CN108265547A - A kind of automatic pressure-regulating type pressurized screen - Google Patents
A kind of automatic pressure-regulating type pressurized screen Download PDFInfo
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- CN108265547A CN108265547A CN201810175485.6A CN201810175485A CN108265547A CN 108265547 A CN108265547 A CN 108265547A CN 201810175485 A CN201810175485 A CN 201810175485A CN 108265547 A CN108265547 A CN 108265547A
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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
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/023—Stationary screen-drums
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Abstract
The present invention provides a kind of automatic pressure-regulating type pressurized screens, it is main to include storing up sizing device by the screening that cylinder, cover and screen cylinder form, the power drive unit being made of motor and main shaft, vane rotor is main addi-tional crusher device, by lower cover, upper cover plate, sieve rotor, rotor, cylinder barrel, cylinder cap, piston, the automatic pressure regulating device that stopper rod and spring form and the guiding part flow arrangement being made of fairing cap and deflector.Its main feature is that the automatic radiai adjustment of sieve rotor, vortex aided filter and secondary auxiliary pulping.The present invention stores up screening and filtering and the storage of the good slurry of sizing device realization by screening, by power drive unit screening power is provided for pressurized screen, the secondary addi-tional crusher of slurry is realized by addi-tional crusher device, the automatic Regulation of pressurized screen and the assisting sifting that is quickly vortexed are realized by automatic pressure regulating device, the fast guiding of charging and first addi-tional crusher are realized by being oriented to part flow arrangement.
Description
Technical field
The present invention relates to a kind of automatic pressure-regulating type pressurized screen more particularly to a kind of sizing device is stored up by screening realize good slurry
Screening and filtering and storage provide screening power by power drive unit for pressurized screen, and slurry is realized by addi-tional crusher device
Secondary addi-tional crusher, by automatic pressure regulating device realize pressurized screen automatic Regulation and the assisting sifting that is quickly vortexed, by leading
The fast guiding of charging and first addi-tional crusher are realized to part flow arrangement, belong to the technical research field of pressurized screen.
Background technology
Pressurized screen is mainly being rotated through as one of equipment most common in pulp and paper industry by the rotor on rotor
Cheng Zhong generates pressure to the slurry on screen cylinder surface, increases screen cylinder inside and outside differential pressure, and slurry passes through screen cylinder；And rotor is when leaving
The negative pressure of generation will play screen cylinder backwash, so as to ensure that pressurized screen continuously works normally.But due to current pressure riddler
Make the unicity of mode and structure, cause problems with：First, screening efficiency is low, i.e., fixed rotor and screen cylinder spacing make
The pressure for obtaining pressurized screen is definite value, and when initial screening, because slurry is sufficient, pressure is big, slurry normally screens, but as slurry sieves
The reduction of choosing, pressure reduce, and such as fully screening need to increase the working time, so that the screening efficiency of slurry is integrally relatively low；Two
It is good slurry low output, slurry group, long fibrous impurities in screening slurry etc. are more, seriously affect good slurry yield；It is not filled third, screening
Point, in slurry screening process, single passive pressure difference screening the pulp, slurry is made easily to occur in sieve pore, and the residence time is short, and screening is insufficient,
The problem of so as to cause screening efficiency low.
Therefore, screening efficiency for existing pressurized screen generally existing in use is low, good slurry low output and screening are not filled
Grade problem, should be considered from pressurized screen working method and structure, design that screening efficiency is high, good slurry yield is high and
A kind of sufficient apparatus for screening fibrous suspensions of screening.
Invention content
For existing pressurized screen generally existing in use screening efficiency is low, good slurry low output and screening is insufficient etc. asks
Topic, provides a kind of a kind of automatic pressure-regulating type pressurized screen that can effectively solve the above problems.
A kind of automatic pressure-regulating type pressurized screen of the present invention uses following technical scheme：
A kind of automatic pressure-regulating type pressurized screen, the main screening storage sizing device, power drive unit, addi-tional crusher device, automatic of including
Regulator and guiding part flow arrangement, power drive unit are mounted in screening storage sizing device, addi-tional crusher device, automatic Regulation
Device and guiding part flow arrangement are sequentially arranged on power drive unit from down to up；The screening storage sizing device is mainly by cylinder
Body, cover and screen cylinder composition, cylinder lower end outside are equipped with 4 circumferentially uniformly distributed pillars, are welded with screen cylinder on the inside of cylinder, on screen cylinder
Equipped with taper hole, cylinder upper end is equipped with cover by screw, and cover center is equipped with feed slurry inlet；The power drive unit is main
It is made of motor and main shaft, main shaft is mounted on cylinder center bottom, and main shaft lower end is equipped with motor, and motor drives spindle axis counterclockwise rotation
Turn；The addi-tional crusher device is mainly vane rotor, and vane rotor is equipped with 4 circumferentially uniformly distributed blades, vane rotor installation
In main shaft lower end；The automatic pressure regulating device is mainly by lower cover, upper cover plate, sieve rotor, rotor, cylinder barrel, cylinder cap, piston, plug
Bar and spring composition, sieve rotor by sieve turn arc plate and stretch arc plate form, sieve turn arc plate and stretch arc plate quantity be respectively 4 and
It is cross-linked, sieve rotor is mounted between lower cover, upper cover plate, and lower cover, upper cover plate are respectively welded at the upper and lower end of main shaft, rotation
The wing is mounted on sieve and turns on arc plate lateral surface, and sieve turns arc plate middle inside and is welded with cylinder cap, and cylinder barrel is mounted on by bolt on cylinder cap,
Piston and stopper rod are equipped in cylinder barrel, cylinder barrel is externally provided with spring, and stopper rod and spring are separately mounted on sleeve, and sleeve is installed by key
On main shaft；The guiding part flow arrangement is mainly made of fairing cap and deflector, and fairing cap is welded on upper cover plate, fairing cap
It is equipped with deflector.
The cylinder and screen cylinder are respectively columnar structured, and cover is cirque structure；Region is good between cylinder and screen cylinder
Storage area is starched, the cylinder lower end of good slurry storage area is equipped with good slurry and exports；Screen cylinder inner region be slurry zone, the cylinder lower end of slurry zone
It is exported equipped with thick slag；Screen cylinder is equipped with 7 layers of 20 circumferentially uniformly distributed taper hole, and taper hole is taper type structure and small end is close to slurry
Close to good slurry storage area, the outside diameter value of taper hole is 2 times of end diameter value for area, big end；The fixing screws quantity of cover is 8
It is a and circumferential uniformly distributed.
4 circumferentially uniformly distributed straight troughs are respectively equipped on the lower cover and upper cover plate, straight trough is interior equipped with interior buffering ring and outer
Buffering ring, lower cover are equipped with 2 layers of 50 circumferentially uniformly distributed discharge orifice.
It is respectively in the arc plate of 45 degree of radians that the sieve, which turns arc plate and stretches arc plate, and it is recessed equipped with T shapes that sieve turns arc plate both ends
Slot stretches arc plate both ends and is equipped with T shape convex blocks, stretches arc plate using elastomeric material, sieve turns to set respectively in the middle part of arc plate upper and lower end
There is cylinder, bearing is cased on cylinder and in straight trough；It is 1 row that each sieve, which turns arc plate equipped with 6 rotors and 2, each to arrange
Middle adjacent rotor is in tilt upward arrangement clockwise.
The rotor is set as pushing away pulp surface from right to left successively, makes radial facing and midge face, pushes away the cross section of pulp surface in arc-shaped,
Make radial facing cross section it is trapezoidal and bottom boundary values be 1.5 times of upper bottom edge value, make radial facing upper end be equipped with 4 equidistant strips
Circular groove, the cross section in midge face is trapezoidal and upper bottom edge value is bottom boundary values 6 times.
Side is equipped with cushion pad A in the cylinder cap, and side is equipped with cushion pad B in cylinder barrel, and number of springs is for 4 and circumferential equal
Cloth is on the outside of stopper rod.
The fairing cap is conical structure, and the quantity of deflector is for 6 and circumferential uniformly distributed, and deflector is hardened for strip
Structure, deflector both ends are respectively equipped with triangle sawtooth.
The present invention stores up screening and filtering and the storage of the good slurry of sizing device realization by screening, i.e., is stored up in sizing device and sieved by screening
Taper hole on drum filters good slurry and keeps in good slurry by good slurry storage area；Screening is provided by power drive unit for pressurized screen to move
Power；The secondary addi-tional crusher of slurry is realized by addi-tional crusher device, i.e., by the vane rotor in addi-tional crusher device to material
Slurry carries out secondary addi-tional crusher, increases good slurry amount；The automatic Regulation of pressurized screen and quick vortex are realized by automatic pressure regulating device
Assisting sifting turns arc plate by the sieve of automatic pressure regulating device and stretches freely converting for arc plate realization sieve rotor radial size,
So as to fulfill the automatic Regulation of pressurized screen, push away pulp surface by rotor in automatic pressure regulating device, make radial facing and the combination in midge face
Realize the quick vortex assisting sifting of good slurry；The fast guiding of charging and first addi-tional crusher are realized by being oriented to part flow arrangement,
Charging is quickly shunted by the fairing cap and deflector that are oriented in part flow arrangement, prevents slurry from gathering, and pass through and lead
Triangle sawtooth in flowing plate carries out slurry first auxiliary shearing-crushing, increases good slurry amount.
The present invention stores up screening and filtering and the storage of the good slurry of sizing device realization by screening, i.e., is stored up in sizing device and sieved by screening
Taper hole on drum filters good slurry and keeps in good slurry by good slurry storage area, and specially when equipment works, slurry is through sieving on rotor
Rotor pressurization after, will be squeezed into the taper hole on screen cylinder, the good slurry met the requirements enters good between cylinder and screen cylinder through taper hole
It simultaneously keeps in slurry storage area.
Taper hole on screen cylinder is designed as outer small interior big taper type structure by the present invention, and good slurry had both been realized by this design
Screening, and prevent the blocking of slurry, i.e., only enter good slurry storage area less than the slurry of taper hole path, realize the sieve of good slurry
Choosing；And outer small interior big frustum can prevent the good slurry entered in taper hole from gathering blocking in taper hole, eliminate and follow-up good pulp screen is selected
Interference.
The present invention provides screening power by power drive unit for pressurized screen, specially when equipment works, motor band
Dynamic main shaft rotation, main shaft drive sieve to turn indirectly by the lower cover that is welded thereon, upper cover plate and the sleeve that is fixed thereon
Son rotation.
The present invention realizes the secondary addi-tional crusher of slurry by addi-tional crusher device, that is, passes through the leaf in addi-tional crusher device
It takes turns rotor and secondary addi-tional crusher is carried out to slurry, increase good slurry amount, specially when equipment works, the leaf mounted on main shaft lower end
Take turns rotor and secondary addi-tional crusher carried out to the slurry of cylinder bottom end, in slurry slurry group, the impurity such as long fibre crush, increase
Good slurry amount in charging slurry, in addition, vane rotor also prevents slurry from accumulating in cylinder bottom end.
The present invention realizes the automatic Regulation of pressurized screen and the assisting sifting that is quickly vortexed by automatic pressure regulating device, i.e., by certainly
The sieve of dynamic regulator turns arc plate and stretches arc plate to realize freely converting for sieve rotor radial size, so as to fulfill pressurized screen certainly
Dynamic pressure regulation pushes away pulp surface, makes radial facing and the quick vortex of good slurry is realized in the combination in midge face by rotor in automatic pressure regulating device
Assisting sifting；Specially when equipment works, the main shaft of rotation drives lower cover, upper cover plate to rotate together, because of lower cover, upper cover
Plate is equipped with straight trough, and the sieve sieved in rotor turns arc plate and moved under the influence of centrifugal force along straight trough, when the centrifugal force of rotation is more than
During the elastic force of spring, elongation strain is stretched arc plate by stretcher strain by spring, and is sieved and turned arc plate and will be displaced outwardly along straight trough,
The spacing sieved between rotor and screen cylinder reduces, and screening pressure increases；And when rotary speed decline and centrifugal force be less than spring elastic force
When, spring and stretching arc plate restore respectively to original state, and the spacing sieved between rotor and screen cylinder increases, and screening pressure reduces；Cause
This, turns arc plate by this sieve and stretching the radial dimension of of arc plate freely converts, to realize the automatic Regulation of pressurized screen.And this
The quick vortex assisting sifting of invention is the pressure for pushing away pulp surface and being squeezed slurry and increasing slurry of rotor；Making radial facing makes
The slurry flowed through herein can gradually increase and by making the circular groove on radial facing, generate part vortex, the effect being locally vortexed
First, increase slurry in the residence time of taper hole, raising screening efficiency, second is that being vortexed to crush slurry by adjacent multiple parts
Group, long fibre, improve good slurry yield, the effect for also acting as and rinsing taper hole impurity third, part is vortexed；Midge rises on screen cylinder
It is acted on to backwash.
The present invention is respectively equipped with straight trough on lower cover and upper cover plate, and the radial direction for turning arc plate convenient for sieve by this design is moved
It is dynamic；And interior buffering ring and outer buffering ring are equipped in straight trough, play the role of buffering collision.
The present invention is equipped with multiple discharge orifices on lower cover, and the straight trough for preventing slurry from accumulating in lower cover is designed by this
It is interior, it influences sieve and turns moving radially for arc plate.
The present invention turns to be equipped with bearing on the cylinder in the middle part of the upper and lower end of arc plate in sieve, and sieve is turned arc plate by this design
Sliding friction in straight trough becomes rolling friction, reduces frictional resistance.
The adjacent rotor that sieve is turned on arc plate by the present invention is in tilt upward arrangement clockwise, makes sieve rotor by this design
In rotation counterclockwise, tilting upward the rotor of arrangement clockwise will play the role of pushing up to slurry, prevent slurry from sinking
Product.
The present invention turns to be equipped with cylinder barrel, cylinder cap, piston and stopper rod on the inside of arc plate in sieve, turns arc plate diameter to sieve by this design
Play the role of guiding to movement.
The present invention realizes the fast guiding of charging and first addi-tional crusher by being oriented to part flow arrangement, i.e., is shunted by being oriented to
Fairing cap and deflector in device quickly shunt charging, prevent slurry from gathering, and pass through three corner saws on deflector
Tooth carries out slurry first auxiliary shearing-crushing, increases good slurry amount, specially when equipment works, slurry enters through feed slurry inlet
During cylinder, slurry is fallen on fairing cap, conical fairing cap centrifugal force in addition, and slurry is easily made to be detached from fairing cap and enters cylinder
It is interior, and the deflector on fairing cap plays the role of slurry subregion shunting；And the triangle sawtooth on deflector is in slurry
Slurry group, the impurity such as long fibre carry out first shearing-crushing, increase the good slurry amount in slurry, it is total so as to increase the good slurry of screening
Amount.
The beneficial effects of the invention are as follows：Screening and filtering and the storage of the good slurry of sizing device realization are stored up by screening, passes through power
Driving device provides screening power for pressurized screen, the secondary addi-tional crusher of slurry is realized by addi-tional crusher device, by automatic
Regulator realizes the automatic Regulation of pressurized screen and the assisting sifting that is quickly vortexed, and the quick of charging is realized by being oriented to part flow arrangement
Water conservancy diversion and first addi-tional crusher.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the distribution schematic diagram of the deflector of the present invention.
Fig. 3 is the structure diagram of the vane rotor of the present invention.
Fig. 4 is the partial structural diagram of the automatic pressure regulating device of the present invention.
Fig. 5 is that the sieve of the present invention turns the partial structural diagram of arc plate and upper cover plate junction.
Fig. 6 is that the sieve of the present invention turns the partial structural diagram of arc plate and lower cover junction.
Fig. 7 is the distribution schematic diagram of the straight trough of the present invention.
Fig. 8 is the distribution schematic diagram of the discharge orifice of the present invention.
Fig. 9 is the partial structurtes schematic top plan view of the automatic pressure regulating device of the present invention.
Figure 10 is the partial structural diagram at cylinder barrel, cylinder cap, spring and the sleeve connection of the present invention.
Figure 11 is the rotor main view and schematic top plan view of the present invention.
Figure 12 is the distribution schematic diagram of the rotor of the present invention.
Figure 13 is schematic front view when sieve rotor radial of the invention is moved to outermost end.
Figure 14 is the schematic top plan view that rotor is sieved when the sieve rotor radial of the present invention is moved to outermost end.
Figure 15 is the screen cylinder of the present invention and the schematic top plan view of cylinder.
Wherein：1st, pillar, 2, cylinder, 3, the outlet of thick slag, 4, vane rotor, 5, motor, 6, main shaft, 7, lower cover, 8, sieve
Turn arc plate, 9, rotor, 10, good slurry outlet, 11, screw, 12, cover, 13, screen cylinder, 14, upper cover plate, 15, fairing cap, 16, slurry
Import, 17, deflector, 18, triangle sawtooth, 19, discharge orifice, 20, sleeve, 21, spring, 22, interior buffering ring, 23, bearing, 24,
Straight trough, 25, outer buffering ring, 26, cylinder barrel, 27, cylinder cap, 28, piston, 29, stopper rod, 30, key, 31, cushion pad A, 32, bolt, 33,
Cushion pad B, 34, stretch arc plate, 35, circular groove, 36, push away pulp surface, 37, make radial facing, 38, midge face, 39, taper hole.
Specific embodiment
Embodiment：
As shown in Figure 1, a kind of automatic pressure-regulating type pressurized screen of the present invention, it is main include screening storage sizing device, power drive unit,
Addi-tional crusher device, automatic pressure regulating device and guiding part flow arrangement, power drive unit are mounted in screening storage sizing device, auxiliary
Breaker, automatic pressure regulating device and guiding part flow arrangement are sequentially arranged on power drive unit from down to up.
The present invention stores up screening and filtering and the storage of the good slurry of sizing device realization by screening, i.e., is stored up in sizing device and sieved by screening
Taper hole 39 on drum 13 filters good slurry and keeps in good slurry by good slurry storage area；By power drive unit sieve is provided for pressurized screen
Select power；The secondary addi-tional crusher of slurry is realized by addi-tional crusher device, that is, passes through the vane rotor 4 in addi-tional crusher device
Secondary addi-tional crusher is carried out to slurry, increases good slurry amount；The automatic Regulation of pressurized screen and quick is realized by automatic pressure regulating device
Vortex assisting sifting, i.e., arc plate 8 is turned by the sieve of automatic pressure regulating device and stretch arc plate 34 realize sieve rotor radial size from
By converting, so as to fulfill the automatic Regulation of pressurized screen, pushing away pulp surface 36, make 37 and of radial facing by rotor in automatic pressure regulating device 9
The quick vortex assisting sifting of good slurry is realized in the combination in midge face 38；By be oriented to part flow arrangement realize charging fast guiding and
First addi-tional crusher quickly shunts charging by the fairing cap 15 and deflector 17 that are oriented in part flow arrangement, is prevented
Slurry gathers, and passes through the triangle sawtooth 18 on deflector 17 and first auxiliary shearing-crushing is carried out to slurry, increases good slurry amount.
Power drive unit is mainly made of motor 5 and main shaft 6, and main shaft 6 is mounted on 2 center bottom of cylinder, 6 lower end of main shaft
Equipped with motor 5, motor 5 drives main shaft 6 to rotate counterclockwise.
The present invention provides screening power by power drive unit for pressurized screen, specially when equipment works, 5 band of motor
Dynamic main shaft 6 rotates, and main shaft 6 is indirect by the lower cover 7 that is welded thereon, upper cover plate 14 and the sleeve 20 that is fixed thereon
Drive sieve rotor rotation.
With reference to shown in Fig. 2, it is oriented to part flow arrangement and is mainly made of fairing cap 15 and deflector 17, fairing cap 15 is welded on
On cover board 14, fairing cap 15 is equipped with deflector 17.
Fairing cap 15 is conical structure, and the quantity of deflector 17 is for 6 and circumferential uniformly distributed, and deflector 17 is hardened for strip
Structure, 17 both ends of deflector are respectively equipped with triangle sawtooth 18.
The present invention realizes the fast guiding of charging and first addi-tional crusher by being oriented to part flow arrangement, i.e., is shunted by being oriented to
Fairing cap 15 and deflector 17 in device quickly shunt charging, prevent slurry from gathering, and pass through on deflector 17
Triangle sawtooth 18 carries out slurry first auxiliary shearing-crushing, increases good slurry amount, specially when equipment works, slurry is through slurry
When import 16 enters cylinder 2, slurry is fallen on fairing cap 15, and conical fairing cap 15 centrifugal force in addition easily takes off slurry
Enter in cylinder 2 from fairing cap 15, and the deflector 17 on fairing cap 15 plays the role of slurry subregion shunting；And water conservancy diversion
Triangle sawtooth 18 on plate 17 in slurry slurry group, the impurity such as long fibre carry out first shearing-crushing, increase good in slurry
Slurry amount, so as to increase the good slurry total amount of screening.
With reference to shown in Fig. 3, addi-tional crusher device is mainly vane rotor 4, and vane rotor 4 is equipped with 4 circumferentially uniformly distributed leaves
Piece, vane rotor 4 are mounted on 6 lower end of main shaft.
The present invention realizes the secondary addi-tional crusher of slurry by addi-tional crusher device, that is, passes through the leaf in addi-tional crusher device
It takes turns rotor 4 and secondary addi-tional crusher is carried out to slurry, increase good slurry amount, specially when equipment works, mounted on 6 lower end of main shaft
Vane rotor 4 carries out secondary addi-tional crusher to the slurry of 2 bottom end of cylinder, in slurry slurry group, the impurity such as long fibre break
It is broken, increase the good slurry amount in slurry, in addition, vane rotor 4 also prevents slurry from accumulating in 2 bottom end of cylinder.
With reference to shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13 and Figure 14, automatic Regulation dress
It puts mainly by 21 groups of lower cover 7, upper cover plate 14, sieve rotor, rotor 9, cylinder barrel 26, cylinder cap 27, piston 28, stopper rod 29 and spring
Turn arc plate 8 and stretch arc plate 34 to form by sieving into, sieve rotor, it is respectively 4 and staggeredly that sieve, which turns arc plate 8 and stretches 34 quantity of arc plate,
Connection, sieve rotor are mounted between lower cover 7, upper cover plate 14, and lower cover 7, upper cover plate 14 are respectively welded at the upper and lower end of main shaft 6,
Rotor 9 is mounted on sieve and turns on 8 lateral surface of arc plate, and sieve turns 8 middle inside of arc plate and is welded with cylinder cap 27, and cylinder barrel 26 is pacified by bolt 32
On cylinder cap 27, piston 28 and stopper rod 29 are equipped in cylinder barrel 26, cylinder barrel 26 is externally provided with spring 21, and stopper rod 29 and spring 21 are distinguished
On sleeve 20, sleeve 20 is mounted on by key 30 on main shaft 6.
4 circumferentially uniformly distributed straight troughs 24 are respectively equipped on lower cover 7 and upper cover plate 14, interior buffering ring 22 is equipped in straight trough 24
With outer buffering ring 25, lower cover 7 is equipped with 2 layers 50 circumferentially uniformly distributed discharge orifices 19.
It is respectively in the arc plate of 45 degree of radians that sieve, which turns arc plate 8 and stretches arc plate 34, and it is recessed equipped with T shapes that sieve turns 8 both ends of arc plate
Slot stretches 34 both ends of arc plate and is equipped with T shape convex blocks, stretches arc plate 34 using elastomeric material, sieve turns in the middle part of 8 upper and lower end of arc plate
Cylinder is respectively equipped with, bearing 23 is cased on cylinder and in straight trough 24；Each sieve turns arc plate 8 equipped with 6 rotors 9 and 2
A is 1 row, and adjacent rotor 9 is in tilt upward arrangement clockwise in each row.
Rotor 9 is set as pushing away pulp surface 36 from right to left, makes radial facing 37 and midge face 38 successively, pushes away the cross section of pulp surface 36 in circle
Arcuation, make radial facing 37 cross section it is trapezoidal and bottom boundary values be 1.5 times of upper bottom edge value, make radial facing 37 upper end be equipped with 4 etc.
The strip circular groove 35 of spacing, the cross section in midge face 38 is trapezoidal and upper bottom edge value is bottom boundary values 6 times.
Side is equipped with cushion pad A31 in cylinder cap 27, and side is equipped with cushion pad B33 in cylinder barrel 26,21 quantity of spring for 4 and
Circumferentially it is distributed on 29 outside of stopper rod.
The present invention realizes the automatic Regulation of pressurized screen and the assisting sifting that is quickly vortexed by automatic pressure regulating device, i.e., by certainly
The sieve of dynamic regulator turns arc plate 8 and stretches freely converting for 34 realization sieve rotor radial size of arc plate, so as to fulfill pressurized screen
Automatic Regulation, pushing away pulp surface 36, make radial facing 37 and good slurry is realized in the combination in midge face 38 by rotor in automatic pressure regulating device 9
Quick vortex assisting sifting；Specially when equipment works, the main shaft 6 of rotation drives lower cover 7, upper cover plate 14 to revolve together
Turn, because lower cover 7, upper cover plate 14 are equipped with straight trough 24, the sieve sieved in rotor turns arc plate 8 under the influence of centrifugal force along straight trough 24
Mobile, when the centrifugal force of rotation is more than the elastic force of spring 21, elongation strain is stretched arc plate 34 by stretcher strain by spring 21,
And sieve, which will turn arc plate 8, to be displaced outwardly along straight trough 24, and the spacing sieved between rotor and screen cylinder 13 reduces, and screening pressure increases；And work as
When rotary speed declines and centrifugal force is less than the elastic force of spring 21, spring 21 and stretching arc plate 34 restore respectively to original state,
The spacing sieved between rotor and screen cylinder 13 increases, and screening pressure reduces；Therefore, arc plate 8 is turned by this sieve and stretches arc plate 34
It is radial dimension of freely to convert, to realize the automatic Regulation of pressurized screen.And the quick vortex assisting sifting of the present invention is rotor 9
The pressure for pushing away pulp surface 36 and being squeezed slurry and increasing slurry；Making the slurry that radial facing 37 flows through herein can gradually increase
Add, and can generate part by making the circular groove 35 on radial facing 37 and be vortexed, the effect one being locally vortexed is to increase slurry in taper hole 39
Residence time, improve screening efficiency, second is that being vortexed by adjacent multiple parts come broken slurry group, long fibre, improve good slurry
Yield, the effect for also acting as and rinsing 39 impurity of taper hole third, part is vortexed；Midge face 38 on screen cylinder 13 to playing the role of backwash.
The present invention is respectively equipped with straight trough 24 on lower cover 7 and upper cover plate 14, turns arc plate 8 by this design convenient for sieve
It moves radially；And interior buffering ring 22 and outer buffering ring 25 are equipped in straight trough 24, play the role of buffering collision.
The present invention is equipped with multiple discharge orifices 19 on lower cover 7, prevents slurry from accumulating in lower cover 7 by this design
In straight trough 24, influence sieve and turn moving radially for arc plate 8.
The present invention turns to be equipped with bearing 23 on the cylinder in the middle part of the upper and lower end of arc plate 8 in sieve, and sieve is turned arc by this design
Sliding friction of the plate 8 in straight trough 24 becomes rolling friction, reduces frictional resistance.
The adjacent rotor 9 that sieve is turned on arc plate 8 by the present invention is in tilt upward arrangement clockwise, turns sieve by this design
In rotation counterclockwise, tilting upward the rotor 9 of arrangement clockwise will play the role of pushing up son to slurry, prevent slurry
Deposition.
The present invention turns 8 inside of arc plate in sieve and is equipped with cylinder barrel 26, cylinder cap 27, piston 28 and stopper rod 29, passes through this design pair
Sieve turns arc plate 8 and moves radially to play the role of guiding.
With reference to shown in Figure 15, screening storage sizing device is mainly made of cylinder 2, cover 12 and screen cylinder 13,2 lower end outside of cylinder
Equipped with 4 circumferentially uniformly distributed pillars 1,2 inside of cylinder is welded with screen cylinder 13, and screen cylinder 13 is equipped with taper hole 39, and 2 upper end of cylinder passes through
Screw 11 is equipped with cover 12, and 12 center of cover is equipped with feed slurry inlet 16.
Cylinder 2 and screen cylinder 13 are respectively columnar structured, and cover 12 is cirque structure；Region between cylinder 2 and screen cylinder 13
For good slurry storage area, 2 lower end of cylinder of good slurry storage area is equipped with good slurry and exports 10；13 inner region of screen cylinder be slurry zone, slurry zone
2 lower end of cylinder be equipped with thick slag export 3；Screen cylinder 13 is equipped with 7 layers 20 circumferentially uniformly distributed taper holes 39, and taper hole 39 is taper type knot
Close to slurry zone, big end close to good slurry storage area, the outside diameter value of taper hole 39 is 2 times of end diameter value for structure and small end；Cylinder
11 quantity of fixing screws of lid 12 is for 8 and circumferential uniformly distributed.
The present invention stores up screening and filtering and the storage of the good slurry of sizing device realization by screening, i.e., is stored up in sizing device and sieved by screening
Taper hole 39 on drum 13 filters good slurry and keeps in good slurry by good slurry storage area, and specially when equipment works, slurry turns through sieve
After rotor 9 on son pressurizes, the good slurry in the taper hole 39 being squeezed on screen cylinder 13, met the requirements is entered into cylinder 2 through taper hole 39
It good slurry storage area between screen cylinder 13 simultaneously keeps in.
Taper hole 39 on screen cylinder 13 is designed as outer small interior big taper type structure by the present invention, has both been realized by this design
The screening of good slurry, and prevent the blocking of slurry, i.e., only enter good slurry storage area less than the slurry of 39 path of taper hole, realize good slurry
Screening；And outer small interior big frustum can prevent from entering the accumulation blocking in taper hole 39 of the good slurry in taper hole 39, eliminate to follow-up
The interference of good pulp screen choosing.
Claims (7)
1. a kind of automatic pressure-regulating type pressurized screen, it is main include screening storage sizing device, power drive unit, addi-tional crusher device, from
Dynamic regulator and guiding part flow arrangement, power drive unit are mounted in screening storage sizing device, addi-tional crusher device, automatic tune
Pressure device and guiding part flow arrangement are sequentially arranged on power drive unit from down to up；It is characterized in that：The screening storage slurry
Device is mainly made of cylinder, cover and screen cylinder, and cylinder lower end outside is equipped with 4 circumferentially uniformly distributed pillars, is welded on the inside of cylinder
There is screen cylinder, screen cylinder is equipped with taper hole, and cylinder upper end is equipped with cover by screw, and cover center is equipped with feed slurry inlet；It is described dynamic
Force driving device is mainly made of motor and main shaft, and main shaft is mounted on cylinder center bottom, and main shaft lower end is equipped with motor, motor band
Dynamic spindle axis counterclockwise rotation；The addi-tional crusher device is mainly vane rotor, and vane rotor is equipped with 4 circumferentially uniformly distributed leaves
Piece, vane rotor are mounted on main shaft lower end；The automatic pressure regulating device is mainly by lower cover, upper cover plate, sieve rotor, rotor, cylinder
Cylinder, cylinder cap, piston, stopper rod and spring composition, sieve rotor by sieve turn arc plate and stretch arc plate form, sieve turn arc plate and stretch arc plate
Quantity is respectively 4 and is cross-linked, and sieve rotor is mounted between lower cover, upper cover plate, and lower cover, upper cover plate are respectively welded at master
The upper and lower end of axis, rotor are mounted on sieve and turn on arc plate lateral surface, and sieve turns arc plate middle inside and is welded with cylinder cap, and cylinder barrel passes through spiral shell
Bolt is mounted on cylinder cap, and piston and stopper rod are equipped in cylinder barrel, and cylinder barrel is externally provided with spring, and stopper rod and spring are separately mounted to sleeve
On, sleeve is mounted on by key on main shaft；The guiding part flow arrangement is mainly made of fairing cap and deflector, fairing cap welding
On upper cover plate, fairing cap is equipped with deflector.
2. a kind of automatic pressure-regulating type pressurized screen as described in claim 1, it is characterised in that：The cylinder and screen cylinder are respectively to justify
Tubular construction, cover are cirque structure；Region is good slurry storage area between cylinder and screen cylinder, and the cylinder lower end of good slurry storage area is set
There is good slurry outlet；Screen cylinder inner region is slurry zone, and the cylinder lower end of slurry zone is exported equipped with thick slag；Screen cylinder is equipped with 7 layers 20
Circumferentially uniformly distributed taper hole, taper hole is for taper type structure and small end close to slurry zone, big end close to good slurry storage area, the big end of taper hole
Diameter value is 2 times of end diameter value；The fixing screws quantity of cover is for 8 and circumferential uniformly distributed.
3. a kind of automatic pressure-regulating type pressurized screen as described in claim 1, it is characterised in that：Divide on the lower cover and upper cover plate
Not She You 4 circumferentially uniformly distributed straight troughs, interior buffering ring and outer buffering ring are equipped in straight trough, lower cover is equipped with 2 layers of 50 circumferential direction
Uniformly distributed discharge orifice.
4. a kind of automatic pressure-regulating type pressurized screen as described in claim 1, it is characterised in that：The sieve turns arc plate and stretches arc plate
Respectively in the arc plate of 45 degree of radians, sieve turns arc plate both ends equipped with T connected in stars, stretches arc plate both ends and is equipped with T shape convex blocks, stretches
Arc plate uses elastomeric material, and sieve turns to be respectively equipped with cylinder in the middle part of arc plate upper and lower end, bearing is cased on cylinder and mounted on straight
In slot；It is 1 row that each sieve, which turns arc plate to be equipped with 6 rotors and 2, and respectively adjacent rotor is in tilt upward arrangement clockwise in row.
5. a kind of automatic pressure-regulating type pressurized screen as described in claim 1, it is characterised in that：The rotor is set successively from right to left
To push away pulp surface, make radial facing and midge face, push away the cross section of pulp surface in arc-shaped, make radial facing cross section is trapezoidal and bottom boundary values
For 1.5 times of upper bottom edge value, the upper end for making radial facing is equipped with 4 equidistant strip circular grooves, the cross section in midge face it is trapezoidal and on
Base value is 6 times of bottom boundary values.
6. a kind of automatic pressure-regulating type pressurized screen as described in claim 1, it is characterised in that：Side is equipped with buffering in the cylinder cap
A is padded, side is equipped with cushion pad B in cylinder barrel, and number of springs is 4 and is circumferentially distributed on the outside of stopper rod.
7. a kind of automatic pressure-regulating type pressurized screen as described in claim 1, it is characterised in that：The fairing cap is tied for cone
Structure, the quantity of deflector is for 6 and circumferential uniformly distributed, and deflector is strip harden structure, and deflector both ends are respectively equipped with triangle sawtooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175485.6A CN108265547A (en) | 2018-03-02 | 2018-03-02 | A kind of automatic pressure-regulating type pressurized screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175485.6A CN108265547A (en) | 2018-03-02 | 2018-03-02 | A kind of automatic pressure-regulating type pressurized screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108265547A true CN108265547A (en) | 2018-07-10 |
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ID=62774487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810175485.6A Pending CN108265547A (en) | 2018-03-02 | 2018-03-02 | A kind of automatic pressure-regulating type pressurized screen |
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| Country | Link |
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| CN (1) | CN108265547A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109939931A (en) * | 2019-05-01 | 2019-06-28 | 南京林业大学 | A kind of separation grinding device of branch and branches and leaves |
-
2018
- 2018-03-02 CN CN201810175485.6A patent/CN108265547A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109939931A (en) * | 2019-05-01 | 2019-06-28 | 南京林业大学 | A kind of separation grinding device of branch and branches and leaves |
| CN109939931B (en) * | 2019-05-01 | 2023-09-22 | 南京林业大学 | Branch and branch and leaf separation reducing mechanism |
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