CN107724155B - The control method of papermaking dry device - Google Patents
The control method of papermaking dry device Download PDFInfo
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- CN107724155B CN107724155B CN201710807858.2A CN201710807858A CN107724155B CN 107724155 B CN107724155 B CN 107724155B CN 201710807858 A CN201710807858 A CN 201710807858A CN 107724155 B CN107724155 B CN 107724155B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000001035 drying Methods 0.000 claims abstract description 26
- 238000005265 energy consumption Methods 0.000 claims abstract description 16
- 238000009833 condensation Methods 0.000 claims abstract description 13
- 230000005494 condensation Effects 0.000 claims abstract description 13
- 238000004064 recycling Methods 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims description 16
- 239000012141 concentrate Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 230000008569 process 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
- 230000008901 benefit 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
- 238000004321 preservation 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 method of papermaking dry device, and baking roller and deflector roll including interlaced arrangement dry roller and deflector roll and drive rotation by driving device, it is characterized in that：Packed hollow cavity is set in the baking roller, steam inlet tube is connected 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 is input to high temperature and dries roll segment, and the steam of recycling is pumped into medium temperature by supercharging and dries roll segment；The steam of recycling 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, and drying roll segment in low temperature connects on the pipeline of main steam range with medium temperature baking roll segment equipped with check valve and adjustable flow valve；Adjustable flow valve is connect with control device, dries roll segment by the flow control low temperature for adjusting adjustable flow valve and medium temperature dries the temperature of 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 control method of papermaking dry device.
Background technology
In paper-making process, for being dehydrated l Water Paper web, whole process is needed the dry of l Water Paper web the drying section of papermaking
Spend the mass dryness fraction requirement promoted from 30% ~ 47% to finished paper 96% or so.Existing papermaking dry device the problem is that 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 entire papermaking dry device is very high.
102465469 B of Chinese patent literature CN, describe a kind of gas-fired drying part for paper machine, including Equipment Foundations,
Driven roller is provided in Equipment Foundations, the pressure roller that friction width is formed with driven roller is provided in the driven roller of paper feed side, is being driven
Ring steel belt is provided on dynamic roller, driven roller drives ring steel belt cycle rotation, combuster is set below ring steel belt,
Combustion chamber and gas pipeline and air pipeline unicom, are both provided with adjusting pressure reducing valve on air pipeline and gas pipeline.In ring
Shape steel band top is arranged in sequence with hot bellows, and tuyere is provided on hot bellows, and hot bellows are connect with heat exchanger by hot blast pipe,
Heat exchanger changes and heat exchanger is handed over to be additionally provided with exhaust gas collecting pipe, the nozzle of exhaust gas collecting pipe is set by pipeline and combustion chamber unicom
It puts in the both sides of steel band.Energy consumption can significantly be reduced using the structure, but there is also larger technical barriers for which, 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 discharge condensed water, there is also more skills 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, can cause more waste of steam, and draining is excessively slow, then be difficult to adjust the temperature for drying roller,
And a large amount of ponding can also increase the energy consumption dried in roller rotation process.
Invention content
The technical problems to be solved by the invention are to provide a kind of control method of papermaking dry device, can reduce drying
The energy consumption of device, speed when increasing dry.
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 drive rotation by driving device, it is characterized in that：Sealing is equipped in the 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 baking roller hollow cavity bottom
Position.
In preferred scheme, scraper plate is equipped near condensation water inlet, so that condensed water concentrates on condensation water inlet
Near.
In preferred scheme, scraper plate is additionally provided with, for scraper plate along the axial arranged of roller is dried, scraper plate passes through stent and steam inlet tube
It is fixedly connected.
In preferred scheme, the scraper plate overlooks camber, and condensation water inlet is located at the concave side of arc.
Preferably in scheme, the deflector roll outer wall is equipped with multiple air admission holes, suction tube is equipped in deflector roll, suction tube is with bearing
Press suction unit connection.
In preferred scheme, in the insulating layer for being externally provided with insulation of suction tube, the position of close deflector roll inner wall in insulating layer
Electromagnetic coil is installed, electromagnetic coil is electrically connected with electromagnetic control apparatus.
Embodiment 2：
A kind of control method using above-mentioned papermaking dry device includes the following steps：
S1, multiple baking rollers are in turn divided into low temperature baking roll segment, medium temperature baking roll segment and high temperature along the conveying direction of web
Dry roll segment；
The steam that s2, main steam range come is input to high temperature and dries roll segment, and the condensed water comb that high temperature dries roll segment is input to first
Vapour-recovery unit；The steam of first vapour-recovery unit recycling is pumped into medium temperature by supercharging and dries roll segment；Medium temperature dries roll segment
Condensed water comb is input to the second vapour-recovery unit；The steam of second vapour-recovery unit recycling is pumped into low temperature by supercharging
Dry roll segment；
Low temperature dries roll segment and medium temperature is dried roll segment and also connected respectively with main steam range, dries roll segment in low temperature and medium temperature is dried roll segment and connected
The pipeline for connecing main steam range is equipped with check valve and adjustable flow valve；
Adjustable flow valve is connect with control device, dries roll segment and medium temperature by the flow control low temperature for adjusting adjustable flow valve
Dry the temperature of roll segment；
Papermaking dry energy consumption is reduced by above step.
In preferred 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 output power of the electromagnetic control apparatus of the electromagnetic coil electrical connection of each deflector roll, realize low-temperature zone, in
Temperature section and the control of the temperature of high temperature section deflector roll.
In preferred scheme, gas gathering mask is equipped on the top for entirely drying roller, gas gathering mask is connect with extractor fan；
The gas gathering mask and low temperature dry roll segment, medium temperature dries roll segment and high temperature dries that roll segment is corresponding to be divided into three sections, and every section is equipped with
Independent extractor fan.
In preferred scheme, temperature sensor and humidity sensor, temperature sensor are equipped in the position of every section of gas gathering mask
It is connect with humidity sensor and control device electricity, control device is electrically connected with each booster pump, adjustable flow valve and electromagnetic control apparatus
It connects；
The combination of booster pump, adjustable flow valve adjusts each temperature for drying roller；Electromagnetic control apparatus adjusts each deflector roll
Temperature.
A kind of papermaking dry device provided by the invention and control method, are changed by the structure to condensed water comb
Into, the circulation rate of steam can be accelerated, to improve the surface temperature for drying roller, and can condensed water be discharged with faster speed,
The energy consumption for drying roller rotation is driven to reduce.In preferred 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 improves the surface temperature for drying roller.Setting
By using the mode of electromagnetic induction heating, the energy consumption of heating can be greatly reduced in deflector roll.It is passed using in gas gathering mask set temperature
The mode of sensor and humidity sensor can reduce the difficulty of control, avoid the occurrence of the phenomenon that adjusting unstability.
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 schematic diagram of the present invention.
Fig. 2 is the single driving structure schematic diagram for drying roller in the present invention.
Fig. 3 is the A-A schematic cross-sectional views of Fig. 2.
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 schematic diagram 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, insulating layer 201,
Electromagnetic coil 202, suction tube 203, gas gathering mask 3, dry net 4, guide roller 5, web 6, driving motor 7, steam inlet tube 8, condensed water
Comb 9 condenses water inlet 91, scraper plate 10, stent 11, condensed water 12, the first vapour-recovery unit 13, the second vapour-recovery unit
14, third vapour-recovery unit 15, booster pump 16, main steam range 17, check valve 18, adjustable flow valve 19.
Specific embodiment
Embodiment 1：
In Fig. 1, a kind of papermaking dry device, baking roller 1 and deflector roll 2 including interlaced arrangement, dry roller 1 and deflector roll 2 passes through
Driving device driving rotation, preferred as in Fig. 2, driving motor 7 is connect by Hooks coupling universal coupling with drying roller 1, and is driven and dried roller 1
Rotation.Packed hollow cavity is set in the baking roller 1, steam inlet tube 8 is connected 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 1 hollow cavity of roller
The position of body bottom.To increase speed, the steam pressure that increase is needed to be input in baking roller 1, but with vapour pressure in baking roller 1
The increase of power, the emission flow of condensed water are also required to increase, and the condensed water that otherwise waste of steam can be made larger or more can increase
The energy consumption of big driving motor 7.By above-mentioned structure, the pressure of input steam can be increased, while quickly discharge condensed water.
In preferred scheme such as Fig. 2,3, scraper plate 10 is equipped near condensation water inlet 91 so that condensed water concentrate on it is cold
Near condensate import 91.Thus structure further improves the velocity of discharge of condensed water.
In preferred 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
Stent 11 is fixedly connected with steam inlet tube 8.Thus structure, it is ensured that scraper plate 10 has sufficiently reliable support.
In preferred scheme such as Fig. 2,3, the scraper plate 10 overlooks camber, and condensation water inlet 91 is located at the indent of arc
Side.Thus structure improves the collection efficiency of condensed water.
In preferred scheme such as Fig. 1, the hollow cavity of sealing also is provided in deflector roll 2,2 outer wall of deflector roll is equipped with multiple
Air admission hole, air admission hole run through the outer wall of deflector roll 2, suction tube 203 are equipped in deflector roll 2, and suction tube 203 connects with negative suction system
Logical, the negative suction system is vacuum pump, preferably using water ring pump.Air admission hole is being 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 inside 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
It crosses negative pressure to adsorb web 6 on the surface of dry net 4, avoids the deformation of web 6.
In preferred scheme such as Fig. 2, in the insulating layer 201 for being externally provided with insulation of suction tube 203, leaned in insulating layer 201
The position of 2 inner wall of nearly deflector roll is equipped with electromagnetic coil 202, and electromagnetic coil 202 is electrically connected 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 generate height
Frequency electric current so as to which electromagnetic coil 202 be made to generate alternating magnetic field, generates eddy current on the wall of deflector roll 2 by alternating magnetic field, passes through whirlpool
Electric current generates heat.In this example, the output frequency of electromagnetic control apparatus is 50 ~ 35kHz.Power is determined according to the diameter of deflector roll 2.
Deflector roll 2 is driven by driving device to be rotated, and suction tube 203 is extend into from the position of axis in deflector roll 2, and suction tube 203, which is fixed, not to be revolved
Turn, be easily carried insulating layer 201 and electromagnetic coil 202, insulating layer 201 is equipped with multiple ventilative holes, in order to pass through suction
The suction of pipe 203 generates negative pressure.Thus structure can make full use of the surface of deflector roll 2 to be thermally dried web 6, so as to
Save the volume of equipment.And it also is able to reduce energy consumption.
In the position of the inner wall close to each deflector roll 2, temperature sensor is additionally provided with, to feed back the heating temperature of deflector roll 2.It 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
It connects, 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 for producing 100 grams of paper, and can promote speed to 380 ms/min from 330 ms/min
Clock, and energy consumption is reduced more than 10%.This is because the thermal conversion efficiency of electromagnetic induction heating mode reaches 85%, it is more than substantially to steam
50% thermal conversion efficiency of vapour heating.
Embodiment 2：
A kind of control method using above-mentioned papermaking dry device includes the following steps：
S1, multiple baking rollers 1 are in turn divided into low temperature baking roll segment 103, medium temperature baking roll segment along the conveying direction of web 6
102 and high temperature dry roll segment 101；Web 6 is first conveyed to low temperature and dries roll segment 103, and preferred low temperature dries the baking roller 1 of roll segment 103
Surface temperature is 80 ~ 95 DEG C.1 surface temperature of baking roller that medium temperature dries roll segment 102 is 95 ~ 105 DEG C, and high temperature dries the surface of roll segment 101
Temperature is 105 DEG C ~ 135 DEG C.
In preferred 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 output power of electromagnetic control apparatus that the electromagnetic coil 202 of each deflector roll 2 is electrically connected, realize 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 corresponding surface temperature for drying roller 1
It is identical.
S2, main steam range 17 steam be input to high temperature dry roll segment 101, high temperature dry roll segment 101 condensed water comb 9 it is defeated
Enter to the first vapour-recovery unit 13；The steam of first vapour-recovery unit 13 recycling 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 input to the second vapour-recovery unit 14；Second vapour-recovery unit 14 recycles
Steam pass through booster pump 16 be sent into low temperature dry roll segment 103；Thus structure realizes recycling for steam, vapour-recovery unit
13 be steam-water separator and the water tank of heat preservation.
Low temperature dries roll segment 103 and medium temperature is dried roll segment 102 and also connected respectively with main steam range 17, dries 103 He of roll segment in low temperature
Medium temperature dries roll segment 102 and connects the pipeline of main steam range 17 equipped 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 connect with control device, and the control device in this example is adopted
With PLC, roll segment 103 is dried by the flow control low temperature for adjusting adjustable flow valve 19 and medium temperature dries the temperature of roll segment 102；
Papermaking dry energy consumption is reduced by above step.
In preferred scheme, gas gathering mask 3 is equipped on the top for entirely drying roller 1, gas gathering mask 3 is connect with extractor fan；
The gas gathering mask 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
Section, every section is equipped with independent extractor fan.The gas gathering mask 3 of setting is arranged again after can the moisture that paper evaporates be uniformly processed
It puts, in order to avoid cause environmental disturbances.
In preferred scheme, temperature sensor and humidity sensor, temperature sensor are equipped in the position of every section of gas gathering mask 3
It is connect with humidity sensor and control device electricity, control device is electrically connected with each booster pump, adjustable flow valve and electromagnetic control apparatus
It connects；
The combination of booster pump, adjustable flow valve adjusts each temperature for drying roller 1；Electromagnetic control apparatus adjusts each deflector roll 2
Temperature.Although being designed with the sensor for feedback temperature in each baking roller 1 and deflector roll 2, control dries 1 He of roller to each
The control difficulty of deflector roll 2 is larger, be easy to cause control unstability.Influence the stability of equipment operation.In this application, by entirety
Control feedback is arranged on the position of gas gathering mask 3, by the temperature and humidity that is acquired at this to the baking roller 1 and deflector roll of each temperature section
2 are controlled.Specific strategy is the difference according to environment temperature and humidity, and PLC sets different temperature to each temperature section
Controlling value, wherein, the deflector roll 2 of each temperature section is preferably set maximum value, makes full use of induction heating mode energy consumption relatively low
Advantage.After the heating temperature of each deflector roll 2 is set to the maximum value of license, further according to the temperature of 3 position of gas gathering mask setting
Sensor and humidity sensor adjust the speed of each booster pump 16 and the aperture of adjustable flow valve 19, so as to which whole control is each
The temperature of temperature section.Using the control mode, adjusting is relatively simple, and fault-tolerant height.It even being capable of automatic compensating section components
The situation of failure.
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
Bright protection domain should be with the technical solution of claim record, technical characteristic in the technical solution recorded including claim
Equivalents are protection domain.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (9)
1. a kind of control method of papermaking dry device, the baking roller including interlaced arrangement（1）And deflector roll（2）, dry roller（1）And deflector roll
（2）It is driven and rotated by driving device, it is characterized in that：The 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, includes the following steps：
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 is input to high temperature and dries roll segment（101）, high temperature baking roll segment（101）Condensed water comb
（9）It is input to the first vapour-recovery unit（13）；First vapour-recovery unit（13）The steam of recycling passes through booster pump（16）It send
Enter medium temperature and dry roll segment（102）；Medium temperature dries roll segment（102）Condensed water comb（9）It is input to the second vapour-recovery unit（14）；The
Two vapour-recovery units（14）The steam of recycling 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 dries roll segment in low temperature
（103）Roll segment is dried with medium temperature（102）Connect main steam range（17）Pipeline be equipped with check valve（18）With adjustable flow valve（19）；
Adjustable flow valve（19）It is connect 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.
2. a kind of control method of papermaking dry device according to claim 1, it is characterized in that：In condensation water inlet（91）
Near be equipped with scraper plate（10）, so that condensed water concentrates on condensation water inlet（91）Near.
3. a kind of control method of papermaking dry device according to claim 1, it is characterized in that：It is additionally provided with scraper plate（10）,
Scraper plate（10）Along baking roller（1）Axial arranged, scraper plate（10）Pass through stent（11）With steam inlet tube（8）It is fixedly connected.
4. a kind of control method of papermaking dry device according to claim 3, it is characterized in that：The scraper plate（10）It bows
Depending on camber, water inlet is condensed（91）Positioned at the concave side of arc.
5. a kind of control method of papermaking dry device according to claim 1, it is characterized in that：The deflector roll（2）Outside
Wall is equipped with multiple air admission holes, deflector roll（2）It is interior to be equipped with suction tube（203）, suction tube（203）It is connected with negative suction system.
6. a kind of control method of papermaking dry device according to claim 1, it is characterized in that：In suction tube（203）It
It is externally provided with the insulating layer of insulation（201）, in insulating layer（201）Interior close deflector roll（2）The position of inner wall is equipped with electromagnetic coil
（202）, electromagnetic coil（202）It is electrically connected with electromagnetic control apparatus.
7. the control method of papermaking dry device according to claim 1, 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 output power of the electromagnetic control apparatus of electrical connection realizes low-temperature zone, middle-temperature section and high temperature section deflector roll（2）Temperature
Control.
8. the control method of papermaking dry device according to claim 7, it is characterized in that：Entirely drying roller（1）Top
Equipped with gas gathering mask（3）, gas gathering mask（3）It is connect with extractor fan；
The gas gathering mask（3）Roll segment is dried with low temperature（103）, medium temperature dry roll segment（102）And high temperature dries roll segment（101）Corresponding point
It it is three sections, every section is equipped with independent extractor fan.
9. the control method of papermaking dry device according to claim 8, it is characterized in that：In every section of gas gathering mask（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.
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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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| 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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| CN107724155A CN107724155A (en) | 2018-02-23 |
| CN107724155B true CN107724155B (en) | 2018-06-19 |
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| 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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| US2993282A (en) * | 1957-09-19 | 1961-07-25 | Beloit Iron Works | Dryer drainage control |
| US4792164A (en) * | 1986-02-21 | 1988-12-20 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary joint for stationary siphon |
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| CN201751457U (en) * | 2010-06-22 | 2011-02-23 | 张希华 | Dryer used for paper finishing |
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| CN104913624A (en) * | 2015-06-11 | 2015-09-16 | 陕西科技大学 | Control method and system for wet method leather manufacturing |
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