CN116287700A - Extraction box mixing chamber driven by stacked stirring device and manufacturing method thereof - Google Patents

Extraction box mixing chamber driven by stacked stirring device and manufacturing method thereof Download PDF

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Publication number
CN116287700A
CN116287700A CN202111563117.7A CN202111563117A CN116287700A CN 116287700 A CN116287700 A CN 116287700A CN 202111563117 A CN202111563117 A CN 202111563117A CN 116287700 A CN116287700 A CN 116287700A
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mixing chamber
stirring
extraction
stirring device
extraction box
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Inventor
孙翌钊
王清宏
刘芙蓉
耿文杰
俞圣杰
金佩程
张翔
徐锋
姚纪业
许铮
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Hangzhou Zhonghuan Chemical Equipments Co ltd
Hangzhou Mcc Nonferrous Technology Co ltd
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Hangzhou Zhonghuan Chemical Equipments Co ltd
Hangzhou Mcc Nonferrous Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/02—Apparatus therefor
    • 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

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  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention relates to the technical field of extraction box mixing chambers, and particularly discloses an extraction box mixing chamber driven by a laminated stirring device and a manufacturing method thereof. The vacuum area is formed when the horn mouth between the turbine blades rotates clockwise, the organic phase and the water phase are sucked into the mixing chamber, the organic phase and the water phase are fully mixed by means of the dispersion action of the dispersion type propelling paddles, then the organic phase and the water phase are propelled upwards layer by layer, finally the organic phase and the water phase flow out of the mixing chamber through the overflow port, the mixing efficiency of the mixing clarifying tank is improved by 30% compared with that of a traditional mixing clarifying tank, and the problems that the space of a submerged chamber is narrow and the overhauling operation is inconvenient are solved.

Description

Extraction box mixing chamber driven by stacked stirring device and manufacturing method thereof
Technical Field
The invention relates to the technical field of extraction box mixing chambers, in particular to an extraction box mixing chamber driven by a laminated stirring device and a manufacturing method thereof.
Background
The mixing and clarifying extraction box is extraction equipment commonly used in the hydrometallurgy industry. The mixing chamber of the traditional mixing clarification type extraction box consists of a submerged chamber positioned at the bottom and a mixing chamber positioned at the upper part, and a transmission device and a stirring device are fixedly arranged at the top of the extraction box through a fixed steel frame. The organic phase and water phase pipeline inlets of the extraction box are both arranged in the submerged chamber, and the pipeline is commonly used as a PVC pipeline with the diameter of DN 50. The main function of the extraction box is to make the metal ions in the solution and H on the extractant pass through countercurrent contact of the organic phase (extractant) and the aqueous phase (solution containing metal ions) + Or Na (or) + Exchange is carried out, and metal ions are washed into the solution in the subsequent back extraction link. In the whole reaction process, a stirring device is important, so that not only is the full mixing of an organic phase and a water phase realized, but also the mixed phase is pushed to enter a clarification chamber through an overflow port.
The traditional mixing chamber of the extraction box has narrow space of the submerged chamber, and often has the precipitation of calcium sulfate, magnesium sulfate and the like in the extraction process, and the precipitation is accumulated in the submerged chamber to easily cause the blockage of the submerged chamber, so that the production is forced to stop. Because the space of the submerged chamber is narrow, the sediment is not easy to clean, and the maintenance is very inconvenient. And the traditional extraction box stirring device has only one stirring paddle, which is unfavorable for the full mixing of the organic phase and the water phase, and has low extraction efficiency. In case of failure of the transmission or stirring device, which would lead to spillage of the solution in the mixing chamber, the transmission or stirring device must be shut down and replaced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an extraction tank mixing chamber driven by a laminated stirring device and a manufacturing method thereof, which can effectively solve the problems of narrow space of a submerged chamber of the extraction tank mixing chamber, inconvenient maintenance operation, insufficient mixing of an organic phase and a water phase in the extraction tank mixing chamber and low extraction efficiency.
In order to solve the technical problems, the following technical scheme is adopted:
the utility model provides a lamination formula agitating unit driven extraction case mixing chamber, includes extraction case mixing chamber, extraction case mixing chamber's top is equipped with transmission, transmission's lower extreme swing joint has the stirring center pin that stretches into extraction case mixing chamber, install detachable wheel hub on the stirring center pin, a plurality of dispersion propulsion paddles that the equipartition was arranged about fixed mounting on the wheel hub set up, detachable turbine type paddle is installed to the lower extreme of stirring center pin.
Further, the section of the turbine blade is an inverted trapezoid cylinder which is symmetrically distributed, and a plurality of horn mouths with small upper parts and large lower parts are formed among the turbine blades.
Further, the distributed propulsion paddles comprise a left paddle and a right paddle, and the left paddle and the right paddle are fixedly mounted on the hub at 180 degrees.
Further, the upper edge of the left blade and the upper edge of the right blade form included angles of 20-45 degrees with the cover plate respectively, the lower edge of the left blade and the lower edge of the right blade are parallel to the cover plate, a cylindrical cavity is formed between one third of the inner edge of the left blade and one third of the lower edge and one third of the inner edge of the right blade and one third of the lower edge, and the outer edge of the left blade and the outer edge of the right blade are parallel to the stirring central shaft.
Further, the stirring central shaft is fixed with the top of the dispersion type propulsion propeller through a fixed disc and a locking device.
Further, a cover plate with a central hole is arranged at the top of the extraction box mixing chamber.
Further, the lower end of the transmission device is connected with the stirring central shaft through a central hole.
Further, the bottom of the extraction box mixing chamber is provided with an organic phase inlet and a water phase inlet.
Further, an overflow port is arranged at the upper part of the right side of the mixing chamber of the extraction box.
The manufacturing method of the extraction box mixing chamber driven by the laminated stirring device is characterized by comprising the following steps of:
the first step, calculating the size of a required mixing chamber of an extraction box according to the phase ratio and flow ratio of the organic phase and the water phase and the mixing flux of the organic phase and the water phase;
secondly, calculating the pitch diameters of turbine blades and distributed propulsion blades: calculating the diameters of turbine blades and distributed propulsion blades according to the diameter (0.8-0.85) of the mixing chamber of the extraction box;
thirdly, setting the ratio of the length of the stirring central shaft to the diameter of the mixing chamber of the extraction box to be (1.3-2.0), and calculating the length of the stirring central shaft;
fourthly, manufacturing a bottom plate and a side plate of a mixing chamber of the extraction box according to the design sizes of the first step to the third step, wherein an organic phase inlet and a water phase inlet are fixedly arranged on the bottom plate;
fifthly, manufacturing a laminated stirring device according to the design sizes of the first step to the third step;
sixthly, fixedly mounting a rotating device at the upper part of a mixing chamber of the extraction box, and mounting a laminated stirring device;
and seventhly, installing a cover plate to finish the manufacture of the extraction tank mixing chamber driven by the laminated stirring device.
Due to the adoption of the technical scheme, the method has the following beneficial effects:
the invention relates to an extraction box mixing chamber driven by a laminated stirring device and a manufacturing method thereof, wherein the extraction box mixing chamber has a reasonable and compact structure, forms a vacuum area when rotating clockwise through a horn mouth between turbine blades, sucks organic phases and water phases into the mixing chamber, fully mixes the organic phases and the water phases by means of the dispersion action of a dispersion type propulsion paddle, and finally flows out of the mixing chamber through an overflow port, and has the characteristics of high efficiency, stability, reliability and low maintenance cost. The mixing efficiency of the mixing clarifying box is improved by 30 percent compared with that of the traditional mixing clarifying box, and the problems that the space of a submerged chamber is narrow and the overhaul operation is inconvenient are solved.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the internal structure of a mixing chamber of an extraction tank driven by a laminated stirring device and a manufacturing method thereof;
FIG. 2 is a schematic diagram of the structure of the invention in which the mixing chamber of the extraction tank and the settling chamber of the extraction tank are connected together.
In the figure: 1 is an extraction box mixing chamber, 2 is a stirring central shaft, 3 is a dispersing type propelling blade, 4 is a hub, 5 is a turbine blade, 6 is an aqueous phase inlet, 7 is an organic phase inlet, 8 is a fixed disk, 9 is a locking device, 10 is an overflow port, 11 is a cover plate, 12 is a transmission device, and 13 is an extraction box clarifying chamber.
Detailed Description
The present invention will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Example 1
As shown in fig. 1, an extraction tank mixing chamber driven by a laminated stirring device and a manufacturing method thereof comprise an extraction tank mixing chamber 1, wherein a cover plate 11 with a central hole is arranged at the top of the extraction tank mixing chamber 1, an organic phase inlet 7 and a water phase inlet 6 are arranged at the bottom of the extraction tank mixing chamber 1, and an overflow port 10 is arranged at the upper right side of the extraction tank mixing chamber 1.
As a further explanation of this embodiment, the top of the mixing chamber 1 of the extraction tank is provided with a transmission device 12, the lower end of the transmission device 12 is movably connected with a stirring central shaft 2 extending into the mixing chamber 1 of the extraction tank through a central hole, a detachable hub 4 is installed on the stirring central shaft 2, a plurality of dispersed propulsion paddles 3 are fixedly installed on the hub 4 and are uniformly distributed and arranged up and down, and a detachable turbine blade 5 is installed at the lower end of the stirring central shaft 2.
As a further explanation of the present embodiment, the turbine blades 5 are cylindrical bodies with inverted trapezoids in cross section and symmetrically distributed, and a flare with a small upper part and a large lower part is formed between the plurality of turbine blades 5. The extraction box mixing chamber 1 forms a vacuum area when rotating clockwise through a horn mouth between turbine blades 5, sucks the organic phase and the water phase into the mixing chamber, fully mixes the organic phase and the water phase by the dispersion action of the dispersion type propelling paddles 3, then propels upwards layer by layer, and finally flows out of the extraction box mixing chamber 1 through an overflow port 10.
As a further illustration of this embodiment, the distributed propulsion propeller 3 comprises a left blade and a right blade, which are fixedly mounted on the hub 4 at 180 °. The left blades and the right blades are symmetrically distributed at 180 degrees, so that after the organic phase and the water phase are fully mixed, the centrifugal force caused by the rotation of the blades is utilized to diffuse the mixture towards the inner wall of the mixing chamber 1 of the extraction box.
As a further explanation of this embodiment, the upper edge of the left blade and the upper edge of the right blade form an included angle of 20 ° to 45 ° with the cover plate 11, the lower edge of the left blade and the lower edge of the right blade are parallel to the cover plate 11, a third of the inner edge of the left blade and a third of the lower edge and a third of the inner edge of the right blade and a third of the lower edge form a cylindrical cavity, and the outer edges of the left blade and the right blade are parallel to the stirring central shaft 2.
As a further illustration of the present embodiment, the stirring center shaft 2 is fixed with the top of the decentralized propulsion propeller 3 by means of a fixed disk 8 and a locking device 9. The locking device 9 is a screw thread or a buckle, and the screw thread connection or the buckle connection is convenient to detach, so that the overhaul operation when faults occur is facilitated.
As a further explanation of the present embodiment, the transmission device 12 may be movably connected to the stirring central shaft 2 by a coupling. The transmission device 12 comprises a motor and a speed reducer, and the coupler is movably connected with the stirring central shaft 2.
As a further explanation of the present embodiment, as shown in fig. 2, the extraction tank mixing chamber 1 is integrated with the extraction tank clarifying chamber 13, the middle is partitioned by a baffle, and the upper part is communicated with the overflow port 10.
Example 2
The manufacturing method of the extraction box mixing chamber driven by the laminated stirring device is characterized by comprising the following steps of:
the first step, calculating the size of a required mixing chamber of an extraction box according to the phase ratio and flow ratio of the organic phase and the water phase and the mixing flux of the organic phase and the water phase;
in particular, in the design of the mixing chamber of the extraction box, the flow rate of the extraction liquid is 0.25m 3 And/h, under the condition that the extraction ratio O/A=1:1, the single-stage two-phase solution of the extraction system is mixed for 4-6 min.
Total flux calculation of the mixing chamber of the extraction box: qtotal=qhas +qwater=0.25+0.25=0.5 m 3 /h
Total flux of mixing chamber, m 3 /h；
Q is-flow of organic phase, m 3 /h；
Q Water-flow of aqueous phase, m 3 /h；
Mixing chamber effective volume calculation:
Figure BDA0003421372180000051
take 0.046m 3
In which V is the effective volume of the mixing chamber, m 3 ，
t-mixing residence time, min.
The mixing chamber adopts a cylindrical shape, and the height-diameter ratio is h, wherein d=2.5-5.5: 1, mixing chamber diameter d=0.260 m mixing chamber height h=0.780 m is calculated.
Secondly, calculating the pitch diameters of turbine blades and distributed propulsion blades: calculating the diameters of turbine blades and distributed propulsion blades according to the diameter (0.8-0.85) of the mixing chamber of the extraction box;
thirdly, setting the ratio of the length of the stirring central shaft to the diameter of the mixing chamber of the extraction box to be (1.3-2.0), and calculating the length of the stirring central shaft;
fourthly, manufacturing a bottom plate and a side plate of a mixing chamber of the extraction box according to the design sizes of the first step to the third step, wherein an organic phase inlet and a water phase inlet are fixedly arranged on the bottom plate;
fifthly, manufacturing a laminated stirring device according to the design sizes of the first step to the third step;
sixthly, fixedly mounting a rotating device at the upper part of a mixing chamber of the extraction box, and mounting a laminated stirring device;
specifically, in the design of the stacked stirring device, the stirring turbine diameter is: d=0.8d=0.8×0.260=0.208 m.
Wherein D is turbine diameter, m;
d-mixing chamber diameter, m.
Blade axial height: b=0.18d=0.18×0.208=0.037 m.
Wherein B is the axial height, m;
radial length of blade: l=0.25d=0.25×0.208=0.052 m.
Wherein L is the radial length of the blade, and m.
According to the principle that the end speed of stirring paddles of an extraction system is 5.0-8.0m/s, 6.5m/s is taken according to the principle that the end speeds are equal, and the rotating speed of the stirring paddles is as follows:
Figure BDA0003421372180000061
and seventhly, installing a cover plate to finish the manufacture of the extraction tank mixing chamber driven by the laminated stirring device.
Specifically, in the calculation of the stirring motor power, the stirring required power is: pneed=ζd 5 N 3 ρm.10 -3
P in the formula Is required to The power required for stirring (power not including the driving mechanism)Loss), kW;
ζ -stirring resistance coefficient, typically a resistance coefficient of 2.6 for a turbine stirrer;
d, turbine diameter, m;
ρm-average density of two phases kg/m 3 ；
So pneeds=2.6× (0.208) 5× (579++60) 3×956×10-3=0.22 kW
The motor power that needs to be selected:
Figure BDA0003421372180000071
p motor in formula-motor power, kW;
a-the stirrer factor, is 3.87 times the ratio of the thickness (B) to the diameter (D) of the impeller, i.e
Figure BDA0003421372180000072
0.8-the motor efficiency is 80%.
A=3.78× (0.032/0.18) =0.85
P motor= (0.85 ≡2.6+1) ×0.16 ≡0.8=0.35 kW.
The standard motor rated output power was chosen to be 0.55kW, taking into account the power losses during operation.
According to the invention, a vacuum area is formed when the horn mouth between the turbine blades rotates clockwise, the organic phase and the water phase are sucked into the mixing chamber, the organic phase and the water phase are fully mixed by means of the dispersion action of the dispersion type propulsion paddles, and then the organic phase and the water phase are propelled upwards layer by layer and finally flow out of the mixing chamber through the overflow port, so that the mixing efficiency is improved by 30% compared with that of the traditional mixing clarifying tank, and the problems of narrow space and inconvenience in maintenance operation of the submerged chamber are solved.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the substantially same technical problems and achieve the substantially same technical effects are encompassed within the scope of the present invention.

Claims (10)

1. The utility model provides a lamination formula agitating unit driven extraction case mixing chamber, includes extraction case mixing chamber, its characterized in that: the top of extraction case mixing chamber is equipped with transmission, transmission's lower extreme swing joint has the stirring center pin that stretches into extraction case mixing chamber, install detachable wheel hub on the stirring center pin, a plurality of dispersion propulsion paddles that the upper and lower equipartition was arranged and is set up are fixed mounting on the wheel hub, detachable turbine type paddle is installed to the lower extreme of stirring center pin.
2. The stacked stirring device driven extraction tank mixing chamber of claim 1, wherein: the section of the turbine type blade is an inverted trapezoid cylinder which is symmetrically distributed, and a plurality of horn mouths with small upper parts and large lower parts are formed among the turbine type blades.
3. The stacked stirring device driven extraction tank mixing chamber of claim 1, wherein: the distributed propulsion propeller comprises a left blade and a right blade, wherein the left blade and the right blade are fixedly installed on the hub at 180 degrees.
4. A stacked stirring device driven extraction tank mixing chamber as claimed in claim 3 wherein: the upper edge of the left blade and the upper edge of the right blade form included angles of 20-45 degrees with the cover plate respectively, the lower edge of the left blade and the lower edge of the right blade are parallel to the cover plate, a third of the inner edge of the left blade and a third of the lower edge of the left blade are parallel to the stirring center shaft, a cylindrical cavity is formed between the third of the inner edge of the right blade and the third of the lower edge of the left blade, and the outer edge of the left blade and the outer edge of the right blade are parallel to the stirring center shaft.
5. The stacked stirring device driven extraction tank mixing chamber of claim 3 or 4, wherein: the stirring central shaft is fixed with the top of the distributed propulsion propeller through a fixed disc and a locking device.
6. The stacked stirring device driven extraction tank mixing chamber of claim 1 or 2 or 3 or 4, wherein: the top of the extraction box mixing chamber is provided with a cover plate with a central hole.
7. The stacked stirring device driven extraction tank mixing chamber of claim 6, wherein: the lower end of the transmission device is connected with the stirring central shaft through a central hole.
8. The stacked stirring device driven extraction tank mixing chamber of claim 1 or 2 or 3 or 4, wherein: the bottom of the extraction box mixing chamber is provided with an organic phase inlet and a water phase inlet.
9. The stacked stirring device driven extraction tank mixing chamber of claim 1 or 2 or 3 or 4, wherein: and an overflow port is arranged at the upper part of the right side of the mixing chamber of the extraction box.
10. The manufacturing method of the extraction box mixing chamber driven by the laminated stirring device is characterized by comprising the following steps of:
the first step, calculating the size of a required mixing chamber of an extraction box according to the phase ratio and flow ratio of the organic phase and the water phase and the mixing flux of the organic phase and the water phase;
secondly, calculating the pitch diameters of turbine blades and distributed propulsion blades: calculating the diameters of turbine blades and distributed propulsion blades according to the diameter (0.8-0.85) of the mixing chamber of the extraction box;
thirdly, setting the ratio of the length of the stirring central shaft to the diameter of the mixing chamber of the extraction box to be (1.3-2.0), and calculating the length of the stirring central shaft;
fourthly, manufacturing a bottom plate and a side plate of a mixing chamber of the extraction box according to the design sizes of the first step to the third step, wherein an organic phase inlet and a water phase inlet are fixedly arranged on the bottom plate;
fifthly, manufacturing a laminated stirring device according to the design sizes of the first step to the third step;
sixthly, fixedly mounting a rotating device at the upper part of a mixing chamber of the extraction box, and mounting a laminated stirring device;
and seventhly, installing a cover plate to finish the manufacture of the extraction tank mixing chamber driven by the laminated stirring device.
CN202111563117.7A 2021-12-20 2021-12-20 Extraction box mixing chamber driven by stacked stirring device and manufacturing method thereof Pending CN116287700A (en)

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Application Number Priority Date Filing Date Title
CN202111563117.7A CN116287700A (en) 2021-12-20 2021-12-20 Extraction box mixing chamber driven by stacked stirring device and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111563117.7A CN116287700A (en) 2021-12-20 2021-12-20 Extraction box mixing chamber driven by stacked stirring device and manufacturing method thereof

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CN116287700A true CN116287700A (en) 2023-06-23

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