CN108867137B - A kind of single screw rod fiberizer - Google Patents
A kind of single screw rod fiberizer Download PDFInfo
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- CN108867137B CN108867137B CN201810696157.0A CN201810696157A CN108867137B CN 108867137 B CN108867137 B CN 108867137B CN 201810696157 A CN201810696157 A CN 201810696157A CN 108867137 B CN108867137 B CN 108867137B
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- machine barrel
- screw rod
- shear pin
- pin group
- impeller
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
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Abstract
The present invention relates to a kind of single screw rod fiberizers, screw rod rotation is driven after being slowed down by motor via reducer, screw rod is mounted in the cylindrical machine barrel with radial pin, the feed inlet of tangential admission is housed in screw front end, by spiral propeller by the mandatory feeding of fibrous raw material, under screw extruding effect, pass sequentially through the feed zone of screw rod, the discharge zone of several extrusion shearing Qu Bingcong screw rod latter ends is discharged, during defibrination, main shear pin group forms main shearing elements with several impellers respectively, the pair shear pin group and conveyor screw notch form secondary shearing elements, extrusion shearing effect is implemented to material, fibrous raw material is gradually processed into satisfactory paper pulp.The inventive structure is simple, manufacturing cost is lower, no-load power consumption reduces, operation and maintenance is more convenient.
Description
Technical field
The invention belongs to paper pulp papermaking fields, are related to plant fiber material production fiberizer, in particular to a kind of single spiral shell
Bar fiberizer.
Background technique
Defibrination and mashing are mechanical, are the key equipments of enterprises in pulp and paper industry, while being also the higher mechanical equipment of energy consumption.By
Essentially identical in the mechanical working principle of defibrination and mashing, only running parameter adjustment requirement is different, so can be by this kind of equipment
It is referred to as fiberizer, is also referred to as beater dedicated for the fiberizer of mashing.
Currently, common defibrination and mashing machinery can be divided into disc, cone and cylinder according to the shape of its rotor
Fiberizer.Disc fiberizer (abbreviation disc mill) is broadly divided into single-deck grinding machine, double disc refiner and triple disc refiner machine, conical defibrination
Machine is divided into single taper thread grinding pulp grinder, bipyramid fiberizer and third hand tap fiberizer.Disc mill is the central feeding from disk, the periphery from disk
Discharging；Conical fiberizer is from the small endfeed of circular cone, big end discharging.Disc centre and circular cone small end speed are lower, and slurry holds
Easily enter between grinding；In addition, disc mill, conical fiberizer and the rotor of cylindrical pulping machine and the refining plate interval of stator are equal
It is adjustable, but disc mill and conical grinding plate of pulping machine gap adjustment are relatively simple.And cylindrical pulping machine charging and discharging
Speed it is equal, refining plate interval adjustment it is more complicated.Disc mill and circular cone fiberizer use relatively broad due to the above reasons,.
In general, the production capacity of different type fiberizer depends on the product of effective defibrination area and revolving speed.According to current
The design speed (750~1500r/min) of various fiberizers, when effective defibrination area equation, available single-deck grinding machine turns
Sub- largest outside diameter, triple disc refiner machine, single conical refiner, biconial fiberizer, third hand tap runner outer diameter successively successively decrease, cylinder
Shape runner minimum outer diameter；Runner size reduces, and can reduce the quality and rotary inertia of rotor, it is meant that can
To reduce the no-load power consumption of fiberizer, achieve the purpose that reduce energy consumption, this point is confirmed in production.Guaranteeing to grind
Under the premise of starching quality and efficiency, the energy consumption of fiberizer is reduced, is always the target of the unremitting pursuit of enterprises in pulp and paper industry.
In addition, high consistency refining equipment double-screw pulp-milling (also known as double screwy roller grinded-paste machine, double helix thread rolling machine) is adopted
With extrusion defibrination, pulping material is milled into slurry by squeezing, rubbing.With the disc mill of identical production capacity, cone mill
Pulp grinder is compared with cylindrical pulping machine, and since its rotor moment of inertia is smaller, revolving speed is lower (300~400r/min), unloaded energy
Consumption is lower, has more apparent energy-conserving action.But since its refining principle is limited, the brooming effect of slurry is poor, can only
It is roughly ground applied to slurry, disc mill and conical fiberizer can't be replaced completely.
But double-screw pulp-milling is since structure is more complicated, when manufacturing big specification equipment there is some difficulties, than
It is that gear life is difficult to meet the requirement of high reliability in design transmission case such as since two screw rods center is away from smaller, torque is larger；
Further, since screw slenderness ratio is larger, the torsional deflection of screw rod and service life are shorter also as a restraining factors.
In order to solve problem above, the present invention uses for reference the cold feed extruder that rubber industry is used for compounding rubber, devises
A kind of single screw rod fiberizer, it is therefore an objective to replace double-screw pulp-milling.The characteristics of single screw extrusion machine is that structure is simple, transmission case and
Barrel configuration is more obvious than double screw extruder simple, and manufacturing cost reduces, and no-load power consumption further decreases.
By the retrieval to patent document, two patent documents about single screw rod fiberizer are found.Comparison
File 1 is U.S. Huber, Gordon R. and Schmelzle, the Lawrence Screw Refiner (spiral shell that E.1990 year invents
Bar fiberizer, US 4963033), which is a taper single screw rod fiberizer, be integrally divided into four sections, every section of screw pitch by
Step reduces, and four zone screw is equipped with longitudinal gusset, and corresponding machine tube inner wall first and third section are equipped with longitudinal rib, and second and the
Four sections are equipped with helicla flute.The characteristics of invention is that structure is complicated, and spiro rod length is big, and rigidity is poor, especially the rib of inside machine barrel
Item and helicla flute are difficult to, and bring difficulty to practical application.
Documents 2 are that the patent name of Changzhou Wujin East China special fibre Manufacturing Co., Ltd invention grinds for single screw rod
Pulp grinder, the utility model patent of Publication No. CN204638324U.The utility model is using cylindrical constant lead screw, in spiral shell rib
The top surface opposite with machine barrel is equipped with scraggly array, and machine barrel inner surface also has corresponding rough and uneven in surface array, machine barrel
Pulping material is milled into paper pulp by these arrays when relative motion of the screw rod in machine barrel with the gap very little of screw rod.
Its main feature is that the convex-concave array of machine tube inner wall is difficult to, if convex-concave array is too small, it is easy to be worn, service life compared with
It is short；If array is excessive, it is difficult to guarantee defibrination quality；So the patent does not also promote and apply.
The present invention will overcome the shortcomings that above single screw rod fiberizer, not use the mutual rubbing action between screw rod and machine barrel
Based on defibrination mode, using the smooth barrel inner wall of manufacture easy to process, using being fixed on the pin and screw rod on machine barrel
The defibrination mode of the special impeller composition element for refining of rotation, reaches ideal refining effect.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of reasonable in design, manufacture easy to process,
The single screw rod fiberizer of high reliablity can further decrease no-load power consumption, reduce defibrination production cost, improve refining effect.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of single screw rod fiberizer, including base, machine barrel seat, machine barrel lid, front-end bearing pedestal, rear bearing block, screw rod, shaft coupling
Machine barrel seat, front-end bearing pedestal and rear bearing block, front-end bearing pedestal is fixedly mounted in device, retarder, yielding coupling and motor on base
Passing through fore bearing and rear bearing installation screw rod respectively with rear bearing block, machine barrel seat and machine barrel lid are bolted by machine barrel connection,
The front end of screw rod is connected to retarder by shaft coupling, and retarder is connected to motor by yielding coupling, covers and sets in machine barrel
It is equipped with feed inlet, is provided with discharge port on machine barrel seat, which is connected to discharging auger conveyor, it is characterised in that: institute
It states machine barrel lid and is connect with the machine barrel seat by open-and-close mechanism opposite opened, the screw rod is disposed with screw rod front from front to back
Ring, the first feed auger, the second feed auger, third feed auger and conveyor screw, on the conveyor screw from front to back
3~5 impellers are disposed with, is covered in the machine barrel seat and machine barrel and is provided with radial pin at the impeller location
Group, the radial direction pin group protrude into machine barrel seat and machine barrel lid, the conveyor screw and several impellers respectively with radial pin group
Form several extrusion shearing areas.
Moreover, the radial direction pin group includes main shear pin group and secondary shear pin group, the main shear pin component
Do not form main shearing elements with several impellers, the notch of the pair shear pin group and conveyor screw forms secondary shearing elements.
Moreover, main shear pin group is gradually reduced from front to back with the axial distance of corresponding impeller.
Moreover, to correspond to setting at main shear pin group and secondary shear pin group position jagged for the conveyor screw.
Moreover, the distance at end to the conveyor screw slot bottom end of the main shear pin group and secondary shear pin group be 2~
5mm, and nominal diameter dx=(0.085~0.125) D, D of pin is cylinder bore.
Moreover, the main shear pin group includes several main shear pins, the secondary shear pin group includes several
Secondary shear pin, several main shear pins and secondary shear pin are evenly distributed on machine barrel lid and machine barrel seat radial direction.
Moreover, each impeller on the conveyor screw is radially evenly arranged with several skewed slots, skewed slot width from
Front to back gradually reduces, and impeller radially skewed slot and radial angle are about 25 °, and impeller axial chute and axis angle are about 45 °.
Moreover, the feed inlet is divided into feed inlet upper section and feed inlet lower section, the feed inlet axis and the first charging spiral shell
There are eccentricities between kernel of section vertical line for swing, and the feed inlet machine barrel seat inner wall eccentric side is provided with arc groove,
The cup depth of the arc groove gradually reduces.
The advantages and benefits of the present invention are:
1, single screw rod fiberizer of the invention, machine barrel lid are connect with machine barrel seat by open-and-close mechanism opposite opened, and screw rod is in the past
Baffle ring, the first feed auger, the second feed auger, third feed auger and conveyor screw before screw rod are disposed with after,
3~5 impellers are disposed on conveyor screw from front to back, covers in machine barrel seat and machine barrel and is all provided at the impeller location
Be equipped with radial pin group, radial pin group protrudes into machine barrel seat and machine barrel lid, conveyor screw and several impellers respectively with radial peg
Nail group forms several extrusion shearing areas, and structure design is simply compared with double-screw pulp-milling, due to only one spiral shell of the invention
The structure of bar, machine barrel is greatly simplified；Double-screw pulp-milling due to need two rotating Vortexes, determine center away from transmission case, pass
The structure of dynamic case is more complicated, needs two groups of driving members of deceleration and transfer, and single screw rod fiberizer transmission case only needs to slow down
The design of function, transmission case is greatly simplified, also can choose the suitable standard retarder of transmission ratio.With existing single screw rod
Fiberizer is compared, and the present invention does not have rib, helicla flute and convex-concave array in machine barrel Nell wall, but uses in smooth machine barrel
Wall, convenient for manufacture processing, and save the cost, cost of the invention are about the 65%~80% of double-screw pulp-milling.
2, single screw rod fiberizer of the invention, radial pin group include that main shear pin group and secondary shear pin group, master cut
It cuts pin group and forms main shearing elements with several impellers respectively, the notch of secondary shear pin group and conveyor screw forms secondary shearing member
Part constitutes a pair of dynamic and static cutter, increases the crushing and refinement to fibre material.
3, single screw rod fiberizer of the invention, main shear pin group gradually subtract from front to back with the axial distance of corresponding impeller
It is small, the manufacturing cost of screw rod is reduced, and rigidity increases, increases and the extrusion shearing of fibrous material is operated, it is real
The gradually refinement of existing fibrous material crushes, and reaches refining effect.
4, single screw rod fiberizer of the invention, conveyor screw corresponds to be set at main shear pin group and secondary shear pin group position
It is equipped with notch, so that screw rod rotation Shi Buyu pin interferes, guarantees extrusion shearing effect.
5, single screw rod fiberizer of the invention, main shear pin group include several main shear pins, secondary shear pin group packet
Several secondary shear pins are included, several main shear pins and secondary shear pin are evenly distributed on machine barrel lid and machine barrel seat radial direction side
To abundant refinement of the guarantee fibrous material in shear extrusion area.
6, single screw rod fiberizer of the invention, each impeller on conveyor screw be radially evenly arranged with it is several tiltedly
Slot, skewed slot width gradually reduce from front to back, and impeller radially skewed slot and radial angle are about 20~30 °, impeller axial chute
It is about 45 ° with axis angle, realizes and gradually the shearing of fibrous material is refined.
7, single screw rod fiberizer of the invention, feed inlet are divided into feed inlet upper section and feed inlet lower section, feed inlet axis with
There are eccentricities between first feed auger radial section center vertical line, and feed inlet machine barrel seat inner wall eccentric side is provided with circle
The cup depth of arc slot, arc groove gradually reduces, and increases machine barrel content material space, and the material of entrance is made in machine tube inner wall pressure
It under, is easily accessible in the helicla flute of feed screw, to increase the feed quantity of material.
8, single screw rod fiberizer of the invention, no-load power consumption reduce: due to only one screw rod of single screw rod fiberizer, transmission
Box structure is simple, and driving member number significantly reduces, so no-load power consumption reduces, it is according to a preliminary estimate, empty compared with double-screw pulp-milling
1/3 or so can be reduced by carrying power consumption.Equipment cost and no-load power consumption reduce, and can further decrease production cost.
9, single screw rod fiberizer of the invention, structure is simple, and equipment volume and size reduce；Use machine barrel lid hydraulic cylinder
Open-and-close mechanism, in addition screw rod uses modular construction, the working service of equipment is more convenient.Vulnerable part is mainly pin, screw rod
The interior lining tile of element, machine barrel lid and machine barrel seat, the replacement of vulnerable part are more convenient.
Detailed description of the invention
Fig. 1 general structure schematic diagram of the present invention；
Fig. 2 a open-and-close mechanism structural schematic diagram of the present invention, Fig. 2 b are open-and-close mechanism structural schematic diagram (machine barrel lid open shape
State)；
Fig. 3 pin barrel of the present invention and screw rod axial sectional view；
The A-A sectional view of Fig. 4 Fig. 3 of the present invention；
The B-B sectional view of Fig. 5 Fig. 3 of the present invention；
Fig. 6 a is the first impeller schematic diagram of the invention, and Fig. 6 b is the second impeller schematic diagram of the invention；
Fig. 7 a is the assembling relationship figure of pin pair, and Fig. 7 b is the structural schematic diagram of pin pair.
Description of symbols
1- motor, 2- yielding coupling, 3- retarder, 4- shaft coupling, 5- front-end bearing pedestal, 6- feed inlet, 7- machine barrel lid, 8-
Before open-and-close mechanism, 9- machine barrel seat, 10- base, 11- discharging auger conveyor, 12- rear bearing block, 16- machine barrel connection bolt, 20-
Baffle ring, the first feed auger of 22-, the second feed auger of 23-, 24- third feed auger, 25- convey spiral shell before bearing, 21- screw rod
Rotation, the first impeller of 26-, the second impeller of 27-, 28- third impeller, the 4th impeller of 29-, 30- screw mandrel, 31- rear bearing, 40-
Radial pin group, 41- pin, 42- nut, 61- feed inlet upper section, 62- feed inlet lower section, lining tile on 63- feed inlet, 64- into
Lining tile under material mouth, 71- machine barrel lid housing, 72- machine barrel cover lining watt, 81- oil cylinder hinged-support, 82- machine barrel lid support, 83- oil cylinder,
84- link connector pin, 85- machine barrel lid folding pin, 86- machine barrel cover connecting rod, 91- machine barrel seat housing, 92- machine barrel seat pad watt, 93- the
Two crush zone strainers, the first crush zone of 94- strainer, 95- feed inlet strainer.
Specific embodiment
Below by specific embodiment, the invention will be further described, and it is not limit that following embodiment, which is descriptive,
Qualitatively, this does not limit the scope of protection of the present invention.
As shown in Figure 1, a kind of single screw rod fiberizer, including base 10, machine barrel seat 9, machine barrel lid 7, front-end bearing pedestal 5, rear axle
Seat 12, screw rod, shaft coupling 4, retarder 3, yielding coupling 2 and motor 1 are held, machine barrel seat, fore bearing are fixedly mounted on base
Seat and rear bearing block, front-end bearing pedestal and rear bearing block pass through fore bearing 20 respectively and rear bearing 31 installs screw rod, machine barrel seat and machine
Cover connects bolt 16 by machine barrel and connects, and the front end of screw rod is connected to retarder by shaft coupling, and retarder passes through elasticity connection
Axis device is connected to motor, covers in machine barrel and is provided with feed inlet 6, is provided with discharge port on machine barrel seat, which is connected to
Discharge auger conveyor 11.
Innovation of the invention is: machine barrel lid is connect with machine barrel seat by 8 opposite opened of open-and-close mechanism, and screw rod arrives in the past
After be disposed with baffle ring 21 before screw rod, the first feed auger 22, the second feed auger 23, third feed auger 24 and conveying spiral shell
Rotation 25, is disposed with 4 impellers from front to back on conveyor screw, covers at the impeller location in machine barrel seat and machine barrel
Be provided with radial pin group 40, pin group protrudes into machine barrel seat and machine barrel lid, conveyor screw and several impellers respectively with radial direction
Pin group forms several extrusion shearing areas.
The power that motor provides is passed to retarder by yielding coupling, after slowing down, revolving speed reaches 100~
400r/min drives the screw rod of fiberizer to rotate by shaft coupling.Due to being single screw rod transmission, retarder can be using a biography
It moves than suitable standard secondary gear or worm gear reducer.In order to which assembly or disassembly is convenient, machine barrel uses split subdivision
Formula structure is divided into machine barrel lid and machine barrel seat two parts；In order to improve the production capacity of fiberizer, cylinder bore D up to 500~
600mm, screw size is big, and machine barrel lid weight is very big, opens and closes machine barrel lid using open-and-close mechanism, open-and-close mechanism is divided into installation
Two identical parts on rear side of machine barrel.Discharging auger conveyor passes through base and the slurry processed is transported to formulation
Position.
It is as shown in Figure 2 a the structural schematic diagram of open-and-close mechanism, open-and-close mechanism includes oil cylinder hinged-support 81, machine barrel lid support
82, oil cylinder 83, link connector pin 84, machine barrel lid folding pin 85 and machine barrel cover connecting rod 86, oil cylinder pass through pin shaft and oil cylinder hinged-support
Hingedly, machine barrel lid is hinged with machine barrel lid support by machine barrel lid folding pin, and machine barrel lid support is fixedly connected with base, machine barrel Gai Zuo
End is fixedly connected with machine barrel cover connecting rod, and machine barrel cover connecting rod is hinged by the telescopic rod of link connector pin and oil cylinder.When needing to open machine
When cylinder, machine barrel connection bolt is removed by the contraction of two oil cylinder telescopic rods, machine barrel lid is rotated by 90 ° to left and right counterclockwise, so that it may
Machine barrel is easily opened, as shown in Figure 2 b.
Fig. 3 is pin barrel of the present invention and screw rod axial sectional view, and machine barrel mainly has by machine barrel lid housing 71, machine barrel cover lining
Watt 72, machine barrel seat housing 91, machine barrel seat pad watt 92, the second crush zone strainer 93, the first crush zone strainer 94, feed inlet strainer 95
It is formed with several radial pin groups；Screw rod is disposed with baffle ring, the first feed auger, the second charging spiral shell before screw rod from front to back
Rotation, third feed auger, conveyor screw and screw rod central spindle 30, set gradually from front to back on conveyor screw the first impeller 26,
Second impeller 27, third impeller 28 and the 4th impeller 29.
First feed auger, the second feed auger, third feed auger constitute feed zone jlq, at 3 of feed zone jlq
The screw pitch and groove depth of feed auger gradually from large to small, to generate 2.5~4 compression ratio (different pulping materials, required pressure
Contracting is than different), make the fibrous material entered from feed inlet by after compressive deformation, into extrusion shearing area.
In order to make material gradually shear refinement, conveyor screw respectively with the first impeller, the second impeller, third impeller and the 4th
The first extrusion shearing area jjq1, the second extrusion shearing area jjq2, third extrusion shearing area jjq3 and the 4th is formed between impeller to squeeze
Press shear zone jjq4.
Radial pin group includes main shear pin group and secondary shear pin group, main shear pin group respectively with several impeller shapes
At main shearing elements, the first impeller, the second impeller, third impeller and the 4th impeller divide with the axial distance of corresponding main shear pin
It Wei not zj1, zj2, zj3 and zj4.
Material into the first extrusion shearing area jjq1 pushes the latter from the helicla flute of proper flow by pin group first
Helicla flute (first secondary shearing elements), when pin group passes through spiral shell rib, due to the gap very little of pin group and spiral shell rib, material by
Extrusion shearing；When material passes through the first impeller and pin group (the first main shearing elements), by more violent extruding
Shearing.There are a pair of main shearing elements and a pair of secondary shearing elements in each extrusion shearing area.
Enter the second extrusion shearing area jjq2 by the material of the first impeller.The composition of second extrusion shearing area jjq2 and the
One extrusion shearing area jjq1 is similar, and only the groove width yc2 of the second impeller is less than one's mother's sister impeller groove width yc1, and the second main shearing is first
The axial distance zj2 of part reduces, and the screw pitch of the normal erect type spin of the second extrusion shearing area jjq2 can be with the first extrusion shearing area
Jjq1 is equal or slightly reduces；Material enters the effect and the first extrusion shearing area jjq1 phase of the second extrusion shearing area jjq2
Seemingly, it is more refined simply by after extrusion shearing.And so on, material is squeezed by third extrusion shearing area jjq3 and the 4th and is cut
After cutting area jjq4, it is processed to satisfactory slurry, after reaching discharge zone, under the effect of gravity, falls and enters discharging spiral
Conveyer is transported to the position of formulation.In order to refine fibrous material gradually, along flow direction of the material in machine barrel, from upstream
To downstream, the axial distance zj of pin and impeller is gradually reduced, i.e. zj1 > zj2 > zj3 > zj4；Pin and impeller it is axial away from
From value range be zj=2~20mm.
Secondary shear pin group and conveyor screw notch form secondary shearing elements, and conveyor screw corresponds to main shear pin group and pair
Setting is jagged at shear pin group position, so that screw rod rotation Shi Buyu pin interferes.Conveyor screw notch is axial wide
Degree qk value range is qk=dx+ (2~5) mm), dx is the nominal diameter of pin.
It is wet by lye or other aqueous solution soakings or boiling in view of pulping material is before entering feed inlet
When thoroughly, into feed inlet under the squeezing action of the first feed auger of feed auger (not shown) and screw rod, in material
Moisture will be extruded, if the liquid in material cannot be smoothly discharged, will affect the effect of extrusion shearing, therefore in machine barrel seat
Feed inlet strainer is equipped with below feed inlet, is respectively arranged below with the first extruding in the first main shearing elements and the second main shearing elements
Area's strainer and the 2nd 2 crush zone strainer, material moisture can be all discharged by these three strainer areas.
Fig. 4 is the A-A sectional view of Fig. 3, it indicates the first main shearing elements pin radially installed schematic diagram.As can be seen that
Pin group is evenly arranged in machine barrel radial section, and the pin in each section is 6~10；Pin is excessive, to flowing in helicla flute
Material formed resistance increase；Pin is very few, and friction is small with the formation of corresponding impeller, it will influences the shearing effect of impeller
Rate.In order to not influence the unlatching of machine barrel lid, the pin arranged on machine barrel lid and machine barrel seat should avoid the company of machine barrel lid and machine barrel seat
Connecting bolt.
Fig. 5 is the B-B sectional view of Fig. 3, indicates the radial cross section of feed inlet.Feed inlet is divided into feed inlet upper section 61
With feed inlet lower section 62, lining tile 63 on feed inlet are provided on the feed inlet upper section inner wall, on the feed inlet lower end inner wall
Lining tile 64 under feed inlet are provided with, there is bias between feed inlet axis and the first feed auger radial section center vertical line
Away from being provided with arc groove in feed inlet machine barrel seat inner wall eccentric side, the cup depth of arc groove gradually reduces, and makes machine barrel content material
Space increases, and the material of entrance is easily accessible in the helicla flute of feed screw, under the effect of machine tube inner wall pressure to increase object
The feed quantity of material.The value range of eccentric distance e is e=(0.2~0.5) D (wherein, D is cylinder bore).
Fig. 6 a is the first blade wheel structure schematic diagram, and Fig. 6 b is the second blade wheel structure schematic diagram；Yc1 is the first impeller groove width,
Yc2 is the second impeller groove width, and impeller groove width yc3 and yc4 will be gradually reduced.
By Fig. 6 a, 6b it is found that lobe numbers can suitably increase when impeller groove width reduces.In impeller radial impeller fluting side
α=20 °~30 ° are had a angle to radial；There is 45 ° of an angle β ≈ in impeller axial direction wheel slot direction and axis.Impeller
It needs using the higher alloy steel making of hardness and strength, the edge of slot is shearing knife edge, and radial angle α is to increase leaf
The length of race, to improve shear efficiency；The direction of radial angle α should be biased to screw rod rotation direction.When the material in screw channel from
When upstream toward downstream flows, the width yc of impeller skewed slot is gradually reduced, i.e. yc1 > yc2 > yc3 > yc4, the value of impeller groove width
Range is yc=5~20mm, under the mating reaction of pin at its upstream, is refined with gradually shearing fibrous material.
7a is the assembling relationship figure of pin pair, and Fig. 7 b is the structural schematic diagram of pin pair.Pin pair is by pin 41 and nut
42 compositions.Pin is manufactured using high-toughness wear-resistant material, and bottom conical section is inserted into machine barrel and acts on the material of flowing,
The outside diameter dx of conical section is the nominal diameter of pin, taper length xc.Conical section diameter above is the cylinder of dx
Machine barrel cover lining watt is partially passed through, threaded portion above is connect with machine barrel lid housing；The quad section of pin the top is used to twist
Dynamic pin, to adjust cantilevered length of the pin in machine barrel.Pin group requires its tapered tip and screw rod when being mounted in machine barrel
Helicla flute distance from bottom is c (c=2~5mm is advisable), the aperture Dc=dx+ (1~2mm) in machine barrel cover lining watt.Pin should be installed
In the radial direction of machine barrel, machine barrel it is axial also must not deflection otherwise can make pin conical section discontinuity；
The parameter of pin are as follows: (D is cylinder bore to dx=(0.085~0.125) D, and dx value is considered as processing materials
Can, pin material and pin processing and installation quality), the taper of insertion machine barrel conical section is 3 °~5 °, taper length xc
=H-c (spiral groove depth that H is normal erect type spin).
Although disclosing the embodiment of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be managed
Solution: do not departing from the present invention and spirit and scope of the appended claims in, various substitutions, changes and modifications be all it is possible,
Therefore, the scope of the present invention is not limited to the embodiment and attached drawing disclosure of that.
Claims (8)
1. a kind of single screw rod fiberizer, including base, machine barrel seat, machine barrel lid, front-end bearing pedestal, rear bearing block, screw rod, shaft coupling,
Retarder, yielding coupling and motor, are fixedly mounted machine barrel seat, front-end bearing pedestal and rear bearing block on base, front-end bearing pedestal with
Rear bearing block passes through fore bearing and rear bearing installation screw rod respectively, and machine barrel seat and machine barrel lid are bolted by machine barrel connection, spiral shell
The front end of bar is connected to retarder by shaft coupling, and retarder is connected to motor by yielding coupling, covers setting in machine barrel
There is feed inlet, be provided with discharge port on machine barrel seat, which is connected to discharging auger conveyor, it is characterised in that: described
Machine barrel lid is connect with the machine barrel seat by open-and-close mechanism opposite opened, and the screw rod is disposed with screw rod front from front to back
Ring, the first feed auger, the second feed auger, third feed auger and conveyor screw, on the conveyor screw from front to back
3~5 impellers are disposed with, is covered in the machine barrel seat and machine barrel and is provided with radial pin at the impeller location
Group, the radial direction pin group protrude into machine barrel seat and machine barrel lid, the conveyor screw and several impellers respectively with radial pin group
Form several extrusion shearing areas.
2. single screw rod fiberizer according to claim 1, it is characterised in that: the radial direction pin group includes main shear pin
Group and secondary shear pin group, the main shear pin group form main shearing elements, the pair shear pin with several impellers respectively
Group and the notch of conveyor screw form secondary shearing elements.
3. single screw rod fiberizer according to claim 1, it is characterised in that: the axial direction of main shear pin group and corresponding impeller
Distance is gradually reduced from front to back.
4. single screw rod fiberizer according to claim 1, it is characterised in that: the conveyor screw corresponds to main shear pin group
And setting is jagged at secondary shear pin group position.
5. single screw rod fiberizer according to claim 2, it is characterised in that: the main shear pin group and secondary shear pin
The distance at end to the conveyor screw slot bottom end of group is 2~5mm, and nominal diameter dx=(0.085~0.125) D, D of pin
For cylinder bore.
6. single screw rod fiberizer according to claim 2, it is characterised in that: the main shear pin group includes several masters
Shear pin, the secondary shear pin group include several secondary shear pins, several main shear pins and secondary shear pin
It is evenly distributed on machine barrel lid and machine barrel seat radial direction.
7. single screw rod fiberizer according to claim 1, it is characterised in that: each impeller on the conveyor screw is along diameter
Several skewed slots are evenly arranged with to direction, skewed slot width gradually reduces from front to back, and impeller radially skewed slot and radial angle are about
It is 20~30 °, impeller axial chute and axis angle are about 45 °.
8. single screw rod fiberizer according to claim 1, it is characterised in that: the feed inlet be divided into feed inlet upper section and into
Material mouth lower section, there are eccentricities between the feed inlet axis and the first feed auger radial section center vertical line, described
Feed inlet machine barrel seat inner wall eccentric side is provided with arc groove, and the cup depth of the arc groove gradually reduces.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810696157.0A CN108867137B (en) | 2018-06-29 | 2018-06-29 | A kind of single screw rod fiberizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810696157.0A CN108867137B (en) | 2018-06-29 | 2018-06-29 | A kind of single screw rod fiberizer |
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| Publication Number | Publication Date |
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| CN108867137A CN108867137A (en) | 2018-11-23 |
| CN108867137B true CN108867137B (en) | 2019-09-17 |
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| CN201810696157.0A Expired - Fee Related CN108867137B (en) | 2018-06-29 | 2018-06-29 | A kind of single screw rod fiberizer |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2144458A (en) * | 1983-06-25 | 1985-03-06 | Berstorff Gmbh Masch Hermann | Apparatus and method for producing wood pulp |
| US4963033A (en) * | 1988-10-19 | 1990-10-16 | Wenger Manufacturing, Inc. | Screw refiner |
| EP0979895A1 (en) * | 1998-08-12 | 2000-02-16 | Instituut Voor Agrotechnologisch Onderzoek (Ato-Dlo) | Method and device for refining fibres |
| CN2601023Y (en) * | 2003-01-29 | 2004-01-28 | 刘振朝 | Straw rolling/grinding machine |
| CN2666978Y (en) * | 2003-12-30 | 2004-12-29 | 天津科技大学 | Homodromy double-screw paper pulp mill |
| CN104846676B (en) * | 2015-05-25 | 2016-08-24 | 南宁糖业股份有限公司 | A kind of method utilizing Eucalyptus sheet to produce bleaching reducing rules |
| CN206870418U (en) * | 2017-03-31 | 2018-01-12 | 北京利晟新能生物科技中心（有限合伙） | Single-screw press master |
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2018
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| CN108867137A (en) | 2018-11-23 |
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Granted publication date: 20190917 Termination date: 20200629 |