Chain boiler for collaborative combustion of biomass and household waste and operating method of chain boiler

Abstract

The invention provides a chain boiler for collaborative combustion of biomass and household waste and an operating method of the chain boiler. The chain boiler comprises a chain boiler body, a feedingdevice, a mixing device, a temperature measuring device, a smoke measuring device and an air distributing device. The feeding device comprises three layers of hoppers for conveying the biomass and the household waste, and an adjuster can be used for adjusting the feeding amount. The temperature measuring device comprises three groups of temperature sensors, an air chamber of the chain boiler is divided into three air portions through the air distributing device, air inflow branch pipes are connected with mass-flow meters, and the valve openings of the mass-flow meters and the feeding amountsof all the layers of hoppers are adjusted according to dynamic feedback of each group of temperature sensors and CO sensors. Rotatable longitudinal air distributing plates are arranged in the air chamber, the air feeding amount from the front end to the rear end of each air portion of the air chamber can be adjusted, and in combination with a delayed air distributing or advanced air distributing process, the purpose of uniform combustion is achieved. The operating principle is clear, resourceful treatment of the household waste is achieved while the combustion efficiency of the biomass is improved, the waste is utilized, and economic benefits can be created.

Description

technical field [0001] The invention belongs to the technical field of industrial boiler combustion, and relates to a chain furnace, in particular to a chain furnace for co-combusting biomass and domestic waste and an operation method thereof. Background technique [0002] Biomass energy is a renewable and clean energy that exists widely and is easily obtained. As a resource with abundant reserves, biomass energy has already occupied an important position in the energy composition, and it is the fourth largest energy after coal, oil and natural gas. As an industrial boiler with a high degree of mechanization, the chain furnace is quite common in the field of medium-capacity boilers burning biomass. The chain furnace has a simple structure and imperfect automatic monitoring equipment, resulting in low operating efficiency of the chain furnace, which not only causes a great waste of biomass resources, but also emits a large amount of pollutants such as greenhouse gases and ni...

AI Technical Summary

Problems solved by technology

However, domestic waste has the characteristics of high water content, and burning it alone will cause system instability and low energy conversion efficiency.

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