CN105821690A - Method for preparing unbleached pulp from rice straw - Google Patents
Method for preparing unbleached pulp from rice straw Download PDFInfo
- Publication number
- CN105821690A CN105821690A CN201610181249.6A CN201610181249A CN105821690A CN 105821690 A CN105821690 A CN 105821690A CN 201610181249 A CN201610181249 A CN 201610181249A CN 105821690 A CN105821690 A CN 105821690A
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- CN
- China
- Prior art keywords
- pulp
- rice straw
- steaming
- natural color
- decocting
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
-
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/34—Other mills or refiners
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses a method for preparing unbleached pulp from rice straw.The method comprises the steps of 1, segmenting rice straw; 2, feeding straw segments into a steaming bin for pre-steaming and then into a continuous cooking device to be cooked, wherein during cooking, 1.5-2% of potassium hydroxide, 1.2-1.5% of ammonium sulfite and 1.2-1.5% of sodium tripolyphosphate are added according to the weight of straw segments; 3, feeding the product obtained through cooking into a double-screw pulping machine for rubbing fibrillation, so that the unbleached pulp is obtained.The method has the advantages that pulp forming efficiency is high, and pulp yield can reach 75-80%; fiber quality is high, the b/c ratio of wastewater generated by a system is high, the biochemical purpose can be realized quite easily, a biological treatment method can be adopted, and cost can be saved by about 1/3 compared with traditional chemical pulping methods.
Description
Technical field
A kind of method that the present invention relates to rice straw natural color pulp.
Background technology
According to State Statistics Bureau's relevant statistics, within 2014, national Oryza glutinosa sown area is 30,310,000 hectares, Oryza glutinosa total output is 1.72 hundred million tons, understand according to the estimation algorithm (1 kilogram of Oryza glutinosa about produces 1.1 kilograms of straws) of crop yield with straw, China there are about the Oryza glutinosa straw of 1.89 hundred million tons every year, and annual reserves are the abundantest.
The main way of the process of Oryza glutinosa straw has at present: chopping and returning, on-site incineration, biomass power generation, pulping and paper-making etc..Chopping and returning affects the sowing in the coming year, has increased the weight of pest and disease damage；Biomass power generation is owing to being affected by haul distance, and beyond the increase at double of transportation radius cost of transportation, generating is not made money；On-site incineration serious environment pollution, is prohibited by country.
Oryza glutinosa straw, when pulping and paper-making, typically uses soda pulping process, and the black liquor of generation is difficult to carry out a biological disposal upon, and pulp yield is low less than 50%, and fiber is short.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defect, it is provided that a kind of method of rice straw natural color pulp.
In order to solve above-mentioned technical problem, the invention provides following technical scheme:
The method of rice straw natural color pulp, comprises the steps:
(1) rice straw is cut into material section；
(2) material section first send decatize storehouse to steam in advance, is re-fed into even steam device and carries out steaming and decocting, by expecting addition 1.5～the potassium hydroxide of 2%, 1.2～the ammonium sulfite of 1.5%, 1.2～the sodium tripolyphosphate of 1.5% based on section weight during steaming and decocting；
(3) material after steaming and decocting send double-screw pulp-milling to carry out stranding to rub sub-wire, obtain natural color pulp.
Further, the material segment length 30-40mm of step (1).
Further, steaming and decocting solid-liquid ratio is 1:5, and temperature is 120～125 DEG C, and the time is 55～60min.
Further, the material elder generation spiral dehydration after steaming and decocting, then give double-screw pulp-milling to carry out stranding to rub sub-wire.
Beneficial effects of the present invention
1, pulping efficiency is high, and pulp yield can reach 75～80%.
2, fiber quality is good, and average fiber length reaches 3.26um, and length and width ratio is big.
3, the waste water b/c ratio that system produces is high, can reach about 0.5, and easily biochemical, water processes the way that can use biological treatment, specifies direction for paper-making zero discharge.
4, technological process is simple, slurrying low cost.Escapable cost about 1/3 compared with tradition chemical pulping.
Detailed description of the invention
Hereinafter the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
Embodiment 1
1, by whole plant Oryza glutinosa bar, the material section of 30～40mm length is cut into chaffcutter (producer: Tuo Ni Machinery Manufacturing Co., Ltd. of Zhangqiu City model: QC50), more standby after removing the removal of impurity and fines with drum sieve (producer: Tuo Ni Machinery Manufacturing Co., Ltd. of Zhangqiu City model YTS800 :).
2, raw material (material section) belt conveyor (producer: Dandong Aomei light industry and machinery company limited model: S650) got ready is delivered to decatize storehouse (producer: model :) and carries out pre-steaming (normal pressure, time 1-10min), it is delivered to even steam device (producer: Tianjin Zhong Qing Machinery Co., Ltd. model: FD150) through material plug spiral (producer: Dandong Aomei light industry and machinery company limited model: QZC25) again and carries out continuously cooking, by expecting addition 1.5～the potassium hydroxide of 2% based on section weight in digestion process, 1.2～the ammonium sulfite of 1.5% and 1.2～the sodium tripolyphosphate of 1.5%, solid-liquid ratio is 1:5, temperature is 120～125 DEG C, time is 55～60min.
3, well-done material is delivered to spiral dewaterer (producer: Jiangsu Jin Wo Machinery Co., Ltd. model: TSL480) and is dehydrated, material after dehydration enters double-screw pulp-milling (producer: Jiangsu Jin Wo Machinery Co., Ltd. model: TSP240) to carry out stranding and rubs sub-wire, prepares natural color pulp.
4, natural color pulp is sent into high-density paste mill (producer: Jilin Jing Hao Machinery Manufacturing Co., Ltd. model: TDX1100) and carries out high consistency beating, after mill after the inverse formula of 4 press masters (producer: Dandong Aomei light industry and machinery company limited model: AOM800) is washed, entrance stock tank is diverted oneself, after pastime, starch upper paper machine after highly concentrated slagging-off, screening.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. the method for rice straw natural color pulp, comprises the steps:
(1) rice straw is cut into material section；
(2) material section first send decatize storehouse to steam in advance, is re-fed into even steam device and carries out steaming and decocting, by expecting addition 1.5～the potassium hydroxide of 2%, 1.2～the ammonium sulfite of 1.5%, 1.2～the sodium tripolyphosphate of 1.5% based on section weight during steaming and decocting；
(3) material after steaming and decocting send double-screw pulp-milling to carry out stranding to rub sub-wire, obtain natural color pulp.
The method of rice straw natural color pulp the most according to claim 1, it is characterised in that the material segment length 30-40mm of step (1).
The most according to claim 1, the method for rice straw natural color pulp, it is characterised in that steaming and decocting solid-liquid ratio is 1:5, temperature is 120～125 DEG C, and the time is 55～60min.
The method of rice straw natural color pulp the most according to claim 1, it is characterised in that the material elder generation spiral dehydration after steaming and decocting, then give double-screw pulp-milling to carry out stranding to rub sub-wire.
5. the natural color pulp prepared according to the arbitrary described method of claim 1-4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181249.6A CN105821690A (en) | 2016-03-28 | 2016-03-28 | Method for preparing unbleached pulp from rice straw |
| PCT/CN2016/108936 WO2017166860A1 (en) | 2016-03-28 | 2016-12-07 | Method for producing brownstock pulp using straws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181249.6A CN105821690A (en) | 2016-03-28 | 2016-03-28 | Method for preparing unbleached pulp from rice straw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105821690A true CN105821690A (en) | 2016-08-03 |
Family
ID=56525325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610181249.6A Pending CN105821690A (en) | 2016-03-28 | 2016-03-28 | Method for preparing unbleached pulp from rice straw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105821690A (en) |
| WO (1) | WO2017166860A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166860A1 (en) * | 2016-03-28 | 2017-10-05 | 新疆国力源投资有限公司 | Method for producing brownstock pulp using straws |
| CN114481665A (en) * | 2022-01-17 | 2022-05-13 | 平湖荣成环保科技有限公司 | Sizing agent filtering device for bobbin base paper processing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131713A (en) * | 1995-09-21 | 1996-09-25 | 河北省国营大曹庄农场造纸厂 | Production of high-strength corrugated base paper with straw pulp by neutral ammonium sulfite process |
| CN101215794A (en) * | 2008-01-11 | 2008-07-09 | 晏永祥 | Zero residual base normal-pressure or low-pressure boiling high-concentration pulp preparing method by using base process |
| CN101824771A (en) * | 2009-06-13 | 2010-09-08 | 汇鑫生物浆纸股份有限公司 | Production process of high-strength corrugated base paper |
| CN104746381A (en) * | 2015-03-16 | 2015-07-01 | 浙江华川实业集团有限公司 | Regenerative high-strength corrugating base paper and preparation process thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953287A (en) * | 2011-08-19 | 2013-03-06 | 刘杰 | Preparation method for rape stem paper pulp |
| US10087577B2 (en) * | 2014-09-12 | 2018-10-02 | Bio Ag Resources, Inc. | Systems, devices and methods for agricultural product pulping |
| CN104746373A (en) * | 2015-03-05 | 2015-07-01 | 新疆国力源环保科技有限公司 | Preparation process of broussonetia papyrifera natural-color semi-chemimechanical pulp |
| CN105256624A (en) * | 2015-09-18 | 2016-01-20 | 新疆国力源投资有限公司 | Method for preparing natural color bamboo pulp |
| CN105256625A (en) * | 2015-09-18 | 2016-01-20 | 新疆国力源投资有限公司 | Method for preparing bleached bamboo pulp |
| CN105821690A (en) * | 2016-03-28 | 2016-08-03 | 新疆国力源环保科技有限公司 | Method for preparing unbleached pulp from rice straw |
-
2016
- 2016-03-28 CN CN201610181249.6A patent/CN105821690A/en active Pending
- 2016-12-07 WO PCT/CN2016/108936 patent/WO2017166860A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131713A (en) * | 1995-09-21 | 1996-09-25 | 河北省国营大曹庄农场造纸厂 | Production of high-strength corrugated base paper with straw pulp by neutral ammonium sulfite process |
| CN101215794A (en) * | 2008-01-11 | 2008-07-09 | 晏永祥 | Zero residual base normal-pressure or low-pressure boiling high-concentration pulp preparing method by using base process |
| CN101824771A (en) * | 2009-06-13 | 2010-09-08 | 汇鑫生物浆纸股份有限公司 | Production process of high-strength corrugated base paper |
| CN104746381A (en) * | 2015-03-16 | 2015-07-01 | 浙江华川实业集团有限公司 | Regenerative high-strength corrugating base paper and preparation process thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166860A1 (en) * | 2016-03-28 | 2017-10-05 | 新疆国力源投资有限公司 | Method for producing brownstock pulp using straws |
| CN114481665A (en) * | 2022-01-17 | 2022-05-13 | 平湖荣成环保科技有限公司 | Sizing agent filtering device for bobbin base paper processing |
| CN114481665B (en) * | 2022-01-17 | 2024-03-01 | 平湖荣成环保科技有限公司 | Slurry filtering device for bobbin body paper processing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017166860A1 (en) | 2017-10-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161025 Address after: 830000, No. 2, building 6, Nanshan New District office building, the Xinjiang Uygur Autonomous Region, Shihezi Applicant after: Xinjiang Guoliyuan Investment Co., Ltd. Address before: 830000, No. 2, building 6, Nanshan New District office building, the Xinjiang Uygur Autonomous Region, Shihezi Applicant before: Xinjiang Power Eco Japan Co., Ltd. of state |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |