CN108793086A - The leaching method and leaching device of alkaline earth sulfide - Google Patents
The leaching method and leaching device of alkaline earth sulfide Download PDFInfo
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- CN108793086A CN108793086A CN201810808755.2A CN201810808755A CN108793086A CN 108793086 A CN108793086 A CN 108793086A CN 201810808755 A CN201810808755 A CN 201810808755A CN 108793086 A CN108793086 A CN 108793086A
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- C01B17/42—Sulfides or polysulfides of magnesium, calcium, strontium, or barium
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Abstract
The present invention provides a kind of leaching methods of alkaline earth sulfide, including：Alkaline earth sulfide coarse fodder is uniformly mixed with level-one leaching water and carries out level-one leaching, obtains primary mixes material；Primary mixes material is settled, level-one sedimentation slurry and level-one leaching liquid are obtained；Level-one leaching liquid is collected to get alkaline earth sulfide solution.The present invention also provides a kind of leaching devices of alkaline earth sulfide, including：The level-one leacher and primary settler being arranged from top to bottom；Coarse fodder input channel and level-one leaching water inlet pipe road are provided on level-one leacher；Level-one leacher is internally provided with the first blender；Level-one leacher is connected with primary settler by primary mixes material conveying tube road, and the one end in primary mixes material conveying tube road is arranged in the bottom of level-one leacher, and the other end is arranged on the top of primary settler；First class product output channel is provided on primary settler.
Description
Technical field
The invention belongs to chemical fields, in particular it relates to which the leaching method of alkaline earth sulfide and leaching fill
It sets.
Background technology
Strontium is the element of abundance minimum in alkaline-earth metal, can be applied to manufacture alloy, photoelectric tube and analytical chemistry, cigarette
Fire etc..The strontium of mass number 90 is a kind of radioactive isotope, can make β ray irradiations source, and half-life period is 25 years.Strontium is very strong due to it
Absorption X-ray radiation function and unique physical and chemical performance, and be widely used in electronics, chemical industry, metallurgy, military project, light
The every field such as work, medicine and optics.Industrial magnesium strontium produces mainly based on celestine, followed by strontianite.With strontium carbonate
The strontium salts such as strontium nitrate, strontium chloride, high-purity strontium carbonate, strontium phosphate, strontium aluminate can be produced for raw material.
Barium is element most active in alkaline-earth metal, simple substance barium is never found in nature, often with the shape of compound
Formula exists, and barium mainly exists in the form of sulfate or carbonate, for barium salt processed, alloy, fireworks, nuclear reactor etc., and
Excellent oxygen scavenger when refined copper.It is widely used in alloy, there are the alloys such as lead, calcium, magnesium, sodium, lithium, aluminium and nickel.Barium metal can be used as
Remove the getter of vacuum tube and kinescope trace gas, the degasser of refined metals；Barium nitrate and potassium chlorate, magnesium powder, rosin
Mixing can be used for manufacturing signal flare and pyrotechnics.Soluble barium compound is commonly used for insecticide.Barium sulphide is yellow or dark red
Powder has hydrogen sulfide odor.It meets water and is gradually hydrolyzed to hydrogen sulfide and barium hydroxide.Toxic, aqueous solution is in strong basicity and has corruption
Corrosion.For making without arsenic hydrogen sulfide.For manufacturing various barium salts.
Crude strontium sulfide/barium sulphide grey black of the mined material of strontium, barium mine after rotary furnace is processed out, by leaching
Its aqueous solution is obtained, further processes the compound that strontium or barium is made, such as：Strontium carbonate, strontium nitrate, strontium chloride；Barium carbonate,
Barium nitrate, barium chloride etc..Leaching strontium sulfide/barium sulphide is exactly the hot water by the grey black of Containing Sulfur strontium/barium sulphide at 90 DEG C or so
Middle immersion obtains strontium sulfide/barium sulfide solution, then residue is detached and is post-processed.
Currently, the mode of domestic leaching strontium sulfide/barium sulphide includes mainly：Screw feeder leaching, trough leaching, basket-hanging leaching
It takes, static leaching etc..Existing leaching mode be primarily present steam is big, environment is poor, the degree of automation is low, energy consumption it is high all kinds of
Problem seriously restricts the survival and development of enterprise wherein environmental protection, safety problem protrude.Therefore, a kind of novel vulcanization is found
Strontium/barium sulphide leaching method is extremely urgent.
Invention content
The goal of the invention of the present invention is in view of the drawbacks of the prior art, to provide a kind of leaching side of alkaline earth sulfide
The leaching device of method and alkaline earth sulfide.
On the one hand, the present invention provides a kind of leaching methods of alkaline earth sulfide, including：
(1) it is 10 according to weight ratio by alkaline earth sulfide coarse fodder and level-one leaching water: (20.1-40.2) is conveyed respectively
Level-one leaching is carried out to being uniformly mixed in level-one leacher (17), obtains primary mixes material；
(2) primary mixes material is delivered in primary settler (18) and is settled, obtain level-one sedimentation slurry and one
Grade leaching liquid；
(3) level-one leaching liquid is collected to get alkaline earth sulfide solution.
Leaching method above-mentioned, further comprises：
(4) it is 10 according to weight ratio with two level leaching water by level-one sedimentation slurry: (19-38) is delivered to two level leaching respectively
It is uniformly mixed in device (19) and carries out two level leaching, obtain two-stage mixture material；
(5) two-stage mixture material is delivered in two level settler (20) and is settled, obtain two level sedimentation slurry and two
Grade leaching liquid；
(6) two level leaching liquid is collected, alternatively, two level leaching liquid is delivered to level-one leacher (17).
Leaching method above-mentioned, further comprises：
(7) it is 10 according to weight ratio with three-level leaching water by two level sedimentation slurry: (25-35) is delivered to three-level leaching respectively
It is uniformly mixed in device (21) and carries out three-level leaching, obtain three-level mixed material；
(8) three-level mixed material is delivered in three-level settler (22) and is settled, obtain three-level sedimentation slurry and three
Grade leaching liquid；
(9) three-level leaching liquid is delivered to two level leacher (19) or level-one leacher (17).
Leaching method above-mentioned, three-level sedimentation slurry are filtered dehydration by dehydrator filter (23), obtained filtrate
It is delivered to three-level leacher (21).
Leaching method above-mentioned, the alkaline earth sulfide are strontium sulfide and/or barium sulphide.
Leaching method above-mentioned, in step (1), alkaline earth sulfide coarse fodder is obtained using following methods：By alkaline earth gold
Belong to ore and be crushed to≤5mm, is subsequently delivered to rotary kiln and is roasted 1-3 hours at 900 DEG C -1300 DEG C, be then cooled to 50-200
℃。
Leaching method above-mentioned, level-one leaching water, two level leaching water and three-level leaching water are the heat that temperature is 65 DEG C -95 DEG C
Water.
On the other hand, the present invention provides a kind of leaching devices of alkaline earth sulfide, including：It is arranged from top to bottom
Level-one leacher (17) and primary settler (18)；Coarse fodder input channel (1) and level-one leaching are provided on level-one leacher (17)
Water intaking input channel (30)；Level-one leacher (17) is internally provided with the first blender (24)；Level-one leacher (17) and level-one
Settler (18) is connected by primary mixes material conveying tube road (2), one end setting in primary mixes material conveying tube road (2)
Bottom in level-one leacher (17), the other end are arranged on the top of primary settler (18)；Primary settler is arranged on (18)
There is first class product output channel (16).
Leaching device above-mentioned, further comprises：The two level leacher (19) and two level settler being arranged from top to bottom
(20)；Two level leacher (19) settles slurry conveying pipeline (3) by level-one and is connected with primary settler (18), level-one sedimentation
The setting of slurry conveying pipeline (3) one end is arranged in the bottom of primary settler (18), the other end in the upper of two level leacher (19)
Portion；Two level leaching water inlet pipe road (29) is provided on two level leacher (19)；Two level leacher (19) is internally provided with second
Blender (25)；Two level leacher (19) is connected with two level settler (20) by two-stage mixture material conveying tube road (4), and two
In the bottom of two level leacher (19), the other end is arranged in two level settler for one end setting of grade mixed material conveyance conduit (4)
(20) top；Two level leaching liquid conveyance conduit (12) and secondary product output channel are provided on two level settler (20)
(15)。
Leaching device above-mentioned, further comprises：The three-level leacher (21) and three-level settler being arranged from top to bottom
(22)；Three-level leacher (21) settles slurry conveying pipeline (5) by two level and is connected with two level settler (20), two level sedimentation
The setting of slurry conveying pipeline (5) one end is arranged in the bottom of two level settler (20), the other end in the upper of three-level leacher (21)
Portion；Three-level leaching water inlet pipe road (9) is provided on three-level leacher (21)；Three-level leacher (21) is internally provided with third and stirs
Mix device (26)；Three-level leacher (21) is connected with three-level settler (22) by three-level mixed material conveyance conduit (6), three-level
In the bottom of three-level leacher (21), the other end is arranged in three-level settler for one end setting of mixed material conveyance conduit (6)
(22) top；Three-level leaching liquid conveyance conduit (10) and three-level sedimentation slurry output channel are provided on three-level settler (22)
(7)。
Leaching device above-mentioned, further comprises：Dehydrator filter (23)；Dehydrator filter (23) is settled by three-level expects
Slurry output channel (7) is connected with three-level settler (22)；Filtrate recovery channel (8) is additionally provided on dehydrator filter (23),
For filtrate to be recycled to three-level leacher (21).
Leaching device above-mentioned, two level leaching liquid conveyance conduit (12) one end is arranged on two level settler (20), another
End is arranged on level-one leacher (17), for two level leaching liquid to be delivered to level-one leacher by two level settler (20)
(17)。
Leaching device above-mentioned, three-level leaching liquid conveyance conduit (10) one end is arranged on three-level settler (22), another
End is arranged on two level leacher (19), for three-level leaching liquid to be delivered to two level leacher by three-level settler (22)
(19)。
Leaching device above-mentioned, three-level leaching liquid conveyance conduit (10) one end is arranged on three-level settler (22), another
End is arranged on level-one leacher (17), for three-level leaching liquid to be delivered to level-one leacher by three-level settler (22)
(17)。
Leaching device above-mentioned, level-one leacher (17), primary settler (18), two level leacher (19), two level sedimentation
Thermal insulation material is respectively set in the outer wall of device (20), three-level leacher (21) and three-level settler (22).
Compared with the existing technology, technical scheme of the present invention has the advantages that：
The present invention use enclosed construction, avoid production process generation a large amount of steam and dust the problem of, produce ring
Border is cleaned, the problem of reducing contact of the alkaline earth sulfide with air and aoxidize, alkaline earth sulfide it is efficient
Extraction rate improves the utilization rate of the alkaline-earth metal resource such as strontium, barium；Leacher and settler outer wall using thermal insulation material into
Row heat preservation, the heat for reducing production process generation are transmitted, and reduce energy expenditure, while avoiding what worker was easily burned to ask as possible
Topic；Consecutive production improves the quality of leaching liquid, reduces the range fluctuation of leaching liquid concentration so that production becomes more
It is easy to control, to improve the production efficiency and benefit of enterprise.
Description of the drawings
Fig. 1 is the process flow chart of leaching method of the present invention.
Fig. 2 is the structural schematic diagram of leaching device of the present invention.
Specific implementation mode
In order to fully understand the purpose of the present invention, feature and effect, by following specific implementation modes, the present invention is made detailed
It describes in detail bright.For the process of the present invention in addition to following the description, remaining is all made of the conventional method or device of this field.Unless otherwise
Illustrate, otherwise the term involved in the present invention all has the normally understood meaning of those skilled in the art.
For leaching mode there are the steam big, environment of current alkaline earth sulfide especially strontium sulfide and barium sulphide
Difference, the degree of automation are low, the high various environmentally friendly and safety problems of energy consumption, and the present invention provides a kind of leachings of alkaline earth sulfide
Take method and apparatus.
In a first aspect, the present invention provides a kind of leaching methods of alkaline earth sulfide (as shown in Figure 1), including by alkali
Earth metal sulfide coarse fodder leaches water with level-one and carries out level-one leaching, is then settled, and level-one sedimentation slurry and level-one are obtained
Leaching liquid collects level-one leaching liquid to get finished product product alkaline earth sulfide solution, and the alkaline earth sulfide solution is available
In the corresponding alkaline-earth metal product of production.
Preferably, slurry can be settled to level-one make further leaching.Specifically, water is leached using two level to settle level-one
Slurry carries out two level leaching, is then settled, and two level sedimentation slurry and two level leaching liquid are obtained.Two level leaching liquid is collected,
It, can be as finished product product when needing alkaline earth sulfide solution concentration not high.Alternatively, two level leaching liquid is transmitted back to
Level-one leaches workshop section and is leached for level-one together with level-one leaching water.
Preferably, slurry can be settled to two level make further leaching.Specifically, water is leached using three-level to settle two level
Slurry carries out three-level leaching, is then settled, and three-level sedimentation slurry and three-level leaching liquid are obtained.Three-level leaching liquid is transmitted back to
Two level leaches workshop section and is leached for two level together with two level leaching water, and/or, three-level leaching liquid is transmitted back to level-one and leaches workshop section
It is leached for level-one.
Preferably, dehydration is filtered to three-level sedimentation slurry, filtrate is delivered to three-level leaching workshop section soaks for three-level
It takes.It is sent after filter residue is concentrated to solid slag field and is handled.
Wherein, the alkaline earth sulfide that method of the invention is directed to can be arbitrary alkaline earth sulfide, and excellent
Choosing is strontium sulfide and/or barium sulphide.Following methods acquisition may be used in the alkaline earth sulfide coarse fodder used in the present invention：It will
Alkaline-earth metal ore is crushed to≤5mm, is subsequently delivered to rotary kiln and is roasted 1-3 hours at 900 DEG C -1300 DEG C, is then cooled to
50-200℃。
Wherein, in level-one leaching workshop section, alkaline earth sulfide coarse fodder and the weight ratio of level-one leaching water are 10: (20.1-
40.2).Two level leaches in workshop section, and the weight ratio that level-one settles slurry and two level leaching water is 10: (19-38).Three-level leaches work
Duan Zhong, the weight ratio that two level settles slurry and three-level leaching water is 10: (25-35).In leaching workshop sections at different levels, tune can be passed through
The input speed of whole each material makes the ratio between each material in aforementioned range.
Wherein, level-one leaching water, two level leaching water and the three-level leaching water that method of the invention uses are hot water, preferably
65 DEG C -95 DEG C of hot water, and more preferably 70 DEG C -90 DEG C of hot water.
Wherein, in above-mentioned each process, specific leaching time, sedimentation time, material conveying speed etc. can be by this fields
Technical staff determines according to actual conditions.
Second aspect, the present invention provides a kind of leaching devices of alkaline earth sulfide (as shown in Figure 2), including：From
The level-one leacher 17 and primary settler 18 of upper and lower setting；Coarse fodder input channel 1 and one is provided on level-one leacher 17
Grade leaching water inlet pipe road 30；Level-one leacher 17 is internally provided with the first blender 24；Level-one leacher 17 and level-one sedimentation
Device 18 is connected by primary mixes material conveying tube road 2, and one end setting in primary mixes material conveying tube road 2 is leached in level-one
The bottom of device 17, the other end are arranged on the top of primary settler 18；First class product efferent duct is provided on primary settler 18
Road 16.
Preferably, which further comprises：The two level leacher 19 and two level settler 20 being arranged from top to bottom；
Two level leacher 19 settles slurry conveying pipeline 3 by level-one and is connected with primary settler 18, and level-one settles slurry pipeline transport pipe
3 one end of road is arranged in the bottom of primary settler 18, and the other end is arranged on the top of two level leacher 19；On two level leacher 19
It is provided with two level leaching water inlet pipe road 29；Two level leacher 19 is internally provided with the second blender 25；19 He of two level leacher
Two level settler 20 is connected by two-stage mixture material conveying tube road 4, and one end setting in two-stage mixture material conveying tube road 4 exists
The bottom of two level leacher 19, the other end are arranged on the top of two level settler 20；Two level leaching is provided on two level settler 20
Take liquid conveyance conduit 12 and secondary product output channel 15.
Preferably, which further comprises：The three-level leacher 21 and three-level settler 22 being arranged from top to bottom；
Three-level leacher 21 settles slurry conveying pipeline 5 by two level and is connected with two level settler 20, and two level settles slurry pipeline transport pipe
5 one end of road is arranged in the bottom of two level settler 20, and the other end is arranged on the top of three-level leacher 21；On three-level leacher 21
It is provided with three-level leaching water inlet pipe road 9；Three-level leacher 21 is internally provided with third blender 26；Three-level leacher 21 and three
Grade settler 22 is connected by three-level mixed material conveyance conduit 6, and one end of three-level mixed material conveyance conduit 6 is arranged three
The bottom of grade leacher 21, the other end are arranged on the top of three-level settler 22；Three-level leaching is provided on three-level settler 22
Liquid conveyance conduit 10 and three-level sedimentation slurry output channel 7.
Preferably, which further comprises：Dehydrator filter 23；Dehydrator filter 23 settles slurry by three-level
Output channel 7 is connected with three-level settler 22；It is additionally provided with filtrate recovery channel 8 on dehydrator filter 23, is used for filtrate
It is recycled to three-level leacher 21.
Wherein, 12 one end of two level leaching liquid conveyance conduit is arranged on two level settler 20, and other end setting is soaked in level-one
It takes on device 17, for two level leaching liquid to be delivered to level-one leacher 17 by two level settler 20.
Wherein, 10 one end of three-level leaching liquid conveyance conduit is arranged on three-level settler 22, and other end setting is soaked in two level
It takes on device 19, for three-level leaching liquid to be delivered to two level leacher 19 by three-level settler 22；And/or three-level leaching liquid is defeated
10 one end of pipeline is sent to be arranged on three-level settler 22, the other end is arranged on level-one leacher 17, is used for three-level leaching liquid
Level-one leacher 17 (not shown) is delivered to by three-level settler 22.
Wherein, level-one leacher 17, primary settler 18, two level leacher 19, two level settler 20, three-level leacher 21
Thermal insulation material is respectively set with the outer wall of three-level settler 22.
Below by taking strontium sulfide, barium sulphide as an example, in conjunction with Fig. 1 and Fig. 2 to a kind of preferably specific real of leaching method of the present invention
The mode of applying illustrates.
Obtain coarse fodder
It is≤5mm that the barium mine or strontium mine (barium mine/strontium mine) exploited from mining site are crushed to grain size through pulverizer, is delivered to revolution
Kiln is then cooled to 50-200 in 1-3 hours obtained strontium sulfides of 900 DEG C of -1300 DEG C of roasting reductions/barium sulphide grey black (i.e. coarse fodder)
DEG C in case follow-up leaching uses.
Level-one leaches workshop section
It is 10 that strontium sulfide/barium sulphide grey black is leached water according to weight ratio with about 90 DEG C of level-ones: (20.1-40.2) is passed through respectively
It is delivered in level-one leacher 17 by coarse fodder input channel 1 and level-one leaching water inlet pipe road 30, it will using the first blender 24
Strontium sulfide/barium sulphide grey black is uniformly mixed with level-one leaching water and carries out level-one leaching, obtains primary mixes material.It is leached in level-one
In device 17, partial vulcanization strontium/barium sulphide is leached.
Primary mixes material is delivered in primary settler 18 by primary mixes material conveying tube road 2 and is settled, and is obtained
Slurry and level-one leaching liquid are settled to level-one.Finished product strontium sulfide/barium sulfide solution is collected by first class product output channel 16,
It can be used for processing strontium carbonate or other strontium salts, barium carbonate, barium nitrate or other barium salts.
Two level leaches workshop section
The level-one sedimentation slurry to settle down settles slurry conveying pipeline 3 by level-one and is delivered to two level leacher 19, together
When water inlet pipe road 29 leached by two level input about 90 DEG C of two levels into two level leacher 19 and leach water, level-one settle slurry with
The weight ratio that two level leaches water is 10: (19-38).Level-one is settled into slurry using the second blender 25 and two level leaching water mixes
Two level leaching is uniformly carried out, two-stage mixture material is obtained.In two level leacher 19, remaining strontium sulfide/barium sulphide part is immersed
Go out.
Two-stage mixture material is delivered in two level settler 20 by two-stage mixture material conveying tube road 4 and is settled, and is obtained
Slurry and two level leaching liquid are settled to two level.Two level leaching liquid is back to level-one leacher by two level leaching liquid conveyance conduit 12
For leaching strontium sulfide/barium sulphide grey black together with level-one leaching water in 17.Optionally, as demand strontium sulfide/barium sulphide is water-soluble
Liquid concentration is not high, can also be extracted by secondary product output channel 15 and do finished product product.
Three-level leaches workshop section
The two level sedimentation slurry to settle down settles slurry conveying pipeline 5 by two level and is delivered to three-level leacher 21, together
When water inlet pipe road 9 leached by three-level input about 90 DEG C of three-levels into three-level leacher 21 and leach water, two level settle slurry with
The weight ratio that three-level leaches water is 10: (25-35).Two level sedimentation slurry is mixed with three-level leaching water using third blender 26
Three-level leaching is uniformly carried out, three-level mixed material is obtained.In three-level leacher 21, remaining strontium sulfide/barium sulphide part is again
It is leached.
Three-level mixed material is delivered in three-level settler 22 by three-level mixed material conveyance conduit 6 and is settled, and is obtained
Slurry and three-level leaching liquid are settled to three-level.Three-level leaching liquid is back to two level leacher by three-level leaching liquid conveyance conduit 10
In 19 workshop section is leached for two level together with two level leaching water.
Dewatering and filtering workshop section
Three-level sedimentation slurry is delivered to dehydrator filter 23 by three-level sedimentation slurry output channel 7 and is carried out dehydrating,
Obtained filtrate is recycled to three-level leacher 21 together with three-level leaching water for three-level leaching work through filtered fluid recovery channel 8
Section.It send to solid slag field and is handled after the residue of the processing of dehydrator filter 23 is concentrated.
Embodiment
It is further illustrated the present invention below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
Product specification selects.
Embodiment 1：Barium sulphide leaches
(1) it is 5mm that the barium mine exploited from mining site is crushed to grain size through pulverizer, is delivered to rotary kiln and is roasted at about 1000 DEG C
3 hours obtained barium sulphide grey black (barium sulphide content is 65wt%) of reduction, are then cooled to 200 DEG C in case follow-up leaching uses.
(2) level-one leacher 17 is delivered to the speed of 10t/h by coarse fodder input channel 1 through overcooled barium sulphide grey black
In, about 90 DEG C of level-one leaching water leach water inlet pipe road 30 by level-one and are delivered to level-one leacher 17 with the speed of 18.5t/h
In, barium sulphide grey black is uniformly mixed with level-one leaching water using the first blender 24 and carries out level-one leaching, obtains level-one mixing
Material.
Primary mixes material is delivered in primary settler 18 by primary mixes material conveying tube road 2 and is settled, and is obtained
Slurry and level-one leaching liquid are settled to level-one.Obtained finished product barium sulfide solution is from primary settler 18 with 39.5t/h's
Speed is extracted as finished product, and 39.5t contains 4.5t barium sulphides and 35t water.
(3) the level-one sedimentation slurry to settle down settles slurry conveying pipeline 3 with 12t/h (wherein, 12t mono- by level-one
Grade sedimentation slurry includes the barium sulphide and 3.5t insoluble matters that 6.5t water, the 0.8t barium sulphide, the 1.2t that are leached are not leached) speed
Degree is delivered to two level leacher 19, while leaching water inlet pipe road 29 with the speed of 15t/h to two level leacher 19 by two level
Middle about 90 DEG C of two levels of input leach water.Level-one is settled into slurry using the second blender 25 and two level leaching water is uniformly mixed and carries out
Two level leaches, and obtains two-stage mixture material.
Two-stage mixture material is delivered in two level settler 20 by two-stage mixture material conveying tube road 4 and is settled, and is obtained
Slurry and two level leaching liquid are settled to two level.Two level leaching liquid is returned by two level leaching liquid conveyance conduit 12 with the speed of 23t/h
It is back in level-one leacher 17 together with level-one leaching water for leaching barium sulphide grey black, wherein 23t contains 1.5t barium sulphides
With 21.5t water.
(4) the two level sedimentation slurry to settle down settles slurry conveying pipeline 5 with 6.8t/h (wherein, 6.8t by two level
The slurry includes the barium sulphide and 3.5t insoluble matters that 2.8t water, the 0.2t barium sulphide, the 0.3t that are leached are not leached) speed it is defeated
It send to three-level leacher 21, while defeated into three-level leacher 21 with the speed of 0.4t/h by three-level leaching water inlet pipe road 9
Enter about 90 DEG C of three-level leaching water.Two level sedimentation slurry is uniformly mixed with three-level leaching water using third blender 26 and carries out three-level
Leaching, obtains three-level mixed material.
Three-level mixed material is delivered in three-level settler 22 by three-level mixed material conveyance conduit 6 and is settled, and is obtained
Slurry and three-level leaching liquid are settled to three-level.Three-level leaching liquid is returned by three-level leaching liquid conveyance conduit 10 with the speed of 2.8t/h
It is back in two level leacher 19 and leaches workshop section for two level together with two level leaching water.
(5) three-level sedimentation slurry settles slurry output channel 7 by three-level and is delivered to dewatering and filtering with the speed of 5.2t/h
Device 23 is carried out dehydrating, and obtained filtrate is recycled to three-level leacher 21 through filtered fluid recovery channel 8 with the speed of 0.8t/h
With together with three-level leaching water workshop section is leached for three-level.By dehydrator filter 23 processing residue concentrate after send to solid slag field into
Row processing.
Embodiment 2：Strontium sulfide leaches
(1) it is 5mm that the strontium mine exploited from mining site is crushed to grain size through pulverizer, is delivered to rotary kiln and is roasted at about 1300 DEG C
1 hour obtained strontium sulfide grey black (barium sulphide content is 52wt%) of reduction, is then cooled to 100 DEG C in case follow-up leaching uses.
(2) level-one leacher 17 is delivered to the speed of 10t/h by coarse fodder input channel 1 through overcooled strontium sulfide grey black
In, about 90 DEG C of level-one leaching water are leached water inlet pipe road 30 by level-one and are delivered in level-one leacher 17 with the speed of 35t/h,
Strontium sulfide grey black is uniformly mixed with level-one leaching water using the first blender 24 and carries out level-one leaching, obtains primary mixes
Material.
Primary mixes material is delivered in primary settler 18 by primary mixes material conveying tube road 2 and is settled, and is obtained
Slurry and level-one leaching liquid are settled to level-one.Obtained finished product strontium sulfide aqueous solution is from primary settler 18 with the speed of 61t/h
Degree is extracted as finished product, and 61t contains 4t strontium sulfides and 57t water.
(3) the level-one sedimentation slurry to settle down settles slurry conveying pipeline 3 with 10t/h (wherein, 10t mono- by level-one
Grade sedimentation slurry includes the strontium sulfide and 4.8t insoluble matters that 4t water, the 0.2t strontium sulfide, the 1t that are leached are not leached) speed it is defeated
It send to two level leacher 19, while water inlet pipe road 29 is leached with the speed of 13.3t/h into two level leacher 19 by two level
About 90 DEG C of two levels of input leach water.Level-one is settled into slurry using the second blender 25 and two level leaching water is uniformly mixed and carries out two
Grade leaching, obtains two-stage mixture material.
Two-stage mixture material is delivered in two level settler 20 by two-stage mixture material conveying tube road 4 and is settled, and is obtained
Slurry and two level leaching liquid are settled to two level.Two level leaching liquid is returned by two level leaching liquid conveyance conduit 12 with the speed of 26t/h
Be back in level-one leacher 17 together with level-one leaching water for leaching strontium sulfide grey black, wherein 26t contain 1t strontium sulfides and
25t water.
(4) the two level sedimentation slurry to settle down settles slurry conveying pipeline 5 with 7.5t/h (wherein, 7.5t by two level
Two level sedimentation slurry includes 2.6t water, 0.1t strontium sulfide, the 0.1t leached the strontium sulfides not leached and 4.8t insoluble matters)
Speed is delivered to three-level leacher 21, while leaching water inlet pipe road 9 with the speed of 8t/h to three-level leacher 21 by three-level
Middle about 90 DEG C of three-levels of input leach water.Two level sedimentation slurry is uniformly mixed progress with three-level leaching water using third blender 26
Three-level leaches, and obtains three-level mixed material.
Three-level mixed material is delivered in three-level settler 22 by three-level mixed material conveyance conduit 6 and is settled, and is obtained
Slurry and three-level leaching liquid are settled to three-level.Three-level leaching liquid is by three-level leaching liquid conveyance conduit 10 with the speed of 10.2t/h
It is back in two level leacher 19 and leaches workshop section for two level together with two level leaching water.
(5) three-level sedimentation slurry settles slurry output channel 7 by three-level and is delivered to dewatering and filtering with the speed of 5.5t/h
Device 23 is carried out dehydrating, and obtained filtrate is recycled to three-level leacher 21 through filtered fluid recovery channel 8 with the speed of 0.2t/h
With together with three-level leaching water workshop section is leached for three-level.By dehydrator filter 23 processing residue concentrate after send to solid slag field into
Row processing.
The above embodiment is a preferred embodiment of the present invention, but the embodiment of present aspect is not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by substitute, modification, combination, change, simplify
Deng should be equivalent substitute mode, be included within the scope of the present invention.
Claims (15)
1. a kind of leaching method of alkaline earth sulfide, which is characterized in that including：
(1) it is 10 according to weight ratio by alkaline earth sulfide coarse fodder and level-one leaching water: (20.1-40.2) is delivered to one respectively
It is uniformly mixed in grade leacher (17) and carries out level-one leaching, obtain primary mixes material；
(2) primary mixes material is delivered in primary settler (18) and is settled, obtain level-one sedimentation slurry and level-one leaching
Take liquid；
(3) level-one leaching liquid is collected to get alkaline earth sulfide solution.
2. leaching method according to claim 1, which is characterized in that further comprise：
(4) it is 10 according to weight ratio with two level leaching water by level-one sedimentation slurry: (19-38) is delivered to two level leacher respectively
(19) it is uniformly mixed in and carries out two level leaching, obtain two-stage mixture material；
(5) two-stage mixture material is delivered in two level settler (20) and is settled, obtain two level sedimentation slurry and two level leaching
Take liquid；
(6) two level leaching liquid is collected, alternatively, two level leaching liquid is delivered to level-one leacher (17).
3. leaching method according to claim 2, which is characterized in that further comprise：
(7) it is 10 according to weight ratio with three-level leaching water by two level sedimentation slurry: (25-35) is delivered to three-level leacher respectively
(21) it is uniformly mixed in and carries out three-level leaching, obtain three-level mixed material；
(8) three-level mixed material is delivered in three-level settler (22) and is settled, obtain three-level sedimentation slurry and three-level leaching
Take liquid；
(9) three-level leaching liquid is delivered to two level leacher (19) or level-one leacher (17).
4. leaching method according to claim 3, which is characterized in that three-level settle slurry by dehydrator filter (23) into
Row filtering means dehydration, obtained filtrate are delivered to three-level leacher (21).
5. according to claim 1-4 any one of them leaching methods, which is characterized in that the alkaline earth sulfide is vulcanization
Strontium and/or barium sulphide.
6. according to claim 1-4 any one of them leaching methods, which is characterized in that in step (1), alkaline earth sulfide
Coarse fodder is obtained using following methods：Alkaline-earth metal ore is crushed to≤5mm, is subsequently delivered to rotary kiln at 900 DEG C -1300 DEG C
Roasting 1-3 hours, is then cooled to 50-200 DEG C.
7. according to claim 1-4 any one of them leaching methods, which is characterized in that level-one leach water, two level leaching water and
Three-level leaching water is the hot water that temperature is 65 DEG C -95 DEG C.
8. a kind of leaching device of alkaline earth sulfide, which is characterized in that including：The level-one leacher being arranged from top to bottom
(17) and primary settler (18)；Coarse fodder input channel (1) and level-one leaching water inlet pipe are provided on level-one leacher (17)
Road (30)；Level-one leacher (17) is internally provided with the first blender (24)；Level-one leacher (17) and primary settler (18)
It is connected by primary mixes material conveying tube road (2), one end setting in primary mixes material conveying tube road (2) is leached in level-one
The bottom of device (17), the other end are arranged on the top of primary settler (18)；Primary settler is provided with first class product on (18)
Output channel (16).
9. leaching device according to claim 8, which is characterized in that further comprise：The two level leaching being arranged from top to bottom
Take device (19) and two level settler (20)；Two level leacher (19) settles slurry conveying pipeline (3) by level-one and is settled with level-one
Device (18) is connected, and level-one settles the setting of slurry conveying pipeline (3) one end in the bottom of primary settler (18), other end setting
Top in two level leacher (19)；Two level leaching water inlet pipe road (29) is provided on two level leacher (19)；Two level leaches
Device (19) is internally provided with the second blender (25)；Two level leacher (19) and two level settler (20) pass through two-stage mixture material
Conveyance conduit (4) is connected, and the one end in two-stage mixture material conveying tube road (4) is arranged in the bottom of two level leacher (19), separately
One end is arranged on the top of two level settler (20)；Be provided on two level settler (20) two level leaching liquid conveyance conduit (12) and
Secondary product output channel (15).
10. leaching device according to claim 9, which is characterized in that further comprise：The three-level leaching being arranged from top to bottom
Take device (21) and three-level settler (22)；Three-level leacher (21) settles slurry conveying pipeline (5) by two level and is settled with two level
Device (20) is connected, and two level settles the setting of slurry conveying pipeline (5) one end in the bottom of two level settler (20), other end setting
Top in three-level leacher (21)；Three-level leaching water inlet pipe road (9) is provided on three-level leacher (21)；Three-level leacher
(21) it is internally provided with third blender (26)；Three-level leacher (21) and three-level settler (22) are defeated by three-level mixed material
Pipeline (6) is sent to be connected, the setting of one end of three-level mixed material conveyance conduit (6) is another in the bottom of three-level leacher (21)
Top of the end setting in three-level settler (22)；Three-level leaching liquid conveyance conduit (10) and three are provided on three-level settler (22)
Grade sedimentation slurry output channel (7).
11. leaching device according to claim 10, which is characterized in that further comprise：Dehydrator filter (23)；Dehydration
Filter (23) settles slurry output channel (7) by three-level and is connected with three-level settler (22)；On dehydrator filter (23)
It is additionally provided with filtrate recovery channel (8), for filtrate to be recycled to three-level leacher (21).
12. according to claim 9-11 any one of them leaching devices, which is characterized in that two level leaching liquid conveyance conduit (12)
One end is arranged on two level settler (20), and the other end is arranged on level-one leacher (17), is used for two level leaching liquid by two
Grade settler (20) is delivered to level-one leacher (17).
13. the leaching device according to claim 10 or 11, which is characterized in that three-level leaching liquid conveyance conduit (10) one end
It is arranged on three-level settler (22), the other end is arranged on two level leacher (19), for three-level leaching liquid to be sunk by three-level
Drop device (22) is delivered to two level leacher (19).
14. the leaching device according to claim 10 or 11, which is characterized in that three-level leaching liquid conveyance conduit (10) one end
It is arranged on three-level settler (22), the other end is arranged on level-one leacher (17), for three-level leaching liquid to be sunk by three-level
Drop device (22) is delivered to level-one leacher (17).
15. leaching device according to claim 10, which is characterized in that level-one leacher (17), primary settler (18),
Two level leacher (19), two level settler (20), three-level leacher (21) and three-level settler (22) outer wall guarantor is respectively set
Adiabator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810808755.2A CN108793086A (en) | 2018-07-23 | 2018-07-23 | The leaching method and leaching device of alkaline earth sulfide |
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|---|---|---|---|
| CN201810808755.2A CN108793086A (en) | 2018-07-23 | 2018-07-23 | The leaching method and leaching device of alkaline earth sulfide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114939286A (en) * | 2022-07-05 | 2022-08-26 | 广西来宾市国宏钙业科技有限公司 | Continuous leaching device |
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Application publication date: 20181113 |