CN206090156U - Woody living beings fibrid of annual non - thick liquid environmental protection pulping system - Google Patents

Abstract

This patent application provides a woody living beings fibrid of annual non - thick liquid environmental protection pulping system, and wherein pulping system presses the processing line way, and this system composition includes raw material treatment device portion, the crowded silk portion of putting of making up of splitting, and fine portion of putting and the washing dewatering device portion of making up of multistage series connection mill becomes the pulping system that the material links up mutually by transport unit between each device portion, the raw materials via raw material handling, crowded split silkization, mill fibreization and screening, purify, the washing, finally make the article of thick liquid. The technological advantage that this technical scheme has the ring, protects finished product thick liquid high quality, the thick liquid yield is high, the basic non flowing of fibre loses substitutes natural -color wood pulp in cardboard in density board, packing product, the paper production, and it is obvious to make manufacturing cost reduce.

Description

Annual non-ligniform biomass fiber starches environment-friendly pulping system

Technical field

The utility model relates to the fiber pulping system of appliable plant fibrous raw material, more particularly to annual plant Straw or straw the pulping system of fibre pulp products is prepared for raw material.

Background technology

China is density board, the cardboard in packing articles, the production of paper product, consumption big country, these products are for a long time The raw material for using is timber.In the face of the increasingly deficient present situation of timber resources, though the extremely abundant straw of resources for research, straw intentionally Etc. the pulping technique of annual non-woody crops, but because of annual non-woody crops self character, its technical problem and ask The complexity of topic, allows many technical staff people to hope and draw back, it has been disclosed that related pulping technique there is means complexity, technique bar Part is more and have high demands, pulp quality it is low, the serious technical problem of what is more important environmental pollution.Therefore, density board, paper Plate, the production of paper product are more the high-volume import for relying on external commodity wood chip, wood-pulp board and waste paper at present.It is accompanied by The import cost of the more powerful ecological environmental protection consciousness in the whole world, timber and its product is also more and more high.From another angle From the point of view of, the numerous paper industries of China that jeopardized that the extensive import of paper pulp and its product is serious develop in a healthy way.

Therefore, though being that the pulping technique of raw material and application are relatively common and ripe currently with woody fibre plant, such as Chemical pulping, chemical-mechanical pulping and machinery pulping, but annual non-woody agricultural crop straw or straw, because with wood materials Internal structure and suitable big of composition difference, so up to the present, still without application straw reasonable in design, meeting environmental requirement Stalk or straw are raw material, the finished pulp and its manufacture method technology that are adapted to application to density panel products and other product manufacturings.

The dominant technology means of existing slurrying are the spies using alkaline cooking slurrying production technology, crops and grass fiber Property with wood fibre is compared in morphological element, with non-fiber composition accounting it is big the characteristics of, wherein comprising ash is big, silicone content High, heteroproteose cell is more, causes self color depth, during these characteristics are a whole set of pulping process, especially with soda pulping process technique least Sharp factor, removes the compositions such as ash, lignin with high alkaline process, while the sewage for being difficult to Transformation Application in a large number can be produced, environment is dirty Dye pressure is very big, and the consumption of chemicals such as water consume consumption and alkalescence is larger in whole set process；High-alkali cooking process, it is necessary to set Washing is put, screened, be dehydrated into the steps such as slurry, steaming and decocting is typically independently carried out with bleaching process, black liquor, middle wastewater discharge Greatly, in the sewage of discharge, float and content of organics are high, color and luster is deep, in obvious acid or alkalescence, it is difficult to biochemical conversion, work Sequence is complicated, cost pressure is big, environmental protection pressure is big, and fiber loss amount is higher, low into pulp yield.

In sum, technical staff faces characteristic far different than the annual non-woody crops class straw of lignocellulose raw material Stalk or straw raw material, still to there is dominant technology means removing the non-fiber composition in raw material, to obtaining qualified finished pulp system Product, but technology road is difficult, technology development is had difficulty in taking a step, and causes resourceful annual non-woody crops class straw Or straw raw material cannot obtain rationally, the utilization of high-efficiency environment friendly.

The content of the invention

The goal of the invention of this utility model application is to make full use of resourceful annual non-woody crops for system Slurry raw material, the high pulping technique of exploitation environmental protection, fibrous finished product slurry quality, can especially replace wooden finished pulp, be applied to close The production of the products such as degree plate, the paper matrix container of packing articles apoplexy due to endogenous wind, paper support, supporting plate, backplate, paper, reduces production cost, reaches So that improve product quality, there is provided a kind of environmental protection, into the annual non-ligniform biomass fiber that pulp yield is high, pulp quality is good Slurry environment-friendly pulping system.

The annual non-ligniform biomass fiber slurry environment-friendly pulping system solution that this utility model is provided, which is main Technology contents are：A kind of annual non-ligniform biomass fiber starches environment-friendly pulping system, by process line, the system composition bag Material processing device portion is included, portion, multi-stage series mill fibrillation device portion and washing/dehydrating device portion, each device are put in the makeup of squeeze crack silk The pulping system being mutually connected by conveyer component material between portion；The structure composition in portion is put in described squeeze crack silk makeup：Device In casing, rotational support two is parallel and is intermeshed the beaming roller of operation, and charging aperture, discharging are respectively provided with the casing at beaming roller two ends Mouthful, at least provided with a section in three sections of one section of engagement, engagement two-stage nitration and engagement on beaming roller, and selected engagement segment number is at least For one group, each engaged section is mutually connected composition by feed auger and job step, and the job step of one section of engagement therein is multiple tracks What cam disc engagement interlocked rolls section；The job step of engagement two-stage nitration is grinding tooth disk section, and the grinding tooth disk of each beaming roller is provided with multiple tracks Ring gear, per pass ring gear are formed with many grinding tooth rings towards precession steering gear peak by some oblique groove millings, and two rollers grinding tooth disk is nibbled Ring gear is axially staggered；Inverse rotation engaged section of the active section of three sections of engagement for reverse thread, and by some oblique groove milling odontotomies Meet tooth of the anti-spiral shell to beaming roller precession direction to arrangement in peak；Each disc mill in described mill fibrillation device portion is mill room It is interior arrange with one heart it is relative, and two mills of speed discrepancy work operating mechanism, mill fibrillation device portion is to fine grinding by corase grind The production line that each disc mill Jing conveyers are sequentially connected in series.

Technical solutions of the utility model complete refined finished pulp production, and its finished pulp is that the uniform true qualities of form are finely fine Dimension slurry, the composition such as hemicellulose, lignin, silicon dioxide, ash in raw material by strong mechanical energy squeeze crack, grind decomposition, Mix distribution, remain in each fiber peripheral with molecularity and cellulosic molecule, the primary non-fiber composition in these biomass Reservation, better than the product neededs such as finished pulp production density plate, packing articles and the paper for removing it addition as Kaolin, The product quality of the conventional fabrication processes of the fillers such as Pulvis Talci, applying glue, titanium dioxide, Alumina, being capable of 100% replacement wood chip fiber Denseness sheet material close in manufacture, highly dense.The composition of this pulping system is excellent with the technology for constituting simple and compact, high working efficiency Point, the mechanical pulping method without sewage discharge of enforcement, the use without chemical agent, environmental-protecting performance are superior.

Description of the drawings

Fig. 1 and Fig. 2 are two embodiment pie graphs of this utility model pulping system.

Fig. 3 is that cut-away view is put in the makeup of squeeze crack silk.

Fig. 4 is that two rollers rotating Vortex cooperation pie graph is put in the makeup of squeeze crack silk.

Fig. 5 is that the counter-rotation cooperation pie graph of two rollers is put in the makeup of squeeze crack silk.

Specific embodiment

To give birth to the straw or straw of non-woody crops class year in all one's life as raw material, Jing is of the present utility model annual non-woody Biomass fiber starches environment-friendly pulping system, realizes the pulping process of non-environmental-pollution, obtains into pulp yield height, form equal The high true qualities fine fiber finished pulp of even, quality.

As shown in Figure 1, 2, the annual non-ligniform biomass fiber slurry environment-friendly pulping system that this utility model is provided, presses Process line, the system composition include material processing device portion, and portion is put in the makeup of squeeze crack silk, multi-stage series mill fibrillation device portion with Washing/dehydrating device portion, the pulping system being mutually connected by conveyer component material between each device portion.In this enforcement structure, institute The conveyer stated uses conveying worm, especially with lifted incline installation position conveying worm 1,4,9,12,15, 18, in course of conveying, free moisture content is removed as far as possible.

The pulping process realized by described pulping system is：

（1）, Feedstock treating

Feedstock treating is implemented by material processing device portion, by raw material cutting, and impurity and purification.By plant straw or original text Bar is cut to the length in 5-80mm specification limits, then dry cleaning, or dry and wet mixing purification.

After dry cleaning, i.e. raw material are by disconnected cutting, material implements impurity and purification by dust removal of pneumatic separation, screening, magnetic separation etc., removes The impurity foreign bodies such as the careless crumb of residual, sandstone, ironware.If raw material cleanliness factor itself is higher, only can remove through magnetic method purification Ironware, and without other purifying and dedusting methods of needs.

Dry and wet mixing method, can be by above-mentioned dry process after typically to obtaining higher cleanliness, then Jing or direct Wet cleaning technique：Material is sent into into remove impurity by conveyer and collects material washing machine 2, this remove impurity is collected the structure of material washing machine 2 and constituted：Bag The container of spilling water flowing is included, at least one main shaft for being provided with some material toggling wings in container, is horizontally arranged with, material enters container In, by the material toggling wing of main shaft to discharging direction rotary dial, the heavy seeds in material are precipitated to the miscellaneous tank of collection of container bottom, are determined Phase removes discharge, and the little material of proportion floats and wanders in dewaterer 3 with spilling water, deviates from free water, improves mass dryness fraction.Described is de- Water dispenser can select vibrosieve or the spiral dewaterer with sieve aperture, or vibrosieve and spiral dewaterer combinative structure.Thereafter, by The dehydration of conveying worm 4 is delivered to the makeup of squeeze crack silk and puts the quantitative mechanism before portion 8.

（2）, squeeze crack silk

The material conveyed by conveying worm 4, its mass dryness fraction are preferably controlled in the range of 30%-70%, by quantitative mechanism, including Quantitative storehouse 5, quantitative machine 6 and feeding serew 7, quantitative feeding squeeze crack silk makeup when waiting are put 8 squeeze crack silkization of portion and are processed.

Portion 8 is put in described squeeze crack silk makeup, referring to Chinese patent CN2011101123217 technical schemes, ties with reference to Fig. 3 In structure, this apparatus housing, rotational support two is parallel and is intermeshed beaming roller 80a, 80b of operation, in the casing at beaming roller two ends respectively Charging aperture 86, discharging opening 87 are set, during the engagement operation structure on beaming roller includes three sections of one section of engagement, engagement two-stage nitration and engagement At least one section, and it is selected engagement segment number be at least one group, each engaged section is by feed auger A1/B1/C1 and operation Section A2/B2/C2 phases are connected composition.Job step A2 of one section of engagement therein is that the engagement of multiple tracks cam disc staggeredly rolls section, same The cam portion of each cam disc 81 of beaming roller is mutually radially staggered, and as shown in Fig. 4,5, each cam disc of two rollers is engaged staggeredly Engagement is constituted；Job step B2 of engagement two-stage nitration is grinding tooth disk section, and the grinding tooth disk of each beaming roller is provided with multiple tracks ring gear 82, per pass tooth Ring 82 is formed with many grinding tooth rings towards precession steering gear peak 90, two rollers 80a, 80b grinding tooth disk by some oblique groove millings 83 The axially staggered engagement of grinding tooth ring；Inverse rotation engaged sections of the active section C2 of three sections of engagement for reverse thread 88, and by some oblique millings Meet tooth of the anti-spiral shell to beaming roller precession direction to arrangement in 89 odontotomy peak 91 of groove.

The material of mass dryness fraction 30-70% puts portion 8 into the makeup of squeeze crack silk, constantly sends into work by each engaged section feed auger Section, by the extruding of high intensity physics engaging structure part, tear in active section, makes material inner structure pretend with in lasting physics Simultaneously there is transformation, the non-fiber composition such as the hemicellulose of tight fibrous tissue, lignin is in accompanied by intense physical action In the high temperature and high pressure heat energy of generation, moment is cracked, is separated, being softened, and this process is rapid, violent and thorough, and raw material is pressed Split, squeeze be torn into thread crude fibre, fibrous inside capillary tube becomes in sponge shape, enhance fiber finer cell wall infiltration absorbent, Promote fiber fast softening, integrally become in pulp, fiber softening plasticity effect is significant is improved.

（3）, mill fibrillation

Jing steps（2）The pilot process material of output is fine by the multistage disc mill mill that conveying worm 9,12,15 is connected Chemical conversion slurry.In the present embodiment structure, corase grind disc mill 11, middle mill grinding machine 14, fine grinding disc mill 17 are set gradually, by The series connection of conveying worm 9,12,15 is mill production line.Before intermediate material enters corase grind disc mill 11, dilute adjusts which To 15-50%, in corase grind output slurry feeding before mill grinding machine 14, dilute adjusts its mass dryness fraction to 10-40% to mass dryness fraction, in To before refining disc mill 17, dilute adjusts its mass dryness fraction to 6-30% to mill output slurry, and multi-stage series disc mill is implemented thin Fibrosiss process, can also in its end is set up concentration or low concentration disc mill job step, further to improve fiber evenness matter Amount.

Disc mill in described mill fibrillation device portion, preferably with Chinese patent：CN2011101582491's is " high Grinding type impregnates disc mill " construction, arrange its mill room in that concentric mill face is relative, and the work of two mills that operates of speed discrepancy Mechanism, with the propulsion of mill circuit, is also presented the grinding of increasingly fibrillating.

（4）, screening, washing Jing steps（3）The fibre stuff for obtaining is processed, then is dehydrated, is dried, make finished pulp.

By conveying equipment, the conveying worm 18 of such as Fig. 1, the conveying stock pump 18 ' in Fig. 2 is by step（3）Process what is obtained Fibre stuff is delivered to thickening machine, and shove is dehydrated, and obtains wet shape commodity essential color fiber slurry, can again by screening, purifying, do It is dry, finished product slurry.The water of thickening machine removing sends into middle-stage wastewater pond 10, after precipitation, is back to leading portion purification and washing Or back segment mill thinned water.

The pulping system that this utility model is provided, it is whole to add without chemical assistant, also reach existing traditional soda chemistry The slurry mass effect of slurrying, whole set process method are semidry method pulping with high density method.The use of alkaline oxygenated type medicament is compared existing There is pulping process additive amount of medicament also extremely small, 1/the tens of only existing pulping process additive amount of medicament.A whole set of work , without black liquid discharging, the waste water index in middle-stage wastewater pond 10 is low, COD (COD)≤1000mg/L for skill whole process, is only tradition The 1/200 of technique waste water, can complete water body purification by conventional precipitation water process, Water warfare low cost, can fully recovering again In process system, water consume consumption is few.

Environment-friendly pulping system, the finished pulp matter for being obtained are starched by annual non-ligniform biomass fiber of the present utility model Amount is high, and as a example by being applied to corrugated paper processed with slurry, its technical specification is higher than high-strength corrugated paper standard A level international technology index.

Claims (2)

1. a kind of annual non-ligniform biomass fiber starches environment-friendly pulping system, it is characterised in that by process line, the system Composition includes material processing device portion, and portion, multi-stage series mill fibrillation device portion and washing/dehydrating device portion are put in the makeup of squeeze crack silk, The pulping system being mutually connected by conveyer component material between each device portion；The structure composition in portion is put in described squeeze crack silk makeup For：In apparatus housing, rotational support two is parallel and is intermeshed the beaming roller of operation, and charging is respectively provided with the casing at beaming roller two ends Mouth, discharging opening, at least provided with a section in three sections of one section of engagement, engagement two-stage nitration and engagement on beaming roller, and selected engaged section Quantity is at least one group, and each engaged section is mutually connected composition, the operation of one section of engagement therein by feed auger and job step Section rolls section for what the engagement of multiple tracks cam disc interlocked；The job step of engagement two-stage nitration is grinding tooth disk section, on the grinding tooth disk of each beaming roller Multiple tracks ring gear is provided with, per pass ring gear is formed with many grinding tooth rings towards precession steering gear peak, two rollers by some oblique groove millings Grinding tooth disk grinding tooth ring is axially staggered；Inverse rotation engaged section of the active section of three sections of engagement for reverse thread, and by some oblique groove millings Meet tooth of the anti-spiral shell to beaming roller precession direction to arrangement in odontotomy peak；Each disc mill in described mill fibrillation device portion For arrange in mill room with one heart it is relative, and speed discrepancy work two mills operating mechanism, mill fibrillation device portion is by roughly grinding To the production line that each disc mill Jing conveyers of fine grinding are sequentially connected in series.

2. annual non-ligniform biomass fiber according to claim 1 starches environment-friendly pulping system, it is characterised in that disk Middle concentration or low concentration disc mill job step are set up in mill fibrillation device portion end.