High-temperature and high-pressure hot blast stove mixing coal with gas

Abstract

The invention discloses a high-temperature and high-pressure hot blast stove mixing coal with gas. The high-temperature and high-pressure hot blast stove mixing coal with gas includes a furnace body,a hearth is disposed in the furnace body, a grate is arranged at the bottom of the hearth, the upper portion of the furnace body is connected with a hot air heat exchanger, the hot air heat exchangeris communicated with a smoke dedusting device through a smoke discharging pipe, and two natural gas air injection combustion devices are arranged in front of the positions of the two sides of the hearth close to the grate at intervals of a certain distance respectively. By arrangement of the natural gas air injection combustion devices, the oxygen inlet amount and the flame coverage area are added, fuel fully burns, fuel particles which are suspended in the air and unburnt burn fully, and the high-temperature and high-pressure hot blast stove mixing coal with gas not only avoids resource waste, but also reduces the content of suspended particles in the smoke, achieves effects of smoke removal, dedusting and desulfuration and the like, and makes the discharged smoke meet the environmental protection requirements.

Description

technical field [0001] The invention belongs to the technical field of hot blast stoves, and in particular relates to a high-temperature and high-pressure hot blast stove mixed with gas and coal. Background technique [0002] As a thermal power machine, the hot blast stove began to be widely used in my country in the late 1970s. It has become a replacement product for electric heat sources and traditional steam power heat sources in many industries. [0003] However, the original hot blast stoves simply burn coal, most of which are not fully burned, and the exhausted flue gas does not meet environmental protection requirements, because the exhausted flue gas contains a large amount of incomplete combustion substances, especially more sulfides, which will There are varying degrees of harm to water, land, plants and humans, so post-treatment is required, but there are many tail gas treatment equipment, which are more complicated and costly. Contents of the invention [00...

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Problems solved by technology

[0003] However, the original hot blast stoves simply burn coal, most of which are not fully burned, and the exhausted flue gas does not meet environmental protection requirements, because the exhausted flue gas contains a large amount of incomplete combustion substances, especially more sulfides, which will There are varying degrees of harm to water, land, plants and humans, so post-treatment is required, but there are many tail gas treatment equipment in the post-stage, which is also relatively complicated and costly

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