumizing a tube; 14. a drain pipe; 15. A cover plate; 16. and (5) filtering holes.

Detailed Description

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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the automatic silver chloride powder cleaning device prepared from silver nitrate comprises a filter tank 1, a filter plate 2, a driving motor 7 fixed at the upper end of the filter tank 1 and an agitator connected with the driving motor 7, wherein the filter plate 2 is installed inside the filter tank 1, filter cloth 3 is placed on the filter plate 2, the driving motor 7 is fixed at the upper end of the filter tank 1 through a support, an output shaft of the driving motor 7 is connected with a telescopic pipe 6, the telescopic pipe 6 is connected with the agitator, the agitator comprises a telescopic rod 4 and an agitating paddle 11, and the telescopic rod 4 is installed inside the telescopic pipe 6 and is adjusted to lift through a bolt; an openable cover plate 15 is arranged at the upper end of the filter tank 1 and is used for preventing materials from splashing due to too fast stirring, a feed pipeline 9 is arranged on the filter tank 1 on the side surface of the cover plate 15, a hot water pipe 10 is arranged on the filter tank 1 on the side surface of the feed pipeline 9, a vacuumizing pipe 13 is arranged on the filter tank 1 below the filter plate 2, a drain pipe 14 is arranged at the bottom of the filter tank 1, the hot water pipe 10 is connected with hot water preparation equipment, the vacuumizing pipe 13 is connected with a vacuumizing facility, the draining pipe 14 is discharged into a waste water environment-friendly pool for treatment and then is recycled, the filter plate 2 and the cover plate 15 arranged on the filter plate 2 are both made of PP materials, the filter plate 2 arranged in the filter tank 1 is made of PP materials, filter holes 16 are fully distributed in the middle of the filter plate 2, meanwhile, the filter cloth 3 covered above the filter plate, the size of the filtration cloth filtration pore is selected according to the actual use to ensure that the silver chloride material does not leak, the stirrer is made of titanium material, the left and right parts of the rake teeth 12 welded at the bottom of the stirring paddle 11 below the stirrer are arranged in a staggered opposite mode, and the symmetrical positions of the left and right parts with the rake teeth are all vacant positions, so that the silver chloride material can be ensured to be stirred in place when the stirring paddle rotates.

The telescopic pipe 6 is provided with a plurality of groups of adjusting holes 5, the telescopic rod 4 is installed inside the telescopic pipe 6 and can slide, bolts penetrate through the adjusting holes 5 to adjust the length of the telescopic rod 4, meanwhile, the telescopic rod 4 is connected with a top plate of the filter plate 2 in a sliding way, a stirrer of the cleaning device is made of anti-corrosion titanium materials, the part connected with the motor is fixed by two screw rods, the height of a stirring paddle can be adjusted according to requirements to ensure sufficient and thorough stirring so as to ensure the washing effect, the driving motor 7 is an YVF90S-4 variable frequency motor, the driving motor 7 is electrically connected with a variable frequency device 8, the variable frequency device 8 is connected with a power supply, the stirring rotating speed can be controlled, all materials can be turned at the optimal rotating speed, the rotating speed can not be too fast or too slow, meanwhile, the bottom of the filter tank 1 is of an inclined structure, and the bottom of an inclined bottom plate at the bottom of the filter, the inside of the filter tank 1 can be evacuated, and the evacuation pipe 13 and the drain pipe 14 are provided with control valves.

Before the silver chloride slurry is fed, the cover plate 15 is opened, the clean filter cloth 3 is arranged above the filter plate 2, the slurry is discharged onto the filter plate 2 and the filter cloth 3 through the feeding pipeline 9, because the vacuumizing device is not opened yet, the slurry can not automatically realize suction filtration, because the silver chloride powder blocks the small holes of the filter cloth 3, the feed liquid leaked from the filter cloth 3 is very little, the slurry stops feeding after submerging the stirring paddle 11, too much feed is easy to overflow, at the moment, the vacuumizing valve on the vacuumizing pipe 13 is opened, when the solution of the silver chloride slurry is completely pumped until the solution can not be further pumped, the vacuumizing valve on the vacuumizing pipe 13 is closed, at the moment, the hot water valve arranged on the hot water pipe 10 is opened, the temperature of the hot water can reach 100 ℃, hot water is injected into the slurry, after the hot water stirring paddle 11 is submerged, the hot water valve on the hot water pipe 10 is closed, and then the height of the stirring paddle, the bolt of the telescopic rod 4 and the telescopic sleeve 6 is taken down, the stirring paddle 11 is manually pressed into the slurry, attention is paid to the fact that the filter cloth cannot be contacted, then the bolt is locked, the cover plate 15 is closed, stirring can be started, the initial speed is slow, the rotating speed is gradually increased after stirring is stable, the final rotating speed is preferably 20-30 r/min, after about 3-5 min of cleaning, the driving motor 7 is closed, after the stirring paddle 11 stops rotating, the cover plate 15 is opened, the height of the stirring paddle 11 is continuously reduced to the lowest position, attention is paid to the fact that the filter cloth is not contacted as a bottom line, the cover plate 15 is closed, stirring is continuously started in the same mode, after 3-5 min, the driving motor 7 is also closed, after the stirring paddle 11 stops rotating, the cover plate 15 is opened, the slurry on the inner side face of the cover plate 15 and the filtering tank 1 is washed by hot water, and the stirring, and (3) washing the stirring paddle 11 with hot water, then opening a vacuumizing valve on a vacuumizing pipe 13, pumping out the first cleaning liquid in the slurry, then repeatedly cleaning for 4-5 times according to the steps until filtrate is thoroughly clarified to serve as a mark for cleaning silver chloride powder, after the last cleaning and the suction filtration, shoveling the silver chloride out of the filter tank 1, and finishing the cleaning work of the silver chloride after the next process treatment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a silver chloride powder self-cleaning device of silver nitrate preparation, includes agitator that filter tank (1), filter (2), fixed driving motor (7) in filter tank (1) upper end and driving motor (7) are connected, its characterized in that: the filter plate (2) is installed inside the filter tank (1), the filter cloth (3) is placed on the filter plate (2), the driving motor (7) is fixed at the upper end of the filter tank (1) through a support, the output shaft of the driving motor (7) is connected with the telescopic pipe (6), the telescopic pipe (6) is connected with the stirrer, the stirrer comprises a telescopic rod (4) and a stirring paddle (11), and the telescopic rod (4) is installed inside the telescopic pipe (6) and is adjusted to lift through bolts;

an openable cover plate (15) is installed at the upper end of the filter tank (1), a feeding pipeline (9) is arranged on the filter tank (1) on the side face of the cover plate (15), a hot water pipe (10) is arranged on the filter tank (1) on the side face of the feeding pipeline (9), a vacuumizing pipe (13) is installed on the filter tank (1) below the filter plate (2), and a drain pipe (14) is installed at the bottom of the filter tank (1).

2. The automatic cleaning device for silver chloride powder prepared from silver nitrate according to claim 1, characterized in that: the filter is characterized in that the cover plate (15) installed on the filter plate (2) and the filter plate (2) is made of PP materials, the filter plate (2) arranged inside the filter tank (1) is made of PP materials, filter holes (16) are fully distributed in the middle of the filter plate (2), and meanwhile the filter cloth (3) covered above the filter plate (2) is made of canvas materials.

3. The automatic cleaning device for silver chloride powder prepared from silver nitrate according to claim 1, characterized in that: the stirrer is made of titanium, and the left and right parts of rake teeth (12) welded at the bottom of a stirring paddle (11) below the stirrer are arranged in a staggered opposite mode.

4. The automatic cleaning device for silver chloride powder prepared from silver nitrate according to claim 1, characterized in that: the telescopic pipe is characterized in that a plurality of groups of adjusting holes (5) are formed in the telescopic pipe (6), the telescopic rod (4) is installed inside the telescopic pipe (6) in a slidable mode, the bolt penetrates through the adjusting holes (5) to adjust the length of the telescopic rod (4), and meanwhile the telescopic rod (4) is connected with the filter plate (2) in a sliding mode.

5. The automatic cleaning device for silver chloride powder prepared from silver nitrate according to claim 1, characterized in that: the driving motor (7) is a YVF90S-4 variable frequency motor, the driving motor (7) is electrically connected with the variable frequency device (8), the variable frequency device (8) is connected with a power supply, the bottom of the filter tank (1) is of an inclined structure, the bottom of an inclined bottom plate at the bottom of the filter tank (1) corresponds to a drain pipe (14) arranged on the filter tank (1), and control valves are arranged on the vacuumizing pipe (13) and the drain pipe (14).

6. The automatic cleaning device for silver chloride powder prepared from silver nitrate according to claim 1, characterized in that: the hot water pipe (10) is connected with hot water preparation equipment, the vacuumizing pipe (13) is connected with a vacuumizing facility, and the water discharge pipe (14) is discharged to a waste water environment-friendly pool for treatment.