CN102688613A - Extract deep purification and edulcoration process in manufacturing technology of papermaking tobacco sheets - Google Patents

Abstract

The invention relates to an extract deep purification and edulcoration process in the manufacturing technology of papermaking tobacco sheets. The process comprises the following steps: a, tobacco waste including tobacco stems, tobacco sticks and tobacco powder is fully soaked in hot water and then extracted; b, the mixture of tobacco waste and water is fed into a squeezer and then squeezed for solid-liquid separation, and the liquid part is extracted crudely and is screened through a linear vibrating screen for solid-liquid separation; c, the liquid separated through the linear vibrating screen enters a filter aid process module to be processed through deep macromolecule flocculation, wherein an edible flocculating agent is adopted, the addition proportion is 0.1 to 0.8%, and the flocculation time is 5 to 50 minutes; liquid processed through deep macromolecule flocculation enters a primary horizontal spiral discharge settling centrifuge to be separated; and e, the liquid separated by the centrifuge in step d is pasteurized at the temperature of 60 to 70 DEG C for edulcoration, and then enters a concentration system to be concentrated. The process can effectively remove macromolecule particles, improves the concentration efficiency and ensures the quality of concentrate.

Description

The deep purifying impurity removal process of extract in the tobacco sheets by paper making method production process

Technical field

The present invention relates to the middle process that tobacco sheets by paper making method is produced, the technology of the degree of depth isolation of purified removal of impurities of tobacco material in especially a kind of tobacco sheets by paper making method production technology (tobacco wastes such as offal, offal, smoked sheet, fume-bar) extraction back extract.

Background technology

Tobacco sheets by paper making method is a raw material with tobacco wastes such as the offal that in the cigarette process, produces, offal, smoked sheet, fume-bars; Baccy fiber forms substrate through the principle of similar papermaking; Tobacco extraction liquid is through purifying, concentrate, preparing; Process through applying glue is applied on the substrate, and reassembling into reconstituted tobacco behind the oven dry fragment is tobacco sheets by paper making method.Tobacco sheets by paper making method uses in the cigarette composition as a kind of raw material, can effectively reduce the cigarette unit consumption, practice thrift the cigarette cost; Can obviously reduce the releasing content of coke tar of cigarette, reduce the cigarette hazard index; Simultaneously, Tian Yunong also etc. is played positive social effect.

In the tobacco sheets by paper making method production process, the Separation of Solid and Liquid that realizes tobacco extraction liquid and baccy fiber be one must through process.Tobacco sheets by paper making method has been continued to use the initial gross separation of the press master realization solid-liquid of paper industry basically, also has at mechanical subsidence styles such as shove following adopted filter screen, vacuum filtration, centrifugal sedimentations and comes further to separate small solid suspension in the last extract of stalk.But these mechanical subsidence styles all have the equivalent diameter requirement to the small solid shape suspension of correspondence, like the equivalent diameter >=3 μ ms of horizontal screw centrifuge to the solid phase particles requirement.In tobacco extraction liquid, use very fine and closely woven screen cloth, 500-2000 order for example, the fine particle that can effectively dam is easy to by particles clog but screen cloth is meticulous, often needs through the manual intervention flushing and changes screen cloth, be difficult to realize the big production of industry of serialization.In actual production; Owing to need take into account centrifugal speed and handle extract output; The extract processing time is generally very short, and the solid phase particles of effectively not removing still occupies significant proportion, and the diameter of solid phase particles is more little; Machinery sedimentation difficulty is more difficult, has said nothing of macromolecular components that diameter is littler.

Domestic tobacco sheets by paper making method raw material identity is relatively poor; The source is complicated; Macromolecular components such as its protein that is rich in, starch, pectin, cellulose, hemicellulose, lignin are present in the extract through extraction and shove operation in a large number, in follow-up long high temperature enrichment process, are easy to make these composition gelatinization and coking; Influence the quality of concentrate, be that the assorted gas of sheet product is heavy, excitant is big and mouthfeel discomfort etc. inhaled a factor of flavor defective.In addition, Separation of Solid and Liquid prepares in the extract process, and some tiny solid particles such as dust, tiny slurry etc. unavoidably get into or remain in the extract, and these fine particles affect the quality of concentrate to a certain extent.Too much slag content or insoluble matter in the liquid phase with the deposition that causes slag in concentration tank, causes more thermal source waste when concentrating.For example: film concentrates the penetrating amount decline that can cause film and shortens service life, and vacuum concentrates and can cause heating tubulation congestion affects heat exchanger effectiveness gradually.The quality of concentrate and the quality of sheet product have the relation of coming down in a continuous line, and therefore, the macromolecular components of extract is carried out abundant removal of impurities handle and to improving the concentrate quality and then improving the sheet product quality significance is arranged.

Summary of the invention

The present invention is directed to the defective that prior art exists; The deep purifying impurity removal process of extract in a kind of production process of tobacco sheets by paper making method is provided; When tobacco extraction liquid is realized thorough Separation of Solid and Liquid; Optionally the degree of depth is removed the impurity component that is unfavorable for thin slice production and quality, realizes reorganization of extract composition and removal of impurities are improved extract, concentrate and sheet product quality.

For this reason; The present invention takes following technical scheme: the deep purifying impurity removal process of extract in the production process of tobacco sheets by paper making method is characterized in that processing step is following: a, tobacco waste is comprised that offal, cigarette are signed, offal extracts through behind the abundant water infiltration in hot water; B, the mixture of each tobacco waste and water is got into the press master shove respectively, carry out Separation of Solid and Liquid, the crude extract body portion is crossed the straight line sieve that shakes and is carried out Separation of Solid and Liquid; C, the straight line sieve liquid separated of shaking gets into and to help the filtering technology module to carry out the big molecule flocculation treatment of the degree of depth, and the flocculant of employing is the food grade flocculant, and adding proportion is 0.1-0.8%, and flocculation time was at 5-50 minutes; Liquid after d, the big molecule flocculation treatment of the degree of depth gets into a horizontal spiral discharge sedimentation centrifuge and separates; E, the liquid after the centrifugation of d step get into concentration systems and concentrate through 60-70 degrees centigrade of pasteurize removal of impurities.

Extract solid phase particles in mechanical sedimentation separation process is big more, and mechanical setting condition is just gentleer, and settling efficiency is high more.In extract, add one or more effective flocculants, can make the solid phase particles diameter become big, and then improve mechanical settling efficiency greatly, effectively reduce and separate number of times; Flocculant flocculates into the very big molecule micelle of diameter because of it can play bridging action between the soluble large molecule composition, and macromolecular components also can be removed through mechanical subsidence style, and this does not add flocculant and is difficult to accomplish.The present invention proposes when tobacco extraction liquid is realized completely Separation of Solid and Liquid; The selectivity degree of depth is removed macromolecular components such as the protein that is unfavorable for thin slice production and quality, starch, pectin, cellulose, hemicellulose, lignin; Realization improves the technology of the deep purifying removal of impurities of extract, concentrate and sheet product quality to the composition reorganization and the removal of impurities of extract.Help the filtering technology module to control operation automatically, form by flocculant storage tank, tobacco extraction liquid process tank, the automatic liquid feeding of flocculant system.Handle through 60-70 degrees centigrade of pasteurizes in the E step; Can effectively prevent growing of bacterium; Suppress cotton-shaped, the not generation once more of bacteriolyze mud of mud shape of production line, reduce effective tobacco component such as liquid internal amino acid, reduced sugar to the transfer of thalline and the generation of impurity metabolite; Simultaneously, can increase the degree of purity that into concentrates preceding liquid.Extraction liquids slag content can adapt to film and concentrate and the concentrated concentration technology that waits of vacuum below 0.01%.

As preferably; In the c step; The food grade flocculant that adopts can be the chitose that animal is extracted from edible natural Haihe River; Comprising the chemical product after the acidylate, carboxylated, etherificate, N-alkylation, esterification of chitin, shitosan, shitosan, also can be the marine algae extract that from the plant of edible natural Haihe River, extracts, and comprises agar, sodium alginate, Thallus Laminariae (Thallus Eckloniae) extract.

As preferably, described food grade flocculant is the compound of shitosan and seaweed extracted liquor, wherein liquid shitosan 50-80%, liquid seaweed extract 20-50%.Liquid shitosan preparation: shitosan food grade, molecular weight be the process expanding treatment more than 200,000.Shitosan can be used carboxylic acid (in formic acid, acetate, the lactic acid any) dissolving of 0.2-2% concentration.For example 1% shitosan acetic acid solution is that 1 gram shitosan is dissolved in 100 milliliter 1% the acetic acid solution; The preparation of seaweed extract liquid: 5-20 times of water are put in the marine alga chopping, under 60 degree temperature, stirred 2 hours, it is for use to get extract.In the c step, flocculant consumption 0.1-0.8%, the extract temperature is 15-55 degree, the processing time is 5-50 minute.

As preferably, offal soaked 20--40 minute in the hot water of 50-55 degree in a step, and offal, cigarette are signed raw material and in the hot water of 55-60 degree, soaked 40--60 minute.This temperature can suppress to extract the line breed bacteria, and this time can guarantee that raw material is fully soaked into.

As preferably; In the d step, the liquid after the big molecule flocculation treatment of the degree of depth gets into the spiral shell discharging sedimentation centrifuge that crouches through the stable flow quantity of controlling out of flow controller; This centrifuge can be adverse current type, parallel flow type or three divergence types, and the maximum separation factor reaches 4000.

As preferably, be introduced into the fine particle that disk centrifuge further separates flocculation through a horizontal spiral discharge sedimentation centrifuge liquid separated in the steps d, the liquid after separating through butterfly gets into the e step again and accomplishes sterilization and concentration technology.Liquid separates as getting into a horizontal spiral discharge sedimentation centrifuge, and the liquid dregginess is below 0.06%; As get into disk centrifuge once more and further separate, liquid slag content is below 0.004%.This disk centrifuge is from rotating ring valve Slagoff type disk centrifuge, and partial discharge and whole deslagging functions are arranged, can the continuous purification suspension liquid.

As preferably; In the b step; Press master is selected double helix shove or single-screw squeezing shove for use, and solid slag partly gets into down one press master or directly carries out defibrination and handle after the Separation of Solid and Liquid, and the slag that shakes after the sieve Separation of Solid and Liquid through straight line gets into following one press master or direct defibrination processing.The material mass dryness fraction can reach 35-38% behind the shove, and offal line crude extract body slag content is 0.8-3%, and offal line crude extract body slag content is 0.5-2%.Straight line shakes the sieve screen cloth between 20-80 orders, and the tobacco extraction liquid body slag content of crossing the sieve that shakes is 0.3-1.5%, and the sieve screen bottom of shaking lining band hole steel plate is strengthened, and can realize continuous production.

As preferably, in the d step, the solid slag after horizontal spiral discharge sedimentation centrifuge separates can advance the papermaking of defibrination operation also can further be handled the back and when coating, use.

The present invention suppresses technology and deep purifying impurity removal process through bacterium; Can utilize conventional separator at the extraction line; Realize accurately solid and liquid impurities separation efficiently and directed big molecular separation, separating step is: the directed high efficiency separation of utilizing shake together sieve, the one centrifugal realization tobacco extraction liquid of horizontal spiral body; Perhaps utilize shake together sieve, one centrifugal directed high efficiency separation of horizontal spiral with the centrifugal realization tobacco extraction liquid of video disc body.In the big molecular separation step of orientation, adopting flocculant to play builds bridge and charge effect; The protein that will in tobacco extraction liquid, be rich in, starch, pectin, cellulose, hemicellulose, lignin etc. are unfavorable for that the macromolecular components that cigarette is smoked panel test flocculates into the very big molecule micelle of diameter, and remove through mechanical subsidence style separation.Avoided in enrichment process for a long time that high temperature concentrates, caused influence after the gelatinization of this type macromolecular components and the coking quality of concentrate, overcome effectively that the assorted gas of sheet product is heavy, excitant is big and suction such as the mouthfeel discomfort defective of distinguishing the flavor of.

The present invention has the following advantages:

1. through in extract, adding one or more effective flocculants, can make extract solid phase particles diameter become big, and then improve mechanical settling efficiency greatly, effectively reduce machinery centrifugation number of times; Simultaneously, also can significantly improve thickening efficiency and concentrate cost with practicing thrift.

2. the tobacco extraction liquid body behind the deep purifying is before concentrating; Handle through quick sterilization; Can effectively prevent growing of bacterium, suppress cotton-shaped, the not generation once more of bacteriolyze mud of mud shape of production line, reduce effective tobacco component such as liquid internal amino acid, reduced sugar to the transfer of thalline and the generation of impurity metabolite; Simultaneously, can increase the degree of purity that into concentrates preceding liquid.

3. improve the suction quality of reconstituted tobacoo, improved the utilization rate of thin slice in cigarette composition; Part has solved that the assorted gas of sheet product is heavy, excitant is big and mouthfeel discomfort etc. is inhaled the flavor defective; For the cigarette industry lowering harm and decreasing coking provides the slice raw material of high-quality, reduced the cigarette cost.

Description of drawings

Fig. 1 is the process chart of embodiment of the invention 1-6

Fig. 2 is the alternative process chart of the present invention

Fig. 3 is another process chart of the present invention.

The specific embodiment

Through embodiment, do further bright specifically below to technical scheme of the present invention.

Embodiment 1:

Referring to accompanying drawing 1; The hot-water soak that 1000 kilograms of offals and 1000 kilograms of offals are spent with 55 degree and 50 respectively 40 minutes; Fully stir the direct blowing of infiltration back offal smoked sheet respectively and get into the single-screw squeezer; The offal cigarette is signed through separating fine back and is got into the press master shove by conveyor screw, obtains baccy fiber solid and tobacco extraction liquid 1 respectively.Solid over dry slag content offal line is 33.8%, and the offal line is 37.2% (spending the detection that dries to constant weight with Oven Method 105), and 1.2%, solid slag is done base in blocks after mixing to liquid slag content offal line at 2.0% offal line.Respectively with offal liquid 1 and offal liquid 1 through the straight line sieve that shakes, must offal liquid 2 (dregginess 1.0%) and offal liquid 2 (dregginess 0. 8%).Respectively liquid 2 is got into deeply purifying and removing and live together the science and engineering section, adopt liquid shitosan, adding proportion 0.2%, the flocculant processing time is 20 minutes.Help the filtering technology module to control operation automatically.Offal offal 2 liquid after the big molecule flocculation treatment of the degree of depth; Respectively through the stable flow quantity of controlling out of flow controller; Offal offal 2 liquid after the advanced treating are got into horizontal spiral discharge sedimentation centrifuge to be separated; Get liquid 3 respectively, offal liquid 3 dregginess are 0.151%, and offal liquid 3 dregginess are 0.128%; In 30 minutes, collect the slag of horizontal spiral discharge sedimentation centrifuge slag outlet, detect data.Liquid 3 gets into disc separator respectively, gets liquid 4, and offal liquid 4 dregginess are 0.085%, and offal liquid 3 dregginess are 0.070%.Get into the vacuum enrichment process respectively after offal offal centrifugal liquid 4 got into 60--70 degree pasteurize removal of impurities respectively, offal and offal concentrate mixed according to formula rate, again dip-coating to the sheet base of moulding, dry, smash moulding.

Embodiment 2:

The hot-water soak that 1000 kilograms of offals and 1000 kilograms of offals are spent with 55 degree and 50 respectively 40 minutes; Fully stir the direct blowing of infiltration back offal smoked sheet respectively and get into the single-screw squeezer; The offal cigarette is signed through separating fine back and is got into the press master shove by conveyor screw, obtains baccy fiber solid and tobacco extraction liquid 1 respectively.Solid over dry slag content offal line is 33.8%, and the offal line is 37.2% (spending the detection that dries to constant weight with Oven Method 105), and 1.2%, solid slag is done base in blocks after mixing to liquid slag content offal line at 2.0% offal line.Respectively with offal liquid 1 and offal liquid 1 through the straight line sieve that shakes, must offal liquid 2 (dregginess 1.0%) and offal liquid 2 (dregginess 0. 8%).Respectively liquid 2 is got into deeply purifying and removing and live together the science and engineering section, adopt liquid shitosan, adding proportion 0.5%, the flocculant processing time is 10 minutes.Help the filtering technology module to control operation automatically.Offal offal 2 liquid after the big molecule flocculation treatment of the degree of depth; Respectively through the stable flow quantity of controlling out of flow controller; Offal offal 2 liquid after the advanced treating are got into horizontal spiral discharge sedimentation centrifuge to be separated; Get liquid 3 respectively, offal liquid 3 dregginess are 0.133%, and offal liquid 3 dregginess are 0.105%; In 30 minutes, collect the slag of horizontal spiral discharge sedimentation centrifuge slag outlet, detect data.Liquid 3 gets into disc separator, gets liquid 4, and offal liquid 4 dregginess are 0.077%, and offal liquid 4 dregginess are 0.063%.Get into the vacuum enrichment process respectively after offal offal centrifugal liquid 4 got into 60--70 degree pasteurize removal of impurities respectively, offal and offal concentrate mixed according to formula rate, again dip-coating to the sheet base of moulding, dry, smash moulding.

Embodiment 3:

Be with embodiment 1 difference: the flocculant that is adopted is a marine algae extract solution.

Embodiment 4:

Be with embodiment 2 differences: the flocculant that is adopted is a marine algae extract solution.

Embodiment 5:

Be with embodiment 1 difference: the flocculant that is adopted is the compound of liquid shitosan and marine algae extract solution, and ratio is liquid shitosan: marine algae extract solution=7:3.

Embodiment 6:

Be with embodiment 2 differences: the flocculant that is adopted is the compound of liquid shitosan and marine algae extract solution, and ratio is liquid shitosan: marine algae extract solution=7:3.

Draw the extract through the deep purifying removal of impurities from table 1, the solid wet slag of discharging at the spiral shell that crouches detects the data demonstration, has in the tobacco extraction liquid body than big molecule such as more protein of control samples and pectin to be separated with slag.

Table 1

Draw the extract through the deep purifying removal of impurities from table 2, going out the demonstration of horizontal spiral discharge sedimentation centrifuge liquid separated 3 slag content detection data, this tobacco extraction liquid body slag content obviously descends.

Table 2

Find out the extract through the deep purifying removal of impurities from table 3, the liquid 4 slag content detection data after going out disc separator show that this tobacco extraction liquid body slag content obviously descends.

Table 3

Reconstituted tobacco has kept this perfume (or spice) of tobacco preferably after the flocculation treatment, and assorted gas, pleasant impression and stimulation are had tangible reduction effect.Table 4 is that the inherent quality of getting the tobacco sheets by paper making method of embodiment 6 correspondences is done comparison, and control samples is not adopt the sample of deep purifying removal of impurities and sterilization processing.

Table 4

Below simple declaration is done in the technological process of accompanying drawing 2 and accompanying drawing 3: the technological process of accompanying drawing 2 is earlier offal and offal to be used hot-water soak respectively; Get into the press master shove by conveyor screw respectively after fully stirring infiltration; Obtain baccy fiber solid and tobacco extraction liquid respectively, promptly merge two kinds of extracts afterwards and obtain hybrid extraction crude extract 1.Hybrid extraction crude extract 1 purified, crouches through the sieve that shakes, deep impurity-removing obtains extract 3 after spiral shell separates, last again through pasteurize and after concentrating proportioning again dip-coating to the sheet base of moulding, drying, smash moulding.

The technological process of accompanying drawing 3 is on the basis of accompanying drawing 2 technological processes, after separating through the spiral shell that crouches, obtains extract 3 again through a video disc separating step, and the technology of all the other flow processs and accompanying drawing 2 matches.

What need particularly point out is; The mode of the foregoing description only limits to describe embodiment; But the present invention is confined to aforesaid way incessantly; And those skilled in the art can modify in not departing from the scope of the present invention in view of the above easily, and therefore scope of the present invention should comprise the disclosed principle and the maximum magnitude of new feature.

Claims (8)

1. the deep purifying impurity removal process of extract in the production process of tobacco sheets by paper making method is characterized in that processing step is following: a, tobacco waste is comprised that offal, cigarette are signed, offal extracts through behind the abundant water infiltration in hot water; B, the mixture of each tobacco waste and water is got into the press master shove respectively, carry out Separation of Solid and Liquid, the crude extract body portion is crossed the straight line sieve that shakes and is carried out Separation of Solid and Liquid; C, the straight line sieve liquid separated of shaking gets into and to help the filtering technology module to carry out the big molecule flocculation treatment of the degree of depth, and the flocculant of employing is the food grade flocculant, and adding proportion is 0.1-0.8%, and flocculation time was at 5-50 minutes; Liquid after d, the big molecule flocculation treatment of the degree of depth gets into a horizontal spiral discharge sedimentation centrifuge and separates; E, the liquid after the centrifugation of d step get into concentration systems and concentrate through 60-70 degrees centigrade of pasteurize removal of impurities.

2. the deep purifying impurity removal process of extract in the production process of tobacco sheets by paper making method according to claim 1; It is characterized in that in the c step; The food grade flocculant that adopts can be the chitose that animal is extracted from edible natural Haihe River; Comprising the chemical product after the acidylate, carboxylated, etherificate, N-alkylation, esterification of chitin, shitosan, shitosan, also can be the marine algae extract that from the plant of edible natural Haihe River, extracts, and comprises agar, sodium alginate, Thallus Laminariae (Thallus Eckloniae) extract.

3. the deep purifying impurity removal process of extract in the production process of tobacco sheets by paper making method according to claim 1 and 2; It is characterized in that described food grade flocculant is the compound of shitosan and marine algae extract; Wherein liquid shitosan 50-80%, liquid seaweed extract 20-50%.

4. the deep purifying impurity removal process of tobacco sheets by paper making method extract according to claim 3; It is characterized in that: offal soaked 20--40 minute in the hot water of 50-55 degree in a step, and offal, cigarette are signed raw material and in the hot water of 55-60 degree, soaked 40--60 minute.

5. the deep purifying impurity removal process of tobacco sheets by paper making method extract according to claim 4; It is characterized in that: in the d step; Liquid after the big molecule flocculation treatment of the degree of depth; Get into the spiral shell discharging sedimentation centrifuge that crouches through the stable flow quantity of controlling out of flow controller, this centrifuge can be adverse current type, parallel flow type or three divergence types, and the maximum separation factor reaches 4000.

6. the deep purifying impurity removal process of tobacco sheets by paper making method extract according to claim 5; It is characterized in that being introduced into the fine particle that disk centrifuge further separates flocculation through a horizontal spiral discharge sedimentation centrifuge liquid separated in the steps d, the liquid after separating through butterfly gets into the e step again and accomplishes sterilization and concentration technology.

7. the deep purifying impurity removal process of tobacco sheets by paper making method extract according to claim 1; It is characterized in that in the b step; Press master is selected double helix shove or single-screw squeezing shove for use; Solid slag partly gets into down one press master or directly carries out defibrination and handle after the Separation of Solid and Liquid, and the slag that shakes after the sieve Separation of Solid and Liquid through straight line gets into following one press master or directly defibrination processing.

8. the deep purifying impurity removal process of tobacco sheets by paper making method extract according to claim 1; It is characterized in that in the d step that the solid slag after horizontal spiral discharge sedimentation centrifuge separates can advance the papermaking of defibrination operation also can further handle back application when coating.

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