KR101968211B1 - Manufacturing method of plastic product for manhole comprising sulfur polymer cement and manhole product produced by the process - Google Patents

Abstract

The present invention relates to a manufacturing method for a plastic article for a manhole comprising sulfur polymer cement, and a plastic article for a manhole produced thereby. According to the present invention, the manufacturing method comprises a raw material and supplementary material preparation process (100), a melted material supply process (200), and an article forming process (300). According to an embodiment of the present invention, when forming a melted material for preparing the plastic article for a manhole, sulfur polymer cement in the form of powder may be additionally mixed and melted together with raw material and supplementary material, thereby ensuring that the plastic article for a manhole being produced has uniform properties.

Description

MANUFACTURING METHOD OF PLASTIC PRODUCT FOR MANHOLE COMPRISING SULFUR POLYMER CEMENT AND MANHOLE PRODUCT PRODUCED BY THE PROCESS}

The present invention relates to a manufacturing method of a manhole plastic product, a manhole including a technology for homogeneously combining sulfur in the material for molding the manhole plastic product, and a technology for treating toxic sulfur gas generated during the molding process. The present invention relates to a method for producing a plastic product for manhole containing sulfur sulfur polymer cement, and a plastic product for manhole manufactured by the method.

The manhole consists of various products such as a lid, inverter, sewage receiver, socket, trap, and elbow to smoothly connect the inlet and outlet pipes as well as the manhole body. In this case, the manhole plastic product is manufactured using a plastic material such as PVC, PE (polyethylene) or PP (polypropylene) resin, and the manhole plastic product has a large amount of various perishable microorganisms and pests due to the nature of the use environment. It is placed in an inhabiting environment, which affects the corrosion and breakage of the plastic products for the manhole and is a problem in terms of hygiene and environment of the manhole.

On the other hand, in order to solve similar problems caused by various perishable microorganisms, prior art related to the finish coating agent composition of the manhole to prevent concrete corrosion due to chemical erosion of the manhole (Registration No. 10-1173014, 2012.08.10. ), But it is not suitable in terms of durability and workability to apply to plastic products because it is a finishing coating composition for concrete manholes, and can not be expected to improve significantly in terms of reducing the habitat of various perishable microorganisms and pests.

Therefore, there is a need for technical means for manufacturing plastic products for manholes, including sulfur, which is excellent in formability and ensures durability, and also quickly collects and removes toxic sulfur gas, which is essential in the manufacturing process. Detailed technical development is required.

Patent Registration No. 10-1173014 (2012.08.10.)

The technical problem to be achieved by the present invention is to protect the products for the manhole from microorganisms and pests affecting the corrosion and breakage of the product for the manhole and to prevent the microorganisms inhabiting the inside of the manhole product It is to provide a manufacturing method.

In addition, the physical properties of the plastic material is to be uniformly secured throughout the product as well as to provide technical means for producing a plastic product excellent in formability and durable even if sulfur contained in the plastic material.

In addition, in the process of blending plastic raw materials and subsidiary materials in order to provide a simple technical means that does not use external heating energy in realizing the blending temperature for smooth blending.

In addition, in preparing a molten material for molding a plastic product, while providing a smooth formability to provide a technical means for appropriately limiting the melting temperature to prevent modification of raw materials, subsidiary materials, sulfur components and the like.

In addition, it is intended to provide an effective and beneficial technical means that can quickly capture and remove the toxic sulfur gas generated in the manufacturing process.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

In order to achieve the above technical problem, the method for producing a plastic product for sulfur polymer cement-containing manhole according to the present invention, while manufacturing the plastic product for the manhole using the raw material plastic and the material, raw material and material preparation step (100) and In the method for manufacturing a plastic product for sulfur polymer cement-containing manhole, including the molten material supply step 200, the product molding step 300, raw materials and subsidiary materials prepared and supplied by the raw material and subsidiary material preparation step 100 Sulfur polymer cement input process of supplying the sulfur polymer cement powder to the melt extrusion apparatus used in the molten material supply step 200 by preparing a sulfur polymer powder by pulverizing the sulfur polymer to be melted and extruded together ( 220); wherein, in the raw material and subsidiary material preparation step 100, the subsidiary material is 100 parts by weight The master batch is blended with the raw materials in a composition ratio of 5 to 8 parts by weight, wherein the master batch is mixed with 100 parts by weight of raw materials, 1 to 8 parts by weight of a dispersant, and 0.1 to 1 parts by weight of antioxidant, and then molded into pellets. The sulfur polymer cement powder supplied by the sulfur polymer cement input process 220 is included in an amount of 0.2 to 0.6 parts by weight based on 100 parts by weight of the raw material, and the molten material supply process 200 includes the sulfur polymer cement powder as a raw material and an ingredient. Forming and extruding a molten material containing sulfur by mixing and melting together, and the process of melting the raw materials, members, sulfur polymer cement powder to form the molten material in the molten material supply process 200 is carried out between 180 to 210 ℃ And sulfur gas generated by including and melting the sulfur polymer cement powder in the molten material supply process 400. Is removed via the gas sulfur removal step 250, the sulfur degassing process 250 is configured to include a process for producing gypsum by the desulfurization process using a calcium oxide.

delete

delete

delete

Further, the plastic product for sulfur polymer-containing manholes according to the present invention is manufactured by the method for producing the plastic product for sulfur-polymer cement-containing manholes.

According to an embodiment of the present invention, in forming a molten material for manufacturing a plastic product for manholes made of PVC, PE, or PP material, a manhole manufactured by further mixing and melting a powdered sulfur polymer cement together with raw materials and materials. It has the effect of uniformly securing the physical properties of the plastic product for the product, and thus has a structure in which sulfur of the manufactured manhole plastic product is continuously discharged, thereby preventing the product from microorganisms and pests that affect the corrosion and breakage of the product. In addition to the protection and has the effect to prevent the inhabitants such as microorganisms and pests inhabit the inside of the manhole equipped with the product.

In addition, by mixing the raw materials and components of the PVC, PE, PP resin with a predetermined compounding ratio, the mixing temperature, the mixing time, etc., it has the effect of improving the mixing performance of the materials, and the raw materials of PVC, PE, PP resin and In order to melt the component material, sulfur polymer cement powder is added and melted together in the process of being injected into the melt extrusion apparatus to provide a molten material having excellent homogeneity and good moldability.

In addition, by including a sulfur polymer cement added in the form of powder at the beginning of the process for melting the raw material and the material of the PVC or PE, PP resin in a predetermined composition ratio has an effect of ensuring excellent moldability and durability in the manufacturing process.

In addition, in the process of providing sulfur polymer cement, the desulfurization process using quicklime quickly removes toxic sulfur gas, thereby securing the safety of workers and preventing environmental pollution, and also generated during the desulfurization process. Gypsum can be used commercially to reduce the manufacturing cost of plastic products, etc., and it has an economically beneficial side effect.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

Figure 1. Overall conceptual diagram of the manufacturing method of sulfur-containing plastic product for manhole according to the present invention
Figure 2. Detailed structure of the raw material and subsidiary material preparation process in the manufacturing method of sulfur-containing plastic product for manhole according to the present invention
3. Detailed structure of the molten material supply process in the manufacturing method of sulfur-containing plastic product for the manhole according to the present invention
Figure 4 is a detailed structure of a single part molding process in the manufacturing method of sulfur-containing plastic product for manhole according to the present invention

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member in between. "Includes the case. In addition, when a part is said to "include" a certain component, this means that unless otherwise stated, it may further include other components rather than excluding the other components.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described to be easily carried out by those of ordinary skill in the art.

First, referring to the drawings, FIG. 1 is a schematic diagram of a method for manufacturing a plastic product for sulfur polymer cement-containing manhole according to the present invention, showing the configuration of each process and its coupling relationship. Figure 2 shows the detailed structure of the raw material and subsidiary material preparation process 100 in the method for producing a plastic product for sulfur polymer cement containing manhole according to the invention, Figure 3 is a plastic product for sulfur polymer cement containing manhole according to the present invention 3 shows a detailed structure of the molten material supply process 200 in the manufacturing method of FIG. 3 (a) shows a coupling relationship between the molten material supply process 200, a sulfur polymer cement input process, and a sulfur gas removal process. 3 (b) shows the detailed structure of the sulfur polymer cement input process, and FIG. 3 (c) shows the detailed structure of the sulfur gas removal process. Figure 4 shows the detailed structure of the product molding process in the method for producing a plastic product for sulfur polymer cement-containing manhole according to the present invention.

The method for producing a plastic product for manhole containing sulfur polymer cement of the present invention relates to a method for manufacturing a plastic product for manhole using a plastic material such as PVC, PE or PP resin, as shown in Figure 1, raw material and subsidiary material preparation It comprises a process 100, a melt material supply process 200, a product molding process 300 and the like.

In the present invention, the plastic product for sulfur-containing cement manhole means at least any one of manhole components, such as a manhole body, an inverter, a rain gutter, a flat plate, a lid, a sewage collector, a connector, a socket, a trap, and an elbow. At this time, at least one portion or the surface of the plastic product for the manhole is formed to have a material containing sulfur in order to solve the above-described problems. In addition, the product may be formed for general use using the components of the subsidiary materials or may be formed for impact resistance, if necessary, the details of which will be described below.

Here, the raw material means PVC (polyvinyl chloride), PE (polyethylene, polyethylene) or PP (polypropylene, polypropylene) resin, and the like material means a material other than the raw material, such as dispersants, antioxidants, pigments, etc. Material may be included. Such subsidiary materials are used in the form of a masterbatch because they are difficult to obtain homogeneous blending performance due to different physical properties and the like in order to directly mix with the raw materials. In other words, the master batch is molded in the form of pellets after mixing a predetermined raw material and the subsidiary material in advance.

In addition, sulfur used in the method for producing a plastic product for sulfur polymer cement-containing manhole of the present invention is blended with raw materials and subsidiary materials in the form of sulfur polymer cement and used for molding the product. Sulfur, also commonly referred to as sulfur, is highly unstable in terms of storage and handling properties, and is inconvenient to use with other material components in the manufacturing process. Therefore, it is preferable to use sulfur polymer cement stabilized by forming a resin.

Hereinafter, each detailed manufacturing process will be described for the case of manufacturing the sulfur polymer cement-containing manhole plastic product using the PP resin as a raw material of the plastic product, but the manufacturing method for forming the sulfur-containing structure will be described. This is not intended to limit the available raw materials, and the following description can be easily modified and applied to the selection to contain sulfur using other plastic raw materials.

Raw Material and Substance Preparation Process (100)

In the method for manufacturing a plastic product for sulfur polymer cement-containing manholes according to the present invention, raw material and subsidiary material preparation step 100 is a process for preparing raw materials and subsidiary materials that provide basic physical properties of the plastic product.

First, the detailed configuration of the raw material and subsidiary material preparation process 100 will be described first, the material receiving step 111 of wearing raw materials and subsidiary materials in the form of particles or powders, and the mixing step 112 of blending the raw materials and subsidiary materials, It may be configured to include a compounding material storage step 113 for moving and storing the compounded material.

Raw material and subsidiary material wearing step 111 of wearing the raw materials and subsidiary materials is to prepare raw materials and subsidiary materials in consideration of the properties and uses of the plastic product, as described above, the subsidiary materials are prepared and used in the form of a master batch do. A master batch is prepared in a ratio of 5 to 8 parts by weight based on 100 parts by weight of raw materials. Here, the master batch is mixed with 100 parts by weight of the raw material, 1 to 8 parts by weight of the dispersant and 0.1 to 1 parts by weight of the antioxidant to form a pellet.

In the blending step 112 of blending the raw materials and the subsidiary materials, the subsidiary materials in the form of a master batch are mixed in a blending cylinder to form a blending material.

The storage step 113 of storing the compounding material is a process of transferring and storing the compounding material in a separate space for use in a subsequent process. As such, by mixing and using the raw materials and subsidiary materials in advance, it is possible to smoothly secure the blending quality, and may have advantages in terms of the time difference between the preparation time and the point of use of the blending materials. In addition, it is also possible to omit the storing step 113 and to provide it to the subsequent process as needed.

Melt Supply Process (200)

In the manufacturing method of the plastic product for sulfur polymer cement-containing manhole of the present invention, the molten material supplying process 200 is a process of forming a molten material to be used in a subsequent process using the compounding material prepared in the raw material and subsidiary material preparation process 100. And technical means for forming a sulfur containing structure in a plastic product.

First, a compounding material transfer step 211 for transferring the compounding material prepared in the raw material and subsidiary material preparation process 100 to the melt extrusion apparatus is performed, and an input step of injecting the conveyed compounding material into the hopper of the melt extrusion apparatus ( 212) is performed subsequently.

In this case, in order to form a sulfur-containing structure of the plastic product, a process of adding the sulfur polymer cement powder by the sulfur polymer cement input process 220 is performed in the input hopper input step 212 of the blending material. That is, in order to make the plastic product have a sulfur-containing structure, the sulfur polymer cement is added to the input hopper in a powder form to form a material for forming a molten material.

On the other hand, the sulfur polymer cement input step 220 is a process for preparing a powder form by grinding the sulfur polymer cement, wearing step 221 wearing a sulfur polymer cement, and a grinding step of grinding the sulfur polymer cement (222) ), The feed screw may be configured to include a feed step (223) for transferring the powder of the sulfur polymer cement to the blender. Here, in the step 223 of introducing the sulfur polymer cement into the blender as a transfer screw, the powder of the sulfur polymer cement is added to the molten material in the process of introducing the compounding material into the hopper into the hopper. To be formed. Meanwhile, a step of storing sulfur polymer cement powder is added between the step 222 of grinding the sulfur polymer cement as necessary, and the feeding step 223 of transferring the powder of the sulfur polymer cement to the blender using a transfer screw. By including it, it can have advantages in terms of convenience of quality control and process parallax control up to the point of use of the sulfur polymer cement powder in the process of forming the sulfur polymer cement powder.

In the step 223 of introducing the sulfur polymer cement powder into the blender as the transfer screw, the sulfur polymer cement powder in powder form is preferably added within a range of 1 part by weight based on 100 parts by weight of the raw material, and 0.2 to 0.6 parts by weight. It is more preferable to add within the range. If the sulfur polymer cement powder exceeds 1 part by weight, the solidification phenomenon occurs, and the moldability and durability of the plastic product are lowered. If the sulfur polymer cement powder is added in a small amount, the sulfur content of the plastic product may be properly exhibited. Can't.

Next, the melting step 213 is a process of melting the compounding material and sulfur polymer cement powder injected into the melt extrusion apparatus to form a molten material, the melting temperature is preferably managed between 180 to 210 ℃. If the temperature range is low, the moldability of the molten material is insufficient, and if the temperature range is exceeded, it is not preferable in view of energy efficiency and material damage.

Meanwhile, the sulfur gas removing process 250 may be performed together while performing the melting step 213. The sulfur gas removing step 250 includes a collecting step 251 for collecting the exhaust gas containing sulfur gas by a collecting device, and a desulfurization step for removing sulfur gas using quicklime before releasing the collected exhaust gas. And 252. Since the quicklime used in the desulfurization step 252 is plastered by adsorbing sulfur gas, it is necessary to periodically replace gypsum with quicklime to maintain the desulfurization function, and the plastering process of quicklime in the desulfurization step 252. Since the gypsum can be used commercially, the manufacturing method of the present invention has the effect of removing the harmful sulfur gas generated in the workplace and producing commercial gypsum.

Next, a melt material extrusion cutting step 214 for extruding the melt formed in the melting step 213 and cutting it to a predetermined amount (or length) for use in a subsequent step is performed, and the cut amount of the melt is cut. Roller operation step 215 is performed on the ash.

On the other hand, after performing the melt extrusion step 124 may be further provided with a metering step to check the cut amount and adjust the amount as needed again.

Product Molding Process (300)

In the method of manufacturing a plastic product for sulfur polymer cement-containing manholes according to the present invention, the product molding process 200 is a process of molding a plastic product using the predetermined amount of the molten material prepared in the molten material supply process 100.

First, in the molten material supply process 100, a moving step 311 for moving the predetermined amount of molten material through a roller work to a press mold is performed to prepare for subsequent steps for molding a plastic product.

In this case, in order to secure the workability and molding quality for the molten material filling the press mold, the press mold is preferably managed in a predetermined temperature range, and the heating structure and / or cooling structure for temperature management of such a press mold It is preferable to further provide a.

Next, a press machine operation step 312 is performed in which the melt is pressurized with a press to apply a predetermined physical pressure to form the detailed shape of the plastic product in the mold. In order to stabilize the shape of the plastic product formed by pressing the press machine in-mold cooling step 313 for cooling the mold for a predetermined time while maintaining the pressurized state of the press machine is performed, the molding by the in-mold cooling step 313 In order to separate the plastic product from the mold, the press is released and then the press release and product separation step 314 for separating the product is performed.

Next, a product thought step 315 of performing a process of trimming the plastic molded product separated from the mold for its final shape is performed, and a product inspection step 316 for inspecting the appearance and properties of the plastic product thus manufactured is performed. The rough finishes the plastic product.

In addition to the above description of the present invention is for illustrative purposes, those skilled in the art to which the present invention pertains can be easily modified to other specific forms without changing the technical spirit or essential features of the present invention. There will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed or divided manner, and similarly, components described as distributed or divided may be implemented in a combined form within the understanding of those skilled in the art. have. In addition, each step of the method or the process may be carried out alone or in a plurality of times performed in combination with at least one other step.

The scope of the present invention is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention.

100: raw material and subsidiary material preparation process
111: receiving raw materials and subsidiary materials 112: mixing raw materials and subsidiary materials
113: raw materials and subsidiary materials storage step
200: molten material supply process
211: conveying the compound material step 212: feeding step of the input hopper
213: melting step 214: melting material cutting step
215: Roller work step
220: sulfur polymer cement input process
221: sulfur polymer cement receiving step 222: sulfur polymer cement grinding step
223: Sulfur polymer cement powder input step
250: sulfur gas removal process
251: exhaust gas collection step 252: desulfurization step
300: product forming process
311: moving the press mold 312: operating the press machine
313: cooling in mold 314: release of press and separation of product
315: Product mapping stage 315: Product inspection stage

Claims (5)

Manhole plastic products are manufactured by using raw materials such as plastic and subsidiary materials, including sulfur polymer cement containing manhole plastic products, including raw materials and raw materials preparation process (100), molten material supply process (200), and product forming process (300). In the method for producing
The sulfur polymer is pulverized to prepare a sulfur polymer cement powder so as to be melted and extruded together with the raw material and the subsidiary material prepared and supplied by the raw material and the subsidiary material preparation step 100 to be used in the molten material supply process 200. And a sulfur polymer cement input process 220 for supplying the sulfur polymer cement powder to a melt extrusion apparatus.
In the raw material and subsidiary material preparation step 100, the subsidiary material is blended with the raw material in a composition ratio of 5 to 8 parts by weight of the masterbatch based on 100 parts by weight of the raw material,
The masterbatch is mixed with 100 parts by weight of raw materials, 1 to 8 parts by weight of a dispersant, and 0.1 to 1 part by weight of antioxidant, and then molded into pellets.
The sulfur polymer cement powder supplied by the sulfur polymer cement input process 220 is included in an amount of 0.2 to 0.6 parts by weight based on 100 parts by weight of the raw material.
The molten material supply process 200 forms the molten material containing sulfur by extruding by mixing the sulfur polymer cement powder with the raw material and the subsidiary material, and extruding,
In the molten material supply process 200 to melt the raw materials, members, sulfur polymer cement powder to form a molten material is carried out between 180 to 210 ℃,
Sulfur gas generated by melting and containing the sulfur polymer cement powder in the molten material supply process 200 is removed through the sulfur gas removal process 250, the sulfur gas removal process 250 is a desulfurization process using quicklime A process for producing a plastic product for sulfur polymer cement-containing manholes comprising the step of producing gypsum.
delete delete delete A sulfur-polymer cement-containing manhole plastic product manufactured by the method for producing a sulfur-polymer cement-containing manhole plastic product according to claim 1.

Images