CN102828432A - Batch refiner and refining process thereof - Google Patents
Batch refiner and refining process thereof Download PDFInfo
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- CN102828432A CN102828432A CN2012102859538A CN201210285953A CN102828432A CN 102828432 A CN102828432 A CN 102828432A CN 2012102859538 A CN2012102859538 A CN 2012102859538A CN 201210285953 A CN201210285953 A CN 201210285953A CN 102828432 A CN102828432 A CN 102828432A
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Abstract
The invention provides a batch refiner which comprises a shell, a moving refining plate, a fixed refining plate, a transmission shaft and a gap adjusting mechanism, wherein the moving refining plate and the fixed refining plate are coaxially arranged, and the transmission shaft is coaxially connected with the moving refining plate. The batch refiner is further provided with a fluid pushing device, a fluid inlet channel is arranged on the moving refining plate or the fixed refining plate and penetrates through two bottom surfaces of the moving refining plate or the fixed refining plate, a discharge end face of the fluid pushing device faces the fluid inlet channel, and communicated backflow gaps are reserved between the fluid pushing device and the shell as well as between each refining plate and the shell respectively. Multiple refining can be achieved by circulating pulp between the refining plates when the batch refiner is operated, and times of refining are not limited by the batch refiner; and gaps between the refining plates can be adjusted by the gap adjusting mechanism so as to adapt to changes of the pulp. The batch refiner is simple and flexible in operation.
Description
Technical field
The invention belongs to the paper-making pulping field, be specifically related to a kind of batch (-type) fiberizer and refining process thereof.
Background technology
In paper industry, papermaking can not be directly be used for from the paper pulp of pulping process, but at first making beating will be passed through, reason is that the paper pulp fiber of this moment is stiffening and flexible; Also contain a large amount of unsegregated fibre bundles, these fibre bundle hardness are big, and have oversize; What have is too thick, lacks necessary to prescind and separate, as uses its papermaking; Loose, the porous of the product of gained then, rough surface and hardness are very low, can not satisfy instructions for use.Hydrabeating is to utilize mechanical device to handle the paper pulp fiber in the water; To fiber push uniformly, rub, mechanism such as cut-out, combing; Make fiber cut off, divide various metamorphosis such as silk, brooming, swollen, thereby make the paper of its production can reach the operating process of prospective quality.In pulping process, fiber except receiving physical action, the cell membrane of fiber phenomenon such as also can be subjected to displacement, be out of shape and break; And then cause fiber that the suction swollen takes place; Produce fibrillating, make the paper that makes have flexibility and plasticity, simultaneously through making beating; Increase hydroxyl and the chance of hydrogen chain combination in the cellulose molecular chain, improved interfibrous adhesion.
The machinery that is used to pull an oar in the prior art can be divided into batch (-type) beater and continous mode beater two big classes, and wherein the batch (-type) beater refers to all kinds of trough-style pulp beaters, and the structure of trough-style pulp beater commonly used is: the centre at an oval cell body is provided with sandwich wall; Said sandwich wall is separated into two zones with said cell body; In the zone of broad, be provided with rotating rotor, on the outer surface of said rotor, fly cutter be installed, fly cutter and the coaxial setting of said cutter rod; Also be set with bed plate in the said beater; Said bed plate and said fly cutter laterally arrange, and this beater is when operation, and rotor rotates along axis; Because fly cutter has certain convexity with respect to the cutter rod; Thereby make paper pulp under the promotion of fly cutter, in groove, circulate, and produce effects such as cut-out, division, conquassation, swollen, thereby process the slurry that meets the papermaking requirement through the cooperation between fly cutter and the bed plate.Slot type hydrabeating machine is the early stage a kind of beating equipment that uses in slurrying field; Its adaptability to the paper pulp kind is stronger, but the making beating efficient of slot type hydrabeating machine is very low, and energy consumption is bigger; Therefore basically be eliminated at present, only use in some small-sized paper mills.
In order to improve making beating efficient; The continous mode beater has appearred again after trough-style pulp beater; Said continous mode beater comprises millstone pulping machine and bevel-type fiberizer, and wherein about the abrasive disk type beater, Chinese patent document CN201132123Y discloses a kind of millstone pulping machine; Comprise motor, defibrination chamber, the feed space that is communicated with the defibrination chamber; Material is transported to the indoor feeding screw of defibrination, is positioned at the indoor moving abrasive disc that is arranged on the quiet abrasive disc on the casing and is complementary with quiet abrasive disc of defibrination from feed space, and the defibrination chamber is positioned at the cavity that is formed by casing and cover, and the wall of said cavity is provided with the plasma discharge mouth.This device also is provided with and is used to regulate the governor motion between quiet abrasive disc and the moving abrasive disc; Said governor motion by be installed in the adjusting screw(rod) on the cover through screw thread pair, regulating block and the steel ball between adjusting screw(rod) and regulating block that is installed on the support casing constitutes, steel ball axially acts on adjusting screw(rod) and regulating block respectively.During this device busy, utilize governor motion that the gap between dynamic grinding block and the static grinding block is adjusted after, be locked by locking nut and can carry out defibrination.Except above-mentioned governor motion; Chinese patent document CN101122102A also discloses a kind of device that the grinding clearance of disc type paste mill is carried out on-line measurement and control; Mill advanced dish, moves back the operation of dish when this device perhaps moved except being used for the startup of mill beater, remedied the wearing and tearing that take place in the running thereby also can be used for the online dish gap that grinds.The millstone pulping machine advances slurry, continuous pulp continuously when operation, have good making beating efficient.
Above-mentioned abrasive disk type beater is a Dan Mo district formula beater; Because the time of staying of slurry in grinding tool is shorter; Have only several seconds, thereby just cause the refining pulp quality of beater not high, the beating degree of the paper pulp that comes out from above-mentioned beater does not still reach the requirement of papermaking; Also contain a large amount of untreated fibers and fibre bundle in the pulp, thereby influenced the quality of papermaking product.Therefore; In order to improve the refining pulp quality of slurrying; Many beater series connection normally are set in the prior art use or in a beater, be provided with a plurality of mills district; Disclose a kind of two disc pulping machines that are provided with a plurality of mills district like Chinese patent document CN2892938Y in the prior art, be shaped on the side bulge loop movingly with rotary grinding disk on the corresponding casing inner wall in the side of the rotary grinding disk of this pair disc pulping machine, thereby in casing, form two mill districts; Add the grout outlet and the stock inlet that are shaped on series connection Liang Mo district on the residing casing in Liang Mo district, the left and right sides respectively, thereby slurry has successively improved the beating degree of paper pulp through two mill districts.
Thereby above-mentioned beater has improved the beating degree of paper pulp to a certain extent through a plurality of mills district is set, and still, the defective that beating equipment of the prior art still exists is: no matter many beater series connection are set or a plurality of mills district is set in a beater; All there is the lengthy and jumbled problem of equipment, especially when using above-mentioned beater to break wood pulp, because wood pulp contains a large amount of wood chips and fibre bundle; Therefore when breaking wood pulp; In order to guarantee that initial wood pulp can pass through grinding tool, it is bigger that the primary clearance of grinding tool is provided with usually, in this case; In order to guarantee the refining pulp quality of wood pulp; Much more very beaters just must be set or very many mill districts are set in a beater, and gap that each mill district that paper pulp passes through is set reduces successively, this just causes equipment too lengthy and jumbled.And in actual beating process, in case advance slurry variation has taken place, just needed to increase once more or reduce the mill district; And the setting in a single day of above-mentioned beater finishes; Adjust with regard to being difficult to, therefore above-mentioned beater underaction is difficult to adapt to the variation of advancing slurry in the actual process again.
Summary of the invention
In order to solve beater of the prior art in order to improve the beating degree of paper pulp; In a single day beater is provided with and finishes in problem that the equipment that exists when many beater series connection being set or in a beater, a plurality of mills district being set is lengthy and jumbled and the prior art; Just being difficult to increases or reduces the mill district, is difficult to adapt to and advances the problem that slurry changes in the actual process.The invention provides that a kind of equipment is simple, the batch (-type) fiberizer of flexible operation, the invention also discloses the refining process that uses said batch (-type) fiberizer.
The technical scheme of batch (-type) fiberizer of the present invention is:
A kind of batch (-type) fiberizer comprises:
Housing, said housing are provided with stock inlet and the grout outlet that can control break-make;
Mill comprises the movable grinding disc and the fixed millstone of coaxial setting, and said movable grinding disc and fixed millstone are arranged in the said housing, are provided with grinding clearance between said movable grinding disc and the fixed millstone;
Power transmission shaft is connected with said movable grinding disc is coaxial, drives said movable grinding disc and does synchronous rotation;
Clearance adjustment mechanism is used to adjust the gap between said movable grinding disc and the fixed millstone;
Also be provided with:
The plug-flow device; Be arranged in the said housing; Said fixed millstone or said movable grinding disc are provided with feed pathway, and two bottom surfaces that said feed pathway runs through said fixed millstone or said movable grinding disc are provided with, and the discharge end of said plug-flow device is towards said feed pathway setting;
In the backflow gap that is provided with connection between said plug-flow device and the said housing and between said mill and the said housing.
Said plug-flow device and said fixed millstone and the coaxial setting of said movable grinding disc.
Said plug-flow device is an auger.
Said power transmission shaft runs through said fixed millstone and is connected with said movable grinding disc, and said plug-flow device is connected with said movable grinding disc, and said plug-flow device and said power transmission shaft are positioned at the both sides of said movable grinding disc.
The technology of described batch (-type) paste mill grinding comprises:
(1) primary clearance between adjustment movable grinding disc and the fixed millstone is 0.5-5mm; Close said grout outlet; Slurries are sent in the said fiberizer housing, opened said plug-flow device and said movable grinding disc, said plug-flow device promotion slurries get into said grinding clearance and carry out defibrination;
(2) reduce gap between movable grinding disc and the fixed millstone one by one, be reduced to 0.005-0.1mm until said gap;
(3) close said plug-flow device and said movable grinding disc, open said grout outlet and emit the good paper pulp of mill.
The technology of described defibrination comprises:
(1) primary clearance between adjustment movable grinding disc and the fixed millstone is 0.5mm; With concentration is that the chemical wood pulp of 5-20wt% is sent in the said fiberizer housing; Open said plug-flow device and said movable grinding disc; Said plug-flow device promotion slurries get into said grinding clearance and carry out defibrination, and the defibrination time is 5-10min;
(2) said gap is transferred to 0.4mm, operation 5-10min;
(3) after step (2) finished, every separated 5-10min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(4) after step (3) finished, every separated 5-10min reduced 0.01mm with said gap, and 5-10min reruns after said gap transfers to 0.01mm;
(5) close said plug-flow device and said movable grinding disc, open said grout outlet and emit the good paper pulp of polishing.
The technology of described defibrination comprises:
(1) primary clearance between adjustment movable grinding disc and the fixed millstone is 2.5mm; Concentration is the branch silk wood chip slurry of 5-20wt% or divides silk blade slurry to send in the said fiberizer housing; Open said plug-flow device and said movable grinding disc; Said plug-flow device promotion slurries get into said grinding clearance and carry out defibrination, and every separated 5-10min reduces 0.3-0.5mm with said gap, transfers to 1mm until said gap;
(2) after step (1) finished, every separated 5-10min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(3) after step (2) finished, every separated 5-10min reduced 0.01mm with said gap, and 5-10min reruns after said gap transfers to 0.01mm;
(4) close said plug-flow device and said movable grinding disc, open said grout outlet and emit the good paper pulp of polishing.
The technology of described defibrination comprises:
(1) primary clearance between adjustment movable grinding disc and the fixed millstone is 3-5mm; With concentration is that wood chip or the slurry person blade slurry of 5-20wt% is sent in the said fiberizer housing; Open said plug-flow device and said movable grinding disc; Said plug-flow device promotion slurries get into said grinding clearance and carry out defibrination, and every separated 5-10min reduces 0.2-0.5mm with said gap, transfers to 1mm until said gap;
(2) after step (1) finished, every separated 5-10min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(3) after step (2) finished, every separated 5-10min reduced 0.01mm with said gap, and 5-10min reruns after said gap transfers to 0.01mm;
(4) close said plug-flow device and said movable grinding disc, open said grout outlet and emit the good paper pulp of polishing.
In said step (1), in said slurries, add bleaching agent and chemical treatments.
Said bleaching agent and chemical treatments are H
2O
2And NaOH.
Refining process of the present invention is provided with different preparation technologies to different paper pulp, and the advantage that is provided with like this is:
Technology of the present invention is through setting gradually the grinding clearance that reduces gradually in the different periods; When guaranteeing low defibrination power consumption, can also prepare the higher paper pulp of long fiber component content; It is less if primary clearance is provided with that reason is, the coarse fiber bundle that then gets between said mill is cut off easily, thereby make that the component content of the slurries medium-length fibre that makes is less; And then the paper tensile strength that causes making is less; The present invention is through being provided with bigger primary clearance, can guarantee that fibre bundle also is not cut off when separating kowtowing, and reduces grinding clearance then gradually in technology after this; Make long fiber obtain effective protection, thereby can prepare paper with high-tensile and pop strength.
Wherein, Through the technology that is used for ground wood sheet slurry or blade slurry of the present invention; Can save the branch wire process before the defibrination, not only can reduce equipment investment, and compare traditional technological process of being furnished with branch silk equipment and have lower defibrination power consumption and better pulp quality.
The technology of defibrination of the present invention; Also be limited to and grind when dividing silk wood chip slurry or a branch blade slurry or wood chip slurry or blade slurry; In said step (1), in said slurries, add bleaching agent and/chemical treatments, such advantage is that chemical reaction process can reduce even destroy fiber and the interfibrous adhesion in the plant fiber material; In defibrination, one be the cutting action that can reduce like this, help improving greatly pulp quality fiber; The 2nd, can reduce disassociation plant fiber material energy needed, significantly reduce power consumption.The more important thing is; The strong mechanical-physical process that defibrination produces can be gone out chemical reaction product in time from the sur-face peeling of fiber, thereby makes new chemical agent with new fiber surface contact, can make chemical reaction velocity accelerate more than ten times like this; Under the prerequisite that consumes same chemical agent; Can obtain higher pulp quality, and the slurrying flow process simplifies to some extent, equipment investment also reduces thereupon.
The advantage of batch (-type) fiberizer of the present invention is:
(1) batch (-type) fiberizer of the present invention; On the basis that housing, mill, power transmission shaft, clearance adjustment mechanism are set; Also be provided with the plug-flow device; And said fixed millstone or said movable grinding disc be provided with feed pathway, and two bottom surfaces that said feed pathway runs through said fixed millstone or said movable grinding disc are provided with, and the discharge end of said plug-flow device is towards said feed pathway setting; Be provided with backflow gap between said plug-flow device and the said housing and between said mill and the said housing.Batch (-type) fiberizer of the present invention; When operation; Said plug-flow device promotes said slurries and gets between said movable grinding disc and the said fixed millstone through said feed pathway, gets back near the said thrust unit through said backflow gap from the slurries that flow out between said movable grinding disc and the said fixed millstone again; Can realize repeatedly defibrination through the circulation of slurry between said mill, the number of times of defibrination does not receive the restriction of equipment; And can realize the adjustment of abrasive disk space through said clearance adjustment mechanism, thereby can adapt to the variation of slurry that batch (-type) fiberizer equipment of the present invention is simple, flexible operation;
In addition, batch (-type) fiberizer of the present invention has selectivity to the slurry of polishing; Reason is that after slurrying began, the paper pulp that comes out from grinding clearance was thrown out of under the centrifugal action of grinding tool; Again near said backflow gap is got back to said plug-flow device; In this course, the fine fibre that polishing is good is bigger owing to proportion, under action of centrifugal force, is thrown in the backflow gap away from said plug-flow device; And crude fibre that polishing is good or thick wood chip with blade owing to contain intact lumens in a large number; Proportion is less; Therefore can accumulate in the plug-flow device near; Under the impetus of plug-flow device, realize defibrination repeatedly, thereby guaranteed that fiberizer can improve the efficient and the quality of making beating to the even defibrination of all paper pulp.
(2) batch (-type) fiberizer of the present invention, it is auger that said plug-flow device is set, reason is that said auger has higher plug-flow efficient.The present invention also further is provided with said power transmission shaft and runs through said fixed millstone and be connected with said movable grinding disc, and said plug-flow device is connected with said movable grinding disc, and said plug-flow device and said power transmission shaft are positioned at the both sides of said movable grinding disc.Through this set mode; When the rotation of said power transmission shaft, can drive said movable grinding disc and said auger rotates simultaneously, thereby when realizing defibrination, also realize the rotation plug-flow of auger; Needn't effectively save energy consumption again for auger is provided with independent power set.
Description of drawings
For content of the present invention is understood more easily, the present invention will combine the accompanying drawing and the specific embodiment that content of the present invention is further explained.
As shown in Figure 1 is the structure chart of batch (-type) fiberizer of the present invention;
As shown in Figure 2 is the structure chart of the convertible mode of batch (-type) fiberizer of the present invention;
As Fig. 3 and shown in Figure 4 be the structure chart of clearance adjustment mechanism of the present invention;
Wherein, Reference numeral is:
The 1-fixed millstone; The 2-movable grinding disc; 3-plug-flow device; The 4-housing; The 5-power transmission shaft; The 6-feed pathway; The 7-backflow gap; The 8-motor; The 9-worm screw; The 10-worm gear; The 11-threaded rod; The 12-universal driving shaft.
The specific embodiment
Embodiment 1
Batch (-type) fiberizer described in the present embodiment, as shown in Figure 1, comprising:
Housing 4, said housing 4 are provided with stock inlet and the grout outlet that can control break-make;
Mill comprises the movable grinding disc 2 and fixed millstone 1 of coaxial setting, and said movable grinding disc 2 is arranged in the said housing 4 with fixed millstone 1, is provided with grinding clearance between said movable grinding disc 2 and the fixed millstone 1;
Power transmission shaft 5 with said 2 coaxial connections of movable grinding disc, drives said movable grinding disc 2 and does synchronous rotation;
Clearance adjustment mechanism is used to adjust the gap between said movable grinding disc 2 and the fixed millstone 1;
Plug-flow device 3 is arranged in the said housing 4, and said fixed millstone 1 is provided with feed pathway 6, and two bottom surfaces that said feed pathway runs through said fixed millstone 1 are provided with, and the discharge end of said plug-flow device 3 is provided with towards said feed pathway 6; As preferred embodiment, the device of plug-flow described in the present embodiment 3 is an auger, and said auger and said fixed millstone 1 and said movable grinding disc 2 coaxial settings;
In the backflow gap 7 that is provided with connection between said plug-flow device 3 and the said housing 4 and between said mill and the said housing.
The technology of utilizing the batch (-type) fiberizer described in the present invention to beat chemical wood pulp comprises:
(1) primary clearance between adjustment movable grinding disc 2 and the fixed millstone 1 is 0.5mm; Close said grout outlet; The leaf wood chemical pulp that will be 15wt% through the concentration after the bleaching is sent in the said fiberizer housing 4; Open said plug-flow device 3 and said movable grinding disc 2, said plug-flow device 3 promotion slurries get into said grinding clearance and carry out defibrination, and the defibrination time is 10 minutes;
(2) reduce gap between movable grinding disc 2 and the fixed millstone 1 to 1mm, defibrination 10 minutes;
(3) reduce gap between movable grinding disc 2 and the fixed millstone 1 to 0.5mm, defibrination 10 minutes;
(4) gap between minimizing movable grinding disc 2 and the fixed millstone 1 is to 0.005mm, and defibrination 10 minutes promptly obtains the slurries that grind;
(5) close said plug-flow device 3 and said movable grinding disc 2, open said grout outlet and emit the good paper pulp of polishing.
The rotating speed of movable grinding disc is 300 rev/mins in the present embodiment, and the ratio of slurries total amount is 1/3 in the defeated slurry amount of auger per minute and the housing.
Embodiment 2
Batch (-type) fiberizer described in the present embodiment, as shown in Figure 2, comprising:
Housing 4, said housing 4 are provided with stock inlet and the grout outlet that can control break-make;
Mill comprises the movable grinding disc 2 and fixed millstone 1 of coaxial setting, and said movable grinding disc 2 is arranged in the said housing 4 with fixed millstone 1, is provided with grinding clearance between said movable grinding disc 2 and the fixed millstone 1;
Power transmission shaft 5 with said 2 coaxial connections of movable grinding disc, drives said movable grinding disc 2 and does synchronous rotation; Power transmission shaft described in the present embodiment 5 runs through said fixed millstone 1 and is connected with said movable grinding disc 2.
Clearance adjustment mechanism is used to adjust the gap between said movable grinding disc 2 and the fixed millstone 1;
Plug-flow device 3 is arranged in the said housing 4, and said movable grinding disc 2 is provided with feed pathway 6, and two bottom surfaces that said feed pathway 6 runs through said movable grinding disc 2 are provided with, and the discharge end of said plug-flow device 3 is provided with towards said feed pathway 6; Said plug-flow device 3 is connected with said movable grinding disc 2, and said plug-flow device 3 and said power transmission shaft 5 are positioned at the both sides of said movable grinding disc 2; The device of plug-flow described in the present embodiment 3 is the auger with said fixed millstone 1 and said movable grinding disc 2 coaxial settings.
In the backflow gap 7 that is provided with connection between said plug-flow device 3 and the said housing 4 and between said mill and the said housing.
The technology of utilizing the batch (-type) fiberizer described in the present invention to beat chemical wood pulp comprises:
(1) primary clearance between adjustment movable grinding disc 2 and the fixed millstone 1 is 0.5mm; Close said grout outlet; With concentration is that the leaf wood chemical pulp of 5wt% is sent in the said fiberizer housing 4; Open said plug-flow device 3 and said movable grinding disc 2, said plug-flow device 3 promotion slurries get into said grinding clearance and carry out defibrination, and the defibrination time is 5min;
(2) said gap is transferred to 0.4mm, operation 5min;
(3) after step (2) finished, every separated 5min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(4) after step (3) finished, every separated 5min reduced 0.01mm with said gap, after said gap transfers to 0.01mm, reruns 5 minutes;
(5) close said plug-flow device 3 and said movable grinding disc 2, open said grout outlet and emit the good paper pulp of polishing.
The rotating speed of movable grinding disc is 1000 rev/mins, and the ratio of slurries total amount is 1/3 in the defeated slurry amount of auger per minute and the housing.
Embodiment 3
A kind of batch (-type) fiberizer of the present invention, as shown in Figure 2, comprising:
Housing 4, said housing 4 are provided with stock inlet and the grout outlet that can control break-make;
Mill comprises the movable grinding disc 2 and fixed millstone 1 of coaxial setting, and said movable grinding disc 2 is arranged in the said housing 4 with fixed millstone 1, is provided with grinding clearance between said movable grinding disc 2 and the fixed millstone 1;
Power transmission shaft 5 with said 2 coaxial connections of movable grinding disc, drives said movable grinding disc 2 and does synchronous rotation; Power transmission shaft described in the present embodiment 5 runs through said fixed millstone 1 and is connected with said movable grinding disc 2.
Clearance adjustment mechanism is used to adjust the gap between said movable grinding disc 2 and the fixed millstone 1;
Plug-flow device 3 is arranged in the said housing 4, and said movable grinding disc 2 is provided with feed pathway 6, and two bottom surfaces that said feed pathway runs through said movable grinding disc 2 are provided with, and the discharge end of said plug-flow device 3 is provided with towards said feed pathway 6; Said plug-flow device 3 is connected with said movable grinding disc 2, and said plug-flow device 3 and said power transmission shaft 5 are positioned at the both sides of said movable grinding disc 2; The device of plug-flow described in the present embodiment 3 is the auger with said fixed millstone 1 and said movable grinding disc 2 coaxial settings.
In the backflow gap 7 that is provided with connection between said plug-flow device 3 and the said housing 4 and between said mill and the said housing 4.
The technology of utilizing the batch (-type) fiberizer described in the present invention to beat chemical wood pulp comprises:
(1) primary clearance between adjustment movable grinding disc 2 and the fixed millstone 1 is 0.5mm; Close said grout outlet; With concentration is that the leaf wood chemical pulp of 20wt% is sent in the said fiberizer housing 4; Open said plug-flow device 3 and said movable grinding disc 2, said plug-flow device 3 promotion slurries get into said grinding clearance and carry out defibrination, and the defibrination time is 10min;
(2) said gap is transferred to 0.4mm, operation 10min;
(3) after step (2) finished, every separated 10min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(4) after step (3) finished, every separated 10min reduced 0.01mm with said gap, after said gap transfers to 0.01mm, reruns 10 minutes;
(5) close said plug-flow device 3 and said movable grinding disc 2, open said grout outlet and emit the good paper pulp of polishing.
The rotating speed of movable grinding disc is 500 rev/mins, and the ratio of slurries total amount is 1/10 in the defeated slurry amount of auger per minute and the housing.
Embodiment 4-7
Batch (-type) fiberizer described in the embodiment 4-7 is with embodiment 3, and the beating process among the said embodiment 4-7 is as shown in the table:
In the above-described embodiments, said plug-flow device is preferably auger, and as selectable embodiment, said plug-flow device also can be selected such as adding plug-flow devices of the prior art such as pump unshrouded impeller.The discharge end of the plug-flow device described in the present invention is that said plug-flow device promotes the end of said material away from said plug-flow device.
Same in the defibrination process of the foregoing description, the rotating speed of movable grinding disc is 300-1500 rev/min as preferred embodiment, and the ratio of slurries total amount is 1/3-1/10 in the defeated slurry amount of auger per minute and the housing.
In addition, the clearance adjustment mechanism in the foregoing description such as Fig. 3 and shown in Figure 4 comprise:
Motor 8;
Worm screw 9 and worm gear 10, said worm screw 9 is connected setting with said motor, and said worm gear 10 and the supporting setting of said worm screw are provided with the inner ring screw thread at the inner ring of said worm gear;
Threaded rod 11, the said threaded rod 11 nested inner rings that are arranged on said worm gear, the outer wall of said threaded rod 11 is provided with the outer wall thread that matches with said inner ring screw thread;
The course of work of this clearance adjustment mechanism is:
Worm screw is passed to worm gear with the rotation of motor 8; Driving said worm gear rotates; When said worm gear rotates, driving said threaded rod 11 again moves up and down; And this action that moves up and down is passed to said fixed millstone 1, thereby the grinding clearance between said fixed millstone 1 and the said movable grinding disc 2 is adjusted through gangbar.
As selectable embodiment, said clearance adjustment mechanism also can be arranged to the manual arbitrarily perhaps regulator of On-line Control in the prior art.
Experimental example
In order to prove the effect of equipment described in the present invention and technology, the present invention copies paper to the paper pulp that embodiment 1-7 makes, and the tensile strength of the paper that records (in length and breadth to average) is:
Comparative Examples
In order further to prove the effect of equipment described in the present invention and technology; The present invention also is provided with Comparative Examples, uses the continous mode fiberizer of two series connection in the prior art in the Comparative Examples, and the abrasive disk space of first fiberizer is 0.5mm; The abrasive disk space of second fiberizer is 0.005mm; In the said Comparative Examples advance among slurries and the embodiment 1 to advance slurries identical, slurries are introduced into first fiberizer, the slurries of discharging from first fiberizer outlet get into second fiberizer again; Utilize the outlet slurries of second fiberizer to copy paper, the tensile strength of the paper that records (in length and breadth to average) is 60N/m.
Can find out that from The above results the paper tensile strength that the slurries that the embodiment of the invention 1 described equipment and prepared obtain are processed is better than equipment and technology in the Comparative Examples.
Though the present invention has carried out detailed elaboration through the specific embodiment to it; But; Any form that does not exceed the claim protection domain that those skilled in the art should be understood that on this basis to be made and the variation of details all belong to invention which is intended to be protected.
Claims (10)
1. batch (-type) fiberizer comprises:
Housing (4), said housing (4) are provided with stock inlet and the grout outlet that can control break-make;
Mill comprises the movable grinding disc (2) and the fixed millstone (1) of coaxial setting, and said movable grinding disc (2) and fixed millstone (1) are arranged in the said housing (4), are provided with grinding clearance between said movable grinding disc (2) and the fixed millstone (1);
Power transmission shaft (5) with coaxial connection of said movable grinding disc (2), drives said movable grinding disc (2) and does synchronous rotation;
Clearance adjustment mechanism is used to adjust the gap between said movable grinding disc (2) and the fixed millstone (1);
It is characterized in that, also be provided with:
Plug-flow device (3); Be arranged in the said housing (4); Said fixed millstone (1) or said movable grinding disc (2) are provided with feed pathway (6); Two bottom surfaces that said feed pathway runs through said fixed millstone (1) or said movable grinding disc (2) are provided with, and the discharge end of said plug-flow device (3) is provided with towards said feed pathway (6);
In the backflow gap (7) that is provided with connection between said plug-flow device (3) and the said housing (4) and between said mill and the said housing (4).
2. batch (-type) fiberizer according to claim 1 is characterized in that, said plug-flow device (3) and said fixed millstone (1) and the coaxial setting of said movable grinding disc (2).
3. batch (-type) fiberizer according to claim 1 and 2 is characterized in that, said plug-flow device (3) is an auger.
4. batch (-type) fiberizer according to claim 3; It is characterized in that; Said power transmission shaft (5) runs through said fixed millstone (1) and is connected with said movable grinding disc (2); Said plug-flow device (3) is connected with said movable grinding disc (2), and said plug-flow device (3) and said power transmission shaft (5) are positioned at the both sides of said movable grinding disc (2).
5. utilize the technology of the arbitrary described batch (-type) paste mill grinding of claim 1-4, comprising:
(1) primary clearance between adjustment movable grinding disc (2) and the fixed millstone (1) is 0.5-5mm; Close said grout outlet; Slurries are sent in the said fiberizer housing (4); Open said plug-flow device (3) and said movable grinding disc (2), said plug-flow device (3) promotion slurries get into said grinding clearance and carry out defibrination;
(2) reduce gap between movable grinding disc (2) and the fixed millstone (1) one by one, be reduced to 0.005-0.1mm until said gap;
(3) close said plug-flow device (3) and said movable grinding disc (2), open said grout outlet and emit the good paper pulp of mill.
6. the technology of defibrination according to claim 5 is characterized in that, comprising:
(1) primary clearance between adjustment movable grinding disc (2) and the fixed millstone (1) is 0.5mm; With concentration is that the chemical wood pulp of 5-20wt% is sent in the said fiberizer housing (4); Open said plug-flow device (3) and said movable grinding disc (2); Said plug-flow device (3) promotion slurries get into said grinding clearance and carry out defibrination, and the defibrination time is 5-10min;
(2) said gap is transferred to 0.4mm, operation 5-10min;
(3) after step (2) finished, every separated 5-10min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(4) after step (3) finished, every separated 5-10min reduced 0.01mm with said gap, and 5-10min reruns after said gap transfers to 0.01mm;
(5) close said plug-flow device (3) and said movable grinding disc (2), open said grout outlet and emit the good paper pulp of polishing.
7. the technology of defibrination according to claim 5 is characterized in that, comprising:
(1) primary clearance between adjustment movable grinding disc (2) and the fixed millstone (1) is 2.5mm; Concentration is the branch silk wood chip slurry of 5-20wt% or divides silk blade slurry to send in the said fiberizer housing (4); Open said plug-flow device (3) and said movable grinding disc (2); Said plug-flow device (3) promotion slurries get into said grinding clearance and carry out defibrination, and every separated 5-10min reduces 0.3-0.5mm with said gap, transfers to 1mm until said gap;
(2) after step (1) finished, every separated 5-10min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(3) after step (2) finished, every separated 5-10min reduced 0.01mm with said gap, and 5-10min reruns after said gap transfers to 0.01mm;
(4) close said plug-flow device (3) and said movable grinding disc (2), open said grout outlet and emit the good paper pulp of polishing.
8. the technology of defibrination according to claim 5 is characterized in that, comprising:
(1) primary clearance between adjustment movable grinding disc (2) and the fixed millstone (1) is 3-5mm; With concentration is that wood chip or the slurry person blade slurry of 5-20wt% is sent in the said fiberizer housing (4); Open said plug-flow device (3) and said movable grinding disc (2); Said plug-flow device (3) promotion slurries get into said grinding clearance and carry out defibrination, and every separated 5-10min reduces 0.2-0.5mm with said gap, transfers to 1mm until said gap;
(2) after step (1) finished, every separated 5-10min reduced 0.1mm with said gap, transfers to 0.1mm until said gap;
(3) after step (2) finished, every separated 5-10min reduced 0.01mm with said gap, and 5-10min reruns after said gap transfers to 0.01mm;
(4) close said plug-flow device (3) and said movable grinding disc (2), open said grout outlet and emit the good paper pulp of polishing.
9. according to the technology of claim 7 or 8 described defibrinations, it is characterized in that, in said step (1), in said slurries, add bleaching agent and chemical treatments.
10. the technology of defibrination according to claim 9 is characterized in that, said bleaching agent and chemical treatments are H
2O
2And NaOH.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210285953.8A CN102828432B (en) | 2012-08-13 | 2012-08-13 | Batch refiner and refining process thereof |
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| CN201210285953.8A CN102828432B (en) | 2012-08-13 | 2012-08-13 | Batch refiner and refining process thereof |
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| CN114277600A (en) * | 2021-12-22 | 2022-04-05 | 浙江华章科技有限公司 | Safe operation control method for pulping machine |
| CN114318925A (en) * | 2021-12-22 | 2022-04-12 | 浙江华章科技有限公司 | Pulping machine |
| CN114438809A (en) * | 2021-12-22 | 2022-05-06 | 浙江华章科技有限公司 | Control method of pulping machine |
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| CN114438809A (en) * | 2021-12-22 | 2022-05-06 | 浙江华章科技有限公司 | Control method of pulping machine |
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| CN114318925B (en) * | 2021-12-22 | 2023-06-06 | 浙江华章科技有限公司 | Operation method of pulping machine |
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| CN102828432B (en) | 2015-05-13 |
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