Biomass-and-city-solid-waste comprehensive utilization device and method

Abstract

The invention discloses a biomass-and-city-solid-waste comprehensive utilization device and a method. The biomass-and-city-solid-waste comprehensive utilization device comprises a crushing machine for crushing materials; a conveying belt is arranged below a material discharging opening of the crushing machine, an iron-removing device is arranged above the conveying belt, the tail end of the conveying belt is arranged on an inlet of a material cabin, a material shifting device is arranged in the middle of the material cabin, the bottom of the material cabin is connected with a screw feeding machine, an outlet of the screw feeding machine is connected with a gasification furnace, and a winnowing wind part is arranged on the outlet of the screw feeding machine; a fluidization separating device is arranged at the bottom of the gasification furnace, an outlet in the top of the gasification furnace is connected with a separator, the bottom of the separator is connected with a material returning device, and an outlet of the material returning device is connected with the gasification furnace; an outlet in the top of the separator is connected with a dust collector, the bottom of the dust collector is connected with a cool gray device, and the bottom of the cool gray device is connected with a pneumatic transmission device; a heat exchanger is arranged in an outlet flue channel of the dust collector, and fuel gas after heat exchanging is conveyed to a boiler. The biomass-and-city-solid-waste comprehensive utilization device and the method have the advantages of being controllable in pollutant discharging, small in cost, high in efficiency, capable of continuously and stably running, flexible in device arrangement, capable of achieving automation, easy to collectively control and the like.

Description

technical field [0001] The invention belongs to the technical field of utilization of "urban solid waste" and "biomass", and in particular relates to a device and method for comprehensive utilization of biomass and urban solid waste. Background technique [0002] Biomass mainly refers to lignocellulose (lignin for short) such as straw and trees other than grain and fruit in the process of agricultural and forestry production, leftovers of agricultural product processing, agricultural and forestry waste, and poultry manure and waste in the process of animal husbandry. matter etc. Biomass energy is an important part of renewable energy. The efficient development and utilization of biomass energy will play a very positive role in solving energy and ecological environment problems. [0003] Solid waste refers to the solid and semi-solid waste materials that pollute the environment and are discarded because of human production, construction, daily life and other activities, whic...

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Problems solved by technology

[0006] At present, the above treatment methods all have certain disadvantages: the direct incineration technology has problems such as large investment and complicated pollutant treatment; the blended combustion technology has problems such as raw material preparation, poor operation stability of the feeding system, and difficult separation of debris; landfill will Occupies a large amount of land; comprehensive utilization and processing capacity is limited

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