Cobalt-rich crust mining system and method for producing temperature difference effect through carbon dioxide jet flow

The invention discloses a cobalt-rich crust mining system and method for producing a temperature difference effect through carbon dioxide jet flow, and relates to the technical field of deep sea seabed cobalt-rich crust mining. Comprising a gas source supply system, a transportation system and a cobalt-rich crust collection system, the cobalt-rich crust collection system comprises a walker, a relay device, a heating fluid preparation device, a cooling fluid preparation device, a carbon dioxide fluid preparation device and a collection head jet flow collection device, high-temperature supercritical carbon dioxide is sprayed out through a first jet flow head, and under the action of pressure, the high-temperature supercritical carbon dioxide is collected; the cobalt-rich crusts can uniformly permeate into porous medium rock masses with obvious pore development, such as the cobalt-rich crusts, the cobalt-rich crusts are heated to expand, high-pressure low-temperature liquid carbon dioxide with high-hardness sand