CN110004754A - A kind of pulping method of paper for daily use - Google Patents
A kind of pulping method of paper for daily use Download PDFInfo
- Publication number
- CN110004754A CN110004754A CN201910177175.2A CN201910177175A CN110004754A CN 110004754 A CN110004754 A CN 110004754A CN 201910177175 A CN201910177175 A CN 201910177175A CN 110004754 A CN110004754 A CN 110004754A
- Authority
- CN
- China
- Prior art keywords
- pulping
- pulper
- water pump
- white water
- running frequency
- 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.)
- Withdrawn
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The present invention relates to a kind of pulping methods of paper for daily use, including pulping system, the pulping system includes pulper, white water pump, roller conveyor, chain scraper conveyor and pulping discharging pump, and the pulping method is successively the following steps are included: plus water, feeding, mashing, pumping slurry and cleaning；Advantages of the present invention: the running frequency of white water pump and pulper is set by the different workshop sections in pulping, it eliminates existing white water pump and pulping machine equipment runs at high speed the phenomenon that there are waste of energy, production cost is saved, the ton paper power consumption decline 40% of pulping system, the wherein power consumption decline 25% of pulper, the power consumption decline 79% of pulping white water pump.
Description
Technical field
The present invention relates to a kind of pulping methods of paper for daily use.
Background technique
Paper for daily use industry rapid development production capacity steeply rises in recent years, and in December, 2017, paper for daily use yield in China's reached
1295.7 ten thousand tons.Because the steeply rising of production capacity, cost of material are risen sharply, it is abnormal fierce to constitute competition, entire industry into
Enter low margin age, and existing paper for daily use is in pulping technique, pulping system generallys use circulation pulping technique, each pulping
13 to 17 minutes: the You Jiashui period of time, the mashing period, takes out one pulping circulation of slurry period composition, whole process at the feeding period
The problem of middle pulper and pulping white water pump constant speed operate, lead to waste of energy in pulping technique.
Summary of the invention
Present invention purpose to be achieved is just to provide a kind of pulping method of paper for daily use, solves existing pulping technique and leads
The problem of causing waste of energy.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions: a kind of paper for daily use it is broken
Paste-making method, including pulping system, the pulping system include pulper, white water pump, roller conveyor, chain scraper conveyor and pulping
Discharging pump, the pulping method successively the following steps are included:
Step 1: add water: water being added into pulper by white water pump, the running frequency of white water pump is 50~60HZ, and is added
The time of water is 1~2min, and the running frequency of pulper is 15~20HZ；
Step 2: wood pulp feeding: is delivered to by the pulping after step 1 adds water by roller conveyor and chain scraper conveyor
In machine, time of feeding is 1~2min, and the running frequency of white water pump is 50~60HZ, the running frequency of pulper is 35~
40HZ；
Step 3: the wood pulp decomposition after step 2 feeding mashing: is dispersed as by slurry, the operation of white water pump by pulper
Frequency is 5~10HZ, and the running frequency of pulper is 50~55HZ, and the working time of pulper is 7~9min；
Step 4: take out slurry: the slurry after being beaten step 3 by pulping discharging pump is quickly taken away, the operation of white water pump
Frequency is 20~25HZ, and the running frequency of pulper is 20~25HZ, and the working time of pulping discharging pump is 90~120S；
Step 5: cleaning: will be in step 4 treated pulper plus water cleans, the fortune of white water pump by white water pump
Line frequency is 35~40HZ, and the running frequency of pulper is 20~25HZ, and the scavenging period of pulper is 20~40S.
Preferably, the pulping system further includes variable-frequency governor, is mounted on frequency conversion on the pulper and white water pump
Governor.
Preferably, DCS control system is connected on the variable-frequency governor.
In conclusion advantages of the present invention: by adding water, feeding, mashing, taking out the pulping side starched and cleaned in 1. present invention
Method breaks pulp grinder due to adding water conservancy project section white water pump to be power phase as not power phase, therefore water conservancy project section is being added to set white water pump
It is set to high-speed cruising and the operation of broken pulp grinder low speed, it is power phase that pulp grinder breaks in pulping workshop section, and white water pump is not power phase,
Therefore white water pump is arranged to low speed operation, breaks pulp grinder high-speed cruising, Chou Jiang workshop section white water pump and broken pulp grinder are rank of not doing work
Section, therefore white water pump and broken pulp grinder are all provided with and are set to low speed operation, by the different workshop sections in pulping, white water pump and pulping are set
The running frequency of machine, eliminates existing white water pump and pulping machine equipment runs at high speed the phenomenon that there are waste of energy, has saved life
Produce cost, the ton paper power consumption decline 40% of pulping system, the wherein power consumption decline 25% of pulper, under the power consumption of pulping white water pump
Drop 79%, in addition, 22.6 degree of electricity of pulping system electricity consumption unit consumption/ton paper of existing constant speed, and pulping method of the invention is used, it uses
12.5 degree of electricity of electric unit consumption/ton paper；Pulping unit consumption declines 10.1 KWhs/ton of paper, and separate unit yield is by 30,000 tons of calculating, electricity price average 0.6
Member/degree；* 10.1 KWhs/ton * 0.6 yuan /=18.18 ten thousand yuan of the degree in the Spring Festival holidays province electricity charge=30,000 ton；10 months or so it is recoverable investment at
This, in addition, long fibre wood pulp is difficult to size degradation for short fibre, therefore is beating since wood pulp has the fine wood pulp of length and short fine wood pulp
The working time that pulper is arranged in slurry process is 7~9min, makes pulping quality in pulping process, meets production technology；
2. setting is adding between water and mashing, and the white water pump in feeding stage since the feeding stage is the wood pulp feeding stage
Running frequency be 50~60HZ, the running frequency of pulper is 35~40HZ, can ensure that wood pulp can be carried out just in the feeding stage
The decomposition of step improves the efficiency of mashing, improves the quality of slurry, and it is next that wash phase, which is to carry out cleaning process to pulper,
A pulping recycles basis of preparing, and whole broken slurry efficiency is greatly saved；
3. and by the running frequency of broken pulp grinder be arranged respectively to 15~20HZ, 35~40HZ, 50~55HZ, 20~25HZ,
20~25HZ can ensure that brokenly that pulp grinder can smoothly carry out the adjustment of running frequency, reduce brokenly pulp grinder appearance when operating adjusting
The failure problems that rotation speed change is excessive and generates, improve whole service life；
4. variable-frequency governor can carry out speed adjusting to pulper and white water pump respectively, speed transition effect is good, can ensure that
The even running of pulper and white water pump；
5.DCS control system realizes the automatic control of variable-frequency governor, and whole process does not need artificially to adjust fortune
Line frequency can quickly realize that pulping technique different phase changes running frequency automatically, further improve production efficiency.
Specific embodiment
A kind of pulping method of paper for daily use, including pulping system, the pulping system include pulper, white water pump, roller
Road conveyer, chain scraper conveyor and pulping discharging pump, the pulping method successively the following steps are included:
Step 1: add water: water being added into pulper by white water pump, the running frequency of white water pump is 50HZ, and adds water
Time is 2min, and the running frequency of pulper is 15HZ；
Step 2: wood pulp feeding: is delivered to by the pulping after step 1 adds water by roller conveyor and chain scraper conveyor
In machine, the time of feeding is 1min, and the running frequency of white water pump is 50HZ, and the running frequency of pulper is 35HZ；
Step 3: the wood pulp decomposition after step 2 feeding mashing: is dispersed as by slurry, the operation of white water pump by pulper
Frequency is 5HZ, and the running frequency of pulper is 50HZ, and the working time of pulper is 7~9min；
Step 4: take out slurry: the slurry after being beaten step 3 by pulping discharging pump is quickly taken away, the operation of white water pump
Frequency is 25HZ, and the running frequency of pulper is 25HZ, and the working time of pulping discharging pump is 120S；
Step 5: cleaning: will be in step 4 treated pulper plus water cleans, the fortune of white water pump by white water pump
Line frequency is 35HZ, and the running frequency of pulper is 20HZ, and the scavenging period of pulper is 20~40S.
By adding water, feeding, mashing, taking out the pulping method starched and cleaned in the present invention, due to adding water conservancy project section white water pump
For power phase, pulp grinder is broken as not power phase, therefore is adding water conservancy project section that white water pump is arranged to high-speed cruising and broken pulp grinder
Low speed operation, it is power phase that pulp grinder breaks in pulping workshop section, and white water pump is not power phase, therefore white water pump is arranged to low speed fortune
Row, breaks pulp grinder high-speed cruising, and Chou Jiang workshop section white water pump and broken pulp grinder are not power phase, therefore white water pump and broken pulp grinder is equal
It is arranged to low speed operation, the running frequency of white water pump and pulper is set by the different workshop sections in pulping, is eliminated existing white
Water pump and pulping machine equipment run at high speed the phenomenon that there are waste of energy, have saved production cost, the ton paper power consumption of pulping system
Decline 40%, wherein the power consumption decline 25% of pulper, the power consumption decline 79% of pulping white water pump, in addition, existing constant speed is broken
22.6 degree of electricity of slurry system electricity consumption unit consumption/ton paper, and pulping method of the invention is used, 12.5 degree of electricity of electricity consumption unit consumption/ton paper；Pulping
Unit consumption declines 10.1 KWhs/ton of paper, and separate unit yield is by 30,000 tons of calculating, averagely 0.6 yuan/degree of electricity price；The Spring Festival holidays province electricity charge=30,000 ton *
10.1 KWhs/ton * 0.6 yuan /=18.18 ten thousand yuan of degree；10 months or so recoverable costs of investment, in addition, since wood pulp has long fine wood
Slurry and short fine wood pulp, long fibre wood pulp relative to it is short it is fine for be difficult to size degradation, therefore the work of pulper is set in pulping process
Time is 7~9min, makes pulping quality in pulping process, meets production technology.
Since the feeding stage is the wood pulp feeding stage, setting is adding between water and mashing, and the white water pump in feeding stage
Running frequency is 50~60HZ, and the running frequency of pulper is 35~40HZ, can ensure that wood pulp can be carried out tentatively in the feeding stage
Decomposition, improve the efficiency of mashing, improve the quality of slurry, wash phase is to carry out cleaning process to pulper, is next
Pulping recycles basis of preparing, and whole broken slurry efficiency is greatly saved；And the running frequency of broken pulp grinder is arranged respectively to 15
~20HZ, 35~40HZ, 50~55HZ, 20~25HZ, 20~25HZ can ensure that brokenly that pulp grinder can smoothly carry out running frequency
Adjustment, reduce brokenly pulp grinder operate adjust when occur rotation speed change it is excessive and generate failure problems, improve whole make
Use the service life.
The pulping system further includes variable-frequency governor, is mounted on variable-frequency governor on the pulper and white water pump,
Variable-frequency governor can carry out speed adjusting to pulper and white water pump respectively, and speed transition effect is good, can ensure that pulper and white
The even running of water pump；In addition, since pulper is the characteristic that load duty is run and load fluctuation is big, in frequency conversion
It needs to consider to select heavily loaded frequency conversion in type selecting, have torque vector control function, heavy current impact and starting torque are big, adjust to meet
It is fast frequently to wait work condition environments, DCS control system is connected on the variable-frequency governor, DCS control system is the prior art, this hair
It is not described in detail in bright, DCS control system realizes the automatic control of variable-frequency governor, and whole process is not required to very important person
To adjust running frequency, it can quickly realize that pulping technique different phase changes running frequency automatically, further improve production
Efficiency.
In addition to above preferred embodiment, there are other embodiments of the invention, and those skilled in the art can be according to this
Invention makes various changes and modifications, and as long as it does not depart from the spirit of the invention, should belong to appended claims of the present invention and determines
The range of justice.
Claims (3)
1. a kind of pulping method of paper for daily use, including pulping system, the pulping system includes pulper, white water pump, roller-way
Conveyer, chain scraper conveyor and pulping discharging pump, it is characterised in that: the pulping method successively the following steps are included:
Step 1: add water: water being added into pulper by white water pump, the running frequency of white water pump is 50~60HZ, and adds water
Time is 1~2min, and the running frequency of pulper is 15~20HZ；
Step 2: wood pulp: being delivered in the pulper after step 1 adds water by feeding by roller conveyor and chain scraper conveyor,
The time of feeding is 1~2min, and the running frequency of white water pump is 50~60HZ, and the running frequency of pulper is 35~40HZ；
Step 3: the wood pulp decomposition after step 2 feeding mashing: is dispersed as by slurry, the running frequency of white water pump by pulper
For 5~10HZ, the running frequency of pulper is 50~55HZ, and the working time of pulper is 7~9min；
Step 4: take out slurry: the slurry after being beaten step 3 by pulping discharging pump is quickly taken away, the running frequency of white water pump
For 20~25HZ, the running frequency of pulper is 20~25HZ, and the working time of pulping discharging pump is 90~120S；
Step 5: cleaning: will be in step 4 treated pulper plus water cleans, the operation frequency of white water pump by white water pump
Rate is 35~40HZ, and the running frequency of pulper is 20~25HZ, and the scavenging period of pulper is 20~40S.
2. a kind of pulping method of paper for daily use according to claim 1, it is characterised in that: the pulping system further includes becoming
Frequency governor is mounted on variable-frequency governor on the pulper and white water pump.
3. a kind of pulping method of paper for daily use according to claim 2, it is characterised in that: connected on the variable-frequency governor
There is DCS control system.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177175.2A CN110004754A (en) | 2019-03-08 | 2019-03-08 | A kind of pulping method of paper for daily use |
| EP19219113.8A EP3705623A1 (en) | 2019-03-08 | 2019-12-20 | Pulping method for household paper |
| PCT/CN2019/129643 WO2020181885A1 (en) | 2019-03-08 | 2019-12-28 | Pulping method for household paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177175.2A CN110004754A (en) | 2019-03-08 | 2019-03-08 | A kind of pulping method of paper for daily use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110004754A true CN110004754A (en) | 2019-07-12 |
Family
ID=67166678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910177175.2A Withdrawn CN110004754A (en) | 2019-03-08 | 2019-03-08 | A kind of pulping method of paper for daily use |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3705623A1 (en) |
| CN (1) | CN110004754A (en) |
| WO (1) | WO2020181885A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409206A (en) * | 2019-08-01 | 2019-11-05 | 浙江华章科技有限公司 | A kind of automatic control system and its operation method of papermaking pulping section |
| WO2020181885A1 (en) * | 2019-03-08 | 2020-09-17 | 浙江景兴纸业股份有限公司 | Pulping method for household paper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2280116A1 (en) * | 2009-07-29 | 2011-02-02 | BTA International GmbH | Pulper with torque motor |
| CN102154868A (en) * | 2011-01-18 | 2011-08-17 | 维达纸业（江门）有限公司 | Automatic frequency conversion pulping system in household paper manufacturing process |
| CN202055082U (en) * | 2011-01-18 | 2011-11-30 | 维达纸业（江门）有限公司 | Automatic frequency-variable pulp smashing system for manufacturing process of daily use paper |
| CN202786922U (en) * | 2012-09-10 | 2013-03-13 | 浙江仙鹤特种纸有限公司 | Pulper used for papermaking |
| CN208379318U (en) * | 2018-06-01 | 2019-01-15 | 浙江晶鑫特种纸业有限公司 | A kind of paper making pulp concentration automatic regulating system |
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| US5611882A (en) * | 1993-08-11 | 1997-03-18 | Phenix Biocomposites, Inc. | Board stock and method of manufacture from recycled paper |
| US6086716A (en) * | 1998-05-11 | 2000-07-11 | Honeywell-Measurex Corporation | Wet end control for papermaking machine |
| CN100365201C (en) * | 2005-11-18 | 2008-01-30 | 山东轻工业学院 | Enzymatic deinking method for waste newspaper |
| CN105839439B (en) * | 2016-04-08 | 2017-09-05 | 河北永新纸业有限公司 | A kind of rotary drum pulping machine automatic control system |
| CN106223094B (en) * | 2016-07-29 | 2018-04-24 | 云南新平南恩糖纸有限责任公司 | Mixed pulp paper technology |
| CN108221423A (en) * | 2018-01-22 | 2018-06-29 | 北京华浩荣创科技有限公司 | A kind of natural color pulp and its preparation process and application |
| CN208455342U (en) * | 2018-06-25 | 2019-02-01 | 汇胜集团股份有限公司 | Pulping white-water system |
| CN110004754A (en) * | 2019-03-08 | 2019-07-12 | 浙江景兴纸业股份有限公司 | A kind of pulping method of paper for daily use |
-
2019
- 2019-03-08 CN CN201910177175.2A patent/CN110004754A/en not_active Withdrawn
- 2019-12-20 EP EP19219113.8A patent/EP3705623A1/en not_active Withdrawn
- 2019-12-28 WO PCT/CN2019/129643 patent/WO2020181885A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2280116A1 (en) * | 2009-07-29 | 2011-02-02 | BTA International GmbH | Pulper with torque motor |
| CN102154868A (en) * | 2011-01-18 | 2011-08-17 | 维达纸业（江门）有限公司 | Automatic frequency conversion pulping system in household paper manufacturing process |
| CN202055082U (en) * | 2011-01-18 | 2011-11-30 | 维达纸业（江门）有限公司 | Automatic frequency-variable pulp smashing system for manufacturing process of daily use paper |
| CN202786922U (en) * | 2012-09-10 | 2013-03-13 | 浙江仙鹤特种纸有限公司 | Pulper used for papermaking |
| CN208379318U (en) * | 2018-06-01 | 2019-01-15 | 浙江晶鑫特种纸业有限公司 | A kind of paper making pulp concentration automatic regulating system |
Non-Patent Citations (1)
| Title |
|---|
| 李六柏: "高效节能的多速段碎浆技术在生活用纸上的应用", 《中华纸业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181885A1 (en) * | 2019-03-08 | 2020-09-17 | 浙江景兴纸业股份有限公司 | Pulping method for household paper |
| CN110409206A (en) * | 2019-08-01 | 2019-11-05 | 浙江华章科技有限公司 | A kind of automatic control system and its operation method of papermaking pulping section |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020181885A1 (en) | 2020-09-17 |
| EP3705623A1 (en) | 2020-09-09 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190712 |