CN110396845A - A kind of tail slurry recovery and processing system for pulping and paper-making - Google Patents
A kind of tail slurry recovery and processing system for pulping and paper-making Download PDFInfo
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- CN110396845A CN110396845A CN201910641068.0A CN201910641068A CN110396845A CN 110396845 A CN110396845 A CN 110396845A CN 201910641068 A CN201910641068 A CN 201910641068A CN 110396845 A CN110396845 A CN 110396845A
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- feed tube
- paper pulp
- slurry
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
- D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/023—Stationary screen-drums
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
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- Mechanical Engineering (AREA)
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Abstract
The present invention discloses a kind of tail slurry recovery and processing system for pulping and paper-making, including paper pulp pond, the output end in paper pulp pond is connect with the input terminal of the first screening plant by pipeline, the output end of first screening plant is connect with the input terminal of light dregs-removing device and dehydration device respectively by pipeline, wherein the output end of light dregs-removing device is connect with the input terminal of good slurry collecting tank and dehydration device respectively by pipeline, the output end of dehydration device is connected by the input terminal of pipeline and heat treatment tank, and the output end of heat treatment tank is connect by pipeline with the input terminal of the second screening plant；Tail slurry recovery and processing system is when handling paper pulp in the present invention, sieve diameter first by promoting the first screening plant, the light impurity of medium-small diameter is set to pass through the first screening plant, then the paper pulp containing medium-small diameter light impurity is handled by lightweight slag remover again, when handling tail slurry, the recovery efficiency of fibre fractionation in tail slurry is greatly improved.
Description
Technical field
The invention belongs to pulp and paper technology fields, specifically, being related to a kind of tail slurry recovery processing for pulping and paper-making
System.
Background technique
Enterprises in pulp and paper industry at present needs to remove in pulping process the light impurities such as the gluing object in slurry, paper grade (stock) paper
Light impurity in slurry is a kind of soft, it is more difficult to which the light impurity of removal, density are less than slurry, and universal technique way is to pass through
The method of screening takes away the impurity such as gluing object from tail slurry, so that it is guaranteed that slurrying semi-finished product stock quality, is copied with meeting paper machine
The appearance requirement made.
But the method by simply reducing filter screen screen size, although the quality for the good slurry being able to ascend,
And structure is simple, but also can make a large amount of fibre fractionation that can not pass through due to reducing filter screen screen size, so as to cause tail
The content of fiber greatly promotes in slurry, therefore directly increases a time paper material cost, and a large amount of gluing objects are mixed with fiber
It will cause serious environmental pollution after tail slurry discharge；In the prior art, also by lightweight slag remover come to paper pulp
Reason, compared to the method for high pressure sieving, with high-efficient, is easy to clear so that the light impurity ingredient in paper pulp is separated discharge
The advantages of reason, but due in paper pulp gluing object impurity can adhere to a large amount of fibre fractionation, by lightweight slag remover handle tail
Still containing containing more bulky grain, being stained with a large amount of fibrous raw materials in a large amount of fibre fractionation and obtained good slurry in slurry
Light component can not be separated；How fiber content in tail slurry is reduced during pulping and paper-making, and being promoted in tail slurry can be recycled
It is one of current problem to be solved, in order to solve this problem, the present invention provides following using the recovery efficiency of part
Technical solution.
Summary of the invention
The purpose of the present invention is to provide a kind of tail slurry recovery and processing systems for pulping and paper-making.
The technical problem to be solved in the invention are as follows:
1, it in the paper technology of the prior art, needs to handle paper pulp to remove the wax in paper pulp, polyethylene and heat
The light impurities such as melten gel, wherein the simplest method is exactly to be filtered by reducing screen-aperture to paper pulp, but reduce sieve
Fibre composition detention a large amount of in paper pulp can equally be contained a large amount of fibre composition, made by hole aperture in the tail slurry caused
At the difficulty of rising and the tail slurry waste treatment of paper cost, paper pulp is handled to remove paper pulp also by slag remover
In light impurities, but this method will lead to the bulky grain remained in good slurry, and absorption, which is cohered, a large amount of fiber groups
The light impurity quantity divided is more, reduces the quality of good slurry.
2, in the prior art, when being handled by lightweight slag remover paper pulp, light impurities are concentrated by being vortexed
The light impurity of aggregation is absorbed discharge by vortex center, then the pipeline by extending to vortex center position, in the prior art, is inhaled
The pipeline of the light impurity of pinching collection extends to vortex center by the top of scummer, but due to the content of light impurity in paper pulp with
And paper pulp enters the speed of slag remover can all influence the speed that light impurity is assembled in vortex, therefore in the actual operation process
Will appear absorb light impurity speed it is slower when, the light impurity aggregate amount in vortex can increasing, and when infiltration rate is very fast, suction
The pipeline for receiving light impurity can be in idling conditions for a long time, and according to whirlpool depth, it is also necessary to adjust absorb aggregation in time
The pipeline location of light impurity, to prevent a large amount of fibrous raw material slurry to be discharged as tail slurry.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of tail slurry recovery and processing system for pulping and paper-making, including paper pulp pond, the output end in paper pulp pond and the first sieve
The input terminal of screening device is connected by pipeline, the output end of the first screening plant by pipeline respectively with light dregs-removing device and de-
The input terminals of water installations connects, wherein the output end of light dregs-removing device by pipeline respectively with good slurry collecting tank and dehydration device
The output end of input terminal connection, dehydration device is connected by the input terminal of pipeline and heat treatment tank, and the output end of heat treatment tank is logical
Piping is connect with the input terminal of the second screening plant；
The screen cylinder gap size of first screening plant is improved to 0.35mm, makes a large amount of gluing object etc. in pulp fiber
Light impurity can enter light dregs-removing device by screen cylinder；
The light dregs-removing device carries out centrifugal treating for that will pass through the first processing paper pulp that the first screening plant is handled,
To be partially separated out heel row to dehydration device for the lesser light impurity of density in paper pulp；
The dehydration device is used to carry out the obtained tail slurry handled by the first screening plant and light dregs-removing device
For dehydration to promote the solid content in tail slurry, dewatered tail slurry arranges heat treated pond, in one embodiment of the invention,
The dehydration device is double roller high-speed pulp washer；
The heat treatment tank makes in tail slurry for heating to the tail slurry part Jing Guo dehydration device dehydration
The light impurities dispersion such as wax, polyethylene and hot melt adhesive；
The screen cylinder gap size of second screening plant is 0.15mm, can be by the fiber in the tail slurry through Overheating Treatment
Ingredient is separated with the light impurity of dissolution dispersion；
Included the following steps: by the method that the tail slurry recovery and processing system handles paper grade pulp
Step 1: the paper pulp in paper pulp pond is imported in the first screening plant, it will be big in paper pulp by the first screening plant
The light impurity of particle screens out, thus by paper pulp be divided into the tail slurry containing bulky grain light impurity and containing a large amount of small particles it is gently miscellaneous
The first processing paper pulp of matter, wherein the paper pulp of the light impurity containing a large amount of small particles enters light dregs-removing device, it is light containing bulky grain
The tail slurry of impurity enters in dehydration device；
Step 2: light dregs-removing device handles the first processing paper pulp that previous step is handled, paper pulp will be just handled
In light impurity remove, and obtained good slurry is imported into good slurry collecting tank, obtained light impurity mixture is imported into dehydration device
In；
Step 3: being carried out dehydrating by dehydration device to tail slurry, it is preferred that the solid content of dewatered tail slurry is greater than
10%, dewatered tail slurry is discharged into heat treatment tank；
Step 4: solvent is added in heat treated pond, wherein tail slurry when collecting in heat treatment tank has the tail slurry of predetermined amount
Volume ratio with solvent is 20:1-2, is heated later to the mixed liquor of tail slurry and solvent, and heating temperature is 70-95 DEG C；
The solvent is toluene, dimethylbenzene is uniformly mixed to get according to volume ratio 3:1-10；
Since the light impurity in tail slurry is mainly the substances such as wax, polyethylene and hot melt adhesive, into tail slurry to be processed
Solvent is added to be mixed and heated, dissolution, the melting dispersion of light impurity in tail slurry can be promoted, when shortening heat treatment
Between, it reduces and heats the too long damage to fibre composition in tail slurry, to promote the quality of fiber after the recovery in tail slurry；
Step 5: the tail slurry that previous step is handled is screened by the second screening plant, fibre therein is collected
Ingredient is tieed up, light impurity, solvent and water are discharged, to obtain the tail slurry of low fibre content, improve fibre composition in tail slurry
Recovery utilization rate.
The method that first processing paper pulp is handled by light dregs-removing device in step 2 are as follows:
S1, driving sliding feed tube move up, and block sliding feed tube completely the material guide hole in fixed feed tube, close
Grout outlet opens deslagging device, will just handle paper pulp and be imported in slagging-off cylinder by inlet pipe with certain speed；
S2, when remove the gred cylinder in paper pulp by be vortexed enhancing cylinder be totally submerged when, driving sliding feed tube move down, make part lead
Expect that hole and sliding feed tube are connected, and the part material guide hole connected with sliding feed tube is not submerged by paper pulp, is opened grout outlet, is made
Obtained good slurry is exported by grout outlet.
The light dregs-removing device includes slagging-off cylinder, and the inlet pipe on slagging-off cylinder top is arranged in, and slagging-off cylinder lower part is arranged in
Grout outlet, and it is mounted on the deslagging device of slagging-off cylinder bottom, wherein the normal section circle of inlet pipe and slagging-off cylinder is tangent；
The deslagging device includes the enhancing cylinder that is vortexed, the fixation being rotatablely connected with the enhancing cylinder that is vortexed by mechanical seal structure
Feed tube and the sliding feed tube being slidably connected with fixed feed tube；
The vortex enhances cylinder hollow cylinder structure, is fixedly installed rotating ring and annular tooth on the outer wall for the enhancing cylinder that is vortexed
Wheel, the enhancing cylinder that is vortexed pass through rotating ring and the stationary ring cooperation for being mounted on slagging-off cylinder bottom, realize between deslagging device and slagging-off cylinder
Mechanical seal, deslagging device and slagging-off cylinder between by mechanical seal structure be rotatablely connected, mesoscale eddies enhancing cylinder with rotating ring
For separator bar, inside of a part in slagging-off cylinder, a part is in the outside of slagging-off cylinder, and the enhancing cylinder that is vortexed, which is in, to remove the gred in cylinder
Helical-blade is installed, ring gear is mounted on the part that the enhancing cylinder that is vortexed is in outside slagging-off cylinder, deslagging device on the part in portion
It is rotated by motor and gear conducting structure with ring gear cooperation, thus by helical-blade to the paper pulp in slagging-off cylinder
It is stirred；
The fixed feed tube is cylindrical structure open at one end, wherein silent one end setting of fixed feed tube is removing the gred
In cylinder, and fixed feed tube is provided with material guide hole on the side wall of silent one end, and the sliding feed tube is the cylinder of both ends open
Shape structure, the one end for sliding feed tube are inserted into fixed feed tube and are slidably connected with fixed feed tube, slide the other end of feed tube
It is connect by being mounted on side wall link block with telescopic cylinder, sliding feed tube is controlled in fixed feed tube by telescopic cylinder
Sliding, and slide feed tube and be connected with hose far from one end of slagging-off cylinder, the tail slurry of collection is arranged to collection tail slurry by hose
Device in.
Beneficial effects of the present invention:
1, tail slurry recovery and processing system is when handling paper pulp in the present invention, first by promoting the first screening plant
Sieve diameter, thus enable a large amount of medium-small diameters light impurity pass through the first screening plant, by paper pulp be divided into containing largely
The tail slurry part of light impurity and just processing paper pulp, then again by lightweight slag remover come to containing a large amount of medium-small diameter light impurities
Just processing paper pulp is handled, and paper pulp is divided into the tail slurry part containing a large amount of light impurities and good slurry part, and to tail slurry into
It is by the way that solvent is added and is heated so that the light impurity group in tail slurry is divided into liquid, then passes through the second sieve when row processing
Screening device separates light impurity with the fibre fractionation in tail slurry, to greatly improve the recovery efficiency of fibre fractionation in tail slurry.
2, the light impurity point that the present invention is handled first processing paper pulp by lightweight slag remover will just handle in paper pulp
It separates out and, sprayed into slagging-off cylinder with certain initial velocity by inlet pipe specifically, paper pulp will be handled just, then accelerated by deslagging device
The vortex of paper pulp, so that separating effect is promoted, meanwhile, the light impurity being gathered in being vortexed passes through fixed feed tube and sliding is led
Barrel can be discharged in time.
Detailed description of the invention
Present invention is further described in detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is easy structure schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of light dregs-removing device；
Fig. 3 is the structural schematic diagram of deslagging device；
Fig. 4 is the partial structural diagram of deslagging device.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of tail slurry recovery and processing system for pulping and paper-making, as shown in Figure 1, including paper pulp pond, the output in paper pulp pond
End is connect with the input terminal of the first screening plant by pipeline, and the output end of the first screening plant is removed with lightweight respectively by pipeline
Slag device and the input terminal of dehydration device connection, wherein the output end of light dregs-removing device by pipeline respectively with good slurry collecting tank and
The input terminal of dehydration device connects, and the output end of dehydration device is connected by the input terminal of pipeline and heat treatment tank, heat treatment tank
Output end connect with the input terminal of the second screening plant by pipeline；
The screen cylinder gap size of first screening plant is improved to 0.35mm, makes a large amount of gluing object etc. in pulp fiber
Light impurity can enter light dregs-removing device by screen cylinder；
The light dregs-removing device carries out centrifugal treating for that will pass through the first processing paper pulp that the first screening plant is handled,
To be partially separated out heel row to dehydration device for the lesser light impurity of density in paper pulp；
The dehydration device is used to carry out the obtained tail slurry handled by the first screening plant and light dregs-removing device
For dehydration to promote the solid content in tail slurry, dewatered tail slurry arranges heat treated pond, in one embodiment of the invention,
The dehydration device is double roller high-speed pulp washer；
The heat treatment tank makes in tail slurry for heating to the tail slurry part Jing Guo dehydration device dehydration
The light impurities dispersion such as wax, polyethylene and hot melt adhesive；
The screen cylinder gap size of second screening plant is 0.15mm, can be by the fiber in the tail slurry through Overheating Treatment
Ingredient is separated with the light impurity of dissolution dispersion；
Included the following steps: by the method that the tail slurry recovery and processing system handles paper grade pulp
Step 1: the paper pulp in paper pulp pond is imported in the first screening plant, it will be big in paper pulp by the first screening plant
The light impurity of particle screens out, thus by paper pulp be divided into the tail slurry containing bulky grain light impurity and containing a large amount of small particles it is gently miscellaneous
The first processing paper pulp of matter, wherein the paper pulp of the light impurity containing a large amount of small particles enters light dregs-removing device, it is light containing bulky grain
The tail slurry of impurity enters in dehydration device；
Step 2: light dregs-removing device handles the first processing paper pulp that previous step is handled, paper pulp will be just handled
In light impurity remove, and obtained good slurry is imported into good slurry collecting tank, obtained light impurity mixture is imported into dehydration device
In；
Step 3: being carried out dehydrating by dehydration device to tail slurry, it is preferred that the solid content of dewatered tail slurry is
15%, dewatered tail slurry is discharged into heat treatment tank；
Step 4: solvent is added in heat treated pond, wherein tail slurry when collecting in heat treatment tank has the tail slurry of predetermined amount
Volume ratio with solvent is 20:1.5, is heated later to the mixed liquor of tail slurry and solvent, and heating temperature is 85 DEG C；
The solvent is that toluene and dimethylbenzene are uniformly mixed to get according to volume ratio 1:1；
Since the light impurity in tail slurry is mainly the substances such as wax, polyethylene and hot melt adhesive, into tail slurry to be processed
Solvent is added to be mixed and heated, dissolution, the melting dispersion of light impurity in tail slurry can be promoted, when shortening heat treatment
Between, it reduces and heats the too long damage to fibre composition in tail slurry, to promote the quality of fiber after the recovery in tail slurry；
Step 5: the tail slurry that previous step is handled is screened by the second screening plant, fibre therein is collected
Ingredient is tieed up, light impurity, solvent and water are discharged, to obtain the tail slurry of low fibre content, improve fibre composition in tail slurry
Recovery utilization rate.
The method that first processing paper pulp is handled by light dregs-removing device in step 2 are as follows:
S1, driving sliding feed tube move up, and block sliding feed tube completely the material guide hole in fixed feed tube, close
Grout outlet opens deslagging device, will just handle paper pulp and be imported in slagging-off cylinder by inlet pipe with certain speed；
S2, when remove the gred cylinder in paper pulp by be vortexed enhancing cylinder be totally submerged when, driving sliding feed tube move down, make part lead
Expect that hole and sliding feed tube are connected, and the part material guide hole connected with sliding feed tube is not submerged by paper pulp, is opened grout outlet, is made
Obtained good slurry is exported by grout outlet.
As shown in Fig. 2, the light dregs-removing device includes slagging-off cylinder 1, the inlet pipe 11 on slagging-off 1 top of cylinder, setting are set
In the grout outlet 12 of 1 lower part of cylinder that removes the gred, and it is mounted on the deslagging device 2 of slagging-off 1 bottom of cylinder, wherein inlet pipe 11 and slagging-off cylinder
1 normal section circle is tangent；
As shown in Figure 3, Figure 4, the deslagging device 2 includes the enhancing cylinder 21 that is vortexed, and is passed through with the enhancing cylinder 21 that is vortexed mechanical close
The fixation feed tube 24 that seal structure 28 is rotatablely connected and the sliding feed tube 25 being slidably connected with fixed feed tube 24；
The vortex enhances 21 hollow cylinder structure of cylinder, the rotating ring 22 and ring being fixedly installed on the outer wall for the enhancing cylinder 21 that is vortexed
Shape gear 23, the enhancing cylinder 21 that is vortexed pass through rotating ring 22 and the stationary ring cooperation for being mounted on slagging-off 1 bottom of cylinder, realize deslagging device 2
With the mechanical seal between slagging-off cylinder 1, it is rotatablely connected between deslagging device 2 and slagging-off cylinder 1 by mechanical seal structure, wherein whirlpool
Rotation enhancing cylinder 21 is separator bar with rotating ring 22, inside of a part in slagging-off cylinder 1, outside of a part in slagging-off cylinder 1,
Helical-blade is installed, ring gear 23 is mounted on vortex enhancing cylinder on the part that mesoscale eddies enhancing cylinder 21 is in inside slagging-off cylinder 1
21 part outside slagging-off cylinder 1, deslagging device 2 are carried out by motor and the cooperation of gear conducting structure and ring gear 23
Rotation only passes through inlet pipe 11 compared to traditional scummer to be stirred by helical-blade to the paper pulp in slagging-off cylinder 1
The initial velocity of the paper pulp of penetrating is vortexed to generate, and further acceleration centrifugation can be carried out to paper pulp, to make separating effect more
It is good；
The fixed feed tube 24 is cylindrical structure open at one end, wherein silent one end setting of fixed feed tube 24 exists
It removes the gred in cylinder 1, and fixed feed tube 24 is provided with material guide hole 26 on the side wall of silent one end, the sliding feed tube 25 is two
The tubular structure of end opening, one end of sliding feed tube 25 is inserted into fixed feed tube 24 and is slidably connected with fixed feed tube 24, sliding
The other end of dynamic feed tube 25 is connect by being mounted on link block 27 on side wall with telescopic cylinder, is controlled and is slided by telescopic cylinder
Feed tube 25 is slided in fixed feed tube 24, and is slided feed tube 25 and be connected with hose far from one end of slagging-off cylinder 1, by soft
Pipe arranges the tail slurry of collection into the device for collecting tail slurry；
The present invention at work, is imitated by the high speed rotation for the enhancing cylinder 21 that is vortexed to reinforce the centrifugation of paper pulp in slagging-off cylinder 1
Fruit, to promote separating effect, when installation, adjusts the height of fixed feed tube 24, makes fixed feed tube 24 when generating whirlpool,
26 part of material guide hole in fixed feed tube 24 is not submerged by between；
When the light impurity assembled in whirlpool reaches certain amount, sliding feed tube 25 is moved down, makes light impurity by leading
Expect that hole 26, sliding feed tube 25 and hose export, and according to whirlpool depth, it can also be by adjusting fixed feed tube 24 and sliding
The position of feed tube 25 realizes that unloading position and discharging speed to light impurity are adjusted, can in time by the light of generation
Impurity discharge.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (6)
1. a kind of tail slurry recovery and processing system for pulping and paper-making, which is characterized in that including paper pulp pond, the output end in paper pulp pond
It is connect with the input terminal of the first screening plant by pipeline, the output end of the first screening plant is removed the gred with lightweight respectively by pipeline
Device and the input terminal of dehydration device connection, wherein the output end of light dregs-removing device by pipeline respectively with good slurry collecting tank with take off
The input terminal of water installations connects, and the output end of dehydration device is connected by the input terminal of pipeline and heat treatment tank, heat treatment tank
Output end is connect by pipeline with the input terminal of the second screening plant；
The screen cylinder gap size of first screening plant is 0.35mm；
The light dregs-removing device carries out centrifugal treating for that will pass through the first processing paper pulp that the first screening plant is handled, thus
The lesser light impurity of density in paper pulp is partially separated out heel row to dehydration device；
The dehydration device is used to be dehydrated the obtained tail slurry handled by the first screening plant and light dregs-removing device
To promote the solid content in tail slurry, dewatered tail slurry arranges heat treated pond for processing；
The heat treatment tank makes in tail slurry for heating to the tail slurry part Jing Guo dehydration device dehydration
The dispersion of the light impurities such as wax, polyethylene and hot melt adhesive；
The screen cylinder gap size of second screening plant is 0.15mm, for will be through the fibre composition in the tail slurry of Overheating Treatment
It is separated with the light impurity of dissolution dispersion.
2. a kind of tail slurry recovery and processing system for pulping and paper-making according to claim 1, which is characterized in that described de-
Water installations are double roller high-speed pulp washer.
3. a kind of tail slurry recovery and processing system for pulping and paper-making according to claim 1, which is characterized in that the tail slurry
The method that recovery and processing system handles paper grade pulp includes the following steps:
Step 1: the paper pulp in paper pulp pond is imported in the first screening plant, by the first screening plant by bulky grain in paper pulp
Light impurity screen out, so that paper pulp is divided into the tail slurry containing bulky grain light impurity and containing a large amount of small particles light impurities
Just processing paper pulp contains bulky grain light impurity wherein the paper pulp of the light impurity containing a large amount of small particles enters light dregs-removing device
Tail slurry enter in dehydration device；
Step 2: light dregs-removing device handles the first processing paper pulp that previous step is handled, it will be in first processing paper pulp
Light impurity removes, and obtained good slurry is imported good slurry collecting tank, and obtained light impurity mixture is imported in dehydration device；
Step 3: being carried out dehydrating by dehydration device to tail slurry, it is preferred that the solid content of dewatered tail slurry is greater than
10%, dewatered tail slurry is discharged into heat treatment tank；
Step 4: solvent is added when collecting in heat treatment tank has the tail slurry of predetermined amount, in heat treated pond, wherein tail slurry with it is molten
The volume ratio of agent is 20:1-2, is heated later to the mixed liquor of tail slurry and solvent, and heating temperature is 70-95 DEG C；
Step 5: the tail slurry that previous step is handled is screened by the second screening plant, collect fiber therein at
Point, light impurity, solvent and water are discharged, to obtain the tail slurry of low fibre content.
4. a kind of tail slurry recovery and processing system for pulping and paper-making according to claim 3, which is characterized in that step 4
Middle solvent is that toluene and dimethylbenzene are uniformly mixed to get according to volume ratio 3:1-10.
5. a kind of tail slurry recovery and processing system for pulping and paper-making according to claim 3, which is characterized in that step 2
In first processing paper pulp is handled by light dregs-removing device method are as follows:
S1, driving sliding feed tube (25) move up, and make to slide feed tube (25) for the material guide hole (26) on fixed feed tube (24)
It blocks, closes grout outlet (12) completely, open deslagging device (2), will just handle paper pulp by inlet pipe (11) with pre-set velocity
It imports in slagging-off cylinder (1)；
S2, when remove the gred cylinder (1) in paper pulp by be vortexed enhancing cylinder (21) be totally submerged when, driving sliding feed tube (25) move down,
Connect part material guide hole (26) and sliding feed tube (25), and the part material guide hole (26) connected with sliding feed tube (25) is not
It is submerged, opens grout outlet (12) by paper pulp, the good slurry made is exported by grout outlet (12).
6. a kind of tail slurry recovery and processing system for pulping and paper-making according to claim 3, which is characterized in that described light
Matter scummer includes slagging-off cylinder (1), and the inlet pipe (11) on slagging-off cylinder (1) top is arranged, and going out in slagging-off cylinder (1) lower part is arranged
Slurry pipe (12), and be mounted on the deslagging device (2) of slagging-off cylinder (1) bottom, wherein inlet pipe (11) with remove the gred cylinder (1) abscissus
Face circle is tangent；
The deslagging device (2) includes enhancing cylinder (21) that is vortexed, and is turned with enhancing cylinder (21) is vortexed by mechanical seal structure (28)
The fixation feed tube (24) of dynamic connection and the sliding feed tube (25) being slidably connected with fixed feed tube (24)；
Vortex enhancing cylinder (21) is hollow cylinder structure, is fixedly installed rotating ring (22) on the outer wall for enhancing cylinder (21) that is vortexed
With ring gear (23), enhancing cylinder (21) that is vortexed is cooperated with the stationary ring for being mounted on slagging-off cylinder (1) bottom by rotating ring (22), is realized
Mechanical seal between deslagging device (2) and slagging-off cylinder (1) passes through mechanical seal knot between deslagging device (2) and slagging-off cylinder (1)
Structure rotation connection, mesoscale eddies enhance cylinder (21) with rotating ring (22) be separator bar, a part in slagging-off cylinder (1) inside, one
It is partially in the outside of slagging-off cylinder (1), enhancing cylinder (21) that is vortexed is on the internal part of slagging-off cylinder (1) and is equipped with helical-blade,
Ring gear (23) is mounted on enhancing cylinder (21) that is vortexed and is in the external part of slagging-off cylinder (1), deslagging device (2) by motor with
And gear conducting structure and ring gear (23) cooperation are rotated, thus by helical-blade to the paper pulp in slagging-off cylinder (1) into
Row stirring；
The fixed feed tube (24) is cylindrical structure open at one end, wherein silent one end setting of fixed feed tube (24) exists
It removes the gred in cylinder (1), and fixed feed tube (24) are provided with material guide hole (26) on the side wall of silent one end, the sliding feed tube
It (25) is the tubular structure of both ends open, one end of sliding feed tube (25) is inserted into fixed feed tube (24) and fixes feed tube
(24) it being slidably connected, the other end of sliding feed tube (25) is connect by being mounted on link block on side wall (27) with telescopic cylinder,
Sliding feed tube (25) sliding in fixed feed tube (24) is controlled by telescopic cylinder, and slides feed tube (25) far from slagging-off
One end of cylinder (1) is connected with hose, is arranged the tail slurry of collection into the device for collecting tail slurry by hose.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910641068.0A CN110396845B (en) | 2019-07-16 | 2019-07-16 | Tail pulp recovery processing system for pulping and papermaking |
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| CN201910641068.0A CN110396845B (en) | 2019-07-16 | 2019-07-16 | Tail pulp recovery processing system for pulping and papermaking |
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| CN110396845A true CN110396845A (en) | 2019-11-01 |
| CN110396845B CN110396845B (en) | 2021-08-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA975327A (en) * | 1972-01-28 | 1975-09-30 | Beloit Corporation | Cyclone separator with mass rotation enhancing means |
| CN1395003A (en) * | 2001-07-05 | 2003-02-05 | 李风宁 | Method for removing adhesive matter from regenerated pulp |
| CN202730526U (en) * | 2012-07-17 | 2013-02-13 | 广东理文造纸有限公司 | Light slag separator |
| CN106758475A (en) * | 2016-12-29 | 2017-05-31 | 广西贵糖（集团）股份有限公司 | The treatment recovery method of the tail slurry that slurrying screening process in paper mill is produced |
| CN208899234U (en) * | 2018-09-21 | 2019-05-24 | 宜良创宇纸业有限公司 | A kind of waste paper purchase reprocessing light dregs-removing device |
-
2019
- 2019-07-16 CN CN201910641068.0A patent/CN110396845B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA975327A (en) * | 1972-01-28 | 1975-09-30 | Beloit Corporation | Cyclone separator with mass rotation enhancing means |
| CN1395003A (en) * | 2001-07-05 | 2003-02-05 | 李风宁 | Method for removing adhesive matter from regenerated pulp |
| CN202730526U (en) * | 2012-07-17 | 2013-02-13 | 广东理文造纸有限公司 | Light slag separator |
| CN106758475A (en) * | 2016-12-29 | 2017-05-31 | 广西贵糖（集团）股份有限公司 | The treatment recovery method of the tail slurry that slurrying screening process in paper mill is produced |
| CN208899234U (en) * | 2018-09-21 | 2019-05-24 | 宜良创宇纸业有限公司 | A kind of waste paper purchase reprocessing light dregs-removing device |
Non-Patent Citations (1)
| Title |
|---|
| 沙力争（主编）: "《造纸技术实用教程》", 31 August 2017, 中国轻工业出版社 * |
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| CN110396845B (en) | 2021-08-03 |
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