Fuel disturbance and crushing mechanism of biomass molding fuel combustion device

Abstract

The invention belongs to the technical field of biomass combustion, and relates to a fuel disturbance and crushing mechanism of a biomass molding fuel combustion device. The fuel disturbance and crushing mechanism is characterized in that a carbon crushing cutter (19) and a guide unit are included; a fire grate (13) is arranged on the lower side of the guide unit and connected with a rotating mechanism for driving the fire grate (13) to rotate around a vertical rotating shaft, and the fire grate (13) and the guide unit rotate oppositely; the guide unit enables materials to move towards the middle of the guide unit, and therefore the materials are disturbed; and the carbon crushing cutter (19) is arranged in the middle of the guide unit and connected with the fire grate (13), and the carbon crushing cutter (19) and the guide unit rotate oppositely and cooperate to crush the materials. According to the fuel disturbance and crushing mechanism of the biomass molding fuel combustion device, the materials can be moved and disturbed, combustion conditions are improved, the pyrolysis effect of the materials is ensured, the materials can be completely carbonized, and biomass material uniform combustion is facilitated.

Description

technical field [0001] The utility model relates to a fuel disturbance and crushing mechanism of a biomass briquette fuel combustion device, which belongs to the technical field of biomass combustion. Background technique [0002] With the adjustment of my country's agricultural structure and the development of rural economy, it is urgent to solve the problem of distributed small-scale heating such as drying of agricultural products and heating of agricultural facilities. For example: my country's grain drying mechanization level is 10% (the level of 80-90% in Japan and South Korea), and the loss of wet grain mildew is as high as 5% (less than 1% in developed countries). There is an urgent need to develop drying machinery and its matching small and medium-sized heating devices (generally less than 2.8MW). The heating demand of agricultural facilities (livestock and poultry houses, greenhouses, etc.) in 2 / 3 of my country's land area is also extremely urgent. [0003] Using ...

AI Technical Summary

Problems solved by technology

The patent with the application number 201210533851.3 discloses a high-efficiency segmental control combustion method and system for a biomass boiler with a charcoal combustion pool. It uses a water-cooled vibrating grate combined with a charcoal combustion pool to achieve segmental combustion, which is used to reduce the content of slag and fly ash. The amount of charcoal requires that the combustion temperature of charcoal in the combustion pool be between 400°C and 600°C. Although the charcoal combustion temperature is given, no specific method or measure for controlling the combustion temperature is given.

However, the metal consumption of the grate furnace is large, and the volume and weight of the equipment are relatively large. It is suitable for boilers with medium capacity of 10~65t / h.

And the fuel on the chain itself has no disturbance, so it is not suitable for burning fuel with strong coking property, let alone small biomass drying and heating furnaces

The patent application No. 201410819577.5 discloses a biomass briquette fuel combustion boiler with fixed and movable grates, which can form fuel disturbance by sliding movable grates, but does not provide a control method and device for the residence time of fuel in the furnace

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