Direct type environment-friendly biomass burning hot-blast stove

Abstract

The invention provides a direct type environment-friendly biomass burning hot-blast stove. The direct type environment-friendly biomass burning hot-blast stove comprises a fuel bin, a burner, a high temperature smoke purifying device and an air-mixing device. According to the direct type environment-friendly biomass burning hot-blast stove, technologies such as high temperature dust removal and repeat burning on smoke and dust generating in the primary burning process of biomass fuel are completed in one step in the device through the high temperature smoke purifying device communicated directly with the burner, so that the purposes of shortening procedure, simplifying equipment structure and lowering heat loss are achieved.

Description

technical field [0001] The present invention generally relates to biofuel combustion equipment, and in particular relates to a direct environmental protection biomass combustion hot air stove, which can be applied to the production and drying of chemical, fertilizer, feed, building materials, medicine, food, metallurgy and other products. Background technique [0002] Through long-term production practice, people have realized that only by using hot air as the medium and carrier can the heat utilization rate and thermal work effect be greatly improved. As a thermal power mechanical hot blast stove, it began to be widely used in my country in the late 1970s. It has become a replacement product for electric heat sources and traditional steam power heat sources in many industries. The hot air stove is a universal hot air device, which can be used in conjunction with drying equipment for various materials. It is widely used in the drying of products in the fields of agriculture,...

AI Technical Summary

Problems solved by technology

[0004] At present, this type of hot stove basically has the following limitations on the combustion of biomass fuel: First, the fuel needs to be made into fine powder particles for injection combustion, and the high-temperature flue gas produced by this combustion method carries a large amount of dust Difficult to remove

Second, although it is a granular biomass fuel, a large amount of black smoke (that is, incompletely burned carbon black particles) will be produced during the combustion process, and the existing combustion equipment is difficult to eliminate the carbon black particles

[0005] Therefore, the flue gas produced by the combustion of the existing hot blast stove equipment cannot be directly used as a drying heat source for most materials, and it is necessary to use the flue gas to perform heat exchange with clean air to dry the heated air; or, it needs to be dried by Subsequent equipment performs dust removal treatment for flue gas in multiple processes such as sedimentation

This causes the process to become cumbersome, the equipment structure is complicated, the failure rate increases, and due to the heat loss in each process, the heat utilization efficiency is reduced

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