CN104805289B - The high efficiente callback automation equipment of cadmium ion and recovery method in a kind of high cadmium solution - Google Patents
The high efficiente callback automation equipment of cadmium ion and recovery method in a kind of high cadmium solution Download PDFInfo
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- CN104805289B CN104805289B CN201510138365.5A CN201510138365A CN104805289B CN 104805289 B CN104805289 B CN 104805289B CN 201510138365 A CN201510138365 A CN 201510138365A CN 104805289 B CN104805289 B CN 104805289B
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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
The present invention relates to high efficiente callback automation equipment and the recovery method thereof of cadmium ion in a kind of high cadmium solution, including reactor, motor, zinc metal sheet clamping device, agitating device, automaton, plural supersonic generator, several turbulent flow baffle plates;Described agitating device includes impeller and central shaft, described automaton includes fluid level control device, temperature controller, pH value controller, described motor is arranged on the middle part at the top of described reactor, and described zinc metal sheet clamping device is arranged on described inside reactor;Described supersonic generator is arranged on the outer wall of described reactor uniformly, and described steam pipework is looped around on described reactor wall uniformly, and a termination is stretched out outside described reactor, and described turbulent flow baffle plate is uniformly arranged on the inwall of described reactor.The inventive method solves tradition cadmium and reclaims a large amount of zinc powders of causing of mixed phase reaction pattern by Spongy Cadmium parcel, the problem such as zinc powder consumption is big, Spongy Cadmium purity is low, cost recovery is big.
Description
Technical field
The present invention relates to high efficiente callback automation equipment and the recovery method of cadmium ion in a kind of high cadmium solution,
It is specifically related to a kind of cadmium ion displacement using zinc powder and zinc metal sheet to be coupled as in reducing agent and high cadmium solution
Reaction, by using the phase reaction pattern that separates, the new and high technologies such as introducing Automated condtrol, batch (-type) are ultrasonic,
When realizing reclaiming displacement reaction terminal, Spongy Cadmium separates with zinc metal sheet, improves product quality, reduces raw material zinc
The automation equipment consumed and method.
Background technology
In hydrometallurgy electrolytic zinc industry, electrolysis preamble electrolyte Zhi Ye workshop section, the most repeatedly purify work
Sequence filter pressing produces substantial amounts of purification slag, containing the higher cadmium of grade in purification slag, purification slag through pulp,
Chemical combination leaches and high cadmium solution is made in impurity and purification;At present, major part electrolytic zinc enterprise uses mixed phase to put
Changing reaction pattern, during displacement reaction, a large amount of reducing agent zinc powders are wrapped up by Spongy Cadmium, it is impossible to react completely,
Causing zinc consumption amount too high during displacement reaction, product Spongy Cadmium purity is low, and product quality declines,
Reduce Business Economic Benefit.
The most traditional cadmium recovery method, mainly using zinc powder as reducing agent, adds reducing agent in being stirred continuously
High cadmium solution in, reclaim cadmium metal therein, show after deliberation, along with reaction carrying out, pH value of solution
Value rises, and zinc powder surface forms passivating film, and obstruction metallic zinc is entered with the cadmium ion displacement reaction in solution
One step is carried out, thus causes the zinc powder that partial particulate is big can not react complete, and remaining metallic zinc is generated
Cadmium metal parcel, finally sink to be mixed into bottom reaction container in resultant metal cadmium so that zinc consumption amount is big
And reducing the purity reclaiming cadmium metal, the zinc powder also resulting in high value becomes the zinc sulfate of low value, and
The current manual operation of enterprise is lack of standardization, technological parameter is unstable, causes cost recovery to increase.Therefore, as
What displaces the cadmium ion in solution quickly and efficiently important environment and economic implications.
Summary of the invention
The technical problem to be solved is to provide the high efficiente callback of cadmium ion in a kind of high cadmium solution
Automation equipment and recovery method thereof, this recovery method and device use zinc powder, zinc metal sheet coupling, molten
Cadmium ion in liquid carries out displacement reaction with zinc powder, zinc metal sheet in batches, makes full use of a small amount of zinc powder added,
The cadmium ion in solution is made to be replaced completely by zinc metal sheet, so that it is determined that reaction end, by automatically controlling
System, Vltrasonic device, temperature, pH monitoring device etc. assist, and displace cadmium metal quickly and efficiently, make
The content of the cadmium ion in waste liquid is preferably minimized, and reduces cadmium ion and enters the quantity of Waste Water Treatment, fall
Low waste water processing station intractability and processing cost, reduce outer row's cadmium ion and pollute.
The principle of the present invention is exactly reducing agent with high cadmium solution in the reaction of relative airtight cylinder cone end shape
Course of reaction all realizes separating in device phase displacement reaction, logical too small amount of zinc powder and zinc with reaction end
Sheet coupling uses, and makes the cadmium ion in solution the most replaced, improves displacement reaction efficiency and productivity.
The technical scheme is that cadmium ion in a kind of high cadmium solution
High efficiente callback automation equipment, including reactor, motor, zinc metal sheet clamping device, agitating device, from
Dynamic control assembly, plural supersonic generator, steam pipework and several turbulent flow baffle plates;
The bottom of described reactor is tapered, and described motor is arranged on the pars intermedia at the top of described reactor
Position, described zinc metal sheet clamping device is arranged on described inside reactor;
Described agitating device is arranged in described reactor, and is connected with described motor;Described automatic control
Assembly processed is positioned at the top of described reactor, and is connected with described reactor;
Described supersonic generator is arranged on the outer wall of described reactor uniformly, and described steam pipework is equal
Even is looped around on described reactor wall, and a termination is stretched out outside described reactor, described turbulent flow baffle plate
Uniformly it is arranged on the inwall of described reactor.
The invention has the beneficial effects as follows:
The present invention uses zinc powder and zinc metal sheet coupling, zinc powder and the cadmium ion in solution to carry out mixed phase and puts
Changing reaction, zinc metal sheet carries out separating phase displacement reaction with cadmium ion remaining in solution, finally gives purity and reach
To the cadmium metal of 90%, turbulent flow baffle plate and outer secondary are installed with batch (-type) Under Ultrasonic Vibration at inside reactor simultaneously
Swing device and solution is carried out turbulent flow concussion stirring, utilize the invigoration effect of ultrasound wave and the mechanical force of agitator
Remove the zinc salt passivating film on the surface being wrapped in zinc powder and zinc metal sheet, make zinc powder and zinc metal sheet surface remain alive
Property, the quick and high efficient reaction accelerating displacement cadmium is carried out.Meanwhile, course of reaction has pH value controller
With pH value real-time regulating apparatus, the impact of the rising causing pH value with the carrying out of reaction can be prevented effectively from,
Avoiding being formed on the surface of zinc powder or zinc metal sheet passivating film, hinder carrying out further of displacement reaction, utilizing should
Device can effectively reduce the reducing agent zinc consumption of unit metal cadmium, and increases substantially the gold of displacement
Belong to cadmium product purity.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described agitating device includes central shaft and impeller, one end of described central shaft and described electricity
Machine is connected, and the other end inserts in described reactor, and near the bottom of described reactor;Described center
If the distance being distributed on axle between the impeller that dried layer is not of uniform size, and adjacent two layers impeller is the most equal, institute
The impeller of the bottom stating central shaft is maximum, near reactor conical lower portion;Described zinc metal sheet clamping device passes through
Speed change set is connected with described central shaft, and zinc metal sheet upper end is placed in the middle of described zinc metal sheet clamping device, and passes through
Described zinc metal sheet clamping device is clamped fixing.
Using above-mentioned further scheme to provide the benefit that, the impeller of the bottom of described central shaft is maximum, leans on
Proximal response device conical lower portion (away from reactor conical lower portion 400~600mm), can be effectively by short grained
Zinc powder stirs to reactor top so that it is be again fully contacted reaction with solution, reduces zinc powder and falls to instead
Answer bottom device.
Further, except the impeller of the bottom of described central shaft, other impeller is respectively positioned on the clamping of described zinc metal sheet
In the middle of device, and zinc metal sheet with described zinc metal sheet clamping device and clamping thereof does not contacts.
Further, the frequency of described sonic generator is 10~150kHz, and the sound intensity is 1.0~5.0w/cm2,
The Vltrasonic device opening time: 0~15min, the Vltrasonic device shut-in time: 0~15min.
Further, a sidewall of described reactor is provided with acid adding pipeline and solution inlet port, described in add acid tube
The position that the position of the import on road is the highest higher than liquid level in described reactor, and it is positioned at described solution inlet port
Top;The pipeline of described acid adding pipeline extends in described reactor;The position of described solution inlet port is higher than
The position that in described reactor, liquid level is the highest.
Further, another sidewall of described reactor is provided with air vent, observation port and liquid discharge outlet,
Described observation port is between described air vent and described liquid discharge outlet, and described air vent is near described
Reactor head, described liquid discharge outlet is near described reactor bottom;The top of described reactor is provided with
Material inlet, described material inlet is positioned at the side of described motor, and near described motor;Described reaction
Being provided with solid phase outlet at the bottom cone mouth of device, the bottom welding of described reactor has several supporting legs.
Further, described automatic control unit includes fluid level control device, temperature controller and pH value control
Device processed, described fluid level control device, temperature controller and pH value controller are positioned at another of described motor
Side, and described fluid level control device is positioned at described Liquid level near described motor, described temperature controller
Between device and described pH value controller.
Further, in described high cadmium solution, the high efficiente callback automation equipment of cadmium ion also includes controlling system
System, described control system is to described supersonic generator, solution inlet port, fluid level control device, temperature control
Device processed and pH value controller etc. are controlled.
Another technical scheme that the present invention solves above-mentioned technical problem is as follows:
The efficient recycling method of cadmium ion in a kind of high cadmium solution, comprises the following steps:
1) being loaded in zinc metal sheet clamping device by reducing agent zinc metal sheet, air vent remains opening, high
Cadmium solution is entered in reactor by solution inlet port;
2) during in described high cadmium solution injecting reactor, when in reactor, solution exceedes reactor
During interior 1/2 volume, driven by motor central shaft at the uniform velocity stirs, and motor drives zinc metal sheet to press from both sides by speed change set
Holding device and zinc metal sheet rotates, meanwhile, zinc powder adds in reactor by material inlet, when high cadmium is molten
When the liquid level of liquid arrives 2/3 position of reaction vessel, fluid level control device feeds back signal to control system,
Control system controls solution inlet port valve and is automatically switched off, and stops injecting high cadmium solution, at central shaft and impeller
Stirring under, control system interval starts supersonic generator, makes described reducing agent zinc powder and zinc metal sheet with high
Cadmium solution is fully contacted reaction, and the cadmium metal making reaction generate is made in the stirring of ultrasonic strengthening and machinery
From zinc powder or the sur-face peeling of zinc metal sheet under with;
3) during zinc powder, zinc metal sheet and cadmium ion generation displacement reaction, the acid solution in high cadmium solution with
Zinc powder and zinc metal sheet react generation hydrogen, discharge hydrogen by described air vent, along with zinc powder, zinc metal sheet
Reaction with acid solution is carried out, and in reactor, the pH value of cadmium-containing solution raises, as the pH of solution in reactor
When value is increased to 4.5, pH value controller is to control system feedback signal, and control system controls to open acid adding
Pipe valve, the acidity shown in real time in reaction vessel by pH value controller controls acid adding amount with real-time,
In keeping reactor, pH stable is between 2~3;
4), in course of reaction, in reactor, zinc powder addition is less than the required theoretical amount (0.8-1.0 of reaction
Times), zinc powder is uniformly added in reactor in solution, and under impeller stirring action, described zinc powder upwards turns over
Rolling is fully contacted reaction with high cadmium solution in reactor, and the cadmium displaced is deposited on reaction under gravity
Device conical lower portion, after reaction terminates, the liquid discharge outlet of reactor is opened, and is arranged by the liquid in reactor
To the greatest extent, then turn on the solid phase outlet of reactor bottom, the scoriform thing in reactor and residual liquid are arranged
Go out, isolate spongy metal cadmium by screen cloth, via balling press, Spongy Cadmium is pressed into pie cadmium metal
Group,.
Further, in step 2) in, the pH of described high cadmium solution is 2~3.
Further, in step 3) in, during displacement reaction, the temperature of described high cadmium solution keeps
At 25~80 DEG C, after temperature reduces, temperature controller feedback signal controls certainly in control system, system
Moving and open steam pipework valve, steam heats, by temperature control to described high cadmium solution by steam pipework
Device processed, control system automatically controls size and the opening and closing of steam pipework valve, makes reactor temperature keep
Between 25~80 DEG C.
Beneficial effects of the present invention is as follows: efficient recycling method of the present invention by automation control system,
Formula of having a rest sonic oscillation device and mechanical stirring device, it is achieved automatically control solution concussion stirring, make full use of
Reducing agent zinc powder and zinc metal sheet, make the displacement reaction consumption of reducing agent zinc and cadmium ion close to theoretical level,
The cadmium metal purity displaced is high, and after reduction reaction simultaneously, the residual quantity of cadmium ion in solution, reduces unit
The cost of resultant metal cadmium, increases economic efficiency, and achieves again environmental benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high efficiente callback automation equipment of cadmium ion in height cadmium solution of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the control circuit figure of the high efficiente callback automation equipment of cadmium ion in height cadmium solution of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, motor, 2, fluid level control device, 3, temperature controller, 4, pH value controller, 5, steam
Vapor pipeline, 6, acid adding pipeline, 7, solution inlet port, 8, reactor, 9, impeller, 10, central shaft,
11, solid phase outlet, 12, speed change set, 13, material inlet, 14, zinc metal sheet clamping device, 15, row
QI KOU, 16, turbulent flow baffle plate, 17, observation port, 18, liquid discharge outlet, 19, supporting leg, 20,
Supersonic generator, 21, control system.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
The high efficiente callback automation equipment of cadmium ion in a kind of high cadmium solution, as shown in Figure 1 and Figure 2, bag
Include reactor 8, motor 1, zinc metal sheet clamping device 14, central shaft 10, impeller 9, plural super
Sonic generator 20, steam pipework 5 and several turbulent flow baffle plates 16;
The bottom of described reactor 8 is tapered, and described motor 1 is arranged on the top of described reactor 8
Middle part, it is internal that described zinc metal sheet clamping device 14 is arranged on described reactor 8;
One end of described central shaft 10 is connected with described motor 1, and the other end inserts described reactor 8
In, and near the bottom of described reactor 8;If it is not of uniform size dried layer to be distributed on described central shaft 10
Impeller 9, and the distance between adjacent two layers impeller 9 is the most equal, the leaf of the bottom of described central shaft 10
Wheel 9 is maximum, near reactor 8 conical lower portion (away from reactor conical lower portion 400~600mm), can have
Short grained zinc powder is stirred to reactor 8 top by effect ground so that it is be again fully contacted reaction with solution,
Reduce zinc powder to fall to bottom reactor 8;
Described supersonic generator 20 is arranged on the outer wall of described reactor 8 uniformly, described steam
Pipeline 5 is looped around on described reactor 8 inwall uniformly, and a termination is stretched out outside described reactor 8,
Described turbulent flow baffle plate 16 is uniformly arranged on the inwall of described reactor 8.
Described zinc metal sheet clamping device 14 is connected, on zinc metal sheet with described central shaft 10 by speed change set 12
End is placed in the middle of described zinc metal sheet clamping device, and is clamped fixing by described zinc metal sheet clamping device.
Except the impeller 9 of the bottom of described central shaft 10, other impeller 9 is respectively positioned on described zinc metal sheet clamping dress
Put in the middle of 14, and zinc metal sheet with described zinc metal sheet clamping device 14 and clamping thereof does not contacts.
One sidewall of described reactor 8 is provided with solution inlet port 7, and the position of described solution inlet port 7 is high
The position that liquid level is the highest in described reactor 8.
In described high cadmium solution, the high efficiente callback automation equipment of cadmium ion also includes acid adding pipeline 6, described
The position that the position of the import of acid adding pipeline 6 is the highest higher than liquid level in described reactor 8, and it is positioned at described
The top of solution inlet port 7;The pipeline of described acid adding pipeline 6 extends in described reactor 8.
Another sidewall of described reactor 8 is provided with air vent 15, observation port 17 and liquid discharge outlet 18,
Described observation port 17 is between described air vent 15 and described liquid discharge outlet 18, and described aerofluxus
Mouth 15 is near described reactor 8 top, and described liquid discharge outlet 18 is bottom described reactor 8.
The top of described reactor 8 is provided with material inlet 13, fluid level control device 2, temperature controller 3
And pH value controller 4, described material inlet 13 is positioned at the side of described motor 1, and near described electricity
Machine 1, described fluid level control device 2, temperature controller 3 and pH value controller 4 are positioned at described motor 1
Opposite side, and described fluid level control device 2 is positioned near described motor 1, described temperature controller 3
Between described fluid level control device 2 and described pH value controller 4.Described material inlet 13 is used for reducing
The interpolation of agent zinc powder, and the exit position that described material inlet 13 is in reactor 8 is higher than described reaction
The high liquid level (HLL) of solution in device 8.Described pH value controller 4 and automatic heat regulator 3 are at described reactor 8
Top, its pH and temperature probe stretch in reactor 8 in solution.
As it is shown on figure 3, the high efficiente callback automation equipment of cadmium ion also includes controlling in described high cadmium solution
System 21, described control system 21 is to described supersonic generator 20, solution inlet port 7, Liquid level
Device 2, temperature controller 3 and pH value controller 4 etc. are controlled.
Solid phase outlet 11 it is provided with, the bottom weldering of described reactor 8 at the bottom cone mouth of described reactor 8
It is connected to several supporting legs 19.
A kind of said apparatus is utilized to carry out the efficient recycling method of cadmium ion in high cadmium solution, including following step
Rapid:
1) zinc metal sheet is loaded zinc metal sheet clamping device 14 from reactor 8 upper end zinc metal sheet installing port, by controlling
System 21 controls zinc metal sheet clamping device 14 and automatically grips described zinc metal sheet, and zinc metal sheet installing port closes automatically
Close;
2) control system 21 automatically opens up solution inlet port 7 valve, by high cadmium solution from solution inlet port 7 note
Entering in reactor 8, fluid level control device 2 monitors liquid level in reactor 8 in real time, when high cadmium solution
Liquid level arrive container 2/3 position time, fluid level control device 2 detects and provides control signal, control
After system 21 receives signal, control solution inlet port 7 valve and be automatically switched off, stop injecting high cadmium solution,
Control system 21 starts motor 1, and motor 1 drives agitating device to be stirred high cadmium solution, in stirring
In the whipping process of device, control system 21 controls material inlet 13 valve and automatically opens up, by metering
Quantitative zinc powder is at the uniform velocity added in the solution in reactor 8 by switch, and control system 21 interval opens simultaneously
Dynamic supersonic generator 20, (frequency of sonic generator is 10~150kHz, and the sound intensity is ultrasound-enhanced
1.0~5.0w/cm2, the Vltrasonic device opening time: 0~15min, the Vltrasonic device shut-in time: 0~15min)
With under mechanical agitation so that described zinc powder and high cadmium solution are fully contacted reaction;
3), in course of reaction, the zinc powder of interpolation passes through mechanical agitation, from edge gradually toward reactor 8
Bottom sinks, and in reactor rounded bottom, the effect stirred by impeller 9, by zinc powder again by reacting
Device 8 middle turning is rolled to solution top, during zinc powder tumbling motion, reactor 8 outer secondary with
Formula of having a rest sonic oscillation effect, makes described zinc powder fully contact with high cadmium solution and reacts, until zinc powder is complete
Full response, the cadmium that reaction displacement generates precipitates under the effect of gravity and reactor wall turbulent flow baffle plate 16
To reactor 8 conical lower portion.
4), in course of reaction, the primary response in high cadmium solution is that cadmium ion is replaced with zinc powder and zinc metal sheet
, also there is side reaction in reaction, the acid in solution and zinc powder and zinc metal sheet react generation hydrogen simultaneously, and hydrogen leads to
The air vent 15 crossing reactor 8 sidewall upper enters in air, along with side reaction zinc powder, zinc metal sheet are with molten
The reaction of the acid in liquid is carried out, and the pH value of high cadmium solution gradually rises, when the pH value of high cadmium solution raises
During to 4.5, pH value controller 4 gives control system feedback signal, and control system 21 controls acid adding pipeline
6 valves automatically open up, and drip certain density acid solution, by pH value controller 4 in reactor 8
Solution acidity in display reactor 8 regulates the amount controlling to add acid solution, when molten in reactor 8 in real time
When the pH value of liquid is reduced to systemic presupposition value (between 2~3), control system 21 closes acid adding pipeline 6
Valve, stops adding acid solution;
During displacement reaction, the temperature of described high cadmium solution is maintained at 25~80 DEG C, when temperature reduces
After, temperature controller 3 feedback signal is in control system 21, and system controls 21 and automatically opens up steam pipework
5 valves, steam heats to described high cadmium solution by steam pipework 5, by temperature controller 3, control
System 21 processed automatically controls size and the opening and closing of steam pipework 5 valve, and in making reactor 8, temperature keeps
Between 25~80 DEG C.
5) in course of reaction, zinc powder adds complete, and after reaction a period of time, control system 21 controls
Speed change set 12 drive zinc metal sheet clamping device 14 at the uniform velocity rotates, and the cadmium ion in solution occurs with zinc metal sheet
Reaction, generates cadmium metal, and reaction is until concentration of cadmium ions is less than below 100mg/L in solution, it is determined that
For reaction end, system controls to close motor 1, and agitating device and zinc metal sheet clamping device 14 all stop operating.
6) after reaction terminates, control system 21 controls liquid discharge outlet 18 valve and automatically opens up, reaction
Liquid in device is discharged and during the lowest part of as little as default, and fluid level control device 2 feedback signal is in control
System 21 processed, control system 21 controls liquid discharge outlet 18 valve and is automatically switched off, meanwhile, control system
21 automatically open up solid phase outlet 11 valve, by the scoriform thing in reactor conical lower portion and a small amount of residual
Liquid discharge, and isolate cadmium metal by screen cloth, in cadmium metal loading balling press, balling press is one
Under fixed pressure, Spongy Cadmium is pressed into pie cadmium metal,.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (9)
1. the high efficiente callback automation equipment of cadmium ion in a high cadmium solution, it is characterised in that include
Reactor, motor, zinc metal sheet clamping device, agitating device, automatic control unit, plural ultrasonic
Wave producer, steam pipework and several turbulent flow baffle plates;
The bottom of described reactor is tapered, and described motor is arranged on the pars intermedia at the top of described reactor
Position, described zinc metal sheet clamping device is arranged on described inside reactor;
Described agitating device is arranged in described reactor, and is connected with described motor;Described automatic control
Assembly processed is positioned at the top of described reactor, and is connected with described reactor;
Described supersonic generator is arranged on the outer wall of described reactor uniformly, and described steam pipework is equal
Even is looped around on described reactor wall, and a termination is stretched out outside described reactor, described turbulent flow baffle plate
Uniformly it is arranged on the inwall of described reactor;
Described agitating device includes that central shaft and impeller, one end of described central shaft are connected with described motor
Connecing, the other end inserts in described reactor, and near the bottom of described reactor;Divide on described central shaft
If the distance being furnished with between the impeller that dried layer is not of uniform size, and adjacent two layers impeller is the most equal, described center
The impeller of the bottom of axle is maximum, near reactor conical lower portion;Described zinc metal sheet clamping device passes through speed change set
Being connected with described central shaft, zinc metal sheet upper end is placed in the middle of described zinc metal sheet clamping device, and by described zinc
Holder for x-ray film is clamped fixing.
The high efficiente callback automation equipment of cadmium ion in high cadmium solution the most according to claim 1,
It is characterized in that, except the impeller of the bottom of described central shaft, other impeller is respectively positioned on described zinc metal sheet folder
Hold in the middle of device, and zinc metal sheet with described zinc metal sheet clamping device and clamping thereof does not contacts.
3. according to the high efficiente callback of cadmium ion in the high cadmium solution described in any one of claim 1 to 2 certainly
Dynamic gasifying device, it is characterised in that the frequency of described sonic generator is 10~150kHz, and the sound intensity is
1.0~5.0w/cm2, the Vltrasonic device opening time: 0~15min, the Vltrasonic device shut-in time: 0~
15min。
4. according to the high efficiente callback of cadmium ion in the high cadmium solution described in any one of claim 1 to 2 certainly
Dynamic gasifying device a, it is characterised in that sidewall of described reactor is provided with acid adding pipeline and solution inlet port,
The position that the position of the import of described acid adding pipeline is the highest higher than liquid level in described reactor, and it is positioned at described
The top of solution inlet port;The pipeline of described acid adding pipeline extends in described reactor;Described solution inlet port
The position the highest higher than liquid level in described reactor, position.
The high efficiente callback automation equipment of cadmium ion in high cadmium solution the most according to claim 4,
It is characterized in that, another sidewall of described reactor is provided with air vent, observation port and liquid discharge outlet,
Described observation port is between described air vent and described liquid discharge outlet, and described air vent is near described
Reactor head, described liquid discharge outlet is near described reactor bottom;The top of described reactor is provided with
Material inlet, described material inlet is positioned at the side of described motor, and near described motor;Described reaction
Being provided with solid phase outlet at the bottom cone mouth of device, the bottom welding of described reactor has several supporting legs.
The high efficiente callback automation equipment of cadmium ion in high cadmium solution the most according to claim 5,
It is characterized in that, described automatic control unit includes fluid level control device, temperature controller and pH value control
Device processed, described fluid level control device, temperature controller and pH value controller are positioned at another of described motor
Side, and described fluid level control device is positioned at described Liquid level near described motor, described temperature controller
Between device and described pH value controller.
The high efficiente callback automation equipment of cadmium ion in high cadmium solution the most according to claim 6,
It is characterized in that, in described high cadmium solution, the high efficiente callback automation equipment of cadmium ion also includes controlling system
System, described control system is to described supersonic generator, solution inlet port, fluid level control device, temperature control
Device processed and pH value controller are controlled.
8. the efficient recycling method of cadmium ion in a high cadmium solution, it is characterised in that include following step
Rapid:
1) being loaded in zinc metal sheet clamping device by reducing agent zinc metal sheet, air vent remains opening, high
Cadmium solution is entered in reactor by solution inlet port;
2) during in described high cadmium solution injecting reactor, when in reactor, solution exceedes reactor
During interior 1/2 volume, driven by motor central shaft at the uniform velocity stirs, and motor drives zinc metal sheet to press from both sides by speed change set
Holding device and zinc metal sheet rotates, meanwhile, zinc powder adds in reactor by material inlet, when high cadmium is molten
When the liquid level of liquid arrives 2/3 position of reaction vessel, fluid level control device feeds back signal to control system,
Control system controls solution inlet port valve and is automatically switched off, and stops injecting high cadmium solution, at central shaft and impeller
Stirring under, control system interval starts supersonic generator, makes described reducing agent zinc powder and zinc metal sheet with high
Cadmium solution is fully contacted reaction, and the cadmium metal making reaction generate is made in the stirring of ultrasonic strengthening and machinery
From zinc powder or the sur-face peeling of zinc metal sheet under with;
3) during zinc powder, zinc metal sheet and cadmium ion generation displacement reaction, the acid solution in high cadmium solution with
Zinc powder and zinc metal sheet react generation hydrogen, discharge hydrogen by described air vent, along with zinc powder, zinc metal sheet
Reaction with acid solution is carried out, and in reactor, the pH value of cadmium-containing solution raises, as the pH of solution in reactor
When value is increased to 4.5, pH value controller is to control system feedback signal, and control system controls to open acid adding
Pipe valve, the acidity shown in real time in reaction vessel by pH value controller controls acid adding amount with real-time,
In keeping reactor, pH stable is between 2~3;
4), in course of reaction, in reactor, zinc powder addition is less than the required theoretical amount of reaction, and zinc powder is uniform
In addition reactor in solution, under impeller stirring action, described zinc powder upwards rolls and high in reactor
Cadmium solution is fully contacted reaction, and the cadmium displaced is deposited on reactor conical lower portion under gravity, instead
After should terminating, the liquid discharge outlet of reactor is opened, and is drained by the liquid in reactor, then turns on anti-
Answer the solid phase outlet bottom device, the scoriform thing in reactor and residual liquid are discharged, is divided by screen cloth
Separate out spongy metal cadmium, via balling press, Spongy Cadmium be pressed into pie cadmium metal group,.
The efficient recycling method of cadmium ion in high cadmium solution the most according to claim 8, its feature exists
In, in step 2) in, the pH of described high cadmium solution is 2~3;
In step 3) in, during displacement reaction, the temperature of described high cadmium solution is maintained at 25~80 DEG C,
After temperature reduces, temperature controller feedback signal is in control system, and system controls to automatically open up steam pipe
Road valve, steam heats to described high cadmium solution by steam pipework, by temperature controller, controls system
System automatically controls size and the opening and closing of steam pipework valve, make reactor temperature be maintained at 25~80 DEG C it
Between.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510138365.5A CN104805289B (en) | 2015-03-26 | 2015-03-26 | The high efficiente callback automation equipment of cadmium ion and recovery method in a kind of high cadmium solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510138365.5A CN104805289B (en) | 2015-03-26 | 2015-03-26 | The high efficiente callback automation equipment of cadmium ion and recovery method in a kind of high cadmium solution |
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