Multi-stage deslagging furnace

Abstract

The invention discloses a multi-stage deslagging furnace. The multi-stage deslagging furnace comprises a furnace body with a cavity. The upper portion of one side of the furnace body is provided witha feed port, and the lower portion of the other side of the furnace body is provided with a slag outlet. The furnace body is at least internally provided with a first-stage inclined fire grate close to the feed port and a second-stage horizontal fire grate connected with the bottom of the first-stage inclined fire grate. A slag discharge box is further arranged on the slag discharge face of the bottom of the furnace body. A first-stage step and a slag discharge box step are arranged between the bottom of the first-stage inclined fire grate and the second-stage horizontal fire grate and betweenthe second-stage horizontal fire grate and the slag discharge box correspondingly. The multi-stage deslagging furnace further comprises a first-stage slag push rod set and a slag discharge box connecting rod used for pushing the slag discharge box out of the furnace body. The first-stage slag push rod set and the slag discharge box connecting rod can move simultaneously. According to the multi-stage deslagging furnace provided by the invention, the multi-stage fire grates are arranged in the furnace body so that granular fuel can move on the different fire grates, the granular fuel with the high ash content can be burned continuously and stably, and furnace slag can be automatically discharged from the furnace body.

Description

technical field [0001] The invention relates to the field of biomass furnace equipment, in particular to a multi-stage slag removal furnace. Background technique [0002] Due to the fact that there are generally no automatic slag pushing and slag discharge devices in the small biomass furnaces used in large quantities for drying crops in my country at this stage, the small biomass furnaces used are only suitable for high-quality wood pellet fuels with low ash content. [0003] If the existing small-scale biomass furnace uses raw materials with high ash content such as rice husks and straws to produce granular fuel, the combustion will be unable to continue due to the accumulation of slag in a short period of time; as a result, the drying of crops However, it is impossible to use large and cheap agricultural wastes such as rice husks and straws as fuel on site, resulting in high fuel costs for small biomass furnaces and making it impossible to make better use of resources. ...

AI Technical Summary

Problems solved by technology

[0002] Due to the fact that there are generally no automatic slag pushing and slag discharge devices in the small biomass furnaces used in large quantities for drying crops in my country at this stage, the small biomass furnaces used are only suitable for high-quality wood pellet fuels with low ash content

[0003] If the existing small-scale biomass furnace uses raw materials with high ash content such as rice husks and straws to produce granular fuel, the combustion will be unable to continue due to the accumulation of slag in a short period of time; as a result, the drying of crops However, it is impossible to use a large amount of cheap rice husks, straws and other agricultural wastes as fuel on the spot, which leads to the high cost of fuel used in small biomass furnaces and the inability to make better use of resources

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