CN104404827B - Cellulose pulp pre-processing device - Google Patents

Cellulose pulp pre-processing device Download PDF

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Publication number
CN104404827B
CN104404827B CN201410578436.9A CN201410578436A CN104404827B CN 104404827 B CN104404827 B CN 104404827B CN 201410578436 A CN201410578436 A CN 201410578436A CN 104404827 B CN104404827 B CN 104404827B
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pressing plate
kettle
porous pressing
hole
shaft
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CN104404827A (en
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金云峰
孙玉山
徐纪刚
赵庆章
徐鸣风
骆强
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China Textile Academy
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China Textile Academy
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Abstract

The present invention provides cellulose pulp pre-processing device, including vertical stirred tank, kettle is arranged over a kettle cover, kettle cover is provided with motor, shaft is connected with motor, shaft stretches in kettle, shaft is provided with stirring paddle, in described kettle, stirring paddle is arranged over a porous pressing plate, porous pressing plate is provided with a central through hole, and shaft is arranged through central through hole, and described porous pressing plate matches with kettle cross section setting, described porous pressing plate is provided with multiple hole, and described porous pressing plate can move up and down in kettle.The invention has the beneficial effects as follows that porous pressing plate can complete the technological requirement that pulp is pressed onto in solvent, sheet steeping solvent swell, mixing and pulping, complete in a still, save equipment investment and save engineering input, save manufacture, energy consumption and administration fee use, shorten cellulose pulp pretreating process flow process.

Description

Cellulose pulp pre-processing device
Technical field
The invention belongs to material mixing equipment, especially relate to a kind of cellulose pulp pre-processing device, for cellulose Sheet steeping solvent, swelling, pulping and mixing, be particularly suitable for but be not limited only in novel solvent method cellulose fibre (Lyocell) The pretreatment of cellulose pulp.
Background technology
The history that the production of viscose rayon has been passed by more than 100 year, its existence meets mankind society to a certain extent Can develop the demand of fibre in differentiation, but use a large amount of environmentally hazardous chemical (such as CS owing to its production technology needing2, NaOH, ZnSO4, H2SO4Deng), production process also contains substantial amounts of toxic chemical substance (such as H in the sewage waste of discharge2S, CS2Deng), environment can be caused huge pollution, the cost of the harmless treatment of these environmentally harmful chemical substances is the highest, And limited success.Compared with viscose rayon, the production of novel solvent method cellulose fibre complies fully with environmental requirement.Cellulose slurry The dissolving of the dregs of rice and spinning, strand coagulating bath precipitation solvent etc. are all physical processes, and the material related in whole flow process is main the most just It is cellulose pulp and solvent, additionally has very small amount of stabilizer etc..
The process of the pulp pretreatment of cellulose, the pulp preprocessing process of a kind of same viscose rayon, by pulp feeding leaching While stain bucket, steeping liquor continuous and quantitative is sent in treating tank through alkali liquor batch box by lye pump, in treating tank, and pulp quilt The slurry wing tears up and is sufficiently mixed with alkali, then forms slurry medicated porridge through squeezer, pulverizer, experienced drum, xanthating machine etc. equipment, at this Reason process long flow path, input cost is big, and energy consumption is big;Another kind is measuring fixed amount pulp and solvent, the most directly forms slurry Medicated porridge, this processing procedure energy consumption is low, and occupation area of equipment is little, but pulp pre-processing device is required height, will accomplish every a piece of slurry The dregs of rice absorb enough solvents, starch medicated porridge uniformity after mixing, and the pulp using existing stirred tank not reach cellulose is located in advance Reason requirement.
CN202962468U discloses a kind of stirred tank, including kettle, is externally provided with a frequency conversion motor, a shaft at kettle Being driven by frequency conversion motor, and described shaft stretches in tower body, described shaft is provided with multi-layer oar blade, propeller shank and stirring Axle connects, and described multi-layer oar blade is equally distributed on shaft;Blade from root to sloped-end certain angle, described with The stirrer paddle angle of inclination of one layer is consistent with direction;The angle of inclination of described adjacent two layers stirrer paddle is equal in magnitude, tilts In opposite direction.When using this stirred tank to carry out cellulose pulp pretreatment, owing to pulp swims in solvent upper strata, solvent can not By pulp thorough impregnation, swelling, so mixed effect is poor.
Domestic current cellulose machinery manufacturing technology field is at the early-stage, and cellulose pulp pre-processing device machine-building is led Territory is also in the blank stage.External this respect the most for many years, has the technology of maturation, abroad to domestic blockade on new techniques, makes We are only by testing the production method at research cellulose.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, the cellulose pulp pretreatment that simple to operate, production efficiency is high Equipment, be suitably applied cellulose pulp and the dipping of solvent, swelling, mix multinomial processing procedure.
The technical scheme is that cellulose pulp pre-processing device, including vertical stirred tank, kettle is arranged over one Kettle cover, kettle cover is provided with motor, and shaft is connected with motor, and shaft stretches in kettle, and shaft is provided with stirring paddle, its In, in described kettle, stirring paddle is arranged over a porous pressing plate that can move up and down in kettle, and porous pressing plate is provided with a center Through hole, shaft is arranged through central through hole, and described porous pressing plate matches with kettle cross section setting, and described porous pressing plate sets There is multiple hole.
In order to realize the technological requirement of cellulose pulp pretreatment, the present invention is provided with liftable many pore pressure in stirred tank Plate, porous pressing plate is by floating pulp press-in solvent in a solvent.Moved up and down in stirred tank by porous pressing plate, to protect Pulp is completely forced in solvent by card, so that pulp can obtain complete swelling in a solvent, improves solvent and slurry in stirred tank The dipping swelling effect of the dregs of rice.
Be provided with the positioner for driving porous pressing plate to move up and down on the upside of porous pressing plate, described positioner lower end with It is connected on the upside of porous pressing plate, positioner upper end and kettle cover or kettle upper end is movable is connected;
Preferably, described positioner is pull bar, and the kettle cover of stirred tank is provided with tie rod hole, pull bar through tie rod hole and with The movable connection of kettle cover;
It is furthermore preferred that be provided with multiple pull bar parallel with shaft on the upside of porous pressing plate, pull bar is all laid around shaft Put.
It is connected by movable between pull bar with kettle cover, porous pressing plate moving up and down in stirred tank can be realized, adjust Joint porous pressing plate position in stirred tank.
Pull bar is provided with multiple hole, location being perpendicular to pull bar, and pull bar passes through to be connected through the bearing pin in hole, location with kettle cover, The length of described bearing pin is more than the diameter of tie rod hole.
Pull bar is provided with hole, multiple location, on pull bar, will carry or move down the top making tie rod hole be placed exactly in kettle cover, will Bearing pin passes tie rod hole, it becomes possible to is blocked by bearing pin, prevents pull bar owing to action of gravity is to kettle lower slide, pull bar and kettle cover Between relative position fix, thus fixing porous pressing plate position in stirred tank.
Kettle sidewall is provided with feed pipe, and one end of feed pipe is connected with the charging aperture of kettle sidewall, another of feed pipe End extends, on the kettle sidewall that charging aperture is arranged between stirrer paddle and kettle cover, between charging aperture upper end and kettle cover obliquely It is provided with the spacing accommodating porous pressing plate.
Being arranged on by feed pipe on kettle sidewall, be moved upward to above charging aperture by porous pressing plate, porous pressing plate is with regard to energy Enough obstruction adds material in stirred tank.
Described porous pressing plate stop be fixed on primary importance or the second position, described primary importance be positioned at charging aperture upper end with Between kettle cover, between the described second position is above charging aperture lower end and stirrer paddle;
Preferably, porous pressing plate is stopped be fixed on first by the first hole, location on pull bar or the second hole, location respectively Putting or the second position, the distance between the first hole, location and porous pressing plate is less than or equal to the distance between charging aperture upper end and kettle cover, Distance between the second hole, location and porous pressing plate is more than or equal to the distance between charging aperture lower end and kettle cover.
Described porous pressing plate stop be fixed on primary importance, the second position or the 3rd position, described primary importance be positioned at into Between material mouth upper end and kettle cover, between the described second position is above charging aperture lower end and stirrer paddle, described 3rd position Between below the second position and above stirrer paddle;
Preferably, porous pressing plate stops solid by the first hole, location, the second hole, location or the positioning boss on pull bar respectively Being scheduled on primary importance, the second position or the 3rd position, the distance between the first hole, location and porous pressing plate is less than or equal on charging aperture Hold with kettle cover between distance, second location hole and porous pressing plate between distance more than or equal between charging aperture lower end and kettle cover away from From, pull bar upper end is additionally provided with positioning boss, and positioning boss is the projection that width is more than the diameter of tie rod hole, and positioning boss is positioned at Above two hole, location, the distance between described positioning boss and porous pressing plate less than or equal to stirrer paddle topmost and between kettle cover away from From.
Can be provided with a charging aperture on the sidewall of kettle, pulp and solvent all join stirred tank by this charging aperture In.Two charging apertures can also be provided with on the sidewall of kettle, two charging apertures are respectively equipped with solvent feed pipe and pulp charging Pipe.Solvent and pulp join stirred tank from different feed pipes respectively.When charging, first bearing pin is arranged on first fixed The position in hole, position, porous pressing plate is positioned at above charging aperture, and pulp charging aperture from kettle sidewall joins in kettle;Then will Porous pressing plate moves down, and is fixed on by bearing pin on the second hole, location, and porous pressing plate is positioned at below charging aperture, will after adding solvent Porous pressing plate continues to move down, the position of porous pressing plate is fixed on above stirring paddle by positioning boss and below charging aperture between Position, porous pressing plate is all pressed in solvent swimming in the pulp above solvent, and porous pressing plate is compacted pulp, the most Solvent is had on pore pressure plate.Pulp is pressed into solvent impregnated certain time, treats disappearing solvent on porous pressing plate, all inhaled by pulp Receive, impregnate swelling end.After impregnating swelling completing, porous pressing plate being mentioned, bearing pin is fixed on the first position of positioning hole, opens and stirs Mix motor, start stirring mixing.
Described stirring paddle is provided with blade, and blade proximal ends is connected with shaft, and the distal shaft end of blade is provided with lamellar moving knife, dynamic One side of cutter does not contacts near kettle sidewall and with kettle sidewall;
Preferably, spaced set between a side and the kettle sidewall of described moving knife;
It is furthermore preferred that described moving knife is strip lamellar, moving knife is parallel to shaft and arranges.
Due to cellulose paste thickness, the material of blade outer layer is difficult to stirring, stirring dead band easily occurs, in still in still Wall also easily bridging.Distal shaft end at blade is provided with moving knife, and the material scraper of still inwall can be got off by moving knife blade, improves stirring Effect.After the distal shaft end of blade is provided with moving knife, the power of motor load relatively normal agitation still of stirred tank adds 2-3 times.
Described stirring paddle is provided with multi-layer oar blade, the most interlaced setting of multi-layer oar blade.
Being provided with inverted cone bottom bottom described stirred tank, the vertex of a cone is provided with discharging opening, and orlop blade upper end is positioned at kettle Portion is provided with moving knife, and orlop blade lower end is positioned at inside bottom and is provided with first side, and upper end, first side is connected with moving knife lower end Connecing, first side does not contacts near bottom wall and with bottom wall;
Preferably, described orlop blade is additionally provided with second side, and one end, second side is connected with rotary shaft, second side The other end is connected with lower end, first side, is provided with vertical cutter, the upper end of described vertical cutter and the second side below described second side Limit connects, and the lower end of vertical cutter tilts towards shaft.
Use inverted cone bottom to facilitate the discharge of material in stirred tank, also improve the mixing effect of stirred tank simultaneously.The One side matches with bottom wall and also is able to prevent material bridging on the wall of taper bottom as arranging.Vertical cutter can be by bottom Material is released to discharging opening direction, facilitates the discharge of material.
Described stirred tank kettle medial wall is provided with at least one blend stop, and described blend stop is parallel to shaft and arranges, blend stop Upper end flush with the moving knife upper end of the superiors blades, the lower end of blend stop flushes with the moving knife lower end of orlop blade, blend stop with Between moving knife blade close to each other and do not contact.
Blend stop can stop the material of thickness, prevents material from rotating together with stirring paddle entirety.The setting of blend stop Make to produce between moving knife and blend stop a shear action, material is served the effect of mixing.
The present invention has the advantage that with good effect: owing to using technique scheme, the pretreatment of cellulose pulp Material more uniform;Sheet steeping solvent swell, mixing and pulping complete in a still, save equipment investment and save work Journey puts into, and saves manufacture, energy consumption and administration fee use, shortens cellulose pulp pretreating process flow process.
Accompanying drawing explanation
Fig. 1 is the cellulose pulp pre-processing device structural representation of the present invention
Fig. 2 is porous pressure plate structure schematic diagram
In figure:
1, motor 2, kettle cover 3, shaft 4, kettle
5, bottom 6, porous pressing plate 7, pull bar 8, pulp feed pipe
9, solvent feed pipe 10, discharging opening 11, ground floor blade 12, orlop blade
13, moving knife 14, first side 15, vertical cutter 16, blend stop
17, discharging helical axis 18, second side 61, central through hole 71, first position hole
72, the second location hole 73, positioning boss
Detailed description of the invention
As it is shown in figure 1, cellulose pulp pre-processing device of the present invention includes that a vertical stirred tank, kettle 4 are arranged over one Kettle cover 2, kettle cover 2 is provided with motor 1, and shaft 3 is connected with motor 1, and shaft 3 stretches in kettle 4, and shaft 3 is provided with and stirs Mixing oar, in kettle 4, stirring paddle is arranged over a porous pressing plate 6, and porous pressing plate 6 is provided with a lot for the hole making solvent pass through Hole, porous pressing plate 6 matches with kettle 4 cross section setting, and porous pressing plate 6 is provided with a central through hole 61, during shaft 3 passes Heart through hole 61 is arranged, and porous pressing plate 6 can move up and down in kettle 4.
Being provided with the pull bar 7 parallel with shaft 3 on the upside of porous pressing plate 6, the kettle cover 2 of stirred tank is provided with tie rod hole, pull bar 7 Through tie rod hole and movable with kettle cover 2 be connected.Further, multiple pull bar 7, pull bar 7 can be vertically provided with on the upside of porous pressing plate Around the uniform setting of shaft 3.Pull bar 7 can be provided with multiple hole, location being perpendicular to pull bar 7, dismountable dress in hole, location Have bearing pin, the length of bearing pin more than the diameter of tie rod hole, when position in hole, bearing pin is installed time, bearing pin be prevented from pull bar 7 by Falling in action of gravity, the position between pull bar 7 and kettle cover 2 is relatively fixed by bearing pin.By bearing pin being arranged on different determining In hole, position, with the position relationship between adjusting yoke 7 and kettle cover 2, thus porous pressing plate 6 can be regulated in the position within kettle 4.
Further, the sidewall at kettle 4 is provided with feed pipe, and feed pipe is connected with kettle 4, one end of feed pipe and still The charging aperture of body 4 sidewall is connected, and the other end of feed pipe extends obliquely, and the height of the other end of feed pipe is higher than charging aperture Upper end, stirrer paddle is positioned at below charging aperture.The sidewall of kettle 4 can be provided with a feed pipe, it is also possible to be provided with two Or plural feed pipe.It is typically provided 8 two different feed pipes of solvent feed pipe 9 and pulp feed pipe.Solvent passes through It is internal that solvent feed pipe 9 joins kettle 4, and relatively large pulp is joined in kettle 4 by the pulp feed pipe 8 being relatively large in diameter Portion.Feed pipe is arranged on the use facilitating porous pressing plate 6 on the sidewall of kettle 4.Pull bar 7 is provided with the first hole, location 71 and second Hole 72, location, the distance between the first hole 71, location and porous pressing plate 6 is less than or equal to the distance between charging aperture upper end and kettle cover 2, Distance between the second hole 72, location and porous pressing plate 6 is more than or equal to the distance between charging aperture lower end and kettle cover 2.It is fed at pulp Before, pull bar 7 is pulled up, makes the first hole, location 71 be positioned at the top of kettle cover 2, bearing pin is installed in the first hole, location 71. Thus can make the porous pressing plate 6 position above charging aperture and between kettle cover 2.After charging, pull bar 7 is moved down, Make the second hole, location 72 be placed exactly in the top of kettle cover 2, bearing pin is arranged in the second hole, location 72.Porous pressing plate 6 is to moving down The dynamic lower section being positioned at charging aperture, adds solvent.On pull bar 7, the second hole 72, location is arranged over positioning boss 73, positioning boss The width of 73 is more than the diameter of tie rod hole.And the distance between porous pressing plate 6 is less than or equal between stirrer paddle the top and kettle cover 2 Distance.When positioning boss, porous pressing plate 6 is above stirrer paddle and between charging aperture lower end.Now porous pressing plate 6 is complete Submergence is in a solvent, corresponding, and pulp is pressed in solvent the most completely.Sub-fraction pulp is prevented not to be drawn onto completely molten Agent, during stirring, porous pressing plate 6 moves up, and makes the first hole, location 71 expose, fixes with bearing pin, i.e. charging mentioned by porous pressing plate 6 On mouth.Start stirring mixing.
The kettle 4 of cellulose pulp pre-processing device of the present invention can be cylindrical, and stirring paddle can be provided with monolayer blade, also Multi-layer oar blade can be provided with.When stirring paddle is provided with multi-layer oar blade, the most interlaced setting of blade, blade proximal ends with Shaft 3 connects, and the distal shaft end of blade is provided with moving knife 13, and moving knife 13 is parallel to shaft 3 and arranges, the side of moving knife 13 and blade Connecting, the opposite side of moving knife 13 is provided with the blade parallel with shaft 3, and blade is near kettle 4 sidewall but and between kettle 4 sidewall Do not contact.In order to improve pulverizing and the mixing effect of pulp, the blade of stirring paddle can first 45 ° tiltedly reach kettle 4 adjacent sidewalls, Again to the inclined 45° angle of direction of rotation of shaft 3.Due to cellulose paste thickness, the material of the short outer layer of blade is difficult to stirring, Kettle 4 is internal easily occur stirring less than dead band, the also easily bridging of kettle 4 medial wall.Distal shaft end at blade is provided with and stirs The moving knife 13 that axle 3 is parallel, it is possible to got off by the material scraper of kettle 4 medial wall, improves mixing effect.
Stirred tank kettle 4 medial wall is provided with at least one blend stop 16, and blend stop 16 is parallel to shaft and arranges, blend stop 16 Upper end flushes with moving knife 13 upper end of the superiors blade 11, and the lower end of blend stop 16 is neat with moving knife 13 lower end of orlop blade 12 Flat, between blend stop 16 and moving knife 13 blade, gap is arranged.The setting of blend stop 15 makes to produce one between moving knife 13 and blend stop 16 and cuts Cut effect, it is possible to the material of thickness is stopped, prevent material from rotating together with stirring paddle entirety, improve the mixing of stirred tank Effect
Being provided with inverted cone bottom 5 bottom stirred tank, bottom 5 is connected with kettle 4, and the vertex of a cone of bottom 5 is provided with discharging opening 10, Orlop blade 12 upper end is positioned at kettle 4 inside and is provided with moving knife 13, and orlop blade 13 lower end is positioned at inside, bottom 5 and is provided with first Side 14, upper end, first side 14 is connected with moving knife 13 lower end, first side 14 near bottom 5 wall and and bottom 5 wall between Do not contact.The material scraper hung on kettle 5 wall can be got off by the first side wall 14, and the effect with moving knife 13 is identical.Use back taper Shape bottom 5 facilitates the discharge of material in stirred tank, also improves the mixing effect of stirred tank simultaneously.Orlop blade 12 is all right Being further provided with second side 18, one end, second side 18 is connected with rotary shaft 3, second side 18 other end and first side 14 Lower end is connected, and is provided with vertical cutter 15 below second side 18, and the upper end of vertical cutter 15 is connected with second side 18, vertical cutter 15 times End tilts towards shaft 3.The material of bottom 5 can be released by vertical cutter 15 to discharging opening 10 direction, facilitates the discharge of material.
In order to further facilitate the discharge of material, shaft 3 lower end can be provided with discharging helical axis 17, on discharging helical axis 17 Being provided with external screw thread, discharging helical axis 17 is positioned at below bottom 5 orlop blade 12, the external screw thread of discharging helical axis 17 and discharging It is equipped with between mouth 10.Stirred tank stirring work when, discharging helical axis 17 is along with shaft 3 rotating Vortex, discharging spiral shell Thread belt animal material in spin axis 17 moves upward, and prevents material from discharging from discharging opening 10.After stirred tank Beater operator completes, Shaft 3 drives discharging helical axis 17 to rotate round about, and the screw thread on discharging helical axis 17 just drives materials downward, Material is discharged from discharging opening 10.
The work process of this example: pull pull bar 7 to make the first hole, location 71 be positioned at the top of kettle cover 2, bearing pin is installed to In first hole 71, location, the position of porous pressing plate 6 is fixed on the top of charging aperture.Pulp is added from pulp feed pipe 8 Internal to kettle 4.Bearing pin is pulled down from the first hole 71, location, pull bar 7 is moved down, bearing pin is arranged on the second hole, location 72, from solvent feed pipe 9, add solvent, solvent flows downward through the hole of porous pressing plate 6.Continue to move down pull bar 7, Making positioning boss 73 contact with kettle cover 2, floating pulp in a solvent is compressed by porous pressing plate 6.Place certain time, many Pore pressure plate 6 pull-up, is fixed on bearing pin in the first hole, location 71.Start stirring motor, complete stirring of high polymer pulp pretreatment Mix blend step.Motor 1 drives the stirrer paddle on shaft 3 to rotate, by pulp pulping, mix and blend.Pulp pretreatment work After completing, motor 1 drives shaft 3 to reversely rotate, and under the common effect of vertical cutter 15 and discharging propeller 17, material is from going out Material mouth 10 is discharged.
Above one embodiment of the present of invention is described in detail, but described content has been only the preferable enforcement of the present invention Example, it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvement Deng, within all should still belonging to the patent covering scope of the present invention.

Claims (16)

1. cellulose pulp pre-processing device, including vertical stirred tank, kettle is arranged over a kettle cover, and kettle cover is provided with motor, Shaft is connected with motor, and shaft stretches in kettle, and shaft is provided with stirring paddle, it is characterised in that: stir in described kettle Mixing oar and be arranged over a porous pressing plate that can move up and down in kettle, porous pressing plate is provided with a central through hole, and shaft passes Central through hole is arranged, and described porous pressing plate matches with kettle cross section setting, and described porous pressing plate is provided with multiple hole;Described many Pore pressure plate stops and is fixed on primary importance or the second position, and described primary importance is between charging aperture upper end and kettle cover, described Between the second position is above charging aperture lower end and stirrer paddle, before pulp feeds, porous pressing plate is made to be positioned at first Put, after charging, porous pressing plate is moved down, make porous pressing plate be positioned at the second position, add solvent, make porous pressing plate complete In a solvent, pulp is pressed in solvent the most completely in submergence, after impregnating swelling completing, porous pressing plate is moved upwards up to first Put, start stirring mixing.
Cellulose pulp pre-processing device the most according to claim 1, it is characterised in that: be provided with on the upside of porous pressing plate for Driving the positioner that porous pressing plate moves up and down, described positioner lower end is connected on the upside of porous pressing plate, positioner Upper end and kettle cover or kettle upper end is movable is connected.
Cellulose pulp pre-processing device the most according to claim 2, it is characterised in that: described positioner is pull bar, The kettle cover of stirred tank is provided with tie rod hole, and pull bar is through tie rod hole and movable with kettle cover is connected.
Cellulose pulp pre-processing device the most according to claim 3, it is characterised in that: it is provided with multiple on the upside of porous pressing plate The pull bar parallel with shaft, pull bar is around the uniform setting of shaft.
Cellulose pulp pre-processing device the most according to claim 2, it is characterised in that: pull bar is provided with multiple being perpendicular to The hole, location of pull bar, pull bar is by being connected through the bearing pin in hole, location with kettle cover, and the length of described bearing pin is straight more than tie rod hole Footpath.
6. according to the cellulose pulp pre-processing device described in claim 1-5 any one, it is characterised in that: described kettle side Wall is provided with feed pipe, and one end of feed pipe is connected with the charging aperture of kettle sidewall, and the other end of feed pipe extends obliquely, enters On the kettle sidewall that material mouth is arranged between stirrer paddle and kettle cover, between charging aperture upper end and kettle cover, it is provided with receiving porous pressing plate Spacing.
Cellulose pulp pre-processing device the most according to claim 6, it is characterised in that: porous pressing plate passes through pull bar respectively On the first hole, location or the second hole, location stop and be fixed on primary importance or the second position, between the first hole, location and porous pressing plate Distance be more than or equal to less than or equal to distance between charging aperture upper end and kettle cover, the distance between the second hole, location and porous pressing plate Distance between charging aperture lower end and kettle cover.
Cellulose pulp pre-processing device the most according to claim 6, it is characterised in that: described porous pressing plate stops fixing In primary importance, the second position or the 3rd position, described primary importance between charging aperture upper end and kettle cover, described second Between above charging aperture lower end and stirrer paddle, described 3rd position be positioned at below the second position with stirrer paddle above Between.
Cellulose pulp pre-processing device the most according to claim 8, it is characterised in that: porous pressing plate passes through pull bar respectively On the first hole, location, the second hole, location or positioning boss stop and be fixed on primary importance, the second position or the 3rd position, first Distance between hole, location and porous pressing plate is less than or equal to the distance between charging aperture upper end and kettle cover, the second hole, location and many pore pressure Distance between plate is more than or equal to the distance between charging aperture lower end and kettle cover, and pull bar upper end is additionally provided with positioning boss, and positioning boss is Width is more than the projection of the diameter of tie rod hole, and positioning boss is positioned at above the second hole, location, described positioning boss and porous pressing plate Between distance less than or equal to stirrer paddle distance topmost and between kettle cover.
Cellulose pulp pre-processing device the most according to claim 6, it is characterised in that: described stirring paddle is provided with blade, Blade proximal ends is connected with shaft, and the distal shaft end of blade is provided with lamellar moving knife, a side of moving knife near kettle sidewall and Do not contact with kettle sidewall.
11. cellulose pulp pre-processing devices according to claim 10, it is characterised in that: a side of described moving knife And spaced set between kettle sidewall.
12. cellulose pulp pre-processing devices according to claim 10, it is characterised in that: described moving knife is strip sheet Shape, moving knife is parallel to shaft and arranges.
13. according to the arbitrary described cellulose pulp pre-processing device of claim 10 to 12, it is characterised in that: described stirring paddle It is provided with multi-layer oar blade, the most interlaced setting of multi-layer oar blade.
14. cellulose pulp pre-processing devices according to claim 13, it is characterised in that: it is provided with bottom described stirred tank Inverted cone bottom, the vertex of a cone is provided with discharging opening, and orlop blade upper end is positioned at inside kettle and is provided with moving knife, position, orlop blade lower end Being provided with first side inside bottom, upper end, first side is connected with moving knife lower end, and first side is near bottom wall and and still Diapire does not contacts.
15. cellulose pulp pre-processing devices according to claim 14, it is characterised in that: described orlop blade also sets Having second side, one end, second side to be connected with rotary shaft, the second side other end is connected with lower end, first side, and described Being provided with vertical cutter below dual side-edge, the upper end of described vertical cutter is connected with second side, and the lower end of vertical cutter tilts towards shaft.
16. according to the arbitrary described cellulose pulp pre-processing device of claim 10 to 12, it is characterised in that: described stirred tank Kettle medial wall is provided with at least one blend stop, and described blend stop is parallel to shaft and arranges, the upper end of blend stop and the superiors' blade Moving knife upper end flush, the lower end of blend stop flushes with the moving knife lower end of orlop blade, mutually leans between blend stop and moving knife blade Closely and do not contact.
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