阅读说明：本技术 一种云母浆液制备工艺及其设备 (Mica slurry preparation process and equipment thereof ) 是由 郑敏敏 葛凡 黄静 杨鸣 丁锡海 于 2020-07-27 设计创作，主要内容包括：一种云母浆液制备工艺及其设备,属于云母加工制备技术领域,其制备步骤包括如下：步骤一：云母原料处理；步骤二：对云母进行改性处理；步骤三：制浆；步骤四：抄造；步骤五：烘干：其次,在烘干过程中,采用的烘干设备,包括预烘组件和烘缸、支撑柱、曲度张力调节组件和支架；本发明通过对云母原料进行改性处理以及搭配其余组分,增强其力学性能,其次,通过可延伸的预热组件适用不同尺寸规格的云母纸生产,同时,设置有曲张度自动调节器,可以实现云母纸曲张度的自动调节,解决了云母纸在烘干过程中起皱、破裂等技术问题,另外,进行预热处理后,缩短烘干时间,提高生产效率。(A mica slurry preparation process and equipment thereof belong to the technical field of mica processing and preparation, and the preparation steps comprise the following steps: the method comprises the following steps: mica raw material treatment; step two: modifying mica; step three: pulping; step four: manufacturing paper with pulp; step five: drying: secondly, in the drying process, the adopted drying equipment comprises a pre-drying component, a drying cylinder, a support column, a curvature tension adjusting component and a bracket; according to the invention, the mica raw material is modified and matched with other components, so that the mechanical property of the mica paper is enhanced, the extensible preheating component is suitable for producing mica paper with different sizes, and meanwhile, the automatic curvature regulator is arranged, so that the automatic curvature regulation of the mica paper can be realized, the technical problems of wrinkling, cracking and the like of the mica paper in the drying process are solved, in addition, the drying time is shortened after the preheating treatment is carried out, and the production efficiency is improved.)

1. A mica slurry preparation process is characterized by comprising the following steps: the preparation method comprises the following steps:

the method comprises the following steps: mica raw material treatment; crushing a mica raw material by using a crusher, and screening mica fragments with different specifications by using a vibrating screen for later use;

step two: modifying mica; modifying the surface of mica by using proper amount of ethylenediamine tetraacetic acid and cationic starch;

step three: pulping; adopting hydraulic pulping, and storing the prepared modified mica raw pulp in a refined pulp tank;

step four: manufacturing paper with pulp; stirring and mixing the modified mica raw stock, urea-formaldehyde resin, aramid fiber, polyacrylamide, ethylene diamine tetraacetic acid and water to prepare mica paper pulp; finally, the mica paper pulp is made into mica paper;

step five: drying: and D, drying the mica paper prepared in the step four, and controlling the moisture content to be between the percent and the percent, so as to obtain a finished mica paper product.

2. The process of claim 1 for preparing a mica slurry, wherein: the components in the fourth step are 20-29 parts of urea-formaldehyde resin, 14-18 parts of aramid fiber, 3-7 parts of polyacrylamide, 4-10 parts of ethylene diamine tetraacetic acid, 90-100 parts of water and 350 parts of modified mica raw stock according to the mass ratio.

3. A drying apparatus for use in a process for preparing a mica slurry as claimed in any one of claims 1 to 2, comprising a pre-drying assembly and a drying cylinder, a support column, a curvature tension adjusting assembly and a support; the upside of dryer is provided with the subassembly of drying by the fire in advance, the left and right sides of the subassembly lower surface of drying by the fire in advance with support column fixed connection, just be provided with the source that generates heat under the subassembly of drying by the fire in advance, the source that generates heat is used for providing the required heat of mica paper stoving, just the source that generates heat sets firmly in the up end of support column, wherein, the upper surface of the subassembly of drying by the fire in advance is provided with the marking off subassembly, secondly, the left and right sides of support column all fixedly is provided with the support, one side that the support column was kept away from to the support rotates and is provided with the rotation wheel, and the left side the up end of support slides and is provided with auxiliary.

4. The drying apparatus according to claim 3, wherein: the auxiliary assembly comprises a first connecting rod, a pressing wheel, a second connecting rod and an inclined plate; the upper end of head rod is rotated and is provided with the pinch roller, just the right side of head rod is provided with the second connecting rod, the upper end slope of second connecting rod is provided with the swash plate, and it is worth noting, the swash plate upwards extends to in the subassembly left side opening of drying in advance, and wherein, the lower extreme of head rod and second connecting rod slides and sets up in the left side the up end of support, particularly, the left side promptly the spout has been seted up to the up end of support, the spout inside has set firmly the slide bar, the head rod with the lower extreme of second connecting rod is inserted and is located in the spout, and the cover is located on the slide bar.

5. The drying apparatus according to claim 4, wherein: the pre-baking assembly comprises a first plate, a second plate, a first extension plate and a second extension plate; the first board with the interval sets up about the second board, just the first board with the extending groove has all been seted up to the terminal surface about the second board, and what the value was noticed, the upside the inside of extending groove slides and is provided with first extending plate, downside the inside of extending groove slides and is provided with the second extending plate, just first extending plate with the second extending plate passes the extending groove terminal surface and sets firmly on check baffle jointly.

6. The drying apparatus according to claim 5, wherein: the first extending plate, the second extending plate, the first plate, the second plate and the two grid baffles enclose a cavity for mica paper to slide.

7. The drying apparatus according to claim 3, wherein: the scribing component comprises a sprayer, a motor, a gear and a rack, the rack is fixedly arranged on the upper surface of the first plate, a clamping sleeve is arranged on the rack in a sliding mode, the clamping sleeve is sleeved with the gear, the gear and the rack are meshed with each other, one end of the gear is connected with the output end of the motor in a power mode, the other end of the gear is connected with the sprayer in a bolted mode, and the lower end of the sprayer penetrates through the upper end wall of the first plate and extends into the cavity.

8. The drying apparatus according to claim 3, characterized in that: the curvature tension adjusting assembly comprises an upright post and a bidirectional threaded shaft, wherein the end surface of the upright post, which is far away from the support column, is provided with sliding grooves at intervals up and down, the bidirectional threaded shaft is arranged in the two sliding grooves in a penetrating manner, a first sliding rod is arranged inside the sliding groove at the upper side in a sliding manner, the first sliding rod is sleeved on the shaft body of the bidirectional threaded shaft in a threaded manner, and one end of the first sliding rod, which is far away from the upright post, is rotatably provided with a first rotating wheel; the downside the inslot portion that slides is provided with the second pole that slides, the two-way screw axis body is located to the second pole screw thread cover that slides, just the one end rotation that the stand was kept away from to the second pole that slides is provided with the second runner.

9. The drying apparatus according to claim 8, wherein: the length of the second sliding rod is smaller than that of the first sliding rod.

Technical Field

The invention belongs to the technical field of mica processing and preparation, and particularly relates to a mica slurry preparation process and equipment thereof.

Background

The mica paper is made of mica mineral through chemical pulping or hydraulic mechanical pulping at relatively slow speed in cylinder paper machine, and is then cut into paper web or plate. Mica paper has excellent properties of heat resistance, water resistance, chemical stability, high elasticity, high peeling property, great shearing force resistance, tensile strength and the like, and is widely applied to the field of electrical insulation of a wire-stripping motor at present.

In the drying process of the mica paper, the degree of curvature of the mica paper can change along with the rise of temperature and the reduction of moisture, and if the degree of curvature of the mica paper is not well controlled during baking, the mica paper is easy to wrinkle and even break.

In addition, at present, in the mica paper processing process, the manual work is more, the production efficiency is lower, and secondly, the mica paper of different size specifications needs different equipment to process production, leads to the increase of enterprise's manufacturing cost.

Disclosure of Invention

The invention aims to provide a mica slurry preparation process and equipment thereof, which are used for solving the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a mica slurry preparation process comprises the following preparation steps:

the method comprises the following steps: mica raw material treatment; crushing a mica raw material by using a crusher, and screening mica fragments with different specifications by using a vibrating screen for later use;

step two: modifying mica; modifying the surface of mica by using proper amount of ethylenediamine tetraacetic acid and cationic starch;

step three: pulping; adopting hydraulic pulping, and storing the prepared modified mica raw pulp in a refined pulp tank;

step four: manufacturing paper with pulp; stirring and mixing the modified mica raw stock, urea-formaldehyde resin, aramid fiber, polyacrylamide, ethylene diamine tetraacetic acid and water to prepare mica paper pulp; finally, the mica paper pulp is made into mica paper;

step five: drying: and D, drying the mica paper prepared in the step four, and controlling the moisture content to be between the percent and the percent, so as to obtain a finished mica paper product.

Preferably, the components in the fourth step are, by mass, 20-29 parts of urea-formaldehyde resin, 14-18 parts of aramid fiber, 3-7 parts of polyacrylamide, 4-10 parts of ethylene diamine tetraacetic acid, 90-100 parts of water, and 200-350 parts of modified mica raw stock.

A drying device comprises a pre-drying component, a drying cylinder, a supporting column, a curvature tension adjusting component and a bracket; the upside of dryer is provided with the subassembly of drying by the fire in advance, the left and right sides of the subassembly lower surface of drying by the fire in advance with support column fixed connection, just be provided with the source that generates heat under the subassembly of drying by the fire in advance, the source that generates heat is used for providing the required heat of mica paper stoving, just the source that generates heat sets firmly in the up end of support column, wherein, the upper surface of the subassembly of drying by the fire in advance is provided with the marking off subassembly, secondly, the left and right sides of support column all fixedly is provided with the support, one side that the support column was kept away from to the support rotates and is provided with the rotation wheel, and the left side the up end of support slides and is provided with auxiliary.

Preferably, the auxiliary assembly comprises a first connecting rod, a pressing wheel, a second connecting rod and an inclined plate; the upper end of head rod is rotated and is provided with the pinch roller, just the right side of head rod is provided with the second connecting rod, the upper end slope of second connecting rod is provided with the swash plate, and it is worth noting, the swash plate upwards extends to in the subassembly left side opening of drying in advance, and wherein, the lower extreme of head rod and second connecting rod slides and sets up in the left side the up end of support, particularly, the left side promptly the spout has been seted up to the up end of support, the spout inside has set firmly the slide bar, the head rod with the lower extreme of second connecting rod is inserted and is located in the spout, and the cover is located on the slide bar.

Preferably, the pre-bake assembly comprises a first plate, a second plate, a first extension plate, and a second extension plate; the first board with the interval sets up about the second board, just the first board with the extending groove has all been seted up to the terminal surface about the second board, and what the value was noticed, the upside the inside of extending groove slides and is provided with first extending plate, downside the inside of extending groove slides and is provided with the second extending plate, just first extending plate with the second extending plate passes the extending groove terminal surface and sets firmly on check baffle jointly.

Preferably, the first extending plate, the second extending plate, the first plate, the second plate and the two grid baffles jointly enclose a cavity for the mica paper to slide.

Preferably, the scribing component comprises a spray head, a motor, a gear and a rack, the rack is fixedly arranged on the upper surface of the first plate, a clamping sleeve is arranged on the rack in a sliding mode, the gear is sleeved on the clamping sleeve and meshed with the rack, one end of the gear is in power connection with the output end of the motor, the other end of the gear is in bolted connection with the spray head, and the lower end of the spray head penetrates through the upper end wall of the first plate and extends into the cavity.

Preferably, the curvature tension adjusting assembly comprises an upright column and a bidirectional threaded shaft, wherein the end surface of the upright column, which is far away from the support column, is provided with sliding grooves at intervals up and down, the bidirectional threaded shaft is arranged in the two sliding grooves in a penetrating manner, a first sliding rod is arranged inside the sliding groove at the upper side in a sliding manner, the first sliding rod is sleeved on a shaft body of the bidirectional threaded shaft in a threaded manner, and one end, which is far away from the upright column, of the first sliding rod is rotatably provided with a first rotating wheel; the downside the inslot portion that slides is provided with the second pole that slides, the two-way screw axis body is located to the second pole screw thread cover that slides, just the one end rotation that the stand was kept away from to the second pole that slides is provided with the second runner.

Preferably, the length of the second sliding rod is smaller than that of the first sliding rod.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the mica raw material is modified and matched with other components, so that the mechanical property of the mica paper is enhanced, the extensible preheating component is suitable for producing mica paper with different sizes, and meanwhile, the automatic curvature regulator is arranged, so that the automatic curvature regulation of the mica paper can be realized, the technical problems of wrinkling, cracking and the like of the mica paper in the drying process are solved, in addition, the drying time is shortened after the preheating treatment is carried out, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the construction of the pre-bake assembly of the present invention;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1 taken on axis at "A";

FIG. 4 is an enlarged view of a portion of FIG. 2 at "B";

FIG. 5 is a schematic view of a portion of the preheat assembly of the present invention;

FIG. 6 is a schematic view of the construction of the scoring assembly of the present invention;

fig. 7 is a line drawing of an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be eliminated 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 embodiments.