CN106320054A - Low energy consumption coated white board papermaking process - Google Patents
Low energy consumption coated white board papermaking process Download PDFInfo
- Publication number
- CN106320054A CN106320054A CN201510381105.0A CN201510381105A CN106320054A CN 106320054 A CN106320054 A CN 106320054A CN 201510381105 A CN201510381105 A CN 201510381105A CN 106320054 A CN106320054 A CN 106320054A
- Authority
- CN
- China
- Prior art keywords
- coated white
- layer
- water
- copy paper
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005265 energy consumption Methods 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000010410 layer Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- 239000000123 paper Substances 0.000 claims description 22
- 239000011087 paperboard Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004537 pulping Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 5
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 241000233866 Fungi Species 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000012792 core layer Substances 0.000 abstract 2
- 210000000038 chest Anatomy 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241000196171 Hydrodictyon reticulatum Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
The invention belongs to the technical field of papermaking technology for coated white boards. A coated white board papermaking process comprises surface layer, lining layer, core layer and bottom layer pulp storage lines and a papermaking production line, wherein the pulp storage lines comprise machine chests, the papermaking production system comprises a mesh part, a drying part and a spraying part, and the water temperature is systematically increased by 4-15 DEG C. The technology is optimized, and the temperature of the pulp of the surface layer, the lining layer, the core layer and the bottom layer of the coated white board coating layer and the water temperature of a paper machine spraying system are uniformly improved, the paper pulp dewatering effect is obviously enhanced, and finally the total energy required by paper pulp dewatering is greatly reduced, and at the same time, the paper pulp fungi and the white water system fungi are inactivated at the temperature of 50 DEG C.
Description
Technical field
The invention belongs to machine hand's technology field of coated white paperboard.
Background technology
It is known that in pulp technology for making paper, the consumption for water, electricity is huge, and country improves constantly environmental protection and energy consumption in recent years
Standard, under the overall background that the whole world is biological, some place domestic even limits the electricity consumption of each enterprise and water total amount is right to reduce
The consumption of water power, in this case, updates existing technological level, reduces energy consumption and is particularly important.On the one hand it is actual
Produce and reduce cost, on the other hand also alleviate owing to limit consumes the order restriction to enterprise's production capacity.
Summary of the invention
The purpose of the present invention solves the problems referred to above exactly, according to based on the paper machine system that existing coated white paperboard is commonly used, carries
For the copy paper technique of a kind of optimization, change existing paper machine blood circulation water temperature, reduce whole copy paper production line water power energy consumption.
For reaching above-mentioned purpose, the technical scheme that the present invention takes is as follows:
A kind of coated white paperboard copy paper technique, includes surface layer, lining, sandwich layer and bottom pulping and copy paper production line, pulping respectively
Line includes that machine chest, copy paper system include wet end, drying section and spray system, all water temperature system intensifications 4-15 DEG C.
Further, above-mentioned coated white paperboard copy paper technique arranges the heat-exchange device of air/water at drying section, be applied to plain boiled water and
Shower water heats.The primary steam mode of heating simplified can also be taked to promote plain boiled water temperature.
Further, above-mentioned coated white paperboard copy paper technique arranges wet end plain boiled water temperature and is 50-54 DEG C, spray portion water temperature 35-54 DEG C.
Further, above-mentioned coated white paperboard copy paper technique improved shower water temperature before plain boiled water heats up for a long time.
Beneficial effects of the present invention:
Through technical optimization, slurry temperature and the paper machine spray system water temperature to coated white paperboard surface layer, lining, sandwich layer and bottom
Finding after unified raising, dewatering of pulp effect is remarkably reinforced, and needed for ultimately resulting in dewatering of pulp, gross energy is greatly decreased.
1,20 DEG C time start to improve water temperature, reduce the surface tension of water and viscosity increase by 4% drying pressure；
2, start to increase water temperature drying cylinder steam consumption when 20 DEG C and cut down 16%；
3, paper pulp and white-water system fungus inactivate when 50 DEG C.
Detailed description of the invention
With at Zhejiang white board production line to manufacture 350g/m2Illustrate as a example by coating ash end white board:
Starting to increase the temperature of every layer of slurry line when 20 DEG C, accurately measure, primary data record is as follows:
For early stage convenient test, utilize, by tele-control system, the method that primary steam heats.High-pressure spraying coolant-temperature gage is made to adjust
To 36+2 DEG C, flow velocity is more than 3000 liters/min, and each layer slurry plain boiled water temperature finally brings up to 52 DEG C.Primary steam will not be with
Optimal mode heats plain boiled water, but the paper machine carrying out experimental test does not has the heat-exchange device of air/water, and in cover, aerofluxus can not be applied
Add at water and hanker.Water heating system needs the design of further energy loop optimization, and follow-up investigation finds, increases air/water heat exchange
Device and operation plain boiled water circulate and by the spray-pipe system of heat exchanger, can carry the heat of 5MW to process water.
When water temperature rises to 51.7 DEG C, can serve saving by band for the steam adding hot water, this saving is higher by sandwich layer water
The dehydration of temperature obtains, and another key issue in system design is PID control, after obtaining target setting, controls system
Blanket insurance stays valve 30% to open, and causes and does not obtain more effective income, and best control room should Close All.
Final multipoint data compares discovery, HP shower and most of layer and is being heated to 52 DEG C of dehydrating effects clearly, reaches
To peak value.The slurry temperature of balanced growth 6 DEG C, drying pressure increases by 1.2%, and steam consumption reduces 5%.Shower water temperature exists
Under same standard, also can maintain slurry high temperature without primary steam.
Every layer of temperature all can increase 4-15 DEG C, but the restriction of actual production line machine cannot be allowed to more economical efficiently: on machine some
Spray equipment is provided with suction box, is estimated to exceed the current direction plain boiled water net hole of 50%.In base line measurement system, total slurry flow is
17.237 liters/min, it is used for cooling down plain boiled water more than the HP shower of 10% total flow.
Can promote what dehydration determined that by increasing water temperature.Theory analysis, under high temperature, the viscosity of water reduces, thus reduces
The energy of flow losses, also can reduce surface tension, it is simple to water removes from fibrous layer simultaneously.Temperature at press section rises
Cause fiber softening, the most at low pressures conpressed fibers layer.Accompanying drawing 1 is that temperature is on fiber surface tension force and the impact of viscosity
Test data.Applicant studies discovery, and water temperature can improve about 20 DEG C, from 30 DEG C of the most universal increase water temperatures to 50 DEG C
Will reduce the viscosity of 25-30%, after pressurization, drying effect has the raising of about 4%.This is also to improve water temperature to be beneficial to dewatering of pulp
Carry out overall reduction steam consumption the biggest factor.
Conceptual data shows, improves 4-8 times with steam heating plain boiled water than service efficiency in drying device.Meanwhile, dehydration is improved
Efficiency is also beneficial to improve the speed of service that paper machine is whole.
Claims (5)
1. a coated white paperboard copy paper technique, includes surface layer, lining, sandwich layer and bottom pulping and copy paper production line, pulping respectively
Line includes that machine chest, copy paper system include wet end, drying section and spray system, all water temperature system intensifications 4-15 DEG C.
2. coated white paperboard copy paper technique as claimed in claim 1, it is characterised in that: wet end plain boiled water temperature is set and is 50-54 DEG C,
Spray portion water temperature 35-54 DEG C.
3. coated white paperboard copy paper technique as claimed in claim 1, it is characterised in that: the heat exchange of air/water is set at drying section
Device, is applied to plain boiled water and shower water heating.
4. coated white paperboard copy paper technique as claimed in claim 1, it is characterised in that: take primary steam mode of heating to promote white
Coolant-temperature gage.
5. coated white paperboard copy paper technique as claimed in claim 1, it is characterised in that: before plain boiled water heats up for a long time, improve spray
Coolant-temperature gage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381105.0A CN106320054A (en) | 2015-06-29 | 2015-06-29 | Low energy consumption coated white board papermaking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381105.0A CN106320054A (en) | 2015-06-29 | 2015-06-29 | Low energy consumption coated white board papermaking process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106320054A true CN106320054A (en) | 2017-01-11 |
Family
ID=57726926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510381105.0A Pending CN106320054A (en) | 2015-06-29 | 2015-06-29 | Low energy consumption coated white board papermaking process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106320054A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919759A (en) * | 1987-01-23 | 1990-04-24 | Valmet Paper Machinery Inc. | Control of detachment of a paper web from a roll using heat |
| CN103437232A (en) * | 2013-07-01 | 2013-12-11 | 浙江永泰纸业集团股份有限公司 | High-grade coating white paper board production process |
-
2015
- 2015-06-29 CN CN201510381105.0A patent/CN106320054A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919759A (en) * | 1987-01-23 | 1990-04-24 | Valmet Paper Machinery Inc. | Control of detachment of a paper web from a roll using heat |
| CN103437232A (en) * | 2013-07-01 | 2013-12-11 | 浙江永泰纸业集团股份有限公司 | High-grade coating white paper board production process |
Non-Patent Citations (5)
| Title |
|---|
| 何先立: ""宏文造纸厂造纸车间设计中的主要设备选择"", 《上海造纸》 * |
| 史长伟: ""浆温对抄纸工艺的影响"", 《黑龙江造纸》 * |
| 孙来鸿等: ""喷淋装置在纸机上的应用与用水节水措施"", 《中国造纸》 * |
| 宋才根: ""热水喷淋在抄浆机压榨部的应用"", 《纸和造纸》 * |
| 苏雄波等: ""现代纸机干燥部新型节能干燥技术"", 《黑龙江造纸》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ghosh | Fundamentals of paper drying–theory and application from industrial perspective | |
| CN204385215U (en) | A kind of leather vacuum drying installation | |
| CN111241717A (en) | Method for optimizing operation parameters of drying part of toilet paper machine based on mechanism model | |
| CN106320054A (en) | Low energy consumption coated white board papermaking process | |
| CN203499741U (en) | Backpressure steam extraction small steam turbine thermal system coaxially arranged with primary reheating main steam turbine set | |
| CN102226319B (en) | Batch cooking cold blow device and cold blow method | |
| Ghodbanan et al. | Optimization for energy consumption in drying section of fluting paper machine | |
| Janošovský et al. | Cost‐Saving Opportunities in the Energy Management of Papermaking Processes | |
| CN204059092U (en) | A kind of Secondary Control steam chest | |
| CN205871334U (en) | Corrugated paper board production line | |
| CN108252150B (en) | Energy-saving and consumption-reducing system of papermaking drying cylinder | |
| CN211668235U (en) | Steam reutilization energy-saving device of drying and shaping process | |
| CN203653988U (en) | Energy-saving and water-saving ageing system | |
| US3988200A (en) | System for heat-exchange of heat transfer liquid with steam in papermaking installations | |
| CN210069822U (en) | High-pressure high-temperature condensed water flash evaporation recovery system | |
| CN207509402U (en) | A kind of man-made board hot-pressing machine tail carbonated drink retracting device | |
| CN106245409A (en) | A kind of method for manufacturing of environmental protection kraft liner cardboard paper | |
| CN203440705U (en) | Novel steam supply and drainage system of drying cylinder | |
| CN216361498U (en) | Direct-fired energy-saving high-quantitative paperboard drying line | |
| Jankes et al. | Waste heat potentials in the drying section of the paper machine in UMKA cardboard mill | |
| CN205077316U (en) | Oxygen -eliminating device and water tank steam recycling system that condenses | |
| CN203848542U (en) | Energy-saving circulating system utilizing waste steam waste heat and condensate recycling | |
| CN205593031U (en) | Energy -saving heat supply network circulating water system | |
| CN105603798A (en) | Novel drying cylinder steam supply and water discharge system | |
| CN211848620U (en) | Paperboard drying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170503 Address after: 311421, No. 3, Xinjian village, Fuyang District, Zhejiang, Hangzhou Applicant after: Zhejiang Heritage Industry Co., Ltd. Address before: 311421, Zhejiang City, Hangzhou province Fuyang city street street paper function area Applicant before: Yongtai Paper Business Group Co., Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |