CN105749614B - Double dynamical dewatering system and its control method - Google Patents
Double dynamical dewatering system and its control method Download PDFInfo
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- CN105749614B CN105749614B CN201610150852.8A CN201610150852A CN105749614B CN 105749614 B CN105749614 B CN 105749614B CN 201610150852 A CN201610150852 A CN 201610150852A CN 105749614 B CN105749614 B CN 105749614B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 210000000481 breast Anatomy 0.000 claims abstract description 75
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 65
- 230000018044 dehydration Effects 0.000 claims abstract description 44
- 238000001035 drying Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000035515 penetration Effects 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims description 11
- 238000000748 compression moulding Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 238000010009 beating Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 9
- 239000011521 glass Substances 0.000 description 8
- 241000500881 Lepisma Species 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011518 fibre cement Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- -1 papermaking Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007613 slurry method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Solid Materials (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to de-watering of slurries technical fields, more particularly, to a kind of double dynamical dewatering system and its control method.It include: the natural-dehydration area set gradually, the first vacuum dehydration area, cylinder mould couch roll drying zone, the second vacuum dehydration area and base press-forming machine；It further include the rotary roller, the breast roll being arranged on the base press-forming machine of dewatering system least significant end, the water penetration conveyer belt that several transfer rollers in each section are set and are wound around on rotary roller, breast roll and each transfer roller that dewatering system front end is set；Rotary roller and breast roll are drive roll, remaining described transfer roller is driven voller, and the output revolving speed of breast roll end motor is as the input speed for turning round roller end motor.The present invention uses double dynamical conveying, so that conveyer belt is more uniformly stressed, transfer efficiency is greatly improved；The dehydrating effect of conveyer belt is throughout relatively uniform, to ensure that the moisture content of plate obtained everywhere is also closer to, while extending the service life of conveyer belt.
Description
Technical field
The present invention relates to de-watering of slurries technical fields, more particularly, to a kind of double dynamical dewatering system and its control method.
Background technique
It is existing in the production technologies such as construction material, papermaking, chemical industry, usually can the moisture and solute in need by solution
Or the process of slag charge separation.Such as in fiber cement tile, the current industrialization production of plate, de-watering of slurries and blank-making technology use than
More to be generally divided into two major classes: first is that following the example of blank-making technology using copying, another kind of is using slurry flowing process blank-making technology.
There are also a kind of emerging techniques at present --- and collection slurry processes blank-making technology mainly can solve fibre cement waveform
Watt, Slab require the expenditure of energy it is more, need, land occupation biggish plant issue more complex using structure.
But whether copy and follow the example of dewatering system, slurry flowing process dewatering system or collect slurry processes dewatering system, it is in system
Least significant end using single-power convey, conveyer belt generallys use the preferable woollen blanket of water penetration, but leads to woollen blanket since pulling force is excessive
Damage it is serious, in some instances it may even be possible to can make woollen blanket deform or break, this to production when it is totally unfavorable, the service life of woollen blanket probably only has
140 hours.Especially slurry flowing process blank-making technology when the linear velocity of woollen blanket reaches 100 meters per minute, will be often pulled off, sternly
Manufacturing schedule is affected again.
Summary of the invention
The purpose of the present invention is to provide a kind of double dynamical dewatering system and its control methods, to solve to deposit in the prior art
Conveyor belt damage is serious, technical problem that service life is short.
Double dynamical dewatering system provided by the invention, comprising: the natural-dehydration area that sets gradually, the first vacuum dehydration area,
Cylinder mould couch roll drying zone, the second vacuum dehydration area and base press-forming machine；
It further include the rotary roller that the dewatering system front end is set, the base pressure that the dewatering system least significant end is set
Breast roll on molding machine processed is arranged in several transfer rollers in each section and is wound around permeable on rotary roller, breast roll and each transfer roller
Property conveyer belt, the water penetration conveyer belt pass sequentially through the natural-dehydration area, the first vacuum dehydration area, cylinder mould couch roll dehydration
Area, the second vacuum dehydration area and compression moulding drying zone；
The rotary roller and the breast roll are drive roll, respectively by revolution roller end motor and breast roll end motor driven,
The remaining transfer roller is driven voller.
Using double dynamical conveying, so that conveyer belt is more uniformly stressed, transfer efficiency is greatly improved；The dehydration of conveyer belt
Effect is throughout relatively uniform, to ensure that the moisture content of plate obtained everywhere is also closer to, while extending biography
Send the service life of band.
Further, the revolution roller end motor passes sequentially through revolution roller end speed reducer and the first universal drive shaft and revolution
Roller connection, breast roll end motor passes sequentially through breast roll end speed reducer and the second universal drive shaft is connect with breast roll.
Further, at least one sluicing pipe is also set up in the cylinder mould couch roll drying zone, cylinder mould is cleaned；It is pressing
Type drying zone to the conveyer belt return phase setting between natural-dehydration area is made and makes cloth device, and it is described beat near cloth device be arranged to
A few sluicing pipe, cleans the water penetration conveyer belt.
Further, the double dynamical dewatering system further includes arc dewatering box；The arc dewatering box is arranged described
Cloth device is made between natural-dehydration area, vacuum dehydration processing is carried out to the water penetration conveyer belt through over cleaning.
Further, first vacuum dehydration area and the second vacuum dehydration area include at least a vacuum dehydration respectively
Case；The permeable hole of several dense arrangements, and the bottom of the vaccum dewatering box and vacuum is arranged in the surface of the vaccum dewatering box
Pump connection.
So that the operation of water penetration conveyer belt is obstructed since condition of high vacuum degree can generate high suction, reduces making for water penetration conveyer belt
With the service life, therefore multiple vaccum dewatering box are generallyd use, a vacuum pump is shared, to reduce vacuum degree.
Further, the cylinder mould couch roll drying zone mainly includes cylinder mould and couch roll；
The cylinder mould be it is columnar structured, be mounted on main stand by bearing；
The couch roll is mounted on couch roll arm by bearing, and the couch roll arm is mounted on main stand by pin shaft；
The couch roll is tightly attached on the outer wall of cylinder mould, and the water penetration conveyer belt passes through between couch roll and cylinder mould.
Cylinder mould is stainless steel material, is made of backing wire and outer net.Wherein the effect of backing wire is to keep wire side smooth and dispersion volt
The pressure of roller, outer net mainly allow the slurry flowed through to be further dehydrated, are easily formed wet mat.
Cylinder mould couch roll section using the pressure between cylinder mould and water penetration conveyer belt and the extruding between couch roll and cylinder mould come
Realize filtering means dehydration.
Further, the central axis of the couch roll and the central axis of cylinder mould are parallel, and couch roll central axis and cylinder mould central axis
Angle between the plane and horizontal plane at place is -45 °~167.75 °.
The central axis of couch roll and the central axis of cylinder mould are parallel, it is ensured that flatness of the wet mat when leaving cylinder mould and
The consistency of each section attribute.
Further, the arc dewatering box is one, is the tubular construction of section semicircular in shape, and upper surface setting is several
The permeable hole of dense arrangement, and the bottom of the arc dewatering box is controlled to a vacuum pump.
Compared to the vacuum dehydration area combined by multiple vaccum dewatering box, arc dewatering box is only arranged one, vacuum degree
It is higher, for the dehydration of the conveyer belt after cleaning, prepare for next sizing process.
Further, the base press-forming machine further includes forming tube；One in the forming tube and the breast roll
Rotation in situ is kept, another can go up and down and rotate；
When the breast roll can go up and down and rotate, the specific structure of base press-forming machine are as follows: forming tube passes through bearing
It is mounted on host wallboard；Breast roll is mounted on pressure arm by bearing, and there are gaps with molding cartridge module；Pressure arm passes through
It is connect by the way of hinged with host wallboard, one end of pressure arm is provided with air bag, for adjusting breast roll component and forming tube
Gap size between component.The other end on pressure arm far from air bag also sets up oil cylinder；The upper end of oil cylinder and host wallboard
Hingedly, lower end and pressure arm are hinged.Also, breast roll end motor is gone up and down together with breast roll.
The control method of double dynamical dewatering system provided by the invention, using the dewatering system, method particularly includes:
Input speed of the output revolving speed of breast roll end motor as the revolution roller end motor, and breast roll end electricity
Machine output speed feedback to breast roll end motor input terminal, compared with the initial input revolving speed of breast roll end motor
The input speed new as breast roll end motor after processing；The output speed feedback of the revolution roller end motor is returned to described
The input terminal of transfer roller end motor is used as the revolution roller end after handling compared with the initial input revolving speed of the revolution roller end motor
The new input speed of motor rotates synchronously to make the revolution roller end motor that the rotation of breast roll end motor be followed to realize.
The invention has the benefit that
(1) double dynamical conveying is used, so that conveyer belt is more uniformly stressed, transfer efficiency is greatly improved；Conveyer belt
Dehydrating effect is throughout relatively uniform, to ensure that the moisture content of plate obtained everywhere is also closer to, while making to pass
Sending the service life of band (using woollen blanket) can achieve 200 hours or so, can be widely applied to copy follow the example of, slurry flowing process and collection slurry
Method blank-making technology；
(2) under double dynamical transport status, the revolving speed of conveyer belt is significantly improved, thus in the feelings for guaranteeing dehydration quality
Under condition, yield is improved；
(3) consumption energy is small: the method due to using by water penetration conveyer belt and cylinder mould extrusion drainage reduces energy
Consumption；
(4) present invention will scrape water dehydration, vacuum suction dehydration and extrusion dehydration naturally and combine, and dehydrating effect is more preferable.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the main view of dewatering system provided in an embodiment of the present invention；
Fig. 2 is the top view of dewatering system shown in FIG. 1；
Fig. 3 is dewatering system control principle schematic diagram shown in FIG. 1.
Appended drawing reference:
1- rotary roller；2- woollen blanket deflector roll；
3- natural-dehydration area；The first vacuum dehydration of 4- area；
5- arc dewatering box；The first sluicing pipe of 6-；
7- cylinder mould；8- couch roll fixing seat；
9- couch roll；10- couch roll arm；
11- couch roll arm mounting base；The second vacuum dehydration of 12- area；
13- tightening device；14- makes cloth device；
The second sluicing pipe of 15-；16- main stand；
17- base press-forming machine；18- head box；
The first universal drive shaft of 101-；102- turns round roller end speed reducer；
103- turns round roller end motor；The second universal drive shaft of 201-；
202- breast roll end speed reducer；203- breast roll end motor.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below by a specific embodiment in blank-making technology dewatering process and dewatering system carry out it is detailed
Description.
Fig. 1 is the main view of dewatering system provided in an embodiment of the present invention；Fig. 2 is the vertical view of dewatering system shown in FIG. 1
Figure.
The dewatering system include: the natural-dehydration area 3 set gradually, the first vacuum dehydration area 4, cylinder mould couch roll drying zone,
Second vacuum dehydration area 12 and compression moulding drying zone.Wherein, compression moulding drying zone uses base press-forming machine 17.
It further include the water penetration conveyer belt that 12 woollen blanket deflector rolls 2 in each section are set and are wound around on each transfer roller, and
The water penetration conveyer belt passes sequentially through the natural-dehydration area 3, the first vacuum dehydration area 4, cylinder mould couch roll drying zone, second very
Empty drying zone 12 and compression moulding drying zone.
Water penetration conveyer belt uses woollen blanket.
The base press-forming machine 17 specifically includes that forming tube, breast roll, host wallboard, pressure arm and air bag are several big
Part.
Host wallboard is divided into two pieces of left and right, is each attached on bottom surface.It is supported and is connected by distance sink tube between two blocks of host wallboards
It connects, and forming tube bearing block is set on the top of host wallboard, while being mounted to type tube.
Pressure arm is mounted on the position between two blocks of host wallboards on the lower by pressure arm swivel pin in articulated manner.Pressure
The arm of force is formed using pressure arm swivel pin as the lever construction of fulcrum.
On the one arm of pressure arm, breast roll bearing block is installed by backing plate, and breast roll is installed.Breast roll is located at forming tube
Underface or position slightly more partially.
In the end of the arm of pressure arm installation breast roll, air bag is set.The upper end of air bag is connect with pressure arm, and lower end is fixed on
On host wallboard.
In this way, the lifting of breast roll can be realized by the harmomegathus for controlling air bag, to adjust institute between breast roll and forming tube
The pressure value of generation.
In adjustment process, forming tube position is motionless, adjusts briquetting pressure only by adusting the position of breast roll, adjusted
Journey is more convenient simple；The lifting of breast roll is controlled by air bag, reaction speed is fast, briquetting pressure can be made to reach in a very short period of time
To target value.
Oil cylinder can also be set far from one end of air bag in pressure arm.Oil cylinder is generally by the way of being vertically arranged, thereon
End is hinged with host wallboard, and lower end is hinged with pressure arm.
Oil cylinder is used as auxiliary pressurized equipment.The pressure value that general conventional plate compression moulding needs is 25t, only with
Air bag；And the pressure value of 80t or so is needed when low-density and high-strength plate, it needs for air bag and oil cylinder to be used cooperatively at this time,
To improve the pressure value upper limit, reach process requirements.
When breast roll is located at the position of forming tube slightly more partially, the central axis of forming tube and the central axis of breast roll are in level
The spacing between projection on face is generally taken as -20mm~150mm, wherein negative value indicates that the central axis of breast roll is located at forming tube
Between central axis and pressure arm swivel pin, positive value indicates that the central axis of breast roll is located between the central axis and air bag of forming tube.
In order to cooperate harmomegathus and the lifting of breast roll of air bag preferably, need according to the bias between breast roll and forming tube
The further setting of situation progress setting angle.The angle of the line and vertical direction that are set as type tube center and breast roll center is a,
The center line of air bag and the angle of horizontal direction are b, then need a complementary with b.
Under normal conditions, the projection of the central axis of the central axis of the forming tube provided according to front and breast roll in the horizontal plane
Between spacing, setting angle a value range be -1.04 °~7.72 °, wherein negative value indicate breast roll central axis be located at molding
Cylinder central axis and pressure arm swivel pin between, positive value indicate breast roll central axis be located at forming tube central axis and air bag it
Between.
For the co-ordination for guaranteeing oil cylinder and air bag, the position to oil cylinder and air bag is needed to be configured.If the oil cylinder
Central axis between pressure arm swivel pin at a distance from be L0, between the vertical plane where the pressure arm swivel pin and breast roll central axis
Distance be L1, vertical plane where the breast roll central axis between 1706 upper surface central point of air bag at a distance from be L2；Then usually
In the case of, set L0: L1: L2=1:1:1.
Natural-dehydration area 3 includes two natural-dehydration casees being sequentially arranged；Muti-piece glass is arranged in the upper surface of natural-dehydration case
Windshield wiper blade made of glass, cabinet use angle steel material.Glass slicker point row is arranged in parallel, and comes to conveyer belt to inclination.Glass
The front end of glass scraper is sharp, and upper surface is the inclined plane shape after frontal plane under.When installation, the plane of glass slicker upper surface with
Woollen blanket following table face contact.The downward slope at glass slicker upper surface rear portion, can make the lower surface of glass slicker and woollen blanket
Between generate negative pressure, to scrape off the most of moisture of woollen blanket lower surface attachment, natural-dehydration rate generally can achieve 11%~
16%.
Three vaccum dewatering box are respectively set in first vacuum dehydration area 4 and the second vacuum dehydration area 12.Wherein, first is true
Empty drying zone 4 is arranged between natural-dehydration area 3 and cylinder mould couch roll drying zone；Second vacuum dehydration area 12 is arranged in cylinder mould couch roll
On main stand 16 between drying zone and base press-forming machine 17.
Vaccum dewatering box is rectangular cone cylinder structure, array arrangement of gathering on the dewatering plate of top surfaceIt is de-
The bottom in water hole, vaccum dewatering box is connected to vacuum pump.Dewatering hole is evenly arranged, and guarantees the vacuum degree of each position basic one
It causes, advantageously ensures that the surface quality of woollen blanket and each section attribute are identical.
Three vaccum dewatering box in the first vacuum dehydration area 4 and three vaccum dewatering box in the second vacuum dehydration area 12 are respectively
A vacuum pump is shared, to reduce the vacuum degree in each vaccum dewatering box, the high suction for preventing condition of high vacuum degree from generating is to woollen blanket
Operation brings resistance, to ensure that the service life of woollen blanket.
Cylinder mould couch roll drying zone mainly includes cylinder mould 7 and couch roll 9；Cylinder mould 7 be it is columnar structured, by cylinder mould fixing seat and
Bearing is mounted on main stand 16；Couch roll 9 is mounted on couch roll arm 10 by couch roll fixing seat 8 and bearing, the couch roll arm
10 are mounted on main stand 16 by couch roll arm pin shaft.Couch roll 9 is tightly attached on the outer wall of cylinder mould 7, and woollen blanket is from couch roll 9 and net
Pass through between cage 7.
Cylinder mould 7 is stainless steel cylinder mould, is made of backing wire and outer net.Wherein, the effect of backing wire is to keep wire side smooth and disperse
The pressure of couch roll 9, outer net mainly allow the slurry flowed through to be further dehydrated, are easily formed mixed slab, due to cylinder mould 7 and woollen blanket it
Between squeezing action, moisture can be made therefrom to be detached from.
For the consistency for guaranteeing flatness and each section attribute of the wet mat when leaving cylinder mould, the central axis of couch roll 9 with
The central axis of cylinder mould 7 needs to be arranged in parallel, and the plane where 7 central axis of 9 central axis of couch roll and cylinder mould and the folder between horizontal plane
Angle is -45 °~167.75 °.
In the present embodiment, the plane where 7 central axis of 9 central axis of couch roll and cylinder mould and the angle between horizontal plane are selected as
100.78°。
At least one first sluicing pipe 6 is also set up near cylinder mould 7, and cylinder mould 7 is cleaned.9 central axis of couch roll with
When plane where 7 central axis of cylinder mould and the angle between horizontal plane are 100.78 °, the setting of the first sluicing pipe 6 is in the not coat of cylinder mould 7
The circular side of blanket, the angle with horizontal plane are about 45 °, it is ensured that the dregs on cylinder mould 7 clean up.
Cloth device 14 is made in base press-forming machine 17 to the conveyer belt return phase setting between natural-dehydration area, and described
It makes cloth device 14 and second sluicing pipe 15 is nearby set, the dregs on woollen blanket are cleaned.
Tightening device 13 is also set up in conveyer belt return phase, for adjusting the position of some or multiple woollen blanket deflector rolls 2, thus
Adjust the elastic of woollen blanket.
Cloth device 14 is being made to also setting up an arc dewatering box 5 between natural-dehydration area 3: arc dewatering box 5 is in for section
Semicircular tubular construction, upper surface are the dewatering plate that the permeable hole of several dense arrangements is arranged, and the arc dewatering box
Bottom be controlled to a vacuum pump.
The vacuum degree of arc dewatering box 5 is higher than vaccum dewatering box, can be to the woollen blanket by the cleaning of the second sluicing pipe 15
Carry out vacuum dehydration processing.
In the front end in natural-dehydration area 3, rotary roller 1 is set.Wherein, rotary roller 1 and the breast roll of base press-forming machine 17 are
Drive roll, remaining woollen blanket deflector roll 2 and couch roll 9 etc. are driven voller.Revolution roller end motor 103 passes sequentially through revolution roller end and slows down
Machine 102 and the first universal drive shaft 101 are connect with rotary roller 1, breast roll end motor 203 pass sequentially through breast roll end speed reducer 202 and
Second universal drive shaft 201 is connect with breast roll.
Using the form of double drive rolls, the operation of woollen blanket can be made more steady, fluctuated smaller.Rotary roller 1 and breast roll are equal
For rubber roller, the power of operating is provided for woollen blanket by frictional force.
Use the specific steps of the dewatering process of the system are as follows:
Slurry cloth is applied to the upper surface of woollen blanket by head box 18, the concentration of initial slurry is 16%~20%.As biography
It send the woollen blanket of band successively to pass through natural-dehydration area 3 with slurry to carry out scraping water dehydration, carry out first by the first vacuum dehydration area 4
Secondary vacuum suction dehydration carries out first time extrusion dehydration by cylinder mould couch roll drying zone, carries out by the second vacuum dehydration area 12
Second of vacuum suction is dehydrated and carries out final extrusion dehydration molding by compression moulding drying zone, makes finally containing for slurry
Water reaches 24%~28%, reaches making sheet requirement.
To guarantee that the revolving speed of rotary roller and breast roll matches, the revolving speed to rotary roller and breast roll is needed to control.Fig. 3 is
Dewatering system control principle schematic diagram shown in FIG. 1.
The output revolving speed W of breast roll end motor 2031As the input speed of revolution roller end motor 103, and breast roll end motor
Export revolving speed W1The first controller of negative-feedback, the initial input revolving speed W with breast roll end motor 2030By the difference of the first controller
The input speed new as breast roll end motor 203 after processing；Turn round the output revolving speed W of roller end motor 1032Negative-feedback second controls
Device, the initial input revolving speed W with revolution roller end motor 1031As revolution roller end electricity after the processing of the difference of second controller
The new input speed of machine 103, so that it is same to make the revolution roller end motor 103 that the rotation of breast roll end motor 203 be followed to realize
Step rotation, is also able to achieve synchronously control there are external interference, that is, realizes revolution roller end motor 103 and follow breast roll
Hold the output of motor 203.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of double dynamical dewatering system characterized by comprising the natural-dehydration area that sets gradually, the first vacuum dehydration area,
Cylinder mould couch roll drying zone, the second vacuum dehydration area and base press-forming machine；
It further include that the rotary roller that the dewatering system front end is arranged, the base for being arranged in the dewatering system least significant end are pressed into
Breast roll on type machine, the water penetration that several transfer rollers in each section are arranged in and are wound around on rotary roller, breast roll and each transfer roller pass
Band is sent, the water penetration conveyer belt passes sequentially through the natural-dehydration area, the first vacuum dehydration area, cylinder mould couch roll drying zone,
Two vacuum dehydration areas and compression moulding drying zone；
The rotary roller and the breast roll are drive roll, respectively by revolution roller end motor and breast roll end motor driven, remaining
The transfer roller is driven voller；
First vacuum dehydration area and the second vacuum dehydration area include at least a vaccum dewatering box respectively；The vacuum dehydration
The permeable hole of several dense arrangements is arranged in the surface of case, and the bottom of the vaccum dewatering box is controlled to a vacuum pump.
2. double dynamical dewatering system according to claim 1, which is characterized in that the revolution roller end motor passes sequentially through back
Transfer roller end speed reducer and the first universal drive shaft are connect with rotary roller, breast roll end motor pass sequentially through breast roll end speed reducer and
Second universal drive shaft is connect with breast roll.
3. double dynamical dewatering system according to claim 1, which is characterized in that also set up in the cylinder mould couch roll drying zone
At least one sluicing pipe, cleans cylinder mould；In compression moulding drying zone to the conveyer belt return phase between natural-dehydration area
Cloth device is made in setting, and at least one sluicing pipe is arranged in described beat near cloth device, cleans to the water penetration conveyer belt.
4. double dynamical dewatering system according to claim 3, which is characterized in that further include arc dewatering box；
The arc dewatering box setting, between natural-dehydration area, is brought the water penetration transmission through over cleaning into the cloth device of beating
Row vacuum dehydration processing.
5. double dynamical dewatering system according to claim 1, which is characterized in that the cylinder mould couch roll drying zone mainly includes
Cylinder mould and couch roll；
The cylinder mould be it is columnar structured, be mounted on main stand by bearing；
The couch roll is mounted on couch roll arm by bearing, and the couch roll arm is mounted on main stand by pin shaft；
The couch roll is tightly attached on the outer wall of cylinder mould, and the water penetration conveyer belt passes through between couch roll and cylinder mould.
6. double dynamical dewatering system according to claim 5, which is characterized in that in the central axis and cylinder mould of the couch roll
Mandrel is parallel, and the plane where couch roll central axis and cylinder mould central axis and the angle between horizontal plane are -45 °~167.75 °.
7. double dynamical dewatering system according to claim 4, which is characterized in that the arc dewatering box is one, to cut
The tubular construction of face semicircular in shape, upper surface are arranged the permeable hole of several dense arrangements, and the bottom of the arc dewatering box with
Vacuum pump connection.
8. double dynamical dewatering system according to claim 1, which is characterized in that the base press-forming machine further includes into
Type tube；A holding in the forming tube and the breast roll rotates in situ, another can go up and down and rotate；
When the breast roll can go up and down and rotate, breast roll end motor is gone up and down together therewith.
9. a kind of control method of double dynamical dewatering system, which is characterized in that using according to any one of claims 1 to 8 double
Power dewatering system, method particularly includes:
Input speed of the output revolving speed of breast roll end motor as the revolution roller end motor, and breast roll end motor
Speed feedback is exported to the input terminal of breast roll end motor, is handled compared with the initial input revolving speed of breast roll end motor
The input speed new as breast roll end motor afterwards；The output speed feedback of the revolution roller end motor is to the rotary roller
The input terminal for holding motor is used as the revolution roller end motor after handling compared with the initial input revolving speed of the revolution roller end motor
New input speed rotates synchronously to make the revolution roller end motor that the rotation of breast roll end motor be followed to realize.
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