CN107366172A - A kind of method that slurrying even steam spraying pot tail vapour recycles - Google Patents
A kind of method that slurrying even steam spraying pot tail vapour recycles Download PDFInfo
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- CN107366172A CN107366172A CN201710560933.XA CN201710560933A CN107366172A CN 107366172 A CN107366172 A CN 107366172A CN 201710560933 A CN201710560933 A CN 201710560933A CN 107366172 A CN107366172 A CN 107366172A
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- China
- Prior art keywords
- spraying pot
- tail vapour
- slurrying
- delivered
- bagasse
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- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- 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
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Abstract
The present invention relates to the field that a kind of slurrying industry even steam spraying pot tail vapour recycles, disclose a kind of method that slurrying even steam spraying pot tail vapour recycles, the slurry in the conveying worm in inclined helix dehydrator, preheating screw conveyer, cooking liquor bucket and bleaching vacuum pulp washing machine is preheated using the tail vapour of spraying pot, improves the temperature of bagasse.The present invention can be made full use of the tail vapour of spraying pot, reduce energy loss, production cost be reduced, the features such as environmental protection.
Description
Technical field
The present invention relates to a kind of field of even steam spraying pot tail vapour recovery, specially a kind of slurrying even steam spraying pot tail vapour returns
Receive the method utilized.
Background technology
Sugarcane is one of primary raw material of sugaring, and bagasse is byproduct of the sugarcane after sugar refinery processes extraction of the juice.China's sugarcane
The large-scale industrial production of slag papermaking is started from 2006, and obtained with Bagassepulping papermaking and improving for alkali recovery technology
Develop rapidly, be one kind with fastest developing speed in non-wood fibrous raw material in recent years.The fiber content of bagasse is close with timber, fiber
Length is about 0.65~2.17mm, 0.021~0.028mm of width.Sugarcane fiber both ends are in tip-shape, and intertexture power is preferable.Especially
It is that can in high volume be supplied after squeezing sugar, there is the characteristics of amount is big, collection neutralization is easier to collect, so being a kind of good paper making raw material.
Bagasse bleach chemical pulp is mixed with certain long fibre, and can manufacture paper with pulp the good high protein germplasm of various habit degree and life
With paper, such as copy paper, offset printing paper, sanitary tissue, napkin paper, true qualities bagasse pulp still produces corrugated paper and various paper
The good raw material of plate.
Boiling is that plant fiber material is dissociated into a kind of method of paper pulp by chemical reagent.Cooking liquor heating directly makes
Supply to come with power houses one takes out, two steam pumpings（Technological requirement cooking liquor enter steam pipe before temperature to reach 85 degree with
On）；There is no any the pre-heat treatment directly to deliver into steam pipe through material-feeding shaft into the bagasse before steam pipe, and spurted after boiling
The low-pressure steam that process is brought out directly is put to idle discharge, causes waste heat to waste；Bleachery 1#Dense pump standpipe in bleaching machine
Interior slurry directly using power houses for come one take out, two steam pumpings heat；The usage amount of live steam amount is caused to increase,
The loss of the burning energy is also implied that, exhaust emissions caused by burning, aggravates the burden of environment.
In summary, it is significant to research and develop a kind of spraying pot tail vapour recycling.
The content of the invention
The purpose of the present invention is the defects of overcoming prior art, and provides a kind of slurrying even steam spraying pot tail vapour and recycle
Method；This method can fully be reused the tail vapour in spraying pot, using the tail vapour waste heat of this part to inclined screw
Alkalization slurry in cooking liquor and vacuum pulp washing machine in the bagasse of conveyer and preheating screw conveyer, cooking liquor bucket carries out advance
Heating so that the raw material of this part is when entering subsequent processing with certain temperature；This can greatly reduce spraying pot by tail
Vapour discharges the amount of air, environmental protection, the larger raising production efficiency of and can, has preferable economic benefit and social benefit.
In order to realize the invention described above purpose, the technical scheme used for：
A kind of method that slurrying even steam spraying pot tail vapour recycles, the described method comprises the following steps：
（1）The jet chimney of connection discharge tail vapour at the top of spraying pot；
（2）Branch pipe is separated on jet chimney and connects inclined helix dehydrator, preheating screw conveyer, cooking liquor bucket and vacuum respectively
Conveying worm in wash engine；
（3）Bagasse liquid is delivered to inclined helix dehydrator, it is heated in inclined helix dehydrator, then it is delivered to preheating screw conveying
Machine, steam branch pipe is connected with the preheating screw conveyer, the bagasse in preheating screw conveyer is heated, will be added
Bagasse after heat is delivered to continuously cooking system and carries out boiling；
（4）Cooking liquor in cooking liquor bucket is heated, then is delivered in continuously cooking system and carries out boiling；Pulping and digesting liquid
The temperature of bucket bucket inner cooking liquid is about 55 DEG C, and the temperature is unfavorable for boiling to poor to the penetration of alkali in bagasse digestion process
Slurry uniformity；Cooking liquor bucket is heated using spraying pot tail vapour so that the cooking liquor temperature in it is improved to 85 DEG C；From
And the larger penetration improved to alkali, obtain good effect；
（5）Alkalization slurry in vacuum pulp washing machine is preheated by the tail vapour connected on conveying worm, then passes through vacuum
Wash engine carries out pulp washing, then slurries are delivered into alkalization tower；And existing alkalization heating is that dense pump standpipe is implemented in, in not meeting
Dense pump operation requirement, there is also heating to spend the problem of poor, influences product quality and production consumes.In addition, the dense pump standpipe by
Limitation, the quantity of steam deficiency that winter adds.
Jet chimney material described above is any in stainless steel, steel alloy or carbon steel.
Implementation above methods described, required equipment include spraying pot and jet chimney；Connection steam at the top of the spraying pot
Pipeline, the jet chimney connect conveying worm, inclined helix dehydrator, preheating screw conveyer in vacuum pulp washing machine respectively
With cooking liquor bucket.
Conveying worm described above is positioned at below the helical member in vacuum pulp washing machine.
It is of the invention to be relative to substantive distinguishing features and marked improvement prominent possessed by prior art：
1st, the present invention solves the problems, such as that spraying pot tail vapour directly discharges air, overcomes traditional solution directly or indirectly to be exchanged heat with water
The problems such as causing a large amount of dirty thermal water utilizations endless.Tail vapour in spraying pot is used for inclined screw conveyer and preheating screw conveyer
Bagasse, the alkalization slurry in cooking liquor and vacuum pulp washing machine in cooking liquor bucket heated in advance；So that bagasse is heated in advance,
There is pre- steamed journey to bagasse, while reduce the steam consumption in steam pipe；Also so that cooking liquor temperature improve, it is dissatisfied certainly cooking liquor with
The big problem of the temperature difference in steam pipe, accelerate digestion time, improve the uniformity of slurry；Meanwhile vacuum pulp washing machine is also caused to alkalize
Slurry hot spot is moved on at newly-increased conveying worm, makes full use of spraying pot tail vapour waste heat；The larger saving energy loss of energy, is reduced
Environmental pollution, increase economic efficiency.
2nd, in the present invention below vacuum pulp washing machine inside spin, conveying worm is installed, will using spraying pot waste heat from tail gas
Alkalization slurry hot spot is moved on at newly-increased conveying worm, more abundant to alkalization slurry preheating, improves the temperature of alkalization slurry in advance,
The usage amount of the live steam in washing process can be reduced, therefore can indirectly reduce the quantity combusted of burning boiler, reduce boiler combustion
The discharge capacity of tail gas is burnt, realizes the protection to environment, while also reach and make full use of waste heat effect.
3rd, the present invention replace it is traditional to inclined helix dehydrator, preheating conveyer and vacuum pulp washing machine be heated to be take out, two
Steam pumping, the larger usage amount for reducing live steam of energy, so as to reduce the energy loss of burning boiler, also reduces burning boiler
Exhaust emissions, realize the effects of energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is the structural representation for inventing a kind of method that slurrying even steam spraying pot tail vapour recycles；
Component names and serial number in figure：Spraying pot 1, vacuum pulp washing machine 2, helical member 3, conveying worm 4, jet chimney 5, steam
Boil liquid bucket 6, continuously cooking system 7, preheating screw conveyer 8, inclined helix dehydrator 9, steam branch pipe 10, alkalize tower 11.
Embodiment
It is that the present invention is described in more detail with reference to embodiments of the invention below.
Referring to a kind of method that shown in Fig. 1, slurrying even steam spraying pot tail vapour recycles, methods described includes following step
Suddenly：
（1）The jet chimney 5 of the top of spraying pot 1 connection discharge tail vapour；Spraying pot 1 is to receive bagasse obtained by after continuously cooking
Slurry, when these slurries are spurted to spraying pot 1, with substantial amounts of steam, this some vapor is stored in spraying pot 1, such as
This some vapor is directly discharged air by fruit, has both caused the waste of the energy, causes the pollution of environment again；
（2）Branch pipe is separated on jet chimney 5 and connects inclined helix dehydrator 9, preheating screw conveyer 8, the and of cooking liquor bucket 6 respectively
Conveying worm 4 in vacuum pulp washing machine 2；Bagasse need to be through water washing before this this, and the temperature of bagasse reduces after washing, is unfavorable for
Follow-up boiling；
（3）Bagasse liquid is delivered to inclined helix dehydrator 9, it is heated in inclined helix dehydrator 9, then to be delivered to preheating screw defeated
Machine 8 is sent, the steam branch pipe 10 of tail vapour is connected with the preheating screw conveyer 8, by the bagasse in preheating screw conveyer 8
Heated, the bagasse after heating is delivered into continuously cooking system 7 carries out boiling；
（4）Cooking liquor in cooking liquor bucket 6 is heated, the temperature of the inner cooking liquid of cooking liquor bucket 6 is about 55 DEG C or so, the temperature
Degree is unfavorable for boiling slurry uniformity to poor to the penetration of alkali in bagasse digestion process, need to be with being steam heated to 85 DEG C of effects
Fruit is better, then is delivered in continuously cooking system 7 and carries out boiling；
（5）Alkalization slurry in vacuum pulp washing machine 2 is preheated by the tail vapour connected on conveying worm 4, then by true
Empty wash engine 2 carries out pulp washing, then slurries are delivered into alkalization tower 11；And traditional alkalization heating is that dense pump standpipe is implemented in,
Dense pump operation requirement in not meeting, there is also heating to spend the problem of poor, influences product quality and production consumes.In addition, by
Dense pump standpipe limitation, the quantity of steam deficiency that winter adds；The slurry on conveying worm is carried out by steam branch pipe 10 direct
Heating so that slurry is heated evenly, and larger raising slurrying quality, greatly reduces production loss.
Jet chimney material described above is any in stainless steel, steel alloy or carbon steel.
Implementation above methods described, required equipment include spraying pot 1 and jet chimney 5；Connection is steamed at the top of the spraying pot
Steam pipe road 5, liberated vapours branch pipe 10 connects conveying worm 4, the oblique spiral shell in vacuum pulp washing machine 2 respectively on the jet chimney 5
Revolve dewaterer 9, preheating screw conveyer 8 and cooking liquor bucket 6.
Case study on implementation 1：
The present invention is applied particularly in production practices by Hengxian County's paper company, by the present invention, can save 9104 every year
Ton mark coal, equivalent to 13406 tons of raw coal is saved, based on 640 yuan/ton of raw coal purchasing price in 2014, can save 8,580,000 yuan.Implement
Energy-saving effect acquired by the present invention is apparent.Both the energy has been saved, energy consumption has been reduced, has saved energy cost again, be
The said firm creates economic benefit, improves the market competitive power of the said firm.
Claims (4)
1. a kind of method that slurrying even steam spraying pot tail vapour recycles, it is characterised in that the described method comprises the following steps：
（1）The jet chimney of connection discharge tail vapour at the top of spraying pot；
（2）Branch pipe is separated on jet chimney and connects inclined helix dehydrator, preheating screw conveyer, cooking liquor bucket and vacuum respectively
Conveying worm in wash engine；
（3）Bagasse liquid is delivered to inclined helix dehydrator, it is heated in inclined helix dehydrator, then it is delivered to preheating screw conveying
Machine, steam branch pipe is connected with the preheating screw conveyer, the bagasse in preheating screw conveyer is heated, will be added
Bagasse after heat is delivered to continuously cooking system and carries out boiling；
（4）Cooking liquor in cooking liquor bucket is heated, then is delivered in continuously cooking system and carries out boiling；
（5）Alkalization slurry in vacuum pulp washing machine is preheated by the tail vapour connected on conveying worm, then passes through vacuum
Wash engine carries out pulp washing, then slurries are delivered into alkalization tower.
2. the method that slurrying even steam spraying pot tail vapour according to claim 1 recycles, it is characterised in that：The steam
Pipe material is any in stainless steel, steel alloy or carbon steel.
3. the method that slurrying even steam spraying pot tail vapour according to claim 1 recycles, it is characterised in that：Described in realization
Method, required equipment include spraying pot and jet chimney；Connection jet chimney at the top of the spraying pot, the jet chimney difference
Connect conveying worm, inclined helix dehydrator, preheating screw conveyer and the cooking liquor bucket in vacuum pulp washing machine.
4. the method recycled according to the slurrying even steam spraying pot tail vapour described in claim 3, it is characterised in that：The spiral transferring
Send the helical member lower section that machine is positioned in vacuum pulp washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710560933.XA CN107366172A (en) | 2017-07-11 | 2017-07-11 | A kind of method that slurrying even steam spraying pot tail vapour recycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710560933.XA CN107366172A (en) | 2017-07-11 | 2017-07-11 | A kind of method that slurrying even steam spraying pot tail vapour recycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366172A true CN107366172A (en) | 2017-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710560933.XA Pending CN107366172A (en) | 2017-07-11 | 2017-07-11 | A kind of method that slurrying even steam spraying pot tail vapour recycles |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842493A (en) * | 2018-05-31 | 2018-11-20 | 张玉莲 | A kind of pulp manufacture equipment |
| CN109487610A (en) * | 2018-12-26 | 2019-03-19 | 广西粤桂广业控股股份有限公司 | A kind of method of the direct pulping by cooking of fresh bagasse |
| CN112342814A (en) * | 2020-11-19 | 2021-02-09 | 横县东糖糖业有限公司纸业分公司 | Method for producing high-strength natural-color paper pulp by taking eucalyptus bark as raw material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120097A (en) * | 1994-10-01 | 1996-04-10 | 陈祖绵 | Double spherical cooking digester black liquor extracted from sphere |
| CN1844563A (en) * | 2006-05-22 | 2006-10-11 | 李国林 | Paper pulp manufacturing process and equipment |
| CN103215834A (en) * | 2013-04-17 | 2013-07-24 | 岳阳林纸股份有限公司 | Energy-saving environment-friendly continuous cooking process |
| CN203336807U (en) * | 2013-05-15 | 2013-12-11 | 中冶纸业银河有限公司 | Device for heating pulp washing spray water |
-
2017
- 2017-07-11 CN CN201710560933.XA patent/CN107366172A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120097A (en) * | 1994-10-01 | 1996-04-10 | 陈祖绵 | Double spherical cooking digester black liquor extracted from sphere |
| CN1844563A (en) * | 2006-05-22 | 2006-10-11 | 李国林 | Paper pulp manufacturing process and equipment |
| CN103215834A (en) * | 2013-04-17 | 2013-07-24 | 岳阳林纸股份有限公司 | Energy-saving environment-friendly continuous cooking process |
| CN203336807U (en) * | 2013-05-15 | 2013-12-11 | 中冶纸业银河有限公司 | Device for heating pulp washing spray water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842493A (en) * | 2018-05-31 | 2018-11-20 | 张玉莲 | A kind of pulp manufacture equipment |
| CN109487610A (en) * | 2018-12-26 | 2019-03-19 | 广西粤桂广业控股股份有限公司 | A kind of method of the direct pulping by cooking of fresh bagasse |
| CN112342814A (en) * | 2020-11-19 | 2021-02-09 | 横县东糖糖业有限公司纸业分公司 | Method for producing high-strength natural-color paper pulp by taking eucalyptus bark as raw material |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171121 |