Underground mine return air shaft high temperature saturated air flow dehumidification device and method

Abstract

The invention discloses a dehumidifying device and method for an underground mine return-air shaft high-pressure saturated airflow. The device comprises a confluent area (1), an atomization area (2), a dehumidifying area (3), an outflow area (4), rollers (19) and a guide rail (20). A cover plate (14) is arranged on the top of the confluent area (1), an electric gate (15) is mounted on the side face of the confluent area (1), and an atmospheric temperature sensor (21) is mounted on the outer side of the confluent area (1). A hot air temperature sensor (21a) and a wind speed sensor (22) are mounted at an inlet of the atomization area (2). Filtering nets (11) are mounted in the dehumidifying area (3), and dehumidified air temperature sensor (21b) is mounted at an outlet of the dehumidifying area (3). A diffuser (12) is arranged at an outlet of the outflow area (4). A PLC control system (23) controls the cover plate (14), the electric gate (15), an electric valve (7), and a spraying pump (6). The dehumidifying device has the advantages of optimized structure, full atomization, high demisting efficiency and low ventilation energy consumption, and on-demand dehumidifying according to the change of the air temperature and air amount is achieved.

Description

technical field [0001] The invention belongs to the technical field of mine ventilation and environmental protection, and specifically relates to a dehumidification device and method for making the high-temperature saturated air flow condense and condense in the return air shaft of an underground mine and avoiding the phenomenon of "white smoke" at the well head, and is especially suitable for the return air shaft of a deep underground mine. A device and method for dehumidifying and eliminating water mist at the wellhead by wind flow in mine return air wells with high air flow temperature and low surface atmospheric temperature. Background technique [0002] The fresh air of the mine ventilation system enters from the surface along the air intake shaft, and exchanges heat and moisture with various heat and humidity sources such as underground mining machinery and equipment, damp surrounding rock walls, and ore self-oxidation, which gradually increases the temperature and humi...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the visual pollution phenomenon of "white smoke" at the wellhead formed by high-temperature saturated air in the return air shaft of the mine, and the existing technical solutions have low atomization degree, poor defogging effect, high ventilation energy consumption, and high construction risk. In order to solve technical problems such as difficult maintenance and management in the later stage, a high-temperature saturated air flow dehumidification device for underground mine return air shafts with optimized structure, sufficient atomization, high demisting efficiency, low ventilation energy consumption, and variable air temperature and air volume can be provided.

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