CN107858847A - One kind retains string ecosystem steaming plant and its technique - Google Patents
One kind retains string ecosystem steaming plant and its technique Download PDFInfo
- Publication number
- CN107858847A CN107858847A CN201711374769.XA CN201711374769A CN107858847A CN 107858847 A CN107858847 A CN 107858847A CN 201711374769 A CN201711374769 A CN 201711374769A CN 107858847 A CN107858847 A CN 107858847A
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- Prior art keywords
- hot
- pump
- black liquor
- digester
- hot water
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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
- D21C7/00—Digesters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses one kind to retain string ecosystem steaming plant and its technique, adds cold black liquid in digester first, decoction and bamboo chip is fully permeated, accelerates the speed of boiling delignification；The Pipe installing of the heater and hot water storgae has thermometer and heater outlet regulating valve, pump inlet valve is provided between hot water storgae and circulating pump, the other end pipeline of heater is provided with regulating valve, when temperature reaches the predetermined value of thermometer, close pump inlet valve, stop circulating pump hot-water supply, reduce the degraded of the compositions such as cellulose；Black liquor converter one end connects digester by pipeline, and is provided with three outlets and connects alkali lye preheater, hot black liquor groove and warm water tank by pipeline, reclaims heat energy, cost-effective；Reaction time of the invention is short, and be swift in response uniform, the low cellulose and hemicellulose protected to greatest extent needed for bamboo plant raw pulp of temperature, and steam saving amount, technique are simple, and preparation is convenient, green, cost is low, and slurrying rate is high.
Description
Technical field
The present invention relates to pulping and digesting engineering device technique field, particularly it is a kind of retain string ecosystem steaming plant and
Its technique.
Background technology
May also extensive use in other fields.Paper is the necessity in national product life.In traditional concept, paper
Zhang Yuebai is more good-looking, so just improving pulp brightness by various processes.As national life level improves, environmental protection meaning
Know constantly enhancing, have larger lifting to healthy living idea, it is thus understood that bleach the harmfulness of paper, everybody is recognized paper
There occurs compared with big change for knowledge.Due to only focusing on Paper White Degree in the past, string ecosystem is not paid close attention to.And in prior art
In, the process of boiling is mainly the process of delignification.Meanwhile inevitably make portion of cellulose and hemicellulose by one
Determine the degraded of degree.During conventional boil, using white liquor and clear water boiling, obtained paper pulp yellow and bright color, portion is remained
Point string ecosystem characteristic, but due to the effect of thermophilic digestion and high concentration cooking liquor, lignin, fiber in raw material
Certain chemical change can occur for element and hemicellulose and other compositions, by different degrees of degraded and damage；And pass
Boiling consumption quantity of steam of uniting is larger, digestion time length.And conventional energy-saving boiling is used, by using black liquor heat energy, it is possible to reduce
Steam consumption, but black liquor repeatedly replaces use, pollutes slurry, destroys string ecosystem characteristic.
The content of the invention
The shortcomings that it is an object of the invention to overcome prior art, there is provided one kind retains string ecosystem steaming plant
And its technique.
The purpose of the present invention is achieved through the following technical solutions：One kind retains string ecosystem steaming plant, bag
Digester, hot black liquor groove and thermokalite liquid bath are included, the digester is connected by pipeline with black liquor converter, and black liquor converter passes through
Outlet A is connected to warm water tank, and warm water tank is connected with pre- heat pump, and pre- heat pump is connected to hot water storgae, hot water storgae and circulation by pipeline
Pump is connected by pipeline, and pump inlet valve is provided between hot water storgae and circulating pump, and the other end of circulating pump passes through pipeline
It is connected with heater, heater is connected with hot water storgae, and thermometer and heater outlet are provided between heater and hot water storgae
Regulating valve, regulating valve is provided with the heater, liquid level gauge, one end of hot water storgae and boiling are provided with the hot water storgae
Pot is connected；
The black liquor converter is connected by exporting B with alkali lye preheater, and one end of alkali lye preheater is connected with thermokalite liquid bath, heat
One end of lye tank (vat) is connected with digester, and is provided with force (forcing) pump one between thermokalite liquid bath and digester；
The hot black liquor converter is connected by import with hot black liquor groove, and one end of the hot black liquor groove is connected with digester, and
Force (forcing) pump two is provided between hot black liquor groove and digester；
Preferably, the pipeline is provided with some.
Preferably, the digester is provided with four.
Preferably, four digesters are set up in parallel.
Described steaming plant retains the technique of string ecosystem, and it comprises the following steps：
S1, bamboo chip is added into digester in advance, the interior addition hot black liquor of alkali lye, hot black liquor groove and warm water tank are added in alkali lye preheater
Interior addition cold water, and force (forcing) pump one, force (forcing) pump two, circulating pump and heater outlet regulating valve, regulating valve and pump inlet valve
Close, then add cold black liquid and the bamboo chip in digester is presoaked；
S2 is opened while force (forcing) pump two adds the hot black liquor in hot black liquor groove and is opened the thermokalite that force (forcing) pump one is added in hot caustic bath
Low temperature is carried out to bamboo chip to be impregnated with；
Warm water after S3, preheating is pumped into hot water storgae by preheating, closes pre- heat pump, open the circulation pump inlet valve and circulation
Pump, circulating pump form loop with heater, hot water storgae, and heater circulates to be heated to warm water, until reaching design temperature, heater
Delivery after heating finally closes pump inlet valve to hot water storgae, and the hot water in hot water storgae, which is circulated, is pumped into steaming
In saucepan；
S4, force (forcing) pump one is opened, circulating pump, which adds the heat alkali liquid in hot caustic bath the hot water in hot water storgae and force (forcing) pump one, to be steamed
Saucepan carries out boiling to bamboo chip, and black liquor converter absorbs heat energy by pipeline after boiling terminates；
The warm water preheated in S5, the S3 is that black liquor converter absorbs heat energy from hot black liquor groove, and a portion heat passes through
Outlet A is conveyed to carry out being preheated to warm water to the cold water in warm water tank, and a part of heat is conveyed to alkali lye preheater by exporting B
Middle alkali lye is preheated.
The technological merit of the present invention：（1）Cold black liquid is added in digester first, decoction and bamboo chip is fully permeated, adds
The speed speed of boiling delignification；The Pipe installing of the heater and hot water storgae has thermometer and heater outlet regulating valve,
Pump inlet valve is provided between hot water storgae and circulating pump, the other end pipeline of heater is provided with regulating valve, when temperature arrives
Up to thermometer predetermined value when, close pump inlet valve, stop circulating pump hot-water supply, reduce the drop of the composition such as cellulose
Solution；Black liquor converter one end connects digester by pipeline, and is provided with three outlets and connects alkali lye preheater, heat by pipeline
Black liquor slot and warm water tank, heat energy is reclaimed, it is cost-effective；（2）Reaction time of the invention is short, and be swift in response uniform, the low maximum of temperature
The cellulose and hemicellulose that protect needed for bamboo plant raw pulp of limit, steam saving amount, technique are simple, preparation side
Just it is, green, cost is low, slurrying rate is high.
Brief description of the drawings
Fig. 1 is the process chart of the present invention；
In figure：1st, heater outlet regulating valve；2nd, thermometer；3rd, regulating valve；4th, liquid level gauge；5th, pump inlet valve；6th, export
A；7th, B is exported；8th, import；9th, force (forcing) pump one；10th, force (forcing) pump two.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to following institute
State.
As shown in figure 1, a kind of retain string ecosystem steaming plant, including digester, hot black liquor groove and heat alkali liquid
Groove, the digester are connected by pipeline with black liquor converter, and black liquor converter is connected to warm water tank, warm water tank by exporting A6
Be connected with pre- heat pump, pre- heat pump is connected to hot water storgae by pipeline, and hot water storgae is connected with circulating pump by pipeline, and hot water storgae and
Pump inlet valve 5 is provided between circulating pump, the other end of circulating pump is connected by pipeline with heater, heater and hot water
Groove is connected, and thermometer 2 and heater outlet regulating valve 1 are provided between heater and hot water storgae, is set on the heater
Regulating valve 3 is equipped with, liquid level gauge 4 is provided with the hot water storgae, one end of hot water storgae is connected with digester；
The black liquor converter is connected by exporting B7 with alkali lye preheater, and one end of alkali lye preheater is connected with thermokalite liquid bath,
One end of thermokalite liquid bath is connected with digester, and is provided with force (forcing) pump 1 between thermokalite liquid bath and digester；
The hot black liquor converter is connected by import 8 with hot black liquor groove, and one end of the hot black liquor groove is connected with digester, and
Force (forcing) pump 2 10 is provided between hot black liquor groove and digester.
The pipeline is provided with some.
The digester is provided with four.
Four digesters are set up in parallel.
Described steaming plant retains the technique of string ecosystem, and it comprises the following steps：
S1, bamboo chip is added into digester in advance, the interior addition hot black liquor of alkali lye, hot black liquor groove and warm water tank are added in alkali lye preheater
Interior addition cold water, and force (forcing) pump 1, force (forcing) pump 2 10, circulating pump and heater outlet regulating valve 1, regulating valve 3 and circulating pump enter
Mouth valve 5 is closed, and then adds cold black liquid and the bamboo chip in digester is presoaked；
S2, simultaneously, opens force (forcing) pump 2 10 and adds the hot black liquor in hot black liquor groove and open force (forcing) pump 1 and add in hot caustic bath
Thermokalite carries out low temperature to bamboo chip and is impregnated with；
Warm water after S3, preheating is pumped into hot water storgae by preheating, closes pre- heat pump, open the circulation pump inlet valve 5 and is followed
Ring pump, circulating pump form loop with heater, hot water storgae, and heater circulates to be heated to warm water, until reaching design temperature, heating
Delivery after device heating arrives hot water storgae, finally closing pump inlet valve 5, and the hot water in hot water storgae, which is circulated, to be pumped into
In digester；
S4, force (forcing) pump 1 is opened, circulating pump adds the heat alkali liquid in hot caustic bath the hot water in hot water storgae and force (forcing) pump 1
Digester carries out boiling to bamboo chip, and black liquor converter absorbs heat energy by pipeline after boiling terminates；
The warm water preheated in S5, the S3 is that black liquor converter absorbs heat energy from hot black liquor groove, and a portion heat passes through
Outlet A6 is conveyed to carry out being preheated to warm water to the cold water in warm water tank, and a part of heat is conveyed to alkali lye preheating by exporting B7
Alkali lye is preheated in device.
The course of work of the present invention is as follows：Bamboo chip is added in digester, adding cold black liquid by pipeline presoaks, and has presoaked
Thermokalite in the hot black liquor and hot caustic bath that add in hot black liquor groove later carries out low temperature and is impregnated with, and is added finally by pipeline by black liquor
Thermokalite in hot water and hot caustic bath that converter preheating is heated by heater again carries out heating boiling.Boiling terminates, black liquor
Heat exchanger reclaims heat energy by import 8, and for pre- heat alkali liquid and the warm water of warm water tank, the cold water of warm water tank passes through after being preheated
Preheating is pumped into hot water storgae, and open the circulation pump inlet valve and circulating pump, circulating pump is repeatedly by the delivery in hot water storgae
Assigned temperature is heated to heater, the hot water heated is then added in digester through piping into hot water storgae；Exist first
Cold black liquid is added in digester, decoction and bamboo chip is fully permeated, accelerates the speed of boiling delignification；The heater and heat
The Pipe installing of tank has thermometer and heater outlet regulating valve, and pump inlet is provided between hot water storgae and circulating pump
Valve, the other end pipeline of heater are provided with regulating valve, when temperature reaches the predetermined value of thermometer, close pump inlet
Valve, stop circulating pump hot-water supply, reduce the degraded of the compositions such as cellulose；Black liquor converter one end connects boiling by pipeline
Pot, and be provided with three outlets and alkali lye preheater, hot black liquor groove and warm water tank are connected by pipeline, heat energy is reclaimed, it is cost-effective.
Claims (5)
1. one kind retains string ecosystem steaming plant, it is characterised in that：Including digester, hot black liquor groove and heat alkali liquid
Groove, the digester are connected by pipeline with black liquor converter, and black liquor converter is by exporting A（6）It is connected to warm water tank, warm water
Groove is connected with pre- heat pump, and pre- heat pump is connected to hot water storgae by pipeline, and hot water storgae is connected with circulating pump by pipeline, and hot water storgae
Pump inlet valve is provided between circulating pump（5）, the other end of circulating pump is connected by pipeline with heater, heater and
Hot water storgae is connected, and thermometer is provided between heater and hot water storgae（2）With heater outlet regulating valve（1）, the heating
Regulating valve is provided with device（3）, liquid level gauge is provided with the hot water storgae（4）, one end of hot water storgae is connected with digester；
The black liquor converter is by exporting B（7）It is connected with alkali lye preheater, one end and the thermokalite liquid bath phase of alkali lye preheater
Even, one end of thermokalite liquid bath is connected with digester, and is provided with force (forcing) pump one between thermokalite liquid bath and digester（9）；
The hot black liquor converter passes through import（8）It is connected with hot black liquor groove, one end of the hot black liquor groove is connected with digester,
And force (forcing) pump two is provided between hot black liquor groove and digester（10）.
A kind of 2. reservation string ecosystem steaming plant according to claim 1, it is characterised in that：The pipeline is set
It is equipped with some.
A kind of 3. reservation string ecosystem steaming plant according to claim 1, it is characterised in that：The digester
It is provided with four.
A kind of 4. reservation string ecosystem steaming plant according to claim 3, it is characterised in that：Four steamings
Saucepan is set up in parallel.
5. the technique that steaming plant according to claim 1 retains string ecosystem, it is characterised in that：It include with
Lower step
S1, bamboo chip is added into digester in advance, the interior addition hot black liquor of alkali lye, hot black liquor groove and warm water tank are added in alkali lye preheater
Interior addition cold water, and force (forcing) pump one（9）, force (forcing) pump two（10）, circulating pump and heater outlet regulating valve（1）, regulating valve（3）With
Pump inlet valve（5）Close, then add cold black liquid and the bamboo chip in digester is presoaked；
S2, simultaneously, open force (forcing) pump two（10）The hot black liquor and unlatching force (forcing) pump one added in hot black liquor groove（9）Add hot caustic bath
In thermokalite to bamboo chip carry out low temperature be impregnated with；
Warm water after S3, preheating is pumped into hot water storgae by preheating, closes pre- heat pump, open the circulation pump inlet valve（5）With
Circulating pump, circulating pump form loop with heater, hot water storgae, and heater circulates to be heated to warm water, until reaching design temperature, is added
Delivery after hot device heating finally closes pump inlet valve to hot water storgae（5）, the hot water in hot water storgae is defeated by circulating pump
It is sent in digester；
S4, open force (forcing) pump one（9）, circulating pump is by the hot water in hot water storgae and force (forcing) pump one（9）By the heat alkali liquid in hot caustic bath
Add digester and boiling is carried out to bamboo chip, black liquor converter absorbs heat energy by pipeline after boiling terminates；
The warm water preheated in S5, the S3 is that black liquor converter absorbs heat energy from hot black liquor groove, and a portion heat passes through
Export A（6）It is conveyed to and the cold water in warm water tank is carried out to be preheated to warm water, a part of heat is by exporting B（7）It is conveyed to alkali lye
Alkali lye is preheated in preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374769.XA CN107858847B (en) | 2017-12-19 | 2017-12-19 | Device and process for preserving plant fiber original ecology cooking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374769.XA CN107858847B (en) | 2017-12-19 | 2017-12-19 | Device and process for preserving plant fiber original ecology cooking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107858847A true CN107858847A (en) | 2018-03-30 |
| CN107858847B CN107858847B (en) | 2023-08-04 |
Family
ID=61706525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711374769.XA Active CN107858847B (en) | 2017-12-19 | 2017-12-19 | Device and process for preserving plant fiber original ecology cooking |
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| Country | Link |
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| CN (1) | CN107858847B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867133A (en) * | 2018-06-28 | 2018-11-23 | 谢章春 | A kind of broken bamboo digesting apparatus that cooking liquor recycles |
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| US20060231222A1 (en) * | 2005-04-19 | 2006-10-19 | Bianchini Craig A | Method and apparatus to decrease steam consumption in conventional batch digesters |
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| CN106192510A (en) * | 2015-05-08 | 2016-12-07 | 天津市恒脉机电科技有限公司 | A kind of phragmites communis starting pulps interval displacement cooking production system and method |
| CN106400568A (en) * | 2016-12-20 | 2017-02-15 | 墨宝股份有限公司 | Energy-saving environment-friendly displacement digestion process of wood and bamboo raw materials |
-
2017
- 2017-12-19 CN CN201711374769.XA patent/CN107858847B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5093773A (en) * | 1989-10-12 | 1992-03-03 | Fisher Controls International, Inc. | Processing system with heat recovery |
| US20060231222A1 (en) * | 2005-04-19 | 2006-10-19 | Bianchini Craig A | Method and apparatus to decrease steam consumption in conventional batch digesters |
| CN102226319A (en) * | 2011-06-03 | 2011-10-26 | 长沙理工大学 | Batch cooking cold blow device and cold blow method |
| CN202181476U (en) * | 2011-07-28 | 2012-04-04 | 曲传武 | Stewing circulating system |
| CN102517948A (en) * | 2011-12-29 | 2012-06-27 | 永州湘江纸业有限责任公司 | Method for pulping by mixing and boiling various fiber raw materials |
| CN103147332A (en) * | 2013-03-11 | 2013-06-12 | 杨安庆 | Tri-displacement cooking method |
| CN103352385A (en) * | 2013-06-28 | 2013-10-16 | 汶瑞机械(山东)有限公司 | Energy-saving and environment-friendly displacement cooking process for wood and bamboo raw materials |
| CN104452389A (en) * | 2014-11-04 | 2015-03-25 | 中国轻工业南宁设计工程有限公司 | Energy-saving pulping cooking sequence interlock control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867133A (en) * | 2018-06-28 | 2018-11-23 | 谢章春 | A kind of broken bamboo digesting apparatus that cooking liquor recycles |
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| CN107858847B (en) | 2023-08-04 |
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Address after: 622650 Mianyang City, Sichuan province county Ju River town Applicant after: Sichuan Huanlong daily necessities Co.,Ltd. Address before: 622650 Mianyang City, Sichuan province county Ju River town Applicant before: AN COUNTY PAPER Co.,Ltd. |
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