KR100935226B1 - Cable sealing board using recycled plastic of waste telegraph pole - Google Patents

Abstract

The present invention is a monolithic type for inspecting cantilevering equipment manufactured by injection molding a recycled raw material in the form of chips or pellets made by collecting, crushing, washing, drying, melting, extruding and cutting waste plastic kava, which are mostly made of low density polyethylene. To provide a removable sealing plate.

Sealing plate according to the present invention is to check the complete sealing function of the communication cable installed on the pole and the unauthorized use on the ground, in particular can be identified at daytime as well as nighttime, and once reinstallation is impossible As the cable tie type fastening structure, the length can be adjusted, which makes it easy to install on various types of communication core cables.

Waste plastic, cover, sealing plate, cantilever, inspection, low density polyethylene, hook, connecting band, photoluminescent film, recycling

Description

Sealing board using recycled plastic of waste telegraph pole

The present invention relates to a sealing plate for cantilevering facility inspection made by recycling waste plastic cover. More specifically, waste plastics generated from waste poles can be efficiently collected, separated and recycled, and the cost of incineration can be reduced, and recycling can reduce the manufacturing cost of the applied products, as well as complete communication cables. It relates to the sealing function and the sealing plate for cantilevering facilities manufactured by recycling the waste plastic cover which can be identified on the ground during the day as well as at night.

Electric poles that supply electricity are being discarded every year due to road changes and securing urban space. Although the waste streams are recycled with proper disposal, the recycling of waste plastic covers is inadequate (the amount of plastic generated in the waste poles is approximately 400 tonnes / year). In particular, waste plastics require soil and air pollution and warming of the atmosphere during landfill or simple incineration.

Since 2002, the government has been burdening companies with waste charges in accordance with the Resource Conservation and Recycling Promotion Act, which is causing difficulties for both production-related companies and companies that must be disposed of after use. The Ministry of Environment also set the goal of recycling plastics in stages. For example, the landfill incineration rate was lowered from 71% in 2003 to 50% in 2006, and the goal for recycling was increased from 29% to 50%. Therefore, related companies are also in a situation to respond quickly. This is also applied to the case of waste plastics generated from the lung system. In particular, the recycling of waste plastics generated by itself is very important in order to enhance the company's environmental image.

In developed countries such as Germany and France, legislation is being strengthened so that plastic waste disposal companies can improve their recyclability. In Japan, dischargers of waste plastics are responsible for separate collection and recycling. Korea also intends to revise related laws related to the duty of recycling of emission companies in accordance with the development of recycling technology.

Therefore, waste plastics are urgently required for recycling because they are attached to waste plastics. Unlike other materials, waste plastics are more important than landfill and incineration, which require hundreds of millions of won as synthetic organic matter. Usually, the method of using recycled materials among the recycling methods of plastics can be applied to the plastic of waste telegraph. In other words, the recycling process is divided into two stages. First, the waste plastics are sorted and separated by material, pulverized, washed and dried to make plastic chips (pellets) as raw materials for recycled plastics. There is a process of molding (extrusion, injection) and assembling with recycled products of the same material mixed with additives. Recycling products include a method for making waste plastics generated from telephone poles into product poles, which may be the best example of resource recycling.

On the other hand, some telecommunications companies have lease agreements with KEPCO to use Jeonju, but some companies in some regions use them without permission. Recently, sealers and sealers have been used to prevent such unauthorized use. This situation is managed.

However, such a seal line is in the form of a thin metal wire, it is difficult to distinguish the installation state in the seal line to check the unauthorized use state by someone on the ground, there is a problem that can not distinguish the break state of the seal.

Even if the seal is broken and the seal is missing, it is difficult to distinguish the situation, so it is difficult to grasp the state only after climbing the telephone pole. Therefore, there is a strong demand for the development of a product for the easy identification system.

Efficient collection, separation, and recycling of waste plastics generated from waste poles can reduce the cost of incineration, and can reduce the manufacturing cost of applied products by recycling them. It is possible to check enough on the ground, it is possible to identify the state of fastening in daytime as well as in the dark night. The purpose of the present invention is to provide a seal for inspecting cantilevering facilities made by recycling waste plastic covers that can be installed.

Sealing plate for cantilevering facility inspection by recycling the waste plastic cover of the present invention is a one-piece or fastening hook that can fasten the recycled waste plastic cover material generated from waste telegraph poles into a rectangular shape in a rectangular shape by injection molding. The part is separated, characterized in that the sealing plate body and the hook portion is configured to be coupled to the fastening coupled.

The integrated seal plate includes a seal plate body including a pair of first hooks and a second hook having a screw groove formed therein, and a screw groove formed on an upper surface thereof, and the first hook or the second hook according to a cable line. It is characterized by consisting of a pair of connecting bands fastened in the form of cable ties to the screw groove of the hook.

A plurality of protrusions having a height of 1 mm at 1 cm intervals is formed at the center of the sealing plate main body, and an adhesive photoluminescent film tape having a photoluminescent effect is attached to the sealing plate main body.

In particular, the photoluminescent film tape is produced in a PVC film and PET film in a state of mixing 80 to 90% by weight of PVC resin and PET resin and 10 to 20% by weight photoluminescent pigment, and adhesive and backing paper on the PVC film and PET film It is attached and made in the form of film tape. In addition, after the photoluminescent film is attached, an eyelet needle (riveted form) is used at the film attachment edge so that the film is not detached.

According to the present invention, the separable sealing plate is a first part, and a connecting band having screw grooves formed on both sides of the central sealing plate main body on both sides thereof is extended, and the second sealing part is coupled to the first part. The hook as a component has a central connection portion, and both ends thereof have screw grooves to which the connection band is fastened, and a flange is formed around the edge thereof.

One side of the detachable sealing plate main body is provided with protrusions having a height of 1 mm at intervals of 1 cm, and a photosensitive film tape is attached to the other side.

Sealing plate for cantilevering facility inspection by recycling the waste plastic cover of the present invention can be produced by injection molding by recycling the waste plastic generated from the waste pole can reduce the processing cost generated when discarded, There is a saving of resources due to reuse.

In addition, the sealing plate according to the present invention is to confirm the complete sealing function of the communication cable installed in the pole and the unauthorized use from the ground, especially can be identified at daytime as well as night, and reinstalled once installed Impossible, as the cable tie-type fastening structure can be adjusted in length, it is easy to install on various types of communication core cable.

In the seal plate for inspection of cantilever facilities manufactured by recycling the waste plastic cover of the present invention, the "sealing plate" is a product for confirming the complete sealing of the cable poles of the cable poles and the sealing thereof. This is to make it possible to check from the ground.

Seal plate for inspection of cantilevering facilities according to the present invention is produced by injection molding the waste plastic Kaba recycled raw material made of low density polyethylene (LDPE) generated in the waste telegraph at a molding temperature of about 180 ℃ or less.

In the present invention, waste plastic carba used as recycled raw materials are mostly low-density polyethylene, and other materials are mixed in about 2 to 3% by weight. Normally, polyethylene sorts crude oil from petroleum, separates the naphtha fraction (about 100-200 ° C outflow), breaks it down and fractionates about 25% ethylene. The ethylene is polymerized to produce polyethylene having the following formula (sometimes with branches). CH ₂ = CH ₂ ? -CH ₂ -CH ₂ -CH ₂ -CH2-... Depending on the polymerization method, various kinds of polyethylene are produced, which can be roughly classified according to the density. Currently, low-density polyethylene (soft polyethylene), which is class A, and high-density polyethylene (hard polyethylene), which is class C, are the main products, and low-density polyethylene is manufactured.

Low density polyethylene is produced by heating at high pressure of 1,000 atm and 200 ° C or higher using a trace amount of air as a catalyst, and thus generally referred to as high pressure polyethylene. Density is about 0.91, there is not enough molecular arrangement because there are branches, and the crystallized part is about 65%, so it becomes soft and stretches well. Tensile strength is slightly small, but impact resistance is large. Easy to process and easy to use You can see them at home because you can make various bottles and ice-making boxes for refrigerators. High-density polyethylene uses a so-called Ziegler-Natta catalyst (a complex salt catalyst consisting of titanium tetrachloride and triethylaluminum) to polymerize ethylene at about 70 캜 and 10 atm. Generally referred to as low pressure polyethylene, it has a high softening point, firmness, and strength, but has a small elongation, impact resistance, and hardness. It has few branches, crystallinity, reaching 85%, density over 0.95. In addition, there are medium pressure polyethylenes produced by the medium pressure polymerization method, and the medium pressure polymerization method includes the Philips method and the standard method. The Philips method is a method of polymerization at 70 atm and 80 ° C using chromium oxide as a carrier as a catalyst, and the standard method is a method of polymerization at 150 ° C or more and 100 atm or less using various catalysts such as molybdenum. There is also a method called using ultra high pressure 3,000 atm, all of which produce high density polyethylene.

Most molecular weight of polyethylene is 50,000 to 100,000. As mentioned above, since it is composed of only CH ₂ , it has excellent electrical insulation and reaches a volume intrinsic resistance of 1019 Ω · cm. Except for the fact that the heat deflection temperature under high-pressure polyethylene is 50 deg. C and the low-pressure method is near 80 deg. C, it is an excellent material for electrical materials. In addition, it is used for various containers, packaging films, fibers, pipes, packings, paints, and the like. Buckets and cups are made by extrusion molding, and containers for industrial chemicals, liquid detergent containers and the like are made by blow molding. Polyethylene burns on its own as it melts. Polyethylene is considered to be high molecular weight paraffins in saturated fatty acid hydrocarbon polymers. Therefore, various properties are similar to paraffin. When ignited, it burns well, melts, and gives off the same odor as paraffin melts and when thrown into water, its properties can be used to distinguish polyethylene products.

As such, polyethylene is divided into high density and low density. Low density is high density but low melting temperature, tensile strength, etc., but elongation bending strength is excellent.

Polyethylene has excellent molding processability and can be applied to many molding methods such as compression molding, injection molding, extrusion molding, suction molding and vacuum molding. Compression molding is rarely used except for molding of ultra high molecular weight polyethylene having poor fluidity at the extreme. In injection molding, a product having a complicated shape can be easily obtained.

However, since the shrinkage rate of polyethylene (especially high density) is higher than that of other materials, special consideration is required for the design of the mold and the selection of the molding conditions. Polyethylene is used in various products using an extruder. Examples are wire coating, pipes, sheets, films, short fibers, yarns, and the like.

These polyethylenes are widely used because they can be made into products of complex shape by various molding methods without being lost flexibility at a very low temperature, being resistant to impacts, being resistant to various chemicals, and various molding methods. For example, in injection molded products, various containers, tableware, toys, daily necessities such as low density to high density polyethylene are used in all products, and high density products that withstand hot water disinfection are used for tableware, toys, buckets, dustpans, motorcycle front covers and fenders, etc. High density products are also used in large molded products.

Recently, high density polyethylene products have been used in large quantities as containers for bottles such as beer and juice. Unable to trace other plastics in polyethylene products is inhaled molded products, which are widely used in unbreakable bottles for preservation and transportation of foodstuffs, cosmetics and chemicals. As a bottle material, low density polyethylene is used a lot, but since high density polyethylene has high rigidity and thickness can be maintained even if the thickness is thin, alternatives to small drums and oil barrels represented by kerosene kegs for home use are used in each field.

The thermal and molding properties of these polyethylenes are as follows. First, the temperature of forming process depends on the location of the machine and is usually used in the range of 50 ℃ ~ 240 ℃. Even at a high temperature of 300 ° C or higher, there is little concern about the occurrence of defects due to thermal decomposition. Second, the molding shrinkage ratio is large, 1 to 4%, and is different in the flow direction of the resin and its orthogonal direction. In addition, the difference of shrinkage rate with each other by mixing a pigment is large. Third, low-density polyethylene, high-density polyethylene, polypropylene, and the like can be mixed with each other and molded. The difference in physical properties due to reuse is small. Table 1 below shows the thermal and molding properties of polyethylene.

TABLE 1

Referring to the process of regenerating the waste plastic carba, made of a mixture of low-density polyethylene and the other 2 ~ 3% by weight of the other materials as the above recycled material as a sealing material for inspecting the cantilevering facility as a regeneration material.

First, the waste plastic cover of waste whole body is collected from the waste dumping house of the whole country, and put into the grinder through the feeding conveyor to grind finely. It is placed in a screw conveyor to wash the finely broken carba, and washed in a washing tank 1-2 times. After the crushed material that has sunk in the washing tank is discharged through the outlet, the collected crushed material is dewatered by using a dehydrator and moved to a pulverized storage tank by a blower. Finally, the pulverized waste plastic cover is stored in the crushing reservoir.

The finely pulverized and washed material from the crushing reservoir is introduced into the regenerator through a regenerator input screw conveyor, melted by heating, and extruded to regenerate. The recycled raw material drawn out like a rice cake is transferred to a cooling tank, cooled, and water is removed. Next, these finely divided materials are finely pulverized into fine particles, and then the raw materials of chips or pellets having a size of 2-3 mm are stored in a storage tank.

The result of the quality test on the molded article produced by using the recycled raw material recycled by the above process is as follows.

In order to find out the properties of recycled plastics, the following tests were conducted.

One. The tensile strength  exam

This test was conducted according to KS M 3006 to determine the tension of recycled plastics.

2. Charpy  Impact strength test

This test is to find the impact strength of recycled plastics. This test is carried out in accordance with KS M 3056.

3. After cold resistance test The tensile strength  exam

It is a test to check the tensile strength after storing recycled plastic products at -30 ℃ for 12 hours.

4. Dissolution test

The dissolution test is a test to check whether there is any change in pH, color, phenol, etc. of water in a recycled plastic product in a 1L water tank for 24 hours.

The test results are shown in Table 2 below.

TABLE 2

* Test Speed: 200mm / min

** Maximum capacity of test equipment: 17J

^: 100 g of the sample was eluted with 1 L of urea water from KS M 3408-2 (2004) for 24 hours and then tested according to KS F 4811 (2005).

Sealing plate of the present invention is produced by injection molding using a recycled raw material (chip) manufactured through such a recycled raw material process, it can be divided into an integral sealing plate and a separate sealing plate.

The integrated sealing plate produced by recycling the waste plastic cover according to the present invention has a pair of first hooks and second marks 11 and 12 having screw grooves 10 formed therein as shown in FIG. It consists of a hook, a sealing plate body designated by 13 and a pair of connecting bands with threaded grooves 15 formed on the upper surface designated by 14, which are connected to the first hook 11 or the first hook. It is used to fasten the two hooks 12 to the cable tie type. Hook portion for fastening the sealing plate is divided into the first hook 11 and the second hook 12, so any one can be selected according to the communication line, there is an advantage that the length can be adjusted when tightening.

According to FIG. 1, a plurality of protrusions 16 having a height of 1 mm at 1 cm intervals is formed at the center of the sealing plate main body 13, which serves to firmly fix the cable communication lines.

According to FIG. 2 of the present invention, the adhesive photoluminescent film tape 17 exhibiting the photoluminescent effect can be adhered to the central portion of the sealing plate main body 13.

The photoluminescent film tape is produced by mixing PVC resin and PET resin 80 to 90% by weight and photoluminescent pigment 10 to 20% by weight, and producing a PVC film and PET film, by attaching an adhesive and backing paper to the PVC film and PET film It is made in the form of film tape, and it has the advantage that it can be fully recognized even in the ground below 5m during the daytime and at night.

Removable sealing plate produced by recycling the waste plastic cover according to the present invention, as shown in Figure 3 as the first part, the screw groove 32 on the upper surface on both sides of the center seal plate main body 31 in the center The connection band 33 formed is extended. Like the integral seal plate, one side of the seal plate main body 31 is provided with a protrusion 34 having a height of 1 mm at 1 cm intervals, and the other side is mentioned above at the central portion of the seal plate main body as shown in FIG. 4. The same photoluminescent film tape 35 is adhered.

The detachable sealing plate produced by recycling the waste plastic cover according to the present invention is a second part to be fastened with the first part as shown in FIG. 5, and the hook 36 part has a central connection part 37 and both sides thereof. At each end, screw grooves 38 are formed. Reference numeral 39 is a flange for maintaining a distance from other parts.

Figure 6 of the accompanying drawings is a photograph of the front part of the integrated seal plate for inspection of cantilever facilities produced by recycling the waste plastic cover according to the present invention, Figure 7 is a photograph of the rear part, Figure 8 is fastening them A picture taken of a state.

In the accompanying drawings, Figure 9 is a photograph of the front part of the first part in the removable seal plate for cantilever facilities inspection produced by recycling the waste plastic cover according to the present invention, Figure 10 is a photograph taken the rear part, 11 is a photograph of a hook which is a second part, and FIG. 12 is a photograph of a state in which the first part and the second part are fastened.

The results of the performance test on the sealing plate specimen of the present invention are shown in Table 3 below.

TABLE 3

1. Weather fastness test (KS K 0704)

This test is to check whether the product is discolored according to the climate when the product is installed outdoors. The result of this test is grade 4-5, and no discoloration occurred.

2. Load part load test

This test is to check if the fastening part of the product breaks when the product is tightened and the force is applied. The result of this test is 138N. This shows a state that is difficult to destroy easily by the force of an adult male.

The present invention can reduce the processing cost generated when the waste by recycling the waste plastic generated in the waste pole, and because of the resource saving effect by recycling the waste plastic in the telephone pole, the industrial availability is very high.

1 is a front view of an integrated seal plate for inspection of cantilevering facilities according to the present invention.

2 is a rear view of FIG. 1.

3 is a front view of a first part of the removable sealing plate for inspection of cantilevering facilities according to the present invention.

4 is a rear view of FIG. 3.

Figure 5 is a perspective view of a second part of the removable sealing plate for inspection of cantilever facilities according to the present invention.

Figure 6 is a photograph of the front portion of the integrated seal plate for inspection cantilever equipment produced by recycling the waste plastic cover according to the present invention.

FIG. 7 is a photograph of the rear part of FIG. 7.

8 is a photograph of a state in which the integrated sealing plate of FIG. 6 is fastened.

Figure 9 is a photograph of the front part of the first part in the removable sealing plate for cantilever equipment inspection produced by recycling the waste plastic cover according to the present invention.

FIG. 10 is a photograph taken at the rear of FIG. 9.

11 is a photograph of a hook, which is a second part, in the detachable sealing plate.

12 is a photograph of a state in which the first component and the second component are fastened in the removable sealing plate.

<Description of the symbols for the main parts of the drawings>

10,15,32,38 ---- thread groove

11 ---- first hook

12 ---- second hook

13 ---- integral seal plate body

14,33 ---- connecting band

16, 34 ---- turning

17,35 ---- photoluminescent film tape

31 ---- Detachable seal plate body

36 ---- hook

37 ---- Connection

39 ---- flange

Claims (7)

delete delete delete delete delete Removable sealing plate made of waste plastic kava recycled raw materials generated from closed electric pole by injection molding. The first part extends the connection band with screw grooves formed on the upper surface on both sides of the central sealing plate body. The second part has a central connection portion, and a screw groove for fastening the connection band is formed at both ends thereof, and a flange is formed around its edge. Sealing board for cantilevering facilities manufactured by recycling waste plastic cover. The method of claim 6, wherein one side of the sealing plate main body is formed with projections of 1mm height at 1cm intervals, the other side is produced by recycling the waste plastic cover, characterized in that the photosensitive film tape is bonded Sealing board for cantilever inspection.

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