Reverse spraying standing wave dedusting and cooling tower

Abstract

The invention belongs to the technical field of dust removal towers, and relates to a reverse spraying standing wave dedusting and cooling tower. The dedusting and cooling tower comprises a spraying body and a gas-liquid separation tower, wherein the spraying body comprises a pipe body, wherein a gas inlet is formed in one end of the pipe body, and a flow guide assembly and a spraying assembly are sequentially arranged from the gas inlet to the communicating part of the gas inlet and the gas-liquid separation tower from top to bottom; the spraying assembly is of an L-shaped structure, an opening of the spraying end of the spraying assembly faces upwards, the spraying end of the spraying assembly is provided with a pressure sensor, and the spraying assembly is controlled by a controller arranged outside the spraying assembly to control the flowing speed and the height of sprayed water flow so as to form a standing wave film; the gas-liquid separation tower comprises a tower body, a steam-water separation device and a sedimentation tank; and the communicating part of the spraying body and the tower body is arranged between the steam-water separation device and the sedimentation tank, and the gas outlet is formed in the upper part of the tower body. High-temperature flue gas in the dedusting and cooling tower is in full contact with spraying water which is sprayed from top to bottom to form a standing wave film, the operation is stable, the dedusting effect is good, and the waste heat recovery rate is high.

Description

technical field [0001] The invention belongs to the technical field of dedusting towers, and relates to gas dedusting and energy saving and emission reduction, in particular to a reverse spray standing wave dedusting and cooling tower. Background technique [0002] In iron and steel enterprises and other traditional enterprises, especially in the coking process, it is usually necessary to use cooling towers, which will release a large amount of mist water vapor during the cooling process. Efficient recovery and utilization of waste heat resources generated by the coking process is the main direction of building a resource-saving and environmentally friendly green coking plant for energy conservation, and it is also one of the main ways to reduce energy consumption of coke ovens. [0003] Chinese invention patent application CN104324597A provides a combined flue gas purification system. The flue gas purification system passes through the spray layer arranged in the middle of ...

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Problems solved by technology

[0003] Chinese invention patent application CN104324597A provides a combined flue gas purification system. The flue gas purification system passes through the spray layer arranged in the middle of the spray scrubber, and the flue gas is transmitted from the bottom to the top of the spray scrubber. The spray layer is in contact, but in this way, due to the light gas overflowing upwards, there is a situation of high-temperature flue gas overflowing, the temperature of the exhausted flue gas is high, the dust removal effect is poor, and the failure rate is high during operation

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