CN106310990A - Slurry preparation device and preparation method of magnesium hydroxide slurry - Google Patents
Slurry preparation device and preparation method of magnesium hydroxide slurry Download PDFInfo
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- CN106310990A CN106310990A CN201610976498.4A CN201610976498A CN106310990A CN 106310990 A CN106310990 A CN 106310990A CN 201610976498 A CN201610976498 A CN 201610976498A CN 106310990 A CN106310990 A CN 106310990A
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- ejector
- outlet
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- 239000002002 slurry Substances 0.000 title claims abstract description 192
- 238000002360 preparation method Methods 0.000 title claims abstract description 56
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 title claims abstract description 30
- 239000000347 magnesium hydroxide Substances 0.000 title claims abstract description 29
- 229910001862 magnesium hydroxide Inorganic materials 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 67
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 36
- 239000000395 magnesium oxide Substances 0.000 claims description 34
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 34
- 239000011440 grout Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 5
- 239000013535 sea water Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 238000003860 storage Methods 0.000 abstract description 6
- 239000012254 powdered material Substances 0.000 abstract 1
- 230000036632 reaction speed Effects 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000001095 magnesium carbonate Substances 0.000 description 3
- 235000014380 magnesium carbonate Nutrition 0.000 description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 241001131796 Botaurus stellaris Species 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/51—Methods thereof
- B01F23/511—Methods thereof characterised by the composition of the liquids or solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/70—Pre-treatment of the materials to be mixed
- B01F23/711—Heating materials, e.g. melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
- B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2111—Flow rate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2117—Weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/883—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using flow rate controls for feeding the substances
-
- 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
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2204—Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention provides a slurry preparation device. The slurry preparation device comprises a storage bin and a slurry cabinet, wherein the storage bin comprises a storage bin body and a feeding hole and a discharging hole which are formed in the storage bin body; the slurry cabinet comprises a cabinet body, and a slurry inlet, a liquid inlet and a liquid outlet which are formed in the cabinet body; the slurry preparation device further comprises a jet device, and the jet device is provided with a feeding hole, a slurry inlet and a slurry outlet; the feeding hole of the jet device is connected with the discharging hole of the storage bin; the slurry outlet of the jet device is connected with the slurry inlet of the slurry cabinet; the slurry inlet of the jet device is connected with the liquid outlet of the slurry cabinet through a power pump; and the slurry cabinet further comprises a slurry outlet, and the slurry outlet is communicated with a connecting pipeline between the liquid outlet of the slurry cabinet and the slurry inlet of the jet device through a switch valve. A preparation method of magnesium hydroxide slurry adopts the jet device so that automatic suction of powdered materials is rapidly realized, and the jet device is matched with the power pump so that self-circulation of a slurry preparation process is realized; and a preparation speed, a reaction speed and a conversion rate of the slurry can be extremely improved. The device is small in occupied area and rapid in reaction and can realize continuous reaction.
Description
Technical field
The invention belongs to chemical sizwe preparing technical field, relate to a kind of slurry preparation device and use this device to carry out hydrogen
Preparation method prepared by magnesium oxide slurry.
Background technology
Chemical sizwe all can be used in a lot of fields, and its common ground is, by the mixing of chemical raw material Yu reagent, by chemistry
The dissolving of raw material and reagent or reaction, prepare slurry, multi-field for production, exhaust-gas treatment etc..
As a example by exhaust-gas treatment field.Atmospheric pollution mostly come from industrial processes and transport process discharge
Waste gas, major pollutants have carbon monoxide, nitrogen oxides, hydrocarbons, oxysulfide etc..For making waste gas reach discharge standard,
Need to use exhaust gas treating agent before waste gas discharges, it to be processed.
Magnesium hydroxide belongs to weak base, has the advantages such as buffer capacity is strong, excellent adsorption, corrosivity are low, safe and reliable, its slurry
Material has good fluidity, easily conveying and storage, is widely used in acid-bearing wastewater and processes, heavy metal removing agent, sulfur-containing smoke gas desulfurizing agent
Use.
Environmental protection magnesium hydroxide slurry production method has dolomite method, sea water bittern and alkali reaction, shepardite method and magnesite
Ore deposit method.Dolomite method separating calcium and magnesium is not thorough, and purity is relatively low；It is the highest, relatively costly etc. to there is purity in sea water bittern and alkali reaction
Problem；Shepardite method is relatively simple, but this Ore content in nature is less；Most study is exactly magnesite at present
Method, the method, with magnesite as primary raw material, is made activated magnesia through calcining, then with aquation, it is synthesized magnesium hydroxide.
Be most commonly used that the mode using light calcined magnesia aquation prepares magnesium hydroxide at present, aquation generally by having stirred,
Time 24h, usual aquation rate 60～70%.
The total problem that this current slurry preparation field exists: longer hydration time, common magnesium oxide aquation system
Standby magnesium hydroxide be generally batch (-type), reaction vessel volume compared with big, hydration efficiency is relatively low, aquation rate is the highest.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of slurry preparation device, and based on this device
There is provided a kind of lasting, efficient, quickly prepare magnesium hydroxide method.
The technical scheme is that slurry preparation device, including feed bin and slurry cabinet, described feed bin includes feed bin body
And the charging aperture that is arranged on and discharging opening；Described slurry cabinet includes cabinet body and the stock inlet being arranged on, liquid inlet
And liquid outlet；It is characterized in that: also include ejector, be provided with charging aperture, stock inlet and grout outlet, ejector charging aperture
Splicing bin discharge port external, ejector grout outlet connects slurry cabinet stock inlet, and ejector stock inlet connects slurry cabinet liquid outlet through kinetic pump；Slurry
Material cabinet also includes grout outlet, grout outlet connecting line phase between switch valve with slurry cabinet liquid outlet and ejector stock inlet
Logical.
Preferably；Also include vapor heat exchanger, be provided with liquid outlet, steam inlet, inlet and steam (vapor) outlet,
The liquid outlet of vapor heat exchanger connects with the liquid inlet of slurry cabinet.
Preferably: be provided with at feed bin discharge hole for weighing the weight sensor adding weight of material；Slurry cabinet enters
It is provided with at liquid mouth for measuring the flow transducer adding fluid flow.
Method prepared by magnesium hydroxide slurry, comprises the following steps:
Closing switch valve, continues to add magnesium oxide through feed bin charging aperture, and slurry cabinet liquid inlet adds reagent water, opens power
Pump；
Reagent water is flowed out slurry cabinet through kinetic pump by slurry cabinet liquid outlet, by ejector stock inlet inflow ejector, then by
Ejector grout outlet flows back to slurry cabinet, meanwhile, the magnesium oxide in feed bin 1 is sucked ejector；
After reagent water mixes in ejector with magnesium oxide, flow into slurry via ejector grout outlet, slurry cabinet stock inlet
Cabinet, during formed slurry；
Subsequently, magnesium oxide continues to enter ejector charging aperture through feed bin discharge hole, and slurry footpath kinetic pump is gone out liquid by slurry cabinet
Mouth flows out slurry cabinet, ejector stock inlet flow into ejector；After magnesium oxide slurry mixes in ejector with magnesium oxide, flow into
Slurry cabinet；So circulate preparation, obtain magnesium hydroxide slurry；
Stop in slurry cabinet, adding magnesium oxide and adding reagent water to slurry cabinet, open switch valve, take out magnesium hydroxide
Slurry.
Preferably: slurry preparation device also includes vapor heat exchanger, it is provided with liquid outlet, steam inlet, feed liquor
Mouth and steam (vapor) outlet, the liquid outlet of vapor heat exchanger connects with the liquid inlet of slurry cabinet；Reagent water is through vapor heat exchanger inlet
Flow into vapor heat exchanger, steam is accessed vapor heat exchanger through steam inlet simultaneously；After reagent water and steam heat-exchanging, via steam
The liquid outlet of heat exchanger, slurry cabinet liquid inlet flow into slurry cabinet.
Preferably: after reagent water and steam heat-exchanging, reagent water temperature is 80 DEG C.
Preferably: be provided with at feed bin discharge hole for weighing the weight sensor adding weight of material；Slurry cabinet enters
It is provided with at liquid mouth for measuring the flow transducer adding fluid flow；Control to add the oxygen of slurry cabinet by weight sensor
Change weight m of magnesium1, control to add weight m of the reagent water of slurry cabinet by flow transducer2。
Preferably: circulation preparation time is 10～20min.
Preferably: reagent water is fresh water or sea water.
The invention have the benefit that
(1) the invention provides a kind of slurry preparation device, can be used for the preparation of multiple solid-liquid mixed slurry.
(2) apparatus and method that the present invention provides, use ejector to realize quickly realizing being automatically drawn into of powder, ejector
Coordinate kinetic pump to realize the self-loopa in slurry preparation process, can greatly improve the preparation speed of slurry, reaction rate and turn
Rate.
(3) this plant area area is little, and reaction is quick, and sustainable reaction is particularly suited for the spaces such as boats and ships desulphurization system
Limited environment, for the preparation of the desulfurization slurry of desulphurization system, can be used for the multi-field magnesium hydroxide slurry in land simultaneously
Preparation.
Accompanying drawing explanation
Fig. 1 is slurry preparation device structural representation.
Wherein: 1-feed bin, 11-feed bin charging aperture, 12-feed bin discharge hole, 2-ejector, 21-ejector charging aperture, 22-
Ejector stock inlet, 23-ejector grout outlet, 3-slurry cabinet, 31-slurry cabinet liquid inlet, 32-slurry cabinet stock inlet, 33-slurry
Cabinet liquid outlet, 34-slurry cabinet grout outlet, 4-vapor heat exchanger, 41-vapor heat exchanger liquid outlet, 42-steam inlet, 43-steam
Heat exchanger inlet, 44-steam (vapor) outlet, 5-kinetic pump, 6-switch valve
Detailed description of the invention
Below with reference to accompanying drawing, the detailed description of the invention of the present invention is conducted further description.
As it is shown in figure 1, slurry preparation device, including feed bin 1 and slurry cabinet 3, feed bin 1 includes feed bin body and is arranged at it
On charging aperture 11 and discharging opening 12；Feed bin 1 is used for depositing prepares slurry material.Slurry cabinet 3 includes cabinet body and is arranged at
Stock inlet 32 thereon, liquid inlet 31 and liquid outlet 33；Slurry cabinet 3 is reaction cabinet and the storing compartment preparing slurry.
Slurry preparation device also includes ejector 2, is provided with charging aperture 21, stock inlet 22 and grout outlet 23, jet
Device charging aperture 21 splicing bin discharge port external 12, ejector grout outlet 23 connects slurry cabinet stock inlet 32, and ejector stock inlet 22 is through power
Pump 5 connects slurry cabinet liquid outlet 33；Slurry cabinet 3 also includes grout outlet 34, grout outlet 34 through switch valve 6 and slurry cabinet liquid outlet 33 with
Connecting line between ejector stock inlet 22 communicates.
Specifically, between feed bin discharge hole 12 and ejector charging aperture 21, ejector grout outlet 23 enters slurry with slurry cabinet
Between mouthfuls 32, ejector stock inlet 22 all connected by pipeline between slurry cabinet liquid outlet 33, wherein, kinetic pump 5 sets
Put on the connecting line between ejector stock inlet 22 and slurry cabinet liquid outlet 33.
In slurry preparation process, slurry cabinet liquid inlet 31 directly can be connect reagent water source, be passed through reagent to slurry cabinet 3 inside
Water.But it is considered that the preparation of some slurry, the temperature of reagent water is had requirement, accordingly, as another embodiment, slurry
Material preparation facilities still further comprises vapor heat exchanger 4, is provided with liquid outlet 41, steam inlet 42, inlet 43 and steams
Vapor outlet 44, the liquid outlet 41 of vapor heat exchanger connects with the liquid inlet 31 of slurry cabinet.Specifically, vapor heat exchanger go out liquid
It is connected through pipeline between mouth 41 and the liquid inlet 31 of slurry cabinet.
Slurry material and the purpose of reagent water ratio is prepared, at feed bin discharge hole 12 in order to be further able to realize control
It is provided with for weighing the weight sensor adding weight of material；It is provided with for measuring addition liquid at slurry cabinet liquid inlet 31
The flow transducer of flow.
Slurry preparation device can be used for the preparation of multiple solid-liquid mixed slurry.
Hereinafter, by as a example by the preparation of magnesium hydroxide slurry, illustrate to use above-mentioned slurry preparation device to carry out hydroxide
Method prepared by magnesium slurry, the primary raw material preparing magnesium hydroxide is magnesium oxide and reagent water, comprises the following steps:
Closing switch valve 6, continues to add magnesium oxide through feed bin charging aperture 11, and slurry cabinet liquid inlet 31 adds reagent water, beats
Drive kinetic pump 5；Closing switch valve 6 i.e. closes the path between slurry cabinet 3 and the external world, and the slurry in preparation will not flow out slurry
Cabinet 3.
Initial, reagent water is flowed out slurry cabinet 3 through kinetic pump 5 by slurry cabinet liquid outlet 33, ejector stock inlet 22 flow into
Ejector 2, then have ejector grout outlet 23 to flow back to slurry cabinet 3, meanwhile, the magnesium oxide in feed bin is sucked ejector 2；Prepare it
Just, the reagent water being only passed through in slurry cabinet 3, therefore, via kinetic pump flow into ejector 2 for reagent water.Reagent water passes through
Ejector 2 flows back to the process of slurry cabinet 3, forms negative pressure, sucked by pipeline from feed bin 1 by magnesium oxide powder in ejector 2
Ejector 2, mixes with reagent water in ejector 2.
After reagent water mixes in ejector 2 with magnesium oxide, flow into via ejector grout outlet 23, slurry cabinet stock inlet 32
Slurry cabinet 3, during formed slurry；In the process, magnesium oxide mixes with reagent water, and magnesium oxide is dissolved in reagent water, because of
This forms slurry.
Subsequently, magnesium oxide continues to enter ejector charging aperture 21 through feed bin discharge hole 12, and slurry footpath kinetic pump 5 is by slurry cabinet
Liquid outlet 33 flows out slurry cabinet 3, ejector stock inlet 22 flow into ejector 2；Magnesium oxide slurry and magnesium oxide are in ejector 2
After mixing, flow into slurry cabinet 3；It is thusly-formed a self-loopa, circulation preparation, obtains magnesium hydroxide slurry；Due to magnesium oxide and examination
After agent water contacts in ejector 2, prepare slurry in the middle of formation, feed back to slurry cabinet 3 subsequently, with newly entering slurry cabinet 3 cabinet
Reagent water mixes further, therefore, again from slurry cabinet 3 enter ejector 2 for slurry rather than reagent water.
Stop adding magnesium oxide to slurry cabinet 3, adding reagent water to slurry cabinet 3, open switch valve 5, take out magnesium hydroxide
Slurry.
Directly can be connected to desulphurization system by the road by switch valve 5, directly the magnesium hydroxide slurry prepared is used for
The use of desulphurization system.
Owing to temperature improves improving magnesium oxide dissolving in reagent water and response speed, for improving hydroxide further
The preparation speed of magnesium slurry, a kind of more excellent magnesium hydroxide slurries preparation method for material is as follows:
Slurry preparation device also includes vapor heat exchanger 4, is provided with liquid outlet 41, steam inlet 42, inlet 43
With steam (vapor) outlet 44, the liquid outlet 41 of vapor heat exchanger connects with the liquid inlet 31 of slurry cabinet；Reagent water enters through vapor heat exchanger
Liquid mouth 43 flows into vapor heat exchanger 4, through steam inlet 42, steam is accessed vapor heat exchanger 4 simultaneously；Reagent water and steam heat-exchanging
After, flow into slurry cabinet 3 via liquid outlet 41, the slurry cabinet liquid inlet 31 of vapor heat exchanger.Room temperature reagent water is through vapor heat exchanger 4
After, with vapours heat exchange, the steam after heat exchange is discharged through steam (vapor) outlet 44.
After a kind of concrete enforcement, reagent water and steam heat-exchanging, reagent water temperature is 80 DEG C.Can be passed through by control
The temperature of steam, the mode of the flow adding reagent water realize controlling the purpose of reagent water temperature.
If magnesium oxide is the best with the mixed proportion of reagent water, it will cause worth slurry cross dilute or cross thickness, after impact
The use of continuous slurry.Therefore, the structure controlling magnesium oxide with reagent water addition quality can be designed for further.
It is provided with at feed bin discharge hole 12 for weighing the weight sensor adding weight of material；At slurry cabinet liquid inlet 31
It is provided with for measuring the flow transducer adding fluid flow；Control to add the magnesium oxide of slurry cabinet 3 by weight sensor
Weight m1, control to add weight m of the reagent water of slurry cabinet 3 by flow transducer2, make m2:m1=10:1.Wherein reagent
The weight of water can be converted by the density of reagent water and flow, reaches to control reagent water weight by the purpose controlling flow
Purpose.It should be noted that m1And m2It is not limited to above ratio, as required, it is possible to use other mass ratio.
In order to promote the abundant dissolving of magnesium oxide, realize quickly preparing the purpose of magnesium hydroxide slurry, in addition it is also necessary to enter simultaneously
One step controls the time of circulation preparation, specific as follows:
In the first embodiment, the time of circulation preparation is 10 minutes.
In the second embodiment, the time of circulation preparation is 15 minutes.
In the third embodiment, the time of circulation preparation is 20 minutes.
In the preparation method of any of the above magnesium hydroxide slurry, reagent water all can use fresh water or sea water, it would however also be possible to employ
The reagent water of other easily prepared magnesium hydroxide slurries.
Claims (9)
1. slurry preparation device, including feed bin (1) and slurry cabinet (3), described feed bin (1) includes feed bin body and is arranged on
Charging aperture (11) and discharging opening (12)；Described slurry cabinet (3) includes cabinet body and the stock inlet (32) being arranged on, enters liquid
Mouth (31) and liquid outlet (33)；It is characterized in that: also include ejector (2), be provided with charging aperture (21), stock inlet (22)
With grout outlet (23), ejector charging aperture (21) splicing bin discharge port external (12), ejector grout outlet (23) connects slurry cabinet stock inlet
(32), ejector stock inlet (22) connects slurry cabinet liquid outlet (33) through kinetic pump (5)；Slurry cabinet (3) also includes grout outlet (34),
The grout outlet (34) connecting line between switch valve (6) with slurry cabinet liquid outlet (33) with ejector stock inlet (22) communicates.
2. slurry preparation device as claimed in claim 1, it is characterised in that: also include vapor heat exchanger (4), be provided with
Liquid outlet (41), steam inlet (42), inlet (43) and steam (vapor) outlet (44), the liquid outlet (41) of vapor heat exchanger and slurry
The liquid inlet (31) of cabinet connects.
3. slurry preparation device as claimed in claim 1 or 2, it is characterised in that: feed bin discharge hole (12) place be provided with for
Weigh the weight sensor adding weight of material；Slurry cabinet liquid inlet (31) place is provided with for measuring the stream adding fluid flow
Quantity sensor.
4. use slurry preparation device described in claim 1 to carry out method prepared by magnesium hydroxide slurry, it is characterised in that to include
Following steps:
Closing switch valve (6), continues to add magnesium oxide through feed bin charging aperture (11), and slurry cabinet liquid inlet (31) adds reagent water,
Open kinetic pump (5)；
Initial, reagent water is flowed out slurry cabinet (3) through kinetic pump (5) by slurry cabinet liquid outlet (33), by ejector stock inlet (22)
Flow into ejector (2), then flowed back to slurry cabinet (3) by ejector grout outlet (23), meanwhile, the magnesium oxide in feed bin 1 is sucked and penetrates
Stream device (2)；
After reagent water mixes in ejector (2) with magnesium oxide, via ejector grout outlet (23), slurry cabinet stock inlet (32) stream
Enter slurry cabinet (3), during formed slurry；
Subsequently, magnesium oxide continues to enter ejector charging aperture (21) through feed bin discharge hole (12), and slurry footpath kinetic pump (5) is by slurry
Cabinet liquid outlet (33) flows out slurry cabinet (3), ejector stock inlet (22) flow into ejector (2)；Magnesium oxide slurry and magnesium oxide
In ejector (2) after mixing, flow into slurry cabinet (3)；So circulate preparation, obtain magnesium hydroxide slurry；
Stop adding magnesium oxide to slurry cabinet (3) and adding reagent water to slurry cabinet (3), open switch valve (5), take out hydroxide
Magnesium slurry.
5. slurry preparation device as claimed in claim 4 carries out method prepared by magnesium hydroxide slurry, it is characterised in that slurry
Preparation facilities also includes vapor heat exchanger (4), is provided with liquid outlet (41), steam inlet (42), inlet (43) and steams
Vapor outlet (44), the liquid outlet (41) of vapor heat exchanger connects with the liquid inlet (31) of slurry cabinet；Reagent water is through vapor heat exchanger
Inlet (43) flows into vapor heat exchanger (4), through steam inlet (42), steam is accessed vapor heat exchanger (4) simultaneously；Reagent water
After steam heat-exchanging, flow into slurry cabinet (3) via liquid outlet (41), slurry cabinet liquid inlet (31) of vapor heat exchanger.
6. slurry preparation device as claimed in claim 5 carries out method prepared by magnesium hydroxide slurry, it is characterised in that reagent
After water and steam heat-exchanging, reagent water temperature is 80 DEG C.
7. the slurry preparation device as described in claim 4 or 5 carries out method prepared by magnesium hydroxide slurry, it is characterised in that
Feed bin discharge hole (12) place is provided with for weighing the weight sensor adding weight of material；Slurry cabinet liquid inlet (31) place is arranged
Have for measuring the flow transducer adding fluid flow；The magnesium oxide of addition slurry cabinet (3) is controlled by weight sensor
Weight, controls to add the weight of the reagent water of slurry cabinet (3) by flow transducer.
8. the slurry preparation device as described in claim 4 or 5 carries out method prepared by magnesium hydroxide slurry, it is characterised in that
Described circulation preparation time is 10～20min.
9. the slurry preparation device as described in claim 4 or 5 carries out method prepared by magnesium hydroxide slurry, it is characterised in that
Described reagent water is fresh water or sea water.
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| CN201610976498.4A CN106310990A (en) | 2016-11-03 | 2016-11-03 | Slurry preparation device and preparation method of magnesium hydroxide slurry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976498.4A CN106310990A (en) | 2016-11-03 | 2016-11-03 | Slurry preparation device and preparation method of magnesium hydroxide slurry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111068537A (en) * | 2020-01-17 | 2020-04-28 | 大庆伟达石油科技有限公司 | Two-stage jet flow dispersing and dissolving device and dispersing and dissolving method thereof |
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| CN203919374U (en) * | 2013-12-31 | 2014-11-05 | 浙江索纳塔建筑材料有限公司 | A kind of modified form Full-automatic aluminum powder slurry injection device for autoclaved aerated concrete block |
| CN205084598U (en) * | 2015-10-09 | 2016-03-16 | 威海普益船舶环保科技有限公司 | Desulfurizer storage, transport and mixing arrangement |
| CN206152662U (en) * | 2016-11-03 | 2017-05-10 | 威海普益船舶环保科技有限公司 | Thick liquids preparation facilities |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203919374U (en) * | 2013-12-31 | 2014-11-05 | 浙江索纳塔建筑材料有限公司 | A kind of modified form Full-automatic aluminum powder slurry injection device for autoclaved aerated concrete block |
| CN205084598U (en) * | 2015-10-09 | 2016-03-16 | 威海普益船舶环保科技有限公司 | Desulfurizer storage, transport and mixing arrangement |
| CN206152662U (en) * | 2016-11-03 | 2017-05-10 | 威海普益船舶环保科技有限公司 | Thick liquids preparation facilities |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111068537A (en) * | 2020-01-17 | 2020-04-28 | 大庆伟达石油科技有限公司 | Two-stage jet flow dispersing and dissolving device and dispersing and dissolving method thereof |
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