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KR-20260063124-A - WASHING APPARATUS OF SOLID-LIQUID SEPARATOR FOR FOOD WASTE AND WASHING CONTROL METHOD THEREOF

KR20260063124AKR 20260063124 AKR20260063124 AKR 20260063124AKR-20260063124-A

Abstract

The present invention discloses a cleaning device for a solid-liquid separator for food waste and a cleaning control method thereof. The cleaning device according to the present invention comprises a screen having a plurality of perforations formed in a wall and separating water from fluid food waste introduced into the interior through centrifugal separation and discharging it through the plurality of perforations, and a screw feeder rotatably disposed inside the screen to move the food waste from which water has been separated upward and discharge it. The cleaning device for a solid-liquid separator for food waste comprises at least one first cleaning unit that sprays cleaning water onto the screen, at least one second cleaning unit that sprays a detergent solution onto the screen, and a control unit that, when a basic cleaning mode for the solid-liquid separator is selected, stops the power supply and inflow pump of the solid-liquid separator and checks whether the locking valve of the solid-liquid separator is open, then controls the cleaning valve of the first cleaning unit to turn ON to spray cleaning water, and simultaneously controls the solid-liquid separator to rotate to clean the screen.

Inventors

  • 주윤상

Assignees

  • 주윤상

Dates

Publication Date
20260507
Application Date
20241030

Claims (12)

  1. A cleaning device for a solid-liquid separator for food waste, comprising: a screen having a plurality of through holes formed in a wall and separating water from fluid food waste introduced into the interior by centrifugal separation and discharging it through the plurality of through holes; and a screw feeder rotatably disposed inside the screen and moving the food waste from which water has been separated upward and discharging it. At least one first cleaning unit that sprays cleaning water onto the screen above; At least one second washing unit that sprays detergent liquid onto the screen above; and A cleaning device for a solid-liquid separator for food waste, characterized by including a control unit that, when a basic cleaning mode for the solid-liquid separator is selected, stops the power and inlet pump of the solid-liquid separator, checks whether the locking valve of the solid-liquid separator is open, controls the cleaning valve of the first cleaning unit to turn ON to spray cleaning water, and simultaneously controls the solid-liquid separator to rotate to clean the screen.
  2. In paragraph 1, The above control unit is, A cleaning device for a solid-liquid separator for food waste, characterized by completing cleaning when the operation time of the solid-liquid separator has elapsed for a certain period, stopping the operation of the solid-liquid separator and the cleaning pump, turning off the cleaning valve, and counting and recording the number of cleaning cycles.
  3. In paragraph 2, The above control unit is, If the number of washing cycles exceeds a preset number, or if the separation operation time of the solid-liquid separator exceeds a preset time, A cleaning device for a solid-liquid separator for food waste, characterized by stopping the power and inlet pump of the solid-liquid separator and checking whether the locking valve of the solid-liquid separator is open, then turning on the detergent valve of the second cleaning unit to spray detergent liquid, and simultaneously rotating the solid-liquid separator to additionally clean the screen.
  4. In paragraph 1, It further includes a water overflow sensor that detects the water level accumulating within the screen above, and The above control unit is, If, during the above basic washing mode, standing of washing water is detected by the water overflow sensor or if the number of times it is detected exceeds a certain number during a single operation, A cleaning device for a solid-liquid separator for food waste, characterized by stopping the power and inlet pump of the solid-liquid separator and checking whether the locking valve of the solid-liquid separator is open, then turning on the detergent valve of the second cleaning unit to spray detergent liquid, and simultaneously rotating the solid-liquid separator to additionally clean the screen.
  5. In paragraph 1, The above control unit is, When the operating period of the above solid-liquid separator has elapsed the first cycle (P1), A cleaning device for a solid-liquid separator for food waste, characterized by stopping the power and inlet pump of the solid-liquid separator and checking whether the locking valve of the solid-liquid separator is closed so that water cannot escape, then turning on the cleaning valve of the first cleaning unit to spray cleaning water and controlling it to fill the inside of the screen of the solid-liquid separator with cleaning water, and after a preset soaking time (t2) has elapsed, driving the solid-liquid separator in reverse rotation to soak and clean the screen.
  6. In paragraph 5, It further includes a water overflow sensor that detects the water level accumulating within the screen; The above control unit is, A cleaning device for a solid-liquid separator for food waste, characterized by turning on the cleaning valve to spray cleaning water, and then turning off the cleaning valve when the water overflow sensor detects that the cleaning water has reached a certain level, and temporarily stopping the operation of the cleaning device for a preset soaking time (t2) to soak the inside of the solid-liquid separator in the cleaning water.
  7. In paragraph 1 or 5, The above control unit is, If the operating period of the above solid-liquid separator has exceeded the second cycle (P2, P2 > P1), A cleaning device for a solid-liquid separator for food waste, characterized by stopping the power and inlet pump of the solid-liquid separator and checking whether the locking valve of the solid-liquid separator is closed so that water cannot escape, turning on the detergent valve of at least one second cleaning unit to spray detergent liquid and fill the inside of the screen of the solid-liquid separator, and controlling the solid-liquid separator to reverse-rotate after a preset soaking time has elapsed to additionally soak and clean the screen.
  8. A cleaning control method for a solid-liquid separator for food waste comprising: a screen having a plurality of perforations formed in a wall and separating water from fluid food waste introduced into the interior through centrifugal separation and discharging it through the plurality of perforations; and a screw feeder rotatably disposed inside the screen and moving the food waste from which water has been separated upward and discharging it. When a basic cleaning mode for the solid-liquid separator is selected, the cleaning device stops the power and inlet pump of the solid-liquid separator and checks whether the locking valve of the solid-liquid separator is open; The above cleaning device controls the cleaning valve of at least one first cleaning unit to turn ON so that cleaning water is sprayed onto the screen; The above cleaning device controls the rotational drive of the solid-liquid separator to clean the screen; The above cleaning device completes cleaning when the operation time of the solid-liquid separator elapses for a certain period, stops the operation of the solid-liquid separator and the cleaning pump, and then turns off the cleaning valve; and The above cleaning device includes the step of counting and recording the number of cleaning cycles. A cleaning control method for a solid-liquid separator for food waste, characterized by including
  9. In paragraph 8, The washing device monitors whether the number of washes has exceeded a preset number or whether the separation operation time of the solid-liquid separator has exceeded a preset time; If, as a result of monitoring, the number of washes reaches a preset number or the separation operation time of the solid-liquid separator has exceeded a preset time, the washing device stops the power and inlet pump of the solid-liquid separator and checks whether the locking valve of the solid-liquid separator is open; The above washing device controls the detergent valve of at least one second washing unit to turn ON so that a detergent liquid is sprayed onto the screen; and The above cleaning device rotates the solid-liquid separator to additionally clean the screen. A cleaning control method for a solid-liquid separator for food waste, characterized by further including
  10. In paragraph 8, The above cleaning device includes the step of monitoring whether water accumulates within the screen through a water overflow sensor; If, as a result of monitoring, the accumulation of washing water is detected by the water overflow sensor during the basic washing mode, or if the number of times such detection occurs exceeds a certain number during a single operation, the washing device stops the power and inlet pump of the solid-liquid separator and checks whether the locking valve of the solid-liquid separator is open; The above washing device controls the detergent valve of at least one second washing unit to turn ON so that a detergent liquid is sprayed onto the screen; and The above cleaning device rotates the solid-liquid separator to additionally clean the screen. A cleaning control method for a solid-liquid separator for food waste, characterized by further including
  11. In paragraph 8, The above cleaning device monitors whether the operating period of the above solid-liquid separator has elapsed a first cycle (P1); When the monitoring result indicates that the first cycle (P1) has elapsed, the cleaning device stops the power and inlet pump of the solid-liquid separator and checks whether the shut-off valve of the solid-liquid separator is closed to prevent water from escaping; The above cleaning device comprises the step of turning on the cleaning valve of at least one first cleaning unit to spray cleaning water and filling the inside of the screen of the solid-liquid separator with cleaning water; The above cleaning device, when a water overflow sensor detects that the cleaning water has reached a certain level, turns off the cleaning valve and temporarily stops the operation of the cleaning device to immerse the interior of the solid-liquid separator in the cleaning water; and The above washing device controls the solid-liquid separator to operate in reverse rotation after a preset soaking time has elapsed to soak and wash the screen. A cleaning control method for a solid-liquid separator for food waste, characterized by further including
  12. In paragraph 8 or 11, The washing device includes a step of monitoring whether the operating period of the solid-liquid separator has elapsed a second cycle (P2, P2 >P1); When the second cycle (P2) has elapsed as a result of monitoring, the cleaning device stops the power and inlet pump of the solid-liquid separator and checks whether the shut-off valve of the solid-liquid separator is closed so that water cannot escape; The above cleaning device comprises the step of turning on the detergent valve of at least one second cleaning unit to spray a detergent solution and filling the inside of the screen of the solid-liquid separator; The washing device comprises the step of turning off the detergent valve and temporarily stopping the operation of the washing device when the water overflow sensor detects that the detergent solution has been filled to a certain level; and The washing device controls the solid-liquid separator to operate in reverse rotation after a preset soaking time has elapsed to additionally soak and wash the screen. A cleaning control method for a solid-liquid separator for food waste, characterized by further including

Description

Washing apparatus of solid-liquid separator for food waste and washing control method thereof The present invention relates to a cleaning device for cleaning a solid-liquid separator for food waste that separates water and food from food waste and discharges them externally, and a cleaning control method thereof. Food waste is primarily generated in households, restaurants, and schools, and requires proper disposal due to its impact on the environment. However, since food waste contains high moisture content, it is important to effectively separate and process it. One of the existing methods for food waste disposal is the use of solid-liquid separators. Solid-liquid separators play a crucial role in effectively separating water from food waste to reduce volume, improve ease of processing, and minimize environmental impact. This type of solid-liquid separator separates food waste fed into a cylinder into food and water through holes formed in the walls of a single screen, and a screw feeder inside the screen transports the food with the water separated upwards to discharge the food to the outside. However, when the solid-liquid separator separates food and water through centrifugation within the screen, small food particles get stuck in the holes of the screen walls. Additionally, when discharging food using the screw feeder inside the screen, food may also adhere to the holes in the walls as it is pushed towards them by the screw feeder. If foreign substances such as food get stuck in the holes of the screen, the holes become clogged, reducing processing performance. If left stuck for a long time, they not only cause foul odors but also harden like cement on the screen surface, so a system is required to periodically remove the foreign substances. The present invention devises a system for periodically cleaning and managing a solid-liquid separator to remove foreign substances. Related prior art documents include Korean Registered Patent Publication No. 10-2178599 (Title of invention: Separator for separating crushed food waste, Registration date: Nov. 09, 2020) and Korean Registered Patent Publication No. 10-2335929 (Title of invention: Food waste treatment device, Registration date: Dec. 01, 2021). FIG. 1 is a diagram showing the connection relationship between a washing device and a solid-liquid separation device according to an embodiment of the present invention. FIG. 2 is an internal configuration diagram of a cleaning device according to an embodiment of the present invention. FIG. 3 is a table shown to explain the cleaning mode operating in the cleaning device according to an embodiment of the present invention. FIG. 4 is an overall flowchart showing a cleaning control method for a solid-liquid separator for food waste according to the first embodiment of the present invention. FIG. 5 is a flowchart illustrating a washing control method for a solid-liquid separator for food waste according to a second embodiment of the present invention. FIG. 6 is a flowchart illustrating a washing control method for a solid-liquid separator for food waste according to a third embodiment of the present invention. FIG. 7 is a flowchart illustrating a washing control method for a solid-liquid separator for food waste according to the fourth embodiment of the present invention. In order to fully understand the present invention, the operational advantages of the present invention, and the objectives achieved by the embodiments of the present invention, reference must be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings. The present invention will be described in detail below by explaining preferred embodiments with reference to the attached drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the invention. FIG. 1 is a diagram showing the connection relationship between a cleaning device and a solid-liquid separation device according to an embodiment of the present invention, and FIG. 2 is an internal configuration diagram of a cleaning device according to an embodiment of the present invention. A cleaning device (200) according to an embodiment of the present invention is electronically connected to a solid-liquid separator for food waste (100, hereinafter referred to as 'solid-liquid separator') as shown in FIG. 1 and controls the operation necessary to clean the solid-liquid separator (100). The cleaning device (200) according to an embodiment of the present invention basically removes food residue (foreign matter) remaining in the solid-liquid separator (100) by spraying cleaning water or detergent solution into the solid-liquid separator (100). Depending on the condition of the solid-liquid separator (100) and the operating time/period of operation, it is characterized by increasing cleaning efficiency by supplementin