CN111101403A - Process and method for manufacturing sheet paper by using crop straws - Google Patents
Process and method for manufacturing sheet paper by using crop straws Download PDFInfo
- Publication number
- CN111101403A CN111101403A CN201911242948.7A CN201911242948A CN111101403A CN 111101403 A CN111101403 A CN 111101403A CN 201911242948 A CN201911242948 A CN 201911242948A CN 111101403 A CN111101403 A CN 111101403A
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- China
- Prior art keywords
- crop
- sheet paper
- slurry
- straw
- crop straws
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
- D21J3/12—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of sheets; of diaphragms
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/224—Use of means other than pressure and temperature
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention discloses a process and a method for manufacturing sheet paper by crop straws, which comprises the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, and heating to 90 deg.C. The invention has simple preparation process and low production cost, can effectively utilize crop straws, and the prepared straw board adopts the resorcinol adhesive, has water resistance and weather resistance, improves the overall performance of the board and is beneficial to the use of people.
Description
Technical Field
The invention relates to the technical field of straw utilization, in particular to a process and a method for manufacturing sheet paper by using crop straws.
Background
The straw is a general term of stem and leaf parts of mature crops, generally refers to the residual parts of wheat, rice, corn, potatoes, rape, cotton, sugarcane and other crops after seeds are harvested, more than half of the products of crop photosynthesis exist in the straw, the straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, is a multipurpose renewable biological resource, and is a coarse feed, and the straw is characterized by high content of coarse fibers, contains lignin and the like, and the lignin cellulose cannot be utilized by pigs and chickens, but can be absorbed and utilized by livestock such as ruminants, cattle and sheep.
With the rapid development of the artificial board industry, the insufficient supply of wood raw materials becomes a main factor restricting the development of the artificial boards, the substitute materials of wood are sought to become the problems which need to be solved urgently in the development of the artificial boards, the application of the straw board with the characteristics of high quality, low price, environmental protection, low pollution, cyclic utilization and the like to replace the wood raw materials inevitably has wide market space, the existing straw board can improve the resource utilization rate, but the board is easy to absorb moisture under the humid condition, so that the connection strength between the straw material and other materials is reduced, the performance of the whole board is influenced, and the use of people is not facilitated.
Disclosure of Invention
The invention aims to provide a process and a method for manufacturing sheet paper by using crop straws, which have the advantage of convenience in use of the sheet paper and solve the problem of inconvenience in use of straw boards.
In order to achieve the purpose, the invention provides the following technical scheme: a process and a method for manufacturing sheet paper by crop straws comprise the following steps:
step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder;
step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred;
and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry;
and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution;
and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank;
step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Preferably, the crop straws can be one or a combination of rice straws, corn straws, wheat straws, sorghum straws and rape straws.
Preferably, the water content of the crop straws aired in the step 1 is 12%, and the particle size of the crushed crop straws is 100 meshes.
Preferably, the rotation speed of the stirrer in the step 2 is 100r/min, and the water injection amount in the stirrer is 2 times of the weight of the crop crushed material.
Preferably, the water injection amount in the step 4 is 4 times of the total weight of the starch fiber, the fast-growing eucalyptus fiber, the bamboo charcoal powder, the sepiolite powder and the carboxymethyl starch, and the stirring time is 30 min.
Preferably, the rotating speed in the step 5 is 300r/min, the stirring time is 2h, the ultraviolet irradiation is performed for 30min, and the ultraviolet irradiation wavelength is 270 nm.
Preferably, the hot pressing temperature in the step 6 is 100 ℃, and the hot pressing pressure is 45 Mpa.
Compared with the prior art, the invention has the following beneficial effects: the invention has simple preparation process and low production cost, can effectively utilize crop straws, and the prepared straw board adopts the resorcinol adhesive, has water resistance and weather resistance, improves the overall performance of the board and is beneficial to the use of people.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following 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.
A process and a method for manufacturing sheet paper by crop straws comprise the following steps:
step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder;
step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred;
and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry;
and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution;
and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank;
step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Example 1
A process and a method for manufacturing sheet paper by crop straws comprise the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution; and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank; step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Example 2
In example 1, the following steps were added:
the crop straw can be one or a combination of rice straw, corn straw, wheat straw, sorghum straw and rape straw.
A process and a method for manufacturing sheet paper by crop straws comprise the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution; and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank; step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Example 3
In example 2, the following steps were added:
the water content of the crop straws dried in the step 1 is 12%, and the particle size of the crushed crop straws is 100 meshes.
A process and a method for manufacturing sheet paper by crop straws comprise the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution; and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank; step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Example 4
In example 3, the following steps were added:
in the step 2, the rotating speed of the stirrer is 100r/min, and the water injection amount in the stirrer is 2 times of the weight of the crop crushed material.
A process and a method for manufacturing sheet paper by crop straws comprise the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution; and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank; step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Example 5
In example 4, the following steps were added:
and 4, water injection amount is 4 times of the total weight of the starch fiber, the fast-growing eucalyptus fiber, the bamboo charcoal powder, the sepiolite powder and the carboxymethyl starch, and stirring time is 30 min.
A process and a method for manufacturing sheet paper by crop straws comprise the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution; and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank; step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Example 6
In example 5, the following steps were added:
in the step 5, the rotating speed is 300r/min, the stirring time is 2h, the ultraviolet irradiation is carried out for 30min, and the ultraviolet irradiation wavelength is 270 nm.
A process and a method for manufacturing sheet paper by crop straws comprise the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution; and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank; step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Example 7
In example 6, the following steps were added:
and 6, the hot pressing temperature is 100 ℃, and the hot pressing pressure is 45 Mpa.
A process and a method for manufacturing sheet paper by crop straws comprise the following steps: step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder; step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred; and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry; and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution; and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank; step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A process and a method for manufacturing sheet paper by crop straws are characterized in that: the method comprises the following steps:
step 1: cutting the aired crop straws into crop straw sections, and then crushing the crop straw sections to obtain crop powder;
step 2: putting the crushed crop into a stirrer, and then injecting water into the stirrer to prepare pulp until the pulp is uniformly stirred;
and step 3: filtering the uniformly stirred slurry through a screen to remove impurities in the slurry, and then scattering the slurry through a disperser to obtain raw slurry;
and 4, step 4: adding starch fiber, fast-growing eucalyptus fiber, bamboo charcoal powder, sepiolite powder and carboxymethyl starch into water, heating to 90 ℃, stirring, adding sodium persulfate, and stirring again to obtain a mixed solution;
and 5: adding the mixed solution obtained in the step 4 into the primary pulp obtained in the step 3, then adding a resorcinol adhesive, stirring, and then carrying out ultraviolet irradiation to obtain a sheet paper blank;
step 6: and putting the sheet paper blank into a mould for hot press molding to obtain a hot-pressed sheet paper finished product.
2. The process and method for making sheet paper by using crop straws as claimed in claim 1, wherein the process comprises the following steps: the crop straw can be one or a combination of rice straw, corn straw, wheat straw, sorghum straw and rape straw.
3. The process and method for making sheet paper by using crop straws as claimed in claim 1, wherein the process comprises the following steps: the water content of the crop straws aired in the step 1 is 12%, and the particle size of the crushed crop straws is 100 meshes.
4. The process and method for making sheet paper by using crop straws as claimed in claim 1, wherein the process comprises the following steps: in the step 2, the rotating speed of the stirrer is 100r/min, and the water injection amount in the stirrer is 2 times of the weight of the crop crushed material.
5. The process and method for making sheet paper by using crop straws as claimed in claim 1, wherein the process comprises the following steps: the water injection amount in the step 4 is 4 times of the total weight of the starch fiber, the fast-growing eucalyptus fiber, the bamboo charcoal powder, the sepiolite powder and the carboxymethyl starch, and the stirring time is 30 min.
6. The process and method for making sheet paper by using crop straws as claimed in claim 1, wherein the process comprises the following steps: in the step 5, the rotating speed is 300r/min, the stirring time is 2h, the ultraviolet irradiation is carried out for 30min, and the ultraviolet irradiation wavelength is 270 nm.
7. The process and method for making sheet paper by using crop straws as claimed in claim 1, wherein the process comprises the following steps: and 6, the hot pressing temperature is 100 ℃, and the hot pressing pressure is 45 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242948.7A CN111101403A (en) | 2019-12-06 | 2019-12-06 | Process and method for manufacturing sheet paper by using crop straws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242948.7A CN111101403A (en) | 2019-12-06 | 2019-12-06 | Process and method for manufacturing sheet paper by using crop straws |
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| Publication Number | Publication Date |
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| CN111101403A true CN111101403A (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911242948.7A Pending CN111101403A (en) | 2019-12-06 | 2019-12-06 | Process and method for manufacturing sheet paper by using crop straws |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310264A (en) * | 2001-04-03 | 2001-08-29 | 王春江 | Making process of regenerated pulp board |
| JP2002219314A (en) * | 2000-11-24 | 2002-08-06 | Hiromi Nagasaki | Filter and filter arranging device |
| CN106702805A (en) * | 2017-03-09 | 2017-05-24 | 桂林融通科技有限公司 | Degradable plant fiber paper preparation method |
| CN109112878A (en) * | 2017-06-23 | 2019-01-01 | 南通金庆美术图案设计有限公司 | A kind of environmental protection vegetable fiber paper |
| CN110078975A (en) * | 2019-05-22 | 2019-08-02 | 合肥天沃能源科技有限公司 | A kind of preparation process of agricultural crop straw regenerated plates |
-
2019
- 2019-12-06 CN CN201911242948.7A patent/CN111101403A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002219314A (en) * | 2000-11-24 | 2002-08-06 | Hiromi Nagasaki | Filter and filter arranging device |
| CN1310264A (en) * | 2001-04-03 | 2001-08-29 | 王春江 | Making process of regenerated pulp board |
| CN106702805A (en) * | 2017-03-09 | 2017-05-24 | 桂林融通科技有限公司 | Degradable plant fiber paper preparation method |
| CN109112878A (en) * | 2017-06-23 | 2019-01-01 | 南通金庆美术图案设计有限公司 | A kind of environmental protection vegetable fiber paper |
| CN110078975A (en) * | 2019-05-22 | 2019-08-02 | 合肥天沃能源科技有限公司 | A kind of preparation process of agricultural crop straw regenerated plates |
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Application publication date: 20200505 |