Boiling type rice husk combustion boiler

Abstract

The invention discloses a boiling type rice husk combustion boiler which comprises a boiler body, a refractory furnace wall heat-insulation system, an electric control system, an air blasting system, an air mixed type screw feeder, a boiling type combustor and an induced draught system. The boiler body is of an energy-saving type full steel structure of the boiling type rice husk combustion boiler and is composed of an upper boiler barrel, a lower boiler barrel, an upper collecting box, a lower collecting box, a water wall tube, a convection heat exchanging pipe and a downcomer, the upper boiler barrel and the lower boiler barrel are communicated with each other through the water wall tube, the convection heat exchanging pipe and the downcomer, and the upper collecting box and the lower collecting box are communicated with each other through the water wall tube, the convection heat exchanging pipe and the downcomer; a steam connector, a safety valve connector and a pressure meter connector are arranged above the upper boiler barrel, a water level gauge connector is arranged at the front end of the upper boiler barrel, and a water inlet connector is arranged at the rear of the upper boiler barrel; a pollution discharge connector is arranged below the lower boiler barrel; the boiling type combustor is arranged on the lower portion of the boiler body, and a boiling bed is arranged at the bottom of the boiling type combustor; and the air mixed type screw feeder is arranged on the boiling type combustor. The boiler is simple and rigorous in whole structure, anti-abrasive, anti-explosive, thorough in combustion, high in heat utilization, long in service life and applicable to various enterprises, especially food processing enterprises.

Description

Technical field [0001] The invention relates to an environment-friendly and energy-saving boiler, in particular to a boiling rice husk boiler suitable for use by large, medium and small processing enterprises. Background technique [0002] As we all know, rice husk is a kind of combustible waste produced in the process of processing rice into rice, and all large, medium and small rice processing enterprises in China’s grain system are equipped with equipment suitable for rice drying, oil extraction, noodle drying, and rice flour processing. And other heat sources required for food production. The boiler heat sources used are mainly used for steaming, cooking and baking. In the past, the fuels used in these boilers were generally coal, electricity, oil or natural gas, which was not only a waste The renewable energy produced by this food system-rice husk, and the use of limited conventional fuel energy will lead to excessive operating costs. It cannot solve the environmental impact...

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Problems solved by technology

[0002] As we all know, rice husk is a kind of combustible waste produced in the process of processing rice into rice, and all major, medium and small rice processing enterprises in China's food system are equipped with equipment suitable for rice drying, oil extraction, noodle drying, and rice flour processing. and other boiler equipment for food production. The boiler heat source used is mainly used for steaming, boiling and baking. In the past, the fuel used for these boiler equipment was generally coal, electricity, oil or natural gas, which not only The self-produced renewable energy of the food system - rice husk, and the use of limited conventional fuel energy will lead to high operating costs, which cannot solve the impact of rice husk waste treatment on the environment and inevitably cause fires Therefore, how to make reasonable and effective use of rice husk as a cheap renewable energy has become an urgent research and solution problem for various grain processing and production enterprises. At present, some enterprises have developed boilers that use rice husk as fuel. , but due to the small size and light weight of the rice husk, the combustion characteristics cannot be grasped, which will cause the boiler tube wall to wear or cannot be fully burned, and cannot meet the combustion heat required by the boiler and the output requirements of the boiler, so it has not been able to Large-scale promotion and application

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