CN112981563B - A kind of hollow basalt fiber manufacturing device and manufacturing method - Google Patents

Abstract

The invention discloses a device and a method for manufacturing hollow basalt fibers, and relates to the technical field of basalt manufacturing. The device comprises crushing equipment, lava equipment and wire drawing equipment, wherein the crushing equipment is used for crushing basalt ore, the lava equipment is used for enabling the basalt ore to be in a molten state, and the wire drawing equipment is used for carrying out wire drawing treatment on the basalt ore in the molten state; the wire drawing equipment comprises a wire drawing kiln and a wire drawing bushing, the wire drawing kiln is used for melting basalt ore, the wire drawing bushing comprises a bushing body, a filter screen and a needle core assembly, the bushing body is provided with a cavity, the cavity is provided with an opening and a bottom wall which are oppositely arranged, the filter screen cover is arranged at the opening, the filter screen is provided with a through hole, the through hole is communicated with the cavity, the bottom wall is provided with a mounting hole, and the needle core assembly is mounted in the mounting hole. The manufacturing method of the hollow basalt fiber manufacturing device can realize the manufacturing of the hollow basalt fiber, and has better cost control.

Description

A kind of hollow basalt fiber manufacturing device and manufacturing method

technical field

The invention relates to the technical field of basalt production, in particular to a hollow basalt fiber production device and a production method.

Background technique

Basalt continuous fiber is a pure natural inorganic non-metallic material, which is one of the most important components in the new material industry. Traditional solid basalt fibers generally have a higher density, usually around 2.6-2.7g/ ^cm3 . It is generally used in the fiber reinforced composite material industry as a structural bearing, resulting in a high density of the composite material. At the same time, the sound insulation and heat insulation properties of solid fibers are weak, and it is difficult to exert the integrated characteristics of fiber structure and function at the same time. The traditional solid basalt fiber is greatly limited in the application field that needs to meet the structural and functional requirements at the same time.

In the process of realizing the technical solution, the inventor of the present application found that the current molding equipment for basalt fibers is aimed at traditional solid fibers, and there is no molding equipment related to the manufacture of hollow basalt fibers.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a hollow basalt fiber manufacturing device and a manufacturing method, so as to solve the problems existing in the above-mentioned prior art, and can realize the manufacture of hollow basalt fiber with better cost control.

For achieving the above object, the present invention provides the following scheme:

The invention provides a hollow basalt fiber manufacturing device, comprising crushing equipment, lava equipment and wire drawing equipment. It is used for wire drawing treatment of molten basalt ore; the wire drawing equipment includes a wire drawing kiln and a wire drawing bushing, the wire drawing kiln is used for melting the basalt ore, and the wire drawing bushing comprises a bushing body, a filter Net and needle core assembly, the bushing body has a cavity, the top of the cavity is provided with an opening, the bottom is installed with a bottom wall, the filter screen is laid on the opening, and the filter net is evenly opened with a plurality of A plurality of installation holes are arranged on the bottom wall of the through hole communicating with the chamber, and each of the installation holes is installed with one of the needle core assemblies.

Optionally, two ends of the bottom of the drain plate body are symmetrically provided with drain plate electrodes, and the drain plate electrodes are provided with connection holes.

Optionally, the wire drawing drain plate further includes a connection terminal, the connection terminal is disposed on the drain plate body, and the connection terminal is located on the side wall of the drain plate body between the two drain plate electrodes.

Optionally, symmetrically arranged positioning portions are installed on the filter net, a limiting portion is provided on the peripheral edge of the top of the bushing body, and the positioning portion can be matched and connected with the limiting portion.

Optionally, the needle core assembly includes a needle core body and a leakage nozzle, the leakage nozzle is located outside the chamber and is arranged on the outer bottom wall of the leakage plate body, and the leakage nozzle is coaxial with the installation hole. The needle core body is mounted on the mounting hole, and the lower end of the needle core body passes through the mounting hole and the leak nozzle in sequence, and an annular ring is arranged between the needle core body and the inner wall of the leak nozzle. gap.

Optionally, the needle core body includes an installation part and an extension part that are connected to each other, the installation part is installed in the installation hole, and the extension part extends from the installation hole to the outside of the cavity and is connected with the installation hole. The annular gap is provided between the leak nozzles.

Optionally, the mounting portion is provided with a groove communicating with the cavity and the mounting hole.

Optionally, the mounting hole includes a first mounting hole and a second mounting hole that communicate with each other, the diameter of the first mounting hole is larger than that of the second mounting hole, and the mounting portion is mounted on the first mounting hole. At the mounting hole, the first mounting hole communicates with the cavity and the groove, and the extension portion extends outward from the second mounting hole.

Optionally, it also includes cleaning equipment and drying equipment, the cleaning equipment is used for cleaning and removing impurities from the basalt ore, and the drying equipment is used for drying the cleaned basalt ore.

The present invention also provides a method for manufacturing the hollow basalt fiber based on the above device, comprising the following steps:

1) Rinse the basalt ore, remove the impurities attached to the surface, and send the ore into a blast dryer to remove moisture;

2) Preliminarily pulverizing the basalt ore, adding it to the basalt lava furnace, heating up to 1500 ° C, and cooling and solidifying the liquid basalt ore into an amorphous bulk raw material;

3) Assembly of the wire drawing bushing and preparation of the wire drawing furnace body, the diameter of the needle core of the needle core assembly is 1.5mm, the inner diameter of the leak nozzle is 2.5mm, and the end of the needle core is ground into a conical shape;

4) Then, the processed ore is pulverized with a pulverizer, and the fineness is 2.0-4.0 mm to obtain basalt ore powder; it is added to the wire drawing kiln, and the temperature is raised to 1200-1400 ℃, so that the ore powder is melted and turned into a liquid state; The basalt hollow fiber is formed by drawing the bushing plate and rapidly cooling in the air, and the basalt hollow fiber is rapidly drawn under the action of the tension roller, and the drawing speed is adjusted. The final prepared basalt hollow fiber has an outer diameter of 10-14 μm and an inner diameter of 6-8 μm.

The present invention has achieved the following technical effects with respect to the prior art:

The crushing equipment of the hollow basalt fiber manufacturing device provided by the present invention is used for crushing basalt ore, the lava equipment is used for making the basalt ore in a molten state, the wire drawing equipment is used for drawing the basalt ore in a molten state, and the wire drawing kiln is used for melting Basalt ore, the bushing body is used to set a chamber, and the opening of the chamber is used to cooperate with the filter screen, so that the molten basalt can enter the chamber. The bottom wall of the chamber is provided with a mounting hole for installing the needle core assembly, so that the molten basalt in the chamber is formed by the needle core assembly, thereby realizing the manufacture of the hollow basalt fiber. The hollow basalt fiber manufacturing system provided by the invention can realize the manufacture of the hollow basalt fiber, and the cost is well controlled.

The hollow basalt fiber prepared by using the wire drawing bushing plate of the present invention has a low density, and its density is about 1.5-2 g/cm3. The basalt fiber produced by the wire drawing bushing plate has a circular hollow structure and an outer diameter of 7-20 μm. about 5-10μm in inner diameter. By adjusting the diameter and length of the outer leakage nozzle and needle core assembly, the electrode heating temperature of the leakage plate and the drawing speed, the diameter of the basalt hollow fiber is controlled, and the temperature non-uniformity of the fiber surface and inner layer is reduced compared with the traditional solid basalt fiber. , the core-skin phenomenon is reduced, the defects and porosity of the drawn hollow basalt fibers are reduced relative to the traditional basalt fibers, and the tensile strength and modulus are higher than those of the traditional solid basalt fibers.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

1 is a schematic structural diagram of a basalt wire drawing bushing provided by an embodiment of the present invention;

2 is a schematic cross-sectional structural diagram of a basalt wire drawing bushing provided by an embodiment of the present invention;

3 is a schematic structural diagram of a bushing body provided by an embodiment of the present invention;

4 is a schematic structural diagram of a filter screen provided by an embodiment of the present invention;

Fig. 5 is the enlarged structure schematic diagram of V place in Fig. 2;

6 is a schematic structural diagram of a needle core assembly provided by an embodiment of the present invention from a first perspective;

7 is a schematic structural diagram of a needle core assembly provided by an embodiment of the present invention from a second viewing angle;

8 is a schematic structural diagram of a needle core body provided by an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional structural diagram of a mounting hole provided by an embodiment of the present invention.

Reference numeral description: 10-basalt wire drawing bushing; 100- bushing body; 101-chamber; 102-opening; 110-bottom wall; 112-installation hole; 1121-first installation hole; 1122-second installation hole ; 120-side wall; 130-leaky plate electrode; 140-limiting part; 200-filter; 201-through hole; 210-positioning part; 300-pin core assembly; 301-annular gap; - Contact body; 311 - mounting part; 312 - extension part; 320 - leaking nozzle; 400 - connecting terminal.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a hollow basalt fiber manufacturing device and a manufacturing method, so as to solve the problems existing in the above-mentioned prior art, and can realize the manufacture of hollow basalt fiber with better cost control.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 to FIG. 9 , the present embodiment provides a hollow basalt fiber manufacturing system, which can realize the manufacturing of hollow basalt fibers and has better cost control.

It should be noted that the hollow basalt fiber manufacturing system provided in this embodiment can be used to manufacture hollow basalt fibers. The existing hollow basalt fiber manufacturing system can only be used to manufacture solid basalt fibers. The sound insulation and heat insulation properties of solid fibers are weak, and it is difficult to simultaneously exert the integrated characteristics of the structure and function of the fibers. The traditional realization of basalt fibers requires simultaneous The fields of application that meet the structural and functional requirements are greatly restricted. The hollow basalt fiber manufacturing system provided by this embodiment can manufacture hollow basalt fiber, the hollow basalt fiber greatly improves the sound insulation and heat insulation performance, and can be used for building interior wall materials and rail transit interior materials; Hollow basalt fibers can replace ultrafiltration membranes for material separation and purification. By changing the inner diameter of the hollow fibers and the microstructure of the fiber surface, materials can be selectively separated.

The hollow basalt fiber manufacturing system provided in this embodiment includes crushing equipment, lava equipment and wire drawing equipment. The crushing equipment is used for crushing basalt ore, the lava equipment is used to make the basalt ore in a molten state, and the wire drawing equipment is used for basalt ore in a molten state. The wire drawing process is carried out; the wire drawing equipment includes a wire drawing kiln and a wire drawing bushing plate 10, the wire drawing kiln is used for melting basalt ore, and the wire drawing bushing plate 10 comprises a bushing plate body 100, a filter screen 200 and a needle core assembly 300, and the bushing plate body 100 has a cavity Chamber 101, the chamber 101 has an opening 102 and a bottom wall 110 arranged oppositely, the filter screen 200 is covered with the opening 102, the filter screen 200 has a through hole 201, and the through hole 201 communicates with the chamber 101, and the bottom wall 110 is provided with a mounting The hole 112 , the needle core assembly 300 is installed in the mounting hole 112 .

It can be understood that the bushing body 100 is used to set a chamber 101 , and the opening 102 of the chamber 101 is used to cooperate with the filter screen 200 to allow molten basalt to enter the chamber 101 . The bottom wall 110 of the chamber 101 is provided with an installation hole 112 for installing the needle core assembly 300 , so that the molten basalt in the chamber 101 is formed by the needle core assembly 300 , thereby realizing the manufacture of hollow basalt fibers.

At the same time, it can also be understood that the manner in which the needle core assembly 300 is disposed in the installation hole 112 may be detachable or integrally disposed. When the needle core assembly 300 is detachably connected to the mounting hole 112, the needle core assembly 300 can be replaced as required, for example, the diameters of the hollow basalt fibers are different. The needle core assembly 300 is detachably connected to the mounting hole 112, which can facilitate the replacement of the needle core assembly 300, facilitate the replacement of needle core diameters according to different fiber requirements, and reduce the amount of platinum-rhodium alloy (the filter screen 200 usually adopts platinum-rhodium alloy), thereby Significantly reduce costs. The detachable connection between the needle core assembly 300 and the mounting hole 112 may be screw connection, snap connection, or the like.

At the same time, it should also be noted that the number of the through holes 201 on the filter screen 200 may be 60-100. Of course, it can also be set according to actual needs, which is not specifically limited here.

Optionally, the drain plate body 100 is further provided with a drain plate electrode 130 , and the drain plate electrode 130 is used to heat the drain plate body 100 when electrified.

Further, the drain plate electrodes 130 are disposed on opposite ends of the drain plate body 100 , and the drain plate electrodes 130 are provided with connection holes.

Optionally, the wire-drawn bushing 10 further includes a connection terminal 400. The connection terminal 400 is disposed on the bushing body 100 and is located on a different side of the bushing body 100 from the bushing electrode 130. The connection terminal 400 is used for electrical connection with a thermocouple to detect. The temperature of the bushing body 100 .

It should be noted that, when the wire drawing bushing 10 provided in this embodiment is in use: the crushed stone is put into the basalt wire drawing furnace, and after high temperature melting, the basalt high temperature lava first passes through the filter screen 200, and then flows into the drain Inside the chamber 101 of the plate body 100, it passes through the needle core assembly 300; when the molten liquid contacts the air, it cools and solidifies, and the basalt hollow fiber is formed by pulling the wire under the pulling force of the wire take-up device. The drain plate electrode 130 is connected to the power supply and heats the drain plate body 100 , and the connection terminal 400 is installed on the drain plate for electrical connection with a thermocouple to detect the temperature in the drain plate body 100 or the chamber 101 .

Optionally, the drain plate body 100 has four side walls 120 , the four side walls 120 and the bottom wall 110 enclose the chamber 101 , and the drain plate electrodes 130 are disposed on the two side walls 120 that are not adjacent to the four side walls 120 . On the other hand, the connection terminals 400 are disposed on the other two non-adjacent side walls 120 to facilitate the use of the connection terminals 400 and the drain electrode 130 .

Optionally, at least one of the four side walls 120 is inclined, so that the cross-sectional size of the opening 102 of the chamber 101 is larger than the cross-sectional size of the bottom wall 110 .

It can be understood that, at least one of the above-mentioned four side walls 120 is inclined, which can facilitate the flow of molten basalt along the inclined side walls 120 .

At the same time, it should also be noted that when at least one of the four side walls 120 is inclined, any side wall 120 may be inclined, for example, any one of the side walls 120 is inclined, any two side walls 120 are inclined, any three The side wall 120 is inclined or all four side walls 120 are inclined. In the implementation shown in the figure, the four side walls 120 are all inclined to ensure that the molten basalt can flow on each side wall 120 .

Optionally, the filter screen 200 is further provided with a positioning portion 210 , the bushing body 100 is provided with a limiting portion 140 , and the positioning portion 210 is connected with the limiting portion 140 to set the filtering screen 200 on the bushing body 100 .

It can be understood that, through the cooperation of the positioning portion 210 and the limiting portion 140, the filter screen 200 can be easily installed on the bushing body 100, and the positions of the two can be ensured to ensure that the molten basalt passes through the filter screen 200. The through holes 201 above enter the chamber 101 .

Optionally, the positioning portion 210 is a protrusion, and the limiting portion 140 is a limiting groove matched with the protrusion. Further, the limiting groove can penetrate through the bushing body 100 , so that the protrusion of the positioning portion 210 leaks out from the other side of the limiting groove, so as to further ensure stable connection between the two.

Please refer to FIG. 5 to FIG. 8 , optionally, the needle core assembly 300 includes a needle core body 310 and a leak nozzle 320 , the leak nozzle 320 is located outside the chamber 101 and is arranged on the leak plate body 100 , and the needle core body 310 is installed in the mounting hole 112 and pass through the leak nozzle 320 , and an annular gap 301 is provided between the needle core body 310 and the leak nozzle 320 .

It should be noted that the leaking nozzle 320 may be an annular tubular structure, and is disposed around the needle core body 310 . An annular gap 301 is formed between the needle core body 310 and the leak nozzle 320, and the needle core body 310 can also protrude from the end of the leak nozzle 320, for example, about 3-10 mm. The basalt in the chamber 101 flows into the needle core body 310 and flows along the annular gap 301 . When the basalt is exposed to cold air, the temperature cools rapidly, the viscosity of the melt increases rapidly and the phase state changes, from molten state to solid state.

Optionally, the needle core body 310 includes a mounting portion 311 and an extending portion 312 that are connected to each other, the mounting portion 311 is mounted on the mounting hole 112 , and the extending portion 312 extends from the mounting hole 112 to the outside of the chamber 101 and is provided with an annular ring between the leak nozzle 320 Gap 301 . The mounting portion 311 is used for mounting the needle core body 310 , and the extending portion 312 is used for forming an annular gap 301 with the leak nozzle 320 and extending out of the leak nozzle 320 .

Optionally, the mounting part 311 is provided with a groove 302 communicating with the chamber 101 and the mounting hole 112 , so that the molten material in the chamber 101 enters the annular gap 301 through the groove 302 and the mounting hole 112 . The above-mentioned groove 302 can facilitate the molten liquid to flow into the needle core assembly 300 and into the annular gap 301 .

Referring to FIG. 9 , optionally, the mounting hole 112 includes a first mounting hole 1121 and a second mounting hole 1122 that communicate with each other, the diameter of the first mounting hole 1121 is larger than that of the second mounting hole 1122 , and the mounting portion 311 is mounted on the first mounting hole 1121 . An installation hole 1121 , the first installation hole 1121 communicates with the cavity 101 and the groove 302 , and the extension portion 312 extends outward from the second installation hole 1122 .

Optionally, the hollow basalt fiber manufacturing system further includes cleaning equipment and drying equipment. The cleaning equipment is used for cleaning and removing impurities from the basalt ore, and the drying equipment is used for drying the cleaned basalt ore.

When using the hollow basalt fiber manufacturing system provided in this embodiment to manufacture hollow basalt fibers: the melted basalt ore is cooled and solidified into basalt amorphous ore; the basalt amorphous ore is pulverized to obtain basalt ore powder; Afterwards, the basalt ore powder is in a molten state and subjected to wire drawing to complete the manufacture of hollow basalt.

Optionally, before the basalt ore is to be melted, the method for manufacturing the hollow basalt fiber further includes: pulverizing the basalt ore; and performing melting processing on the basalt ore after the processing is completed.

Optionally, before the basalt ore is pulverized, the method for manufacturing the hollow basalt fiber further includes: washing the basalt ore to remove impurities attached to the surface of the basalt ore; after the washing is completed, drying the basalt ore.

Optionally, the step of wire drawing treatment includes: adding the basalt ore powder into the wire drawing kiln, and raising the temperature to 1200-1400 degrees Celsius, so that the basalt ore powder is melted into a liquid basalt molten liquid; passing the liquid basalt ore powder through wire drawing The bushing 10 was cooled in air to produce hollow basalt fibers.

The beneficial effects of the hollow basalt fiber manufacturing system provided by this embodiment: the crushing equipment is used for crushing basalt ore, the lava equipment is used for making the basalt ore in a molten state, the drawing equipment is used for drawing the molten basalt ore, and the drawing kiln The furnace is used to melt basalt ore, the bushing body 100 is used to set a chamber 101 , and the opening 102 of the chamber 101 is used to cooperate with the filter screen 200 to allow molten basalt to enter the chamber 101 . The bottom wall 110 of the chamber 101 is provided with an installation hole 112 for installing the needle core assembly 300 , so that the molten basalt in the chamber 101 is formed by the needle core assembly 300 , thereby realizing the manufacture of hollow basalt fibers. The hollow basalt fiber manufacturing system provided in this embodiment can realize the manufacturing of the hollow basalt fiber, and the cost is well controlled.

In addition, the present invention also provides a manufacturing method of hollow basalt fiber, comprising the following steps:

1) Rinse the basalt ore, remove the impurities attached to the surface, and send the ore into a blast dryer to remove moisture;

2) Preliminarily pulverize the basalt ore, add it to the basalt lava furnace, and heat it up to about 1500 ° C. The basalt ore is gradually melted, and the unmelted impurities are filtered out, and the liquid basalt melt is cooled and solidified into an amorphous block. The shape of the raw material, commonly known as obsidian, gradually becomes black in color, and the surface is bright.

3) Assembly of the wire drawing bushing and preparation of the wire drawing furnace body, the diameter of the needle core of the needle core assembly is selected as 1.5mm, the inner diameter of the outer leak nozzle is about 2.5mm, and the end of the needle core is ground into a conical shape.

4) Then, the processed ore is pulverized with a pulverizer, and the fineness is 2.0-4.0 mm to obtain basalt ore powder; it is added to the wire drawing kiln, and the temperature is raised to 1200-1400 ℃, so that the ore powder is melted and turned into a liquid state; The basalt hollow fiber is formed by drawing the bushing plate and rapidly cooling in the air, and the basalt hollow fiber is rapidly drawn under the action of the tension roller, and the drawing speed is adjusted. The final prepared basalt hollow fiber has an outer diameter of about 10-14 μm and an inner diameter of about 6-8 μm .

In the present invention, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (7)

1. A hollow basalt fiber manufacturing device is characterized in that: the basalt ore processing device comprises crushing equipment, lava equipment and wire drawing equipment, wherein the crushing equipment is used for crushing basalt ore, the lava equipment is used for enabling the basalt ore to be in a molten state, and the wire drawing equipment is used for carrying out wire drawing treatment on the basalt ore in the molten state; the wire drawing equipment comprises a wire drawing kiln and a wire drawing bushing plate, wherein the wire drawing kiln is used for melting the basalt ore, the wire drawing bushing plate comprises a bushing plate body, a filter screen and a needle core assembly, the bushing plate body is provided with a cavity, the top end of the cavity is provided with an opening, the bottom of the cavity is provided with a bottom wall, the filter screen is laid at the opening, a plurality of through holes communicated with the cavity are uniformly formed in the filter screen, a plurality of mounting holes are formed in the bottom wall, and one needle core assembly is mounted in each mounting hole; the needle core assembly comprises a needle core body and a discharge spout, the discharge spout is positioned outside the cavity and arranged on the outer bottom wall of the bushing body, and the discharge spout and the mounting hole are coaxially arranged; the needle core body is arranged on the mounting hole, the lower end of the needle core body sequentially penetrates through the mounting hole and the discharge spout, and an annular gap is formed between the needle core body and the inner wall of the discharge spout; the needle core body comprises a mounting part and an extension part which are connected with each other, the mounting part is mounted in the mounting hole, the extension part extends out of the cavity from the mounting hole, and an annular gap is formed between the extension part and the discharge spout; the mounting portion is provided with a groove communicating with the chamber and the mounting hole.

2. The hollow basalt fiber manufacturing apparatus according to claim 1, characterized in that: and two ends of the bottom of the bushing body are symmetrically provided with bushing electrodes, and the bushing electrodes are provided with connecting holes.

3. The hollow basalt fiber manufacturing apparatus according to claim 2, characterized in that: the wire drawing bushing plate further comprises connecting terminals, the connecting terminals are arranged on the bushing plate body and are located on the side wall of the bushing plate body between the bushing plate electrodes.

4. The hollow basalt fiber manufacturing apparatus according to claim 3, characterized in that: the filter screen is provided with positioning parts which are symmetrically arranged, the surrounding edge at the top of the bushing body is provided with a limiting part, and the positioning parts can be matched and connected with the limiting part.

5. The hollow basalt fiber manufacturing apparatus according to claim 1, characterized in that: the mounting hole includes first mounting hole and the second mounting hole of mutual intercommunication, the aperture of first mounting hole is greater than the aperture of second mounting hole, the installation department install in first mounting hole department, first mounting hole with the cavity with the recess intercommunication, the extension is followed the outside extension of second mounting hole.

6. The hollow basalt fiber manufacturing apparatus according to any one of claims 1 to 5, characterized in that: the cleaning equipment is used for cleaning and removing impurities from the basalt ore, and the drying equipment is used for drying the cleaned basalt ore.

7. A method for manufacturing hollow basalt fiber in the hollow basalt fiber manufacturing apparatus according to claim 1, characterized by comprising: the method comprises the following steps:

1) washing basalt ore, removing impurities attached to the surface, and sending the ore into a blast dryer to remove moisture;

2) primarily crushing basalt ore, adding the crushed basalt ore into a basalt lava furnace, heating to 1500 ℃, cooling and solidifying the liquid basalt melt into an amorphous massive raw material;

3) assembling a wire drawing bushing plate and preparing a wire drawing furnace body, selecting a needle core of a needle core assembly to have the diameter of 1.5mm, selecting the inner diameter of a discharge spout to be 2.5mm, and grinding the tail end of the needle core into a conical shape;

4) then crushing the processed ore by a crusher to obtain basalt mineral powder with the fineness of 2.0-4.0 mm; adding the mixture into a wire drawing kiln, heating to 1200 ℃ and 1400 ℃ to melt the mineral powder into a liquid state; the basalt hollow fiber is formed by drawing and cooling the bushing plate in the air and drawing rapidly under the action of a tension roller, the drawing speed is adjusted, and the finally prepared basalt hollow fiber has the outer diameter of 10-14 mu m and the inner diameter of 6-8 mu m.

Images