CN102599638A - Low-retention monolayer net papermaking process of reconstituted tobaccos by papermaking method and equipment thereof - Google Patents
Low-retention monolayer net papermaking process of reconstituted tobaccos by papermaking method and equipment thereof Download PDFInfo
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- CN102599638A CN102599638A CN2012100653441A CN201210065344A CN102599638A CN 102599638 A CN102599638 A CN 102599638A CN 2012100653441 A CN2012100653441 A CN 2012100653441A CN 201210065344 A CN201210065344 A CN 201210065344A CN 102599638 A CN102599638 A CN 102599638A
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Abstract
The invention discloses a low-retention monolayer net papermaking process of reconstituted tobaccos by a papermaking-method and equipment thereof. The process comprises the following steps: preparing a size, feeding the size, top wire forming, separating enriched water and recovering, wherein the step of top wire forming is as follows: a molded net with larger sieve mesh is selected, so as to lead small substances in the size to flow out from the molded net; and wood fiber additionally added with the fiber size can stay on the molded net to form a barrier layer. For realizing the above process, the invention also comprises a device for realizing the process. The device comprises a set of size preparing and approach flow system and a backflow device, wherein the backflow device comprises a recovery tank, a filter screen and a recovery pipe; the recovery tank is positioned below the molded net; the recovery tank is provided with a recovery pipe which is used for being communicated with a white water tank; the molded net is a monolayer net; and the sieve mesh of the monolayer net is 50-100 meshes. The process provided by the invention has the advantages of improving the use ratio of the tobacco size, avoiding jar sticking phenomenon, and saving energy resources and the like.
Description
Technical field
The present invention relates to a kind of low retention individual layer net papermaking process of papermaking-method reconstituted tobaccos and equipment thereof that can improve tobacco leaf papermaking product yield.
Background technology
Numerous domestic papermaking-method reconstituted tobaccos manufacturer all adopts at present: with plus fiber (main wood pulp cellulose; Generally account for the 5-15% of tobacco material) (producer's mixed pulp is arranged also with offal and the independent slurrying of broken blade (offal and broken blade are tobacco material); Promptly elder generation mixes back slurrying in proportion) mix in proportion again and join back formation: reconstructed tobacco leaf slurry, the moulding of manufacturing paper with pulp of surfing the Net.Because the Nicotiana herbaceous plant, self fiber content is low, and tiny composition is many after the slurrying, is difficult for keeping at wet end.The loss that in the process of manufacturing paper with pulp, also adds wet end adjuvant minimizing fiber fines, but the number of dropouts of the process of manufacturing paper with pulp is still bigger, the enriched water concentration of emission reaches about 0.3%, therefore causes raw material to have high input, and output is low, can only reach about 70% product yield.Because the tobacco material contains compositions such as starch, protein, pectin, be prone to be adhered to the surface of drying cylinder during oven dry simultaneously, have to adopt the oven dry surface temperature of reduction, avoid the sticking phenomenon of doing to take place, influence the dewatering efficiency of vat.
Summary of the invention
The object of the present invention is to provide and a kind ofly can either improve tobacco leaf papermaking product yield, in the time of can avoiding drying again, the substrate of reconstituted tobacco be adhered to the surface of drying cylinder, reduces the low retention individual layer net papermaking process of papermaking-method reconstituted tobaccos and the equipment thereof of sticking cylinder phenomenon.
The objective of the invention is to realize like this: it may further comprise the steps, 1 configuration slurry; By required proportional arrangement slurry; 2, send slurry: the tobacco slurry that configures is sent into head box with plus fiber slurry mixed slurry; Net forming on 3: the slurry in the head box is sent into forming net and is carried out moulding; It is characterized in that: it comprises that also 4 enriched waters separate and recovery; Described enriched water separates and is recovered as: collect the enriched water that flows down from forming net; Simultaneously the enriched water of collecting is filtered through screen pack, the tobacco slurry solid matter that filtration is obtained is sent back to and is destroyed the forebay, and the enriched water after the filtration is back to back flow water pump; The forming step of wherein surfing the Net is: select for use forming net than large mesh to make that subtitle substance flows out from forming net in the slurry, and the wood fibre of plus fiber slurry can rest on and forms the barrier layer on the forming net.
In order to realize above-mentioned technology, the present invention also comprises the device of realizing this technology, it comprise 1 the cover join the slurry with the net before approach system; Above system respectively by connect successively destroy forebay 1, stock pump 2, stuff box 3, back flow water pump 4, towards pump slurry 5, slurry-stablizing case 6; Slurry-stablizing case connects a head box 7, and head box is connected with forming net 8, it is characterized in that: it also comprises reflux; Described reflux comprises accumulator tank; Screen pack and recovery channel, described accumulator tank is positioned at the below of forming net, on accumulator tank, is provided with the recovery channel that is used for back flow water pump UNICOM; The net of forming net is the individual layer net, and the mesh of this individual layer net is: the 50-100 order.
The invention has the advantages that: 1 quickens the loss of fiber fines in the tobacco leaf slurry; Make slurry on the net when individual layer is manufactured paper with pulp; Can make individual layer form one deck on the net is master's barrier layer with the wood pulp slurry, and the tobacco slurry more than this layer just is difficult to run off, and destroies the forebay to getting back to after filtering with the fiber fines under the enriched water loss; The utilization rate of the tobacco slurry of raising is manufactured paper with pulp in online once more in manufacturing paper with pulp flow process next time.2, because through behind the individual layer net; It is master's barrier layer with the wood pulp slurry that tobacco slurry forms the bottom, also is to be that master's barrier layer contacts with drying cylinder with the wood pulp slurry when toasting, and has just avoided comparatively speaking that the tobacco material contains compositions such as starch, protein, pectin in the original mixed pulp; Be prone to be adhered to the surface of drying cylinder during oven dry; Have to adopt the oven dry surface temperature of reduction, avoid sticking cylinder phenomenon to take place, the situation that influences the dewatering efficiency of vat takes place.3 energy savings can cut down the consumption of energy, and sticking cylinder phenomenon reduces when being embodied in oven dry, and the cylinder surface temperature can improve, and paper machine speed can promote 10-20%, and the energy consumption of manufacturing paper with pulp can reduce about 5-10%.Aspect the product yield, see mainly and filter the selection that enriched water reclaims the mesh size of fiber fines that mesh is selected little; Can reclaim more fiber fines; Thereby improve the product yield, if select 200 purpose screen packs for use, the product yield can promote 10%; If select 120 purpose nets for use, the product yield is basic with original identical.
Description of drawings
Fig. 1 is the upper surface picture of traditional papermaking process product,
Fig. 2 is the bottom surface picture of traditional papermaking process product,
Fig. 3 is the upper surface picture of papermaking process product of the present invention,
Fig. 4 is the bottom surface picture of papermaking process product of the present invention,
Fig. 5 is that slurry forms sketch map at the moulding wire side,
Fig. 6 is a structural representation of the present invention.
Label declaration
1 copies forebay, 2 stock pumps, 3 stuff boxs, 4 back flow water pumps, 5 towards pump slurry, 6 slurry-stablizing cases, 7 head boxs, 8 forming nets, 9 accumulator tanks, 10 screen packs, 11 recovery channels.
The specific embodiment
As shown in Figure 1: technology of the present invention is following: it mainly comprises: 1 configuration slurry; By required proportional arrangement slurry; 2, send slurry: the tobacco slurry that configures is sent into head box with the plus fiber slurry; Net forming on 3: the slurry in the head box is sent into forming net and is carried out moulding; It is characterized in that: it also comprises 4, enriched water separates and recovery; Described enriched water separates and is recovered as: collect the enriched water that flows down from forming net; Simultaneously the enriched water of collecting is filtered through screen pack, send the tobacco slurry solid matter that filtration obtains back to the pond of manufacturing paper with pulp, the enriched water after the filtration is back to back flow water pump; The forming step of wherein surfing the Net is: select for use forming net than large mesh to make that subtitle substance flows out from forming net in the slurry, and the wood fibre of plus fiber slurry can rest on and forms the barrier layer on the forming net.Be that with the place that technology was different in the past the present invention is for through the large aperture forming net is set, let better subtitle substance quickens to run off in the tobacco slurry; Under making that wood fibre can be precipitated to; Form the barrier layer, avoid remaining tobacco slurry to run off, on the other hand; The more tobacco slurry subtitle substance that runs off reclaims through retracting device, avoids waste.
The configuration slurry; To mix and add entry configuration mixed slurry after wood pulp cellulose and tobacco, offal and broken blade raw material mix, wherein wood pulp cellulose generally accounts for the 5-10% of tobacco material gross weight.Because wooden slurry price is more expensive, excessive if wood pulp cellulose accounts for the proportion of total amount, then production cost is too high, otherwise, then can't reach barriering effect preferably.
Send slurry: concrete steps are: the slurry input that configures is destroyed the forebay; Send into stuff box after mixing through stock pump, the part slurry in the stuff box gets into back flow water pump, and another part backflow of slurry in the stuff box is to destroying the forebay; Back flow water pump is through getting into slurry-stablizing case towards the pump slurry; Part slurry in the slurry-stablizing case flows to head box, and another part backflow of slurry in the slurry-stablizing case is to back flow water pump, and another part backflow of slurry in the head box is to back flow water pump; Enriched water off the net through obtaining after the forming net filtration is back to back flow water pump.This technology is existing common technological means.
The number of plies that is used for the forming net of moulding is that individual layer and order are counted the 50-100 order.The purpose of forming net individual layer is that tiny composition better runs off in the tobacco slurry in order to let; And order to count the 50-100 order be that tiny composition better flows away in the tobacco slurry in order to let equally; Avoid the loss of wooden slurry simultaneously, make wooden slurry can form the barrier layer.
The requirement of the screen pack that is used for enriched water is filtered.The purpose of screen pack is in order to separate composition tiny in enriched water and the tobacco slurry, after the two is separated, to drop into corresponding certain applications respectively.
As shown in Figure 6: it comprises approach system before the 1 cover net, this system respectively by connect successively destroy forebay (1), stock pump (2), stuff box (3), back flow water pump (4), towards pump slurry (5), slurry-stablizing case (6), slurry-stablizing case connects a head box (7); Head box is connected with forming net (8); It also comprises reflux, and described reflux comprises accumulator tank, screen pack and recovery channel; Described accumulator tank is positioned at the below of forming net, on accumulator tank, is provided with the recovery channel that is used for back flow water pump UNICOM; The net of forming net is the individual layer net, and the mesh of this individual layer net is: except other technology and step and original technological identical of the reflux of extra increase and improved forming net.
The parameter of described screen pack is: the 120-200 order.Thereby improve the product yield, if select 200 purpose screen packs for use, the product yield can promote 10%, if select 120 purpose nets for use, the product yield is basic with original identical.
Operation principle of the present invention is following:
Shown in Fig. 1-4: Fig. 1～2 are the formed product of prior art, and wherein white portion is a wood fibre, and other are the tobacco material.The upper and lower surface of product can find out very that tobacco and wood fibre mix obviously, between the ratio of collocation comparatively even, the wood pulp cellulose of table is slightly more below; Comparatively speaking, in the process of oven dry, possibly be stained with more tobacco impurity on the drying plant; Fig. 3～4th, the product of production of the present invention can be found out, the whiteness of lower surface (wood fibre) content showed increased; Basically occupied the surface of product; When such semi-finished product arrive on the drying plant,, just be not easy to take place to be stained with on the drying plant situation of tobacco impurity because the surface all is a wood fibre.
As shown in Figure 5: the representative of strip adds wood pulp cellulose among Fig. 5, the expression baccy fiber of point-like.Explain: slurry is in that proal while superfluous water flows out under the forming net with forming net on the forming net; Together flow down less than Yi Suishui such as the fiber fines of moulding size of mesh and particles, and the wood pulp cellulose longer dimension, the overwhelming majority can be with under the current; Just formed bottom one deck wood pulp cellulose content than multilayer in the forming net dehydration; In case when the amount of wood pulp fiber layer was abundant, the fiber fines of tobacco slurry etc. can't pass through wood pulp fiber layer, and the moulding of manufacturing paper with pulp.
Claims (7)
1. papermaking-method reconstituted tobaccos hangs down retention individual layer net papermaking process, and it may further comprise the steps, 1 configuration slurry: by required proportional arrangement slurry; 2, send slurry: the tobacco slurry that configures is sent into head box with the plus fiber slurry; Net forming on 3: the slurry in the head box is sent into forming net and is carried out moulding; It is characterized in that: it comprises that also 4 enriched waters separate and recovery; Described enriched water separates with recycling step: collect the enriched water that flows down from forming net; Simultaneously the enriched water of collecting is filtered through screen pack, send the tobacco slurry solid that filtration obtains back to the pond of manufacturing paper with pulp, the enriched water after the filtration is back to back flow water pump; The forming step of wherein surfing the Net is: select for use forming net than large mesh to make that subtitle substance flows out from forming net in the slurry, and the wood fibre of plus fiber slurry can rest on and forms the barrier layer on the forming net.
2. papermaking-method reconstituted tobaccos according to claim 1 hangs down retention individual layer net papermaking process, it is characterized in that: the configuration slurry; To mix and add entry preparation mixed slurry after the broken blade raw material of wood pulp cellulose and offal and tobacco mixes, wherein wood pulp cellulose generally accounts for the 5-15% of tobacco material gross weight.
3. papermaking-method reconstituted tobaccos according to claim 1 hangs down retention individual layer net papermaking process; It is characterized in that: send slurry: concrete steps are: the slurry input that configures is destroyed the forebay; Send into stuff box after mixing through stock pump, the part slurry in the stuff box gets into back flow water pump, and another part backflow of slurry in the stuff box is to destroying the forebay; Back flow water pump is through getting into slurry-stablizing case towards the pump slurry; Part slurry in the slurry-stablizing case flows to head box, and another part backflow of slurry in the slurry-stablizing case is to back flow water pump, and another part backflow of slurry in the head box is to back flow water pump; After filtering once more, the enriched water off the net that obtains after filtering through forming net is back to back flow water pump.
4. papermaking-method reconstituted tobaccos according to claim 1 hangs down retention individual layer net papermaking process, it is characterized in that: the number of plies that is used for the forming net of moulding is that individual layer and specification are that order is counted the 50-100 order.
5. papermaking-method reconstituted tobaccos according to claim 1 hangs down retention individual layer net papermaking process, it is characterized in that: the specification of the screen pack that is used for enriched water is filtered is that order is counted the 120-200 order.
6. the low retention individual layer net of the papermaking-method reconstituted tobaccos device of manufacturing paper with pulp; It comprises approach system before the 1 cover net, respectively by connect successively destroy forebay (1), stock pump (2), stuff box (3), back flow water pump (4), towards pump slurry (5), slurry-stablizing case (6), slurry-stablizing case connects a head box (7); Head box is connected with forming net (8); It is characterized in that: it also comprises reflux, and described reflux comprises accumulator tank (9), screen pack (10) and recovery channel (11); Described accumulator tank is positioned at the below of forming net, on accumulator tank, is provided with the recovery channel that is used for back flow water pump UNICOM; The net of forming net is the individual layer net, and the mesh of this individual layer net is: the 50-100 order.
7. the low retention individual layer net of the papermaking-method reconstituted tobaccos according to claim 6 device of manufacturing paper with pulp is characterized in that the order number of described screen pack is the 120-200 order.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100653441A CN102599638A (en) | 2012-01-11 | 2012-01-11 | Low-retention monolayer net papermaking process of reconstituted tobaccos by papermaking method and equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100653441A CN102599638A (en) | 2012-01-11 | 2012-01-11 | Low-retention monolayer net papermaking process of reconstituted tobaccos by papermaking method and equipment thereof |
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| CN102599638A true CN102599638A (en) | 2012-07-25 |
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| CN2012100653441A Pending CN102599638A (en) | 2012-01-11 | 2012-01-11 | Low-retention monolayer net papermaking process of reconstituted tobaccos by papermaking method and equipment thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104432471A (en) * | 2014-12-29 | 2015-03-25 | 安徽中烟再造烟叶科技有限责任公司 | Recycling method for manufacturing white water of reconstituted tobacco |
| CN106758472A (en) * | 2017-02-28 | 2017-05-31 | 福建金闽再造烟叶发展有限公司 | Copy preceding stock tank online concentration control apparatus and streaming equipment |
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| US4154648A (en) * | 1974-03-08 | 1979-05-15 | Nordiska Maskinfilt Aktiebolaget | Method for separating a paper web from a forming fabric in a paper-making machine |
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| CN101805077A (en) * | 2010-04-29 | 2010-08-18 | 广东省金叶烟草薄片技术开发有限公司 | Treating method of paper-making water recycling use in the production process of reconstituted tobacco |
| CN201774947U (en) * | 2010-02-09 | 2011-03-30 | 湖北中烟工业有限责任公司 | On-line detection control device for net part single-pass retention of papermaking method tobacco sheets |
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- 2012-01-11 CN CN2012100653441A patent/CN102599638A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4154648A (en) * | 1974-03-08 | 1979-05-15 | Nordiska Maskinfilt Aktiebolaget | Method for separating a paper web from a forming fabric in a paper-making machine |
| CN1163863A (en) * | 1996-04-30 | 1997-11-05 | 王振声 | Technique for recovering, treating and closed-loop circulation of papermaking waste water |
| JP2008075186A (en) * | 2006-09-19 | 2008-04-03 | Oji Paper Co Ltd | Method for circulating white water |
| CN201495451U (en) * | 2009-08-06 | 2010-06-02 | 福建省晋江优兰发纸业有限公司 | Paper-making medium wastewater processing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104432471A (en) * | 2014-12-29 | 2015-03-25 | 安徽中烟再造烟叶科技有限责任公司 | Recycling method for manufacturing white water of reconstituted tobacco |
| CN104432471B (en) * | 2014-12-29 | 2016-03-02 | 安徽中烟再造烟叶科技有限责任公司 | Reconstituted tobacco is manufactured paper with pulp the reuse method of plain boiled water |
| CN106758472A (en) * | 2017-02-28 | 2017-05-31 | 福建金闽再造烟叶发展有限公司 | Copy preceding stock tank online concentration control apparatus and streaming equipment |
| CN106758472B (en) * | 2017-02-28 | 2019-06-04 | 福建金闽再造烟叶发展有限公司 | Stock tank online concentration control apparatus and streaming equipment before copying |
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Application publication date: 20120725 |