CN111648152A - Production method of high-density mica paper - Google Patents
Production method of high-density mica paper Download PDFInfo
- Publication number
- CN111648152A CN111648152A CN202010466687.3A CN202010466687A CN111648152A CN 111648152 A CN111648152 A CN 111648152A CN 202010466687 A CN202010466687 A CN 202010466687A CN 111648152 A CN111648152 A CN 111648152A
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- China
- Prior art keywords
- mica
- paper
- mica paper
- pulp
- carrying
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Classifications
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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
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
-
- 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
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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
- D21F1/00—Wet end 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
- D21F3/00—Press section of machines for making continuous webs of paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
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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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/44—Flakes, e.g. mica, vermiculite
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention belongs to the field of mica paper production, and provides a production method of high-density mica paper, which comprises the following steps: carrying out heat treatment on the selected mica material for two times; carrying out secondary crushing; grading by a three-way cyclone and a three-way grading sieve; adsorbing with 12000 Gauss high magnet; introducing mica pulp sheets into a fine pulp tank; extracting mica pulp in the fine pulp tank to a cylinder paper machine for papermaking; pressing the manufactured mica paper for multiple times, drying the mica paper by a drying cylinder of a paper machine, cooling the mica paper by a cooling cylinder, and then performing calendaring treatment; and reeling and slitting the calendered mica paper. The mica paper prepared by the production method has higher density, smaller volume and uniform thickness after being made into a plate-shaped or strip-shaped high-temperature-resistant insulating material, and can meet the development requirement of a new energy industry; the safety of industrial and household appliances is improved; the efficiency of production operation is improved, the cost of labor has been saved for enterprise's production.
Description
Technical Field
The invention belongs to the field of mica paper production, and particularly relates to a production method of high-density mica paper.
Background
The new energy industry in China is the development focus, a large number of industries and household appliances need a large number of products such as high-density insulating mica paper and the like, the insulating mica paper has excellent electrical performance and high-temperature resistance, has good permeability and air permeability, can be impregnated and pressed into high-quality plate-shaped heat-resistant insulating materials by epoxy resin, organic silicon resin and the like, and can also be impregnated and pressed into high-quality belt-shaped high-temperature-resistant insulating materials by glass fiber cloth, films, ceramic fibers and the like through epoxy or organic silicon resin. The existing mica paper has low density, large volume, uneven thickness and low mica content after being made into a plate-shaped or strip-shaped high-temperature-resistant insulating material.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a production method of high-density mica paper, the mica paper produced by the method has higher density, smaller volume and uniform thickness after being made into a plate-shaped or belt-shaped high-temperature-resistant insulating material, and can meet the development requirements of new energy industry.
The purpose of the invention is realized by the following technical scheme.
A production method of high-density mica paper comprises the following steps:
(1) selecting a clean mica material with uniform sheet diameter and no spots, and carrying out heat treatment on the selected mica material for two times;
(2) crushing the mica material after heat treatment by a secondary crushing system;
(3) grading the mica pulp sheet after the secondary crushing by a three-way cyclone and a three-way grading sieve;
(4) carrying out adsorption treatment on mica pulp sheets which are graded by a cyclone and a grading sieve by using a 12000 Gauss high magnetism;
(5) introducing the mica pulp sheets subjected to adsorption treatment into a fine pulp tank;
(6) extracting mica pulp in the fine pulp tank to a cylinder paper machine for papermaking;
(7) the manufactured mica paper is subjected to multiple times of pressing treatment, so that the thickness is reduced, and the density is increased;
(8) drying the pressed mica paper by a drying cylinder of a paper machine, cooling by a cooling cylinder and then carrying out press polishing treatment;
(9) and (4) reeling and slitting the calendered mica paper.
In the technical scheme, the temperature of the two heat treatments in the step (1) is 720 ℃ and 350 ℃, and the holding time is 2 hours and 1 hour.
In the technical scheme, the cloud master batch in the step (2) is crushed by a secondary crushing system, wherein the crushing pressure is 6MPa and 4MPa respectively.
In the technical scheme, the cyclone pressure of the cyclone in the step (3) is 3MPa, and the grading sieve mesh number is 250 meshes.
The mica paper prepared by the production method has higher density, smaller volume and uniform thickness after being made into a plate-shaped or strip-shaped high-temperature-resistant insulating material, and can meet the development requirement of a new energy industry; the safety of industrial and household appliances is improved; the efficiency of production operation is improved, the cost of labor has been saved for enterprise's production.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
The embodiment provides a production method of high-density mica paper, which comprises the following steps:
(1) selecting a clean mica material with uniform sheet diameter and no spots, and carrying out two heat treatments on the selected mica material, wherein the temperature of the two heat treatments is 720 ℃ and 350 ℃, and the holding time is 2 hours and 1 hour respectively;
(2) crushing the mica material subjected to heat treatment by a secondary crushing system, wherein the crushing pressure is 6MPa and 4MPa respectively;
(3) grading the mica pulp sheets subjected to secondary crushing by using a three-way cyclone and a three-way grading sieve, wherein the cyclone pressure of the cyclone is 3MPa, and the grading sieve mesh number is 250 meshes;
(4) carrying out adsorption treatment on mica pulp sheets which are graded by a cyclone and a grading sieve by using a 12000 Gauss high magnetism;
(5) introducing the mica pulp sheets subjected to adsorption treatment into a fine pulp tank;
(6) extracting mica pulp in the fine pulp tank to a cylinder paper machine for papermaking;
(7) the manufactured mica paper is pressed by three pairs of rollers, so that the thickness is reduced and the density is increased;
(8) drying the pressed mica paper by a drying cylinder of a paper machine, cooling by a cooling cylinder and then carrying out press polishing treatment;
(9) and (4) reeling and slitting the calendered mica paper.
Performance analysis:
TABLE 1 high Density mica paper Properties
As can be seen from Table 1, the mica paper produced by the production method of this example can achieve the high temperature resistance and high insulation performance of the existing mica paper, and has high density.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (5)
1. A production method of high-density mica paper is characterized by comprising the following steps:
(1) selecting a clean mica material with uniform sheet diameter and no spots, and carrying out heat treatment on the selected mica material for two times;
(2) crushing the mica material after heat treatment by a secondary crushing system;
(3) grading the mica pulp sheet after the secondary crushing by a three-way cyclone and a three-way grading sieve;
(4) carrying out adsorption treatment on mica pulp sheets which are graded by a cyclone and a grading sieve by using a 12000 Gauss high magnetism;
(5) introducing the mica pulp sheets subjected to adsorption treatment into a fine pulp tank;
(6) extracting mica pulp in the fine pulp tank to a cylinder paper machine for papermaking;
(7) the manufactured mica paper is subjected to multiple times of pressing treatment, so that the thickness is reduced, and the density is increased;
(8) drying the pressed mica paper by a drying cylinder of a paper machine, cooling by a cooling cylinder and then carrying out press polishing treatment;
(9) and (4) reeling and slitting the calendered mica paper.
2. The method of producing a high density mica paper as set forth in claim 1, characterized in that: the temperature of the two heat treatments in the step (1) is 720 ℃ and 350 ℃, and the holding time is 2 hours and 1 hour.
3. The method of producing a high density mica paper as set forth in claim 1, characterized in that: and (3) crushing the mica masterbatch in the step (2) by using a secondary crushing system, wherein the crushing pressures are 6MPa and 4MPa respectively.
4. The method of producing a high density mica paper as set forth in claim 1, characterized in that: in the step (3), the cyclone pressure of the cyclone is 3MPa, and the grading sieve mesh number is 250 meshes.
5. The method of producing a high density mica paper as set forth in claim 1, characterized in that: and (7) carrying out three-stage pressing treatment on the manufactured mica paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010466687.3A CN111648152A (en) | 2020-05-28 | 2020-05-28 | Production method of high-density mica paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010466687.3A CN111648152A (en) | 2020-05-28 | 2020-05-28 | Production method of high-density mica paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111648152A true CN111648152A (en) | 2020-09-11 |
Family
ID=72350939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010466687.3A Pending CN111648152A (en) | 2020-05-28 | 2020-05-28 | Production method of high-density mica paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111648152A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219383A (en) * | 1977-02-18 | 1980-08-26 | Valkama P J | Press section of a paper machine |
| US4526655A (en) * | 1982-09-15 | 1985-07-02 | Valmet Oy | Press section with separate press nips in a paper machine |
| CN1738941A (en) * | 2002-11-19 | 2006-02-22 | 美卓造纸机械公司 | Press section in a paper or board machine |
| CN102535252A (en) * | 2012-01-09 | 2012-07-04 | 富阳华利纸业有限公司 | Method for producing environment-friendly white cardboard |
| CN103741541A (en) * | 2014-01-11 | 2014-04-23 | 湖北平安电工材料有限公司 | Method for manufacturing mica paper by low-temperature calcining |
| CN104452428A (en) * | 2014-11-17 | 2015-03-25 | 通城县中天云母制品有限公司 | Production method of calcining type high-voltage-resisting mica paper |
| CN105070350A (en) * | 2015-06-30 | 2015-11-18 | 平江县兴科云母制品有限公司 | Manufacture process of low-flourine mica tape |
| CN105239443A (en) * | 2014-07-12 | 2016-01-13 | 平江县威派云母绝缘材料有限公司 | Environment-friendly preparation process for calcined-mica paper |
| CN106739270A (en) * | 2016-11-24 | 2017-05-31 | 东台银信钢结构工程有限公司 | A kind of high density steel plate and its production technology |
| CN106996053A (en) * | 2017-03-17 | 2017-08-01 | 湖北平安电工材料有限公司 | A kind of high heat conduction mica paper manufacture method |
-
2020
- 2020-05-28 CN CN202010466687.3A patent/CN111648152A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219383A (en) * | 1977-02-18 | 1980-08-26 | Valkama P J | Press section of a paper machine |
| US4526655A (en) * | 1982-09-15 | 1985-07-02 | Valmet Oy | Press section with separate press nips in a paper machine |
| CN1738941A (en) * | 2002-11-19 | 2006-02-22 | 美卓造纸机械公司 | Press section in a paper or board machine |
| CN102535252A (en) * | 2012-01-09 | 2012-07-04 | 富阳华利纸业有限公司 | Method for producing environment-friendly white cardboard |
| CN103741541A (en) * | 2014-01-11 | 2014-04-23 | 湖北平安电工材料有限公司 | Method for manufacturing mica paper by low-temperature calcining |
| CN105239443A (en) * | 2014-07-12 | 2016-01-13 | 平江县威派云母绝缘材料有限公司 | Environment-friendly preparation process for calcined-mica paper |
| CN104452428A (en) * | 2014-11-17 | 2015-03-25 | 通城县中天云母制品有限公司 | Production method of calcining type high-voltage-resisting mica paper |
| CN105070350A (en) * | 2015-06-30 | 2015-11-18 | 平江县兴科云母制品有限公司 | Manufacture process of low-flourine mica tape |
| CN106739270A (en) * | 2016-11-24 | 2017-05-31 | 东台银信钢结构工程有限公司 | A kind of high density steel plate and its production technology |
| CN106996053A (en) * | 2017-03-17 | 2017-08-01 | 湖北平安电工材料有限公司 | A kind of high heat conduction mica paper manufacture method |
Non-Patent Citations (1)
| Title |
|---|
| J.P.凯西: "《制浆造纸化学工艺学》", 31 March 1988, 轻工业出版社 * |
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| CB02 | Change of applicant information |
Address after: No. 242, Tongcheng Avenue, Tongcheng County, Xianning City, Hubei Province 437400 Applicant after: Hubei Ping'an Electric Technology Co.,Ltd. Address before: 437400 Building 1, 226 Yuli Avenue, junshui Town, Tongcheng County, Xianning City, Hubei Province Applicant before: PAMICA ELECTRIC MATERIAL (HUBEI) Co.,Ltd. |
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Application publication date: 20200911 |
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| RJ01 | Rejection of invention patent application after publication |