阅读说明：本技术 一种玄武岩纤维薄毡、制备方法及其设备 (Basalt fiber thin felt, preparation method and equipment thereof ) 是由 龙岗 李成均 张建 刘军 邓鹏� 于 2019-12-17 设计创作，主要内容包括：本发明提供用于制备玄武岩纤维薄毡的设备,属于玄武岩纤维的技术领域,包括输送机构,输送机构包括传输带,传输带连接有网带；输送机构分为输送机构前段、输送机构中段和输送机构后段；输送机构前段的上方设有盛放玄武岩浆料的网前箱,所述网前箱的底部设有开口,以使盛放的玄武岩浆料均匀的洒在网带上；所述输送机构中段的下方设有抽吸组件,用于抽出附着有玄武岩浆料的网带上多余的水分；所述输送机构后段的上方设有用于喷洒粘结剂的喷洒组件；所述输送机构的后方依次设有用于烘干玄武岩纤维薄毡的烘干组件和用于收卷玄武岩纤维薄毡的收卷辊。本发明提供用于制备玄武岩纤维薄毡的设备,设备简单,可连续性生产玄武岩纤维薄毡,提高工作效率。(The invention provides equipment for preparing a basalt fiber thin felt, which belongs to the technical field of basalt fibers and comprises a conveying mechanism, wherein the conveying mechanism comprises a conveying belt, and the conveying belt is connected with a mesh belt; the conveying mechanism is divided into a front conveying mechanism section, a middle conveying mechanism section and a rear conveying mechanism section; a front net box for containing basalt slurry is arranged above the front section of the conveying mechanism, and an opening is formed in the bottom of the front net box so that the contained basalt slurry can be uniformly sprinkled on the net belt; a suction assembly is arranged below the middle section of the conveying mechanism and used for sucking out excessive moisture on the mesh belt attached with the basalt slurry; a spraying assembly for spraying the adhesive is arranged above the rear section of the conveying mechanism; and a drying component for drying the basalt fiber thin felt and a winding roller for winding the basalt fiber thin felt are sequentially arranged behind the conveying mechanism. The equipment for preparing the basalt fiber thin felt provided by the invention is simple, can be used for continuously producing the basalt fiber thin felt, and improves the working efficiency.)

1. An apparatus for preparing a basalt fiber mat, characterized in that,

the device comprises a conveying mechanism, wherein the conveying mechanism comprises a conveying belt, and the conveying belt is connected with a mesh belt; the conveying mechanism is divided into a front conveying mechanism section, a middle conveying mechanism section and a rear conveying mechanism section;

a front net box for containing basalt slurry is arranged above the front section of the conveying mechanism, and an opening is formed in the bottom of the front net box so that the contained basalt slurry can be uniformly sprinkled on the net belt;

a suction assembly is arranged below the middle section of the conveying mechanism and used for sucking out excessive moisture on the mesh belt attached with the basalt slurry;

a spraying assembly for spraying the adhesive is arranged above the rear section of the conveying mechanism;

and a drying component for drying the basalt fiber thin felt and a winding roller for winding the basalt fiber thin felt are sequentially arranged behind the conveying mechanism.

2. The apparatus for manufacturing basalt fiber mat according to claim 1, wherein: the transmission path of transmission band is right trapezoid, conveying mechanism anterior segment is located the oblique waist department of right trapezoid, conveying mechanism middle section and conveying mechanism back end are located top edge department on the right trapezoid.

3. The apparatus for manufacturing basalt fiber mat according to claim 2, wherein: the suction assembly comprises a vacuum sucker and a water receiving disc, the vacuum sucker is located below the middle section of the conveying mechanism, one end of the water receiving disc is connected with the bottom of the vacuum sucker, and the other end of the water receiving disc is connected with the bottom of the front end of the conveying mechanism.

4. The apparatus for manufacturing basalt fiber mat according to claim 3, wherein: the water collecting tray is characterized by further comprising a dispersing tank, the dispersing tank is connected with the net front box, a pressure pump is arranged between the dispersing tank and the net front box, and the dispersing tank is connected with the water collecting tray through a connecting pipe.

5. The apparatus for manufacturing basalt fiber mat according to claim 1, wherein: the spraying assembly comprises a spraying box, a binder is placed in the spraying box, and a plurality of spray heads are arranged at the bottom of the spraying box;

the drying assembly comprises a drying chamber, a heater for drying is arranged at the upper part of the drying chamber, and a conveying belt for conveying the basalt fiber thin felt is arranged in the middle of the drying chamber.

6. The preparation method of the basalt fiber thin felt is characterized by comprising the following preparation steps:

s1: carrying out high-temperature melting, bushing wire drawing and surface treatment on raw basalt ore to obtain basalt long fiber;

s2: bundling and chopping basalt long fibers to prepare basalt short fibers;

s3: putting basalt short fibers, water and a dispersing agent into a dispersing tank in proportion, and continuously stirring to prepare homogenized basalt fiber slurry;

s4: conveying the homogenized basalt fiber slurry to a head box, and spraying the basalt fiber slurry on a mesh belt at the front section of the conveying mechanism;

s5: the mesh belt reaches the middle section of the conveying mechanism along with the uniform movement of the mesh belt, the vacuum chuck of the suction assembly is used for extracting redundant moisture from the mesh belt attached with basalt slurry, then the water pan of the suction assembly is used for collecting the moisture at the front section of the conveying mechanism and the moisture at the middle section of the conveying mechanism, and the moisture collected by the water pan is injected into the dispersion tank through a guide pipe;

s6: and (3) with the uniform movement of the mesh belt, the mesh belt reaches the rear section of the conveying mechanism, and the binder is uniformly sprayed on the mesh belt through a spraying assembly at the rear section of the conveying mechanism to form the basalt fiber thin felt.

7. The basalt fiber mat manufacturing method according to claim 6, wherein in the basalt fiber slurry manufactured in the step S3, a thickener is further added for enhancing or stabilizing the viscosity of the basalt fiber slurry;

the specific operation steps in step S3 are as follows:

s31: adding 0.1-4% by mass of basalt fibers, 0.01-0.3% by mass of a dispersing agent and water into a dispersing tank, and continuously stirring by using a stirrer until the mixture is uniformly stirred;

s32: and continuously adding the thickening agent into the dispersion tank, and continuously stirring to obtain the basalt fiber slurry.

8. The preparation method of the basalt fiber mat according to claim 6, wherein in the step S6, the mass fraction of basalt fibers in the basalt fiber mat is 90 to 97%, and the mass fraction of a binder is 3 to 10%.

9. The production method of basalt fiber mat according to claim 6, further comprising the step S7: continuously conveying the basalt fiber thin felt prepared in the step S6 to a drying assembly for drying;

step S8: and (5) collecting the basalt fiber thin felt dried in the step S7 through a winding roller.

10. The basalt fiber mat prepared by the preparation method according to any one of claims 6 to 9, wherein the thickness of the basalt fiber mat is 0.5 to 2.5mm, and the gram weight of the basalt fiber mat is 30 to 150g/m²。

Technical Field

The invention relates to the technical field of basalt fibers, in particular to a basalt fiber thin felt, a preparation method and application thereof.

Background

The basalt fiber is a continuous fiber formed by drawing a platinum-rhodium alloy wire drawing bushing at a high speed, and is a novel inorganic environment-friendly green high-performance fiber material.

The requirements on the performance of materials in the high-tech fields such as traffic safety, aviation rockets and the like are higher and higher, the materials are required to have higher strength and toughness, and the light weight of the materials is ensured to improve the performance and save the cost.

In the prior art, a basalt fiber mat is adopted to replace carbon fiber cloth, and in the prior art, patent CN107268179A, which is a basalt fiber surfacing mat and a preparation method thereof, chopped basalt fibers are added into a dispersion liquid to be dispersed to obtain a fiber slurry, the fiber slurry is formed to obtain a mat, and a first binder is applied to the mat to be cured. The prepared basalt fiber surfacing mat is simple in preparation process and high in energy consumption, and the prepared surfacing mat has the defects of poor performance, instability, uneven quality and the like.

Disclosure of Invention

One of the purposes of the invention is to provide equipment for preparing the basalt fiber thin felt, which is used for realizing the technical effects of simple structure, easy operation and low cost.

The invention is realized by the following technical scheme: an apparatus for preparing a basalt fiber mat, characterized in that,

the device comprises a conveying mechanism, wherein the conveying mechanism comprises a conveying belt, and the conveying belt is connected with a mesh belt; the conveying mechanism is divided into a front conveying mechanism section, a middle conveying mechanism section and a rear conveying mechanism section;

a front net box for containing basalt slurry is arranged above the front section of the conveying mechanism, and an opening is formed in the bottom of the front net box so that the contained basalt slurry can be uniformly sprinkled on the net belt;

a suction assembly is arranged below the middle section of the conveying mechanism and used for sucking out excessive moisture on the mesh belt attached with the basalt slurry;

a spraying assembly for spraying the adhesive is arranged above the rear section of the conveying mechanism;

and a drying component for drying the basalt fiber thin felt and a winding roller for winding the basalt fiber thin felt are sequentially arranged behind the conveying mechanism.

In order to better implement the invention, further, the transmission path of the transmission belt is in a right trapezoid shape, the front section of the conveying mechanism is located at the oblique waist of the right trapezoid shape, and the middle section of the conveying mechanism and the rear section of the conveying mechanism are located at the upper top edge of the right trapezoid shape.

In order to better realize the invention, the suction assembly further comprises a vacuum sucker and a water receiving tray, the vacuum sucker is positioned below the middle section of the conveying mechanism, one end of the water receiving tray is connected with the bottom of the vacuum sucker, and the other end of the water receiving tray is connected with the bottom of the front end of the conveying mechanism.

In order to better realize the invention, the water collecting device further comprises a dispersion tank, wherein the dispersion tank is connected with the net front box, a pressure pump is arranged between the dispersion tank and the net front box, and the dispersion tank is connected with the water collecting tray through a connecting pipe.

In order to better realize the invention, the spraying assembly further comprises a spraying box, wherein an adhesive is placed in the spraying box, and a plurality of spray heads are arranged at the bottom of the spraying box;

the drying assembly comprises a drying chamber, a heater for drying is arranged at the upper part of the drying chamber, and a conveying belt for conveying the basalt fiber thin felt is arranged in the middle of the drying chamber.

The second purpose of the invention is to provide a preparation method for preparing the basalt fiber mat, which is used for preparing the basalt fiber mat with high quality and high performance.

The invention is realized by the following technical scheme: the preparation method comprises the following preparation steps:

s1: carrying out high-temperature melting, bushing wire drawing and surface treatment on raw basalt ore to obtain basalt long fiber;

s2: bundling and chopping basalt long fibers to prepare basalt short fibers;

s3: putting basalt short fibers, water and a dispersing agent into a dispersing tank in proportion, and continuously stirring to prepare homogenized basalt fiber slurry;

s4: conveying the homogenized basalt fiber slurry to a head box, and spraying the basalt fiber slurry on a mesh belt at the front section of the conveying mechanism;

s5: the mesh belt reaches the middle section of the conveying mechanism along with the uniform movement of the mesh belt, the vacuum chuck of the suction assembly is used for extracting redundant moisture from the mesh belt attached with basalt slurry, then the water pan of the suction assembly is used for collecting the moisture at the front section of the conveying mechanism and the moisture at the middle section of the conveying mechanism, and the moisture collected by the water pan is injected into the dispersion tank through a guide pipe;

s6: and (3) with the uniform movement of the mesh belt, the mesh belt reaches the rear section of the conveying mechanism, and the binder is uniformly sprayed on the mesh belt through a spraying assembly at the rear section of the conveying mechanism to form the basalt fiber thin felt.

In order to better implement the present invention, further, in the step S3 of preparing the basalt fiber slurry, a thickener is further added for enhancing or stabilizing the viscosity of the basalt fiber slurry;

the specific operation steps in step S3 are as follows:

s31: adding 0.1-4% by mass of basalt fibers, 0.01-0.3% by mass of a dispersing agent and water into a dispersing tank, and continuously stirring by using a stirrer until the mixture is uniformly stirred;

s32: and continuously adding the thickening agent into the dispersion tank, and continuously stirring to obtain the basalt fiber slurry.

In order to better realize the method, in step S6, the mass fraction of the basalt fiber in the basalt fiber mat is 90-97%, and the mass fraction of the binder is 3-10%.

In order to better implement the present invention, further, the method further includes step S7: continuously conveying the basalt fiber thin felt prepared in the step S6 to a drying assembly for drying;

step S8: and (5) collecting the basalt fiber thin felt dried in the step S7 through a winding roller.

The invention also aims to provide a method for preparing the basalt fiber thin felt, wherein the thickness of the basalt fiber thin felt is 0.5-2.5 mm, and the gram weight of the basalt fiber thin felt is 30-150 g/m²。

The reaction mechanism is as follows:

the basalt fiber thin felt is prepared by the equipment, basalt ore is subjected to high-temperature melting, bushing wire drawing and surface treatment to obtain basalt long fiber, the basalt ore raw material is subjected to mineral treatment procedures such as component control and homogenization, the mineral treated ore raw material is fed into a tank furnace, the ore raw material is subjected to high-temperature melting at 1450-1800 ℃ in the tank furnace to obtain basalt melt, the basalt melt is quickly tensioned and supported by the porous platinum-rhodium bushing to form the fiber with the diameter of 6-18 micrometers, the surface of the basalt fiber is treated by a surface treatment agent after wire drawing and fiber forming, and the surface treatment agent mainly comprises a lubricant, a coupling agent, a film forming agent, an antistatic agent and the like.

The basalt long fibers after surface treatment are collected and arranged, specifically, a plurality of basalt long fibers after surface treatment are integrated into a unit bundle, and the basalt long fibers of the unit bundle are chopped into 5-20 mm short basalt fibers, so that the basalt short fibers are prepared.

The method comprises the steps of mixing basalt short fibers, a dispersing agent and water, wherein the mass fraction of the basalt short fibers is 0.1-4%, the mass fraction of the dispersing agent is 0.01-0.3%, the dispersing agent enables the basalt short fibers to be mutually dispersed in the continuous stirring process, the dispersing agent mainly has the effect of preventing the basalt short fibers from being crosslinked together to influence the effect of subsequently manufacturing the basalt fiber thin felt, and in the process of blending basalt fiber slurry, in order to enable the basalt fiber slurry to be viscous, the problem of settlement of the basalt short fibers caused by prolonging of parking time is avoided, so that a thickening agent is further added into a dispersing tank.

And transferring the thickened basalt fiber slurry to a mesh belt moving on a conveying mechanism through an opening at the bottom of the mesh belt front box, so that the basalt fiber slurry is attached to all the mesh belts.

The conveying mechanism mainly comprises a conveying mechanism front section, a conveying mechanism middle section and a conveying mechanism rear section, under the action of the conveying mechanism, the mesh belt attached with the basalt fiber slurry is continuously conveyed to the conveying mechanism middle section, and redundant moisture attached to the mesh belt is pumped out through a suction assembly below the conveying mechanism middle section.

After the excessive moisture is pumped out, the mesh belt attached with the basalt fiber slurry is continuously conveyed to the rear section of the conveying mechanism, the basalt fiber slurry is solidified on the mesh belt by spraying a binder, a basalt fiber thin felt is obtained, the mass fraction of basalt fibers in the basalt fiber thin felt is 90-97%, the mass fraction of the binder is 3-10%, and the step further strengthens the structure of the basalt fiber thin felt, so that the performance of the basalt fiber thin felt is improved.

The aforesaid is taken unnecessary moisture out and is gone on through the suction subassembly, specifically be provided with the suction subassembly in conveying mechanism middle section below, the water collector of this suction subassembly can be connected with the sucking disc bottom, the other end and the conveying mechanism anterior segment bottom of water collector are connected, this water collector can catch the moisture in conveying mechanism anterior segment and conveying mechanism middle section, and collect the utilization with this, specifically carry the water of collecting to the dispersion jar in, be used for the dispersion, be provided with like this and do benefit to the water economy resource, in addition, can also practice thrift the dispersant, the input of compositions such as thickener, be favorable to reducing the cost of manufacture.

And drying the obtained basalt fiber thin felt through a drying assembly, and then rolling through a rolling roller. The finally prepared basalt fiber thin felt has the thickness of 0.5-2.5 mm and the gram weight of 30-150 g/m²。

The invention has the beneficial effects that:

the equipment for preparing the basalt fiber thin felt provided by the invention is simple, can continuously produce the basalt fiber thin felt, and improves the working efficiency;

according to the equipment for preparing the basalt fiber thin felt, the transmission path of the transmission belt is set to be in the right trapezoid shape, the front section of the conveying mechanism is arranged at the oblique waist of the right trapezoid shape, the middle part of the conveying mechanism is provided with the suction assembly, water in the front section of the conveying mechanism and the middle section of the conveying mechanism is collected through the water receiving disc of the suction assembly, and finally the collected water is recycled to the dispersion tank through the connecting pipe for secondary utilization, so that the purposes of saving water, saving dispersing agents and the like are achieved, and the production cost of enterprises is saved.

The basalt fiber thin felt prepared by the preparation method of the basalt fiber thin felt provided by the invention has more stable quality and more excellent performance, and is more suitable for the fields of electronics, automobile manufacturing, rail transit, vehicles and ships, airplanes, aircraft shells, internal structures and the like.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings that are required to be used in the present invention will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of an apparatus for manufacturing a basalt fiber mat according to the present invention;

FIG. 2 is a process flow diagram of a method for making a basalt fiber mat in accordance with the present invention.

Icon: 10-a front net box, 21-a front conveying mechanism section, 22-a middle conveying mechanism section, 23-a rear conveying mechanism section, 30-a suction assembly, 31-a vacuum sucker, 32-a water receiving disc, 40-a spraying box, 50-a drying chamber, 51-a heater and 60-a winding roller.

Detailed Description

The technical solution of the present invention will be described below with reference to the accompanying drawings.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.