Method and device for strengthening gasification and combustion of straw bales

Abstract

The invention discloses a method and device for strengthening gasification and combustion of straw bales, and relates to the utilization of thermal energy of the whole straw bales. In order to strengthen the gasification intensity of a whole straw bale gasification and combustion system, pressurized flue gas jet flow 9 of the whole straw bale gasification and combustion system is blown into a straw bale 1 in a gasification chamber 4. The flue gas jet flow 9 transports heat and gas to the inner part of the straw bale 1. Therefore, the combustion and gasification of straws are strengthened and expanded in the straw bale 1. Due to the fact that the oxygen content of recirculated flue gas is low and gasification and combustion temperatures are only moderately increased, straw ash is preventedfrom melting into slag. The flue gas jet flow 9 can be flown by a radial fan 13 arranged outside the gasification chamber 4, and according to the method and device for strengthening the gasification and combustion of the straw bales, the function can further be achieved by an improved induced draft fan 8. The implementation of the method and device for strengthening the gasification and combustionof the straw bales does not require expensive materials, and as a result, the cost of the whole straw bale gasification and combustion system is significantly reduced and the life is multiplied, andthe value of the straw burning ash as fertilizers is retained.

Description

technical field [0001] The invention relates to the utilization of heat energy of a whole bundle of straws. In order to make the combustion and gasification of straw bales intensified and complete, it can be realized by flue gas injection. This patent is to compress the flue gas at the end of the thermal system of the whole bundle of straw, that is, to compress the exhaust gas at the end of the thermal system through an improved induced draft fan to provide an additional flue gas jet. Background technique [0002] Combustion of a bale of straw typically begins with the outer layer, but ash build-up on the surface further blocks the air needed for combustion from entering the interior of the straw bale. Therefore, in practice, the air is generally pressurized and blown to the straw bale to prevent the formation of a dense ash layer, and the surface flame enters the deep layer of the straw bale along the stalk of the straw. [0003] In addition, the combustion of straw can a...

AI Technical Summary

Problems solved by technology

Even if the refractory blower is made of more expensive materials, there are still wear and life problems, which will increase the overall cost and operating cost of the thermal system, so the applicability of the refractory blower technology will be reduced, especially for very small, inexpensive and This is especially true for bale gasification systems that require low maintenance

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