A chain furnace for co-combustion of biomass and domestic waste and its operating method

Abstract

A chain furnace for co-combustion of biomass and domestic waste and an operation method thereof, comprising a chain furnace main body, a feeding device, a mixing device, a temperature measuring device, a flue gas measuring device, and an air distribution device. The feeding device includes a three-layer hopper for conveying biomass and domestic waste, and the regulator can be used to adjust the feeding amount. The temperature measuring device includes three sets of temperature sensors, and the air distribution device divides the air chamber of the chain furnace into three air parts, which are connected to the mass flow meter by the air inlet branch pipe, and adjust the mass flow meter according to the dynamic feedback of each set of temperature sensors and CO sensors The opening of the valve and the feeding volume of each layer of hopper. There is a rotatable longitudinal air distribution plate inside the air chamber, which can adjust the air supply volume from the front end to the rear end of each air chamber. Combined with the delayed air distribution or early air distribution process, the purpose of uniform combustion can be achieved. The operation principle of the invention is clear, and while improving the efficiency of biomass combustion, it realizes the resource treatment of domestic garbage, realizes waste utilization, and can create economic benefits.

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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