CN109577103B - Corrugated paper manufacturing process - Google Patents
Corrugated paper manufacturing process Download PDFInfo
- Publication number
- CN109577103B CN109577103B CN201811527559.4A CN201811527559A CN109577103B CN 109577103 B CN109577103 B CN 109577103B CN 201811527559 A CN201811527559 A CN 201811527559A CN 109577103 B CN109577103 B CN 109577103B
- Authority
- CN
- China
- Prior art keywords
- pulp
- tank
- enters
- slurry
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/12—Making corrugated paper or board
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention provides a corrugated paper manufacturing process, belongs to the technical field of papermaking, and solves the problem that the quality of the existing papermaking process does not reach the standard. The corrugated paper manufacturing process comprises the following steps: putting the waste paper board into a hydrapulper for pulping to form primary pulp; the primary pulp enters a primary pulp tank after passing through a slag remover; performing first-order coarse screening, enabling the obtained good pulp to enter a second-order pulp tank, enabling pulp slag to enter a third-order pulp tank for second-order coarse screening, and enabling the obtained good pulp to enter the second-order pulp tank again; the slurry enters a desander from a secondary slurry tank, and the obtained good slurry enters a fourth-level slurry tank; the pulp enters a fiber grading sieve from a fourth-stage pulp tank for screening, long-fiber pulp enters a fifth-stage pulp tank for standby, and short-fiber pulp enters a multi-disc thickener and then enters a sixth-stage pulp tank for standby; the pulp in the five-level pulp tank and the six-level pulp tank is conveyed outwards according to the proportion, and the paper is formed by sequentially passing through a sizing part, a head box, a forming net, a pressing part, a pre-drying part, a sizing part, a post-drying part, a calendaring part, a reeling part and a rewinding part. The invention has the characteristic of good production quality.
Description
Technical Field
The invention belongs to the technical field of papermaking, and relates to a corrugated paper manufacturing process.
Background
Cartons in the market are basically made of corrugated paperboards, are the most widely used paper container packages and are widely used for transport packaging. Corrugated board is formed by bonding surface paper, lining paper, core paper and corrugated paper processed into corrugated flutes, generally divided into single corrugated paper board and double corrugated paper board, and has the advantages of low cost, light weight, high strength, excellent printing adaptability, convenient storage and transportation, etc., and most of the corrugated paper board can be recycled.
The making process of corrugated paper is similar to that of common paper, and includes the main steps of pulping, compounding, papermaking, processing, etc. the first step of making paper is pulping, which converts wood or waste paper into paper pulp, and domestic waste paper has relatively short fiber length and thus low index and no market competitiveness. Therefore, most of corrugated paper in the market adopts imported waste paper (American waste) as a raw material, the paper fiber is relatively long, and the produced paper has high strength and better meets the use requirement.
However, as the imported waste paper is further compressed into the imported waste paper, the difficulty of producing corrugated paper is increased without the imported waste paper. In addition, in the prior art, excessive beating or uneven beating occurs in the beating stage, which causes greater damage and waste of fibers, causes larger difference of raw materials, and further causes poor quality of finished paper products.
In conclusion, in order to overcome the defects of the existing papermaking process, the corrugated paper manufacturing process disclosed by the invention is reasonable in design and good in production quality.
Disclosure of Invention
The invention provides a corrugated paper manufacturing process which reduces the amount of beautiful waste and produces corrugated paper meeting the index requirements, aiming at solving the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: a corrugated paper manufacturing process comprises the following steps:
placing the waste paper board into a hydrapulper for pulping to form primary pulp;
the primary pulp forms pulp after passing through a slag separator and enters a primary pulp tank;
performing first-order coarse screening on the slurry, enabling the obtained fine slurry to enter a second-order slurry tank, enabling the slurry slag to enter a third-order slurry tank, further performing second-order coarse screening, and enabling the obtained fine slurry to enter the second-order slurry tank again;
the slurry enters a desander from a secondary slurry tank for desanding, and the obtained good slurry enters a fourth-level slurry tank;
the pulp enters a fiber grading sieve from a fourth-stage pulp tank for screening, long-fiber pulp enters a fifth-stage pulp tank for later use, and short-fiber pulp enters a multi-disc thickener for concentration and then further enters a sixth-stage pulp tank for later use;
the corresponding pulp in the five-level pulp tank and the six-level pulp tank is conveyed outwards according to a specified proportion, and finally the paper is formed through a sizing part, a head box, a forming net, a pressing part, a pre-drying part, a sizing part, a post-drying part, a calendaring part, a winding part and a rewinding part in sequence.
As a further improvement of the scheme, in the first step, one part of pulp and slag in the hydrapulper is discharged outwards, and the other part of pulp and slag enters the impurity separator to obtain good pulp, and further enters the slag remover together with the primary pulp.
As a further improvement of the scheme, one part of pulp and slag in the impurity separator is discharged outwards, the other part of pulp and slag enters the cylindrical sieve for screening and the like until good pulp is obtained and enters the hydrapulper again, and the pulp and slag are discharged.
As a further improvement of the scheme, in the third step, one part of the pulp residue after the second-order coarse screening enters the first-order pulp tank, and the other part of the pulp residue enters the overflow tank and then enters the first-order pulp tank again.
As another improvement of the scheme, the residual pulp in the overflow tank enters a fiber separator, the obtained good pulp enters a primary pulp tank, and the pulp residue enters a slag extractor.
As a further improvement of the scheme, the good pulp obtained after the treatment of the slag extractor enters the primary pulp tank, and the pulp slag is discharged.
As another improvement of the scheme, in the fourth step, the slurry in the fourth-stage slurry pool also comprises good slurry input from the volt-damage pool and the dry-damage pool.
As a further improvement of the scheme, the hydraulic pulper comprises a groove body, an impeller is arranged in the groove body, a motor is arranged outside the hydraulic pulper and drives the impeller to rotate, and a discharge pipe is connected to the bottom of the groove body and is located below the impeller.
As a further improvement of the scheme, a plurality of turbulence ribs are uniformly distributed around the impeller, each turbulence rib extends to the impeller from the inner wall of the groove body, and the turbulence ribs are arranged in a right-angled triangle.
As a further improvement of the scheme, the wall of the tank body is provided with a downward inclined slag discharge pipe in a penetrating way, the discharge pipe is externally connected with a storage tank, and the bottom of the storage tank is connected with two valves in series.
Compared with the prior art, the invention has reasonable design, improves the quality of paper pulp by adjusting the manufacturing process and screening and distributing the paper pulp fibers, and further ensures the quality of finished paper products; in addition, through the structural improvement to the hydrapulper, the efficiency of deslagging is improved, and meanwhile, the time of circulating beating and beating can be reduced, so that the fiber length of paper pulp is ensured, and the high-strength paper can be formed.
Drawings
FIG. 1 is a process flow of the present invention.
Fig. 2 is a schematic view of the structure of the hydropulper of the present invention.
Fig. 3 is a schematic view of fig. 2 from another perspective.
In the figure, 10, a trough body; 11. an impeller; 12. a discharge pipe; 13. a turbulence rib; 14. a slag discharge pipe; 15. a storage tank; 16. a valve; 20. an electric motor.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
The production process of corrugated paper is divided into the main steps of pulping, modulation, papermaking, processing and the like, wherein the pulping generally converts wood or waste paper into paper pulp, the domestic waste paper fiber is relatively short, so that the index of the produced paper is low, most of the corrugated paper on the market adopts imported waste paper (American waste) as a raw material, the paper fiber is relatively long, and the strength of the produced paper is high.
However, the imported waste paper further compresses the imported waste paper, so that the difficulty of producing corrugated paper is increased; in addition, in the prior art, excessive beating or uneven beating occurs in the beating stage, so that fiber is damaged and wasted, and the quality of finished paper products is poor due to large difference of raw materials.
Therefore, the invention designs a corrugated paper manufacturing process, which improves the quality of paper pulp and further ensures the quality of finished paper products by adjusting the manufacturing process and screening and distributing paper pulp fibers.
Specifically, as shown in fig. 1, the corrugated paper manufacturing process comprises the following steps:
the first step is as follows: placing the waste paper board into a hydrapulper for pulping to form primary pulp;
the second step is that: the primary pulp forms pulp after passing through a slag separator and enters a primary pulp tank;
when the pulping machine works, waste paper boards serving as raw materials are placed into the hydrapulper to be pulped to form initial raw pulp, the raw pulp is conveyed to the slag remover after certain time of pulping, and after slag discharge is finished, slurry with relatively high purity is formed and conveyed to the primary pulp tank.
Preferably, in the first step, a part of pulp residue in the hydropulper is discharged outwards, and the other part of pulp residue enters the impurity separator to obtain good pulp, and further enters the slag separator together with the raw pulp.
And further, one part of pulp and slag in the impurity separator is discharged outwards, the other part of pulp and slag enters the cylindrical screen for screening and the like until good pulp enters the hydrapulper again, and the pulp and slag are discharged.
In the embodiment, the pulp residue output by the hydrapulper during pulping is preferably directly discharged outwards, and a part of pulp residue is conveyed to the impurity separator for screening, so that the obtained good pulp enters the slag separator; and similarly, directly discharging the residual pulp and slag part of the impurity separator, screening the rest pulp and slag part again through a cylindrical screen, continuously pulping the obtained good pulp in a hydrapulper, and directly discharging the pulp and slag at the moment.
The process arrangement can fully pulp the raw materials such as waste paper boards and the like to form required pulp, improve the utilization rate of the raw materials and reduce the cost.
The third step: performing first-order coarse screening on the slurry, enabling the obtained fine slurry to enter a second-order slurry tank, enabling the slurry slag to enter a third-order slurry tank, further performing second-order coarse screening, and enabling the obtained fine slurry to enter the second-order slurry tank again;
and then, screening the pulp twice, wherein the good pulp is conveyed to a secondary pulp tank after the first-order coarse screening, the rest pulp residue is conveyed to a tertiary pulp tank for second-order coarse screening, and the good pulp obtained at the moment is still conveyed to the secondary pulp tank.
Preferably, in the third step, one part of the pulp residue after the second-order coarse screening enters the first-order pulp tank, and the other part of the pulp residue enters the overflow tank and then enters the first-order pulp tank again.
And further, the residual slurry in the overflow tank enters a fiber separator, the obtained good slurry enters a primary slurry tank, and the slurry residue enters a slag extractor.
Preferably, the good pulp obtained after the treatment of the slag extractor enters a primary pulp tank, and the pulp slag is discharged.
Preferably, the pulp residue after the second-order coarse screening enters a first-stage pulp tank to continue corresponding operation, the other part of the pulp residue is conveyed to the first-stage pulp tank from an overflow tank, good pulp separated from the pulp residue in the overflow tank is separated by a fiber separator and enters the first-stage pulp tank again, the pulp residue separated from the fiber separator enters a slag extractor to further remove slag, the pulp residue is directly discharged, and the obtained good pulp also enters the first-stage pulp tank.
The setting can further be filtered the fibre of thick liquids like this, and the screening is abundant, the reduction is extravagant, and the fibre quality of thick liquids is guaranteed in many times the screening, is favorable to the preparation of later stage paper.
The fourth step: the slurry enters a desander from a secondary slurry tank for desanding, and the obtained good slurry enters a fourth-level slurry tank;
the screened pulp passes through the sand remover to remove some residual fine particles in the pulp, so that the purity of the pulp is ensured, and the quality of a paper finished product is improved. The sand removal is three-stage sand removal, and the separated slurry slag is conveyed to a four-stage sand removal device.
It is worth mentioning that, in the fourth step, the slurry in the fourth-stage slurry pool also includes good slurry input from the volt-damage pool and the dry-damage pool.
The pulp making process is also provided with a pulp falling pool and a dry loss pool, wherein the pulp falling pool is a pulp pool arranged below the grid part couch roll, the edges of the pulp can be cut after the pulp is made into paper, the produced paper edges enter the pulp falling pool along the grid to form the pulp again, the purity of the pulp at the moment is high, the pulp can be directly conveyed into the four-level pulp pool, the utilization rate of the pulp is improved, and the cost is reduced.
And after the good pulp in the dry loss tank is conveyed to the fourth-level pulp tank, the residual pulp is conveyed to the seventh-level pulp tank for later use.
The fifth step: the pulp enters a fiber grading sieve from a fourth-stage pulp tank for screening, long-fiber pulp enters a fifth-stage pulp tank for later use, and short-fiber pulp enters a multi-disc thickener for concentration and then further enters a sixth-stage pulp tank for later use.
Preferably, after the high-purity pulp is obtained, the pulp is screened for long and short fibers through a fiber grading screen, the obtained long fibers are conveyed to a five-stage pulp chest for standby, and the rest short fibers are concentrated through a multi-disc thickener and conveyed to a six-stage pulp chest for standby.
And a sixth step: the corresponding pulp in the five-level pulp tank and the six-level pulp tank is conveyed outwards according to a specified proportion, and finally the paper is formed through a sizing part, a head box, a forming net, a pressing part, a pre-drying part, a sizing part, a post-drying part, a calendaring part, a winding part and a rewinding part in sequence.
In this embodiment, after the completion of the pulping process, the transfer amount of the pulp in the fifth-stage pulp chest and the sixth-stage pulp chest is preferably controlled in accordance with a specific ratio between long fibers and short fibers, and the paper is preferably manufactured by passing through the sizing section, the head box, the forming wire, the press section, the pre-drying section, the sizing section, the post-drying section, the calender section, the take-up section, and the rewinding section in this order.
Because the corrugated paper is actually formed by a three-layer paper structure of the surface net, the core net and the bottom net, the proportion of long fibers and short fibers in the surface net is preferably 85%: 15% and the proportion in the core network is 10%: 90% and the proportion in the bottom net is 65%: 35 percent.
As shown in fig. 2 and 3, preferably, the hydropulper includes a tank 10, an impeller 11 is disposed inside the tank 10, a motor 20 is mounted outside the hydropulper and drives the impeller 11 to rotate, a discharge pipe 12 is connected to the bottom of the tank 10, and the discharge pipe 12 is located below the impeller 11.
In this embodiment, the hydraulic pulper is preferably of a vertical structure, the speed reducer is preferably installed at the bottom of the tank body 10 and connected with the impeller 11, the motor 20 is actually connected with the speed reducer through the connecting shaft, the motor 20 drives the impeller 11 in the tank body 10 to rotate after being started, then the raw materials in the tank body 10 are pulped, and the raw pulp is conveyed to the slag remover through the discharge pipe 12 after pulping.
Further, a plurality of turbulence ribs 13 are uniformly distributed around the impeller 11, each turbulence rib 13 extends to the impeller 11 through the inner wall of the groove body 10, and the turbulence ribs 13 are arranged in a right-angled triangle.
It has six vortex muscle 13 to prefer to encircle impeller 11 evenly distributed here, and vortex muscle 13 is right angled triangle, and the right-angle side is laminated with cell body 10 inner wall and cell body 10 bottom respectively, through the setting of vortex muscle 13, can improve the making beating efficiency, reduces the time of making beating, is favorable to keeping the fiber length in the thick liquids, avoids excessively making beating.
Furthermore, a slag discharge pipe 14 which inclines downwards penetrates through the wall of the tank body 10, a storage tank 15 is externally connected with the discharge pipe 12, and two valves 16 are connected at the bottom of the storage tank 15 in series.
In this embodiment, the slag discharge pipe 14 is preferably arranged on the wall of the tank body 10 to discharge the slurry slag in the slurry to the storage tank 15 in time, so as to prevent the slurry slag from remaining in the slurry. This is in 15 bottoms of holding vessel and concatenates and install two valves 16, the during operation can open the valve 16 of top, do benefit to thick liquid sediment and discharge to holding vessel 15, and further pile up 16 departments of below valve, when needs arrange sediment to holding vessel 15, can close the valve 16 of top, open the valve 16 of below, can directly discharge thick liquid sediment this moment, and do not exert an influence to the work of water conservancy pulper, also can control below valve 16 simultaneously and realize regularly arranging the function of sediment, excellent in use effect.
The corrugated paper manufacturing process is reasonable in design, and the quality of paper pulp is improved and the quality of a finished paper product is further ensured by adjusting the manufacturing process and screening and distributing paper pulp fibers; in addition, through the structural improvement to the hydrapulper, the efficiency of deslagging is improved, and meanwhile, the time of circulating beating and beating can be reduced, so that the fiber length of paper pulp is ensured, and the high-strength paper can be formed.
What has been described herein is merely a preferred embodiment of the invention, and the scope of the invention is not limited thereto. Modifications, additions, or substitutions by those skilled in the art to the specific embodiments described herein are intended to be within the scope of the invention.
Claims (5)
1. The corrugated paper manufacturing process is characterized by comprising the following steps: placing the waste paper board into a hydrapulper for pulping to form primary pulp; the primary pulp forms pulp after passing through a slag separator and enters a primary pulp tank;
performing first-order coarse screening on the slurry, enabling the obtained fine slurry to enter a second-order slurry tank, enabling the slurry slag to enter a third-order slurry tank, further performing second-order coarse screening, and enabling the obtained fine slurry to enter the second-order slurry tank again; the slurry enters a desander from a secondary slurry tank for desanding, and the obtained good slurry enters a fourth-level slurry tank; the pulp enters a fiber grading sieve from a fourth-stage pulp tank for screening, long fiber pulp enters a fifth-stage pulp tank for standby,
short fiber paper pulp enters a multi-disc thickener for concentration and then further enters a six-stage pulp tank for standby; corresponding slurry in the five-level slurry tank and the six-level slurry tank is conveyed outwards according to the specified proportion and sequentially passes through
Paper is finally formed by sizing, a head box, a forming net, a pressing part, a pre-drying part, a sizing part, a post-drying part, a calendaring part, a winding part and a rewinding part;
the hydraulic pulper comprises a tank body (10), an impeller (11) is arranged in the tank body, a motor (20) is arranged outside the hydraulic pulper and drives the impeller to rotate, and a discharge pipe (12) is connected to the bottom of the tank body and is positioned below the impeller;
a slag discharge pipe (14) which inclines downwards is arranged on the wall of the tank body in a penetrating way, the slag discharge pipe is externally connected with a storage tank (15), and the bottom of the storage tank is connected with two valves (16) in series;
in the first step, one part of pulp and slag in the hydrapulper is discharged outwards, and the other part of pulp and slag enters an impurity separator to obtain good pulp and further enters a slag remover together with primary pulp; one part of pulp and slag in the impurity separator is discharged outwards, the other part of pulp and slag enters a cylindrical sieve for screening to obtain good pulp and enters a hydrapulper again, and the pulp and slag are discharged;
a plurality of turbulence ribs (13) are uniformly distributed around the impeller, each turbulence rib extends to the impeller from the inner wall of the groove body, and the cross section of each turbulence rib is arranged in a right-angled triangle.
2. A corrugated paper making process as claimed in claim 1, wherein in step three, a portion of the pulp residue after the second-stage coarse screening enters the first-stage pulp tank, and another portion of the pulp residue enters the overflow tank and then enters the first-stage pulp tank again.
3. A process for making corrugated paper as claimed in claim 2, wherein stock remaining in the overflow tank is fed to a defibrator, the resultant accepts are fed to a primary chest, and the rejects are fed to a reject extractor.
4. A process for making corrugated paper as claimed in claim 3, wherein accepts from the slag extractor are fed to a primary chest and the rejects are discharged.
5. A corrugated paper making process as claimed in claim 1, wherein in step four, the stock in the fourth stage stock chest further comprises good stock input from the sagged chest and the dry damaged chest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527559.4A CN109577103B (en) | 2018-12-13 | 2018-12-13 | Corrugated paper manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527559.4A CN109577103B (en) | 2018-12-13 | 2018-12-13 | Corrugated paper manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109577103A CN109577103A (en) | 2019-04-05 |
| CN109577103B true CN109577103B (en) | 2021-11-23 |
Family
ID=65928495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811527559.4A Active CN109577103B (en) | 2018-12-13 | 2018-12-13 | Corrugated paper manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109577103B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108353B (en) * | 2021-12-10 | 2024-03-01 | 安德里茨（中国）有限公司 | Screening system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780570A (en) * | 2014-12-15 | 2016-07-20 | 福建利树集团有限公司 | Wastepaper pulping and papermaking method |
| CN206800052U (en) * | 2017-06-19 | 2017-12-26 | 北塘区军之印纸品加工厂 | A kind of paper product hydrabrusher of energy-conserving and environment-protective |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10000181A1 (en) * | 2000-01-05 | 2001-07-12 | Voith Paper Patent Gmbh | Process for dissolving waste paper |
| CN102041750B (en) * | 2010-12-31 | 2012-02-01 | 东莞理文造纸厂有限公司 | Manufacture process of all waste paper dried noodle cardboard paper |
| CN106812008A (en) * | 2015-11-30 | 2017-06-09 | 周子童 | Process for reproducing paperboard from recovered wastepaper |
| CN108130789B (en) * | 2017-12-30 | 2023-09-26 | 重庆理文造纸有限公司 | Production process for preventing cardboard paper from bursting |
| CN207973941U (en) * | 2017-12-30 | 2018-10-16 | 重庆理文造纸有限公司 | A kind of production system preventing the quick-fried line of boxboard |
-
2018
- 2018-12-13 CN CN201811527559.4A patent/CN109577103B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780570A (en) * | 2014-12-15 | 2016-07-20 | 福建利树集团有限公司 | Wastepaper pulping and papermaking method |
| CN206800052U (en) * | 2017-06-19 | 2017-12-26 | 北塘区军之印纸品加工厂 | A kind of paper product hydrabrusher of energy-conserving and environment-protective |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109577103A (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102191727B (en) | Preparation process of environmental protection liner paper | |
| CN206625080U (en) | A kind of paper production line pulping system | |
| CN104711880A (en) | Chemi-mechanical pulp manufacturing technology | |
| CN110093807B (en) | Flexible waste paper pulping process for producing cardboard paper by using full waste paper | |
| US5112444A (en) | Method for treating pulp | |
| CN102352572A (en) | Preparation method for bamboo wood dissolving pulp | |
| CN109577103B (en) | Corrugated paper manufacturing process | |
| CN100585070C (en) | Method of preparing bleaching paste using bioenzyme | |
| CN204023297U (en) | Cop tube paper production system | |
| CN108660832A (en) | A kind of paper production line pulping system | |
| CN1023502C (en) | Process and apparatus for mannfacture of pulp for paper, board, fiberboard and similar products | |
| CN218322083U (en) | Circulating waste paper pulper with multistage disintegration | |
| CN103541277A (en) | Joint paper and production method thereof | |
| CN206625079U (en) | A kind of paper grade (stock) scalping cleaning system | |
| CN115162052B (en) | High-flatness gray paperboard and preparation method thereof | |
| CN216947631U (en) | Pulping, pulp distribution and flow conveying system for corrugated paper | |
| CN205112097U (en) | Vertical high enriched aquapulper | |
| CN211645768U (en) | Broke processing system for producing boxboard | |
| CN110331610B (en) | Papermaking pulping system | |
| CN210134281U (en) | High-concentration slag removal system | |
| CN207091817U (en) | A kind of process units of coated duplex board with grey back and Cultural Paper | |
| CN112726268A (en) | Pulping process of coated grey-bottom white board | |
| CN112981998A (en) | Wood chip pretreatment method for grey board production and pulping method | |
| CN106835820B (en) | A kind of manufacturing equipment of novel papermaking filler and the preparation method of papermaking filler | |
| CN218812884U (en) | Surface layer drifting system for grey-coated white board paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210105 Address after: 333 Zhennan East Road, Pinghu Economic Development Zone, Jiaxing City, Zhejiang Province, 314200 Applicant after: Jiaxing Rongsheng packaging material Co.,Ltd. Address before: No. 588, Zhennan East Road, Pinghu Economic Development Zone, Pinghu City, Jiaxing City, Zhejiang Province 314000 Applicant before: ZHEJIANG RONGSHENG PAPER INDUSTRY HOLDING Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |