Double-channel dry-type desulfurization device for ocean vessel

Abstract

The double-channel dry-type desulfurization device comprises a dry-type desulfurization cavity, a material spraying device and a breathable sealing plate, the dry-type desulfurization cavity is in the shape of a rectangular shell, air inlet pipes are arranged at the bottoms of the two sides of the dry-type desulfurization cavity, a conical discharging hopper is arranged at the bottom of the dry-type desulfurization cavity in a hollow mode, and the material spraying device is arranged at the bottom of the conical discharging hopper. A gas outlet pipe is arranged on the right side of the top of the dry-type desulfurization cavity, a material spraying device is arranged at the top of the dry-type desulfurization cavity and comprises a spray head and a material pipe, the spray head is arranged at the top end in the dry-type desulfurization cavity and communicated with the outer side of the top of the dry-type desulfurization cavity through the material pipe, and the breathable sealing plates are arranged at an opening of a gas inlet pipe of the dry-type desulfurization cavity. According to the invention, calcium carbonate powder subjected to high-temperature calcination is sprayed into the dry-type desulfurization cavity through the material spraying device, so that dry-type desulfurization of tail gas is completed, and the calcium carbonate powder is prevented from entering the gas inlet pipe through the breathable sealing plate.

Description

technical field [0001] The invention belongs to the technical field of dry desulfurization devices, and in particular relates to a dual-channel dry desulfurization device for ocean-going ships. Background technique [0002] Ocean transportation refers to a way of using ships to transport goods between ports in different countries and regions through sea lanes. It is the most widely used in international cargo transportation. At present, more than 2 / 3 of the total international trade volume is imported from China. About 90% of the total export cargo is transported by sea, and ships generally use residual fuel oil as an energy source. In part, the residual fuel oil will produce a large amount of particulate matter and sulfur dioxide when it is used, which will seriously pollute the air. Therefore, there is an increasing demand for a marine exhaust gas treatment device. [0003] The amount of exhaust gas discharged from the main engine of an ultra-large ship (the amount of exh...

AI Technical Summary

Problems solved by technology

To deal with this situation with a conventional desulfurization device for the main engine mounted on a relatively small ship such as a bulk carrier, it is necessary to arrange a plurality of absorption towers, which may reduce the load on the ship or reduce the capacity of the ship. Design restrictions or changes such as body size expansion

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