CN100526551C - Cotton-short-fiber continuous steam-poaching method and apparatus - Google Patents
Cotton-short-fiber continuous steam-poaching method and apparatus Download PDFInfo
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- CN100526551C CN100526551C CNB2005100151248A CN200510015124A CN100526551C CN 100526551 C CN100526551 C CN 100526551C CN B2005100151248 A CNB2005100151248 A CN B2005100151248A CN 200510015124 A CN200510015124 A CN 200510015124A CN 100526551 C CN100526551 C CN 100526551C
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Abstract
The invention discloses a fuzz fiber continuously steaming bleaching method and the device that takes pre-mediating and cutting to the cotton fiber by disc mill or twin-screw attrition mill before continuously steaming bleaching process. The method avoids the problems of bulb up, twining, and the blockage to the screw feed, and it makes the whole process use few devices, simple technology and consume lower energy. The device has good sealing property that is especially suitable for continuously steaming and bleaching for alkali-oxygen and alkaline hydrogen peroxide.
Description
Technical field
The present invention relates to a kind of cotton-short-fiber continuous steam-poaching method and device thereof that is used for fields such as military project, chemical fibre, papermaking and cellulose derivative.
Background technology
Cotton linter is the staple fibre that a kind of cottonseed epidermis after ginning strips down, and it is to extract cellulosic important source material, has advantages such as content of cellulose height, fibre length are relatively long, thereby is a kind of paper making raw material of high-quality.Traditional pulp-making of cotton linter adopts rotary spherical digester or batch (-type) alkaline process such as revolution steamer etc. to carry out boiling mostly, because shortcoming such as that the cotton pulp that this method of employing is made has is of poor quality, output, yield and whiteness are low, thereby it is replaced by the continuously cooking method just gradually.Nineteen eighty-two, the Buckeye fiber company of the U.S. at first adopted the transverse tube continuous steamer to carry out the cotton linter continuously cooking, because the rotor valve feeding that this method adopts can companys of making steams the steam effusion in the pipe, because the loss of cooking liquor is big, and is unsuitable for alkali one oxygen or hydrogen peroxide and steams continuously and float.Disclose a kind of continuous alkali one oxygen cotton linter in the Japan Patent the 6012991st and steamed bleaching method, this method is to add alkali and oxidant in the transverse tube continuous steamer, and the cotton pulp yield of steaming after floating is 83%, and whiteness has only 75%, thereby whiteness is not high.The JOSEF MEISSNER company of Germany adopts earlier cotton linter to be broken into to put into a steaming after the cake and float device and steam and float, and then the cotton pulp cake after steaming floated is discongested the discontinuous method of pulping, because this method complex procedures, lifting is frequent and the labour intensity operator is big, thereby be unsuitable for large-scale production.The FRAMATOME company of France adopts the stranding of double-screw pulp-milling (Bivis) two cascades to grind methods such as adding alkaline hydrogen peroxide simultaneously to handle cotton linter, and the process of floating is steamed in continuity in normal pressure retention groove, because the scale of double-screw pulp-milling is all below the 40t/d slurry, have not yet to see large scale computer, and the requirement on machining accuracy height of this equipment, thereby yield poorly and the production cost height.Domestic certain paper plant adopts to utilize many hydrabeating machines that cotton linter is pulled an oar earlier, carry out the continuous method of floating of steaming of low pressure with sending into the transverse tube continuous steamer behind the de-watering of slurries then, because the usage quantity of hydrabeating machine is many, thereby power consumption is big, and whole flow process is too complicated.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of flow setting advantages of simple, power consumption and cost are low, and are applicable to that alkali one oxygen and alkaline hydrogen peroxide steam cotton-short-fiber continuous steam-poaching method and the device thereof that floats continuously.
In order to achieve the above object, cotton-short-fiber continuous steam-poaching method provided by the invention comprises the following steps:
(1) utilize opener to open through the cotton linter raw material packet of weighing;
(2) utilize to dredge cotton machine and remove foreign material such as cotton seed hull in the cotton linter raw material, cotton boll shell, utilize the metal trap to remove metal impurities then;
(3) cotton linter after will purifying offers mill or double-screw pulp-milling through feeder, adds entry or soup simultaneously and carries out middle concentrated jordaning;
(4) will grind disposed slurry and put into temporary measuring chute;
(5) will offer plug formula scroll feeder from the slurry of temporary measuring chute and it will be squeezed into the material plug;
(6) make the cotton linter that forms material plug shape enter T type pipe and produce brokenly, add simultaneously to steam and float soup and steam and it is mixed with cotton linter, the liquor ratio in the T type pipe is up to 1: 10,120 ℃ of temperature, pressure 0.2Pa;
(7) make the slurry of discharging pass through broken blender, float pipe further to mix and to react through steaming then to be mixed fully from T type pipe;
(8) make the pulping that floats pipe from steaming utilize blow-off valve to spurt jetting storehouse after by discharger, deliver to the washing operation at last.
Be used to realize that the device of method of the present invention comprises:
Opener is used to open the cotton linter raw material packet through weighing;
Dredge cotton machine, be used for removing the foreign material such as cotton seed hull, cotton boll shell of cotton linter raw material;
The metal trap is used for removing the metal impurities of cotton linter raw material;
Feeder makes the raw material quantitative and even that enters mill or double-screw pulp-milling;
Mill or double-screw pulp-milling are tentatively discongested cotton fiber and are prescinded;
Temporary measuring chute will grind disposed slurry and quantitatively offer plug formula scroll feeder;
Plug formula scroll feeder makes the mill disposed slurry form the plug shape and also offers T type pipe continuously;
T type pipe, it is broken that material plug shape slurry is produced, and utilize the steaming that adds simultaneously to float soup and steam and steam continuously and float;
Broken blender floats soup with steaming and slurry fully mixes;
Pipe is floated in steaming, makes to steam to float soup and further mixing and reaction of slurry;
Discharger, blow-off valve and jetting storehouse are used for the temporary pulping that steams after floating, and offer the washing operation at last.
The refining concentration of described mill or double-screw pulp-milling is 15%～30%.
Slurry concentration in the described plug formula scroll feeder is 40%～50%.
Cotton-short-fiber continuous steam-poaching method provided by the invention and device thereof mainly be cotton fiber steam continuously float before in the utilization dense mill or double-screw pulp-milling it is tentatively discongested and prescinds, not only can avoid steaming continuously the problems such as " balling " that occur because of cotton fiber is long in the process, " making a rope by twisting the strands together " of floating like this, also can avoid filling in the formula scroll feeder stops up, and the used equipment of whole flow process is few, operation is simple, thereby power consumption and cost are lower.In addition, therefore reasonable in design the and good airproof performance of continuous steaming bleaching device provided by the invention is specially adapted to continuous steaming of alkali-oxygen and alkaline hydrogen peroxide and floats.
Description of drawings
Below in conjunction with the drawings and specific embodiments cotton-short-fiber continuous steam-poaching method provided by the invention and device thereof are elaborated.
Fig. 1 is a cotton-short-fiber continuous steam-poaching method flow chart provided by the invention.
The specific embodiment
As shown in Figure 1, in cotton-short-fiber continuous steam-poaching device provided by the invention, melting processes such as the weighing of cotton linter before the feeder, loose and purification are all identical with prior art.The purifying rate of getting the raw materials ready requires more than 85%, and percentage of impurity then is lower than 3%.Cotton fiber through feeder offers mill or double-screw pulp-milling with answering quantitative and even, add entry or soup simultaneously so that refining concentration is controlled at 15%～30%, thereby make cotton fiber obtain preliminary discongesting and prescinding, float problems such as " balling " that occur because of cotton fiber is long in the process, " making a rope by twisting the strands together " with the continuous steaming of avoiding the back.The abrasive disc profile of tooth of mill or double-screw pulp-milling can be screened by test.The mill disposed slurry can be temporary in temporary measuring chute, and quantitatively offer plug formula scroll feeder to form the material plug, offers T type pipe, broken blender and steaming then continuously and float pipe, seals up simultaneously to steam and float pipe to guarantee required steam pressure.Cotton linter concentration in forming material plug process can reach 40%～50%.Material plug shape cotton linter enter will produce behind the T type pipe broken, and with float soup and steam by the steaming of T type pipe top adding simultaneously and mix and react.In this equipment, liquor ratio can reach about 1: 10,120 ℃ of temperature, pressure 0.2Pa.In addition, have pneumatic counnter attack spray apparatus on the T type pipe, it occurs in the time of can preventing to expect to fill in fragmentation regurgitates phenomenon, thereby guarantees safety in production.Slurry and steaming are floated soup and are mixed fully in broken blender, and float in steaming and further to be mixed in the pipe and react.Can strictly control the quality and the uniformity coefficient of temperature, pressure, time, chemical liquid consumption and the cotton pulp of reaction according to technological requirement.Pulping after steaming is floated spurts in the jetting storehouse continuously through discharger, blow-off valve, uses in order to subsequent processing.In addition, also can add such as auxiliary agents such as stabilizing agent, surfactants simultaneously according to technological requirement.In sum, cotton-short-fiber continuous steam-poaching method provided by the invention is to adopt to pull an oar earlier afterwards to steam the technological process of floating, and the process of floating the back making beating with traditional elder generation's steaming is just in time opposite.
Claims (4)
1, a kind of cotton-short-fiber continuous steam-poaching method is characterized in that: described cotton-short-fiber continuous steam-poaching method comprises the following steps:
(1) utilize opener to open through the cotton linter raw material packet of weighing;
(2) the thin cotton machine of utilization is removed cotton seed hull, the cotton boll shell foreign material in the cotton linter raw material, utilizes the metal trap to remove metal impurities then;
(3) cotton linter after will purifying offers mill or double-screw pulp-milling through feeder, adds entry or soup simultaneously and carries out middle concentrated jordaning;
(4) will grind disposed slurry and put into temporary measuring chute;
(5) will offer plug formula scroll feeder from the slurry of temporary measuring chute and it will be squeezed into the material plug;
(6) make the cotton linter that forms material plug shape enter T type pipe and produce brokenly, add simultaneously to steam and float soup and steam and it is mixed with cotton linter, the liquor ratio in the T type pipe is up to 1: 10,120 ℃ of temperature, pressure 0.2Pa;
(7) make the slurry of discharging pass through broken blender, float pipe further to mix and to react through steaming then to be mixed fully from T type pipe;
(8) make the pulping that floats pipe from steaming utilize blow-off valve to spurt jetting storehouse after by discharger, deliver to the washing operation at last.
2, a kind of device that is used to realize the described method of claim 1, it is characterized in that: described device comprises:
Opener is used to open the cotton linter raw material packet through weighing;
Dredge cotton machine, be used for removing cotton seed hull, the cotton boll shell foreign material of cotton linter raw material;
The metal trap is used for removing the metal impurities of cotton linter raw material;
Feeder makes the raw material quantitative and even that enters mill or double-screw pulp-milling;
Mill or double-screw pulp-milling are tentatively discongested cotton fiber and are prescinded;
Temporary measuring chute will grind disposed slurry and quantitatively offer plug formula scroll feeder;
Plug formula scroll feeder makes the mill disposed slurry form the plug shape and also offers T type pipe continuously;
T type pipe, it is broken that material plug shape slurry is produced, and utilize the steaming that adds simultaneously to float soup and steam and steam continuously and float;
Broken blender floats soup with steaming and slurry fully mixes;
Pipe is floated in steaming, makes to steam to float soup and further mixing and reaction of slurry;
Discharger, blow-off valve and jetting storehouse are used for the temporary pulping that steams after floating, and offer the washing operation at last.
3, device according to claim 2 is characterized in that: the refining concentration of described mill or double-screw pulp-milling is 15%～30%.
4, device according to claim 2 is characterized in that: the slurry concentration in the described plug formula scroll feeder is 40%～50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100151248A CN100526551C (en) | 2005-09-20 | 2005-09-20 | Cotton-short-fiber continuous steam-poaching method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100151248A CN100526551C (en) | 2005-09-20 | 2005-09-20 | Cotton-short-fiber continuous steam-poaching method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1936177A CN1936177A (en) | 2007-03-28 |
| CN100526551C true CN100526551C (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100151248A Expired - Fee Related CN100526551C (en) | 2005-09-20 | 2005-09-20 | Cotton-short-fiber continuous steam-poaching method and apparatus |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824763B (en) * | 2009-03-03 | 2012-08-08 | 钟祥金汉江精制棉有限公司 | System for cooking purified cottons |
| CN103352386B (en) * | 2013-06-17 | 2015-06-03 | 如东县海宇纤维制品有限公司 | Cotton linter production line |
| CN107044062B (en) * | 2017-04-24 | 2019-03-22 | 保定钞票纸业有限公司 | A kind of the dry raw material preparation system and technique of slurrying cotton fiber |
| CN108425262A (en) * | 2018-03-12 | 2018-08-21 | 黑龙江中丹建业生物能源有限公司 | Stalk cellulose alcohol fuel pretreatment unit and processing method |
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2005
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Non-Patent Citations (10)
| Title |
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| 棉短绒低污染制浆工艺的研究. 陈嘉川，杨桂花，李昭成.中国造纸，第3期. 1999 |
| 棉短绒低污染制浆工艺的研究. 陈嘉川，杨桂花，李昭成.中国造纸，第3期. 1999 * |
| 棉短绒制浆工艺. 李明，刘书钗，林友锋.西北轻工业学院学报，第20卷第3期. 2002 |
| 棉短绒制浆工艺. 李明，刘书钗，林友锋.西北轻工业学院学报，第20卷第3期. 2002 * |
| 棉短绒制浆新工艺试验报告. 唐继福，李凤翥.中华纸业，第25卷第8期. 2004 |
| 棉短绒制浆新工艺试验报告. 唐继福，李凤翥.中华纸业，第25卷第8期. 2004 * |
| 棉短绒连续制浆. 吴福骞.纸和造纸，第5期. 1995 |
| 棉短绒连续制浆. 吴福骞.纸和造纸，第5期. 1995 * |
| 论棉短绒制浆技术的发展趋势. 张奇龄，陈樵鉴，胡镝.中国造纸学会第六届学术年会论文选编. 1991 |
| 论棉短绒制浆技术的发展趋势. 张奇龄，陈樵鉴，胡镝.中国造纸学会第六届学术年会论文选编. 1991 * |
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Granted publication date: 20090812 Termination date: 20120920 |