CN109423909A - It is a kind of using grass class plant as the process integration of raw material - Google Patents

Abstract

The invention discloses a kind of using grass class plant as the process integration of raw material, and the process integration includes such a full-range reaction process of the preparation process of high-grade paper slurry --- preparation process of the wrapping paper slurry --- preparation process of foliar fertilizer；The preparation process of high-grade paper slurry mainly includes the processing step that three tanks four squeeze a highly concentrated mill, the slurry of high yield pulp1 is prepared, then by the raw material for the preparation process that the shove water that first time shove and/or preceding shove twice obtain is wrapping paper slurry after alkali being added to soften for the first time in the technical process, due to the medicament reacted in the shove water containing portion of cellulose and not in time, through softening and milled processed again, the preparation of wrapping paper slurry may be implemented；The expressed water generated in the preparation process of wrapping paper slurry, recovery processing prepare raw material as foliar fertilizer.Without black liquid discharging, reuse water circulation use, energy saving during the process integration, the process integration is made to become a kind of pulping process of green.

Description

It is a kind of using grass class plant as the process integration of raw material

Technical field

The invention belongs to papermaking and its devil liquor recovery technical fields, and in particular to a kind of using grass class plant as the connection of raw material Technique is closed, which prepares high-grade paper paper pulp, wrapping paper paper pulp and foliar fertilizer.

Background technique

Paper is closely bound up important item of living with people, has been developed as packaging, printing, cigarette, culture use The raw material of the industries such as product, machinery, building materials, military project, paper industry are all widely used in all trades and professions, the hair of paper industry Exhibition directly reflects the level of national a national economy and civilization construction.China is a paper grade (stock) paper big country, and papermaking has become Drive the important basic industry of the national economic development.It is shown according to China's paper industry annual report in 2015, the whole nation in 2015 Paper and production enterprise about 2900, national paper and 107,100,000 tons of production amount, 103,520,000 tons of consumption figure, year disappears per capita The amount of expense is 75kg, 79,840,000 tons of pulp production amount, 97,310,000 tons of paper pulp consumption, and the world paper product production and consumption Liang Junju the One.

It is well known that the preparation of paper needs to consume a large amount of pulping raw material, and China is the country in the more fields in a Shaolin, Afforestation rate only has 16.35%, and moreover, our plupwood utilization rates are also below world average level.According to the United Nations Statistics, world's paper grade (stock) timber averagely account for the 7~8% of total amount, and advanced forestry is national, such as Finland, the U.S., Canada's papermaking With the 32% of the total amount of wood of timber Zhan, and China is used for the 4% of the China timber Jin Zhan scalage of paper industry every year.But I State is a large agricultural country, and according to statistics, the whole nation shares more than 1,800,000,000 mu of arable lands, and producing grain per year is more than 500,000,000 tons, the agricultural generated every year More than 600,000,000 tons of stalk, non-wood-fiber is more than 700,000,000 tons, there is a large amount of agricultural wastes (such as cotton pavilion, sweet deer slag, wheat straw) every year (such as bamboo, reed, awns stalk are for pulping and paper-making utilization with other miscellaneous gramineae plants.These grass class plants Abundance, cheap, growth cycle is short, is one of the primary raw material of current China's paper industry.

China's paper and board product are of less types at present, and only more than 600 kinds, be the half that developed country can produce paper kind, And country's paper product technology content is lower, and second-rate, low-and-medium-grade products accounts for 60%, and middle-grade and expensive goods respectively account for 20%.With relevant industries technological progress and successive generations of products, existing paper product structure has been not suitable with the change of paper consumption market Change.Chinese papermaking association relevant expert indicates, domestic paper and cardboard consumption structure from it is low and middle-grade to medium and high quality transformation be big Gesture is become.To increase market effective supply, paper and board product should to be thinned, improve quality, improve grade, hair multi items in terms of Exhibition.Wherein it is mostly important be exactly high-grade paper development and utilization, this kind of top grade paper mainly includes developing high-grade newsprint, top grade Offset paper, high-grade information paper, high-grade office paper, luxury food medicinal paper, high-grade goods package paper and cardboard, The products such as high grade coated paper and fine tissue.

Traditional paper technology is the main processing steps such as paper making raw material to be passed through to slurrying, modulated, manufactured paper with pulp, process, wherein Slurrying is the first step and the most key step of papermaking, and the process of slurrying is exactly the lignin deviate from pulping raw material Process；The subtractive process is broadly divided into chemical pulping method, mechanical pulping method and semichemical pulping method, and chemical pulping method is using most For extensive production method；It mainly includes the operation such as crushing-boiling-alkali softening-water squeezing-washing-bleaching；Chemical pulping method is Using chemical liquid in the device for being passed through 150 DEG C or more of high-temperature steam continuous boiling tablet, make wooden in pulping raw material Element reacts with chemical reagent at high temperature produces the hydrotrope, with fiber separation at slurry；Although chemical pulping remains fibre The natural length of dimension eliminates most lignin, but pulp yield is low, and pollution is big, and during the cooking process, due to changing The addition of medicament is learned, a kind of niff, taste are bitter so that the slurrying being prepared has, in subsequent water squeezing and washed Cheng Zhong can also generate a large amount of black liquor.

Contain a large amount of suspended solid, organic pollutant and noxious material in black liquor, wherein there are about 30~35% nothings Machine object, main ingredient are other sodium salts that sodium hydroxide, sodium carbonate, vulcanized sodium, sodium sulphate and organic matter combine；Also containing 65~ 70% organic substance, main ingredient are lignin, resin, starch and low molecular compound etc., if by the black liquor direct emission It will cause serious pollution into water body, such as the paper waste containing a large amount of fibers, pigment and inorganic salts can make water body blackening, and There is special foul smell；The bod (BOD) of black liquid containing high concentration organic contaminant may be up to 5000~ 40000g/L can largely consume the dissolved oxygen in water, influence water quality；A large amount of existing alkaline matters can make the pH of water body in black liquor Value sharply increases, and destroys the balance of water body environment.

The device is complicated for traditional alkali recovery technology, amount of investment is big, it was reported that a set of soda recovery unit generally requires investment More than 30000000 RMB, and its day-to-day operation expense is also higher, paper plant's recycling alkali of 75~100 tons of paper pulp of a daily output Cost is up to 2671 yuan/ton of alkali, and the market price of sodium hydroxide is only 1800 yuan, thus, our most enterprises are all powerless at present Alkali collection is carried out, but by black liquor direct emission or the direct emission after diluting, cause the very big pollution in environment especially waters.

Currently, preparing the existing relevant report of fertilizer using black liquid, and fail to effectively be promoted, not only In this way, there is also some problems for these technical solutions: (1) higher cost；(2) fertilizer quality being prepared is poor, and fertilizer efficiency is not good enough； (3) it also needs to add other nutrient sources, and its dosage is suitable with the fertilizer that other methods in the prior art are prepared；(4) sharp It is few with mode, single variety.

Foliar fertilizer is for the purpose of Foliage Absorption, is a kind of supplement of plant absorption nutritional ingredient, is absorbed to make up root system Nutrient needed for crop is directly applied the fertilizer on blade face, referred to as foliar fertilizer by the deficiency of nutrient.The blade of plant has upper layer and lower layer table Skin is made of epidermal cell, there is cuticula and wax on table on the outside of cell, can protect the mesophyll cell row under epidermal tissue Make the functions such as photosynthetic, breathing, do not influenced by the variation of extraneous unfavorable conditions, there are many more small stomatas for blade surface, exercise The function of gas replacement.Studies have shown that cuticula is made of a kind of Long carbon chain fatty acid polymer with hydroxyl and carboxyl, this The molecular gap and hydroxyl, carboxylated hydrophilic group on molecule of kind polymer can allow aqueous solution to penetrate into leaf, certainly, leaf The stomata on piece surface is that foliar fertilizer enters blade more easily channel.The cuticula of urea substance in fertilizer to epidermal cell There is emollescence, the infiltration of other nutriments can be accelerated, so urea becomes the important constituent of foliar fertilizer.

And contain required constant in a large amount of organic matter and growing process in the black liquor generated in pulping process A kind of foliar fertilizer haveing excellent performance will certainly be prepared if available effective use with middle microelement.

The Yellow humic acid foliage fertilizer that a kind of straw pulp black liquor by ammonium sulfite method is raw material is disclosed in Chinese patent CN101486604A, it should Foliar fertilizer in the preparation process of the foliar fertilizer, is flashed using continuous 2 times using straw pulp black liquor by ammonium sulfite method as raw material --- five effects The straw pulp black liquor by ammonium sulfite method is concentrated in the technique of evaporation, although its utilization rate in order to improve thermal energy, is utilized using steam circulation Mode, but it is inevitable introducing external energy；Moreover, the equipment for carrying out the technique is in the condition of high temperature for a long time, Consume and maintenance for equipment, it is also desirable to put into a large amount of fund.And the preparation process is only to the Asia after concentration Soluble trace elements are added in ammonium method straw pulp black liquor, there is no solid to the harmful substance in the straw pulp black liquor by ammonium sulfite method, suspension Body does any processing, is also retained in resulting Yellow humic acid foliage fertilizer；The plant for absorbing this kind of foliar fertilizer may supplemented Some poisonous and hazardous substances and element can be also deposited in vivo while nutrient.

Summary of the invention

In order to solve the deficiencies in the prior art, the object of the present invention is to provide a kind of using grass class plant as the joint of raw material Technique, the process integration mainly include the preparation process of high-grade paper slurry --- preparation process of wrapping paper slurry --- Such a full-range reaction process of the preparation process of foliar fertilizer.

Object of the present invention is to what is be achieved through the following technical solutions:

It is a kind of using grass class plant as the joint preparation process of raw material comprising following steps:

(1) preparation of high-grade paper slurry

(1.1) grass class plant material is pre-processed, obtains pulping raw material, is stored in feed bin；

(1.2) pulping raw material and the medicament mixing come out from feed bin, carries out first time sofening treatment；

(1.3) first time water squeezing processing is carried out to the mixed material after the first time sofening treatment of step (1.2), obtains the One shove mixed material and the first shove water；

(1.4) it is optionally added into water and/or recycle-water into the first shove mixed material of step (1.3), carries out second Secondary water squeezing processing, obtains the second shove mixed material and the second shove water；

(1.5) water and/or recycle-water are added into the second shove mixed material of step (1.4), carries out third time water squeezing Processing, obtains third shove mixed material and third shove water；It is preferred that the third shove water is back to use step as recycle-water (1.2) and/or (1.4) and (1.5)；

(1.6) the third shove mixed material of step (1.5) and medicament are mixed, carries out second of sofening treatment；

(1.7) mixed material after second of sofening treatment of step (1.6) is optionally added into alkali or acid adjusts its pH The 4th water squeezing processing is carried out afterwards, obtains the 4th shove material and the 4th shove water；It is preferred that the 4th shove water is as reuse Water is back to use step (1.2) and/or (1.4) and (1.5)；

(1.8) after the 4th shove mixed material of step (1.7) being optionally added into alkali or sour its pH of adjusting, bleaching is added Agent and optionally clear water carry out highly concentrated mill defibrination, obtain grinding slurry；

(1.9) grinding slurry that highly concentrated mill is discharged in step (1.8) is subjected to bleaching, obtains high-grade paper slurry；

(2) preparation of wrapping paper slurry

(2.1) the first shove water that step (1.3) and step (1.4) obtain and the second shove water are staticly settled and is done Substance, the dry matter are optionally added into above-mentioned pulping raw material, and the shove water obtained with step (1.3) and step (1.4) stirs Mixing, obtains mixed material；

(2.2) add basic agent further to adjust pH value up to 13 or more the mixed material of step (2.1) and carry out cold soaking；

(2.3) mixed material after the cold soaking of step (2.2) is subjected to shove processing, obtains shove mixed material and the 5th Shove water；

(2.4) the shove mixed material of step (2.3) is subjected to defibrination in high-density paste mill；

(2.5) slurry after the grinding of step (2.4) is reacted, obtains reaction paper pulp；

(2.6) the reaction paper pulp of step (2.5) is carried out plus acid for adjusting pH value is to 7~7.5, obtain wrapping paper slurry；

(3) preparation of foliar fertilizer

(3.1) the 5th shove water of extraction step (2.3), as black liquid；

(3.2) strain liquid is added, carries out fermentation reaction, the mix products after being fermented；

(3.3) into the mix products of step (3.2) be added etc. quality humic acid, mixed material is prepared；

(3.4) nutrient source is added into the mixed material of step (3.3), foliar fertilizer is prepared.

In the present invention, in the preparation process of the high-grade paper slurry of step (1):

In step (1.1), the pretreatment of raw material includes removal of impurities dedusting, crushing, screening；

Wherein, the removal of impurities dedusting is the impurity and dust removed in raw material, and dedusting carries out preferably in dust-extraction unit, or Person top in de-burring machine or storage bin is added horn-like dust-extraction unit, i.e., dedusting and crushing or storing feeding one into Row；

The crushing is the section material that raw material is ground into 1-5 centimetres (preferably 2-3 centimetres), preferably in materials crusher into Row；

The screening is to handle smashed fracture through sieving separating.

In step (1.1), the raw material is selected from grass class plant, such as selected from reed, straw, bamboo chip, cotton stalk, wheat Grass, corn stover, broomcorn straw etc..

In step (1.2), the medicament includes water, sodium hydroxide and hydrogen peroxide, and water can be clear water or recycle-water Or the two combination；The recycle-water can be third shove water and/or the 4th shove water in subsequent handling；The clear water can To be at least one of tap water, industrial water that pH is 6.5~7.5 etc..

Preferably, the medicament is made of clear water and/or recycle-water, sodium hydroxide and hydrogen peroxide；

Preferably, the pulping raw material: clear water and/or recycle-water in medicament: sodium hydroxide: the mass ratio of hydrogen peroxide is 100:300-600:5-10:5-10, for example, 100:300:6.2:6.2.

In step (1.2), the first time sofening treatment carries out in No. 1 reactor tank；

Wherein, the pulping raw material in the feed bin and medicament are sent into No. 1 reactor tank by screw rod feed way；

Wherein, each component in the medicament is mixed with pulping raw material simultaneously respectively；

Wherein, No. 1 reactor tank does not limit specifically, such as outer preferably with the insulation reaction tank of attemperator Week has the reactor tank of insulating layer (such as rock wool layer)；Also preferably reaction of the top with watch window, periphery with rock wool layer Tinning；The watch window is used to observe the softening degree of mixed material and the discharge quantity of observation charging in softening process, does Wet degree, color etc.；The insulating layer of periphery setting is used to maintain the temperature in reactor tank, with ensure to react it is smooth into Row.

The pretreated pulping raw material and medicament can also include the steps that premixing before entering No. 1 reactor tank: logical Crossing screw rod feed way will be pre-mixed in pretreated pulping raw material and medicament feeding agitating device, stir evenly Afterwards, then in such a way that screw rod feeds by the mixed material after premixing it is sent into No. 1 reactor tank；

Wherein, the agitating device can be stirring pool；The time of the stirring is 1~10min.

In step (1.2), the addition of medicament is so that the pH of the mixed material of No. 1 reactor tank is more than or equal to 12；

In step (1.2), the pH that the mixed material of No. 1 reactor tank is discharged is 9-10；

In step (1.2), the time of the first time sofening treatment is long for 70 minutes or more or more, such as 120min；

In step (1.2), rub due to being added during medicament after-tack self-formed from reaction is warm and screw rod feeds When the heat of generation to start reaction, the temperature in No. 1 reactor tank can achieve 90-100 DEG C, or even to 100 DEG C or more；With The extension of softening time, the temperature of the insulation effect of reactor tank, No. 1 reactor tank is maintained at 70-90 DEG C；Therefore the softening Reaction does not need injection steam or other additional heating methods.

In step (1.3), the first time water squeezing processing carries out in No. 1 press master；

Preferably, No. 1 press master is any press master well known in the prior art；

Preferably, the mixed material after the first time sofening treatment enters No. 1 shove in such a way that screw rod feeds In machine；

Preferably, raw material of the first shove water as wrapping paper slurry；

In step (1.4), second of water squeezing processing carries out in No. 2 press masters；

Preferably, No. 2 press masters are any press master well known in the prior art, and also preferably power is less than Any press master well known in the prior art of No. 1 press master；

Preferably, the mixed material of the first time shove enters in No. 2 press masters in such a way that screw rod feeds；

Preferably, raw material of the second shove water as wrapping paper slurry；

Preferably, in step (1.4), the clear water and/or recycle-water are added to guarantee at second of water squeezing It can remove more non-fibrous materials when reason；The additional amount of the clear water and/or recycle-water can be mixed according to the first shove The dry and wet degree of material is selected, and avoids leading to problems such as extrusion effect poor due to water shortage；

In step (1.5), the third time water squeezing processing carries out in No. 3 press masters；

Preferably, No. 3 press masters are any press master well known in the prior art, and also preferably power is less than Any press master well known in the prior art of No. 2 press masters；

Preferably, the mixed material of second of shove enters in No. 3 press masters in such a way that screw rod feeds；

Preferably, the third shove water is back to use in No. 1 reactor tank as recycle-water；

Preferably, suitable quantity of water and/or recycle-water is added in the second shove mixed material, wherein be added a small amount of water and/ Or the amount of recycle-water, so that the second shove mixed material reaches thick state, and reach the degree that material does not drip in the hand；

In step (1.6), the mixing and second of sofening treatment carry out in No. 2 reactor tanks；

Preferably, the third shove mixed material and medicament enter in No. 2 reactor tanks in such a way that screw rod feeds；

Wherein, No. 2 reactor tanks do not limit specifically, such as outer preferably with the insulation reaction tank of attemperator Week has the reactor tank of insulating layer (such as rock wool layer)；Also preferably volume is less than the top of No. 1 reactor tank with watch window, outer Week has the reaction tinning of rock wool layer；The watch window is for observing the softening degree of mixed material and sight in softening process Examine discharge quantity, dry and wet degree, the color etc. of charging；The insulating layer of the periphery setting is used to maintain the temperature in reactor tank, with Ensure that reacts goes on smoothly.

In step (1.6), the medicament includes water, sodium hydroxide and hydrogen peroxide, and water can be clear water or recycle-water Or the two combination；

Preferably, the medicament is made of clear water and/or recycle-water, sodium hydroxide and hydrogen peroxide；

Preferably, the mass ratio of clear water and/or recycle-water is 100:300-600 in the pulping raw material and medicament；It is described The mass ratio of sodium hydroxide and hydrogen peroxide is 1:0.9~1.1, for example, 1:1；

Preferably, the mass ratio of the pulping raw material and sodium hydroxide and hydrogen peroxide is according to third shove mixed material Softening degree adjustment；If bating effect is bad, need to add sodium hydroxide and hydrogen peroxide；Sodium hydroxide and hydrogen peroxide simultaneously Additional amount to guarantee the mixed material in No. 2 reactor tanks pH be 10-12, for example, 11；

Preferably, the time of second of sofening treatment is for 70min or more or more long, such as 120min；It is preferred that logical The pH of the mixed material of detection No. 2 reactor tanks of discharge is crossed to control the reaction time, the pH is 7-9；Due to softening oneself reacted The temperature of the heat insulation effect of fever phenomenon and reactor tank, second of sofening treatment is maintained at 70-90 DEG C；

In step (1.6), if the pH of the mixed material of No. 2 reactor tanks of discharge is greater than 9, in No. 2 reactor tanks discharging spiral shells Spinner handle adjusts the pH of mixed material close to the position acid adding of No. 2 reactor tank discharge ports, down between 7-9, then carries out the 4th Secondary water squeezing processing；

In step (1.7), the 4th water squeezing processing carries out in No. 4 press masters；

Preferably, the mixed material after second of sofening treatment enters No. 4 shoves in such a way that screw rod feeds In machine；

Preferably, No. 4 press masters are any press master well known in the prior art, and also preferably power is less than Any press master well known in the prior art of No. 3 press masters；

Preferably, the 4th shove water is as recycle-water reuse to No. 1 reactor tank and/or No. 2 reactor tanks；

It is 6.5-7 by the pH of the 4th shove mixed material described in shove in step (1.7), for example, 7, if discharge 4 The pH of 4th shove mixed material of number press master is lower than 6.5, then goes out in No. 4 press masters discharging screw rods close to No. 4 press masters A small amount of hydrogen peroxide and sodium hydroxide is added in the position of material mouth, it is ensured that the pH of mixed material is 6.5-7；If pH is higher than 7,4 Close to the position of No. 4 press master discharge ports a small amount of acid is added in number press master screw rod that discharges, it is ensured that the pH of mixed material is 6.5- 7；

In step (1.8), due to spontaneous thermal phenomenon during the grinding process, the temperature of the high consistency refining be 80 DEG C with On, preferably 90-100 DEG C；

Preferably, the mass ratio of the pulping raw material and bleaching agent is 8:1；

Preferably, the 4th shove mixed material and bleaching agent enter highly concentrated mill in such a way that screw rod feeds In；

Preferably, the clear water be added to guarantee grinding effect；The additional amount of the clear water can be according to the 4th The dry and wet situation of secondary shove mixed material is selected, and mill is avoided phenomena such as material overdrying or localized hyperthermia occur；

In step (1.9), the bleaching carries out in No. 3 reactor tanks；

Preferably, the grinding slurry enters in No. 3 reactor tanks in such a way that screw rod feeds；

Preferably, No. 3 reactor tanks do not limit specifically, preferably with the insulation reaction tank of attemperator, such as Periphery has the reactor tank of insulating layer (such as rock wool layer)；Also preferably volume less than No. 2 reactor tanks top with watch window, Periphery has the reaction tinning of rock wool layer；The watch window for observe in softening process the softening degree of mixed material and Observe discharge quantity, dry and wet degree, the color etc. of charging；The insulating layer of the periphery setting is used to maintain the temperature in reactor tank, To ensure that reacts goes on smoothly；

Preferably, the time of the bleaching is for 70 minutes or more or more long, such as 120min；Due to bleaching action Spontaneous thermal phenomenon, the temperature of the bleaching is 70-90 DEG C；

Preferably, the mixed material i.e. pH of finished pulp that No. 3 reactor tanks are discharged is 7-7.5.

In the present invention, the pulping process of the grass class plant is specifically included:

In step (1.2), the first time sofening treatment carries out in No. 1 reactor tank；It is described in step (1.3) First time water squeezing processing carries out in No. 1 press master；In step (1.4), second of water squeezing processing is in No. 2 press masters It carries out；In step (1.5), the third time water squeezing processing carries out in No. 3 press masters；In step (1.6), described second Secondary sofening treatment carries out in No. 2 reactor tanks；In step (1.7), the 4th water squeezing processing in No. 4 press masters into Row；In step (1.9), the bleaching carries out in No. 3 reactor tanks；

The reactor tank is that top has watch window, and periphery has the reactor tank of insulating layer；No. 1 reactor tank, No. 2 The volume (or processing capacity) of reactor tank and No. 3 reactor tanks successively successively decreases；The charging and discharging of the reactor tank are to pass through spiral What the mode that bar squeezes out carried out；

No. 1 press master, No. 2 press masters, No. 3 press masters and No. 4 press masters are the press master that power successively successively decreases； The charging and discharging of the press master are carried out in such a way that screw rod squeezes out.

In step (1.2), the addition of the medicament is so that the pH of the mixed material of No. 1 reactor tank is more than or equal to 12；Control The pH of the mixed material of system No. 1 reactor tank of discharge is 9-10；

In step (1.6), medicament addition so that the mixed material of No. 2 reactor tanks pH be 10-12, preferably 11, control The pH of the mixed material of system No. 2 reactor tanks of discharge is 7-9；

It is 6.5-7 by the pH of the 4th shove mixed material described in shove in step (1.7), for example, 7；

In step (1.9), the mixed material i.e. pH of finished pulp that No. 3 reactor tanks are discharged is 7-7.5.

In step (1.7), if the pH of the mixed material of No. 2 reactor tanks of discharge is greater than 9, in No. 2 reactor tanks discharging spiral shells Spinner handle adjusts the pH of mixed material close to the position acid adding of No. 2 reactor tank discharge ports, down between 7-9, entering back into No. 4 Water squeezing processing is carried out in press master；

In step (1.8), if the pH of the 4th shove mixed material of No. 4 press masters of discharge is lower than 6.5, squeezed at No. 4 Pulp grinder discharges screw rod close to a small amount of alkali of position addition and bleaching agent of 4 extrusion material mouths, preferably hydrogen peroxide and sodium hydroxide, really The pH for protecting mixed material is 6.5-7；If pH is higher than 7, a small amount of acid is added.

In step (1.2), the medicament includes water, sodium hydroxide and hydrogen peroxide, and water can be clear water or recycle-water Or both combination；It is preferred that the medicament is made of clear water and/or recycle-water, sodium hydroxide and hydrogen peroxide；

In step (1.6), the medicament includes water, sodium hydroxide and hydrogen peroxide, and water can be clear water or recycle-water Or the two combination；It is preferred that the medicament is made of clear water and/or recycle-water, sodium hydroxide and hydrogen peroxide；

In step (1.8), the bleaching agent is hydrogen peroxide.

In step (1.2), the pulping raw material: clear water and/or recycle-water in medicament: sodium hydroxide: hydrogen peroxide Mass ratio is 100:300-600:5-10:5-10, for example, 100:300:6.2:6.2；

In step (1.6), the mass ratio of clear water and/or recycle-water is 100:300- in the pulping raw material and medicament 600；The mass ratio of the sodium hydroxide and hydrogen peroxide is 1:0.9~1.1, for example, 1:1；

In step (1.6), the mass ratio of the pulping raw material and sodium hydroxide and hydrogen peroxide is mixed according to third shove Close the softening degree adjustment of material；If bating effect is bad, need to add sodium hydroxide and hydrogen peroxide；Simultaneously sodium hydroxide and The additional amount of hydrogen peroxide to guarantee the mixed material in No. 2 reactor tanks pH be 10-12, for example, 11.

In step (1.8), the mass ratio of the pulping raw material and bleaching agent is 8:1.

In step (1.2), the time of the first time sofening treatment is long for 70 minutes or more or more, such as 120min；

In step (1.6), the time of second of sofening treatment is for 70min or more or more long, such as 120min； It is preferred that controlling the reaction time by the pH of the mixed material of detection No. 2 reactor tanks of discharge, the pH is 7-9；

In step (1.9), the time of the bleaching is for 70 minutes or more or more long, such as 120min.

In step (1.2), when starting reaction, the temperature in No. 1 reactor tank can achieve 90-100 DEG C, or even arrive 100 DEG C or more；The temperature of final No. 1 reactor tank is maintained at 70-90 DEG C.

In step (1.6), the temperature of second of sofening treatment is maintained at 70-90 DEG C；

In step (1.8), the temperature of the high consistency refining is 80 DEG C or more, preferably 90-100 DEG C；

In step (1.9), the temperature of the bleaching is 70-90 DEG C.

In step (1.3), raw material of the first shove water as wrapping paper slurry；

In step (1.4), raw material of the second shove water as wrapping paper slurry；

In step (1.5), the third shove water is back to use in No. 1 reactor tank as recycle-water；

In step (1.7), the 4th shove water is as recycle-water reuse to No. 1 reactor tank and/or No. 2 reactor tanks.

In the present invention, the volume (or processing capacity) of No. 1 reactor tank, No. 2 reactor tanks and No. 3 reactor tanks is successively passed Subtracting, such as No. 1 reactor tank can fill 10 tons of raw materials, No. 2 reactor tanks can be 5 tons, No. 3 reactor tanks can be the 1/3 of No. 1 tank, this Mainly since in the treatment process of pulping raw material, with the removing of non-fibrous material, remaining content of cellulose gradually subtracts Reactor tank that is low, thus successively being reduced using volume (or processing capacity), can with the utilization of the effectively save energy, moreover, It can also guarantee the progress of the efficient stable of reaction.

In the present invention, No. 1 press master, No. 2 press masters, No. 3 press masters and No. 4 press masters are that power successively successively decreases Press master, this is mainly due to shove processing during, not only squeeze the water out, it is also necessary to will be non-in pulping raw material Fibrous matter removes, more importantly passing through the effect of exchanging views of press master, the fibre bundle in mixed material is changed into fiber Silk, improves the quality of finished pulp；If the power of four press masters used is identical or incremented by successively, although its processing capacity Increase, but mixed slurry cannot adequately fill up press master, cannot preferably play the effect exchanged views, and lead to the shove of press master It is ineffective, it is also possible to need to be added more medicaments and carry out softening and bleaching, not only cause unnecessary waste, can also The difficulty for aggravating post-processing, reduces the quality of slurrying.

In the present invention, in the preparation process of the wrapping paper slurry of step (2),

In step (2.1), further include the steps that drying dry matter.

In step (2.1), the weight ratio of liquid and the dry matter and optionally pulping raw material in the mixed material It is 120%~150%；

Preferably, the dry matter and optionally pulping raw material complete wetting in a liquid, and does not reach material in the hand not The degree dripped, for example, additional water supplement is when the liquid is inadequate to meet aforementioned proportion.

In step (2.1), the alkalinity of the shove water obtained from step (1.3) and step (1.4) is very high, can make The pH value of mixed material is more than or equal to 10 in stirring pool.

In step (2.2), the time of the cold soaking is 24 hours or more, for example, being 24 hours~48 hours；Cold soaking temperature For the non-icing state of mixed material to room temperature, preferably 15~25 DEG C, for example, being 20 DEG C；

In step (2.2), the basic agent is sodium hydroxide.

In step (2.3), the 5th shove water prepares raw material as foliar fertilizer；

In step (2.4), the process of lapping generates high heat, so that the temperature of mixed slurry is 80 DEG C or more, such as 80-100 DEG C, preferably 90-100 DEG C.

In step (2.5), the slurry after the grinding is with screw rod feeding into No. 4 reactor tanks；

In step (2.5), the reactor tank is provided with insulating layer, such as rock wool layer, and the insulating layer is to the high underflow Expect that the heat generated during defibrination is kept the temperature, so that slurry keeps temperature suitable with the temperature in high-density paste mill.

In step (2.5), the reaction time is 70 minutes or more, and preferably 70-120 minutes, the reaction temperature was 80 ~100 DEG C, preferably 90 DEG C.

In the present invention, in step (2), the charging and discharging of the material are carried out in such a way that screw rod squeezes out； In step (2.1), described staticly settle carries out in the first sedimentation tank；The mixing of step (2.1) and step (2.2) Cold soaking carries out in same reactor, such as sedimentation basin or reactor tank, or carries out in different reactor；In step (2.3) In, the shove processing carries out in No. 5 press masters；In step (2.5), the reaction carries out in No. 4 reactor tanks.

Preferably, in step (2.3), the Manners of Delivery when mixed material after the cold soaking is sent into No. 5 press masters is Pumping；In step (2.5), No. 4 reactor tanks are that top has watch window, and periphery has the reactor tank of insulating layer.

Preferably, in step (2.1), the alkalinity of the shove water obtained from step (1.3) and step (1.4) is very high, So that the pH value of mixed material is more than or equal to 10 in stirring pool.

Preferably, in step (2.2), the basic agent is sodium hydroxide.

Preferably, in step (2.5), the reaction time is 70 minutes or more, preferably 70-120 minutes.

Preferably, in step (2.2), the time of the cold soaking is 24 hours or more, for example, being 24 hours~48 hours； Cold soaking temperature is the non-icing state of mixed material to room temperature, preferably 15~25 DEG C, for example, being 20 DEG C；

In step (2.4), the process of lapping generates high heat, so that the temperature of mixed slurry is 80 DEG C or more, such as 80-100 DEG C, preferably 90-100 DEG C.

In step (2.5), the reaction temperature is 80~100 DEG C, preferably 90 DEG C.

Preferably, in step (2.3), the 5th shove water prepares raw material as foliar fertilizer.

In the present invention, in the preparation process of the foliar fertilizer of step (3):

In step (3.1), the pH of the black liquor is more than or equal to 10, such as pH is 10-12；

In step (3.1), the extracting method of the black liquid is any method well known in the prior art, such as Sedimentation basin, which is discharged into, from press master stands cooling；The water content of the black liquor is the preferably 10-35% less than or equal to 40%, and For thick state, reach the degree that material does not drip in the hand.

In step (3.2), the additional amount of the strain liquid is black liquor volume 1/ (20-35), such as 1/20-25,1/25- 30,1/30-35, the strain liquid contains bacillus licheniformis, wax bacillus and bacillus pumilus；And guarantee every milliliter In contain 15~2,500,000,000 active bacterias；In the strain liquid specific various bacterium stringent proportion it is not necessary to, generally It can be identically or comparably.

In step (3.2), the fermentation reaction is aerobic fermentation, and the preferably time of the fermentation reaction is 3 It -15 days, such as 7 days；The fermentation carries out (such as 20 DEG C) at normal temperature, and heat is generated in fermentation process so that temperature is reached To 50 DEG C, such as 20-50 DEG C.

In step (3.2), the pH of the mix products after the fermentation is 8-10.

In step (3.2), after the mixture of above-mentioned inoculation strain liquid is stirred evenly standing 3~5 days, casting fertilizer, then 3~5 days are stood, this process is also 1~2 time repeatable；The Composting fermentation process is a flash-ferm process, passes through the mistake The innoxious and organic materials biologically dehydrating of material may be implemented in journey, is ready for subsequent processing (addition of humic acid).

In step (3.3), it will be understood by those skilled in the art that the humic acid is selected from shows acidity in the prior art Humic acid product；

In step (3.4), the nutrient source is selected from nitrogen, phosphorus and potassium resource.

In step (3.4), the additional amount of the nutrient source is identical as humic acid.

In the present invention, due to the pH higher of the black liquor, strain liquid be added can effectively and the alkali in black liquor, sodium salt, Harmful substance ingredient reacts；After reaction, the pH of the mixed system of black liquor and strain liquid relatively reacts it

The utility model has the advantages that

1. the present invention provides a kind of using grass class plant as the process integration of raw material, the process integration mainly includes height Preparation process --- preparation process of wrapping paper slurry --- preparation process of foliar fertilizer of shelves paper slurry is such a complete The reaction process of process, the pulping raw material in the technical process obtain sufficiently and efficiently utilizing；The preparation of high-grade paper slurry Technique mainly include three tanks four squeeze a highly concentrated mill processing step, can be not only prepared by the processing step high yield pulp1, The slurry of low kappa number, by first time shove and/or preceding shove twice after then alkali being added to soften for the first time in the technical process Obtained shove water is next step production process --- the raw material of the preparation process of wrapping paper slurry, which is to utilize upper one First time shove and second of shove water in step production process are raw material, due to still containing portion of cellulose in the shove water The preparation of wrapping paper slurry may be implemented through softening and milled processed again in the medicament reacted not in time；In the packet The expressed water generated in the preparation process of paper slurry is filled, is recycled as next step production process --- the preparation of foliar fertilizer Raw material.It is described using grass class plant as during the process integration of raw material without black liquid discharging, reuse water circulation use, can both fill Divide and utilizes pulping raw material and medicament, it is energy saving, also make the joint paper-making pulping process become a kind of pulping process of green, With important research significance.

2. the top grade sizing process made of paper uses grass class plant for raw material, the technique system for squeezing a highly concentrated mill using three tanks four ?.The technique is not necessarily to boiling, using self-formed from reaction heat, reduces energy consumption of reaction, production cost.The technique is using multiple point simultaneously Section softening extrusion process, while material composition difference is softened according to each stage, the Discrete control for adjusting pH value in stages process is passed Subtract, thus sufficiently discongest the non-cellulosic material in gramineae plant and efficiently separated with cellulose, but also reaction process condition Mildly, environmental pollution is reduced；And using segmentation softening extrusion process so that each stage waste liquid is classified, according to its pH value and its Constituent content is different, using different recovery processing modes, wherein the expressed water of 1, No. 2 press master is as the original for preparing fertilizer Material, and the expressed water of 3, No. 4 press masters is because the not high impurity of its pH value is few, it is more limpid, it can be used as high-grade sizing process made of paper In recycle-water so that hand work brings the fine recovery processing of waste liquid.To sum up, the segmentation softening of the high-grade paper of the present invention is squeezed Technique out substantially increases the availability of gramineae plant raw material, improves the availability of reaction black liquor, and high quality has been made Paper pulp, slurry yield, pulp strength etc. is superior to the prior art very much.

3. the preparation process of wrapping paper slurry saves a large amount of energy, without discharge of wastewater；With technique letter It is single, slurry yield is high, slurry yield is up to 80%-95%, such as 300 tons of dry matters can obtain 260 tons of paper pulp, and equipment investment it is low, Production cost is low, the measured advantage of pulpiness.In addition, the step of the method for the present invention regrinds slurry using first shove, so that slurry is de- After water, the frictional force between high consistency pulp increases, and to grind by the effects of phase mutual friction, extruding, rubbing and distortion Slurry process generates a large amount of frictional heat, is conducive to slurry softening, is more advantageous to the dissociation of slurry, obtained packaging paper pulp meets row Industry requirement.In process of production in the pulping process using high-grade paper, obtained for the first time plus after alkali softening by shove twice black Liquid can save the processing cost of " black liquor ", realize that the medicament reacted not in time recycles, while with black liquor and its dry matter Production cost has been saved as pulping raw material, economic benefit has been improved and also reduces pollutional load.

4. the method takes full advantage of the reluctant black liquor generated in pulp preparing process, solved from source Pollution problem in pulping process, and realize the standard of environmentally friendly chemistry.The preparation process of the foliar fertilizer efficiently uses Organic matter and inorganic elements in black liquor and eliminate the poisonous and harmful substance in black liquid, the foliar fertilizer symbol being prepared Close professional standard.

Detailed description of the invention

Fig. 1 is in a preferred embodiment of the present invention using grass class plant as the joint process of raw material Figure.

The aspect graph of fiber in the slurry that Fig. 2 is prepared for embodiment 1.

Fig. 3 is the drainage rate figure for the slurry that embodiment 1 is prepared.

Specific embodiment

[raw materials and reagents]

Sodium hydroxide described in the present embodiment is the raw material of industry that concentration is more than or equal to 99.9%；

Hydrogen peroxide described in the present embodiment is the raw material of industry that concentration is more than or equal to 50.0%；

Grass class plant described in the present embodiment is selected from dry straw and cotton stalk.

[instrument and equipment]

No. 1 reactor tank, No. 2 reactor tanks, No. 3 reactor tanks and No. 4 reactor tanks in the present embodiment are top with observation Window, periphery have the reaction unit of rock wool layer；No. 1 reactor tank, No. 2 reactor tanks and No. 3 reactor tanks volume (or processing energy Power) successively decrease.

No. 1 press master, No. 2 press masters, No. 3 press masters and No. 4 press masters in the present embodiment are the shove of power decay Machine.

[characterization of slurry and its paper being prepared and cardboard]

1. slurry characterizes

Slurry surveys unscreened yield after screening, and screened stock carries out chemical composition analysis and pulp property analysis respectively:

(1) chemical composition analysis is carried out after Benzene-ethanol extraction；

(2) it is discongested with standard dissociation device, beating degree is surveyed in sampling, carries out fibre analysis and size performance analysis.

1.1 screening

(1) laboratory apparatus: rotary strainer

(2) experimental method: thick slurry is screened after wet pulp dissociation device is discongested with rotary strainer, screen slot 0.2mm.

1.2 fibre morphology

(1) laboratory apparatus: XWY-VII fiber instrument

(2) experimental method: optical microscopy is taken pictures

1.3 chemical composition analysis

(1) laboratory apparatus: Soxhlet extractor, holocellulose analyzer, furfural distilling apparatus etc.

(2) experimental method:

The measurement of 10741 paper pulp alcohol-benzene extractive of GB/T

The measurement of 2677.10 paper making raw material holocellulose content of GB/T

The measurement of 745 paper pulp pentosan of GB/T

747 paper pulp acid of GB/T does not allow the measurement of lignin

1.4 slurry drainage rates

(1) laboratory apparatus: DFS-03 type dynamic drainage instrument

(2) experimental method: taking the slurry of 0.5% concentration of 1000mL to be added in dynamic drainage instrument, opens stirring, metering filter Time used in 500g filtrate out.

2. paper performance is analyzed:

(1) laboratory apparatus: balance, whiteness instrument, tensile test instrument, bursting strength instrument, folding strength instrument etc.

(2) experimental method:

451.2 paper of GB/T and the quantitative measurement of cardboard

The measurement of GB/T 451.3 paper and calliper

Measurement diffusion-normal beam technique of 7974 paper of GB/T, cardboard and brightness of pulp (whiteness)

The measurement (diffusing reflection method) of 1543 paper of GB/T and cardboard opacity (paper backing)

The measurement of GB/T 12914 paper and cardboard tensile strength

The measurement of 454 paper bursting strength of GB/T

The measurement of GB/T 455 paper and cardboard tearability

The measurement of GB/T 457 paper and cardboard folding strength

Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention Rather than it limits the scope of the invention.Furthermore, it is to be understood that after having read documented content of the invention, this field skill Art personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within limited range of the present invention.

In the description of the present invention, it should be noted that term " first ", " second ", " third ", " the 4th ", " No. 1 ", " No. 2 ", " No. 3 ", " No. 4 " etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

Embodiment 1

One, grass class plant --- straw is that raw material prepares high-grade paper

Dry straw is selected, removal of impurities dedusting crushes, wherein having a horn-like dedusting dress in the entrance of pulverizer It sets, there are two horn-like dust-extraction units beside feed bin feed inlet screw rod, and the crushing is that raw material is broken into 2-3 centimetres Section material, sieving separating obtain pulping raw material, are stored in feed bin；

By 1 ton of above-mentioned pulping raw material --- straw is added in No. 1 reactor tank in such a way that screw rod feeds, use 3 tons of clear water and/or recycle-water, 62kg hydrogen peroxide and 62kg sodium hydroxide are added to No. 1 instead by identical feed way simultaneously It answers in tank, stirs evenly, the pH of No. 1 reactor tank mixed material is kept to be more than or equal to 12；Due to softening the spontaneous thermal phenomenon of reaction, When starting reaction, the temperature in No. 1 reactor tank can achieve 90-100 DEG C, even higher (other than softening exothermic heat of reaction, spiral Also can heat in bar feeding process), with the extension of sofening treatment time, the temperature in No. 1 reactor tank is maintained at 70-90 DEG C； The softening degree that mixed material in softening process is observed by watch window, adjusts the time of sofening treatment, general sofening treatment For 70-120min, and the pH that the mixed material of No. 1 reactor tank is discharged is made to be 9-10；

By the mixed material after above-mentioned sofening treatment, it is sent into No. 1 press master, separates in such a way that screw rod feeds To the first shove mixed material and the first shove water；Pulping raw material of the first shove water as wrapping paper；It adopts in a like fashion, By the first shove mixed material according to its dry and wet degree, selection is added a small amount of clear water or recycle-water, is sent into No. 2 press masters, separates Obtain the second shove mixed material and the second shove water；Proper amount of clear water and/recycle-water is added in second shove mixed material, is sent into In No. 3 press masters, isolated third shove mixed material and third shove water；System of the second shove water as wrapping paper Raw material is starched, the third shove water is reused as recycle-water；

In such a way that screw rod feeds, No. 2 reactor tanks are added in above-mentioned third shove mixed material, use is identical Mode, by water, sodium hydroxide, hydrogen peroxide is added in No. 2 reactor tanks, and wherein the mass ratio of water and pulping raw material is 1:3, hydrogen The mass ratio of sodium oxide molybdena and hydrogen peroxide is 1:1, and with No. 1 reactor tank ratio, the drug dose is few, and is mixed according to third shove The softening degree of material, adjustment dosing need to add if softening is bad, and the additional amount of medicament will guarantee in No. 2 reactor tanks Mixed material pH be 10-12；Due to the spontaneous thermal phenomenon of softening reaction, the temperature in No. 2 reactor tanks is maintained at 70-90 ℃；The softening degree of mixed material in softening process is observed by watch window, adjusts the sofening treatment time, general sofening treatment 70min or more, and the pH that No. 2 reactor tank mixed materials are discharged is made to be 7-9；If the pH of the mixed material of No. 2 reactor tanks is discharged Greater than 9, then the pH of mixed material is adjusted close to the position acid adding of No. 2 reactor tank discharge ports in No. 2 reactor tanks discharging screw rods, is made It is down between 7-9, enters back into No. 4 press masters and carries out water squeezing processing；

Said mixture material is sent into No. 4 press masters in such a way that screw rod feeds, obtains the 4th shove mixture Material and the 4th shove water, and the pH that the 4th shove mixed material is discharged is made to be 6.5-7；If the No. 4 press masters are discharged the 4th squeezes The pH of pulp mixture material is lower than 6.5, then a small amount of peroxide is added in the position that No. 4 press masters discharging screw rods squeeze out material mouths close to 4 Change hydrogen and sodium hydroxide, it is ensured that the pH of mixed material is 6.5-7；If pH is higher than 7, a small amount of acid is added；4th shove water conduct Recycle-water reuses.

By the 4th above-mentioned shove mixed material and 125kg hydrogen peroxide bleaching, sent in such a way that screw rod feeds Enter in highly concentrated mill, due to spontaneous thermal phenomenon during the grinding process, the temperature of the high consistency refining is up to 90 DEG C or more；Ground Cheng Zhong can be added clear water according to the dry and wet situation of the 4th shove mixed material, mill is avoided material overdrying or part occur Phenomena such as high temperature；

Said mixture material is sent into No. 3 reactor tanks in such a way that screw rod feeds；Bleaching 70-120min； The temperature of No. 3 reactor tanks is 70-90 DEG C；The mixed material that No. 3 reactor tanks are discharged is high-grade paper finished product slurry, pH For 7-7.5.

Two, wrapping paper preparation process

The the first shove water and the second shove water recycled in above-mentioned high-grade paper technique staticly settles in the first sedimentation tank To dry matter, takes 1 ton of dry matter to be stirred and mix in the second sedimentation basin with the first shove water and the second shove water, obtain To mixed material, the dosage of the first shove water and the second shove water makes the dry matter complete wetting in a liquid, and liquid level is rigid Dry matter is covered, and reaches the degree that material does not drip in the hand, probably about needs 1.2 tons of shove water, at this time mixed material pH Value is 10.5 or so；

Add NaOH further to adjust pH value up to 13, and carry out cold soaking, the time of cold soaking is 24 hours；Cold soaking temperature is 20 ℃；

Mixed material after cold soaking is pumped in No. 5 press masters and carries out shove, obtains high consistency stock and the 5th shove water； Recycle the 5th shove water；

The high consistency stock is subjected to defibrination in high-density paste mill, the defibrination process generates huge heat, so that high Dense mill temperature is up to 90 DEG C；

By the slurry after the grinding with screw rod feeding into reactor tank, the reactor tank is provided with rock wool heat-preservation layer, The heat generated during defibrination to the high consistency stock is kept the temperature, so that slurry maintains the temperature at 70 DEG C or more, even Up to 90 DEG C.In reactor tank after insulation reaction 70 minutes, reaction paper pulp is obtained；

The reaction paper pulp is carried out plus acid for adjusting pH value makes up to 7, obtains about 0.8 ton of wrapping paper finished product paper pulp.

Three, the preparation process of foliar fertilizer

The 5th shove water of 1 ton of above-mentioned acquisition is extracted as black liquid；The pH of the black liquor is 10-12, water content It is 40% or less.Strain liquid is added according to the amount of black liquor volume 1/ (20-25) to stir evenly, the strain liquid contains lichens gemma Bacillus, wax bacillus and bacillus pumilus, and every milliliter contains 15~2,500,000,000 active bacterias；Aerobic fermentation at normal temperature 7 days, temperature can be increased to 50 DEG C during the fermentation, after the mixture of above-mentioned inoculation strain liquid is stood 4 days, continue after casting It ferments again, stands 3 days, the mix products after being fermented, the pH of the mix products after the fermentation is 8-10；

Into the mix products after above-mentioned fermentation, the humic acid of the quality such as addition, is prepared mixed material；Then it is added With the nutrient source (nitrogen, phosphorus and potassium) of the quality such as humic acid, foliar fertilizer is prepared after mixing evenly.Four, result and analysis

The rice straw pulp that above-described embodiment 1 is prepared is sent to China National Pulp & Paper Research Institute and detects its performance.

By screening it can be concluded that the unscreened yield of the top grade paper slurry is 99.45%.

Fig. 2 gives the aspect graph of fiber in the slurry that embodiment 1 is prepared.As seen from the figure, the present invention is prepared Slurry in contain tiny fiber, and the content of non-fibrous material is less.Illustrate that pulping yield of the invention is high.

Table 1 is the chemical composition analysis result for the slurry that embodiment 1 is prepared

Ingredient	Unit
			Holocellulose	%	88.05
Poly-pentose	%	6.23
			Acid-insoluble lignin	%	2.48

From table 1 it follows that the main component holocellulose in the slurry that the embodiment of the present invention 1 is prepared is 88.05%, the content of acid-insoluble lignin is only 2.48%；Illustrate to prepare using the technique of the embodiment of the present invention 1, be prepared Content of cellulose in slurry is higher, and lower to the useless lignin of slurry, and only 2.48%.

Fig. 3 is the drainage rate figure for the slurry that embodiment 1 is prepared, it can be seen from the figure that the drainage speed of the slurry Degree is 134s/500g.

Table 2 is the paper test result for the slurry preparation being prepared by embodiment 1

Index	As a result
		Quantitative (g/m2)	63.4
Thickness (μm)	106
		Tightness (g/cm3)	0.60
Whiteness (%)	37.16
		Opacity (%)	97.61
Tensile strength (Nm/g)	73.4
		Elongation (%)	2.91
Burst index (kPam2/g)	4.78
		Fracture indices (mNm2/g)	4.43
Folding (secondary)	527

From Table 2, it can be seen that the paper being prepared by the slurry of the embodiment of the present invention 1 is in tensile strength, resistance to broken finger The aspect of performance such as number, tear index are all very excellent.

Content of humic acid >=8% that the foliar fertilizer that this method is prepared complies with the national standard requirements, simple substance microelement The sum of >=6%.The foliar fertilizer has the characteristics that with strong points, dosage is few, effect is obvious.Can effectively avoid nutrient in the soil by Solidification or conversion, and reduce fertilizer efficiency.

More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention Within the scope of shield.

Claims (8)

1. a kind of using grass class plant as the joint preparation process of raw material comprising following steps:

(1) preparation of high-grade paper slurry

(1.1) grass class plant material is pre-processed, obtains pulping raw material, is stored in feed bin；

(1.2) pulping raw material and the medicament mixing come out from feed bin, carries out first time sofening treatment；

(1.3) first time water squeezing processing is carried out to the mixed material after the first time sofening treatment of step (1.2), obtains first and squeezes Pulp mixture material and the first shove water；

(1.4) it is optionally added into water and/or recycle-water into the first shove mixed material of step (1.3), carries out second and squeezes Water process obtains the second shove mixed material and the second shove water；

(1.5) water and/or recycle-water are added into the second shove mixed material of step (1.4), carries out third time water squeezing processing, Obtain third shove mixed material and third shove water；

(1.6) the third shove mixed material of step (1.5) and medicament are mixed, carries out second of sofening treatment；

(1.7) mixed material after second of sofening treatment of step (1.6) is optionally added into alkali or its pH of acid adjusting is laggard The 4th water squeezing of row processing, obtains the 4th shove material and the 4th shove water；

(1.8) by the 4th shove mixed material of step (1.7) be optionally added into alkali or acid adjust its pH after, be added bleaching agent and Optionally clear water carries out highly concentrated mill defibrination, obtains grinding slurry；

(1.9) grinding slurry that highly concentrated mill is discharged in step (1.8) is subjected to bleaching, obtains high-grade paper slurry；

(2) preparation of wrapping paper slurry

(2.1) it staticly settles the first shove water that step (1.3) and step (1.4) obtain and the second shove water to obtain dry Matter, the dry matter are optionally added into above-mentioned pulping raw material, and the shove water stirring obtained with step (1.3) and step (1.4) is mixed It closes, obtains mixed material；

(2.2) plus basic agent adjusts pH value and up to 13 or more and carries out cold soaking；

(2.3) mixed material after the cold soaking of step (2.2) is subjected to shove processing, obtains shove mixed material and the 5th shove Water；

(2.4) the shove mixed material of step (2.3) is subjected to defibrination in high-density paste mill；

(2.5) slurry after the grinding of step (2.4) is reacted, obtains reaction paper pulp；

(2.6) the reaction paper pulp of step (2.5) is carried out plus acid for adjusting pH value is to 7~7.5, obtain wrapping paper slurry；

(3) preparation of foliar fertilizer

(3.1) the 5th shove water of extraction step (2.3)；

(3.2) strain liquid is added, carries out fermentation reaction, the mix products after being fermented；

(3.3) into the mix products of step (3.2) be added etc. quality humic acid, mixed material is prepared；

(3.4) nutrient source is added into the mixed material of step (3.3), foliar fertilizer is prepared.

2. technique according to claim 1, which is characterized in that

In the preparation of the high-grade paper slurry of step (1):

In step (1.2), the first time sofening treatment carries out in No. 1 reactor tank；In step (1.3), described first Secondary water squeezing processing carries out in No. 1 press master；In step (1.4), second of water squeezing processing in No. 2 press masters into Row；In step (1.5), the third time water squeezing processing carries out in No. 3 press masters；In step (1.6), described second Sofening treatment carries out in No. 2 reactor tanks；In step (1.7), the 4th water squeezing processing carries out in No. 4 press masters； In step (1.9), the bleaching carries out in No. 3 reactor tanks；

The reactor tank is that top has watch window, and periphery has the reactor tank of insulating layer；No. 1 reactor tank, No. 2 reactions Tank and the volume (or processing capacity) of No. 3 reactor tanks successively successively decrease；The charging and discharging of the reactor tank are squeezed by screw rod What mode out carried out；

No. 1 press master, No. 2 press masters, No. 3 press masters and No. 4 press masters are the press master that power successively successively decreases；It is described The charging and discharging of press master are carried out in such a way that screw rod squeezes out.

In the preparation of the wrapping paper slurry of step (2):

The mixing of step (2.1) and the cold soaking of step (2.2) carry out in same reactor, such as sedimentation basin or reaction Tank, or carried out in different reactor；

In step (2.3), the shove processing carries out in No. 5 press masters；

In step (2.5), the reaction carries out in No. 4 reactor tanks.

Preferably, in step (2.3), the Manners of Delivery when mixed material after the cold soaking is sent into No. 5 press masters is pump It send；In step (2.5), the reactor tank is that top has watch window, and periphery has the reactor tank of insulating layer.

3. technique according to claim 1 or 2, which is characterized in that

In step (1.2), the addition of the medicament is so that the pH of the mixed material of No. 1 reactor tank is more than or equal to 12；Control row The pH of the mixed material of No. 1 reactor tank is 9-10 out；

In step (1.6), medicament addition so that the mixed material of No. 2 reactor tanks pH be 10-12, preferably 11, control row The pH of the mixed material of No. 2 reactor tanks is 7-9 out；

It is 6.5-7 by the pH of the 4th shove mixed material described in shove in step (1.7), for example, 7；

In step (1.9), the mixed material i.e. pH of finished pulp that No. 3 reactor tanks are discharged is 7-7.5.

Preferably, it in step (1.7), if the pH of the mixed material of No. 2 reactor tanks of discharge is greater than 9, discharges in No. 2 reactor tanks Screw rod adjusts the pH of mixed material close to the position acid adding of No. 2 reactor tank discharge ports, down between 7-9, entering back into 4 Water squeezing processing is carried out in number press master；

Preferably, in step (1.8), if the pH of the 4th shove mixed material of No. 4 press masters of discharge is lower than 6.5, at No. 4 A small amount of alkali and bleaching agent, preferably hydrogen peroxide and sodium hydroxide is added in the position that press master discharging screw rod squeezes out material mouths close to 4, Ensure that the pH of mixed material is 6.5-7；If pH is higher than 7, a small amount of acid is added.

Preferably, in step (2.1), the pH value of mixed material is made from the shove water of step (1.3) and step (1.4) More than or equal to 10.

Preferably, in step (3.1), the pH of the black liquor is more than or equal to 10, such as pH is 10-12；

Preferably, in step (3.2), the pH of the mix products after the fermentation is 8-10.

4. technique according to any one of claim 1-3, which is characterized in that

In step (1.2), the medicament includes water, sodium hydroxide and hydrogen peroxide, and water can be clear water or recycle-water or two Person's combination；It is preferred that the medicament is made of clear water and/or recycle-water, sodium hydroxide and hydrogen peroxide；

In step (1.6), the medicament includes water, sodium hydroxide and hydrogen peroxide, water can be clear water or recycle-water or The two combination；It is preferred that the medicament is made of clear water and/or recycle-water, sodium hydroxide and hydrogen peroxide；

In step (1.8), the bleaching agent is hydrogen peroxide.

Preferably, in step (2.2), the basic agent is sodium hydroxide.

Preferably, in step (3.2), the strain liquid contains bacillus licheniformis, wax bacillus and short and small gemma Bacillus, and every milliliter contains 15~2,500,000,000 active bacterias.

5. technique described in any one of -4 according to claim 1, which is characterized in that

In step (1.2), the pulping raw material: clear water and/or recycle-water in medicament: sodium hydroxide: the quality of hydrogen peroxide Than for 100:300-600:5-10:5-10, for example, 100:300:6.2:6.2；

In step (1.6), the mass ratio of clear water and/or recycle-water is 100:300-600 in the pulping raw material and medicament；Institute The mass ratio for stating sodium hydroxide and hydrogen peroxide is 1:0.9~1.1, for example, 1:1；

In step (1.6), the mass ratio of the pulping raw material and sodium hydroxide and hydrogen peroxide is according to third shove mixture The softening degree of material adjusts；If bating effect is bad, need to add sodium hydroxide and hydrogen peroxide；Sodium hydroxide and peroxide simultaneously Change hydrogen additional amount to guarantee the mixed material in No. 2 reactor tanks pH be 10-12, for example, 11；

In step (1.8), the mass ratio of the pulping raw material and bleaching agent is 8:1.

Preferably, in step (2.1), the weight of liquid and the dry matter and optionally pulping raw material in the mixed material Ratio is 120%~150%, the addition of the further preferred shove water so that the dry matter complete wetting in a liquid, Liquid level just covers dry matter, and reaches the degree that material does not drip in the hand.

Preferably, in step (3.4), the additional amount of the nutrient source is identical as humic acid.

6. technique according to any one of claims 1-5, which is characterized in that

In step (1.2), the time of the first time sofening treatment is for 70 minutes or more or more long, such as 120min；

In step (1.6), the time of second of sofening treatment is for 70min or more or more long, such as 120min；It is preferred that The reaction time is controlled by the pH of the mixed material of detection No. 2 reactor tanks of discharge, the pH is 7-9；

In step (1.9), the time of the bleaching is for 70 minutes or more or more long, such as 120min.

Preferably, in step (2.5), the reaction time is 70 minutes or more, preferably 70-120 minutes.

Preferably, in step (3.2), time of the fermentation reaction is -15 days 3 days, such as 7 days.

7. technique according to claim 1 to 6, which is characterized in that

In step (1.2), when starting reaction, the temperature in No. 1 reactor tank can achieve 90-100 DEG C, or even to 100 DEG C or more；The temperature of final No. 1 reactor tank is maintained at 70-90 DEG C.

In step (1.6), the temperature of second of sofening treatment is maintained at 70-90 DEG C；

In step (1.8), the temperature of the high consistency refining is 80 DEG C or more, preferably 90-100 DEG C；

In step (1.9), the temperature of the bleaching is 70-90 DEG C.

Preferably, in step (2.2), the time of the cold soaking is 24 hours or more, for example, being 24 hours~48 hours；It is cold Soaking temperature is the non-icing state of mixed material to room temperature, preferably 15~25 DEG C, for example, being 20 DEG C；

Preferably, in step (2.4), the process of lapping generates high heat, so that the temperature of mixed slurry is 80 DEG C or more, Such as 80-100 DEG C, preferably 90-100 DEG C.

Preferably, in step (2.5), the reaction temperature is 70~90 DEG C, preferably 90 DEG C.

Preferably, in step (3.2), the fermentation carries out at normal temperature, and generation heat can make temperature in fermentation process Reach 50 DEG C, such as 20-50 DEG C.

8. technique described in any one of -7 according to claim 1, which is characterized in that

In step (1.3), raw material of the first shove water as wrapping paper slurry；

In step (1.4), raw material of the second shove water as wrapping paper slurry；

In step (1.5), the third shove water is back to use in No. 1 reactor tank as recycle-water；

In step (1.7), the 4th shove water is as recycle-water reuse to No. 1 reactor tank and/or No. 2 reactor tanks.

In step (2.3), the 5th shove water prepares raw material as foliar fertilizer.