CN102781566A - Reactor and a method of purifying a process solution - Google Patents

Reactor and a method of purifying a process solution Download PDF

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CN102781566A
CN102781566A CN2011800122179A CN201180012217A CN102781566A CN 102781566 A CN102781566 A CN 102781566A CN 2011800122179 A CN2011800122179 A CN 2011800122179A CN 201180012217 A CN201180012217 A CN 201180012217A CN 102781566 A CN102781566 A CN 102781566A
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reactor
solution
fluid bed
hybrid component
solid matter
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CN102781566B (en
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J·瓦尔诺
M·劳娜拉
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Metso Outotec Oyj
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Outokumpu Technology Oyj
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
    • B01J8/382—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it with a rotatable device only
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • C22B19/26—Refining solutions containing zinc values, e.g. obtained by leaching zinc ores
    • 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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/86—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis co-operating with deflectors or baffles fixed to the receptacle
    • B01F27/861—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis co-operating with deflectors or baffles fixed to the receptacle the baffles being of cylindrical shape, e.g. a mixing chamber surrounding the stirrer, the baffle being displaced axially to form an interior mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/91—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/20—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B17/00—Obtaining cadmium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/02—Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • C22B3/46—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes by substitution, e.g. by cementation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention relates to a method and a reactor for purifying solid matter from the process solution (2) in the fluidized bed in the reactor, into which the process solution is fed to form the fluidized bed (4) in the essentially cylindrical reaction part (3) that is the lowermost part in the reactor, from which bed the flow further moves to the calming part (5) that expands conically upwards from the upper part of the reactor part and, further, to the cylindrical clarification part (6) that is connected to the upper part of the same, the diameter of the clarification part being the same as the upper part of the calming part, whereby at least part of the solution (2) that is fed into the reactor (1) is circulated to the fluidized bed (3) more than once, and that the amount of circulating solution is controlled in the fluidized bed by means of the mixing member (12) placed in the reactor.

Description

The reactor of purification of process solutions and method
Technical field
The present invention relates to be used for the equipment and the method that limit in the independent claims 1 and 11 of purification of process solutions (process solution).
Background technology
Usually, stirred reactor is columniform and they have normal diameter.Typically, they are provided with flow resistance, and said flow resistance is connected to the wall of reactor and its objective is elimination center turbulent flow, and are that this center turbulent flow is considered to be harmful to and absorb gas from the surface.Solid-solution process needs to mix usually, strong turbulent flow and circulation fully in this mixes, occur.Important process is removing of the cadmium through displacement for example.Cadmium is harmful substance a kind of in the electrolytic process of zinc.
Supply in the stirred reactor is mainly carried out through from the top solid matter and solution being supplied to the reaction compartment.Usually, in continuous reactor, hope the approximate slurry density effusion of solid matter and solution with reaction compartment.Therefore, do not hope the heaviest or the thickest particle is stayed in the reactor.In the sort of situation, nature, the outlet of slurry stream can be preferably mounted on the reactor wall to take place mainly as overflow.
According to United States Patent (USP) 3,954, in 452 the method, solution rises to the clarification part through conical extension from the fluidisation part, therefrom, on the wall of clarification part, has the discharge outlet of solution.Disclosed technology comprises the displacement of cadmium solution and zinc powder.In this displacement reaction, form cadmium dust, this cadmium dust is because its porous but lighter, and simultaneously also thinner.A purpose is to prevent to leave reactor as the solids that product forms with solution.In this case, difficulty is that also hook-shaped particle is adhering to each other, for example, and caking.Little by little, caking increases the motion make in the fluid bed and dies down and stop fully at last.Therefore, the flocculation solution that prevents the caking of particle is fed in the fluidisation space.Because it in fact be not quite perfect for this to prevent, the hybrid component of therefore pulverizing this caking is placed in the bottom, and accordingly, receives impulsive force and prevent that the quite little flow resistance of turbulent flow is placed on the wall.This solution as far as possible directly flows to deliverying unit along the shortest route, makes that thus the flow field is the form of the crooked circular cone that reduces.This means that once more the speed of the flow of solution of carrying the possibility particle increases and this particle has no chance to leave from this flow point.
A problem of the said equipment is to prevent that the bed material that leaves of solid matter from should be quite thick.Yet along with reaction is carried out, the particle size of solid matter in the bed reduces, and the amount of the solid matter that drifts about with solution thus increases.
The shortcoming that current reactor faces is that in each reactor, this stream penetrated fluid bed once.The purification of this appreciable impact solution and the quantity of cycle stage.In addition, current fluidized-bed reactor is not regulated, but their character is determined according to the supply and the particle size of process flow.Nature, when this tittle changed according to the state of technology, this caused problem.In addition, reactor is a batch type, and it is not easy the flexibility that the consideration capacity causes.In current fluidized bed reactor system, the pressure loss is controlled by the liquid bed on the top that accumulates in deliverying unit.Because potential energy should comprise the pressure loss that the fluid bed of each reactor causes, therefore the transmission of solution through the series reaction device needs big liquid bed.
Summary of the invention
The objective of the invention is to eliminate the shortcoming that occurs in the above-described prior art.According to the present invention, through fluid bed be used for from mill solution purify solid matter novelty, therefore more efficient methods and equipment be provided.Through the present invention, the separation of solid matter is enhanced through circulation solution in fluid bed, and the required flexibility of process reform is increased through the amount of controlling the solution that will in fluid bed, circulate.
The present invention relates to a kind of reactor that is used in fluid bed purifying solid matter from mill solution; Wherein this reactor comprises the device of supplying with and removing mill solution; This reactor is formed by at least three parts, and the lowermost part of this three part is the columniform basically reactive moieties that is used for forming fluid bed; The conical tranquil part that upwards broadens is connected to the top of reactive moieties; And cylindrical clarification part is connected to the top of tranquil part; Its diameter is identical with the top of tranquil part, and wherein hybrid component is placed in the reactor so that at least a portion of mill solution is circulated back to the amount of the circulation solution in fluid bed and the control fluid bed.Through scheme according to the present invention, obtain to purify the result preferably through circulation solution in fluid bed and improve removing of solid matter.When process conditions change, can respond this variation according to scheme of the present invention and do not cause the interruption of technology.
According to embodiments of the invention, hybrid component is placed on the center of reactor to produce axial flow in the solution in reactor.Therefore, in reactor, reach best flox condition.According to the present invention, hybrid component comprises tube elements, and extend below fluid bed the bottom of said tube elements.Therefore, stream can be directed to flow through fluid bed.According to application of the present invention, hybrid component is tunnel propeller (tunnel propeller).According to example of the present invention, the bottom of the reactive moieties of reactor has the shape of sphering.Under the sort of situation, being fed into stream this bottom from the tube elements of hybrid component can be most preferably and be introduced to fluid bed equably.
According to embodiments of the invention, the supply pipe of mill solution is placed on the hybrid component top, and thus, the solution that be cleaned can directly be directed to tube elements through hybrid component.
According to the present invention, the top of reactor comprises spill box, and this spill box is used for removing clear solutions from reactor.According to the present invention, reactor comprises and is used for solid matter is passed out the device such as pump installation of fluid bed.According to embodiments of the invention, the amount of the solution that in fluid bed, circulates is greater than the amount that is fed into the solution in the reactor, the purification of the solution of strengthening being supplied to.According to this example, the solid matter that removes from the solution that will be cleaned is a cadmium.
The invention still further relates in the fluid bed in reactor the method that purifies solid matter from mill solution; Said mill solution is fed in the said reactor to form fluid bed in the columniform reactive moieties basically; Said reactive moieties is the lowermost part in the said reactor; Stream further moves to the tranquil part the top that widens into reactive moieties that makes progress from said bed conically; And further to the cylindrical clarification part on the top that is connected to tranquil part, the diameter of said clarification part is identical with the top of said tranquil part, wherein; At least a portion that is fed into the said solution in the said reactor is recycled to said fluid bed more than once, and the amount of circulation solution is controlled in said fluid bed through the hybrid component that is placed in the said reactor.
According to embodiments of the invention, produce axial flow in the mill solution of hybrid component in reactor, below fluid bed, extending should stream.According to the present invention, at least a portion that penetrates the solution of fluid bed is got back to the tube elements that is connected to hybrid component, and solution is circulated back to fluid bed therefrom.
According to embodiments of the invention, remove solid matter and do not stop technology and empty said reactor from said fluid bed with the interval of hope.The amount of the solution that in said fluid bed, flows is regulated by the rotary speed of said hybrid component.In the sort of situation, when the amount of the solution that is supplied to increased, the rotary speed of hybrid component reduced, and when the amount of the solution that is supplied to reduced, the rotary speed of hybrid component increased.According to the present invention, fluidized bed required energy is produced by hybrid component in fluid bed.
According to the present invention, can regulate the operation of fluid bed, any variation of process flow and particle size does not cause the problem of this technology thus.The change that volume change causes can preferably be implemented under the situation that needn't stop this technology.
The density of fluid bed and the solid matter content of overflow can always be optimized to be fit to state of the art respectively to reactor especially.The size design of new reactor model can be processed wide supply scope, and in fact the capacity of this system can be by the quantity control of reactor.In model according to the present invention, make the hybrid component of solution circulation produce the required energy of fluidisation.
Key character of the present invention is disclosed in accompanying claims.
Description of drawings
Be described in detail with reference to the attached drawings according to equipment of the present invention, wherein:
Fig. 1 a illustrates the vertical section according to reactor of the present invention;
Fig. 1 b illustrate as observe along direction A according to reactor of the present invention.
The specific embodiment
Fig. 1 a illustrates according to reactor 1 of the present invention, and liquid process solution 2 is handled with solid matter therein, makes powder solid material and this liquid form fluid bed 3, and while and the mill solution that will be cleaned 2 reactions that are fed in the reactor.In fluid bed 3, flow the solid matter fluidisation that makes with this solution reaction.According to this example, the displacement reaction of being discussed is to remove cadmium from the solution that has zinc, and wherein the flow of solution that has cadmium of the aqueous solution, the material that promptly will be replaced is crossed the bed of zinc powder.Now, reaction is carried out, and according to this reaction, zinc is dissolved in this solution and from this solution and removes cadmium.In the bottom of reactor, in the promptly cylindrical reactive moieties 4, form fluid bed 3.From this bottom; Conical calmness (calming) part 5 that upwards broadens and another cylindrical clarification part 6 rise, so that the solution 9 of the solid matter that will will further do not removed basically upwards rises to the spill box 11 in the top 10 of reactor and further handled.Usually, this solution of the purification that we discussed is to remove the chemical composition such as cadmium from this solution.At next operation stage, can also further remove cadmium from the solution 16 that will be removed.The bottom 7 of the reactive moieties 4 of reactor has the shape of sphering, and this promotes that solution 8 flow back into fluid bed 3.
According to the present invention, the required energy of the fluidisation of fluid bed is produced by the independent rotation hybrid component 12 that is placed in the reactor.Fluid levels below and it that hybrid component (be propeller, preferably tunnel propeller) is placed in the reactor are absorbed in the propeller to prevent air by blade protection.Nature, hybrid component 12 are connected to the superstructure of reactor 1 for example and it is by outside control module 13 controls of reactor.Hybrid component can be controlled according to the solid matter content of supply flow or overflow automatically.In reactor, propeller produces axial flow in the mill solution 2 that the supply pipe above propeller 15 is supplied to, and makes solution cycle through fluid bed 3 more than once.Circulation in fluid bed 3 further improves the separation of solid matter.Be fed into the tube elements 14 that solution 2 in the reactor moves to hybrid component (such as, circulation pipe), and move to the fluid bed below therefrom, it further flows through bed 3 therefrom, and the chemical composition that will be cleaned is thus reacted with this solid matter.When the tranquil part that is moved upwards up to from reactive moieties the reactor, the cross-sectional area of reactor increases, and when flowing velocity reduces, floats over particle and solution separating in this.After this, the part of solution is left as overflow, and a part is got back to tube elements further to flow through fluid bed through tunnel propeller.The performance of fluid bed is controlled by the rotary speed of pumping hybrid component, and meets through regulating the volume change that it takes place.Increase if be fed into the amount of the solution in the reactor, then the rotary speed of pumping hybrid component is slowed down accordingly; Therefore, fluid bed is kept stable.Accordingly, when the amount that will be supplied to reduced, this program was put upside down.According to the present invention, the solid matter that is used to purify is removed at the fluid bed upper reaches through pipeline and pump installation 18, and this pipeline separates with respect to the solution that flows with pump installation.Removing by the suitable pump such as pneumatic suction pump (airlift pump) of solid matter 17 realizes, in the top 10 of entering reactor and therefrom by further processing.
Example
Through following Example explanation the present invention.According to this example, the reactor of knowing at present that is used for removing cadmium is compared with reactor according to the present invention.Table 1 illustrates the measurement result in above-mentioned two kinds of situation.440m 3The mill solution that will be cleaned of/h is fed in the reactor, and the flow velocity degree that the solid matter particle is floated in the fluid bed is 0.039m/s.According to this example, through using according to reactor of the present invention, the diameter of fluid bed can be increased to 3600 millimeters, and the diameter of current reactor maintains 2000 millimeters.Carry out axial flow under the effect of the angle of rake rotary power of the solution that is cleaned in being placed on reactor, thus, under the effect of flowing, this solution is pushed in the angle of rake tube elements (that is circulation pipe) with the speed of 1.2m/s.The diameter of angle of rake tube elements (realizing the favourable stability of fluid bed through this diameter) is 550 millimeters in scheme according to the present invention.
Flow required in the conventional fluidisation always is determined according to the amount of the solution that will be supplied to, but according to using example of the present invention, flow can be increased to similar 1023 cubic metres per hour.According to the present invention, through the amount of regulating the circular flow in the fluid bed by independent tunnel propeller, this solution can be recycled according to situation about changing.The amount of the circular flow that fluidisation is required is by the rotary speed control of tunnel propeller.According to this example, the control range of circular flow is 1000-1500m 3/ h, the flow that is fed into the solution in the reactor thus can be at 0-900m 3Be conditioned in the scope of/h.According to the present invention, therefore this reactor can meet the change of process condition.According to this example, the volume of the fluid bed in the reactor can be increased to 15m 3In addition,, compare reactor of needs only in scheme according to the present invention with the situation of a series of many reactors of common use for this flow of fluidisation.
Table 1
Figure BDA00002094346500061
Figure BDA00002094346500071
Obvious for a person skilled in the art is that along with technological improvement, basic thought of the present invention can be implemented in every way.Therefore, the present invention and embodiment are not limited to above-mentioned example, but they can change in claim.

Claims (18)

1. one kind is used in fluid bed (3) purifying from mill solution (2) reactor (1) of solid matter; Wherein said reactor comprises the device of supplying with and removing said mill solution; Said reactor is formed by at least three parts, and the lowermost part of said at least three parts is the columniform basically reactive moieties (4) that are used for forming said fluid bed (3); The conical tranquil part (5) that upwards broadens is connected to the top of said reactive moieties; And cylindrical clarification part (6) is connected to the top of said tranquil part; The diameter of cylindrical clarification part is identical with the top of said tranquil part, it is characterized in that hybrid component (12) is placed in the said reactor so that at least a portion (2 of said mill solution; 8,9) be circulated back to said fluid bed (3) and control the amount of the circulation solution in the said fluid bed (3).
2. according to the reactor of claim 1, it is characterized in that said hybrid component (12) is placed on the centre of said reactor to produce axial flow in the solution (2) in said reactor (1).
3. according to the reactor of claim 1 or 2, it is characterized in that said hybrid component comprises tube elements (14), extend below said fluid bed the bottom of said tube elements (19).
4. according to the reactor of claim 1,2 or 3, it is characterized in that said hybrid component (12) is a tunnel propeller.
5. according to the reactor of claim 1, it is characterized in that the bottom (7) of the reactive moieties of said reactor (4) has the shape of sphering.
6. according to the reactor of claim 1, it is characterized in that the supply pipe (15) of mill solution (2) is placed on said hybrid component (12) top.
7. according to the reactor of claim 1, it is characterized in that the top of said reactor (10) comprise spill box (11), said spill box is used for removing clear solutions (16) from said reactor (1).
8. according to the reactor of claim 1, it is characterized in that, said reactor comprise be used for solid matter shift out said fluid bed (3), such as the device of pump installation (18).
9. according to the reactor of claim 1, it is characterized in that the amount of the solution of circulation is greater than the amount that is fed into the solution in the said reactor in said fluid bed (3).
10. according to the reactor of claim 1, it is characterized in that the solid matter that removes from the solution that will be cleaned is a cadmium.
11. purify the method for solid matter in the fluid bed in reactor (1) from mill solution (2); Mill solution is fed in the said reactor to form said fluid bed (3) in the columniform reactive moieties (4) basically; Said reactive moieties is the lowermost part in the said reactor; Stream further moves to the tranquil part (5) that makes progress and expand conically from the top of said reactive moieties from said fluid bed; And further move to the cylindrical clarification part (6) on the top that is connected to said tranquil part; The diameter of said clarification part is identical with the top of said tranquil part; It is characterized in that at least a portion that is fed into the mill solution (2) in the said reactor (1) is recycled to said fluid bed (3) more than once, and the amount of circulation solution is controlled in said fluid bed through the hybrid component (12) that is placed in the said reactor.
12. the method according to claim 11 is characterized in that, produces axial flow in the mill solution (2) of said hybrid component in said reactor, extends said axial flow in said fluid bed (3) below.
13. the method according to claim 11 is characterized in that, at least a portion that penetrates the solution of said fluid bed is got back to the tube elements (14) that is connected to said hybrid component (12), and said tube elements makes solution be circulated back to said fluid bed (3).
14. the method according to arbitrary claim of aforementioned claim is characterized in that, removes solid matter and does not stop technology and empty said reactor (1) from said fluid bed with the interval of hope.
15. the method according to arbitrary claim of aforementioned claim is characterized in that, the amount of the solution that in said fluid bed, flows is regulated by the rotary speed of said hybrid component (12).
16. the method according to claim 15 is characterized in that, when the amount of the solution that is supplied to (2) increased, the rotary speed of said hybrid component reduced.
17. the method according to claim 15 is characterized in that, when the amount of the solution that is supplied to (2) reduced, the rotary speed of said hybrid component increased.
18. the method according to arbitrary claim of aforementioned claim is characterized in that the required energy of the fluidisation of the particle in the said fluid bed is produced by said hybrid component (12).
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CA2789235A1 (en) 2011-09-22
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EA201290924A1 (en) 2013-04-30
FI20100120A0 (en) 2010-03-18

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