Gas-solid reaction device realizing synergistic adsorption of two heavy metals based on solid states

Abstract

The invention relates to a gas-solid reaction device realizing synergistic adsorption of two heavy metals based on solid states. The device comprises: a U-shaped reaction tube, wherein the two sides of the U-shaped reaction tube are respectively a gas inlet section and a gas outlet section, and at least two metal evaporation areas and an adsorption reaction area are sequentially formed in the gas inlet section from top to bottom; and a guide rod arranged in a vertical direction, wherein the guide rod is provided with at least three heating furnaces sliding along the guide rod, the at least three heating furnaces are used for heating the at least two metal evaporation areas and the adsorption reaction area respectively, the top face and the bottom face of each heating furnace are provided with openings aligned in the vertical direction, the openings are used for allowing the U-shaped reaction tube to pass through, and the bottom face of the lowest heating furnace is closed. When each heating furnace slides to the top position or the bottom position of one guide rod, the at least two metal evaporation areas and the adsorption reaction area of the U-shaped reaction tube are accommodated in the corresponding heating furnace or are exposed out of each heating furnace. Synergistic adsorption of two heavy metals is achieved, and meanwhile, calculation errors generated when adsorption characteristics related to time are studied are reduced.

Description

technical field [0001] The invention relates to the technical field of air pollution prevention and control, in particular to a gas-solid reaction device based on solid-state generation and collaborative adsorption of two heavy metals. Background technique [0002] As an important form of environmental pollution, heavy metal pollution has become an important research object in the field of environmental pollution control. At present, the amount of domestic waste generated per capita per day in China has increased significantly. With the gradual reduction of landfill land, the current main treatment method is waste incineration. The flue gas produced by waste incineration contains a variety of heavy metal elements. posed a great challenge. Various chemical companies also have the problem of heavy metal discharge, which poses a threat to human life and environmental safety. In addition, my country's power industry is still dominated by coal-fired power generation, and the fl...

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Problems solved by technology

This device has the following disadvantages: (1) Since the reaction tube interface is located at the upper and lower ends respectively, the experiment requires ventilation before heating, so the reaction tube needs to be placed and connected before heating during the experiment, and the electric heating furnace cannot be avoided from room temperature to the device During the temperature rise process, the properties of the adsorbent will be affected, and large errors will be generated when studying the time-related adsorption characteristics, which will cause errors in the adsorption efficiency of the adsorbent for heavy metal vapor at a specific temperature; (2) at the end of the experiment The device is not easily disassembled and cannot be taken out immediately, resulting in large errors when studying the time-dependent adsorption characteristics

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