CN107724155A - Papermaking dry device and control method - Google Patents
Papermaking dry device and control method Download PDFInfo
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- CN107724155A CN107724155A CN201710807858.2A CN201710807858A CN107724155A CN 107724155 A CN107724155 A CN 107724155A CN 201710807858 A CN201710807858 A CN 201710807858A CN 107724155 A CN107724155 A CN 107724155A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000001035 drying Methods 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 22
- 238000005265 energy consumption Methods 0.000 claims abstract description 16
- 238000009833 condensation Methods 0.000 claims abstract description 14
- 230000005494 condensation Effects 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims description 13
- 239000012141 concentrate Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/022—Heating the cylinders
- D21F5/028—Heating the cylinders using steam
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/04—Drying on cylinders on two or more drying cylinders
- D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
- D21F5/044—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using air hoods over the cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/04—Drying on cylinders on two or more drying cylinders
- D21F5/048—Drying on cylinders on two or more drying cylinders in combination with other heating means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/06—Regulating temperature
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/10—Removing condensate from the interior of the cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/16—Drying webs by electrical heating
Landscapes
- Drying Of Solid Materials (AREA)
- Paper (AREA)
Abstract
The present invention provides a kind of papermaking dry device and method, includes the baking roller and deflector roll of interlaced arrangement, dries roller and deflector roll and drives rotation by drive device, it is characterized in that：Packed hollow cavity is set in described baking roller, steam inlet tube connects with drying the hollow cavity of roller；Condensed water comb penetrates steam inlet tube, and the condensation water inlet of condensed water comb is located at close to the position for drying roller hollow cavity bottom.The steam that main steam range comes, which is inputted to high temperature, dries roll segment, and the steam of recovery is pumped into medium temperature by supercharging and dries roll segment；The steam of recovery is pumped into low temperature by supercharging again and dries roll segment；Low temperature dries roll segment and medium temperature is dried roll segment and also connected respectively with main steam range, is connected in low temperature baking roll segment with medium temperature baking roll segment and check valve and adjustable flow valve are provided with the pipeline of main steam range；Adjustable flow valve is connected with control device, and the flow by adjusting adjustable flow valve controls the temperature that low temperature dries roll segment and medium temperature dries roll segment；Papermaking dry energy consumption is reduced by above step.
Description
Technical field
The present invention relates to the drying field in paper-making process, particularly a kind of papermaking dry device and control method.
Background technology
In paper-making process, the drying section of papermaking is used to be dehydrated l Water Paper web, and whole process is needed the dry of l Water Paper web
Spend the mass dryness fraction requirement from 30% ~ 47% lifting to finished paper 96% or so.The problem of existing papermaking dry device is present be energy consumption compared with
Height, the diameter of the baking roller of usual papermaking dry device are heated at 1.2 ~ 1.8 meters using steam, by the energy consumption profit for calculating steam
With efficiency less than 50%, and the energy consumption of whole papermaking dry device is very high.
The B of Chinese patent literature CN 102465469, a kind of gas-fired drying part for paper machine, including Equipment Foundations are described,
Driven roller is provided with Equipment Foundations, the pressure roller that friction width is formed with driven roller is provided with the driven roller of paper feed side, is being driven
Ring steel belt is provided with dynamic roller, driven roller drives ring steel belt cycle rotation, combuster is set below ring steel belt,
Combustion chamber and gas pipeline and air duct UNICOM, are provided with regulation pressure-reducing valve on air duct and gas pipeline.In ring
Shape steel band top is arranged in sequence with hot bellows, and tuyere is provided with hot bellows, and hot bellows are connected with heat exchanger by warm-air pipe,
Heat exchanger changes exchanged heat device and is additionally provided with exhaust gas collecting pipe, the mouth of pipe of exhaust gas collecting pipe is set by pipeline and combustion chamber UNICOM
Put in the both sides of steel band.Energy consumption can significantly be reduced using the structure, but which is there is also larger technical barrier, it is main
It is embodied in：1st, it is larger to the fire-fighting pressure of paper industry using the scheme of burning, easily occur security against fire accident, 2, dry sky
The thermal capacity of gas is relatively low, and the loss that heat is transmitted using dry air is also larger.
Existing baking roller is while being passed through steam and being heated, it is also necessary to discharges condensed water, there is also more skill for this
Art is difficult, and due to drying roller in dynamic state is not stalled, the structure for discharging condensed water is subject to many limitations, side of the prior art
Case is to penetrate condensed water comb from the position in axle center to carry out draining, but in the position of condensation water inlet, therefore, to assure that have enough
The condensed water of depth, if draining is too fast, more waste of steam can be caused, and draining is excessively slow, then is difficult to the temperature that roller is dried in regulation,
And substantial amounts of ponding can also increase the energy consumption dried in roller rotation process.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of papermaking dry device and control method, can reduce drying
The energy consumption of device, speed when increase is dried.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of papermaking dry device, including staggeredly
The baking roller and deflector roll of arrangement, dry roller and deflector roll and rotation is driven by drive device, it is characterized in that：Sealing is provided with described baking roller
Hollow cavity, steam inlet tube with dry roller hollow cavity connect；
Condensed water comb penetrates steam inlet tube, and the condensation water inlet of condensed water comb is located at close to the position for drying roller hollow cavity bottom
Put.
In preferable scheme, scraper plate is provided near condensation water inlet, so that condensed water concentrates on condensation water inlet
Near.
In preferable scheme, scraper plate is additionally provided with, for scraper plate along the axial arranged of roller is dried, scraper plate passes through support and steam inlet tube
It is fixedly connected.
In preferable scheme, described scraper plate overlooks camber, and condensation water inlet is located at the concave side of arc.
In preferable scheme, described deflector roll outer wall is provided with multiple air admission holes, suction tube is provided with deflector roll, suction tube is with bearing
Press aspirator connection.
In preferable scheme, in the heat-insulation layer for being externally provided with insulation of suction tube, the position of close deflector roll inwall in heat-insulation layer
Magnet coil is installed, magnet coil electrically connects with electromagnetic control apparatus.
Embodiment 2：
A kind of control method using above-mentioned papermaking dry device, comprise the following steps：
S1, multiple conveying directions for drying rollers along web are in turn divided into low temperature baking roll segment, medium temperature baking roll segment and high temperature baking roller
Section；
The steam that s2, main steam range come, which is inputted to high temperature, dries roll segment, and the condensed water comb that high temperature dries roll segment is inputted to the first steam
Retracting device；The steam of first vapour-recovery unit recovery is pumped into medium temperature by supercharging and dries roll segment；Medium temperature dries the condensation of roll segment
Water comb is inputted to the second vapour-recovery unit；The steam of second vapour-recovery unit recovery is pumped into low temperature by supercharging and dries roller
Section；
Low temperature dries roll segment and medium temperature is dried roll segment and also connected respectively with main steam range, and dry roll segment in low temperature connects steaming with medium temperature baking roll segment
The pipeline of vapour house steward is provided with check valve and adjustable flow valve；
Adjustable flow valve is connected with control device, and the flow by adjusting adjustable flow valve controls low temperature to dry roll segment and medium temperature baking roller
The temperature of section；
Papermaking dry energy consumption is reduced by above step.
In preferable scheme, in step s1, multiple deflector rolls are correspondingly divided into low-temperature zone, middle-temperature section and high temperature with drying roller
Section, control device control the power output of the electromagnetic control apparatus of the magnet coil electrical connection of each deflector roll, realize low-temperature zone, in
The temperature control of temperature section and high temperature section deflector roll.
In preferable scheme, gas skirt is provided with the top for entirely drying roller, gas skirt is connected with extractor fan；
Described gas skirt dries roll segment to low temperature, medium temperature dries roll segment and high temperature baking roll segment is corresponding is divided into three sections, and every section is provided with independently
Extractor fan.
In preferable scheme, temperature sensor and humidity sensor, temperature sensor are provided with the position of every section of gas skirt
Connect with humidity sensor and control device electricity, control device is electrically connected with each booster pump, adjustable flow valve and electromagnetic control apparatus
Connect；
The each temperature for drying roller of combination regulation of booster pump, adjustable flow valve；Electromagnetic control apparatus adjusts the temperature of each deflector roll.
A kind of papermaking dry device provided by the invention and control method, by being changed to the structure of condensed water comb
Enter, the circulation rate of steam can be accelerated, to improve the surface temperature for drying roller, and condensed water can be discharged with faster speed,
The energy consumption for drying roller rotation is driven to reduce.In preferable scheme, the scraper plate of setting can collect condensed water, further improve condensation
The expulsion efficiency of water, so as to further increase the input pressure of steam, further improve the surface temperature for drying roller.Set
Deflector roll, by using the mode of electromagnetic induction heating, the energy consumption of heating can be greatly reduced.Temperature is set to pass using in gas skirt
The mode of sensor and humidity sensor, the difficulty of control can be reduced, avoid the occurrence of the phenomenon of regulation unstability.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is papermaking dry device partial structurtes sketch of the present invention.
Fig. 2 is the single driving structure schematic diagram for drying roller in the present invention.
Fig. 3 is Fig. 2 A-A cross section structure diagrams.
Fig. 4 is the attachment structure schematic diagram of steam in the present invention.
Fig. 5 is the cross-sectional structure schematic diagram of deflector roll in the present invention.
Fig. 6 is the control flow sketch of the present invention.
In figure：Baking roller 1, high temperature baking roll segment 101, medium temperature baking roll segment 102, low temperature baking roll segment 103, deflector roll 2, heat-insulation layer 201,
Magnet coil 202, suction tube 203, gas skirt 3, dry net 4, guide roller 5, web 6, motor 7, steam inlet tube 8, condensed water
Comb 9, condense water inlet 91, scraper plate 10, support 11, condensed water 12, the first vapour-recovery unit 13, the second vapour-recovery unit
14, the 3rd vapour-recovery unit 15, booster pump 16, main steam range 17, check valve 18, adjustable flow valve 19.
Embodiment
Embodiment 1：
In Fig. 1, a kind of papermaking dry device, include the baking roller 1 and deflector roll 2 of interlaced arrangement, dry roller 1 and deflector roll 2 passes through driving
Device drives rotation, and preferable as in Fig. 2, motor 7 is connected by Hooks coupling universal coupling with drying roller 1, and drives baking roller 1 to revolve
Turn.Packed hollow cavity is set in described baking roller 1, steam inlet tube 8 connects with drying the hollow cavity of roller 1；
Condensed water comb 9 penetrates steam inlet tube 8, and the condensation water inlet 91 of condensed water comb 9 is located at close to baking roller 1 hollow cavity bottom
The position in portion.The steam pressure dried in roller 1 is input to, it is necessary to increase for increase speed, but with steam pressure in baking roller 1
Increase, the emission flow of condensed water are also required to increase, and the larger or more condensed water of waste of steam otherwise can be made to increase drive
The energy consumption of dynamic motor 7.By above-mentioned structure, the pressure of input steam can be increased, while quickly discharge condensed water.
In preferable scheme such as Fig. 2,3, scraper plate 10 is provided near condensation water inlet 91 so that condensed water concentrate on it is cold
Near condensate import 91.Thus structure, the velocity of discharge of condensed water is further improved.
In preferable scheme such as Fig. 2,3, scraper plate 10 is additionally provided with, along the axial arranged of roller 1 is dried, scraper plate 10 passes through scraper plate 10
Support 11 is fixedly connected with steam inlet tube 8.Thus structure, it is ensured that scraper plate 10 has sufficiently reliable support.
In preferable scheme such as Fig. 2,3, described scraper plate 10 overlooks camber, and condensation water inlet 91 is located at the indent of arc
Side.Thus structure, the collection efficiency of condensed water is improved.
In preferable scheme such as Fig. 1, the hollow cavity of sealing also is provided with deflector roll 2, the described outer wall of deflector roll 2 is provided with multiple
Air admission hole, air admission hole run through the outer wall of deflector roll 2, and suction tube 203 is provided with deflector roll 2, and suction tube 203 connects with negative suction system
Logical, described negative suction system is vavuum pump, preferably using water ring pump.Air admission hole is not shown in figure, when web 6 bypasses
During deflector roll 2, web 6 is to be located at the outside of dry net 4, and when around roller 1 is dried, it is positioned at the inner side of dry net 4.When the web of paper
6 when being located at the outside of dry net 4, is easily deformed and fold, so as to influence the quality of finished paper, the air admission hole of setting can lead to
Cross negative pressure to adsorb web 6 on the surface of dry net 4, avoid the deformation of web 6.
In preferable scheme such as Fig. 2, in the heat-insulation layer 201 for being externally provided with insulation of suction tube 203, leaned in heat-insulation layer 201
The position of the nearly inwall of deflector roll 2 is provided with magnet coil 202, and magnet coil 202 electrically connects with electromagnetic control apparatus.Electromagnetic control apparatus
For commercially available product, such as the electromagnetic induction heating controller of Shenzhen Hui Kai scientific ＆ technical corporation.Electromagnetic control apparatus is used to produce height
Frequency electric current, so that magnet coil 202 produces alternating magnetic field, vortex flow is produced on the wall of deflector roll 2 by alternating magnetic field, passes through whirlpool
Electric current produces heat.In this example, the output frequency of electromagnetic control apparatus is 50 ~ 35kHz.Power determines according to the diameter of deflector roll 2.
Deflector roll 2 is driven by drive device to be rotated, and suction tube 203 is extend into deflector roll 2 from the position of axle, and suction tube 203, which is fixed, not to be revolved
Turn, be easily carried heat-insulation layer 201 and magnet coil 202, heat-insulation layer 201 is provided with multiple ventilative holes, in order to pass through suction
The suction of pipe 203 produces negative pressure.Thus structure, the surface of deflector roll 2 can be made full use of to be thermally dried web 6, so as to
Save the volume of equipment.And energy consumption can also be reduced.
In the position of the inwall close to each deflector roll 2, temperature sensor is additionally provided with, to feed back the heating-up temperature of deflector roll 2.Should
Signal is directly fed back to electromagnetic control apparatus by the temperature sensor at place.Electromagnetic control apparatus is electrically connected by bus and control device
Connect, the control device in this example uses PLC.
Using the scheme of electromagnetic induction heating deflector roll 2, the overall quantity for drying roller 1 is advantageously reduced, by measuring and calculating, can be subtracted
Few 30% or so baking roller 1, exemplified by producing 100 grams of paper, and can be by speed from 330 ms/min of liftings to 380 ms/min
Clock, and energy consumption is reduced more than 10%.Because the thermal conversion efficiency of electromagnetic induction heating mode reaches 85%, significantly exceed and steam
50% thermal conversion efficiency of vapour heating.
Embodiment 2：
A kind of control method using above-mentioned papermaking dry device, comprise the following steps：
S1, multiple conveying directions for drying rollers 1 along web 6 are in turn divided into low temperature baking roll segment 103, medium temperature baking roll segment 102 and
High temperature dries roll segment 101；Web 6 is first conveyed to low temperature and dries roll segment 103, and preferable low temperature dries the surface temperature of baking roller 1 of roll segment 103
Spend for 80 ~ 95 DEG C.The surface temperature of baking roller 1 that medium temperature dries roll segment 102 is 95 ~ 105 DEG C, and the surface temperature that high temperature dries roll segment 101 is
105℃~135℃。
In preferable scheme, in step s1, multiple deflector rolls 2 are correspondingly divided into low-temperature zone, middle-temperature section and height with drying roller 1
Temperature section, control device control the power output of the electromagnetic control apparatus of the electrical connection of magnet coil 202 of each deflector roll 2, realized low
The temperature control of temperature section, middle-temperature section and high temperature section deflector roll 2.The surface temperature of each deflector roll 2 and the surface temperature of corresponding baking roller 1
It is identical.
S2, the steam of main steam range 17, which are inputted to high temperature, dries roll segment 101, and the condensed water comb 9 that high temperature dries roll segment 101 is defeated
Enter to the first vapour-recovery unit 13；The steam of first vapour-recovery unit 13 recovery is sent into medium temperature by booster pump 16 and dries roll segment
102；The condensed water comb 9 that medium temperature dries roll segment 102 is inputted to the second vapour-recovery unit 14；Second vapour-recovery unit 14 reclaims
Steam pass through booster pump 16 be sent into low temperature dry roll segment 103；Thus structure, recycling for steam, vapour-recovery unit are realized
13 be the water tank of steam-water separator and insulation.
Low temperature dries roll segment 103 and medium temperature is dried roll segment 102 and also connected respectively with main steam range 17, dries the He of roll segment 103 in low temperature
The pipeline that medium temperature dries the connection main steam range 17 of roll segment 102 is provided with check valve 18 and adjustable flow valve 19；The check valve 18 of setting
Recovered steam can be avoided to recoil, the adjustable flow valve 19 of setting is capable of the input flow rate of remote adjustment steam.
The variable-frequency motor of adjustable flow valve 19 and each booster pump 16 is connected with control device, and the control device in this example is adopted
With PLC, the flow by adjusting adjustable flow valve 19 controls the temperature that low temperature dries roll segment 103 and medium temperature dries roll segment 102；
Papermaking dry energy consumption is reduced by above step.
In preferable scheme, gas skirt 3 is provided with the top for entirely drying roller 1, gas skirt 3 is connected with extractor fan；
Described gas skirt 3 and low temperature dry roll segment 103, medium temperature dries roll segment 102 and high temperature dries that roll segment 101 is corresponding to be divided into three sections, often
Section is provided with independent extractor fan.The gas skirt 3 of setting is discharged again after can the moisture that paper evaporates be uniformly processed, with
Exempt to cause environmental disturbances.
In preferable scheme, temperature sensor and humidity sensor, temperature sensor are provided with the position of every section of gas skirt 3
Connect with humidity sensor and control device electricity, control device is electrically connected with each booster pump, adjustable flow valve and electromagnetic control apparatus
Connect；
The each temperature for drying roller 1 of combination regulation of booster pump, adjustable flow valve；Electromagnetic control apparatus adjusts the temperature of each deflector roll 2
Degree.Although being designed with the sensor for feedback temperature in each baking roller 1 and deflector roll 2, control dries roller 1 and deflector roll to each
2 control difficulty is larger, easily causes control unstability.Influence the stability of equipment operation.In this application, by the control of entirety
Feedback is arranged on the position of gas skirt 3, is entered by the baking roller 1 and deflector roll 2 of the temperature and humidity that is gathered at this to each temperature section
Row control.Specific strategy is the difference according to environment temperature and humidity, and PLC sets different temperature controls to each temperature section
Value, wherein, the deflector roll 2 of each temperature section is preferably set maximum, makes full use of relatively low excellent of induction heating mode energy consumption
Gesture.After the heating-up temperature of each deflector roll 2 is set to the maximum of license, further according to the TEMP of the position of gas skirt 3 setting
Device and humidity sensor adjust the speed of each booster pump 16 and the aperture of adjustable flow valve 19, and each temperature is controlled so as to overall
The temperature of section.Using the control mode, regulation is relatively simple, and fault-tolerant height.Even being capable of automatic compensating section components failure
Situation.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the limitation for the present invention, this hair
Technical characteristic in the technical scheme that bright protection domain should be recorded with claim, including the technical scheme of claim record
Equivalents are protection domain.Equivalent substitution i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of papermaking dry device, include the baking roller of interlaced arrangement（1）And deflector roll（2）, dry roller（1）And deflector roll（2）Pass through drive
Dynamic device driving rotation, it is characterized in that：Described baking roller（1）Inside set Packed hollow cavity, steam inlet tube（8）With drying roller
（1）Hollow cavity connection；
Condensed water comb（9）Penetrate steam inlet tube（8）, condensed water comb（9）Condensation water inlet（91）Positioned at close to baking roller（1）
The position of hollow cavity bottom.
2. a kind of papermaking dry device according to claim 1, it is characterized in that：In condensation water inlet（91）Near be provided with
Scraper plate（10）, so that condensed water concentrates on condensation water inlet（91）Near.
3. a kind of papermaking dry device according to claim 1, it is characterized in that：It is additionally provided with scraper plate（10）, scraper plate（10）Edge
Baking roller（1）Axial arranged, scraper plate（10）Pass through support（11）With steam inlet tube（8）It is fixedly connected.
4. a kind of papermaking dry device according to claim 3, it is characterized in that：Described scraper plate（10）Overlook camber,
Condense water inlet（91）Positioned at the concave side of arc.
5. a kind of papermaking dry device according to claim 1, it is characterized in that：Described deflector roll（2）Outer wall is provided with multiple
Air admission hole, deflector roll（2）It is interior to be provided with suction tube（203）, suction tube（203）Connected with negative suction system.
6. a kind of papermaking dry device according to claim 1, it is characterized in that：In suction tube（203）Be externally provided with insulation
Heat-insulation layer（201）, in heat-insulation layer（201）Interior close deflector roll（2）The position of inwall is provided with magnet coil（202）, magnet coil
（202）Electrically connected with electromagnetic control apparatus.
7. one kind is using the control method of the papermaking dry device described in any one of claim 1 ~ 6, it is characterized in that including following
Step：
S1, by multiple baking rollers（1）Along web（6）Conveying direction be in turn divided into low temperature dry roll segment（103）, medium temperature dry roll segment
（102）And high temperature dries roll segment（101）；
S2, main steam range（17）The steam come, which is inputted to high temperature, dries roll segment（101）, high temperature baking roll segment（101）Condensed water comb
（9）Input to the first vapour-recovery unit（13）；First vapour-recovery unit（13）The steam of recovery passes through booster pump（16）Send
Enter medium temperature and dry roll segment（102）；Medium temperature dries roll segment（102）Condensed water comb（9）Input to the second vapour-recovery unit（14）；The
Two vapour-recovery units（14）The steam of recovery passes through booster pump（16）It is sent into low temperature and dries roll segment（103）；
Low temperature dries roll segment（103）Roll segment is dried with medium temperature（102）Also respectively with main steam range（17）Connection, dry roll segment in low temperature
（103）Roll segment is dried with medium temperature（102）Connect main steam range（17）Pipeline be provided with check valve（18）With adjustable flow valve（19）；
Adjustable flow valve（19）It is connected with control device, by adjusting adjustable flow valve（19）Flow control low temperature dry roll segment
（103）Roll segment is dried with medium temperature（102）Temperature；
Papermaking dry energy consumption is reduced by above step.
8. the control method of papermaking dry device according to claim 7, it is characterized in that：In step s1, led multiple
Roller（2）With drying roller（1）Low-temperature zone, middle-temperature section and high temperature section are correspondingly divided into, control device controls each deflector roll（2）Electromagnetic wire
Circle（202）The power output of the electromagnetic control apparatus of electrical connection, realize low-temperature zone, middle-temperature section and high temperature section deflector roll（2）Temperature
Control.
9. the control method of papermaking dry device according to claim 8, it is characterized in that：Entirely drying roller（1）Top
Provided with gas skirt（3）, gas skirt（3）It is connected with extractor fan；
Described gas skirt（3）Roll segment is dried with low temperature（103）, medium temperature dry roll segment（102）And high temperature dries roll segment（101）Corresponding point
For three sections, every section is provided with independent extractor fan.
10. the control method of papermaking dry device according to claim 9, it is characterized in that：In every section of gas skirt（3）Position
Installed temperature sensor and humidity sensor, temperature sensor and humidity sensor connect with control device electricity, control device with
Each booster pump, adjustable flow valve and electromagnetic control apparatus electrical connection；
The combination of booster pump, adjustable flow valve adjusts each baking roller（1）Temperature；Electromagnetic control apparatus adjusts each deflector roll（2）
Temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807858.2A CN107724155B (en) | 2017-09-08 | 2017-09-08 | The control method of papermaking dry device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807858.2A CN107724155B (en) | 2017-09-08 | 2017-09-08 | The control method of papermaking dry device |
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| Publication Number | Publication Date |
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| CN107724155A true CN107724155A (en) | 2018-02-23 |
| CN107724155B CN107724155B (en) | 2018-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120844404A (en) * | 2025-09-23 | 2025-10-28 | 上海馨星环保科技有限公司 | A continuous drying equipment for producing coated paper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2993282A (en) * | 1957-09-19 | 1961-07-25 | Beloit Iron Works | Dryer drainage control |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120844404A (en) * | 2025-09-23 | 2025-10-28 | 上海馨星环保科技有限公司 | A continuous drying equipment for producing coated paper |
| CN120844404B (en) * | 2025-09-23 | 2025-12-02 | 上海馨星环保科技有限公司 | Continuous drying equipment is used in production of tectorial membrane paper |
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|---|---|
| CN107724155B (en) | 2018-06-19 |
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