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CN112482080A - Resource utilization method of bamboo residues - Google Patents

Resource utilization method of bamboo residues Download PDF

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Publication number
CN112482080A
CN112482080A CN202011352414.2A CN202011352414A CN112482080A CN 112482080 A CN112482080 A CN 112482080A CN 202011352414 A CN202011352414 A CN 202011352414A CN 112482080 A CN112482080 A CN 112482080A
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China
Prior art keywords
pulp
paper
bamboo slag
bamboo
resource utilization
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Pending
Application number
CN202011352414.2A
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Chinese (zh)
Inventor
韩卿
刘强
薛白亮
李新平
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Shaanxi University of Science and Technology
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Shaanxi University of Science and Technology
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Priority to CN202011352414.2A priority Critical patent/CN112482080A/en
Publication of CN112482080A publication Critical patent/CN112482080A/en
Pending legal-status Critical Current

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    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • 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
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents

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  • Paper (AREA)

Abstract

The invention discloses a resource utilization method of bamboo slag, which specifically comprises the following steps of 1: adjusting the water content of the bamboo slag to 6% -12%, and then crushing and grinding to obtain 100-300 mesh bamboo slag fine materials; step 2: the beating degree is 18-30OSR paper pulp, adding bamboo slag fine material accounting for 5-25% of the paper pulp by mass to prepare a mixture, adjusting the pulp concentration of the mixture to 0.1-0.5%,after uniformly stirring, adding retention aid cationic starch accounting for 0.5 percent of the mass of the paper pulp and reinforcing agent polyacrylamide accounting for 1 percent of the mass of the paper pulp, and uniformly stirring to obtain papermaking pulp; and step 3: the papermaking pulp obtained in the step 2 is processed according to the proportion of 100g/m2Making the wet paper sheet into a wet paper sheet, and then making the wet paper sheet into a dry paper sheet after paper uncovering, squeezing and drying; the bamboo slag is crushed and pretreated and then is used as the filler to be applied to papermaking production, so that the problem of bamboo slag leaving is solved, and the cost of papermaking raw materials is reduced and the quality of finished paper is improved.

Description

Resource utilization method of bamboo residues
Technical Field
The invention relates to a bamboo residue recycling technology, in particular to a resource utilization method of bamboo residue.
Background
Paper making is an important invention for ancient Chinese workers. The method is divided into a mechanism mode and a manual mode. There are mechanisms which are carried out continuously on a paper machine, in which pulp suitable for the quality of the paper is diluted to a certain concentration with water, initially dewatered in the wire section of the paper machine to form a wet sheet, dewatered by pressing and then dried to form paper. Manually, the fiber dispersed and suspended in water is made into wet paper sheets by adopting a frame of a bamboo curtain, a polyester net or a copper net, and the wet paper sheets are pressed, dehydrated and dried in the sun or dried to form paper.
The paper industry takes raw plant fibers such as wood, bamboo, reed and the like or regenerated fibers such as waste paper and the like as raw materials, wherein the bamboo can generate solid wastes such as material preparation ash, pulp slag, bamboo slag and the like in the paper making process, the bamboo slag accounts for 3% -5% of the using amount of the bamboo, the using amount of the bamboo is increased along with the large using amount of paper, and the yield of the bamboo slag is increased.
However, the environment pollution is caused by burning or burying the bamboo slag, and the problems of low additional value and small material consumption exist when the bamboo slag is used for manufacturing the bacteria growing rod or used as a plate filling material.
Disclosure of Invention
The invention aims to provide a bamboo residue resource utilization method which not only solves the problem of bamboo residue out of the way, but also is beneficial to reducing the cost of paper making raw materials and improving the quality of finished paper.
In order to achieve the purpose, the invention adopts the technical scheme that:
a resource utilization method of bamboo slag is characterized in that: the method specifically comprises the following steps:
step 1: after the water content of the bamboo slag is adjusted to 6% -12%, the bamboo slag is crushed and ground to obtain 100-300 meshes of bamboo slag fine materials;
step 2: the beating degree is 18-30OSR pulp and adding into itPreparing a mixture from bamboo residue fine materials accounting for 5-25% of the mass of the paper pulp, adjusting the pulp concentration of the mixture to be 0.1-0.5%, uniformly stirring, adding retention aid cationic starch accounting for 0.5% of the mass of the paper pulp and reinforcing agent polypropylene millamine accounting for 1% of the mass of the paper pulp, and uniformly stirring to obtain papermaking pulp;
and step 3: the papermaking pulp obtained in the step 2 is processed according to the proportion of 100g/m2Making into wet paper sheets, then removing the paper, squeezing the wet paper sheets after paper removal for 3min under 0.5MPa, and drying at 102-108 ℃ to obtain dry paper sheets.
Further, the bamboo slag is produced in the production process of paper pulp for papermaking.
Further, the paper pulp in the step 2 is prepared from waste corrugated paper boxes, and the paper pulp is beaten by a PFI pulping machine.
Further, the stirring time of the mixture in the step 2 is 5 min.
Further, the stirring time of the cationic starch and the polyacrylamide in the step 2 is 1 min.
Further, the drying time in the step 3 is 5 min.
Further, the bamboo residues in the step 1 are crushed by a multifunctional crusher at the rotating speed of 3000-39000 r/min.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the water content of the bamboo slag is adjusted to 6% -12%, and then the bamboo slag is smashed and ground for pretreatment and then used as a filler for papermaking production, so that the consumption of papermaking raw materials is reduced, and the cost of the papermaking raw materials is reduced; when the fine bamboo residue is used as a filler for papermaking, the ring crush index of the paper is increased by more than 10%, the increase is increased along with the increase of the mesh number of the bamboo residue and the addition amount of the bamboo residue, and the increase of the mesh number of the bamboo residue also has a positive effect on the tensile index of the finished paper, so that the physical strength performance of the paper is improved; meanwhile, the problem of bamboo slag out of the way is solved;
furthermore, the bamboo residue crushing device generates high-intensity impact force, compression force, cutting force and friction force on the crushed bamboo residues through high-speed airflow generated by the crushing rotor of the high-speed crusher during high-speed rotation, so that the effect of crushing the bamboo residues is realized.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention thereto.
Example 1:
the invention provides a resource utilization method of bamboo slag, which specifically comprises the following steps:
step 1: the bamboo residue produced in the production process of papermaking pulping is adjusted according to the water content of 6% -12%, and then is crushed and ground by a multifunctional crusher with the rotating speed of 3000-39000 r/min to obtain 100-mesh bamboo residue fine materials.
Making paper pulp, wherein the paper pulp is prepared from waste corrugated paper boxes, the waste corrugated paper boxes are fully disintegrated in a beating machine, the paper pulp after disintegration is beaten by a PFI (pulp refining) machine, and the beating degree of the finished pulp is controlled to be 18-30OSR。
Step 2: and (2) taking the paper pulp obtained in the step (1), adding bamboo residue fine material accounting for 5% of the mass of the paper pulp into the paper pulp to prepare paper pulp, adding water to dilute the paper pulp to obtain paper pulp with the pulp concentration of 0.1% -0.5%, stirring the paper pulp in a pulp fluffer for 5min, adding retention aid cationic starch accounting for 0.5% of the mass of the paper pulp and reinforcing agent polyacrylamide accounting for 1% of the mass of the paper pulp, and stirring the paper pulp for 1min to obtain papermaking pulp.
And step 3: the papermaking pulp obtained in the step 2 is processed according to the proportion of 100g/m2The amount of the paper is copied into wet paper in a standard paper former, then the paper is uncovered, the wet paper after the paper is uncovered is squeezed for 3min under 0.5MPa, and then the wet paper is dried for 5min at 102-108 ℃ to obtain dry paper.
And 4, step 4: and (3) testing and analyzing the expansion resistance index and the ring crush pressure index of the dry paper pages obtained in the step (3) according to the regulations and requirements in GB T13023-2008 corrugated medium paper.
Example 2:
the invention provides a resource utilization method of bamboo slag, which specifically comprises the following steps:
step 1: the bamboo residue produced in the production process of papermaking pulping is adjusted according to the water content of 6% -12%, and then is crushed and ground by a multifunctional crusher with the rotating speed of 3000-39000 r/min to obtain 150-mesh bamboo residue fine materials.
Making paper pulp, wherein the paper pulp is prepared from waste corrugated paper boxes, the waste corrugated paper boxes are fully disintegrated in a beating machine, the paper pulp after disintegration is beaten by a PFI (pulp refining) machine, and the beating degree of the finished pulp is controlled to be 18-30OSR。
Step 2: and (2) taking the paper pulp obtained in the step (1), adding bamboo residue fine material accounting for 10% of the mass of the paper pulp into the paper pulp to prepare paper pulp, adding water to dilute the paper pulp to obtain paper pulp with the pulp concentration of 0.1% -0.5%, stirring the paper pulp in a pulp fluffer for 5min, adding retention aid cationic starch accounting for 0.5% of the mass of the paper pulp and reinforcing agent polyacrylamide accounting for 1% of the mass of the paper pulp, and stirring the paper pulp for 1min to obtain papermaking pulp.
And step 3: the papermaking pulp obtained in the step 2 is processed according to the proportion of 100g/m2The amount of the paper is copied into wet paper in a standard paper former, then the paper is uncovered, the wet paper after the paper is uncovered is squeezed for 3min under 0.5MPa, and then the wet paper is dried for 5min at 102-108 ℃ to obtain dry paper.
And 4, step 4: and (3) testing and analyzing the expansion resistance index and the ring crush pressure index of the dry paper pages obtained in the step (3) according to the regulations and requirements in GB T13023-2008 corrugated medium paper.
Example 3:
the invention provides a resource utilization method of bamboo slag, which specifically comprises the following steps:
step 1: bamboo residue generated in the production process of papermaking pulping is adjusted according to the water content of 6% -12%, and then is crushed and ground by a multifunctional crusher with the rotating speed of 3000-39000 r/min to obtain 200-mesh bamboo residue fine materials.
Making paper pulp, wherein the paper pulp is prepared from waste corrugated paper boxes, the waste corrugated paper boxes are fully disintegrated in a beating machine, the paper pulp after disintegration is beaten by a PFI (pulp refining) machine, and the beating degree of the finished pulp is controlled to be 18-30OSR。
Step 2: and (2) taking the paper pulp obtained in the step (1), adding bamboo residue fine material accounting for 15% of the mass of the paper pulp into the paper pulp to prepare paper pulp, adding water to dilute the paper pulp to obtain paper pulp with the pulp concentration of 0.1% -0.5%, stirring the paper pulp in a pulp fluffer for 5min, adding retention aid cationic starch accounting for 0.5% of the mass of the paper pulp and reinforcing agent polyacrylamide accounting for 1% of the mass of the paper pulp, and stirring the paper pulp for 1min to obtain papermaking pulp.
And step 3: the papermaking pulp obtained in the step 2 is processed according to the proportion of 100g/m2The amount of the paper is copied into wet paper in a standard paper former, then the paper is uncovered, the wet paper after the paper is uncovered is squeezed for 3min under 0.5MPa, and then the wet paper is dried for 5min at 102-108 ℃ to obtain dry paper.
And 4, step 4: and (3) testing and analyzing the expansion resistance index and the ring crush pressure index of the dry paper pages obtained in the step (3) according to the regulations and requirements in GB T13023-2008 corrugated medium paper.
Example 4:
the invention provides a resource utilization method of bamboo slag, which specifically comprises the following steps:
step 1: the bamboo residue produced in the production process of papermaking pulping is adjusted according to the water content of 6% -12%, and then is crushed and ground by a multifunctional crusher with the rotating speed of 3000-39000 r/min to obtain the bamboo residue fine material with the size of 250 meshes.
Making paper pulp, wherein the paper pulp is prepared from waste corrugated paper boxes, the waste corrugated paper boxes are fully disintegrated in a beating machine, the paper pulp after disintegration is beaten by a PFI (pulp refining) machine, and the beating degree of the finished pulp is controlled to be 18-30OSR。
Step 2: and (2) taking the paper pulp obtained in the step (1), adding bamboo residue fine material accounting for 20% of the mass of the paper pulp into the paper pulp to prepare paper pulp, adding water to dilute the paper pulp to obtain paper pulp with the pulp concentration of 0.1% -0.5%, stirring the paper pulp in a pulp fluffer for 5min, adding retention aid cationic starch accounting for 0.5% of the mass of the paper pulp and reinforcing agent polyacrylamide accounting for 1% of the mass of the paper pulp, and stirring the paper pulp for 1min to obtain papermaking pulp.
And step 3: the papermaking pulp obtained in the step 2 is processed according to the proportion of 100g/m2The amount of the paper is copied into wet paper in a standard paper former, then the paper is uncovered, the wet paper after the paper is uncovered is squeezed for 3min under 0.5MPa, and then the wet paper is dried for 5min at 102-108 ℃ to obtain dry paper.
And 4, step 4: and (3) testing and analyzing the expansion resistance index and the ring crush pressure index of the dry paper pages obtained in the step (3) according to the regulations and requirements in GB T13023-2008 corrugated medium paper.
Example 5:
the invention provides a resource utilization method of bamboo slag, which specifically comprises the following steps:
step 1: the bamboo residue produced in the production process of papermaking pulping is adjusted according to the water content of 6% -12%, and then is crushed and ground by a multifunctional crusher with the rotating speed of 3000-39000 r/min to obtain 300-mesh bamboo residue fine materials.
Making paper pulp, wherein the paper pulp is prepared from waste corrugated paper boxes, the waste corrugated paper boxes are fully disintegrated in a beating machine, the paper pulp after disintegration is beaten by a PFI (pulp refining) machine, and the beating degree of the finished pulp is controlled to be 18-30OSR。
Step 2: and (2) taking the paper pulp obtained in the step (1), adding bamboo residue fine material accounting for 25% of the mass of the paper pulp into the paper pulp, mixing to obtain paper pulp, adding water to dilute the paper pulp to obtain paper pulp with the pulp concentration of 0.1% -0.5%, stirring the paper pulp in a pulp fluffer for 5min, adding retention aid cationic starch accounting for 0.5% of the mass of the paper pulp and reinforcing agent polyacrylamide accounting for 1% of the mass of the paper pulp, and stirring for 1min to obtain papermaking pulp.
And step 3: the papermaking pulp obtained in the step 2 is processed according to the proportion of 100g/m2The amount of the paper is copied into wet paper in a standard paper former, then the paper is uncovered, the wet paper after the paper is uncovered is squeezed for 3min under 0.5MPa, and then the wet paper is dried for 5min at 102-108 ℃ to obtain dry paper.
And 4, step 4: and (3) testing and analyzing the expansion resistance index and the ring crush pressure index of the dry paper pages obtained in the step (3) according to the regulations and requirements in GB T13023-2008 corrugated medium paper.
In summary, in the above examples 1 to 5, when the fine bamboo residue is used as a filler for papermaking, the ring crush index of the paper is increased in different degrees, and the increase is more than 10%, and the increase is increased along with the increase of the number of bamboo residues and the addition amount of the bamboo residues; the tensile index of the finished paper is not influenced remarkably by adding the bamboo residues, but the tensile index of the finished paper is also influenced positively by increasing the mesh number of the bamboo residues. Therefore, the utilization of the bamboo slag as the filler in the paper making process has a positive effect on the ring crush strength of the finished paper, and the ring crush strength is an important quality index for paper types such as corrugated base paper, so that the bamboo slag filler has a good application effect in the manufacture of natural color paper types such as corrugated base paper.
In the embodiments 1 to 5, the bamboo slag generated in the production process of papermaking and pulping is adjusted according to the moisture content of 6% to 12%, and then is subjected to crushing and grinding pretreatment to be used as the filler for papermaking production, so that the consumption of papermaking raw materials is reduced, the cost of the papermaking raw materials is reduced, and the problem of the bamboo slag going out is solved.
The present invention is described in detail with reference to the above embodiments, and those skilled in the art will understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (7)

1.一种竹渣的资源化利用方法，其特征在于：具体包括以下步骤：1. a resource utilization method of bamboo slag, is characterized in that: specifically comprise the following steps: 步骤1：调整竹渣的含水率为6％～12％后经过粉碎、研磨得到100～300目的竹渣细料；Step 1: After adjusting the moisture content of the bamboo slag to 6%～12%, pulverize and grind to obtain 100～300 mesh bamboo slag fines; 步骤2：取打浆度为18～30OSR的纸浆并向其中加入纸浆质量5％～25％的竹渣细料制得混合物，调节混合物的浆浓度为0.1％～0.5％，搅拌均匀后添加纸浆质量0.5％的助留剂阳离子淀粉和纸浆质量1％的增强剂聚丙烯酰胺，搅拌均匀后得到抄纸浆料；Step 2: take pulp with a beating degree of 18-30 O SR and add bamboo slag fines of 5%-25% pulp quality to it to prepare a mixture, adjust the pulp concentration of the mixture to 0.1%-0.5%, stir evenly and add 0.5% pulp mass of cationic starch as retention aid and 1% pulp mass of reinforcing agent polyacrylamide are mixed to obtain papermaking slurry; 步骤3：将步骤2中得到的抄纸浆料按100g/m2的量抄成湿纸页，随后揭纸，揭纸后的湿纸页在0.5MPa下压榨3min，后于102～108℃干燥得到干纸页。Step 3: The papermaking slurry obtained in step 2 is made into wet paper sheets in an amount of 100 g/m 2 , and then peeled off, the wet paper sheets after peeling are pressed at 0.5 MPa for 3 minutes, and then dried at 102-108 ° C Get dry sheets. 2.根据权利要求1所述的一种竹渣的资源化利用方法，其特征在于：所述竹渣为用于造纸纸浆生产过程中产生的竹渣。2. the resource utilization method of a kind of bamboo slag according to claim 1, is characterized in that: described bamboo slag is the bamboo slag that is used for producing in the papermaking pulp production process. 3.根据权利要求1所述的一种竹渣的资源化利用方法，其特征在于：所述步骤2中的纸浆选用废旧瓦楞纸箱制备，纸浆采用PFI磨浆机进行打浆处理。3. The resource utilization method of a kind of bamboo slag according to claim 1, it is characterized in that: the pulp in the described step 2 is prepared from waste corrugated boxes, and the pulp is processed by using a PFI refiner. 4.根据权利要求1-3任一项所述的一种竹渣的资源化利用方法，其特征在于：所述步骤2中混合物的搅拌时间为5min。4. the resource utilization method of a kind of bamboo slag according to any one of claim 1-3, is characterized in that: the stirring time of mixture in described step 2 is 5min. 5.根据权利要求1-3任一项所述的一种竹渣的资源化利用方法，其特征在于：所述步骤2中阳离子淀粉和聚丙烯酰胺的搅拌时间为1min。5. the resource utilization method of a kind of bamboo slag according to any one of claim 1-3, is characterized in that: in described step 2, the stirring time of cationic starch and polyacrylamide is 1min. 6.根据权利要求1-3任一项所述的一种竹渣的资源化利用方法，其特征在于：所述步骤3中的干燥时间为5min。6. the resource utilization method of a kind of bamboo slag according to any one of claim 1-3, is characterized in that: the drying time in described step 3 is 5min. 7.根据权利要求1-3任一项所述的一种竹渣的资源化利用方法，其特征在于：所述步骤1的竹渣通过转速为3000～39000r/min多功能粉碎机进行粉碎。7. The resource utilization method of a kind of bamboo slag according to any one of claims 1-3, characterized in that: the bamboo slag in the step 1 is pulverized by a multifunctional pulverizer with a rotating speed of 3000-39000 r/min.
CN202011352414.2A 2020-11-27 2020-11-27 Resource utilization method of bamboo residues Pending CN112482080A (en)

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Publication number Priority date Publication date Assignee Title
CN114293398A (en) * 2021-12-30 2022-04-08 江苏富淼科技股份有限公司 Paper sheet making equipment and process thereof
CN114921999A (en) * 2022-05-19 2022-08-19 陕西科技大学 Method for preparing filling paper by adding OCC paper pulp into wheat straw and utilizing resources

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Application publication date: 20210312