4 results about "Industrial furnace" patented technology

The invention discloses a hot flue gas treatment device and method for an industrial furnace. The hot flue gas treatment device comprises a bottom plate directly placed on the ground. Meanwhile, the right end of the first smoke inlet pipe is mounted at the left upper end of the connecting cylinder; the box body is fixedly connected to the right upper end of the industrial furnace body; the filter frame of which the front-view longitudinal section is of a concave structure is placed in the middle end of the connecting cylinder; the mounting mechanism is arranged on the filtering frame; and the anti-blocking mechanism is arranged on the connecting cylinder. According to the hot flue gas treatment device for the industrial furnace and the treatment method, the filter screen can be conveniently cleaned, the filter screen is prevented from being blocked during purification, the purification speed is increased, the purification assembly is easily mounted and dismounted, meanwhile, condensed water can be conveniently collected and recycled during flue gas waste heat recovery, and the environment-friendly effect is achieved. And pure oxygen or liquid oxygen can be heated during waste heat recovery.

Relating to the technical field of industrial furnace blanking, the invention provides a salt bath furnace blanking device and a salt bath heating furnace. The salt bath furnace blanking device comprises a workpiece conveying mechanism, a workpiece blanking mechanism and a salt curtain blanking mechanism. The workpiece conveying mechanism is accommodated in the heating furnace body, also has a discharge end corresponding to a blanking port, and has a first blanking passage with a smooth inner wall, the top of the first blanking passage and the discharge end are disposed oppositely, the salt curtain blanking mechanism is disposed below the blanking port, and has a second blanking passage, and the second blanking passage and the first blanking passage are disposed oppositely and are communicated with each other. Compared with the prior art, the salt bath furnace blanking device provided by the invention avoids contact of workpieces with furnace bricks, and then avoids material sticking phenomenon, enables workpieces to fall into brine smoothly, avoids "poor quenching" phenomenon, and ensures the workpiece quality.

The invention relates to a method for recovering carbon dioxide from tail gas of an industrial furnace and producing lithium carbonate, which comprises the following steps of: removing particulate matters from the tail gas of the industrial furnace, performing denitration and desulfurization treatment, pressurizing the treated tail gas to 0.1-0.7 MPa, dehydrating, and removing NOx and SO2 by adopting a double-tower temperature swing adsorption device to obtain purified tail gas, introducing into a four-tower pressure swing adsorption device to separate carbon dioxide, and finally introducing the obtained carbon dioxide into a lithium hydroxide solution to prepare lithium carbonate. According to the invention, trace sulfides and nitrogen oxides in the tail gas are removed by using a temperature swing adsorption method, so that the total concentration of SO2 and NOx in the tail gas is 1t; according to the method, a pressure swing adsorption method is adopted to recover carbon dioxide, the obtained carbon dioxide gas is high in purity, high in recovery rate and large in treatment capacity, the separated and refined high-purity carbon dioxide can be used as a raw material in the carbonization process to produce battery-grade lithium carbonate, and resource utilization of the carbon dioxide in the tail gas of the industrial furnace is achieved.