CN110270239A - Powder pulping process - Google Patents

Powder pulping process Download PDF

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Publication number
CN110270239A
CN110270239A CN201910501741.0A CN201910501741A CN110270239A CN 110270239 A CN110270239 A CN 110270239A CN 201910501741 A CN201910501741 A CN 201910501741A CN 110270239 A CN110270239 A CN 110270239A
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CN
China
Prior art keywords
powder
cylinder
mixed
pulping process
blade
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Pending
Application number
CN201910501741.0A
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Chinese (zh)
Inventor
王奕唯
聂永广
孙中卫
段所行
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ENN Science and Technology Development Co Ltd
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ENN Science and Technology Development Co Ltd
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Priority to CN201910501741.0A priority Critical patent/CN110270239A/en
Publication of CN110270239A publication Critical patent/CN110270239A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/51Methods thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/53Mixing liquids with solids using driven stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/54Mixing liquids with solids wetting solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/565Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/59Mixing systems, i.e. flow charts or diagrams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/19Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80Mixing plants; Combinations of mixers
    • B01F33/82Combinations of dissimilar mixers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80Mixing plants; Combinations of mixers
    • B01F33/82Combinations of dissimilar mixers
    • B01F33/821Combinations of dissimilar mixers with consecutive receptacles

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The present invention provides a kind of powder pulping process, and this method comprises the following steps: moistening step soaks powder;Mixing step mixes the powder after wetting with supplement water;Slurrying step is stirred mixed powder and supplement water, slurry is made.In the present invention, by being soaked in advance to the input intracorporal powder of cylinder, powder is sufficiently soaked, is avoided as powder floats on the water surface in the prior art, then after the powder after wetting being mixed with supplement water again, it is stirred again, convenient for being made for slurry, effectively improves the speed being slurried, and, powder continuously moves in cylinder, can greatly improve repulping rate, convenient for continuous operation.

Description

Powder pulping process
Technical field
The present invention relates to pulping technique fields, in particular to a kind of powder pulping process.
Background technique
Solid powder is mixed with liquid such as water, and is used after stirring into slurry in a reservoir, is one in Chemical Manufacture Kind conventional process.But some solid powder paste-forming properties are poor, usual this kind of powder has the following characteristics that hydrophily is poor, aqueous Measure that low (≤5%), partial size small (average grain diameter≤100 micron), gap is abundant, bulk density is very low (≤400kg/m3).When this It when class powder and the direct mixed pulp of water, is easy largely to float on the water surface, causes speed is slurried slow.
Summary of the invention
In consideration of it, the invention proposes a kind of powder pulping process, it is intended to it is slow to solve repulping rate in the prior art Problem.
The invention proposes a kind of powder pulping process, and this method comprises the following steps: moistening step moistens powder It is wet;Mixing step mixes the powder after wetting with supplement water;Slurrying step, to mixed powder and supplement water into Row stirring, is made slurry.
Further, in above-mentioned powder pulping process, in moistening step, powder is soaked in the wetted area of cylinder;Mixing In step, supplement water is conveyed to the mixed zone of cylinder, to be mixed with the powder after wetting;In slurrying step, in cylinder Slurrying area be stirred after powder and supplement water and slurry is made;Wetted area, mixed zone and slurrying area are axial successively along cylinder It is arranged and is interconnected, and, wetted area is isolated with mixed zone.
Further, in above-mentioned powder pulping process, in moistening step, powder and atomized water are conveyed to wetted area, and right Powder and atomized water are stirred.
Further, in above-mentioned powder pulping process, be set side by side by the radial direction in wetted area along cylinder first Blender and the second blender stirring powder and atomized water, wherein the first blender includes: the first agitating shaft, the second blender It include: the second agitating shaft, the first agitating shaft and the second agitating shaft are perpendicular with the side wall of cylinder.
Further, in above-mentioned powder pulping process, the first blender includes: at least one set of first blade, the second stirring Device includes: at least one set of second blade, every group of first blade and the equal interlaced arrangement of every group of second blade and has overlapping region.
Further, the overlap coefficient in above-mentioned powder pulping process, between every group of first blade and every group of second blade It is 0.2~0.4.
Further, in above-mentioned powder pulping process, the first blender is opposite with the mixing direction of the second blender.
Further, in above-mentioned powder pulping process, in slurrying step, powder and supplement water after being stirred, so that Powder and supplement water circulate mixing in slurrying area, and slurry is made.
Further, in above-mentioned powder pulping process, in slurrying step, third blender, third are set in slurrying area Blender include: along cylinder axial direction be rotatablely arranged at the intracorporal third agitating shaft of cylinder and along third agitating shaft it is axial according to At least two groups third blade of secondary setting, mixed powder and supplement water are between agitating shaft and the inner wall of cylinder and on most side It is circulated between two groups of third blades of side.
Further, in above-mentioned powder pulping process, the third blade near cylinder body bottom is in the state of raising up, so that Mixed powder and supplement top movements of the water to cylinder;Remaining each group third blade is in pressed status, so that after mixing Powder and supplement water moved to the bottom of cylinder.
Further, above-mentioned powder pulping process further include: returning charge step, it will be in a part and mixing step in slurry Wetting after powder with supplement water mixed;In slurrying step, mixed slurry, powder and supplement water are stirred It mixes, slurry is made.
In the present invention, by advance to input the intracorporal powder of cylinder soak, powder is sufficiently soaked, avoid as Powder floats on the water surface in the prior art, after then again being mixed the powder after wetting with supplement water, then is stirred, just In being made for slurry, the speed being slurried is effectively improved, solves the problems, such as that repulping rate is slow in the prior art, also, Powder continuously moves in cylinder, can greatly improve repulping rate, convenient for continuous operation.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the flow chart of powder pulping process provided in an embodiment of the present invention;
Fig. 2 is the another flow chart of powder pulping process provided in an embodiment of the present invention;
Fig. 3 is the structural schematic diagram of powder pulping device in powder pulping process provided in an embodiment of the present invention;
Fig. 4 is the overlooking structure diagram of powder pulping device provided in an embodiment of the present invention;
Fig. 5 is the sectional top view in Fig. 3 at A-A;
Fig. 6 is powder distribution and flow field schematic diagram in powder pulping process provided in an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure It is fully disclosed to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Fig. 1, Fig. 1 is the flow chart of powder pulping process provided in an embodiment of the present invention.As shown, powder slurrying Method includes the following steps:
Moistening step S1, soaks powder.
Specifically, powder is soaked in the wetted area of cylinder.More specifically, powder is conveyed into the wetted area of cylinder, And soak powder.
Referring to Fig. 3 to Fig. 5, the top (top shown in Fig. 3) of cylinder 1 offers feed opening 11, which is used for Powder is conveyed into cylinder 1.Powder can be for hydrophily is poor, small (average grain diameter≤100 are micro- for water content low (≤5%), partial size Rice), gap is abundant, solid powder of bulk density very low (≤400kg/m3).Certainly, powder may be consolidating for other properties Body powder, the present embodiment are not intended to be limited in any this.
When it is implemented, feed opening 11 can be at least one, each feed opening 11 is uniformly distributed at the top of cylinder 1.? In the present embodiment, feed opening 11 is two, and two feed openings 11 are symmetrical arranged relative to the vertical axis of cylinder 1.
Mixing step S2 mixes the powder after wetting with supplement water.
Specifically, supplement water is conveyed to the mixed zone of cylinder, so that supplement water is mixed with the powder after wetting.
Referring to Fig. 3 to Fig. 5, cylinder 1 offers at least one water supplement port 13, and water supplement port 13 is for providing supplement water.It is each to mend The mouth of a river 13 can be opened in cylinder 1 corresponding at mixed zone 5, can also be opened at the top of cylinder 1, the present embodiment is for mending Do not do any restrictions in the position that opens up at the mouth of a river 13.Moisturizing spray head can be set at each water supplement port 13, to guarantee to ejection Supplement water there is certain dispersibility, but sprayability is not strictly required.
When it is implemented, the quantity of water supplement port 13 can determine according to the actual situation, the present embodiment does not do this any Limitation.When it is implemented, water supplement port 13 is set as two rows of, every row's water supplement port 13 is at least one, and two rows of water supplement ports 13 are opposite It is symmetrical arranged in the vertical axis of cylinder 1.
Slurrying step S3 is stirred mixed powder and supplement water, slurry is made.
Specifically, in the slurrying area of cylinder, mixed powder and supplement water are stirred, slurry is made, and will slurry Material output cylinder.Wherein, wetted area, mixed zone and slurrying area set gradually and are interconnected along axial direction in cylinder, and, profit Wet area is isolated with mixed zone.
Specifically, the bottom (lower part shown in Fig. 3) of cylinder 1 offers grout outlet 12, and slurry is gone out by 1 bottom of cylinder Mouth 12 is starched to export.The axial direction of cylinder 1 is the short transverse of cylinder 1, the height of wetted area, mixed zone and slurrying area along cylinder 1 Direction is from top to bottom set gradually.The barrier-like state in cylinder 1 of wetted area 4, i.e. wetted area 4 are relatively isolated with mixed zone 5, but It is being connected just for the sake of conveying the powder after wetting to mixed zone 5, so, just between wetted area 4 and mixed zone 5 It is soaked in powder, and wetted area 4 is isolated with cylinder 1, wetting effect can be effectively improved.
Referring to Fig. 3 to Fig. 5, shell 21 is provided in cylinder 1, the first end (upper end shown in Fig. 3) of shell 21 opens up There is opening, also, the first end of shell 21 is connected with the roof of cylinder 1, then the roof of shell 21 and cylinder 1, which encloses, is set as soaking Area 4.The second end (lower end shown in Fig. 3) of shell 21 offers discharge port 211, the powder output housing 21 after soaking And then enter mixed zone 5.
When it is implemented, the height of wetted area 4, the i.e. height of shell 21, account for 1/3 to the 1/2 of 1 height of cylinder.Certainly, The height of wetted area 4 can also determine that the present embodiment does not do any restrictions to this according to the actual situation.
When it is implemented, shell 21 may include: first partition 212 and second partition 213.Wherein, first partition 212 is in Annular, second partition 213 are arc-shaped.One end of first partition 212 is connected with the top of cylinder 1, first partition 212 it is another End is connected with second partition 213, and first partition 212 constitutes the side wall of shell 21, and second partition 213 constitutes shell 21 Bottom, discharge port 211 are opened in second partition 213.
As can be seen that, by soaking in advance to the input intracorporal powder of cylinder, enabling powder abundant in the present embodiment Wetting is avoided as powder floats on the water surface in the prior art, then again by after wetting powder with supplement after water mixed, then It is stirred, convenient for being made for slurry, effectively improves the speed being slurried, it is slow to solve repulping rate in the prior art Problem, also, powder continuously moves in cylinder, can greatly improve repulping rate, convenient for continuous operation.
In above-mentioned moistening step S1, powder and atomized water are conveyed to wetted area, and be stirred to powder and atomized water.
Specifically, the feed opening 11 at 1 top of cylinder is corresponding with wetted area 4, i.e., feed opening 11 is opened in cylinder 1 and corresponds to Roof at wetted area 4 receives powder convenient for wetted area 4.Cylinder 1 top and 4 corresponding section of wetted area is provided with mist Change spray head 22, i.e. atomizer 22 is opened in cylinder 1 corresponding to the roof at wetted area 4, and atomizer 22 is used for jet atomization Water, so that atomized water is uniformly sprayed on powder.
When it is implemented, the water that atomizer 22 provides accounts for 1/3 to the 2/3 of slurrying total Water, water can be according to difference The wetting difficulty or ease and water imbibition of powder are adjusted.If needing additive to assist when powder slurrying, can in advance by additive with Water mixing, then sprayed by atomizer 22 with mist.
As can be seen that in wetted area, atomized water can be uniformly sprayed on powder in the present embodiment, convenient for powder It is soaked, effectively improves wetting effect, also, the wetting of powder can be accelerated to the stirring of powder and atomized water, and So that powder sufficiently soaks.
In moistening step S1, the first blender and second of setting is set side by side by the radial direction in wetted area along cylinder Blender stirs powder and atomized water, wherein the first blender includes: the first agitating shaft, and the second blender includes: second to stir Axis is mixed, the first agitating shaft and the second agitating shaft are perpendicular with the side wall of cylinder.
Specifically, it is juxtaposed in shell 21 referring to Fig. 3 to Fig. 5, the first blender 23 and the second blender 24, first Blender 23 and the second blender 24 being arranged radially along shell 21.Wherein, the axial direction of shell 21 is equal with the axial direction of cylinder 1 Row, the radial direction of shell 21 is parallel with the radial direction of cylinder 1 and perpendicular with the axial direction of cylinder 1, and the axial direction of cylinder 1 is cylinder 1 Short transverse.First agitating shaft is rotatablely arranged in shell 21 along the radial direction of shell 21, and the second agitating shaft is along shell 21 Radial direction is rotatablely arranged in shell 21.
As can be seen that the first blender and the second blender are jointly stirred powder and atomized water in the present embodiment, So that powder is mixed under the action of radial shear with atomized water, the abundant wetting of powder ensure that.
In moistening step S1, the first blender includes: at least one set of first blade, and the second blender includes: at least one set Second blade, every group of first blade and the equal interlaced arrangement of every group of second blade and have overlapping region.
Specifically, the group number of the first blade 231 setting is equal with the group number that the second blade 241 is arranged, also, each group first Blade 231 and the second blade of each group 241 are to correspond.Every group of first blade 231 and every group of second blade 241 interlock cloth Set and have overlapping region, that is to say, that any one group of the first blade 231 be inserted in the second blade of two adjacent groups 241 it Between, so that the first blade of each group 231 and the second blade of each group 241 are to intersect to plug, then the first blade of each group 231 and each group the There is juxtaposition region between two blades 241.So, enable to powder more abundant with atomized water in whipping process Extruding and rubbing, convenient for sufficiently being soaked to powder, achieved the effect that well mix, soak.
Preferably, the overlap coefficient between every group of first blade 231 and every group of second blade 241 is 0.2~0.4.More Preferably, the overlap coefficient between every group of first blade 231 and every group of second blade 241 is 0.3.
Preferably, every group of first blade 231 and every group of second blade 241 are straight blade, can have to powder compared with Strong radial shear and immixture improves wetting effect so that powder is better mixed with atomized water.
More preferably, the first blender is opposite with the mixing direction of the second blender.For example, with reference to Fig. 3, the first stirring Device 23 is to rotate clockwise, and the second blender 24 is to rotate counterclockwise.In such manner, it is possible to preferably radial shear is carried out to powder, And powder and atomized water are sufficiently mixed, effectively guarantee the wetting of powder.
In mixing step S2, there is prepsetting gap, the gap is in a ring between shell 21 and cylinder 1.Each water supplement port 13 is Cylinder 1 is opened in corresponding to the side wall between shell 21 and cylinder 1 at annular gap.In the present embodiment, each water supplement port 13 is equal Cylinder 1 is opened in corresponding to the roof at annular gap, also, is uniformly distributed.In this way, the setting of each water supplement port 13 enables to Supplement water is flowed downward by the top of cylinder 1, is sufficiently mixed convenient for supplement water in mixed zone 5 and the powder after wetting.
In slurrying step S3, powder and supplement water after being stirred, so that powder and supplement water are in slurrying area recycle stream Dynamic mixing, is made slurry.
Specifically, third blender is set in the slurrying area of cylinder, and third blender includes: that can turn along the axial direction of cylinder It is set to the intracorporal third agitating shaft of cylinder and at least two groups third blade that sets gradually of axial direction along third agitating shaft dynamicly, mixes Powder and supplement water recycle stream between agitating shaft and the inner wall of cylinder and between two groups of third blades of most avris after conjunction It is dynamic.
Specifically, referring to Fig. 3 to Fig. 6, there is pre-determined distance, then third blender between third blender 3 and wetted area 4 Gap between 3 and wetted area 4 forms mixed zone 5, and mixed zone 5 is used to mix the powder after wetting with supplement water.Tool When body is implemented, pre-determined distance can determine that the present embodiment does not do any restrictions to this according to the actual situation.Third blender 3 Region in corresponding cylinder 1 is slurrying area 6, and slurrying area 6 is used to mixed powder and supplement water slurry is made.
Third blender 3 is arranged along the axial direction of cylinder 1, specifically, the third agitating shaft 31 and cylinder 1 of third blender 3 Vertical axis be on same straight line.Every group of third blade 32 is rotated under the drive of third agitating shaft 31, thus right Powder is stirred.Referring to Fig. 3, third agitating shaft 31 successively wears the roof of cylinder 1, wetted area 4, discharge port 211, mixed zone 5 and it is placed in slurrying area 6, there is certain distance, in order to third agitating shaft 31 between third agitating shaft 31 and the bottom of cylinder 1 Rotation in cylinder 1.Preferably, each group third blade 32 is selected with the rotary propeller type blade relatively axially flowed by force.
Referring to Fig. 3 and Fig. 6, more preferably, when the rotation of third blender, near that group of third paddle of cylinder body bottom Ye Juncheng raises up state, so that mixed powder and supplement top movements of the water to cylinder, prevent the deposition of powder;Remaining is each Group third blade is in pressed status, so that mixed powder and supplement water are moved to the bottom of cylinder.
Specifically, the first end of each third blade 32 in every group is connected with third agitating shaft 31, and first end exists Position rotation on third agitating shaft 31 is inclined.The second end of each third blade 32 is free end and stirs with third In vertical state, then from the side, third blade 32 and third agitating shaft 31 are perpendicular for axis 31.When third blender 3 rotates When, that group of third blade 32 near 1 bottom of cylinder pushes mixed powder and supplement water to 1 top movements of cylinder, i.e., It forms and raises up, remaining each group third blade pushes mixed powder and supplement water to move to 1 bottom of cylinder, that is, forms down Pressure.
Referring to Fig. 3 and Fig. 6, in mixed zone 5, the powder after wetting is mixed with supplement water, mixed powder and benefit Water-filling falls to downwards slurrying area 6 under the effect of gravity, and third blender 3 is stirred mixed powder and supplement water. Wherein, near the third blade 32 of mixed zone 5, that is, it is placed in the third blade of the top, powder and supplement water is sheared, So that powder is sufficiently mixed with supplement water, start gradually to be slurried.Powder near third agitating shaft 31 is by lower layer Third blade 32 is sucked into next layer, and then carries out shear-mixed by next group of third blade 32, until powder reach near When one group of third blade 32 (the third blade for being placed in bottom) of 1 bottom of cylinder, with the bottom that is placed in the state that raises up Third blade collides, and spreads around, and moves upwards along the inner wall of cylinder 1, then most upper by being placed in for third blender 3 The third blade 32 of side continues to be stirred powder, repeats above-mentioned circulation, so that powder and supplement water are stirred in third The shuttling movement in a ring between axis 31 and the inner wall of cylinder 1 and between two groups of third blades of most avris, is made slurry.
Powder is mobile in a manner of moving bed in entire pulping process, as slurry is constantly by the pulp of 1 bottom of cylinder Mouth 12 exports, the liquid level decline in slurrying area 6, and the powder in wetted area 4 after wetting is exported by the discharge port 211 of shell 21, powder It moves gradually downward, into mixed zone 5 and slurrying area 6, and then slurry is made.
As can be seen that in the present embodiment, again by third blender to it after powder and supplement water are sufficiently mixed It is stirred, can be compared under the slow-speed of revolution, quickly slurry is made in stirring, greatly accelerates the speed that is slurried of powder, also, powder It is continuously moved in cylinder, the revolving speed of each blender can be greatly lowered, improve repulping rate, convenient for continuous operation.Meanwhile it starching Material carries out radial shear mixing and axial circulation mixing under the action of third blender, forms strong circulation and disturbance, Powder and supplement water is enabled to carry out being sufficiently mixed stirring and slurry is made.
Referring to fig. 2, Fig. 2 is the another flow chart of powder pulping process provided in an embodiment of the present invention.As shown, powder Pulping process includes the following steps:
Moistening step S1, soaks powder.
Mixing step S2 mixes the powder after wetting with supplement water.
Slurrying step S3 is stirred mixed powder and supplement water, slurry is made.
Wherein, the specific implementation process of moistening step S1, mixing step S2 and slurrying step S3 is referring to above description, Details are not described herein for the present embodiment.
Returning charge step S4 mixes a part in slurry with the powder after the wetting in mixing step S2 with supplement water It closes;Wherein, in slurrying step S3, mixed slurry, powder and supplement water is stirred, slurry is made.
Specifically, referring to Fig. 3, the side wall that cylinder 1 corresponds at mixed zone 5 offers return port 14, and return port 14 passes through Communicating pipe is connected with grout outlet 12, being delivered at return port 14 a part communicating pipe in the slurry that grout outlet 12 exports, The mixed zone 5 of cylinder 1 is delivered to by return port 14 again.In mixed zone 5, slurry with wetting after powder and supplement water mixed It closes, the powder and supplement water after mixed slurry, wetting are delivered to slurrying area 6 again and make under the stirring of third blender 3 Slurry.
When it is implemented, by adjusting discharge capacity and returning charge ratio, i.e., adjustable powder the intracorporal movement speed of cylinder and at Starch effect.
As can be seen that the present embodiment in, by the way that part size is delivered in cylinder again, and with after wetting powder and Supplement water is mixed, and stock quality is effectively improved.
In conclusion, by soaking in advance to the input intracorporal powder of cylinder, enabling powder abundant in the present embodiment Wetting is avoided as powder floats on the water surface in the prior art, then again by after wetting powder with supplement after water mixed, then It is stirred, convenient for being made for slurry, effectively improves the speed being slurried, also, powder continuously moves in cylinder, it can be big Width improves repulping rate, convenient for continuous operation.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (11)

1. a kind of powder pulping process, which comprises the steps of:
Moistening step soaks powder;
Mixing step mixes the powder after wetting with supplement water;
Slurrying step is stirred mixed powder and supplement water, slurry is made.
2. powder pulping process according to claim 1, which is characterized in that
In the moistening step, the powder is soaked in the wetted area of cylinder;
In the mixing step, the mixed zone conveying supplement water of Xiang Suoshu cylinder, to be mixed with the powder after wetting;
In the slurrying step, simultaneously slurry is made in powder after the slurrying area of the cylinder is stirred and supplement water;
The wetted area, the mixed zone and the slurrying area axially set gradually and are interconnected along the cylinder, and, institute Wetted area is stated to be isolated with the mixed zone.
3. powder pulping process according to claim 2, which is characterized in that in the moistening step,
Powder and atomized water are conveyed to the wetted area, and the powder and the atomized water are stirred.
4. powder pulping process according to claim 3, which is characterized in that
The first blender being set side by side by the radial direction in the wetted area along cylinder and the second blender stir the powder Material and the atomized water, wherein first blender includes: the first agitating shaft, and second blender includes: the second stirring Axis, first agitating shaft and second agitating shaft are perpendicular with the side wall of the cylinder.
5. powder pulping process according to claim 4, which is characterized in that
First blender includes: at least one set of first blade, and second blender includes: at least one set of second blade, The equal interlaced arrangement of second blade described in first blade described in every group and every group and there is overlapping region.
6. powder pulping process according to claim 5, which is characterized in that the first blade described in every group and described in every group the Overlap coefficient between two blades is 0.2~0.4.
7. powder pulping process according to claim 4, which is characterized in that first blender and second stirring The mixing direction of device is opposite.
8. powder pulping process according to claim 2, which is characterized in that in the slurrying step,
Slurry is made so that powder and supplement water circulate mixing in the slurrying area in powder and supplement water after being stirred Material.
9. powder pulping process according to claim 8, which is characterized in that in the slurrying step,
Third blender is set in the slurrying area, and the third blender includes: that can be rotatably set along the axial direction of cylinder In the intracorporal third agitating shaft of cylinder and along at least two groups third blade that sets gradually of axial direction of the third agitating shaft, after mixing Powder and supplement water followed between the agitating shaft and the inner wall of the cylinder and between two groups of third blades of most avris Circulation is dynamic.
10. powder pulping process according to claim 9, which is characterized in that
Third blade near the cylinder body bottom is in the state of raising up, so that mixed powder and supplement water are to the cylinder The top movements of body;
Remaining each group third blade is in pressed status, so that mixed powder and supplement water are transported to the bottom of the cylinder It is dynamic.
11. powder pulping process according to claim 1, which is characterized in that further include:
Returning charge step, by the slurry a part and the mixing step in the wetting after powder and the supplement Water is mixed;
In the slurrying step, mixed slurry, powder and supplement water are stirred, slurry is made.
CN201910501741.0A 2019-06-11 2019-06-11 Powder pulping process Pending CN110270239A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103111216A (en) * 2013-01-31 2013-05-22 浙江浙大海元环境科技有限公司 Double-shaft powder stirring humidifying device
CN204320199U (en) * 2014-12-16 2015-05-13 江苏华东锂电技术研究院有限公司 Cell size Preparation equipment
CN206661032U (en) * 2017-04-05 2017-11-24 湖北白涢石油化工股份有限公司 A kind of lubricating grease mediation kettle
CN107754663A (en) * 2017-12-04 2018-03-06 大唐滨州发电有限公司 A kind of wet type Double shaft stirring system
CN108854641A (en) * 2018-07-02 2018-11-23 东华工程科技股份有限公司 A kind of ultralight fines continuous pulping equipment and pulping process
CN210729194U (en) * 2019-06-11 2020-06-12 新奥科技发展有限公司 Powder slurrying device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103111216A (en) * 2013-01-31 2013-05-22 浙江浙大海元环境科技有限公司 Double-shaft powder stirring humidifying device
CN204320199U (en) * 2014-12-16 2015-05-13 江苏华东锂电技术研究院有限公司 Cell size Preparation equipment
CN206661032U (en) * 2017-04-05 2017-11-24 湖北白涢石油化工股份有限公司 A kind of lubricating grease mediation kettle
CN107754663A (en) * 2017-12-04 2018-03-06 大唐滨州发电有限公司 A kind of wet type Double shaft stirring system
CN108854641A (en) * 2018-07-02 2018-11-23 东华工程科技股份有限公司 A kind of ultralight fines continuous pulping equipment and pulping process
CN210729194U (en) * 2019-06-11 2020-06-12 新奥科技发展有限公司 Powder slurrying device

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