Waste disposal systems and waste disposal methods

Abstract

The system accurately monitors the condition of the waste on the grate and controls the combustion of the incinerator based on that monitoring. [Solution] The waste treatment system virtually divides the waste on the grate into multiple regions, derives the amount of waste and the ash content of the waste for each region, calculates the amount of ash in the post-combustion stage of the waste incinerator based on the derived amount of waste and ash content, performs exhaust gas control to adjust the amount of exhaust gas supplied to the post-combustion stage after removing dust from the exhaust gas generated by the combustion of the waste based on the calculated amount of ash, and performs grate control to adjust the reciprocating speed of the grate corresponding to the post-combustion stage according to the calculated amount of ash.

Claims

1. Image data generated from thermal image information captured of the area containing the waste inside a waste incinerator equipped with a grate for moving the waste is acquired. The process data in the aforementioned waste incinerator is acquired, The waste on the grate is virtually divided into multiple regions, at least along the direction of transport of the waste. Based on the acquired image data, for each of the multiple regions, the amount of waste present on the grate, the amount of waste moved, and the surface temperature of the waste are derived. Based on the acquired process data, the amount of waste present on the grate, the amount of waste moved, and the surface temperature of the waste, the percentage of ash content in the waste is derived for each of the multiple regions. Based on the derived amount and the ash content ratio, the amount of ash in the waste in the post-combustion stage of the waste incinerator is calculated. Based on the calculated ash content, exhaust gas control is performed to adjust the amount of exhaust gas supplied to the post-combustion stage after removing dust from the exhaust gas generated by the combustion of the waste, and grate control is performed to adjust the reciprocating speed of the grate corresponding to the post-combustion stage according to the calculated ash content. Waste disposal system.

2. The exhaust gas control controls the amount of combustion air supplied to the post-combustion stage based on the ash content. The waste treatment system according to claim 1.

3. The waste on the grate of the waste incinerator is further virtually divided into multiple regions along the width direction of the incinerator, and based on the acquired process data, the amount of waste present on the grate, the amount of waste moved, and the surface temperature of the waste, the ash content of the waste is derived for each of the multiple regions divided in the transport direction and the width direction. The exhaust gas control adjusts the amount of combustion air supplied to each region in the furnace width direction in the post-combustion stage and the amount of exhaust gas supplied to the post-combustion stage, or the amount of exhaust gas supplied to the post-combustion stage, based on the calculated ash content. The waste treatment system according to claim 1.

4. A method for processing waste in a waste incinerator equipped with a grate for moving waste, The steps include: acquiring process data in the aforementioned waste incinerator; The steps include: dividing the waste on the grate into a virtual number of regions at least along the direction of transport of the waste, and acquiring image data generated from thermal image information obtained by imaging the region containing the waste within the number of regions; Based on the acquired image data, a first step is to derive the amount of waste present on the grate, the amount of waste moved, and the surface temperature of the waste for each of the multiple regions, A second step of deriving the percentage of ash in the waste for each of the multiple regions based on the acquired process data, the amount of waste present on the grate, the amount of waste moved, and the surface temperature of the waste, The steps include: calculating the amount of ash in the waste in the post-combustion stage of the waste incinerator based on the amount of presence derived in the first step and the ash ratio derived in the second step; exhaust gas control adjusting the amount of exhaust gas supplied to the post-combustion stage after removing dust from the exhaust gas generated by the combustion of the waste, based on the calculated amount of ash; and grate control adjusting the reciprocating speed of the grate corresponding to the post-combustion stage according to the calculated amount of ash; A waste disposal method that includes the following features.

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