Tower type biomass continuous carbonization furnace

Abstract

The invention discloses a tower-type continuous carbonization furnace for biomass. The tower-type continuous carbonization furnace comprises a furnace body and a mounting base; the inner cavity of the furnace body is provided with, from top to bottom, a drying chamber, a carbonization chamber, a high temperature chamber and a cooling chamber, wherein adjacent chambers are separated by a movable grate; the sidewall of the high temperature chamber is provided with a combustion chamber, the sidewall of the furnace body is provided with a nozzle equipped with a first gas inlet and a second gas inlet, the head of the nozzle extends into the combustion chamber, and the second gas inlet is connected with an induced draught fan equipped with a combustor; a feed hopper is connected with the inner cavity of the furnace body through a feeding control unit, and a discharge hopper equipped with a cindervalve is arranged at the bottom of the furnace body; and a gas channel communicated with the drying chamber is arranged on the top of the furnace body and is communicated with a gas purifying and cooling system, an outlet of the gas purifying and cooling system is communicated with the second gas inlet in the nozzle and the through hole in the discharge hopper through a conveyer pipeline, and a first blower fan is arranged on the conveyer pipeline. The tower-type continuous carbonization furnace provided by the invention has the following advantages: capacity of realizing continuous production, low energy consumption, high biochar yield and good and stably biochar quality.

Description

technical field [0001] The invention relates to a biomass carbonization furnace, in particular to a tower type biomass continuous carbonization furnace. Background technique [0002] my country is a big producer of charcoal, with an annual charcoal output of up to 10 million tons. With the rapid development of the national economy, the demand for charcoal is also increasing year by year. At the same time, my country is still a large agricultural production country, with about 7 billion tons of biomass waste such as crop straws every year, but its utilization rate is only 20%. wasted. Biomass carbonization technology can effectively convert these biomass wastes into biomass carbonization products - combustible gas and biochar, that is, charcoal, which can greatly reduce the demand for natural wood, thereby effectively protecting forestry resources. Biomass carbonization is the use of thermochemical reaction principles to prepare green renewable fuels using biomass waste such...

AI Technical Summary

Problems solved by technology

However, the device can only operate intermittently and cannot achieve continuous production. In addition, an external heat source is always required during the working process. The energy consumption is relatively large and the production rate is only about 16%, which is not ideal.

Images