System for separation of gas and solid

A system for separation of gas and solid at least comprising:

• a waste gas treatment device, which is a negative pressure waste gas treatment device that ejects a washing liquid to generate a suction force during washing operation of the negative pressure waste gas treatment device;
• and
• at least one cyclone trapping device at least comprising:
• a gas inlet and outlet chamber, the gas inlet and outlet chamber having a gas inlet tube communicating with a process waste gas source and a gas outlet tube communicating with the waste gas treatment device, wherein a suction port of the gas outlet tube with an opening direction facing upward is extended into the inside of the gas inlet and outlet chamber with a distance;
• and
• a cyclone separation chamber, the cyclone separation chamber communicating with a bottom of the gas inlet and outlet chamber, wherein a process waste gas that carries solid particles with a particle size greater than a preset value and the rest solid particles with a particle size equal to or smaller than the preset value is generated by the process waste gas source and introduced into the gas inlet and outlet chamber via the gas inlet tube by the suction force, so that the process waste gas, which is rotated downward, generates cyclones in the gas inlet and outlet chamber and/or the cyclone separation chamber, and the solid particles with the particle size greater than the preset value are rotated downward and separated from the process waste gas by centrifugal force, wherein the gas outlet tube is used to transport the centrifugally separated process waste gas to the waste gas treatment device by the suction force, wherein the opening direction of the suction port of the gas outlet tube is kept away from an opening direction of a gas outlet port of the gas inlet tube for avoiding inhalation of the solid particles carried by the process waste gas and kept away from a solid particle collection port of the cyclone separation chamber for avoiding inhalation of the solid particles separated by the centrifugal force, wherein the centrifugally separated process waste gas that carries the rest solid particles with the particle size equal to or smaller than the preset value is cut into micro air bubbles by the ejection of the washing liquid that generates the suction force during the washing operation of the negative pressure waste gas treatment device, wherein the rest solid particles with the particle size equal to or smaller than the preset value can be captured by the micro air bubbles and the centrifugally separated process waste gas can be dissolved in the washing liquid to obtain a washed gas.