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KR-102964375-B1 - SYSTEM FOR LONG-DISTANCE TRANSFER OF FLY ASH

KR102964375B1KR 102964375 B1KR102964375 B1KR 102964375B1KR-102964375-B1

Abstract

A long-distance fly ash transport system is disclosed, comprising: a transport line composed of a plurality of pipes for transporting fly ash, wherein each of the plurality of pipes includes a different curvature according to the terrain of a plurality of transport sections; a blower providing discharge pressure in a direction from the inlet portion of the transport line toward the outlet portion of the transport line; and a control unit controlling at least one of the movement of each of the plurality of pipes and the discharge pressure of the blower based on the actual volume ratio according to the different curvature of each of the plurality of pipes. In addition to this, various embodiments identified through this document are possible.

Inventors

  • 이석제
  • 오민석
  • 박태균

Assignees

  • 주식회사 삼표시멘트
  • 재단법인 영월산업진흥원

Dates

Publication Date
20260513
Application Date
20231213

Claims (10)

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  4. In a non-rotating long-distance transfer system, A transport line composed of multiple pipes for transporting flying ash, wherein each of the multiple pipes includes a different curvature according to the terrain of each transport section; A blower that provides discharge pressure in a direction from the inlet portion of the transfer line toward the outlet portion of the transfer line; and Based on the actual volume ratio according to the different curvature of each of the plurality of pipes, the control unit controls at least one of the movement of each of the plurality of pipes and the discharge pressure of the blower, and The above control unit is, Based on the gas flow rate inside at least one pipe adjacent to the outlet portion of the transfer line among the plurality of pipes, the discharge port cross-sectional area of the pipe corresponding to the outlet portion of the transfer line among the plurality of pipes is set to be adjusted. A non-rotating long-distance transfer system configured to change the flow field corresponding to the gas flow rate based on moving the position of the discharge port itself of the pipe corresponding to the outlet portion of the above transfer line.
  5. In claim 4, It further includes a plurality of alternating current oscillators disposed around each of the plurality of pipes mentioned above, and A non-rotating long-distance transport system comprising a plurality of AC oscillators having different resonant frequencies within a specified frequency band.
  6. In claim 4, A non-rotating long-distance transfer system further comprising a pipeline inspection gauge (PIG) that moves inside the plurality of pipes and transmits information related to the internal state of the plurality of pipes to an external server.
  7. In claim 6, A wire is connected to the above pig, and The above control unit is, A non-rotating long-distance transfer system configured to pull the wire in either the discharge port of the pipe corresponding to the outlet portion of the transfer line or the inlet port of the pipe corresponding to the inlet portion of the transfer line.
  8. In claim 6, A camera is installed on the above pig, and The above control unit is, A non-circuit long-distance transfer system configured to transmit internal images of the plurality of pipes acquired using the above camera to an external server.
  9. In claim 4, The above actual volume ratio represents the ratio of the volume of the above-mentioned non-pipe to the volume corresponding to the internal space of each of the above-mentioned plurality of pipes, and The above control unit is, A non-rotating long-distance transfer system configured to determine the actual volume ratio based on the internal pressure of each of the plurality of pipes.
  10. In claim 4, Each of the above plurality of pipes is, Inner piping corresponding to the transfer path of the above-mentioned non-meeting; It includes an outer pipe surrounding the inner pipe mentioned above, and The above control unit is, A non-rotating long-distance transfer system configured to rotate the inner piping based on the above actual volume ratio.

Description

Fly-ash long-distance transfer system The embodiments disclosed in this document relate to non-rotating long-distance transfer systems. Cement can be a binder mixed with natural minerals such as limestone, clay, silica, and iron ore. Concrete is the result of mixing this cement with water, other aggregates, and admixtures and hardening it. However, natural resources, which are the raw materials for cement, are finite, and energy can be consumed again in extracting and processing them. As an alternative, industrial by-products with the same chemical composition as the raw materials for cement can be used. For example, the chemical composition of blast furnace slag generated at steel mills or coal ash, an industrial waste generated at coal-fired power plants, can be identical to that of limestone and silica sand, which are the raw materials for cement. In other words, if industrial by-products such as blast furnace slag or coal ash are processed into a powder form, slag cement or carbon dioxide-reducing cement can be produced. Coal ash, a circular resource that can replace natural resources that are raw materials for cement, is generated as coal is burned and can be stored in storage tanks (e.g., silos) as fly ash, which is a raw material for cement, after being collected through an electrostatic precipitator. As described above, fly ash can be transported from a coal-fired power plant to a storage tank. During this process, the fly ash in a dry state may pass through a transfer pipe connecting the outlet of the coal-fired power plant to the inlet of the storage tank. Here, the transfer pipe may be positioned on winding terrain such as mountains or rivers. Consequently, the fly ash transported through the transfer pipe may experience clogging due to the shape of the pipe at each section of the transport route. FIG. 1 is a drawing showing the operating environment of a non-rotating long-distance transfer system according to one embodiment. FIG. 2 is a block diagram of a non-rotating long-distance transfer system according to one embodiment. FIG. 3a is a drawing showing the change in the cross-sectional area of the pipe discharge port of a non-rotating long-distance transfer system according to one embodiment. FIG. 3b is a diagram showing the change in the position of the pipe discharge port of a non-rotating long-distance transfer system according to one embodiment. FIG. 4 is a drawing showing an alternating current vibrator placed on a pipe of a non-rotating long-distance transfer system according to one embodiment. FIG. 5 is a drawing showing a pipeline inspection gauge (PIG) placed on the piping of a non-rotating long-distance transfer system according to one embodiment. FIG. 6 is a drawing showing a structure in which the piping of a non-rotating long-distance transfer system is rotated according to one embodiment. FIG. 7 is a drawing showing the actual volume ratio inside the pipe for each transfer section of a non-circulating long-distance transfer system according to one embodiment. FIGS. 8 to 19 are drawings showing the results of flow analysis related to high pressure and long-distance transport using a flying long-distance transport system according to one embodiment. In relation to the description of the drawings, the same reference number may be assigned to identical or corresponding components. Preferred embodiments according to the present invention will be described in detail below with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor may appropriately define the concepts of terms to best describe his invention, they should be interpreted in a meaning and concept consistent with the technical spirit of the present invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application. FIG. 1 is a drawing showing the operating environment of a non-rotating long-distance transfer system according to one embodiment. According to one embodiment, a long-distance fly ash transport system can transport fly ash through a transport line (L) having different curvatures for each of the transport sections corresponding to the terrain, such as mountains and rivers, in terrain with varying elevations. For example, coal ash discharged from a thermal power plant can be transported across mountains and rivers through the transport line (L) to a raw material storage tank in order to recycle it as fly ash, which is a raw material for cement. In various embodiments, the objects transported through t