KR102432288B1 - Heat-resistant sorting net, apparatus and method for manufacturing the same - Google Patents

Abstract

The present invention provides a heat-resistant sorting net having a heat-resistant layer so that the lifespan of a high-temperature object to be sorted can be prevented from decreasing even when the net comes into contact with the high-temperature object during a sorting process, and a device and a method for manufacturing the same. To this end, the present invention provides a heat-resistant sorting net, and a device and a method for manufacturing a heat-resistant sorting net, wherein the heat-resistant sorting net includes: a sorting net main body having a sorting hole; and a reinforcing member embedded in the sorting net main body, and the sorting net main body includes: a heat-resistant layer in contact with the object to be sorted; and a urethane layer integrally manufactured with the heat-resistant layer and disposed below the heat-resistant layer.

Description

Heat-resistant sorting net, apparatus and method for manufacturing the same

The present invention relates to a heat-resistant sorting net, an apparatus for manufacturing a heat-resistant sorting net, and a manufacturing method, and more particularly, a heat-resistant sorting net and a heat-resistant sorting net manufacturing apparatus provided with a heat-resistant layer formed of heat-resistant particles to have excellent abrasion resistance and heat resistance and to a manufacturing method.

The sorting net used in the aggregate sorting device is a device for classifying aggregates of various sizes, for example, crushed stone by particle size.

The screening net can be provided in various ways depending on the shape and material. In the past, metal materials such as wire mesh were mainly used, but recently, urethane or rubber materials are used.

However, in the process of sorting a high-temperature material such as coke, the urethane sorting net has a problem in that it is easily deformed or worn due to lack of heat resistance. Therefore, when the urethane screening net is exposed to a high-temperature material, frequent replacement or maintenance is required due to a change in physical properties, etc., so there is a problem in that repair and maintenance costs increase.

Republic of Korea Patent Publication No. 10-2010-0027343 (published on: March 11, 2010)

The present invention is to solve the problems of the prior art as described above, and an object of the present invention is to provide a heat-resistant sorting network capable of sorting even high-temperature materials.

Another object of the present invention is to provide an apparatus and method for manufacturing a heat-resistant sorting net that can easily produce a heat-resistant sorting net.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above problems, the present invention provides a heat-resistant sorting network, a heat-resistant sorting net manufacturing apparatus and a manufacturing method, having a heat-resistant layer so that the lifespan is not reduced even when it comes into contact with a high-temperature object in the process of sorting a high-temperature object. do. The apparatus for manufacturing a heat-resistant sorting net according to the present invention includes a bottom surface, a first sidewall protruding from the bottom surface in the width direction of the heat-resistant sorting net, and facing the first sidewall, the floor at a predetermined interval A first mold having a second sidewall protruding from the surface; and one end in contact with the first sidewall and the other end in contact with the second sidewall, along the longitudinal direction of the heat-resistant sorting net. A second mold coupled to the upper side; and having a shape corresponding to the second mold, one end in contact with the first sidewall and the other end at a predetermined distance from the second mold in a state facing the second mold a third mold coupled to the upper side of the bottom surface in a state of being in contact with the second sidewall; and a fourth mold disposed at least one fourth mold, wherein the fourth mold includes a base plate and a plurality of protrusions protruding at regular intervals in a downward direction of the base plate, and the lower end surface of the protrusions is the It is disposed in close contact with the upper surface of the bottom surface, and the protrusion may be a region for forming the sorting hole of the heat-resistant sorting net in a state in which the mold space is filled with a mixture for forming the main body of the heat-resistant sorting net.

In addition, a first side protrusion for forming a first side coupling portion of the heat-resistant sorting net is formed protruding from an inner surface of the second mold opposite to the mold space, and the third mold facing the mold space A second side protrusion for forming a second side coupling portion of the heat-resistant sorting net may be formed on the inner surface of the .

A method for manufacturing a heat-resistant sorting net for manufacturing a heat-resistant sorting net using the heat-resistant sorting net manufacturing apparatus according to an embodiment of the present invention, wherein the second mold is coupled to the upper surface of the bottom surface of the first mold A mold coupling step; and a third mold coupling step of coupling the third mold to an upper surface of the bottom surface of the first mold; A fourth mold arrangement step of disposing a mold, but disposing a plurality of fourth molds at regular intervals along the longitudinal direction of the heat-resistant sorting net; including, the strength of the sorting net body in the space between the fourth molds a reinforcing member arrangement step of disposing a reinforcing member for reinforcing; and a mixture injection step of injecting a mixture for forming the main body of the heat-resistant sorting net into the mold space. In addition, the mixture includes a urethane stock solution, a curing agent, and heat-resistant particles having a larger specific gravity than the urethane stock solution, and a curing step of curing the urethane stock solution while allowing the heat-resistant particles to be laminated on the bottom surface may be further included. .

The method may further include a heating step of heating the first mold, the second mold, the third mold, and the fourth mold before injecting the mixture into the mold space.

A heat-resistant sorting net manufactured according to the method for manufacturing a heat-resistant sorting net according to an embodiment of the present invention, comprising: the sorting network body having the sorting hole; and the reinforcing member built into the screening network body, wherein the screening network body includes a heat-resistant layer in contact with the object to be screened, and a urethane layer formed integrally with the heat-resistant layer and disposed under the heat-resistant layer can

In addition, the heat-resistant layer may include urethane, graphite, and steel fiber.

According to the heat-resistant sorting net and its manufacturing apparatus and manufacturing method according to the present invention, there are the following effects.

First, since the surface of the contact surface in contact with the object to be selected is formed of a heat-resistant layer containing heat-resistant particles, it can also be used to sort high-temperature objects.

Second, since the heat-resistant layer and the urethane layer are integrally formed, the process is simplified and the manufacturing cost is reduced.

Third, since the heat-resistant layer and the urethane layer are integrally formed, the durability is good and cleaning and maintenance are easy.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a heat-resistant sorting net according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 .
3 is a perspective view of an apparatus for manufacturing a heat-resistant sorting net according to an embodiment of the present invention.
4 is an exemplary view showing a method of combining the first mold, the second mold, and the third mold of the heat-resistant sorting network manufacturing apparatus of FIG. 3 .
5 is a perspective view of a fourth mold of the heat-resistant sorting net manufacturing apparatus of FIG. 3 .
6 is a cross-sectional view taken along the cutting line BB of FIG. 3 .
7 is a cross-sectional view taken along the cutting line BB in a state in which the mixture is injected into the heat-resistant screening net manufacturing apparatus of FIG. 3 .
8 is a view showing a method for manufacturing a heat-resistant sorting net according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only this embodiment allows the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

The size or shape of the components shown in the drawings attached to this specification may be exaggerated for clarity and convenience of explanation. It should be noted that the same configuration in each drawing is sometimes illustrated with the same reference numerals. In addition, detailed descriptions of functions and configurations of known technologies that may unnecessarily obscure the gist of the present invention may be omitted.

The terminology used herein is used to describe specific embodiments, not to limit the present invention. As used herein, the singular form may include the plural form unless the context clearly dictates otherwise. In addition, when a part "includes" a certain component throughout the present specification, it means that other components may be further included unless otherwise stated.

When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that there is no other element in the middle. Other expressions for describing the relationship between components should be interpreted similarly.

As used herein, terms such as upper, lower or upper side, lower side, etc. are used to distinguish relative positions of components. For example, for convenience, when naming the upper part of the drawing as the upper part and the lower part of the drawing as the lower part, the upper part may be called the lower part and the lower part may be called the upper part without departing from the scope of the present invention. .

Terms including ordinal numbers such as ~1~, ~2~, etc. described in this specification may be used to describe various components, but the components are not limited by the terms. The above terms are only used to distinguish each component from each other, and are not limited to the order of manufacture, and the names may not match in the detailed description of the invention and the claims.

All terms including technical or scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, the present invention will be described with reference to the drawings in order to explain a heat-resistant sorting net and a manufacturing apparatus and manufacturing method thereof according to an embodiment of the present invention.

1 is a perspective view of a heat-resistant sorting net according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the cutting line AA of FIG. 1, and FIG. 3 is an apparatus for manufacturing a heat-resistant sorting net according to an embodiment of the present invention. is a perspective view of, FIG. 4 is an exemplary view showing a method of combining the first mold, the second mold, and the third mold of the heat-resistant sorting network manufacturing apparatus of FIG. 3, and FIG. 5 is the heat-resistant sorting network manufacturing apparatus of FIG. A perspective view of the fourth mold, FIG. 6 is a cross-sectional view taken along the cutting line BB of FIG. 3, and FIG. 7 is a cross-sectional view taken along the cutting line BB in a state in which the mixture is injected into the heat-resistant sorting net manufacturing apparatus of FIG. and FIG. 8 is a view showing a method for manufacturing a heat-resistant sorting net according to an embodiment of the present invention.

1 and 2 , the heat-resistant sorting net 100 according to an embodiment of the present invention may include a sorting net body 110 , a reinforcing member 130 , and a sorting hole 120 .

A plurality of reinforcing members 130 may be built-in along the longitudinal direction L1 in the inside of the sorting net body 110 to reinforce the rigidity of the heat-resistant sorting net.

The selection hole 120 serves to pass an object having a size smaller than the diameter of the selection hole 120 among selection objects and to filter a larger object. A plurality of sorting holes 120 are formed in the sorting network body 110 . The sorting hole 120 is formed in a shape whose diameter increases from the upper part to the lower part, so that it is possible to prevent an object from being caught in the sorting hole 120 .

A first side coupling part 140 is formed on one side of the screening network main body 110, and a second side coupling part (not shown) is formed on the other side. The first side coupling part 140 and the second side coupling part (not shown) are combined with the side coupling part of another neighboring heat-resistant screening network 100 when a plurality of heat-resistant screening networks 100 are used.

The screening net body 110 may include a heat-resistant layer 111 and a urethane layer 113 integrally formed under the heat-resistant layer 111 . The heat-resistant layer 111 prevents a change in physical properties and damage when in contact with an object to be selected at a high temperature of 80° C. or higher. The heat-resistant layer 111 is composed of a mixture including urethane, graphite, and steel fiber.

Graphite has a low coefficient of thermal expansion and good thermal conductivity, so it has good resistance to sudden temperature changes. In addition, the steel fiber has the characteristics of being light, strong, and abrasion-resistant.

Therefore, heat resistance and abrasion resistance of the heat-resistant layer 111 is greatly improved compared to the urethane layer, so that it can be used for a long time even when it comes into contact with a high-temperature object to be sorted.

In addition, since the heat-resistant layer 111 and the urethane layer 113 are integrally formed, durability of the contact portion in contact with the object to be selected is increased, and there is no need for separate separation, so cleaning and maintenance can be easy.

3 to 5 , the heat-resistant sorting net manufacturing apparatus 200 according to an embodiment of the present invention includes a first mold 210 , a second mold 220 , a third mold 230 , and a fourth mold. (240). Here, in FIG. 5 , the lower surface 243 of the fourth mold 240 is shown from the top in order to clearly show the shape of the fourth mold 240 .

The first mold 210 includes a bottom surface 213 on which the fourth mold 240 and the reinforcing material 130 are disposed, and a first sidewall 211 protruding from the bottom surface 213 in the width direction W2. and a second sidewall 212 facing the first sidewall 211 and protruding from the bottom surface at a predetermined interval. Here, the longitudinal direction (L2) and the width direction (W2) mean the same direction as the longitudinal direction (L1) and the width direction (W1) of the heat-resistant sorting net.

One end of the second mold 220 is in contact with the first sidewall 211 and the other end is in contact with the second sidewall 212 , and is mounted on the upper side of the bottom surface 213 in the longitudinal direction. Preferably, it may be fastened with a plurality of bolts.

The third mold 230 has a shape corresponding to that of the second mold 220 , and one end of the first sidewall 211 is spaced apart from the second mold 220 in a state facing the second mold 220 . and the other end is in contact with the second sidewall 212 , and may be mounted on the upper side of the bottom surface 213 .

When the second mold 220 and the third mold 230 are mounted on the first mold 210 , a mold space S may be formed therein.

In addition, on the inner surface of the second mold 220 , a first side protrusion 221 for forming the first side coupling portion 140 of the heat-resistant sorting net 100 may be formed to face the mold space. On the inner surface of the third mold 230 , a second side protrusion 232 for forming a second side coupling portion (not shown) of the heat-resistant sorting net 100 may be formed to face the mold space.

The fourth mold 240 includes a plurality of base plates 242 and a plurality of protrusions formed while having a predetermined interval in the lower direction of the base plate 242 to form the sorting holes 120 of the heat-resistant sorting net 100 . It may include a protrusion 241 .

One or more fourth molds 240 are disposed in the mold space (S), and when a plurality of molds are disposed, they are disposed at regular intervals. The lower surface 243 of the protrusion 241 is in close contact with the upper surface of the bottom surface 213 so that the selection hole 120 is formed in a state in which the mixture for forming the heat-resistant screening network 100 is filled in the mold space (S). can be placed. That is, the protrusion 241 corresponds to a region for forming the selection hole 120 .

After the fourth mold 240 is disposed in the mold space S, the reinforcing member 130 may be disposed between the fourth molds 240 . When a plurality of fourth molds 240 are disposed, reinforcing members 240 may also be disposed in empty spaces on the left and right sides of the fourth molds 240 disposed at the extreme ends of both sides. Since the mixture is injected in the state in which the reinforcing member 130 is disposed, the reinforcing member 130 is embedded in the screening network body 110 to increase the rigidity of the heat-resistant screening network 100 .

6 to 8 , a method for manufacturing a heat-resistant sorting net according to an embodiment of the present invention is as follows. First, the first mold 210 arrangement step (S100) of arranging the first mold 210 on a flat surface is performed.

Next, the second mold 220 and the third mold 230 combining the second mold 220 and the third mold 230 to the arranged first mold 210 are combined ( S200 ) is performed. A first side protrusion 221 for forming the first side coupling portion 140 of the heat-resistant sorting net 100 may be protruded from the inner surface of the second mold 220 , and the third mold 230 . A second side protrusion 231 for forming a second side coupling portion (not shown) of the heat-resistant sorting network 100 may be formed to protrude.

Next, after the second mold 220 and the third mold 230 coupling step (S200), the fourth mold 240 is arranged in the mold space (S) formed therein, the fourth mold 240 is arranged step (S400) ) is performed. The fourth mold 240 may be disposed such that the lower surface 243 is in close contact with the upper surface of the bottom surface 213 of the first mold 210 .

Then, the reinforcing member arrangement step (S400) of disposing the reinforcing member 130 in the space between the fourth mold 240 is performed.

After the reinforcing member arrangement step (S400), a heating step (S500) of heating the heat-resistant sorting net manufacturing apparatus 200 including the reinforcing member 130 so that the mixture can be easily injected when the mixture is injected is performed. Specifically, the mixture can be easily injected into the mold space because the temperature rises as the heat-resistant sorting net manufacturing apparatus 200 is heated, and accordingly, the fluidity is improved.

Next, the mixture injection step 600 of injecting the mixture into the mold space (S) is performed. The mixture may be composed of a urethane stock solution, a curing agent, and heat-resistant particles. The heat-resistant particles may include graphite and steel fibers. The heat-resistant particles may be composed of particles having a larger specific gravity than the urethane stock solution.

After the injection of the mixture is completed, a curing step (S700) of curing the mixture is performed. In the curing step, as the injected mixture is cured, heat-resistant particles having a large specific gravity are stacked on the bottom surface 213 to form the heat-resistant layer 111 . In the curing step (S700), heat-resistant particles are easily stacked on the lower side, and the heat-resistant sorting net manufacturing apparatus 200 can be heated for uniform curing of the mixture.

Next, a mold separation step (S800) of separating the first mold 210, the second mold 220, the third mold 230, and the fourth mold 240 is performed. Finally, through the mold separation step (S800), the manufacturing of the heat-resistant sorting net 100 may be completed. Of course, when the heat-resistant sorting net 100 is used, the heat-resistant sorting net 100 is disposed so that the heat-resistant layer 111 is in contact with the sorting object.

As described above, preferred embodiments of the present invention have been shown and described with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the present invention is not limited to the specific embodiments described above, Various modifications are possible by those of ordinary skill in the art to which the invention pertains, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: heat-resistant sorting net
110: screening network body
111: heat-resistant layer
112: urethane layer
120: sorting ball
130: reinforcing member
200: heat-resistant sorting net manufacturing device
210: first mold
220: second mold
230: third mold
240: fourth mold

Claims (7)

A second sidewall having a bottom surface, a first sidewall protruding from the bottom surface in the width direction of the heat-resistant sorting net, and a second sidewall facing the first sidewall and protruding from the bottom surface at a predetermined interval 1 mold;
a second mold having one end in contact with the first sidewall and the other end in contact with the second sidewall, coupled to the upper side of the bottom surface along the longitudinal direction of the heat-resistant sorting net;
It has a shape corresponding to the second mold, and is in a state in which one end is in contact with the first sidewall and the other end is in contact with the second sidewall at a predetermined distance from the second mold in a state facing the second mold a third mold coupled to the upper side of the bottom surface;
and a fourth mold disposed in a mold space with an open upper side formed by the first mold, the second mold, and the third mold;
The fourth mold includes a base plate and a plurality of protrusions protruding at regular intervals in a downward direction of the base plate,
The lower surface of the protrusion is disposed in close contact with the upper surface of the bottom surface, and the protrusion forms a sorting hole of the heat-resistant sorting net in a state in which the mixture for forming the body of the heat-resistant sorting net is filled in the mold space. Heat-resistant sorting net manufacturing apparatus, characterized in that the area. The method of claim 1,
A first side protrusion for forming a first side coupling portion of the heat-resistant sorting net is protruded from an inner surface of the second mold opposite to the mold space, and an inner surface of the third mold opposite to the mold space is formed. A heat-resistant sorting net manufacturing apparatus, characterized in that a second side protrusion for forming a second side coupling part of the heat-resistant sorting net is formed on the side surface. A method for manufacturing a heat-resistant sorting net for manufacturing a heat-resistant sorting net using the heat-resistant sorting net manufacturing apparatus according to claim 1, comprising:
a second mold coupling step of coupling the second mold to the upper surface of the bottom surface of the first mold;
a third mold coupling step of coupling the third mold to the upper surface of the bottom surface of the first mold;
but disposing the fourth mold so that the lower surface of the protrusion is seated on the upper surface of the bottom surface of the first mold,
a fourth mold placing step of disposing a plurality of fourth molds at regular intervals along the longitudinal direction of the heat-resistant sorting net;
a reinforcing member arrangement step of disposing a reinforcing member for reinforcing the strength of the screening net body in the space between the fourth molds;
and a mixture injection step of injecting a mixture for forming the main body of the heat-resistant sorting net into the mold space. 4. The method of claim 3,
The mixture includes a urethane stock solution, a curing agent, and heat-resistant particles having a larger specific gravity than the urethane stock solution, and a curing step of curing the urethane stock solution while allowing the heat-resistant particles to be laminated on the bottom surface. A method for manufacturing a heat-resistant sorting net. 4. The method of claim 3,
The method of claim 1, further comprising a heating step of heating the first mold, the second mold, the third mold, and the fourth mold before injecting the mixture into the mold space. A heat-resistant sorting net manufactured according to the method for manufacturing a heat-resistant sorting net according to claim 3,
the sorting network body having the sorting hole; and
Including the reinforcing member embedded in the selection network body,
The screening net body comprises a heat-resistant layer in contact with the object to be sorted, and a urethane layer formed integrally with the heat-resistant layer and disposed under the heat-resistant layer. 7. The method of claim 6,
The heat-resistant layer is a heat-resistant sorting net comprising urethane, graphite and steel fiber.

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