CN101838943A - Knot energy-saving environment-friendly pulping method and equipment - Google Patents
Knot energy-saving environment-friendly pulping method and equipment Download PDFInfo
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- CN101838943A CN101838943A CN 201010217350 CN201010217350A CN101838943A CN 101838943 A CN101838943 A CN 101838943A CN 201010217350 CN201010217350 CN 201010217350 CN 201010217350 A CN201010217350 A CN 201010217350A CN 101838943 A CN101838943 A CN 101838943A
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Abstract
The invention discloses a knot energy-saving environment-friendly pulping method and equipment. The method comprises the following steps of: (1) washing a coarse pulp after steam boiling by using a vacuum pulp washer, depositing heavy impurities in a bottom tank of the vacuum pulp washer while washing the pulp, and putting the washed coarse pulp into a knot catcher to perform pulp-knot separation; (2) putting the separated knots into a rub-grinding silk separator, and rubbing and grinding the knots into fiber bundles; (3) adding a black liquor into the fiber bundles, controlling the fiber weight percentage concentration to be 3 to 5 percent, grinding the fiber bundles into a pulp material by using a pulping machine, and screening the pulp material by using a screening machine to select a good pulp; and (4) washing the good pulp by using 3 to 4 sections of pulp washers, extracting the black liquor in the pulp, and using the pulp for papermaking. The equipment for rubbing and grinding the knots into the fiber bundles is the rub-grinding silk separator. The method and the equipment have low energy consumption and less pollution to the environment, and the prepared paper pulp has good quality.
Description
Technical field
The present invention relates to a kind of pulping process and equipment, especially relate to a kind of pulping process and equipment that utilizes the knot that produces in the chemical pulping digestion process.
Background technology
Have knaur in the wood fiber raw material, it is more that especially middle path pulpwood contains the knaur quantum count.The timber of sub-pulpability of knaur and trunk part is different, on the one hand because the itself compact structure, form super thick and super large wood chip when chipping easily, on the other hand because knaur position lignin content height, wooden tight, also contain more resin in part softwood knaur, the more difficult well-done pulping of knaur in pulping digestion process becomes not steam and separates thing.The trunk part raw material cuts and also can produce some big and thick wood chips when in blocks, causes cooking liquor to permeate badly because its size surpasses routine, is difficult to the degree of cooking that reaches necessary, also can become not steam and separate thing.For above-mentioned reasons, in the chemical pulping digestion process, not all wood fiber raw material can both disposablely become slurry, will spray into spraying pot traditionally and contain not and to steam the slurry of separating thing and be called thick slurry.Not well-done knaur and degree of cooking deficiency form the material of bundle fiber, separating in the slurry screening process becomes joint slag or screening reject, to or jump the not well-done knaur sift out traditionally through knotter and be called knot, starch and the screening reject that the degree of cooking deficiency that pulp screen or screen centrifuge sift out forms bundle fiber is called slag.
Because raw materials quality, get the raw materials ready wood chip qualification rate, pulping process, type of stock and quality are different, knot is also different with the quantity that the slag slurry produces.External pulp mill's knot and slag slurry amount are generally 0.5～5% of thick slurry amount; Domestic generally higher.In recent years, because of the raising of boiling technology, equipment, the amount that domestic part chemical pulp factory's knot and slag slurry produce decreases, but still has 1～5%.Especially small dimension wood, side plate part producing producer how in using, knot and slag slurry generation are higher, become the difficult problem that output and quality improve in restriction enterprise.Rationally utilize these knots and slag slurry resource, will bring than large economy, social benefit.
To the processing of knot and slag slurry, following four kinds of modes are arranged roughly at present:
1, the slag slurry is made the wood pulp use behind defibrination;
2, replacing raw material to return after knot is collected boils;
3, burn as fuel behind the knot natural air drying;
4, mechanically handle after knot is collected and make paper pulp.
Slag is starched not to be suitable for back and is boiled, also easy pulping, and screening slag slurry generally is used for production true qualities wrapping paper more behind defibrination; Knot generally is to do that fuel uses or return and boil.If knot is burnt as fuel, can only utilize its calorific value, wasted timber resources.Boil if return, its yield is a little more than wood chip but fibre length is short than wood chip, intensity is low, will take bigger storage space simultaneously and make the certain production capacity of slurry factory loss, return and boil 5% knot and can make slurry factory production capacity loss about 7%, energy consumption obviously improves in the slurry factory production process.Above method knot also has cooking liquor and runs off in collection and storage process, causes the pollution to environment.If manufacture paper with pulp wrapping paper after knot is mechanically handled, can utilize the value of knot to greatest extent.Slag slurry is handled through defibrination, and the slurry that obtains can satisfy the requirement of production true qualities package paper, general factory, and all through to a certain degree washing, in the defibrination process, the bubble-related issues ratio that slurry produces is easier to solve the slag slurry.Yet knot very easily produces the broken end of a large amount of fibers when the defibrination size degradation, simultaneously, efficient is very low, the energy consumption height.
At present, wash riddler's preface and generally adopt sealing to wash the sieve production technology pulp mill, and slurry comes out to enter knotter from spraying pot, and knot effluxes, and slurry enters many wash engine washings again, enters pressurized screen after the washing again, and the slag slurry effluxes, and slurry enters subsequent handling again.Adopt and to remove joint earlier, Xi Di flow process again, the knot washing is insufficient, and in operation processes such as follow-up defibrination, foam is more, is difficult to handle, and brings difficulty to the utilization of knot.
Being used to handle the stranding grinding machine tool equipment that saves the slag slurry has multiple, the hammer mill that has commonly used is separated machine, squeezer, trough-style pulp beater, high concentration plate mill etc., it is similar with rechipper that hammer mill is separated the machine operation principle, be to utilize weight that joint slag slurry is broken up, very easily produce the broken end of a large amount of fibers when size degradation, efficient is very low simultaneously, energy consumption is very big.Squeezer can make knot be separated into fibre bundle, but can not disposablely be separated into single fiber, and is especially poorer to slag slurry treatment effect, do not have separating effect substantially, and it is follow-up also will to use high concentration plate mill to handle just to make knot slag slurry be separated into fiber.Trough-style pulp beater production efficiency is low, floor space big, production environment is poor, energy consumption consumes height, does not re-use in a lot of producers.Though the high concentration plate mill treatment effeciency is higher, material temperature is lower in the time of therefore, and raw material is more frangible, and disc mill is handled the back and easily produced a large amount of fragments, directly influences into intensity, the especially tearability of paper; It generally is 200～250kwh/ ton joint slag slurry that disc mill is handled joint slag slurry energy consumption.Be the protection refining equipment aborning, generally adding permanent-magnetic iron expeller at present on stream carries out deironing, though can remove metal such as ironware, can not remove heavy seeds such as stone; To run-on facilities such as fiberizers, often adopt higher input concentration and forced feed, forced feed system in process of production is easy to stuck by knot, brings the production fault.
Summary of the invention
Technical problem to be solved by this invention is that a kind of low energy consumption, the low pulp quality that pollutes, makes knot pulping process preferably is provided.
Another technical problem to be solved by this invention is that a kind of equipment kneading or grinding leaser that is used to implement the knot pulping process is provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of knot pulping process may further comprise the steps:
Step 3, the fibre bundle that step 2 is obtained are separated form slurry with the fiberizer mill;
It is characterized in that: the described wash engine of step 1 is a vacuum pulp washing machine, and the heavy impurity in will slightly starching in pulp washing is deposited in the vacuum pulp washing machine bottom land, and step 3 fibre bundle mill is separated and added black liquor in the process, and control slurry weight percent concentration is 3%～5%.
Below be further improved plan:
Improvement project one: step 1, the pulp washing hop count of vacuum pulp washing machine pulp washing is 2～3 sections, it is 0.8%～2% that pulp washing is slightly starched weight percent concentration, the water content that the thick slurry weight percent concentration that knotter removes joint is 1.5%～3%, step 2 is sent into the knot of kneading or grinding leaser is 30%～80%, (preferred 65%～75%); In step 4, screening installation preferred pressure sieve, screening slurry weight percent concentration are 1%～3%, wash engine filtering stock weight percent concentration is 0.8%～2%.
Improvement project two: in step 3, add the defoamer that is equivalent to over dry slurry weight 0.05%～0.15%.
Improvement project three: the knot that step 1 is separated further separates good fiber and the black liquor of carrying secretly in the knot through washing the joint machine, and removes bigger sandstone of proportion and metal object by the gravity effect.
Improvement project four: knot is removed metallics with electric magnetic iron remover before entering step 2 stranding mill.
Above improvement project can adopt respectively, also can make up employing.
The present invention's kneading or grinding leaser by reductor, motor, upper shell, lower house, support, the slurry roller that looses, be installed in bearing on the bearing block, go up liner plate, liner plate, shaft coupling, kneading or grinding leaser structure are formed down, motor links by the power shaft of shaft coupling and reductor, the output shaft of reductor links by the rotating shaft of shaft coupling and kneading or grinding leaser structure, the slurry roller that looses is housed on the kneading or grinding leaser structure discharge end rotating shaft, and loose slurry roller and rotating shaft are fixed by key connecting; Motor, reductor, lower house is fixed on the support, bearing block is fixed on the lower house, bearing supporting kneading or grinding leaser structure, upper shell and lower house pass through bolting, upper shell is provided with charging aperture, charging aperture is positioned at the feeding section top of kneading or grinding leaser structure, lower house is provided with discharging opening, discharging opening is positioned at the slurry roller below of loosing, and last liner plate is positioned at the inboard of upper shell, and following liner plate is positioned at the inboard of lower house, it is characterized in that: the kneading or grinding leaser structure is parallel by two, be meshing with each other, homodromal spiral right-handed screw blade and spiral backpitch blade are formed, right-handed screw blade and backpitch blade are installed on the rotating shaft, by key connecting, and by locking wire ring fix, have gap on the spiral shell rib of right-handed screw blade and backpitch blade, the feeding section is the right-handed screw blade, and the pitch of blade is descending, forms the taper.During work, material enters between the positive and negative screw blade by gap, and positive and negative screw blade produces compression to material and rubs the mill effect with the hands in operation process; The backpitch blade promotes the material reverse movement, makes the material accumulation form the pressure area.In pulping process, in the positive and negative screw blade operation process knot generation compression is rubbed with the hands the mill effect, with knot wire-dividing broom purification and conquassation, be dissociated into single fiber, the slurry roller that looses makes the fibre bundle behind the stranding mill discharge through breaing up the back.
Improvement project as above-mentioned kneading or grinding leaser: the right-handed screw blade of described kneading or grinding leaser structure is 3:2 with the ratio of the quantity of backpitch blade.
As the further improvement project of above-mentioned kneading or grinding leaser: the number of blade of the right-handed screw blade of described kneading or grinding leaser structure is 6, and the number of blade of backpitch blade is 4.
Kneading or grinding leaser of the present invention is not only applicable to slurrying production technology disclosed by the invention, also is suitable for to adopt other technology and method to be applied to knot slurrying.
The invention has the beneficial effects as follows: because the heavy impurity in will slightly starching in pulp washing is deposited in the vacuum pulp washing machine kerve, helping reducing heavy seeds and metal enters in kneading or grinding leaser and the fiberizer, reduce wear-out failure in process of production, improved the quality of slurry equipment; Add black liquor in the defibrination,, help the profit of wood fiber raw material is risen, accelerate defibration process, reduce refining energy consumption, improve stock quality because of containing a certain amount of residual alkali and the temperature high in the black liquor than normal temperature; Add defoamer, can reduce the foam volume in the defibrination process, reduce black liquor bleed, the protection environment.The inventive method can keep fibre length to greatest extent, the paper strength height, and refining energy consumption is low simultaneously, and when the inventive method was produced the knot slurry, refining energy consumption only was 150～180kWh/t knot slurry.
Description of drawings
Fig. 1 is a knot pulping process flow chart of the present invention;
Fig. 2 is a kneading or grinding leaser structural representation of the present invention;
Fig. 3 is the structural representation of the kneading or grinding leaser structure of kneading or grinding leaser shown in Figure 2.
Among the figure: 1, backpitch blade; 2, right-handed screw blade; 3, charging aperture; 4, reductor; 5, motor; 6, discharging opening; 7, lower house; 8, support; 9, diffusing slurry roller; 10, bearing I; 11, bearing II; 12, go up liner plate; 13, following liner plate; 14, upper shell; 15, locking wire ring; 16, gap; 17, rotating shaft.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
The inventive method embodiment:
With reference to Fig. 1, (1) after the wash engine washing, enters the thick slurry that sprays into after the boiling in the spraying pot knotter and starches the joint separation, and the good slurry that knotter is separated send the follow-up riddler's of washing preface, and the knot of separating send kneading or grinding leaser to rub with the hands and wears into fibre bundle; Wash engine adopts vacuum pulp washing machine in the present embodiment, in the pulp washing process, heavy impurity (comprising stone, metal etc.) can be deposited in the vacuum pulp washing machine bottom land simultaneously, the entrained heavy impurity of knot obviously reduces, and the heavy seeds that is deposited in bottom land is removed by regularly discharging aborning; Pulp washing is slightly starched weight percent concentration preferred 0.8%～2%, the pulp washing hop count is got 1～3 section, remove the thick slurry of joint weight ratio concentration and be preferably 1.5%～3%, the knot that comes out from knotter often is entrained with good fiber and black liquor, preferably adopt and wash the joint machine knot is washed, adopt the closed joint machine of washing in the optimal technical scheme of the present invention, because it is airtight washing the joint machine, can reduce sneaking into and the generation of foam of air, the good fiber that helps carrying secretly in the knot effectively separates with black liquor, and safeguard easily, its operation principle: knot enters the washing and screening tube from washing joint motor spindle charging aperture, knot and good fiber are stirred by spiral, and the heavy sandstone and the knot of bulk then sink to the heavy seeds gatherer, by emptying regularly; Knot preferably adopts electric magnetic iron remover to remove metallics before sending into kneading or grinding leaser stranding mill, helps protection equipment and improves stock quality;
(2) the isolated knot of step (1) is sent into the kneading or grinding leaser stranding and worn into fibre bundle; In rubbing the mill process with the hands, the water content of knot is 30%～80% during preferred defibrination, more preferably 65%～75%.
(3) step (2) gained fibre bundle is sent into fiberizer and wear into slurry; Prior art adopts higher refining concentration, and obtaining stock quality preferably, thereby fiberizer design input concentration mostly is more than 10%, and charging aperture adopts the spiral forced feed, but the forced feed system is easy to be blocked in the production process.The present invention changes the nature charging into, it is 3%～5% that the knot slurry that utilizes black liquor that fibre bundle is worn in stranding is diluted to weight percent concentration, wherein the black liquor of Jia Ruing derives from the black liquor of pulp making extraction, and preferred black liquid consistency solid content is 2%～12%, and temperature is 55～75 ℃.In the defibrination process, preferably add the defoamer that is equivalent to over dry slurry weight 0.05%～0.15%.
(4) after the slurry that step (3) is worn into screened with pressurized screen, good slurry entered the washing of multistage wash engine, makes the knot slurry behind the black liquor during extraction is starched, and the thick slag that screens returns step (3) again and wears into slurry, extracts hop count and is preferably 3～4 sections; The screening the pulp weight percent concentration preferably gets 1%～3%, the pulp washing weight percent concentration preferably gets 0.8%～2%.
Spray into the thick slurry in the spraying pot after the boiling, after one section wash engine washing, slightly starching weight percent concentration with the vacuum pulp washing machine pulp washing is 0.8%; Thick slurry enters knotter and removes joint after washing, removing joint slurry weight percent concentration is 1.5%; Wear into fibre bundle through sending into the kneading or grinding leaser stranding except that the isolated knot of joint, the water content of knot is 80% when rubbing mill with the hands; Fibre bundle after kneading or grinding leaser is rubbed mill with the hands enters fiberizer and wears into slurry, and the preferred double plate mill of fiberizer adds black liquor and defoamer in the defibrination process, and making defibrination slurry weight percent concentration is 3%, and the defoamer addition is 0.15% of an over dry slurry weight; Slurry after fiberizer is worn into is after pressurized screen screening, and good slurry enters 3 sections vacuum pulp washing machines washings, extracts the black liquor in the slurry, and the screening the pulp weight percent concentration is 1%, the pulp washing weight percent concentration is 0.8%.
Embodiment 2: spray into the thick slurry in the spraying pot after the boiling, after two sections wash engine washings, vacuum pulp washing machine pulp washing weight percent concentration is 1.5%; Thick slurry enters knotter and removes joint after washing, removing joint slurry weight percent concentration is 2.3%; Wear into fibre bundle through sending into the kneading or grinding leaser stranding except that the isolated knot of joint, the water content of knot is 75% when rubbing mill with the hands; Fibre bundle after kneading or grinding leaser is rubbed mill with the hands enters fiberizer and wears into slurry, and the preferred double plate mill of fiberizer adds black liquor and defoamer in the defibrination process, and making defibrination slurry weight percent concentration is 4%, and the defoamer addition is 0.07% of an over dry slurry weight; Good slurry enters 4 sections vacuum pulp washing machines washings to slurry after fiberizer is worn into through pressurized screen screening back, extracts the black liquor in starching, and screening the pulp slurry weight percent concentration is 2%, pulp washing slurry weight percent concentration is 1.5%.
Embodiment 3: spray into the thick slurry in the spraying pot after the boiling, after three sections wash engine washings, vacuum pulp washing machine pulp washing weight percent concentration is 2%; Thick slurry enters knotter and removes joint after washing, removing joint slurry weight percent concentration is 3%; Wear into fibre bundle through sending into the kneading or grinding leaser stranding except that the isolated knot of joint, the water content of knot is 30% when rubbing mill with the hands; Fibre bundle after kneading or grinding leaser is rubbed mill with the hands enters fiberizer and wears into slurry, and the preferred double plate mill of fiberizer adds black liquor and defoamer in the defibrination process, and making the defibrination weight percent concentration is 5%, and the defoamer addition is 0.05% of an over dry slurry weight; Good slurry enters 3 sections vacuum pulp washing machines washings to slurry after fiberizer is worn into through pressurized screen screening back, extracts the black liquor in starching, and screening the pulp slurry weight percent concentration is 3%, pulp washing slurry weight percent concentration is 2%.
Embodiment 4: spray into the chemical pulp in the spraying pot after the boiling, after three sections wash engine washings, vacuum pulp washing machine pulp washing weight percent concentration is 1.5%; Thick slurry enters knotter and removes joint after washing, removing joint slurry weight percent concentration is 2.5%; Wear into fibre bundle through sending into the kneading or grinding leaser stranding except that the isolated knot of joint, the water content of knot is 65% when rubbing mill with the hands; Fibre bundle after kneading or grinding leaser is rubbed mill with the hands enters fiberizer and wears into slurry, and the preferred double plate mill of fiberizer adds black liquor and defoamer in the defibrination process, and making defibrination slurry weight percent concentration is 4.1%, and the addition of defoamer is 0.1% of an over dry slurry weight; Good slurry enters 4 sections vacuum pulp washing machines washings to slurry after wearing into through pressurized screen screening back, extracts the black liquor in starching, and the screening the pulp weight percent concentration is 2.2%, the pulp washing weight percent concentration is 1.5%.
In the foregoing description 1-4, the slurry that the stock quality that makes with knot and the knot of adapted 20% the make stretched paper bag quality of manufacturing paper with pulp is as follows:
Last table data declaration, 80% sulfate wood pulp join slurry that 20% knot makes manufacture paper with pulp stretched paper bag with use the 100% sulfate wood pulp stretched paper bag of manufacturing paper with pulp, product quality indicator is approaching, the alternative part of sulfuric acid salt of the slurry that knot is made wood pulp uses.
The present invention's kneading or grinding leaser embodiment.
With reference to Fig. 2, Fig. 3, the present invention's kneading or grinding leaser is by the kneading or grinding leaser structure, reductor 4, motor 5, lower house 7, upper shell 14, support 8, slurry roller 9 looses, bearing I 10, bearing II 11, last liner plate 12, following liner plate 13 is formed, motor 5 links by the power shaft of shaft coupling and reductor 4, the output shaft of reductor 4 links by the rotating shaft 17 of shaft coupling and kneading or grinding leaser structure, the slurry roller 9 that looses is housed on kneading or grinding leaser structure discharge end rotating shaft 17, loose slurry roller 9 and rotating shaft 17 fixed by key connecting, motor 5 is by after reductor 4 speed changes, output power to the kneading or grinding leaser structure, housing is divided into upper shell 14 and lower house 7, and lower house 7 and upper shell 14 pass through bolting; Motor 5, reductor 4, lower house 7 are fixed on the support 8, bearing block is fixed on the lower house 7, be installed in bearing I 10, bearing II 11 supporting kneading or grinding leaser structures on the bearing block, upper shell 14 is provided with charging aperture 3, charging aperture 3 is positioned at the feeding section top of kneading or grinding leaser structure, lower house 7 is provided with discharging opening 6, and discharging opening 6 is positioned at slurry roller 9 belows of loosing, and last liner plate 12, following liner plate 13 lay respectively at the inboard of upper shell 14, lower house 7; Kneading or grinding leaser structure spiral right-handed screw blade 2 and spiral backpitch blade 1 parallel by two, that be meshing with each other, rotate in the same way the promotion material movement are formed, right-handed screw blade 2 and backpitch blade 1 are installed on the rotating shaft 17, pass through key connecting, and by locking wire ring 15 be locked, have gap 16 on the spiral shell rib of right-handed screw blade 2 and backpitch blade 1, right-handed screw blade 2 is positioned at the feeding section, and the pitch of blade is descending, forms the taper.Knot enters between right-handed screw blade 2 and the backpitch blade 1 by gap 16, and right-handed screw blade 2 and backpitch blade 1 produce compression to knot and rub the mill effect with the hands in operation process; Backpitch blade 1 promotes the knot reverse movement, make the material accumulation form the pressure area, in operation process, knot is produced compression and rub the mill effect with the hands, knot through repeatedly be subjected to repeatedly fiber axis to extruding after, fiber vertically separates, with knot wire-dividing broom purification and conquassation, be dissociated into single fiber, the slurry roller 9 that looses makes the fibre bundle that obtains behind the stranding mill discharge through breaing up the back.The quantity and the size of the gap of opening on the spiral shell rib by adjustment right-handed screw blade 2 and backpitch blade 1 16 can be controlled knot and enter the amount that the stranding mill divides silk to distinguish, and control residence time of material and squeeze pressure, thereby reach the purpose of the stock quality that needs.
The right-handed screw blade of kneading or grinding leaser is preferably 3:2 with the ratio of backpitch knife number; More preferably the quantity of right-handed screw blade is 6, the quantity of screw blade is 4 anyway, can take into account the stranding mill quality and the production capacity of knot slurry, makes the slurrying energy consumption descend.
Claims (9)
1. knot pulping process may further comprise the steps:
Step 1, with the thick slurry after the boiling with after the wash engine washing, thick slurry is sent into knotter and is starched joint and separate, and obtains paper pulp and knot;
Step 2, step 1 is separated the knot obtain send into kneading or grinding leaser and rub with the hands and wear into fibre bundle;
Step 3, the fibre bundle that step 2 is obtained are separated form slurry with the fiberizer mill;
Step 4, the slurry that step 3 is worn into screen with screening installation, the qualified paper pulp that filters out is sent into the production line of being made up of three sections or four sections wash engines and is washed, extract the black liquor in the paper pulp, make the knot slurry, do not send into the step 3 defibrination again by the thick slag of screening installation;
It is characterized in that: the described wash engine of step 1 is a vacuum pulp washing machine, and the heavy impurity in will slightly starching in pulp washing is deposited in the vacuum pulp washing machine bottom land, and step 3 fibre bundle mill is separated and added black liquor in the process, and control slurry weight percent concentration is 3%～5%.
2. knot pulping process according to claim 1, it is characterized in that: step 1 vacuum pulp washing machine pulp washing hop count is 2～3 sections, it is 0.8%～2% that pulp washing is slightly starched weight percent concentration, the thick slurry weight percent concentration that enters knotter is 1.5%～3%, the water content that step 2 is sent into the knot of kneading or grinding leaser is 30%～80%, the described screening installation of step 4 is a pressurized screen, and screening slurry weight percent concentration is 1%～3% in this step, the filtering stock weight percent concentration is 0.8%～2%.
3. knot pulping process according to claim 1 and 2 is characterized in that: separate at step 3 fibre bundle mill and add the defoamer that is equivalent to over dry slurry weight 0.05%～0.15% in the process.
4. knot pulping process according to claim 1 and 2 is characterized in that: the knot that step 1 is separated further separates good fiber and the black liquor of carrying secretly in the knot with washing the joint machine, and removes sandstone and metal object.
5. knot pulping process according to claim 1 and 2 is characterized in that: knot enters before step 2 rubs mill with the hands, removes wherein metallics with electric magnetic iron remover.
6. knot pulping process according to claim 2 is characterized in that: the water content that step 2 is sent into the knot of kneading or grinding leaser is 65%～75%.
7. implement the kneading or grinding leaser that the described knot pulping process of one of claim 1-6 uses for one kind, by reductor, motor, upper shell, lower house, support, the slurry roller that looses, be installed in bearing on the bearing block, go up liner plate, liner plate, shaft coupling, kneading or grinding leaser structure are formed down, motor links by the power shaft of shaft coupling and reductor, the output shaft of reductor links by the rotating shaft of shaft coupling and kneading or grinding leaser structure, the slurry roller that looses is housed on the kneading or grinding leaser structure discharge end rotating shaft, and loose slurry roller and rotating shaft are fixed by key connecting; Motor, reductor, lower house is fixed on the support, bearing block is fixed on the lower house, bearing supporting kneading or grinding leaser structure, upper shell and lower house pass through bolting, upper shell is provided with charging aperture, charging aperture is positioned at the feeding section top of kneading or grinding leaser structure, lower house is provided with discharging opening, discharging opening is positioned at the slurry roller below of loosing, and last liner plate is positioned at the inboard of upper shell, and following liner plate is positioned at the inboard of lower house, it is characterized in that: the kneading or grinding leaser structure is parallel by two, be meshing with each other, homodromal spiral right-handed screw blade and spiral backpitch blade are formed, right-handed screw blade and backpitch blade are installed on the rotating shaft, by key connecting, and by locking wire ring fix, have gap on the spiral shell rib of right-handed screw blade and backpitch blade, the feeding section is the right-handed screw blade, and the pitch of blade is descending, forms the taper.
8. kneading or grinding leaser according to claim 7 is characterized in that: the right-handed screw blade of described kneading or grinding leaser structure is 3:2 with the ratio of the quantity of backpitch blade.
9. according to claim 7 or 8 described kneading or grinding leasers, it is characterized in that: the quantity of the right-handed screw blade of described kneading or grinding leaser structure is 6, and the quantity of backpitch blade is 4.
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| CN2010102173505A CN101838943B (en) | 2010-07-05 | 2010-07-05 | Knot energy-saving environment-friendly pulping method and equipment |
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Cited By (4)
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| CN106087514A (en) * | 2016-07-20 | 2016-11-09 | 袁小厂 | A kind of beating equipment of small-sized paper-making pulping |
| CN109423900A (en) * | 2017-08-30 | 2019-03-05 | 黑龙江如柏科技有限公司 | A kind of paper pulp production line system |
| CN111549552A (en) * | 2020-05-25 | 2020-08-18 | 广西大学 | High-yield chemi-mechanical pulp making method for recycling alkali in waste water |
| CN113249996A (en) * | 2021-03-08 | 2021-08-13 | 山东诺建机械科技有限公司 | Production process for preparing fiber by breaking wall of plant raw material |
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