Control system and method of sedimentation tank of waste gas treatment equipment

Abstract

The invention relate to a control system and method of a sedimentation tank of waste gas treatment equipment. The sedimentation tank is provided with a liquid level detection structure and a slag discharge structure, wherein the liquid level detection structure comprises a detection bracket, a first infrared sensor, a second infrared sensor and a floating structure. By means of the arrangement, the liquid level detection structure is arranged, the two infrared sensors are used for detection, and accordingly, the first infrared sensor detects the distance to the highest position (the upper surface of a floating body) of the liquid level, the second infrared sensor detects the distance to the lowest position (the upper surface of the waste slag) of the liquid level, and the actual distance to the liquid level can be obtained. The thickness of the waste slag in the sedimentation tank can be judged more simply and reliably, water replenishing and slag discharging subsystems can be startedsimultaneously for water replenishing and slag discharging operations under the condition of too much waste slag, and human intervention is not needed.

Description

technical field [0001] The invention relates to waste gas treatment equipment, more specifically, to a control system and method for a settling tank of waste gas treatment equipment. Background technique [0002] Existing absorption equipment includes absorption tower, settling tank, spray equipment, air inlet pipe and air outlet pipe. The exhaust gas enters the interior of the absorption tower through the air inlet pipe. The tank is set under the spraying equipment, and the sprayed liquid is lifted by the pump body inside the settling tank to the spraying equipment for spraying, and after spraying, it mixes with the exhaust gas particles entering the absorption tower and falls into the settling tank under the action of gravity, completing The circulation of the liquid, while the remaining gas leaves the absorption equipment through the gas outlet pipe to complete the sedimentation and absorption of the waste gas; [0003] However, there will be a problem at present. Due to...

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Problems solved by technology

[0003] However, there will be a problem at present. Due to the current situation, the precipitation of particulate matter is prone to occur during the process of waste gas treatment, so waste residue will be generated at the bottom of the settlement tank, and the generation of waste residue will make it difficult to estimate the remaining liquid in the settlement tank. Play a role In practice, it is difficult to judge the actual liquid level by visual inspection, and it is difficult to clean the sedimentation tank and replenish water.

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