CN109574054A - Strontium carbonate production method - Google Patents
Strontium carbonate production method Download PDFInfo
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- CN109574054A CN109574054A CN201710911156.9A CN201710911156A CN109574054A CN 109574054 A CN109574054 A CN 109574054A CN 201710911156 A CN201710911156 A CN 201710911156A CN 109574054 A CN109574054 A CN 109574054A
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- leaching
- strontium carbonate
- strontium
- filter material
- roller
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/186—Strontium or barium carbonate
- C01F11/187—Strontium carbonate
Abstract
The invention discloses a kind of strontium carbonate production methods, comprising the following steps: S100: by celestine and raw coal after crusher crushes, being sent into feed bin；S200: the raw material in feed bin is sent into rotary kiln by oscillation dispenser (1) and conveying device (2)；S300: by ball mill by crude strontium sulfide ball milling at powder；S400: leaching obtains the leaching liquid containing strontium ion；S500: purification；S600: chemical combination generates strontium carbonate precipitation and vulcanized sodium mixture；S700: it washed, be beaten, dried, crushed to resulting sodium carbonate is separated by filtration, obtain strontium carbonate particle；S800: cooling, packaging obtains final strontium carbonate product.Present invention improves the qualities of strontium carbonate product, improve production efficiency.
Description
Technical field
The invention belongs to chemical field, in particular to a kind of strontium carbonate production method.
Background technique
Strontium carbonate is a kind of important inorganic chemical product, is mainly used for fluorescent glass, electronic ceramics, magnetic oxysome industry and
High-tech area, as the fast development and strontium carbonate of electronics industry are in the extensive use of high-tech area, the country is to strontium carbonate
Demand also increasing significantly, country's strontium carbonate production equipment falls behind at present, and purity is not high, and production efficiency is low, low output, domestic
Production is not able to satisfy user's needs still, needs to be further improved strontium carbonate production method and equipment.
Summary of the invention
In view of the drawbacks of the prior art, the present invention provides a kind of strontium carbonate production methods.
A kind of strontium carbonate production method, comprising the following steps: S100: it by celestine and raw coal after crusher crushes, send
Enter feed bin；S200: the raw material in feed bin is sent into rotary kiln, the shape after rotary kiln baking by oscillation dispenser 1 and conveying device 2
At crude strontium sulfide；The oscillation dispenser 1 includes the hopper 1.2 in dustpan shape, and hopper 1.2 is anteriorly gradually narrowed from rear portion
To form discharge port, conveying device 2 is located at below discharge port, and the rear portion of hopper 1.2 is by two 1.1 Suspending fixations of spring, out
Material mouth is by two telescopic 1.3 Suspending fixations of hydraulic stem, and in the lower section of hopper 1.2, there are two abut with hopper 1.2 for setting
Eccentric wheel 1.4, eccentric wheel 1.4 is located at the rear portion of hopper 1.2, and eccentric wheel 1.4 is fixed in first axle 1.7, first axle 1.7
Both ends can be supported by the way that bearing block is fixed, and the second axis 1.6 is arranged in a mutually vertical manner with first axle 1.7, first axle 1.7 and the second axis
1.6 are connected by worm gear structure 1.8, and worm gear structure 1.8 includes the worm gear 1.82 that is fixed in first axle 1.7 and solid
Worm screw 1.81 on the second axis 1.6, worm gear 1.82 are engaged with worm screw 1.81；Conveying device 2 includes support roller 2.3, erosion control
Mechanism, conveyer belt 2.2 and dust excluder 2.1 are hit, support roller 2.3 is used for bearing conveying belt 2.2, and protecting against shock mechanism is by multiple intensive rows
The protecting against shock roller 2.4 of cloth forms, and the spacing between protecting against shock roller 2.4 is less than the spacing between support roller 2.3, and dust excluder 2.1
In the lower section of conveyer belt 2.2, dust excluder 2.2 is in infundibulate, and upper part has biggish opening portion 2.11, and lower part has lesser
The end of dust collecting opening 2.12, support roller 2.3 is located on opening portion 2.11；S300: by ball mill by crude strontium sulfide ball milling
At powder；S400: leaching obtains the leaching liquid containing strontium ion；Leaching is completed by leaching device 4, and leaching device 4 includes outer groove
4.1 be located at the leaching can 4.2 that can hang out in outer groove 4.1, the tank bottom of leaching can 4.2 is provided with openable bottom cover 4.24；
S500: purification removes the impurity in leaching liquid；S600: sodium carbonate liquor is added, chemical combination generates strontium carbonate precipitation and vulcanized sodium is mixed
Object is closed, is separated through plate-frame filtering；S700: it washed, be beaten, dried, crushed to resulting sodium carbonate is separated by filtration, obtain carbon
Sour strontium particle；S800: cooling device 5 cools down strontium carbonate particle, and packaging obtains final strontium carbonate product；Cooling dress
Setting 5 includes feed inlet 5.3, tower body 5.5, discharge port 5.6 and hollow shaft 5.2, and feed inlet 5.3 passes through shoulder 5.4 and tower body
5.5 are connected, and multiple gas vents are offered on shoulder 5.4, and the lower end of tower body 5.5 gradually narrows and forms the discharge port 5.6, shaft
5.2 are located in tower body 5.5, and shaft 5.2 is pierced by from feed inlet 5.3, are connected with the driving motor 5.1 of top, the bottom end of shaft 5.2
It is provided with multiple arms 5.8, arm 5.8 is also hollow structure, and is communicated inside shaft 5.2, and multiple directions are provided on arm 5.8
The venthole 5.7 of lower section, is fixed with a disk 5.9 at the feed inlet 5.3 in shaft 5.2, and disk 5.9 and arm 5.8 can be with
Shaft 5.2 rotates together.
The beneficial effects of the present invention are: the present invention produces strontium carbonate using celestine carbon reduction and carbonization method, abundant raw material is raw
It produces at low cost, the technological means except the impurity such as iron, calcium, barium, magnesium is used in production, effectively reduces impurity in strontium carbonate product
Content improves product quality；A variety of sophisticated equipments are used in production, by vibrating the cooperation of dispenser and conveying device,
So that the conveying of raw material is more uniform, steady, the conveying capacity of raw material can be controlled accurately, can also prevent dust and impact, ball milling
Machine is at low cost, is hardly damaged, high production efficiency, and leaching device adds the interior leaching jar structure that can be hung out using outer groove, increases filter
The service life of material, the discharge that waste residue can be convenient, cooling device can rapidly and efficiently cool down strontium carbonate particle.It arranges above
That applies takes, and improves the quality of strontium carbonate, improves production efficiency, increases yield.
Detailed description of the invention
Fig. 1 is the flow chart of production method；
Fig. 2 is the overlooking structure diagram for vibrating dispenser；
Fig. 3 is the schematic view of the front view for vibrating dispenser；
Fig. 4 is the structural schematic diagram of driving mechanism；
Fig. 5 is the structural schematic diagram of worm and gear；
Fig. 6 is the structural schematic diagram of conveying device；
Fig. 7 is the structural schematic diagram of protecting against shock roller；
Fig. 8 is the structural schematic diagram of ball mill；
Fig. 9 is the structural schematic diagram of helical feed；
The structural schematic diagram of Figure 10 leaching device；
Figure 11 is the first structure diagram of bottom cover；
Figure 12 is the second structural schematic diagram of bottom cover；
Figure 13 is the structural schematic diagram of cooling device.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail, be more clear above and other purpose of the invention, feature and advantage will.Complete
Identical appended drawing reference indicates identical part in portion's attached drawing.Not deliberately attached drawing drawn to scale, it is preferred that emphasis is show this hair
Bright purport.
Referring to Fig. 1, strontium carbonate production method of the invention includes the following steps.
S100: by celestine and raw coal after crusher crushes, it is sent into feed bin.
China's celestine (strontium sulfate) is resourceful, and proved reserves account for about the 76% of world's gross reserves.The present invention uses day
Green stone carbon reduction and carbonization method produces strontium carbonate, after celestine and raw coal are mixed according to a certain percentage, crushes, is sent into feed bin.
S200: the raw material in feed bin is sent into rotary kiln by oscillation dispenser 1 and conveying device 2, after rotary kiln baking
Form crude strontium sulfide, content about 65-75%.
Raw material in feed bin is sent into rotary kiln by oscillation dispenser 1 and conveying device 2, at high temperature through rotary kiln baking
After form crude strontium sulfide, chemical equation is as follows:
SrSO4+2C→SrS+2CO2
SrSO4+4C→SrS+4CO
SrSO4+4CO→SrS+4CO2
Oscillation dispenser 1 is described in detail below with reference to Fig. 2 to Fig. 5.Domestic feed oscillator structure used at present
Complexity, feed is uneven, and delivery rate is not easy to adjust.Oscillation dispenser 1 of the invention includes the hopper for being substantially in dustpan shape
1.2, hopper 1.2 is anteriorly gradually narrowed from rear portion to form discharge port, and conveying device 2 is located at below discharge port, hopper 1.2
Rear portion is by two 1.1 Suspending fixations of spring, and discharge port is by two telescopic 1.3 Suspending fixations of hydraulic stem, in hopper 1.2
Lower section setting there are two the eccentric wheels 1.4 that abut with hopper 1.2, in order to reach better vibrating effect, it is preferred that eccentric wheel
1.4 are located at the rear portion of hopper 1.2, and eccentric wheel 1.4 is fixed in first axle 1.7, and the both ends of first axle 1.7 can pass through bearing block
Fixed support, the second axis 1.6 are arranged in a mutually vertical manner with first axle 1.7, and first axle 1.7 and the second axis 1.6 pass through worm and gear knot
Structure 1.8 is connected, and worm gear structure 1.8 includes the worm gear 1.82 being fixed in first axle 1.7 and is fixed on the second axis 1.6
Worm screw 1.81, worm gear 1.82 are engaged with worm screw 1.81.
After raw material falls into hopper 1.2 from feed bin, start vibrating motor 1.5, drive of second axis 1.6 in vibrating motor 1.5
Under be rotated in a first direction (in Fig. 4 shown in arrow), by worm gear structure 1.8 by the translating rotation of first direction be first
The rotation of axis 1.7 in a second direction, the rotation of first axle 1.7 is further driven to two eccentric wheels 1.4 and rotates, due to hopper
1.2 abut with eccentric wheel 1.4, and the rotation of eccentric wheel 1.4 will drive the up-down vibration of hopper 1.2, can by worm gear structure 1.8
To drive multiple eccentric wheels 1.4 positioned at 1.2 different parts of hopper to rotate by a vibrating motor 1.5, so that hopper
The vibration of 1.2 entirety is more steady, is fed more uniform.Spring 1.1 plays cushioning effect, by adjusting discharge outlet hydraulic stem
1.3 length, the gradient of adjustable hopper 1.2, the speed that the bigger raw material of gradient falls is faster, can easily adjust in this way
Save delivery rate.
Refering to Fig. 2, Fig. 6 and Fig. 7, conveying device 2 includes support roller 2.3, protecting against shock mechanism, conveyer belt 2.2 and dust excluder
2.1, support roller 2.3 is used for bearing conveying belt 2.2, and protecting against shock mechanism is made of multiple densely arranged protecting against shock rollers 2.4, i.e., anti-
Spacing between impact roll 2.4 is less than the spacing between support roller 2.3.Dust excluder 2.1 is located at the lower section of conveyer belt 2.2, dust-proof
Device 2.2 is substantially in infundibulate, and upper part has biggish opening portion 2.11, and lower part has lesser dust collecting opening 2.12, support roller
2.3 end is located on opening portion 2.11.Driving wheel 2.5 is set in one end of conveyer belt 2.2, driven wheel is arranged in the other end
2.6, rotation is driven by motor in driving wheel 2.5, is run by 2.5 driving conveying belt 2.2 of driving wheel.Close to the one of driven wheel 2.6
End is provided with strainer, and by strainer Conveyer Belt 2.2, strainer is turned to including the first slewing rollers 2.7, second
Roller 2.9 and the adjustment roller 2.8 between the first slewing rollers 2.7 and the second slewing rollers 2.9, the first slewing rollers 2.7 and second turn
It being fixedly installed to roller 2.9, two rollers are generally in sustained height, and adjustment roller 2.8 can move up and down under the drive of hydraulic cylinder 2.10,
It, can be to tensioning/relaxation of conveyer belt 2.2 by changing the position of adjustment roller 2.8.Refering to Fig. 7, protecting against shock roller 2.4 and damping
One end of spring 2.13 is connected, and the other end of damping spring 2.13 is fixed on bearing plate 2.14, is arranged under bearing plate 2.14
There is pressure sensor 2.15.
Blower is set in dust excluder 2.1, under the action of blower, generates downward suction, so as to will be on conveyer belt
In the dust sucking dust excluder 2.1 raised, dust is fallen into dust bag by dust collecting opening 2.12, the dust excluder 2.1 being arranged in this way
With following remarkable result: the dust raised can be sucked in the dust excluder being located at below conveyer belt, be effectively improved building ring
Border, dust excluder are set to below conveyer belt, and the raw material above belt, while the end of support roller 2.3 can be sucked to avoid dust excluder
Portion is located on opening portion 2.11, in this way while dust suction, can effectively take away the heat on support roller 2.3, can be effective
Cool down to support roller 2.3 with conveyer belt.Raw material from discharge port when falling on conveyer belt 2.2, effect of the raw material in gravity
Under, greater impact can be generated to conveyer belt 2.2, bearing this greater impact for a long time will cause the damage of support roller or conveyer belt
It is bad, it can effectively mitigate impact of the raw material to conveying device 2 by multiple protecting against shock rollers 2.4 and damping spring 2.13, simultaneously
It is arranged with pressure sensor 2.15 in bearing plate 2.14, raw material can cause 2.15 institute of pressure sensor after falling into conveyer belt 2.2
The variation of the pressure detected can calculate the weight for falling raw material, further, Ke Yigen according to the variation of this pressure
According to the weight detected, the delivery rate of adjustment oscillation dispenser 1, such as change the length of hydraulic stem 1.3, can make in this way
The conveying of raw material is more uniform, steady, and the conveying capacity of raw material can be controlled accurately, convenient for matching with subsequent handling.
Traditional strainer generally adjusts the elastic of conveyer belt by adjusting the position of driving wheel or driven wheel, this
Traditional regulative mode has the following problems: the volume of driving wheel or driven wheel is generally large, and adjusting driving wheel or driven wheel needs
Biggish power is wanted, needs to be arranged biggish hydraulic cylinder or adjustment motor thus, it is on the other hand, affiliated on driving wheel or driven wheel
The components such as gear, bearing it is more, the mobile adjustment of long term frequent easily causes the damage of these gears, bearing.The present invention passes through
The simple structure of slewing rollers and adjustment roller realizes the adjustment elastic to conveyer belt, since 2.5 side of driving wheel needs that driving is arranged
The components such as motor, reduction gearbox, space is limited, is unfavorable for installing, and strainer is arranged in 2.6 side of driven wheel, by Fig. 6 thus
It is found that when adjustment roller 2.8 moves down, it can be with Conveyer Belt 2.2, when moving up, can relax conveyer belt 2.2, in this way
Structure hydraulic cylinder 2.10 when not only can reduce adjustment stroke, while the first slewing rollers 2.7 and the second slewing rollers 2.9 are born
Most of power when adjustment on conveyer belt 2.2 in this way can reduce the pulling force that driving wheel 2.5 and driven wheel 2.6 are born, from
And the damage of driving wheel 2.5 Yu 2.6 bearing of driven wheel can be effectively prevented, extend the service life of conveying device.
S300: by crude strontium sulfide ball milling at powder.
The crude strontium sulfide strontium slag formed after rotary kiln baking is needed by ball mill grinding for bulk into powder,
So that subsequent leaching can more sufficiently.Currently used ball mill be divided into it is vertical with it is horizontal.Vertical ball mill generally comprise barrel,
Upper support structure and lower support structure, wherein barrel is rotatably mounted on upper support structure and is tied by being located at upper support
Rotary drive mechanism on structure drives the central axis around barrel itself to rotate, and vertical ball mill structure is simple, but attritor mill
Machine needs to pour out barrel powder barrel inclination flip by tipping mechanism when having ground discharging, and structure is complicated for tipping mechanism,
It is easy to damage.Horizontal ball mill generally comprises horizontal barrel, a fixed non-rotary outer cylinder is arranged outside barrel, barrel is in outer cylinder
Rotating cylinder, smashed powder is fallen into outer cylinder from barrel to be collected, and outer cylinder opening, the powder of collection is fallen from outer cylinder, horizontal ball
Grinding machine does not need tipping mechanism, but needs to be arranged the bearing arrangement of rotation between horizontal ball mill barrel and outer cylinder, passes through this
One bearing arrangement is made barrel and rotates in outer cylinder, this bearing arrangement is easy to damage, at high cost.
In view of the above-mentioned problems, the present invention uses new ball mill as shown in Figure 8,9.Including be obliquely installed barrel 3.7,
Outer cylinder 3.6, barrel 3.7 are fixed in outer cylinder 3.6, such as outer cylinder 3.6 can be welded on barrel 3.7.The inclination of barrel 3.7 is set
It sets, angle with horizontal plane is about 25-55 degree, and the mesh 3.15 communicated with outer cylinder 3.6 is offered on barrel 3.7.Outer cylinder 3.6 is main
It will be there are two effect, first is that support barrel 3.7 rotates, second is that collecting the powder after grinding and discharge.Outer cylinder 3.6 is by upper flat segments
3.11, lower flat segments 3.5 and the tilting section 3.8 between upper flat segments 3.11 and lower flat segments 3.5, upper flat segments 3.11
Outside be provided with the first guide rail 3.13, the first support wheel 3.9 is stuck in the first guide rail 3.13, and the outside of lower flat segments 3.5 is set
It is equipped with the second guide rail 3.16, the second support wheel 3.4 is stuck in the second guide rail 3.16, and the first guide rail 3.13 and the second guide rail 3.16 can
It is formed with the sheet metal 3.10 that is arranged in parallel for protruding from 3.6 outside of outer cylinder by twice, such as can be iron plate, sheet metal 3.10 welds
It is connected to the outside of outer cylinder 3.6.Conveyor screw 3.14 is provided on the inner sidewall of outer cylinder 3.6.Further, 3.7 top of barrel
It is provided with lid 3.12,3.7 bottom of barrel is connect with shaft 3.3, and shaft 3.3 is connected by retarder 3.2 with driving motor 3.1.
Strontium slag ball mill in the present invention, abrasive material and strontium slag are put into togerther in barrel 3.7 by lid 3.12, close lid
3.12, power on motor 3.1 and drive shaft 3.3 to rotate by retarder 3.2, and then barrel 3.7 is driven to rotate, outer cylinder 3.6
It is supported by the first support wheel 3.9 and the second support wheel 3.4, outer cylinder 3.6 is fixedly connected with barrel 3.7, and such outer cylinder 3.6 can edge
First guide rail 3.13 is rotated together with the second guide rail 3.16 with barrel 3.7, and the strontium slag in barrel 3.7 is ground crushing, when strontium slag
When partial size is less than the aperture of mesh 3.15 on barrel 3.7, strontium slag will be fallen into outer cylinder 3.6, since outer cylinder 3.6 is rotating, this
Strontium slag in sample outer cylinder 3.6 is under the action of conveyor screw 3.14, just by being transported to outside cylinder inside outer cylinder 3.6.Of the invention
Strontium slag ball mill, using being obliquely installed, barrel 3.7 is fixedly connected with outer cylinder 3.6, and bearing arrangement need not be arranged between them, is tied
Structure is simple, durable, will can be fallen into time during the grinding process by the conveyor screw 3.14 being arranged on 3.6 inner wall of outer cylinder outer
Strontium slag in cylinder 3.6 transfers out, it is not necessary to complicated tipping mechanism be arranged, ball mill is at low cost, is hardly damaged, production efficiency
It is high.
S400: leaching obtains the leaching liquid containing strontium ion.
SrS is strong base-weak acid salt, and generation strontium hydroxide Sr (OH) can be hydrolyzed by meeting water2Strontium Sr (SH) is hydrogenated with sulphur2Into molten
Liquid.Chemical equation is as follows:
SrS+H2O→Sr(OH)2+Sr(SH)2
Leaching is completed by leaching device 4.Traditional leaching device is generally flute profile, and the bottom of slot is laid with filter material, ball milling
Strontium slag is put into leaching slot, and the strontium sulfide in strontium slag is leached out by water filling under stirring or situation without mixing in slot,
Remaining solid waste residue not soluble in water is outwelled.This leaching device has the following problems: in strontium slag in addition to containing strontium sulfide, also containing
There are more a variety of smaller solid particles not soluble in water such as the grains of sand, soil, slag, is laid with the biggish filter material in aperture, it is difficult
To filter out above-mentioned lesser solid particle, causes leaching liquid to contain more impurity, finally influence product quality；Be laid with aperture compared with
When small filter material, since solid particle is more in strontium slag, filter material can block quickly, and filter material is layed in slot bottom, the cleaning of filter material with
Filter material that is very complicated, and using smaller aperture due is replaced, the consumption of filter material can dramatically increase, and increase production cost；?
It every time after the completion of leaching, is required to worker and enters in leaching slot, the waste residue taking-up in slot is outwelled, leaching efficiency is low, and labour is strong
Degree is big.
0, Figure 11 and Figure 12 refering to fig. 1, leaching device 4 of the invention include that outer groove 4.1 can be hung out in outer groove 4.1
Leaching can 4.2, be equipped with the first filter material 4.13 in the bottom of outer groove 4.1, the first filter material 4.13 is by being located at 4.1 bottom of outer groove
Support column 4.15 supports, and is formd between outer groove 4.1 and the first filter material 4.13 by support column 4.15 under filtrate stream
Space 4.14 further may be provided for the first protective net of the first filter material 4.13 of protection on the first filter material 4.13
4.12, the first filter material 4.13 has lesser aperture, can be filter pulp, filter cloth, strainer etc., the first protective net 4.12 can be
Stainless (steel) wire or copper mesh.The top side of outer groove 4.1 is provided with water filling port 4.11, and the other side is provided with gap 4.17, outside
The bottom of slot 4.1 offers leakage fluid dram 4.16.
Leaching can 4.2 includes outer wall 4.23 and the blender 4.25 in leaching can 4.2, the tank deck of leaching can 4.2
Be provided with stirring motor 4.21, by stirring motor 4.21 drive blender 4.25 rotate, be also provided on tank deck it is multiple into
Material mouth 4.22, the tank bottom of leaching can 4.2 are provided with the bottom cover 4.24 that can be opened, hanging ring 4.26 are fixed on outer wall 4.23,
It can use crane and leaching can 4.2 hung in or hung out outer groove 4.1 by hanging ring 4.26.
Referring to Figure 11 and Figure 12, bottom cover 4.24 includes base 4.246 made of metal, and offering on base 4.246 can
For the macropore of leaching liquid outflow, base 4.246 can be made with outer wall 4.23 of identical material, such as be made of cast iron.?
Left ear 4.243 and auris dextra portion 4.246 are symmetrically arranged on base 4.26, left ear 4.243 is substantially in one with auris dextra portion 4.246
The fork-shaped of protrusion, there are two yokes for tool.Left ear 4.243 can be integrally formed with auris dextra portion 4.246 with base 4.246, such as
It casts together.The sealing ring 4.245 and the second filter material 4.247 for sealing, the second filter material are provided on base 4.246
4.247 material can be identical as the first filter material 4.13, such as can be filter pulp, filter cloth, strainer etc., but the second filter material 4.247
Aperture it is larger, the aperture of the second filter material 4.247 is greater than the first filter material 4.13, can equally cover on the second filter material 4.247
For protecting the second protective net 4.241 of the second filter material 4.247.On outer wall 4.23 with left ear 4.243 and auris dextra portion 4.246
Left raised 4.242 and right raised 4.2410 are provided on opposite position respectively, left raised 4.242 and right raised 4.2410 for example
It can be soldered on outer wall 4.23.Left raised 4.242 extend into the left ear 4.243 of bottom cover 4.24 and by left axle 4.244
Fixed, i.e., left raised 4.242 protrude into the fork-shaped opening of left ear 4.243, and left axle 4.244 passes through left ear 4.243 and a left side is convex
4.242 are played, such bottom cover 4.24 can be rotated around left axle 4.244, so as to open/close bottom cover 4.24；Auris dextra portion
4.246 by right axle 4.249 with] shape buckle 4.240 one end be connected, right protrusion can be buckled in by buckling 4.240 other end
On 4.2410, in this way during closing bottom cover 4.24, bottom cover 4.24 is rotated around left axle 4.244, will 4.240 button of buckle after closing
On right raised 4.2410, the just firm closure of bottom cover 4.24, when needing to open bottom cover 4.24, will buckle 4.240 from right protrusion
It is taken on 4.2410, so that buckle 4.240 is detached from right raised 4.2410, bottom cover 4.24 under gravity, is opened naturally.
Leaching process: leaching can 4.2 is hung out by outer groove 4.1 by crane, bottom cover 4.24 is closed, buckle 4.240 is buckled in
It on right raised 4.2410, is poured into leaching can 4.2 from feed inlet 4.22 by strontium ground-slag material, strontium ground-slag material pouring volume is about to leach
The half of 4.2 volume of tank closes feed inlet 4.22 by filter cloth, and filter cloth can prevent the strontium ground-slag material in leaching can 4.2 from stirring
It flies out during mixing, is hung in leaching can 4.2 in outer groove 4.1 using crane, open water filling port 4.11 and filled the water into outer groove 4.1,
The lowest water level of water filling will guarantee that not feed inlet 4.22 excessively, peak level are lower than gap 4.17, and the water of injection is logical through filter cloth
It crosses feed inlet 4.22 to enter in leaching can 4.2, after water filling, starts stirring motor 4.21, driving blender 4.25 rotates, sulphur
Change strontium formation strontium sulfide aqueous solution soluble in water, strontium sulfide aqueous solution enters outer groove 4.1 through the second filter material 4.247, bottom cover 4.24
In, after leaching a period of time, opens 4.16 strontium sulfide leaching liquid of leakage fluid dram and be discharged from leakage fluid dram 4.16, the larger grain after leaching
The solid slag of diameter is filtered by the second filter material 4.247 first, and waste residue stays in leaching can 4.2, on a small quantity compared with the waste residue quilt of small particle
The filtering of first filter material 4.13, a small amount of small particle waste residue stays in outer groove 4.1, after emptying leaching liquid, is thought in outer groove 4.1 again
Water filling, carries out secondary leaching, and after leaching 2-3 times repeatedly, leaching is completed.Leaching can 4.2 is hung from outer groove 4.1 later
Out, bottom cover 4.24 is opened, the solid slag in leaching can 4.2 is dropped out, is prepared for leaching next time.
Leaching device of the invention adds the interior leaching jar structure that can be hung out using outer groove, and stirring is arranged in leaching can 4.2
Device enables strontium sulfide to be substantially soluble in water, and leaching effect is good, and openable bottom cover 4.24 is arranged in the bottom of leaching can 4.2,
What opening bottom cover 4.24 can be convenient solid slag is discharged, and is provided with the first filter material 4.13 and the second filter material 4.247, the second filter
The aperture of material 4.247 is greater than the first filter material 4.13, and solid slag most of so is filtered by the second filter material 4.247, a small amount of
Small particle size solid waste residue is filtered by the first filter material 4.13, can greatly reduce containing for waste residue in leaching liquid by such two layers filtering
Amount, and since most of waste residue is filtered by the second filter material 4.247, the first filter material 4.13 is not susceptible to block, the first filter material
4.13 service life greatly increases, and the second filter material 4.247 is set on bottom cover 4.24, and opening bottom cover 4.24 in this way can be convenient
The second filter material of replacement 4.247.
S500: purification removes the impurity in leaching liquid.
In addition to containing strontium ion, also containing impurity such as iron, calcium, barium, magnesium in leaching liquid.Sodium sulphate is added in leaching liquid,
So that barium ions is removed in the form of the precipitating of barium sulfate, NaOH is added later to adjust the pH value of solution, so that calcium, iron etc. are miscellaneous
Matter hydrolysis in solution from removing and hydrolysis does not occur and still remains in solution for strontium.Sr(OH)2Solubility with temperature increase
It significantly increases, and Ca (OH)2Solubility is smaller in water, and increases and reduce with temperature, according to this characteristic, takes raising molten
The method of liquid temperature, by Ca (OH)2Precipitation and separation is gone out.Amount by the way that NaOH is added controls pH the ≈ 9-11, temperature 80- of solution
90 degree, so that the Ca in immersion liquid2+、Fe2+、Fe3+Plasma is separated with hydroxide precipitation form.
2NaOH+8H2O+Sr2+→Sr(OH)2·8H2O↓+2Na+
S600: being added sodium carbonate liquor, and chemical combination generates strontium carbonate precipitation and vulcanized sodium mixture, separates through plate-frame filtering,
Sodium sulfide solution removes devaporation process concentration 60% vulcanized sodium finished product of production.
S700: it washed, be beaten, dried, crushed to resulting sodium carbonate is separated by filtration, obtain strontium carbonate particle.
S800: cooling down strontium carbonate particle, and packaging obtains final strontium carbonate product.
Drying, there are also higher temperature for smashed strontium carbonate particle, traditionally generally use natural cooling method, but certainly
Right cooling time is long, and strontium carbonate particle is exposed in air for a long time, is also easy to produce caking phenomenon, largely effects on product quality, thus
The present invention completes cooling by cooling device 5.
Cooling device 5 uses tower-type air-cooled structure, as shown in figure 13.Cooling device 5 include feed inlet 5.3, tower body 5.5,
Discharge port 5.6 and hollow shaft 5.2, feed inlet 5.3 are connected with tower body 5.5 by shoulder 5.4, are offered on shoulder 5.4 more
A gas vent, the lower end of tower body 5.5 gradually narrow and form the discharge port 5.6, and shaft 5.2 is located in tower body 5.5, shaft 5.2
It is pierced by from feed inlet 5.3, is connected with the driving motor 5.1 of top, the bottom end of shaft 5.2 is provided with multiple arms 5.8, arm 5.8
It for hollow structure, and communicates, is provided on arm 5.8 multiple downward (i.e. towards 5.6 side of discharge port) inside shaft 5.2
Venthole 5.7, be fixed with a disk 5.9 at the feed inlet 5.3 in shaft 5.2, disk 5.9 and arm 5.8 can be with turning
Axis 5.2 rotates together.
Cooling procedure: strontium carbonate particle enters tower body 5.5 by feed inlet 5.3, falls on disk 5.9, with disk 5.9
It rotates, the strontium carbonate particle on disk is thrown away from disk 5.9 under the influence of centrifugal force, is become scattered about in tower body 5.5, hollow
Shaft 5.2 in by cold air, cold air is sprayed through arm 5.8 from venthole 5.7, with falling for strontium carbonate particle, discharging
Mouth 5.6 can gradually be carbonated the closure of strontium particle, and such cold air flows up, with the strontium carbonate particle stroke convection current fallen, carbon
Sour strontium particle realizes cooling, and cold air becomes hot-air, and hot-air is discharged from the aperture on shoulder 5.4, strontium carbonate after cooling
Particle is discharged from discharge port 5.6.Strontium carbonate particle can be made to become to disperse as far as possible by disk 5.9, be conducive to fast quickly cooling
But, venthole 5.7 is arranged downward, can block venthole 5.7 in this way to avoid the strontium carbonate particle fallen.
The present invention produces strontium carbonate using celestine carbon reduction and carbonization method, and abundant raw material, production cost is low, uses in production
Except the technological means of the impurity such as iron, calcium, barium, magnesium, impurity content in strontium carbonate product is effectively reduced, product product are improved
Matter；A variety of sophisticated equipments are used in production, by vibrating the cooperation of dispenser and conveying device, so that the conveying of raw material is more
Uniformly, steadily, the conveying capacity of raw material can be controlled accurately, can also prevent dust and impact, and ball mill is at low cost, be hardly damaged,
High production efficiency, leaching device add the interior leaching jar structure that can be hung out using outer groove, increase the service life of filter material, waste residue can
To be easily discharged, cooling device can rapidly and efficiently cool down strontium carbonate particle.Taking for the above measure, improves carbonic acid
The quality of strontium, improves production efficiency, increases yield
Many details are elaborated in the above description to fully understand the present invention.But above description is only
Presently preferred embodiments of the present invention, the invention can be embodied in many other ways as described herein, therefore this
Invention is not limited by specific implementation disclosed above.Any those skilled in the art are not departing from the technology of the present invention simultaneously
In the case of aspects, all technical solution of the present invention is made using the methods and technical content of the disclosure above many possible
Changes and modifications or equivalent example modified to equivalent change.Anything that does not depart from the technical scheme of the invention, according to this
The technical spirit of invention any simple modifications, equivalents, and modifications made to the above embodiment, still fall within skill of the present invention
In the range of the protection of art scheme.
Claims (7)
1. a kind of strontium carbonate production method, which comprises the following steps:
S100: by celestine and raw coal after crusher crushes, it is sent into feed bin；
S200: the raw material in feed bin is sent into rotary kiln by oscillation dispenser (1) and conveying device (2), after rotary kiln baking
Form crude strontium sulfide；Oscillation dispenser (1) includes the hopper (1.2) in dustpan shape, hopper (1.2) from rear portion anteriorly
It gradually narrows to form discharge port, conveying device (2) is located at below discharge port, and the rear portion of hopper (1.2) passes through two springs
(1.1) Suspending fixation, discharge port are arranged by two telescopic hydraulic stem (1.3) Suspending fixations in the lower section of hopper (1.2)
There are two the eccentric wheel (1.4) abutted with hopper (1.2), eccentric wheel (1.4) is located at the rear portion of hopper (1.2), eccentric wheel (1.4)
It is fixed on first axle (1.7), the both ends of first axle (1.7) can be supported by the way that bearing block is fixed, the second axis (1.6) and first
Axis (1.7) is arranged in a mutually vertical manner, and first axle (1.7) is connected with the second axis (1.6) by worm gear structure (1.8), worm gear snail
Rod structure (1.8) includes the worm gear (1.82) being fixed on first axle (1.7) and the worm screw being fixed on the second axis (1.6)
(1.81), worm gear (1.82) is engaged with worm screw (1.81)；Conveying device (2) includes support roller (2.3), protecting against shock mechanism, conveying
Band (2.2) and dust excluder (2.1), support roller (2.3) are used for bearing conveying belt (2.2), and protecting against shock mechanism is by multiple densely arranged
Protecting against shock roller (2.4) composition, the spacing between protecting against shock roller (2.4) is less than the spacing between support roller (2.3), dust excluder
(2.1) it is located at the lower section of conveyer belt (2.2), dust excluder (2.2) is in infundibulate, and upper part has biggish opening portion (2.11),
Lower part has lesser dust collecting opening (2.12), and the end of support roller (2.3) is located on opening portion (2.11)；
S300: by ball mill by crude strontium sulfide ball milling at powder；
S400: leaching obtains the leaching liquid containing strontium ion；Leaching is completed by leaching device (4), and leaching device (4) includes outer groove
(4.1) and it is located at the leaching can (4.2) that can be hung out in outer groove (4.1), the tank bottom of leaching can (4.2) is provided with openable bottom cover
(4.24)；
S500: purification removes the impurity in leaching liquid；
S600: being added sodium carbonate liquor, and chemical combination generates strontium carbonate precipitation and vulcanized sodium mixture, separates through plate-frame filtering；
S700: it washed, be beaten, dried, crushed to resulting sodium carbonate is separated by filtration, obtain strontium carbonate particle；
S800: cooling down strontium carbonate particle by cooling device (5), and packaging obtains final strontium carbonate product；Cooling dress
Setting (5) includes feed inlet (5.3), tower body (5.5), discharge port (5.6) and hollow shaft (5.2), and feed inlet (5.3) passes through shoulder
Portion (5.4) is connected with tower body (5.5), and multiple gas vents are offered on shoulder (5.4), and shape is gradually narrowed in the lower end of tower body (5.5)
At the discharge port (5.6), shaft (5.2) is located in tower body (5.5), and shaft (5.2) is pierced by from feed inlet (5.3), with top
Driving motor (5.1) be connected, the bottom end of shaft (5.2) is provided with multiple arms (5.8), arm (5.8) also be hollow structure, with
It is communicated inside shaft (5.2), multiple ventholes (5.7) downward is provided on arm (5.8), are leaned on shaft (5.2)
It is fixed with a disk (5.9) at nearly feed inlet (5.3), disk (5.9) can be rotated together with arm (5.8) with shaft (5.2).
2. strontium carbonate production method according to claim 1, which is characterized in that master is arranged in one end of conveyer belt (2.2)
Driven wheel (2.6) are arranged in driving wheel (2.5), the other end, and rotation is driven by motor in driving wheel (2.5), are driven by driving wheel (2.5) defeated
It send band (2.2) to run, one end close to driven wheel (2.6) is provided with strainer, passes through strainer Conveyer Belt
(2.2), strainer includes the first slewing rollers (2.7), the second slewing rollers (2.9) and is located at the first slewing rollers (2.7) and second
Adjustment roller (2.8) between slewing rollers (2.9), the first slewing rollers (2.7) and the second slewing rollers (2.9) are fixedly installed, at two rollers
In sustained height, adjusting roller (2.8) can move up and down under the drive of hydraulic cylinder (2.10), adjust roller (2.8 position by changing
It sets, can adjust the elastic of conveyer belt (2.2), protecting against shock roller (2.4) is connected with one end of damping spring (2.13), damping spring
(2.13) the other end is fixed on bearing plate (2.14), is arranged with pressure sensor (2.15) in bearing plate (2.14).
3. strontium carbonate production method according to claim 1, which is characterized in that the ball mill includes the material being obliquely installed
Cylinder (3.7), outer cylinder (3.6), barrel (3.7) are fixed in outer cylinder (3.6), and barrel (3.7) is obliquely installed, angle with horizontal plane
For 25-55 degree, the mesh (3.15) communicated with outer cylinder (3.6) is offered on barrel (3.7)；Outer cylinder (3.6) is by upper flat segments
(3.11), lower flat segments (3.5) and the tilting section (3.8) between upper flat segments (3.11) and lower flat segments (3.5), on
It being provided on the outside of flat segments (3.11) the first guide rail (3.13), the first support wheel (3.9) is stuck in the first guide rail (3.13), under
It being provided on the outside of flat segments (3.5) the second guide rail (3.16), the second support wheel (3.4) is stuck in the second guide rail (3.16),
Conveyor screw (3.14) are provided on the inner sidewall of outer cylinder (3.6).
4. strontium carbonate production method according to claim 1, which is characterized in that be equipped in the bottom of outer groove (4.1)
One filter material (4.13), the first filter material (4.13) are supported by the support column (4.15) for being located at outer groove (4.1) bottom, pass through support column
(4.15) space (4.14) flowed down for filtrate is formd between outer groove (4.1) and the first filter material (4.13), in the first filter
For protecting the first protective net (4.12) of the first filter material (4.13), the first filter material (4.13) has smaller for setting on material (4.13)
Aperture, the top side of outer groove (4.1) is provided with water filling port (4.11), and the other side is provided with gap (4.17), in outer groove
(4.1) bottom offers leakage fluid dram (4.16).
5. strontium carbonate production method according to claim 1, which is characterized in that leaching can (4.2) includes outer wall (4.23)
And it is located at the blender (4.25) in leaching can (4.2), the tank deck of leaching can (4.2) is provided with stirring motor (4.21), leads to
Stirring motor (4.21) driving blender (4.25) rotation is crossed, multiple feed inlets (4.22), leaching can are also provided on tank deck
(4.2) tank bottom is provided with openable bottom cover (4.24), and hanging ring (4.26) are fixed on outer wall (4.23).
6. strontium carbonate production method according to claim 1, which is characterized in that bottom cover (4.24) includes made of metal
Base (4.246) offers the hole for leaching liquid outflow, is symmetrically arranged with a left side on base (4.26) on base (4.246)
Ear (4.243) and auris dextra portion (4.246), left ear (4.243) and auris dextra portion (4.246) are in a fork-shaped protruded, in base
(4.246) it is provided with the sealing ring (4.245) and the second filter material (4.247) for sealing on, is covered on the second filter material (4.247)
Lid for protecting the second protective net (4.241) of the second filter material (4.247), on the outer wall (4.23) of leaching can (4.2) with a left side
Ear (4.243) and auris dextra portion (4.246) are provided with left raised (4.242) and right protrusion on opposite position respectively
(4.2410), left raised (4.242) extend into the left ear (4.243) of bottom cover (4.24) and are fixed by left axle (4.244),
Bottom cover (4.24) can rotate around left axle (4.244), auris dextra portion (4.246) by right axle (4.249) with] shape buckle (4.240)
One end is connected, and the other end of buckle (4.240) can be buckled on right raised (4.2410).
7. strontium carbonate production method according to claim 1, which is characterized in that the step S500 includes, in leaching liquid
Middle addition sodium sulphate, so that barium ions is removed in the form of the precipitating of barium sulfate, NaOH is added later come the pH for adjusting solution is
PH ≈ 9-11, temperature 80-90 degree remove the hydrolysis of the impurity such as calcium, iron from solution.
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| CN109502621A (en) * | 2018-04-30 | 2019-03-22 | 王安琪 | Strontium carbonate production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109502621A (en) * | 2018-04-30 | 2019-03-22 | 王安琪 | Strontium carbonate production method |
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Application publication date: 20190405 |