CN110699994A - Corrugated raw paper production process without waste liquid discharge - Google Patents
Corrugated raw paper production process without waste liquid discharge Download PDFInfo
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- CN110699994A CN110699994A CN201911001472.8A CN201911001472A CN110699994A CN 110699994 A CN110699994 A CN 110699994A CN 201911001472 A CN201911001472 A CN 201911001472A CN 110699994 A CN110699994 A CN 110699994A
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- 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
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- 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
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- 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
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention discloses a corrugated raw paper production process without waste liquid discharge, which meets the requirements of the production process by production raw materials, a hydrapulper, a waste liquid treatment system, a high-concentration desander, a transition pulp tank, a fiber separator, an upflow pressure screen, a paper machine, a rewinder and the like. The invention has the beneficial effects that: the method firstly obviously improves the production flow of the corrugated base paper, effectively ensures the purity of paper pulp and ensures the production quality of the corrugated base paper by removing impurities for three times, realizes a waste-liquid-free discharge process by combining physicochemical treatment and biochemical treatment, can make the advantages of the treatment process complementary, ensures that the treated sewage can meet the requirements of workshop recycling, simultaneously improves the aerobic treatment efficiency by adopting a contact oxidation method, can reduce the volume of a structure by adopting a specific activity sludge method, saves the investment, has simple process management flow, is convenient to manage and control, can quickly hang a film in a contact oxidation tank, and has obvious environmental benefit.
Description
Technical Field
The invention relates to the technical field of corrugated medium production, in particular to a corrugated medium production process without waste liquid discharge.
Background
The corrugated base paper is one of important constituent materials for producing corrugated boards, and the corrugated base paper requires good fiber bonding strength, flat paper surface, better tightness and stiffness and certain elasticity so as to ensure that the manufactured carton has shockproof and pressure-resistant capabilities;
in addition, the moisture index is controlled, the moisture is too small, the paper is crisp, and the corrugated paper can be cracked during the corrugating process; the paper is soft due to excessive moisture, which brings difficulty to processing and forming, the water content of the general paper should be controlled to be about 10%, and the domestic corrugated base paper is classified into A, B, C, D grades.
The paper is processed by a corrugating machine, the core paper is corrugated by a corrugating roller heated to 160-180 ℃ to form corrugated paper, the corrugated paper is provided with roll paper and flat paper, the fixed quantity is 112-200 g/m2, the fiber tissue is uniform, the paper web is uniform in thickness, yellow and bright in color and luster, has certain bulk, higher stiffness, ring crush strength and water absorption, and excellent laminating adaptability, and the paper is manufactured by feeding natural broadleaf wood semi-chemical pulp, cold alkali pulp or natural alkali process straw pulp or waste paper pulp into a cylinder multi-cylinder paper machine after free pulping, and is mainly used as a corrugated core layer (middle layer) of the corrugated board, plays an important role in the shockproof performance of the corrugated board, and can also be used as packaging paper of fragile articles;
therefore, based on the above research, the existing corrugated medium production process has many disadvantages, and more waste liquid is generated in the existing corrugated medium production, and most of the waste liquid is simply treated or discharged to the outside without being treated, so that the normal progress of production is ensured, but the pollution of the operating environment and the surrounding ecological environment is obviously increased, the production mode is difficult to reach the good environmental protection requirement, and the existing call of environmental protection production is not met, so that the production process needs to be improved, and the production requirement is met.
Disclosure of Invention
The invention aims to provide a corrugated medium production process without waste liquid discharge so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a corrugated raw paper production process without waste liquid discharge, which needs to pass through a production raw material, a hydrapulper, a waste liquid treatment system, a high-concentration desander, a transition pulp tank, a fiber separator, an upflow pressure screen, a paper machine, a rewinder and the like, achieves the requirements of the production process and comprises the following five steps:
the method comprises the following steps: the production raw materials are put into a hydrapulper, the hydrapulper is used for breaking the production raw materials and primarily removing impurities, and waste liquid after breaking by the hydrapulper is discharged into a waste liquid treatment system for treatment;
step two: slurry after being pulped by the hydrapulper is led into a high-concentration desander, heavy impurities such as gravel in the slurry are removed, good pulp is generated, and waste liquid generated in the period is discharged into a waste liquid treatment system for treatment;
step three: the high-concentration desander guides the generated good pulp into a fiber separator, and the fiber separator is used for defibering the good pulp and further removing light impurities;
step four: the good pulp separated by the fiber separator is guided into a transition pulp tank to store the pulp, the good pulp in the transition pulp tank is guided into an upflow pressure screen, the upflow pressure screen finely selects the pulp and further removes impurities to generate wet paper industry, and during the period, part of the pulp flows back to the transition pulp tank;
step five: the paper machine rapidly dries the wet paper through a drying cylinder heated by steam, and the dried paper is trimmed and rewound into a finished product according to the required specification through a rewinder.
Further, the hydropulper and defibrator tend to discharge certain plastic impurities during operation due to principle disorder, and the plastic impurities can be sold and disposed by stockpiling.
Further, the defibrator relates to and has cell body, impeller, sieve, transmission, sediment pipe and base to constitute, and the base is main part support piece, installs the whole toper that is of cell body on the base, and the little awl end of cell body is equipped with into thick liquid mouth, and the center of big awl end is equipped with light impurity discharge port, and the bottom of big awl end is provided with heavy debris discharge port, and the bottom setting is favorable to collecting the baffle that heavy debris was used in the big awl end.
Further, the gravel removed by the high-consistency desander is decomposed in the soil by landfill treatment, and the desanding diameter of the high-consistency desander is: greater than 0.3mm, effluent turbidity: < 15 degrees, head loss: less than 0.04 MPa.
Further, it constitutes to rise flow pressure sieve relates to there being screen cylinder, rotor, shell and transmission to constitute, the screen cylinder is the fine screen sieve seam of width H0.15mm, the rotor is the fine pulp rotor of 3-4 rotors to the strict correction balance after the equipment, the shell comprises upper cover and barrel, and the barrel lower part is equipped with the tangential and advances the thick liquid pipe, and the barrel middle part is equipped with out the thick liquid pipe, and the upper cover is equipped with row cinder notch and washes the mouth of a river, transmission includes motor, belt pulley, v type area, belt overspeed device tensioner, main shaft and bearing.
Further, the rewinding process of the rewinding machine mainly completes three basic steps: firstly, raw paper burrs are cut off; secondly, the whole pair of base paper is cut into a plurality of widths with the specification of a composite user; and thirdly, controlling the winding diameter of the finished paper roll to make the finished paper roll meet the factory specification conditions.
Compared with the prior art, the invention has the beneficial effects that: the method firstly obviously improves the production flow of the corrugated base paper, effectively ensures the purity of paper pulp and ensures the production quality of the corrugated base paper by removing impurities for three times, realizes a waste-liquid-free discharge process by combining physicochemical treatment and biochemical treatment, can make the advantages of the treatment process complementary, ensures that the sewage can meet the requirements of workshop recycling after being treated, simultaneously improves the aerobic treatment efficiency by adopting a contact oxidation method, can reduce the volume of a structure by adopting a specific activity sludge method, saves the investment, has simple process management flow, convenient management and control, quick film hanging of a contact oxidation tank, short operation starting time and obvious environmental benefit, can recover valuable substances and has good economic benefit.
Drawings
FIG. 1 is a schematic view of the production process of corrugated medium of the present invention;
FIG. 2 is a schematic flow diagram of a waste liquid treatment system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, an embodiment of the present invention: a corrugated raw paper production process without waste liquid discharge, which needs to pass through a production raw material, a hydrapulper, a waste liquid treatment system, a high-concentration desander, a transition pulp tank, a fiber separator, an upflow pressure screen, a paper machine, a rewinder and the like, achieves the requirements of the production process and comprises the following five steps:
the method comprises the following steps: the production raw materials are put into a hydrapulper, the hydrapulper is used for breaking the production raw materials and primarily removing impurities, and the waste liquid after breaking by the hydrapulper is discharged into a waste liquid treatment system for treatment;
step two: the slurry after being pulped by the hydrapulper is led into a high-concentration desander, heavy impurities such as gravel and the like in the slurry are removed, good pulp is generated, waste liquid generated in the period is discharged into a waste liquid treatment system for treatment, the hydrapulper mainly has the operation performance of pulping plates, waste books, waste cartons and the like, and can be a vertical hydrapulper in structural form;
step three: the high-concentration desander guides the generated good pulp into the fiber separator, the fiber separator conducts defibering on the good pulp and further removes light impurities, the fiber separator removes the light impurities and the heavy impurities in the waste paper raw materials by utilizing the specific gravity difference between the waste paper pulp and the impurities, and the fiber separator also has the functions of defibering and screening;
step four: the good pulp separated by the fiber separator is guided into a transition pulp tank to store the pulp, the good pulp in the transition pulp tank is guided into an upflow pressure screen, the upflow pressure screen finely selects the pulp and further removes impurities to generate wet paper industry, and during the period, part of the pulp flows back to the transition pulp tank;
step five: the paper machine rapidly dries the wet paper through a drying cylinder heated by steam, the dried paper is cut and rewound into a finished product through a rewinder according to the required specification, and a worker sells the finished corrugated base paper in a packaging mode.
Furthermore, certain plastic impurities are easily discharged due to disorder of the principle generated during the operation of the hydrapulper and the defibrator, the plastic impurities can be sold out by accumulation, the selling treatment of the plastic impurities realizes the effect of waste utilization, the waste of resources is reduced, the economic benefit is improved, and the high-quality production process is ensured.
The fiber separator comprises a groove body, an impeller, a sieve plate, a transmission device, a slag settling pipe and a base, wherein the base is a main body supporting piece, the groove body arranged on the base is integrally conical, a small conical end of the groove body is provided with a slurry inlet, the center of a large conical end is provided with a light impurity discharge port, the bottom of the large conical end is provided with a heavy impurity discharge port, the inner bottom of the large conical end is provided with a baffle plate beneficial to collecting heavy impurities, the center of the groove body is provided with the transmission device, the impeller is arranged on a main shaft of the transmission device, the main shaft drives the impeller to rotate at high speed, a bed knife is embedded on the sieve plate to prevent fibers from winding the impeller, the outer lower part of the groove body is provided with the slag settling pipe, the slag settling pipe is provided with two pneumatic slag discharge valves, and the periodic discharge of the heavy impurities is controlled by an electric control box.
Further, gravel removed by the high-concentration desander is decomposed in soil by landfill treatment, and the desanding diameter of the high-concentration desander is as follows: greater than 0.3mm, effluent turbidity: < 15 degrees, head loss: less than 0.04Mpa, the cyclone on the desander is made of high-chromium cast iron, and the high-chromium cast iron is composed of a stainless steel feed inlet, a discharge outlet (overflow pipe), a conical ceramic cyclone, a conical stainless steel tank (the tank is provided with two observation mirrors), an automatic control or manual sand discharge valve (generally provided with two sand discharge valves), a back flushing valve and the like.
Further, rising current pressure sieve relates to the screen cylinder, the rotor, shell and transmission constitute, the screen cylinder is width H0.15mm's fine screen sieve seam, the rotor is the fine pulp rotor of 3-4 rotors, and the strict correction balance after the equipment, the shell comprises upper cover and barrel, the barrel lower part is equipped with the tangential and advances the thick liquid pipe, the barrel middle part is equipped with out the thick liquid pipe, the upper cover is equipped with row cinder notch and washes the mouth of a river, transmission includes the motor, the belt pulley, the v type area, belt overspeed device tensioner, main shaft and bearing, and need notice: in the application process of the pressure screen, due to the fact that scaling phenomena are generated by process water, calcium and magnesium hardness, a PH value, conductivity, total alkalinity, temperature and other factors, workers often perform maintenance operation on the pressure screen.
Further, the rewinding process of the rewinding machine mainly completes three basic steps: firstly, raw paper burrs are cut off; secondly, the whole pair of base paper is cut into a plurality of widths with the specification of a composite user; and thirdly, controlling the roll diameter of the finished paper roll to meet the factory specification conditions, cutting raw paper burrs to ensure the regularity of the edge of the raw paper so as to sell the raw paper in the later period, achieve the effect of batch production and ensure the production efficiency of the raw paper.
Example 2
Please refer to fig. 2 for a system for treating waste liquid
The method comprises the following steps that firstly, a water conservancy pulper and waste liquid generated in production are discharged into an adjusting tank, the adjusting tank plays a role in collection and storage, the waste liquid in the whole production process is collected, in the treatment operation, the adjusting tank is pumped into a sedimentation tank, and a coagulant and a flocculant are added into the tank, so that suspended particles and colloidal particles in the waste water are destabilized and are mutually aggregated into thick particles to be precipitated, and therefore, water separation is realized, and the load of a subsequent sewage treatment facility is reduced;
1.1, the adjusting tank is of an underground steel concrete structure and is built together with a sludge tank, the overall dimension is 13.5x12x5.5 m, the effective volume is 845m, and the HRT is 4.5h, the production wastewater can be used for adjusting the water quality and the water quantity, so that the impact of frequent change of the water quality on subsequent biochemical treatment facilities is avoided, the normal operation of the biochemical treatment facilities is influenced, in order to save the construction land, the upper part area of the adjusting tank can be covered by a cover plate and is used as a sludge dewatering room, and supporting equipment comprises a centrifugal pump, namely a 100WD-215-12.5 type, 2 sets, one set is used and one set is prepared; flow rate 214m3H, lift 12.8m, power 14 Kw.
1.2, the primary sedimentation tank is an underground steel concrete structure and is combined with the contact oxidation tank, the overall dimension is 17x8x5.0 m, and the effective volume is 675m3,HRT＝3.5h，q＝1.5m2/m2H, adding medicament into the pool to destabilize and mutually aggregate fine particles and colloidal particles which are difficult to precipitate in the wastewater into coarse particles for precipitation, thereby realizing the separation from the water and reducing the load of subsequent sewage treatment facilities, adopting a suction dredge to discharge mud, and adopting a matched device which is an XJ-8 type suction dredge with the power of 7.5Kw
Secondly, the effluent automatically flows into a contact oxidation pond, and dissolved oxygen of a water body is increased by blast aeration, so that aerobic microorganisms are propagated in a large quantity, on one hand, pollutants in the wastewater are decomposed by the aerobic microorganisms, and on the other hand, peculiar smell generated by the anaerobic wastewater can be removed;
2.1, the contact oxidation tank is an underground steel concrete structure, is built together with a sedimentation tank, and has the following overall dimensions: 20 x12x5.0M, effective volume 1150M3HRT (Rockwell temperature) is 6h, aerobic microorganisms are propagated in a large amount in the contact oxidation pond through aeration of a blower, the metabolism of the aerobic microorganisms is utilized to treat soluble organic matters in water, and meanwhile, the elimination of the organic matters in the water and the increase of dissolved oxygen can remove peculiar smell in the wastewater, thereby laying a good foundation for production and recycling; the corollary equipment: a blower: SSR-150 type, 2 two, one for one; flow rate: 27.74m3Min, boosting pressure to 49 KPA; the rotating speed is 1520 r/min; power: 30Kw
Thirdly, the wastewater automatically flows into an air floating device (the air floating device introduces air into water in the form of micro bubbles to ensure that the micro bubbles are adhered to suspended particles in the water to form a water-gas-particle three-phase mixed system, after the particles are adhered with the bubbles, the particles float upwards with density smaller than that of the water to form a scum layer and are separated out of the water), a coagulant is added if necessary to ensure that paper pulp fibers and the fallen biological membrane form a canvas to float upwards, the scum is scraped out by a foam scraping machine, and finally the treated waste liquid enters a clear water tank to be recycled;
3.1, the air floatation tank is of an underground steel concrete structure and is built with the contact oxidation tank, and the size specification is 15 x5x5.0m; effective volume 330 m'; q is 2.5m3/m2H, HRT ═ 1.73h, equipment kit: the air dissolving pump IS of an IS100-65-200 type, the flow rate IS 52.3m2/h, the lift IS 41m, and the power IS 15 Kw; one foam scraping machine;
3.2, an underground steel concrete structure of the clean water pool is built with the air flotation pool, the external dimension is 21x7x6.0 m, the effective volume is 500m, the HRT is 2.6h, in order to save the land for engineering construction, the upper part of the clean water pool is completely covered by a cover plate, only a plurality of inspection holes are left, and an on-duty room, a power distribution room, an equipment room and a medicament room are built on the upper part of the clean water pool.
And fourthly, the sludge in the first sedimentation tank and the scum in the air floatation device enter a storage tank, then the sludge is pumped into a concentration tank by a pump to be concentrated and then enters a sludge dewatering machine, the dewatered sludge can be used as a filler or transported outside for harmless treatment due to the paper pulp, and the filtrate flows back to the regulating tank.
4.1, a concentration tank underground type steel concrete structure is built with an adjusting tank, the overall dimension is 6.0x5.0 m, the effective volume is 180m, sludge in a storage tank is concentrated in the tank after being added with drugs, supernatant is discharged into the adjusting tank, sludge at the bottom of the tank is pumped into a sludge dewatering machine by a sludge pump for dewatering treatment, and the matched equipment comprises a centrifugal pump, namely 80 WG-40, 10.8 and 2 sets of devices, wherein one set of devices is used for one set; the flow rate is 40 m/h; the lift is 10.8 m; the power is 3 Kw;
4.2, adopting an LW-500x2000 type horizontal spiral centrifugal machine for the sludge dewatering machine, enabling the filtrate to enter a regulating tank, and transporting the mud cakes outwards to be used as paper making filler or harmless treatment.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The corrugated base paper production process without waste liquid discharge is characterized in that the production process needs to be realized through production raw materials, a hydrapulper, a waste liquid treatment system, a high-concentration desander, a transition pulp tank, a fiber separator, an upflow pressure screen, a paper machine, a rewinder and the like, and the production process needs to be realized, and the production process is characterized in that: the method comprises the following five steps:
the method comprises the following steps: the production raw materials are put into a hydrapulper, the hydrapulper is used for breaking the production raw materials and primarily removing impurities, and waste liquid after breaking by the hydrapulper is discharged into a waste liquid treatment system for treatment;
step two: slurry after being pulped by the hydrapulper is led into a high-concentration desander, heavy impurities such as gravel in the slurry are removed, good pulp is generated, and waste liquid generated in the period is discharged into a waste liquid treatment system for treatment;
step three: the high-concentration desander guides the generated good pulp into a fiber separator, and the fiber separator is used for defibering the good pulp and further removing light impurities;
step four: the good pulp separated by the fiber separator is guided into a transition pulp tank to store the pulp, the good pulp in the transition pulp tank is guided into an upflow pressure screen, the upflow pressure screen finely selects the pulp and further removes impurities to generate wet paper industry, and during the period, part of the pulp flows back to the transition pulp tank;
step five: the paper machine rapidly dries the wet paper through a drying cylinder heated by steam, and the dried paper is trimmed and rewound into a finished product according to the required specification through a rewinder.
2. The process for producing a corrugated medium without waste liquid discharge according to claim 1, wherein: the hydropulper and the defibrator are easy to discharge certain plastic impurities due to disorder of the principle during the operation, and the plastic impurities can be sold and disposed by stockpiling.
3. The process for producing a corrugated medium without waste liquid discharge according to claim 1, wherein: the fiber separator comprises a groove body, an impeller, a sieve plate, a transmission device, a slag settling pipe and a base, wherein the base is a main body supporting piece, the groove body arranged on the base is integrally conical, a small conical end of the groove body is provided with a slurry inlet, the center of a large conical end is provided with a light impurity discharge port, the bottom of the large conical end is provided with a heavy impurity discharge port, and the bottom in the large conical end is provided with a baffle plate which is favorable for collecting heavy impurities.
4. The process for producing a corrugated medium without waste liquid discharge according to claim 1, wherein: the gravel removed by the high-consistency desander is decomposed in the soil by landfill treatment, and the desanding diameter of the high-consistency desander is as follows: greater than 0.3mm, effluent turbidity: < 15 degrees, head loss: less than 0.04 MPa.
5. The process for producing a corrugated medium without waste liquid discharge according to claim 1, wherein: the upflow pressure screen relates to and has screen cylinder, rotor, shell and transmission to constitute, the screen cylinder is the fine screen sieve seam of width H0.15mm, the rotor is the fine pulp rotor of 3-4 rotors to the strict correction balance after the equipment, the shell comprises upper cover and barrel, and the barrel lower part is equipped with the tangential and advances thick liquid pipe, and the barrel middle part is equipped with out the thick liquid pipe, and the upper cover is equipped with row cinder notch and washes the mouth of a river, transmission includes motor, belt pulley, v area, belt overspeed device tensioner, main shaft and bearing.
6. The process for producing a corrugated medium without waste liquid discharge according to claim 1, wherein: the rewinding process of the rewinding machine mainly completes three basic steps: firstly, raw paper burrs are cut off; secondly, the whole pair of base paper is cut into a plurality of widths with the specification of a composite user; and thirdly, controlling the winding diameter of the finished paper roll to make the finished paper roll meet the factory specification conditions.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663372A (en) * | 2020-12-25 | 2021-04-16 | 东莞顺裕纸业有限公司 | Production method for reconstructing corrugated medium paper by using waste paper and capable of reducing pulping energy consumption |
| CN113619203A (en) * | 2021-08-09 | 2021-11-09 | 浙江领帆包装有限公司 | Production process of high-strength 3A corrugated board |
| CN116088451A (en) * | 2023-02-15 | 2023-05-09 | 陕西西微测控工程有限公司 | Method for realizing paperboard variety switching by adopting module cluster mode |
| CN116446207A (en) * | 2023-05-11 | 2023-07-18 | 山东丰源中科造纸有限公司 | Production device for odorless corrugated paper |
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