CN101921572B - Method for making amino albumin powder capable of capturing formaldehyde - Google Patents
Method for making amino albumin powder capable of capturing formaldehyde Download PDFInfo
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- CN101921572B CN101921572B CN2010102525383A CN201010252538A CN101921572B CN 101921572 B CN101921572 B CN 101921572B CN 2010102525383 A CN2010102525383 A CN 2010102525383A CN 201010252538 A CN201010252538 A CN 201010252538A CN 101921572 B CN101921572 B CN 101921572B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a method for making amino albumin powder capable of capturing formaldehyde, which is characterized by comprising the steps of: cleaning, softening, hydrolyzing, neutralizing and sedimenting, dewatering and drying, crushing, ammonifying, preparing albumin powder, packaging, treating sewage and the like. An intermediate obtained in the emmonifying step is amino albumin which does not contain formaldehyde and has the function of capturing the formaldehyde and wide application range, therefore, the amino albumin can be used for replacing an aldehyde adhesive for preparing various boards, and the prepared boards have high strength and good weather resistance. The final product is the amino albumin powder which has the advantages of easy package, easy transportation, storage resistance, no degeneration, less consumption and the like except for the functions of the amino albumin. And the used raw materials are waste animal furs and hoof shells. The invention has the advantages of easy obtaining of the raw materials, low cost, simple process, and no pollutant emission during the production, and is beneficial to the environment protection.
Description
Technical field
The present invention relates to the preparation of glue, particularly a kind of is the method for making amino albumin powder that the raw material manufacturing can be caught formaldehyde with the discarded hair of various livestock and poultry, coffin.
Background technology
Over more than 100 year, because the application of urea-formaldehyde glue, phenolic glue, melamino-formaldehyde glue, the formaldehyde environmental pollution is more and more serious.Diseases such as formaldehyde can cause human body respiration difficulty, swelling and sore throat, drop tears, serious formaldehyde poisoning can cause people's cancer stricken, white blood disease etc.Formaldehyde is significantly to human harm, but in response to still replacing at present with extensive, cost is low etc.China and world's majority state are all forbidden the formaldehyde discharging that exceeds standard.The discarded hair of a large amount of animals, coffin, as: major ingredient such as chicken feather, duck goose coarse wool, tannery's useless poultry hair, pig hair, pig, cattle and sheep coffin are scleroprotein, are the space three-dimensional three-dimensional arrangements that is combined into by amino acid.The very early useful pork skin system glue of China is with the tradition of animal blood meal glue.Pork skin and blood meal all are that protein also is combined into by amino acid.Chinese invention patent Granted publication CN1267502C discloses " a kind of protein film and preparation method thereof ", and this patent system protein film midbody is an albumin glue.Though be albumin glue, it is poor that it catches the formaldehyde function; Its preparation method is to adopt enzyme process, exists long reaction time, and reaction conditions is difficult to shortcomings such as control.
Summary of the invention
The objective of the invention is, provide a kind of cost low, technology is simple, does not have emissions in the production process, is beneficial to environment protection, can catch the method for making amino albumin powder of formaldehyde.
Realize that the technical scheme that the object of the invention is taked is: a kind of method for making amino albumin powder that can catch formaldehyde, it is characterized in that: it comprises the steps:
(1) clean: with discarded livestock and poultry hair, coffin is raw material, washes dirt, impurity on discarded livestock and poultry hair, the coffin off with clear water, and centrifuge dehydration dries, and gets scoured wool, coffin;
(2) softening: with the NaOH aqueous solution soaking of 1/2 usefulness 0.8-4% of step (1) gained 12-48 hour, make mao hoof softening powdered to twisting with the fingers with hand, centrifuge dripping must soften hair, coffin, and alkali lye reclaims and repeats usefulness;
(3) hydrolysis: in the chuck enamel reaction still, inject the NaOH aqueous solution of 0.8-4%, be heated to 90-100 ℃, start stirring, in still, drop into step (1) gained not remollescent 1/2 scoured wool, coffin; Insulation heating, stirred 20-60 minute, treat hair in the still, coffin 80% dissolving after, in still, drop into the softening hair of step (2) gained, coffin again; Off-response still batching hole continued insulated and stirred 15-60 minute, to the off-bottom of hair coffin; Form thickness sodium base albumin glue solution, stop heating, stir, room temperature is placed and is cooled to below 80 ℃; Through 20 order stainless steel sifts, blowing is gone in the neutralization precipitation groove, places cooling and causes room temperature; Take not reaction impurities away from sieve, this process proportioning raw materials is hair coffin raw material: the NaOH aqueous solution=1: 2.5-4;
(4) neutralization precipitation: under agitation condition; Drenching into content to settling bath is the technical hydrochloric acid of 30-36%, to a large amount of throw outs that suspend of reaction solution generation, when there is clarifying liquid on the reaction solution upper strata; Stop to drench technical hydrochloric acid; The pH value of reaction solution was placed deposition 12-14 hour in the 2.5-4.5 scope at this moment, and the throw out of generation is an acidic hydrolysis protein;
(5) dehydrate: open the settling bath valve, emit waste water and supply to clean raw material usefulness, send into pressure filter to throw out; Further dehydration gets the acidic hydrolysis meringue, sends into dryer to this acidic hydrolysis meringue again; Under 105-115 ℃ of condition, dry, get exsiccant X 1000 cake;
(6) pulverize: the handy kibbler of step (5), powder becomes 20 order powder, and getting outward appearance is the faint yellow mobile acidic albumen powder that has;
(7) ammonification: pour step (6) gained in the funnel into, the funnel end opening is to large-scale meat mincer opening for feed, and the meat mincer opening for feed is established a stainless valve in addition; Valve connects tank used for storing ammonia, starting meat mincer simultaneously, puts into step (6) gained from funnel; Ammoniacal liquor with 20-28%; The blowing ratio is: the acidic hydrolysis protein powder: ammoniacal liquor=1: 1-1.5 under violent stirring, kneading condition, gets the tawny amino albumin from the meat mincer discharge port; Room temperature is placed slaking 24 hours, gets the amino albumin that thick tawny can be caught formaldehyde;
(8) rubber powder preparation: use the single spreading machine, is coated onto step (7) gained on the polyester film,, under 105-115 ℃ of condition, dry through drying shed, must the tawny film, pulverize faint yellow amino albumin powder;
(9) packing: weigh step (8) gained, be packaged into every bag of 25Kg, mark lot number, the date manufactured, supply the making sheet application with the waterproof plastic woven bag of belt material film.
(10) WWT: mechanical impurity in filtering scouring of wool, the coffin waste water; Mix scouring of wool, coffin waste water after filtering with neutralization precipitation waste water, transfer to PH3.5-4.5 with technical hydrochloric acid again and put into settling tank, then the blood in the waste water, ight soil, solvability protein; All precipitate; Leach clear water with pressure filter, recycling, filter cake dries the back and is organic fertilizer.
NaOH among the present invention, ammoniacal liquor, technical hydrochloric acid can use the general industry raw material, and enamel still, whizzer, kibbler, meat mincer, lass lining steel tank etc. are general chemical equipment, need not special.
A kind of advantage applies that can catch the method for making amino albumin powder of formaldehyde of the present invention exists:
1. step (7) gained amino albumin is of many uses, can substitute the various sheet materials of the gluing system of aldehyde, comprises wood veneer, wad, core-board or the like.The various sheet materials that make have advantages such as intensity height, weathering resistance are good, meet the relevant quality standard of country fully.Especially the amino albumin with manufacturing of the present invention does not contain formaldehyde, does not contain other pollutent yet, can reduce formaldehyde pollution in the production, for operator create good working environment, and the formaldehydeless discharging of the sheet material of processing, and the seizure function of absorbing formaldehyde is arranged.
2. step (8) gained amino albumin powder, except that having the amino albumin function, outstanding advantage is: be prone to packing, be prone to transportation, anti-storage, never degenerate, consumption such as lacks at advantage.Present each plate mill all will add the flour of 15-30% to increase the aldehyde adhesive capacity in glue with aldehyde glue the time.The rubber powder that the present invention makes adds in the aldehyde glue, can play the effect of flour fully.More outstanding characteristics are that consumption is few, as long as in aldehyde glue, add the viscosifying action that the 1/3-1/2 of flour consumption just plays flour, if in aldehyde glue, add the amino albumin powder of 40-50%, can make the formaldehydeless discharging of the sheet material that makes.The 2nd, the free formaldehyde in the aldehyde glue is absorbed, has caught by amino albumin, has significantly reduced aldehyde glue formaldehyde emissions, so that do not arrange formaldehyde, plays the excellent environment-protective benefit.The 3rd, behind amino albumin powder mixed aldehyde glue, need not change the production technique and the operational condition of plate mill.
3. livestock and poultry hair, coffin are discarded in the raw materials used employing of the present invention, and its abundant raw material is easy to get, and cost is low, and technology is simple, does not have emissions in the production, does not have emissions in the production process, is beneficial to environment protection.
Embodiment
Below in conjunction with embodiment that provides and Test Example, the present invention is further described.The equivalence change of doing with technical scheme of the present invention all belongs in the protection domain of the present invention.
Embodiment 1, makes raw material with chicken feather and makes amino albumin powder:
Select 500 kilograms of chicken feathers to make raw material and make amino albumin powder, its step is following:
(1) in the metal trough of 5000 liter bands stirring lass lining steel, inject 4000 premium on currency, drop into 500 kilograms of chicken feathers, slowly stir 10-30 rev/min, waste water from washing wool is put into waste liquid tank, emits impurity such as sandy soil from arranging husky hole, the chicken feather centrifuge dripping, must clean chicken feather.
(2) 1/2 of step (1) gained is immersed in the 0.8%NaOH aqueous solution, soaking at room temperature 48 hours makes the deliquescing of hair stalk, and hand is twisted with the fingers into thread.The importing whizzer dries, and the buck recycling that throws away must be softened chicken feather.
(3) the NaOH aqueous solution 1300 liters of injection 0.8% in 2000 liter chuck enamel reaction stills, steam-heated cal(l)andria is started stirring to 90-100 ℃.Drop into not remollescent 1/2 chicken feather of step (1) gained, insulated and stirred is dissolved 80% chicken feather stalk, needs 20 minutes.Drop into the softening chicken feather of step (2) gained immediately.Close batching hole, continued insulated and stirred 20 minutes, whole chicken feathers are dissolved, the reaction system thickness.Room temperature is placed and is cooled to 70 ℃.Reactant is put into settling bath through 20 order stainless steel sifts and is placed and to be cooled to room temperature, removes on the sieve not reaction impurities, faint yellow thickness sodium base albumin glue solution.
(4) under agitation condition, drench into technical hydrochloric acid to settling bath, make reaction solution produce the throw out that suspends, when there is clarifying liquid on the reaction solution upper strata, stop to drench acid, continue to stir 10 minutes.This moment, the pH value of reaction was 3.0.Placed deposition 12 hours, the upper strata is a decorating film in the system, and lower floor is a clear water.Put clear water and go into wastewater trough, get pale yellow colored solid shape sour water albumen piece.
(5) send into pressure filter to step (4) gained, further dehydration gets the acidic hydrolysis meringue, sends into dryer to this acidic hydrolysis meringue again, under 105-115 ℃ of condition, dries, and gets exsiccant X 1000 cake.
(6) be ground into 20 orders to the handy beater disintegrating machine of step (5), get the acidic hydrolysis protein powder, be faint yellow mobile powder.
(7) pour step (6) gained in the funnel into, the funnel end opening is to large-scale meat mincer opening for feed, and the meat mincer opening for feed is established the stainless valve that is connected with tank used for storing ammonia in addition.Start meat mincer, put into the acidic hydrolysis protein powder, put 25% ammoniacal liquor simultaneously from funnel.The blowing ratio is: the acidic hydrolysis protein powder: ammoniacal liquor=1: 1.1, under the violent stirring condition, get the tawny amino albumin from the meat mincer discharge port, and place slaking 12 hours, get HV tawny amino albumin.
(8) be coated onto the handy single spreading machine of step (7) on the polyester film,, under 105-115 ℃ of condition, dry, get the tawny film, be ground into 20 order powderies to film with beater disintegrating machine, get amino albumin through drying shed.Product appearance: faint yellow, mobile powder.
(9) step (8) gained is weighed, altogether 495 kilograms of amino albumin powders, be packaged into every bag of 25Kg with the waterproof plastic woven bag of belt material film, indicate lot number, the date manufactured.Confession making sheet is used.
(10) WWT:, remove mechanical impuritys such as sandy soil, ight soil, weeds through flame filter press the waste water that step (1) produces.The water that leaches mixes with acid waste water in step (5) pressure filter at neutralizing well, transfers to PH4.5 with hydrochloric acid, puts into settling tank, and static 48 hours, blood and minimal amounts of dissolved albumen precipitation.Supernatant water is extracted out and is supplied scouring of wool usefulness, and muddy liquid leaches clear water with pressure filter at the bottom of the pond, repeats usefulness, and filter cake is an organic fertilizer.
Embodiment 2, make amino albumin with the useless ox hair of tannery:
Select the useless ox hair of 400 kilograms of tanneries to make amino albumin, its step is following:
(1) with 200 kilograms of useless ox hairs, immerse in the 2.5%NaOH aqueous solution, soaking at room temperature 48 hours, to the ox hair swelling, chap, deliquescing.Dry with whizzer, the buck recycling must be softened ox hair.
(2) the NaOH aqueous solution 1200 liters of injection 2.5% in 2000 liter chuck enamel reaction stills to 96-100 ℃, start stirring with the chuck steam-heated cal(l)andria.Drop into 200 kilograms in not softening ox hair, insulated and stirred to 80% ox hair dissolves.Step (1) gained is dropped in the still, close batching hole.Continue insulated and stirred, make that ox hair all dissolves in the still, solution presents yellowish-brown thickness state, and this process needs 50 minutes.Stop heating, continue to stir 20 minutes.Placement is cooled to 65 ℃, puts into settling bath through 20 order stainless steel sifts, removes on the sieve not reaction impurities, tawny thickness sodium base albumin glue.
(3) under agitation condition, drench into technical hydrochloric acid to settling bath, make reaction solution produce the throw out that suspends, when there is clarifying liquid on the reaction solution upper strata, stop to drench acid, continue to stir 10 minutes.This moment, the pH value of reaction was 3.5.Placed deposition 12 hours, the reactant layering, the upper strata is a blocks of solid, lower floor is a clear water.Put clear water and go into wastewater trough, get the solid noncohesive sour water albumen of the shape piece of tawny.
(4) send into pressure filter to step (3) gained, further dehydration gets the acidic hydrolysis meringue, sends into dryer to this acidic hydrolysis meringue again, under 105-115 ℃ of condition, dries, and gets exsiccant X 1000 cake.
(5) be ground into 20 orders to the handy beater disintegrating machine of step (4), get the acidic hydrolysis protein powder, be faint yellow mobile powder.
(6) pour step (5) gained in the funnel into, the funnel end opening is to large-scale meat mincer opening for feed, and the meat mincer opening for feed is put the stainless valve that is connected with tank used for storing ammonia in addition.Start meat mincer, put into the acidic hydrolysis protein powder, put into 20% ammoniacal liquor simultaneously from funnel.The blowing ratio is: the acidic hydrolysis protein powder: 20% ammoniacal liquor=1: 1.5, under the violent stirring condition, get the brown amino albumin from the meat mincer discharge port, and place slaking 12 hours, get HV brown amino albumin.
(7) with step (6) gained, inject big mouthful plastic tank, by 25 kilograms/barrel, weigh, sealing, gland, 780 kilograms of thickness amino albumins.
Annotate: useless ox hair is available from the Hebei Xinji, cleans when purchasing, drying, so need not clean.
Embodiment 3, make amino albumin powder with pork trotter shell:
Selecting 200 kilograms of pork trotter shells is that raw material is made amino albumin powder, and its step is following:
(1) with the impurity on the clear water flush away pork trotter shell, put sewage and enter the heavy pond of neutralization, reclaim usefulness again, take out pork trotter shell and dry, must clean pork trotter shell.
(2) 1/2 of step (1) gained is immersed in the 4%NaOH aqueous solution, soaking at room temperature 48 hours makes the coffin swelling, and deliquescing imports whizzer and dries, and the buck recycling that throws away must be softened coffin.
(3) in 1000 liter chuck enamel reaction stills, inject 4% the NaOH aqueous solution 600 liters, stir, steam heating, controlled temperature is at 96-100 ℃, with step (1) not remollescent 1/2 gained drop in the still; Be incubated 60 minutes, coffin 80% is dissolved, in still, drop into the softening coffin of step (2) gained again, off-response still batching hole; Continued insulated and stirred 60 minutes, to the off-bottom of hair coffin, reaction solution becomes the brown thickness gluey, forms thickness sodium base albumin glue solution; Stop heating, continue to stir 10 minutes, place and be cooled to 75 ℃, go into settling bath through 20 order stainless steel sift blowings; Placement is chilled to room temperature, removes sieve and goes up impurity, gets tawny thickness sodium base albumin glue.
(4) under agitation condition, drench into technical hydrochloric acid to settling bath, make reaction solution produce a large amount of throw outs that suspend, when there is clarifying liquid on the reaction solution upper strata, stop to drench acid, continue to stir 10 minutes.This moment, the pH value of reaction was 4.3.Placed deposition 24 hours, the reactant layering is emitted lower floor's clear water and is gone into the neutralization precipitation pond, gets the block acidic protein glue of tawny.
(5) dehydrate: open the settling bath valve, emit most of waste water and supply to clean raw material usefulness, send into pressure filter to throw out; Further dehydration gets the acidic hydrolysis meringue, sends into dryer to this acidic hydrolysis meringue again; Under 105-115 ℃ of condition, dry, get exsiccant X 1000 cake.
(6) pulverize: the handy kibbler of step (5), powder becomes 20 order powder, and getting outward appearance is the faint yellow mobile acidic albumen powder that has.
(7) pour step (6) gained in the funnel into, the funnel end opening is to large-scale meat mincer opening for feed, and the meat mincer opening for feed is put the stainless valve that is connected with tank used for storing ammonia in addition.Start meat mincer, put into the ammoniacal liquor of step (6) gained and 28% from funnel.The blowing ratio is: the acidic hydrolysis protein powder: 28% ammoniacal liquor=1: 1, under violent stirring, condition, get the brown amino albumin from the meat mincer discharge port, and room temperature was placed 24 hours, got thickness brown amino albumin.
(8) be coated onto the handy single spreading machine of step (7) on the polyester film,, under 105-115 ℃ of condition, dry, get the tawny film, be ground into 20 order powderies to film with beater disintegrating machine, get amino albumin through drying shed.Product appearance: faint yellow, mobile powdery.
(9) step (8) gained is weighed, altogether 185 kilograms of amino albumin powders, be packaged into every bag of 25Kg with the waterproof plastic woven bag of belt material film, indicate lot number, the date manufactured.
WWT is identical with embodiment 1.
Embodiment 1 gained amino albumin powder, send agricultural branch center, Jilin Province analytical test United Center Changchun, following to the product composition detected result:
Test Example 1: amino albumin powder composition application performance detects:
Survey report
NO2008038
Approval: Li Yueru audit: Song Guiru tabulation: Pan Weiqun
Annotate: so glue still do not have national standard, have to be by GB/T 6432-1994, forage standard detects.
Conclusion: testing 1 gained amino protein powder staple is protein, and is the protein of amino excess, and explaining has a considerable amount of unnecessary amino on the amino albumin molecular chain, and this unnecessary amino is used for catching absorption aldehyde.Product good water solubility, this rubber powder of susceptible of proof are prone to mix with various aldehyde glue, and nontoxicity.
Get 50 kilograms of embodiment 1 gained amino albumin powders, send Fengman District two guidance tape factories in Jilin by this factory existing production technique compacting wood veneer.Prescription is: use 15% amino albumin, substitute 30% flour, sneak in the urea-formaldehyde glue.Send Jilin Province product quality supervision and inspection institute product, assay is following:
Survey report
NO.QH-20090835 is totally 2 pages of page 1
Approval: Li Yunying audit: Zhang Linlin master's inspection: first favour monarch
Survey report
NO.QH-20090835 is totally 2 pages of page 2
Conclusion: sneak in the urea-formaldehyde glue with amino albumin powder, make that burst size of methanal reduces greatly in the product, not only less than the E of the 1.5mg/L of national standard
1Level also reaches five-star E
0Level (≤0.5).Use amino protein powder and urea-formaldehyde glue making sheet, need not reform mask-making technology, the production work environment obviously improves.
Test Example 2, amino albumin composition and application performance detect:
Composition detection: get embodiment 2 gained amino albumin 200g, send agricultural branch center, Jilin Province analytical test United Center Changchun, following to the product composition detected result:
Survey report
NO2008039
Approval: Li Yueru audit: Song Guiru tabulation: Pan Weiqun
Conclusion: the amino albumin staple is a protein, does not contain formaldehyde and toxic substance.
Application result detects: making sheet, embodiment 2 gained amino albumins, the step of also available embodiment 1 (7) gained comes to the same thing, evenly be coated onto on the plank skin, Amount of spread be slab heavy 25%, place and dried 4 hours.Cold pressing pressurize 24 hours with pressing machine.Get wood veneer, send Jilin Province product quality supervision and inspection institute this plate, assay is following:
Survey report
NO.QH-20090836 is totally 2 pages of page 1
Approval: Li Yan audit: Zhou Meiying master's inspection: Chunyang LI
Survey report
NO.QH-20090835 is totally 2 pages of page 2
Conclusion: substitute the gluing fibres sheet material that grafts of aldehyde with amino albumin, an index such as intensity is qualified, and outstanding advantage is formaldehydeless discharging, improves the production operation environment, has also reduced the pollution of formaldehyde to environment.Need reform the production technique of plate mill with the making sheet of this kind amino albumin, take to cold pressing.
Test Example 3, the amino albumin powder applying detection:
50 kilograms of embodiment 3 gained amino albumin powders, send woodwork factory of forestry bureau of battalion in Shulan City, Jilin Province, be main raw material with melamino-formaldehyde glue, by this factory's production technique compacting core-board.Making sheet prescription: melamino-formaldehyde glue: amino albumin=2: 1.Product send Jilin Province product quality supervision and inspection institute, and assay is following:
Survey report
NO.QH-20090836 is totally 2 pages of page 1
Approval: Li Yan audit: Zhou Lanying master's inspection: Chunyang LI
Survey report
NO.QH-20090835 is totally 2 pages of page 2
Conclusion: substitute flour with amino albumin powder and sneak in the melamino-formaldehyde glue, under the constant situation of all other indexs of product, the product burst size of methanal reduces greatly, not only less than the E of national standard 1.5mg/L
1Standard also makes the highest E of product National standard
0Level (≤0.5mg/L).The easy to operate advantage that does not change technology is arranged, receive and use producer's welcome, development prospect is extensive.
Test Example 4, the amino albumin powder applying detection:
100 kilograms of experiment 1 gained amino albumin powders, send Jilin Province and imperial forestry bureau fibre-board plant, by this factory's production technique, be raw material with the Phenol aldehyde resin, the compacting medium density fibre board (MDF).The making sheet prescription: phenolic glue: product quality supervision and inspection institute assay is following through Jilin Province for amino albumin=2: 1, product:
Survey report
NO.QH 2010023 is totally 2 pages of page 1
Approval: Li Yunying audit: Zhang Linlin master's inspection: first favour monarch
Survey report
NO.QH-2010023 is totally 2 pages of page 2
Conclusion: amino albumin powder and phenolic glue have good compatibility; Mix amino albumin with phenolic glue, under not change of mask-making technology condition, it is all qualified that product each item detects index; Outstanding advantage is that the product innovation burst size of methanal obviously reduces; To the protection environment, it is fabulous to reduce formaldehyde pollution effect, the production technique that do not change easy to operate.
Claims (1)
1. the method for making amino albumin powder that can catch formaldehyde, it is characterized in that: it comprises the steps:
(1) clean: with discarded livestock and poultry hair, coffin is raw material, washes dirt, impurity on discarded livestock and poultry hair, the coffin off with clear water, and centrifuge dehydration dries, and gets scoured wool, coffin;
(2) softening: with the NaOH aqueous solution soaking of 1/2 usefulness 0.8-4% of step (1) gained 12-48 hour, make mao hoof softening powdered to twisting with the fingers with hand, centrifuge dripping must soften hair, coffin, and alkali lye reclaims and repeats usefulness;
(3) hydrolysis: in the chuck enamel reaction still, inject the NaOH aqueous solution of 0.8-4%, be heated to 90-100 ℃, start stirring, in still, drop into step (1) gained not remollescent 1/2 scoured wool, coffin; Insulation heating, stirred 20-60 minute, treat hair in the still, coffin 80% dissolving after, in still, drop into the softening hair of step (2) gained, coffin again; Off-response still batching hole continued insulated and stirred 15-60 minute, to the off-bottom of hair coffin; Form thickness sodium base albumin glue solution, stop heating, stir, room temperature is placed and is cooled to below 80 ℃; Through 20 order stainless steel sifts, blowing is gone in the neutralization precipitation groove, places to be cooled to room temperature; Take not reaction impurities away from sieve, this process proportioning raw materials is hair coffin raw material: the NaOH aqueous solution=1: 2.5-4;
(4) neutralization precipitation: under agitation condition; Drenching into content to settling bath is the technical hydrochloric acid of 30-36%, to a large amount of throw outs that suspend of reaction solution generation, when there is clarifying liquid on the reaction solution upper strata; Stop to drench technical hydrochloric acid; The pH value of reaction solution was placed deposition 12-14 hour in the 2.5-4.5 scope at this moment, and the throw out of generation is an acidic hydrolysis protein;
(5) dehydrate: open the settling bath valve, emit waste water and supply to clean raw material usefulness, send into pressure filter to throw out; Further dehydration gets the acidic hydrolysis meringue, sends into dryer to this acidic hydrolysis meringue again; Under 105-115 ℃ of condition, dry, get exsiccant X 1000 cake;
(6) pulverize: use kibbler to step (5) gained exsiccant X 1000 cake, powder becomes 20 order powder, and getting outward appearance is the faint yellow mobile acidic albumen powder that has;
(7) ammonification: pour step (6) gained acidic albumen powder in the funnel into, the funnel end opening is to large-scale meat mincer opening for feed, and the meat mincer opening for feed is established a stainless valve in addition; Valve connects tank used for storing ammonia, starting meat mincer simultaneously, puts into step (6) gained from funnel; Ammoniacal liquor with 20-28%; The blowing ratio is: the acidic hydrolysis protein powder: ammoniacal liquor=1: 1-1.5 under violent stirring, kneading condition, gets the tawny amino albumin from the meat mincer discharge port; Room temperature is placed slaking 24 hours, gets the amino albumin that thick tawny can be caught formaldehyde;
(8) rubber powder preparation: use the single spreading machine, is coated onto step (7) gained amino albumin on the polyester film,, under 105-115 ℃ of condition, dry through drying shed, must the tawny film, pulverize faint yellow amino albumin powder;
(9) packing: weigh step (8) gained amino albumin powder, be packaged into every bag of 25Kg, mark lot number, the date manufactured, supply the making sheet application with the waterproof plastic woven bag of belt material film;
(10) WWT: mechanical impurity in filtering scouring of wool, the coffin waste water; Mix scouring of wool, coffin waste water after filtering with neutralization precipitation waste water, transfer to pH3.5-4.5 with technical hydrochloric acid again and put into settling tank, then the blood in the waste water, ight soil, solvability protein; All precipitate; Leach clear water with pressure filter, recycling, filter cake dries the back and is organic fertilizer.
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| CN2010102525383A CN101921572B (en) | 2010-08-10 | 2010-08-10 | Method for making amino albumin powder capable of capturing formaldehyde |
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| CN2010102525383A CN101921572B (en) | 2010-08-10 | 2010-08-10 | Method for making amino albumin powder capable of capturing formaldehyde |
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| CN102585725B (en) * | 2012-02-20 | 2013-08-14 | 常州大学 | Method for preparing slow-release free formaldehyde scavenger |
| CN106479411A (en) * | 2016-10-18 | 2017-03-08 | 耿志强 | For absorbing the glue preparation method of formaldehyde |
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| CN1063874A (en) * | 1991-02-07 | 1992-08-26 | 杭州肉类联合加工厂 | From poultry hair or coffin, extract the method for soluble keratin |
| JPH08165298A (en) * | 1994-12-09 | 1996-06-25 | Chokai Nobukazu | Production of water soluble protein |
| CN1267502C (en) * | 2004-10-31 | 2006-08-02 | 才景志 | Protein film and its preparation method |
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