KR-102962840-B1 - Energy recycling system using rotary cooler

Abstract

The present invention relates to an energy recycling system using a rotary cooler. The energy recycling system using a rotary cooler according to the present invention is capable of increasing energy usage efficiency by recycling thermal energy generated from a rotary cooler, and is characterized by comprising: a rotary cooler that cools coke by spraying water onto coke heat-treated at a high temperature, and in this process generates high-temperature steam; a heat exchanger having a steam path through which steam generated from the rotary cooler travels and a movement path provided adjacent to the steam path through which a fluid travels, so that the fluid traveling along the movement path can acquire thermal energy from the high-temperature steam; a chimney through which cooled steam is introduced after passing through the steam path of the heat exchanger and then discharged to the outside; and a main circulation pipe, one end of which is connected to the chimney and the other end of which is connected to the rotary cooler, so as to supply condensate generated at the bottom of the chimney to the rotary cooler.

Inventors

• 이민녕
• 강동완
• 황호중

Assignees

• 주식회사 포스코엠씨머티리얼즈

Dates

Publication Date

20260511

Application Date

20240307

Claims (4)

1. delete
2. delete
3. By recycling thermal energy generated from a rotary cooler, it enables increased energy usage efficiency. A rotary cooler that cools coke heat-treated at high temperatures by spraying water onto it, and generates high-temperature steam in this process; A heat exchanger having a steam path through which steam generated from the rotary cooler travels, and a fluid path provided at a location adjacent to the steam path through which a fluid travels, so that the fluid traveling along the path can acquire thermal energy of the high-temperature steam; A chimney that allows steam cooled by passing through the steam path of the heat exchanger to flow in and then be discharged to the outside; A main circulation pipe, one end of which is connected to the chimney and the other end of which is connected to the rotary cooler, enabling the condensate generated at the bottom of the chimney to be supplied to the rotary cooler; A condensate tank in which condensate generated through the heat exchange process in the above heat exchanger is stored; A connecting pipe, one end of which is connected to the main circulation pipe and the other end of which is connected to the condensate tank; A sub-circulation pipe, one end of which is connected to the condensate tank and the other end of which is connected to the rotary cooler; and An energy recycling system using a rotary cooler, characterized by including a valve provided between the main circulation pipe and the connecting pipe to selectively move the condensate to either of the two elements.
4. In paragraph 3, A temperature sensor installed on the main circulation pipe path between the above valve and the chimney to sense the condensate temperature; and An energy recycling system using a rotary cooler, characterized by further including a control device that selectively opens and closes the valve based on temperature data measured from the temperature sensor.

Description

Energy recycling system using rotary cooler The present invention relates to an energy recycling system using a rotary cooler, and more specifically, to an energy recycling system using a rotary cooler with an improved structure that can increase energy usage efficiency by recovering steam generated in the rotary cooler through a heat exchanger and recycling it through condensate treatment. Effectively utilizing the thermal energy of steam generated in coke production plants is a critical task in terms of energy conservation and environmental protection. Currently, most steam is simply discharged and lost, leading to the waste of thermal energy and the problem of having to supply condensate separately. FIG. 1 is a drawing for explaining the configuration and fluid flow of an energy recycling system using a rotary cooler according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating the control flow between a control device, a temperature sensor, and a valve employed in an embodiment of the present invention. In order to clarify the understanding of the present invention in the following description, descriptions of known technologies regarding the features of the present invention will be omitted. The following embodiments are detailed descriptions to aid in understanding the present invention and are not intended to limit the scope of the rights of the present invention. Accordingly, equivalent inventions that perform the same function as the present invention will also fall within the scope of the rights of the present invention. Furthermore, in the following description, identical identification symbols denote identical configurations, and unnecessary redundant descriptions and descriptions of known technologies are omitted. Additionally, descriptions of each embodiment of the present invention below that overlap with the description of the technology forming the background of the invention are also omitted. Hereinafter, an energy recycling system using a rotary cooler according to an embodiment of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a diagram illustrating the configuration and fluid flow of an energy recycling system using a rotary cooler according to an embodiment of the present invention, and FIG. 2 is a block diagram illustrating the control flow between a control device, a temperature sensor, and a valve employed in an embodiment of the present invention. As illustrated in FIG. 1, an energy recycling system using a rotary cooler according to an embodiment of the present invention is capable of increasing energy usage efficiency by recycling thermal energy generated from a rotary cooler (1), and comprises a rotary cooler (1), a heat exchanger (2), a chimney (3), and a main circulation pipe (4). The rotary cooler (1) above serves to cool the coke by spraying water onto the coke that has been heat-treated at a high temperature, and causes high-temperature steam to be generated during this cooling process. The heat exchanger (2) is intended to heat a fluid to be exchanged by utilizing steam generated from the rotary cooler (1). A steam path through which the steam generated from the rotary cooler (1) travels and a movement path through which the fluid travels, which is provided at a location adjacent to the steam path, are provided so that the fluid traveling along the movement path can obtain thermal energy from the high-temperature steam. Here, the heat exchanger (2) and the rotary cooler (1) are connected in a fluid-moving manner so that the steam from the rotary cooler (1) can flow into the steam path. The chimney (3) is designed to allow cooled steam, which has passed through the steam path of the heat exchanger (2), to flow in and then be discharged to the outside. It is installed to be exposed to the atmosphere, so that the steam in a vapor state is converted into condensate in a liquid state. The condensate generated in this way is temporarily collected at the bottom of the chimney (3). One side of the main circulation pipe (4) is connected to the chimney (3) and the other side is connected to the rotary cooler (1), so that condensate generated at the bottom of the chimney (3) can be supplied to the rotary cooler (1). An energy recycling system using a rotary cooler according to an embodiment of the present invention having such a configuration has the advantage of being able to contribute to environmental protection through energy saving and resource reuse, as well as reduce product costs. This is achieved by organically combining a rotary cooler (1) that must be constructed as an essential part of the coke manufacturing process, a chimney (3) that discharges steam generated from various facilities to the outside, a heat exchanger (2) for energy exchange between steam generated in the rotary cooler (1) and a fluid to be heat-exchanged, and a main circulation pipe (4) for introducing condensate generate