CN110590124A

CN110590124A - Device and method for producing basalt continuous fibers

Info

Publication number: CN110590124A
Application number: CN201910945498.1A
Authority: CN
Inventors: 姜德彬; 罗大伟
Original assignee: Liaoning Jiufeng Wuyan Technology Co Ltd
Current assignee: Liaoning Jiufeng Wuyan Technology Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2019-12-20

Abstract

The application discloses an apparatus and a method for producing basalt continuous filament. The device comprises a main body with an inner cavity and a material distributing mechanism arranged in the main body; the feed mechanism includes: the upper end and the lower end of the cylinder body are communicated, the outer side of the upper end of the cylinder body is provided with a fixing part which can be fixedly connected with the main body, and the lower end of the cylinder body is provided with a discharge hole; the material distribution disc is positioned below the lower end of the barrel body, and a gap is formed between the material distribution disc and the lower end of the barrel body; the vertical projection of the discharge hole is positioned in the vertical projection of the material distribution disc; the material distribution disc can be fixedly connected with the cylinder body; the periphery of the material distribution disc is downwards inclined. The invention has the technical effects that the basalt powder or granules can be uniformly distributed with high efficiency, so that the raw material melting efficiency is improved, the corrosion of the furnace body refractory material caused by splashing generated by feeding is reduced, and the service life of the furnace body is prolonged.

Description

Device and method for producing basalt continuous fibers

Technical Field

The application belongs to the technical field of industrial production equipment, and particularly relates to a device for producing basalt continuous fibers.

Background

The wu-rock fiber material is a high-performance green industrial material which is produced by using specific basalt formed by volcanic eruption as a raw material to produce continuous fibers, rock wool, fine scales and other products, has the advantages of good comprehensive performance, high cost performance and the like, does not produce toxic substances in the normal production and processing process, and does not discharge waste gas, waste water and waste residues. The basalt fiber product mainly comprises pure basalt wool and basalt continuous fiber. The basalt continuous fiber is golden brown in color, has a series of performance characteristics of high temperature resistance, corrosion resistance, wear resistance, radiation resistance and the like, has the performance between high-strength S glass fiber and alkali-free E glass fiber, and can completely replace glass fiber and even expensive carbon fiber and aramid fiber in certain application fields. The production process of the basalt continuous fiber comprises feeding, melting and drawing. The melting process of basalt ore is a thermochemical reaction process, so gas escapes, and because the basalt melt is very viscous, some bubbles cannot penetrate through the surface of the melt and only remain in the melt. Drawing of the fibers is made difficult by the presence of some unmelted particles, crystallized fragments, and bubbles that fall through the holes of the bushing. After the basalt ore is added to the melting furnace, the ore particles start to sink into the melt (the ore density is large), and since the melt is opaque to heat radiation and the internal temperature of the melt is lower than the surface temperature thereof, the melting process of the basalt ore is performed at a temperature lower than the surface temperature of the melt, and thus it is very difficult to melt the basalt ore at the deep part of the melt. Because basalt has high melting point, poor heat permeability, high viscosity and easy crystallization, a bushing is easy to block, wire drawing interruption is caused, and crystallization can influence the mechanical properties (such as rigidity, strength and the like) of fibers, whether raw materials can be uniformly and continuously added into a kiln is very important for the melting efficiency of the whole kiln and the homogenization of the melt temperature. Therefore, the development of the high-efficiency homogenizing feeding device is a very important key technology in the drawing production process of the basalt continuous fibers.

The charging hole of the traditional kiln for producing basalt continuous fibers is arranged on the left and right of the middle position of the side wall of the kiln, and raw materials continuously fall into the furnace body through the furnace wall opening through the charging device, so that charging is completed. The feeding mode has the following disadvantages: the side wall feeding mode easily causes the raw materials to be accumulated on the side close to the furnace wall, and because the depth of the basalt melt in the furnace body is shallow, the added raw materials are not melted in time, so that accumulation is generated. The raw materials of the charging opening fall into the furnace at a fixed position, so that the temperature of the melt at the position is lower, and meanwhile, the heat permeability of the basalt melt is poorer, so that the surrounding heat cannot be timely supplemented, and the melting efficiency at the position is lower. Because the feeding position is fixed, the raw materials are abraded to the furnace wall for a long time, so that the furnace wall is abraded seriously, the erosion phenomenon of the fused mass to the furnace wall is accelerated, the erosion speed of the furnace wall at the feeding side is accelerated, the heat preservation effect of the furnace body is influenced, and the whole service life of the furnace body is also influenced.

Accordingly, there is a need for an improved apparatus for producing basalt continuous filament.

Disclosure of Invention

An object of the present invention is to provide a new technical solution of an apparatus for producing basalt continuous filament.

According to one aspect of the present invention, there is provided an apparatus for producing basalt continuous filament, including a main body having an inner cavity and a dividing mechanism provided in the main body; the feed mechanism includes:

the upper end and the lower end of the cylinder body are communicated, the outer side of the upper end of the cylinder body is provided with a fixing part which can be fixedly connected with the main body, and the lower end of the cylinder body is provided with a discharge hole;

the material distribution disc is positioned below the lower end of the barrel body, and a gap is formed between the material distribution disc and the lower end of the barrel body; the vertical projection of the discharge hole is positioned in the vertical projection of the material distribution disc; the material distribution disc can be fixedly connected with the cylinder body; the periphery of the material distribution disc is downwards inclined.

Optionally, the fixing part is a flange, the main body is provided with a shell, the fixing part is fixedly connected with the shell, and the lower end of the cylinder body extends into the inner cavity of the main body.

Optionally, an upward connecting column is arranged in the middle of the distribution disc, and the connecting column is coaxial with the barrel.

Optionally, the upper end of the barrel is provided with a supporting structure matched with the connecting column, the supporting structure is provided with a connecting part arranged at the axis position of the barrel, and the upper end of the connecting column is connected to the connecting part.

Optionally, the upper end of the connecting column has an external thread, and the connecting portion has an internal thread that mates with the connecting column.

Optionally, the support structure comprises a plurality of support rods; the plurality of support rods are uniformly arranged around the connecting part, one end of each support rod is connected to the connecting part, and the other end of each support rod is connected to the barrel; the included angle between the adjacent supporting rods is 60 degrees, 90 degrees, 120 degrees or 180 degrees.

Optionally, the periphery of the distribution plate is inclined downwards by 30-60 degrees.

Optionally, the material separating mechanism is made of silicon carbide, tungsten carbide or molybdenum carbide.

Optionally, the minimum distance between the distribution disc and the lower end of the cylinder is not less than 5 mm.

Optionally, the maximum distance between the distribution disc and the lower end of the barrel is not more than 50 mm.

According to another aspect of the present invention, there is also provided a method for producing basalt continuous filament, comprising the steps of:

adding a basalt raw material into a kiln;

heating by heat source radiation, and melting the basalt raw material in the kiln into a basalt melt;

the basalt raw materials are added into the material distribution mechanism of the device, so that the basalt raw materials are uniformly scattered.

The invention has the technical effects that the basalt powder or granules can be uniformly distributed with high efficiency, so that the raw material melting efficiency is improved, the corrosion of the furnace body refractory material caused by splashing generated by feeding is reduced, and the service life of the furnace body is prolonged.

Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural diagram of some embodiments of the present application;

FIG. 2 is a schematic top view of a feed mechanism according to some embodiments of the present disclosure;

FIG. 3 is a schematic view of the structure of the feed mechanism barrel in some embodiments of the present application;

FIG. 4 is a schematic view of a partial structure of a material distribution mechanism according to some embodiments of the present disclosure

Fig. 5 is a schematic cross-sectional view of a feed mechanism in some embodiments of the present application.

In the figure: 1, a charging hopper; 2, a main body; 3, a material distributing mechanism; 31 cylinder, 32 distributing tray, 33 connecting column, 34 connecting part, 35 supporting rod and 4 basalt raw material; 5 basalt continuous fiber; 6 the liquid level of the basalt melt in the main body.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

The invention provides a device for producing basalt continuous filament, which comprises a main body 2 with an inner cavity and a material distributing mechanism 3 arranged in the main body 2, wherein the device is provided with reference to figures 1 to 5.

The inner cavity of the main body 2 is used for containing basalt melt. The hopper 1 is located directly above the main body 2. Basalt raw materials 4 are added into the main body 2 from the hopper 1 positioned outside the main body 2 and are heated and melted into basalt melt, and the melted basalt melt can form a basalt melt liquid level 6 in the main body. The basalt continuous fiber is produced from the basalt melt through a process, and the specific process is the prior art and is not described herein again.

The material distribution mechanism 3 comprises a cylinder 31 and a material distribution disc 32. The material distribution mechanism 3 is arranged in the inner cavity of the main body 1, is positioned below the charging hopper 1 and connected with the charging hopper 1, and is positioned above the liquid level 6 of the basalt melt in the main body.

The upper end and the lower end of the cylinder 31 are communicated, and the upper end of the cylinder 31 is communicated with the discharge hole of the charging hopper 1 and is used for conducting the flow direction of the basalt raw material 4. The cylindrical body 31 has a fixing portion on the outer side of the upper end thereof, which is capable of being fixedly connected to the main body 2. The fixing portion is typically a flange, and the main body 2 has a housing, and the fixing portion is fixedly connected with the housing so that the lower end of the cylinder 31 can extend into the inner cavity of the main body 2. The lower end of the barrel 31 is provided with a discharge hole, and the basalt raw material 4 enters the main body 2 from the discharge hole.

The distributing tray 32 is positioned below the lower end of the barrel 31, and the vertical projection of the discharge hole is positioned in the vertical projection of the distributing tray 32, so that all the basalt raw materials 4 falling from the discharge hole are firstly contacted with the distributing tray 32; a gap is formed between the distributing tray 32 and the lower end of the barrel 31, the periphery of the distributing tray 32 is inclined downwards, so that the basalt raw materials 4 can fall into a lower solution along the inclined edge of the distributing tray 32, and the basalt raw materials 4 falling from the charging hopper 1 are dispersedly added into the basalt melt; meanwhile, the basalt raw material 4 is prevented from directly colliding with the melt after entering from the feed hopper 1, and the collision distance between the raw material and the melt is reduced, so that the impact on the melt is reduced, the splashing phenomenon of the melt is greatly reduced, and the erosion of the melt on a refractory brick above a hearth is avoided.

The distributing tray 32 is fixedly connected with the barrel 31, so that the distributing mechanism 3 forms an integral structure, and the distributing mechanism 3 is conveniently detached and overhauled and maintained relative to the integral body of the main body 2 by virtue of the fixed part and the main body 2.

According to the invention, the material distributing mechanism 3 is arranged right above the melting area of the furnace body, when the furnace is transformed, the material distributing mechanism 3 only needs to open a hole on a refractory brick above the furnace body, the material distributing mechanism 3 can be matched with an all-electric furnace body, an all-gas furnace body and a gas-electricity combined furnace body, and the installation and the replacement are relatively simple and easy to operate.

In the whole raw material adding process, the raw materials are not in direct contact with refractory bricks of the furnace body, so that the abrasion of the furnace body is avoided, and the whole service life of the furnace body is prolonged. The raw materials enter the furnace body and then contact the material distribution disc 32 below the furnace body at the first time, so that direct collision with the melt is avoided, and the collision distance between the raw materials and the melt is reduced, thereby reducing the impact on the melt, greatly reducing the splashing phenomenon of the melt, and avoiding the erosion of the melt on refractory bricks above the hearth. After passing through the material distribution mechanism 3, the raw materials are uniformly scattered to the melt seeds below along the material distribution disc 32 below, and meanwhile, the material distribution disc 32 with the slope can give a certain force to the raw materials by combining with the gravity, so that the raw materials are cut into the melt along a parabolic track, and the raw materials are prevented from vertically falling into the melt. Therefore, the moving distance of the raw material above the melt is increased, and the raw material can enter the melt after receiving more heat. Thus, the temperature field between the feedstock and the melt is greatly reduced, thereby reducing the impact of the cold feedstock on the melt. After the raw materials pass through the material distribution mechanism 32, the distribution area of the raw materials in the melt is increased through the distribution effect of the material distribution disc 32 below, compared with a mode of vertically entering the melt, after the distribution area of the raw materials is increased, the raw materials are simultaneously cut into the melt at a certain angle, the descending distance after entering the melt is also increased compared with the vertical descending process, the raw materials can be fully contacted with the melt, the melting speed of the raw materials is increased, the phenomenon that the local temperature is lower due to the accumulation of the raw materials is avoided, and the uniformity of the temperature of the melt is more facilitated.

Optionally, in some embodiments, the barrel 31 is cylindrical and the distribution tray 32 is circular. In some other embodiments, the shape may be other shapes such as square, polygon, etc., which is not limited by the present disclosure.

Alternatively, in some embodiments, referring to fig. 1 to 5, an upward connecting column 33 is provided at a middle position of the distribution tray 32, and the connecting column 33 is coaxial with the barrel 31, so that the basalt raw material 4 falling from the barrel 31 can be uniformly distributed on the distribution tray 32.

Further, in some embodiments, referring to fig. 1 to 5, the upper end of the cylinder 31 is provided with a support structure matched with the connecting column 33, the support structure is provided with a connecting part 34 arranged at the axial position of the cylinder 31, and the upper end of the connecting column 33 is connected to the connecting part 34.

Further, in some embodiments, referring to fig. 1 to 5, the upper end of the connecting column 33 has an external thread, and the connecting portion 34 has an internal thread matching with the connecting column 33, so that the connecting column 33 can be screwed with the connecting portion 34 to realize the fixed connection between the dispensing disc 32 and the barrel 31; on the other hand, the size of the gap between the material distribution disc 32 and the lower end of the cylinder 31 can be controlled through threaded connection, so that the distance can be adjusted according to the particle size of the raw material, and the flowability of the raw material is ensured; on the other hand, can adjust the high position of minute charging tray 32 through the screw to can change the position of the falling point of basalt raw materials 4, adjust when overhauing and maintaining, the single problem of piling up that causes of the single falling point of avoiding that can step forward. Of course, in some embodiments, the connection column 33 and the connection portion 34 may be fixedly connected together in a non-detachable manner by welding or the like, which is not limited by the present invention.

Further, in some embodiments, referring to fig. 1-5, the support structure includes a plurality of support rods 35; the plurality of support rods 35 are uniformly arranged around the connecting part 34, one end of each support rod is connected to the connecting part 34, and the other end of each support rod is connected to the barrel 31; the angle between adjacent support bars 35 is 120. In some other embodiments, the angle may also be 60 °, 90 °, or 180 °, and the symmetric distribution is not limited by the present invention.

Optionally, in some embodiments, referring to fig. 1 to 5, the distribution plate 32 is inclined downwards by 30 to 60 degrees at the periphery thereof to ensure that the basalt raw material 4 can fall smoothly, so as to avoid the occurrence of material blockage.

Optionally, in some embodiments, referring to fig. 1 to 5, the material distribution mechanism 3 is made of silicon carbide, tungsten carbide, molybdenum carbide, and the like, so as to ensure high temperature resistance (700 ℃ -1100 ℃) and wear resistance, and improve service life.

Optionally, in some embodiments, the minimum distance between the distribution plate 32 and the lower end of the barrel 31 is not less than 5mm, so that the basalt raw material 4 can smoothly flow out.

Optionally, in some embodiments, the maximum distance between the distribution tray 32 and the lower end of the barrel 31 is not more than 50mm, so that the basalt raw material 4 can smoothly flow out without occupying too much height space in the main body 2.

The invention also provides a method for producing basalt continuous fiber, which comprises the following steps:

adding a basalt raw material into a kiln;

As used in the specification and claims, certain terms are used to refer to particular components or methods. As one skilled in the art will appreciate, different regions may refer to a component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not in name. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The device for producing the basalt continuous filament is characterized by comprising a main body with an inner cavity and a material distributing mechanism arranged in the main body; the feed mechanism includes:

2. The apparatus for producing basalt continuous filament according to claim 1, wherein the fixing part is a flange, the main body has a housing, the fixing part is fixedly connected with the housing, and a lower end of the barrel extends into the inner cavity of the main body.

3. The apparatus for producing basalt continuous filament according to claim 1, wherein an upward connecting column is provided at a middle position of the distribution plate, and the connecting column is coaxial with the barrel.

4. The apparatus for producing basalt continuous filament according to claim 3, wherein the upper end of the barrel is provided with a support structure to be fitted with the connection column, the support structure having a connection part provided at an axial position of the barrel, the upper end of the connection column being connected to the connection part.

5. The apparatus for producing basalt continuous filament according to claim 4, wherein the connection column has an external thread at an upper end thereof, and the connection part has an internal thread to be fitted with the connection column.

6. The apparatus for producing basalt continuous filament according to claim 4, wherein the support structure comprises a plurality of support rods; the plurality of support rods are uniformly arranged around the connecting part, one end of each support rod is connected to the connecting part, and the other end of each support rod is connected to the barrel; the included angle between the adjacent supporting rods is 60 degrees, 90 degrees, 120 degrees or 180 degrees.

7. The apparatus for producing basalt continuous filament according to claim 1, wherein the circumference of the distribution plate is inclined downward by 30 ° to 60 °.

8. The apparatus for producing basalt continuous filament according to claim 1, wherein a minimum distance between the minute disc and the lower end of the barrel is not less than 5 mm.

9. The apparatus for producing basalt continuous filament according to claim 1, wherein a maximum distance between the minute disc and the lower end of the barrel is not more than 50 mm.

10. A method for producing basalt continuous filament, comprising the steps of:

adding a basalt raw material into a kiln;

the basalt raw material is added by using the distributing mechanism of the device of any one of claims 1 to 9, so that the basalt raw material is uniformly scattered.