Industrial boiler for burning bio-briquettes

Abstract

The invention discloses an industrial boiler for burning bio-briquettes. A front arch and a rear arch of which the front part is in an interdigitated shape are arranged in a body of the boiler; upper edges of two adjacent interdigitated parts of the rear arch are provided with corresponding grooves; a check block is arranged between two adjacent interdigitated parts; and two sides of the check block are fixedly connected with rotating shafts which are respectively arranged in the corresponding grooves. Furthermore, a figure-7 partition laminate is arranged above the rear arch; a movable division door is arranged between the rear end of the partition laminate and the rear arch; a circulating air pipe is connected with an air inlet of a draught fan outside the body through an air pipe; the air outlet of the draught fan is connected with a last-stage air bin of a chain grate; and a secondary air pipe at the air inlet on the side wall of a third combustion chamber is deflected toward the lower rear part, and is communicated with a main secondary air pipe outside the body. The industrial boiler has the advantages that: the bio-briquettes are efficiently and stably combusted; the boiler is started at a high speed and has high heat efficiency; black smoke is not generated when the boiler is started; and the integral delivery of the boiler can also be realized.

Description

technical field [0001] The invention relates to an industrial boiler, in particular to an industrial boiler provided with a front arch and a rear arch in the furnace body of the boiler. Background technique [0002] Biomass has CO in the process of energy conversion 2 Features zero emissions, i.e. CO from combustion 2 It can be re-fixed in biomass in the form of carbohydrates through photosynthesis, which is helpful for reducing the main greenhouse gas-CO 2 emissions are very beneficial. Therefore, using biomass as an alternative fuel for fossil energy can not only alleviate the problem of energy shortage, but also improve the ecological environment, which is of great significance to my country's economic construction and sustainable development of society. [0003] Biomass briquette refers to coal and biomass crushed into a certain particle size and dried to a certain degree, blended in a certain proportion, added a small amount of sulfur-fixing agent, and pressed under ...

AI Technical Summary

Problems solved by technology

The existing biomass-fired coal-fired boilers are basically based on the prototype design of coal-fired bed-fired boilers. This type of furnace generally adopts air distribution through the warehouse. The furnace arch is divided into front and rear arches and cannot be adjusted. The fuel characteristics of biomass briquettes and general coal are different, and there are big differences in ignition performance, energy density and combustion characteristics. Such a structure is not conducive to the ignition and stable combustion of biomass briquettes, and there are generally boilers Problem with black smoke on startup

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