CN104886758A - Pulp mobility improving method during medium and high concentration pulping - Google Patents
Pulp mobility improving method during medium and high concentration pulping Download PDFInfo
- Publication number
- CN104886758A CN104886758A CN201510258997.5A CN201510258997A CN104886758A CN 104886758 A CN104886758 A CN 104886758A CN 201510258997 A CN201510258997 A CN 201510258997A CN 104886758 A CN104886758 A CN 104886758A
- Authority
- CN
- China
- Prior art keywords
- rake
- spiral
- helical axis
- additional
- conveying worm
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000004537 pulping Methods 0.000 title claims abstract description 15
- 239000002002 slurry Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 abstract description 6
- 238000009776 industrial production Methods 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 241000208125 Nicotiana Species 0.000 description 14
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 7
- 235000019504 cigarettes Nutrition 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
Abstract
The invention discloses a pulp mobility improving method during medium and high concentration pulping. The method comprises the steps of (1) dismounting a spiral shaft of a spiral conveyor; (2) removing part of spirals on the spiral shaft; (3) adding rakes; (4) performing mounting again. The method can be achieved by transforming prior equipment, that is, the spirals close to the outlet end of the spiral conveyor are replaced by the rakes of the same heights, and accordingly, the problem of caking due to high concentration of the outlet pulp can be well solved, and the method is convenient to operate, simple in process and low in cost. After the transformed spiral shaft with part of rakes is put into use, the caked pulp due to high concentration is scattered into uniform materials after passing through the outlet rakes, the materials can enter the next pulping process uniformly, the scattering process is easy to control, and the method is applicable to industrial production.
Description
Technical field
The invention belongs to papermaking-method reconstituted tobaccos production technical field, be specifically related to the method for slurry fluidity during high consistency pulping in a kind of improvement.
Background technology
Papermaking-method reconstituted tobaccos is through processing, restructuring by tobacco materials such as offal remaining in cigarette enterprise production process, offal and low inferior tobacco leaves, produce a kind of regenerative raw materials of the approximate natural baccy raw material meeting cigarette composition requirement, reconstituted tobacco is mixed with natural tobacco according to a certain percentage and is made cigarette.Its major significance is: improve tobacco material utilization rate, make full use of the waste of production of cigarettes process; Reduce cigarette tar content, improve cigarette grade.The production of reconstituted tobacco can increase Business Economic Benefit, can play again the effect of protection of the environment, has good social benefit.
The technique manufacturing reconstituted tobacco mainly contains three kinds: roll-in method, thick slurry processes and paper process, wherein paper process is because of the advantage of its each side, is widely used at tobacco business.Its technical process is: by offal, after offal and low inferior tobacco leaf add water and soak certain hour at an established temperature, by immersion system Separation of Solid and Liquid, wherein liquid phase is the leaching liquor containing solable matter, after refining concentrating, the coating fluid that the essence and flavoring agent of interpolation required for local flavor is made described in industry is for subsequent use, and solid phase is mainly insoluble fibre, make paper-like substrate by paper technology, then by coating fluid dip-coating or be sprayed on paper-like substrate, drying, can obtain reconstituted tobacco after cutting.
Solid formation is in the process making substrate, usually tobacco slurry concentration to be controlled in 10% ~ 20% high densely to pull an oar, if and slurry concentration will lose flowability more than more than 8%, cannot carry with general centrifugal pump, what employing was more at present is conveying worm.
When actual production, because middle high consistency stock network of fibers intensity is higher, slurry easily forms bulk, carried by conveying worm and entering in beating equipment process, there will be the situation that slurry enters by beating equipment, such slurry due to charging uneven, refining pulp quality is just difficult to ensure stable.
Mention in " high consistency stock fluidisation technology " in China's papermaking fifth phase in 1987 and realize the fluidised two kinds of methods of high consistency stock: one is increase flow velocity; Two is the stable high-strength shearing force fields of generation one, makes slurry under the effect of high-strength shearing force, be subject to strong disturbance and reach turbulence state.The defect that above-mentioned two kinds of methods exist is:
1, according to the research of the people such as Hemstorm, the critical flow velocity that slurry is in complete turbulent flow is u*=1.8 × C
1.4.(in formula, u*-slurry is in the critical flow velocity m/s of complete turbulent flow; C-slurry concentration, %).As seen from the above equation, when other condition is constant, the critical flow velocity of complete turbulent flow, depend on the concentration of slurry, concentration is higher, and its value is larger, in high consistency stock, network of fibers intensity is also higher, thus just needs high-strength shear stress that it just can be made to disperse, and generation shear stress high like this must have quite high flow velocity.Be can be calculated by above formula, the u*=17.1m/s as C=5%, and the slurry to C=10%, u* just needs up to 45 ~ 50m/s.Obviously, flow velocity high like this, unique method is the power and the rotating speed that increase conveying equipment, and current slurry conveying device is unapproachable.Therefore, the simple method by improving flow velocity, making high consistency stock enter turbulence state, to realize fluidisation be very difficult, is also worthless.
2, make slurry produce the method for a stable high strength shearing force field, make slurry when flow velocity is lower, network of fibers is disperseed, disturbance, form turbulent flow.This method is: produce high-strength shearing force field by the rotor of High Rotation Speed in turbulent flow generator, reaches the shear stress being enough to destroy the discrete generation turbulent flow of network of fibers, thus makes slurry realize fluidisation.This method needs increase turbulent generator equally, and will increase power to improve the rotating speed of rotor, to produce the shearing force field of high strength.
Summary of the invention
For the deficiency in prior art, object of the present invention is exactly the method for slurry fluidity when will provide high consistency pulping in a kind of improvement, and it is even that the method can realize again conveyor outlet stock dispersion under can meeting the precondition of conveying.
For achieving the above object, in conjunction with reconstructed tobacco leaf slurry feature, the method for slurry fluidity during high consistency pulping in improvement provided by the invention, it comprises the following steps:
(1) helical axis of conveying worm is split out: in the hopper of conveying worm, split out helical axis;
(2) part helix on helical axis is removed: cleaned out by the original spiral of part near the conveying worm port of export 1/5 ~ 1/3, and part helical axis being removed spiral is polished;
(3) install rake additional: install part helical axis being removed spiral additional rake, the rake height installed additional is consistent with the height of former spiral; The described rake that installs additional is the part removing spiral on helical axis, and the distance along former spiral rotating direction at interval of 3 ~ 10 centimetres evenly installs one rake additional;
(4) reinstall: will be arranged in the hopper of conveying worm by the improved helical axis adding rake of step (3) method, conveying worm runs by former method.
Preferably, in described step (2), the original spiral of part near the conveying worm port of export 1/3 is cleaned out.
Further, install rake additional in described step (3) and refer to the part removing spiral on helical axis, radially evenly install 4 ~ 8 nail rakes additional, each nail rake is evenly arranged along Axial and radial, adjacent 3 ~ 10 centimetres, two rake intervals in same nail rake, the rake between adjacent two rows not only can orientation unanimously but also can interlaced arrangement;
Further, install rake additional in described step (3) and refer to the part removing spiral on helical axis, radially evenly install 4 nail rakes additional, adjacent 5 centimetres, two rake intervals in same nail rake, the rake interlaced arrangement between adjacent two rows.
The invention has the advantages that: the method can be carried out transformation to existing equipment and just can be realized, replace to the rake of equal height by conveying worm near the spiral of the port of export, the situation of outlet slurry because of concentration height caking can be solved well, and easy to operate, process is simple, and cost is low.After the improved helical axis with part rake is come into operation, originally because the slurry of concentration height caking is dispersed into uniform material immediately after the rake of outlet, realize the object that material evenly enters lower road pulping process, and dispersion process is easy to control, and is suitable for suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the plane of common conveying worm.
Fig. 2 is the structural representation after splitting out helical axis in the embodiment of the present invention one.
Fig. 3 is the structural representation after splitting out helical axis in the embodiment of the present invention two.
In figure: drive unit 1, end bearing 2, load port 3, helical axis 4, hopper 5, intermediate bearing 6, unloading port 7, first section of bearing 8.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment one:
(1) from hopper, helical axis is split out.
(2) the original spiral of part near the conveying worm port of export 1/5 on helical axis is cleaned out, and the axle of spiral removal part is polished.
(3) install rake additional by the axle of removal spiral, rake height and former spiral are consistent.The method adding rake evenly installs additional along the distance of 3 centimetres, former hand of spiral interval or 7 centimetres or 10 centimetres, as shown in Figure 2.
(4) will be arranged in hopper by the improved spiral of (3) method and rake axle, run by former method.
Pass through field observation: even through the improved conveying worm discharging of said method, when showing the slurry pulping entering high dense mill, current stabilization is in the scope of standard value ± 6 ampere.
Embodiment two:
(1) from hopper, helical axis is split out.
(2) the original spiral of part near the conveying worm port of export 1/4 on helical axis is cleaned out, and the axle of spiral removal part is polished.
(3) install rake additional by the axle of removal spiral, rake height and former spiral are consistent.The method adding rake is installed additional in interval, even 4 directions 4 on the axle of removal spiral part or 10 centimetres, and the rake between adjacent two rows is consistent, as shown in Figure 3.
(4) will be arranged in hopper by the improved spiral of (3) method and rake axle, run by former method.
Pass through field observation: even through the improved conveying worm discharging of said method, when showing the slurry pulping entering high dense mill, current stabilization is in the scope of standard value ± 4 ampere.
Embodiment three:
(1) from hopper, helical axis is split out.
(2) the original spiral of part near the conveying worm port of export 1/3 on helical axis is cleaned out, and the axle of spiral removal part is polished.
(3) install rake additional by the axle of removal spiral, rake height and former spiral are consistent.The method adding rake is installed additional in interval, even 6 directions 3 on the axle of removal spiral part or 5 centimetres, the rake interlaced arrangement between adjacent two rows.
(4) will be arranged in hopper by the improved spiral of (3) method and rake axle, run by former method.
Pass through field observation: even through the improved conveying worm discharging of said method, when showing the slurry pulping entering high dense mill, current stabilization is in the scope of standard value ± 4 ampere.
Claims (4)
1. improve in high consistency pulping time slurry fluidity a method, it comprises the following steps:
(1) helical axis of conveying worm is split out: in the hopper of conveying worm, split out helical axis;
(2) part helix on helical axis is removed: cleaned out by the original spiral of part near the conveying worm port of export 1/5 ~ 1/3, and part helical axis being removed spiral is polished;
(3) install rake additional: install part helical axis being removed spiral additional rake, the rake height installed additional is consistent with the height of former spiral; The described rake that installs additional is the part removing spiral on helical axis, and the distance along former spiral rotating direction at interval of 3 ~ 10 centimetres evenly installs one rake additional;
(4) reinstall: will be arranged in the hopper of conveying worm by the improved helical axis adding rake of step (3) method, conveying worm runs by former method.
2. the method for slurry fluidity during high consistency pulping in improvement according to claim 1, is characterized in that: cleaned out by the original spiral of part near the conveying worm port of export 1/3 in described step (2).
3. the method for slurry fluidity during high consistency pulping in improvement according to claim 1 and 2, it is characterized in that: install rake additional in described step (3) and refer to the part removing spiral on helical axis, radially evenly install 4 ~ 8 nail rakes additional, each nail rake is evenly arranged along the radial direction of axle, adjacent 3 ~ 10 centimetres, two rake intervals in same nail rake, the rake between adjacent two rows not only can orientation unanimously but also can interlaced arrangement.
4. the method for slurry fluidity during high consistency pulping in improvement according to claim 3, it is characterized in that: install rake additional in described step (3) and refer to the part removing spiral on helical axis, radially evenly install 4 nail rakes additional, adjacent 5 centimetres, two rake intervals in same nail rake, the rake interlaced arrangement between adjacent two rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258997.5A CN104886758A (en) | 2015-05-20 | 2015-05-20 | Pulp mobility improving method during medium and high concentration pulping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258997.5A CN104886758A (en) | 2015-05-20 | 2015-05-20 | Pulp mobility improving method during medium and high concentration pulping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104886758A true CN104886758A (en) | 2015-09-09 |
Family
ID=54020064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510258997.5A Pending CN104886758A (en) | 2015-05-20 | 2015-05-20 | Pulp mobility improving method during medium and high concentration pulping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104886758A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984000741A1 (en) * | 1982-08-09 | 1984-03-01 | Berggren Torsten L | A method and apparatus for transporting a viscous or non-flowing, liquid-containing pulp |
| US4531892A (en) * | 1983-03-14 | 1985-07-30 | Sunds Defibrator Aktiebolag | Apparatus for pumping of pulp |
| CN101397762A (en) * | 2008-10-13 | 2009-04-01 | 张泽光 | Pulp manufacturing technology and material preprocessor |
| CN201338848Y (en) * | 2008-12-17 | 2009-11-04 | 牛继星 | Helical conveyor for mixing and conveying slurry addition materials |
| CN201914683U (en) * | 2010-12-22 | 2011-08-03 | 山东省鲁洲食品集团有限公司 | Screw conveyor for mixing and delivering pasty material |
| CN203452345U (en) * | 2013-08-07 | 2014-02-26 | 新乡市北海砂浆成套设备有限公司 | Sizing agent site mixing conveyor |
| CN203601931U (en) * | 2013-12-12 | 2014-05-21 | 江苏正昌粮机股份有限公司 | Novel double-shaft refining machine |
-
2015
- 2015-05-20 CN CN201510258997.5A patent/CN104886758A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984000741A1 (en) * | 1982-08-09 | 1984-03-01 | Berggren Torsten L | A method and apparatus for transporting a viscous or non-flowing, liquid-containing pulp |
| US4531892A (en) * | 1983-03-14 | 1985-07-30 | Sunds Defibrator Aktiebolag | Apparatus for pumping of pulp |
| CN101397762A (en) * | 2008-10-13 | 2009-04-01 | 张泽光 | Pulp manufacturing technology and material preprocessor |
| CN201338848Y (en) * | 2008-12-17 | 2009-11-04 | 牛继星 | Helical conveyor for mixing and conveying slurry addition materials |
| CN201914683U (en) * | 2010-12-22 | 2011-08-03 | 山东省鲁洲食品集团有限公司 | Screw conveyor for mixing and delivering pasty material |
| CN203452345U (en) * | 2013-08-07 | 2014-02-26 | 新乡市北海砂浆成套设备有限公司 | Sizing agent site mixing conveyor |
| CN203601931U (en) * | 2013-12-12 | 2014-05-21 | 江苏正昌粮机股份有限公司 | Novel double-shaft refining machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6712992B2 (en) | Method for producing nanofibril cellulose | |
| CN209397422U (en) | A kind of regenerated papermaking recovery processing regenerating unit | |
| CN204502987U (en) | A kind of granulator | |
| CN204952747U (en) | Wadding machine is separated to dense media powder condensation product | |
| EP2898139A1 (en) | Soak vessels and methods for impregnating biomass with liquid | |
| WO2012029182A1 (en) | Apparatus and method for biomass decomposition, and system for producing sugar solution using biomass raw material | |
| CA2783819A1 (en) | Dewatering oil sand tailings | |
| CN103251125A (en) | Method of manufacturing reconstituted tobacco through high-quality functional paper-making process | |
| JP2003517825A (en) | Method for continuously separating plant biomass into a fluid phase and a phase containing a solid with pulp-like viscosity | |
| CN107875919A (en) | A kind of stalk paper grade (stock) thickens tank | |
| CN207861908U (en) | A kind of ultra-fine coating Production of Light Calcium Carbonate system | |
| CN204705139U (en) | A kind of down products drying unit | |
| CN209052565U (en) | A kind of dry and wet sludge mixing arrangement | |
| CN102946743A (en) | Dehydrated pulp slurry and method of making | |
| CN104886758A (en) | Pulp mobility improving method during medium and high concentration pulping | |
| CN106987290B (en) | A method of improving pipeline transportation water-coal-slurry end product concentration | |
| CN102907756A (en) | Tobacco cut stem reconstructing production system | |
| CN204746452U (en) | Microwave spiral stirring ball mill | |
| CN109423905A (en) | A kind of paper pulp production line system of no discharging of waste liquid | |
| CA2812275A1 (en) | Systems and methods for separating mine tailings from water-absorbing polymers and regenerating the separated water-absorbing polymers | |
| CN207357372U (en) | A kind of flat full-automatic bottom discharge centrifugal machine | |
| Dong | Analysis of Factors Affecting the Dehydration Effect of Centrifugal Dehydrator | |
| CN106368027A (en) | Method for preparing nanocellulose through oxidative degradation of ammonium persulfate | |
| CN103386374B (en) | Rotational flow dehydration and medium removing machine | |
| CN207109447U (en) | The preparation system of sludge environment-friendly paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150909 |