A uniform and continuous feeding device for waste incineration fly ash particles

Abstract

The invention provides a uniform continuous feeding device for garbage incineration fly ash particles. The uniform continuous feeding device comprises a fluidized bed feeder. The fluidized bed feederis provided with a wind inlet and a material storing bin. A tail outlet of the fluidized bed feeder is connected with an inlet of a cyclone material separator. The upper portion of the cyclone material separator is connected to the upper portion of a high-temperature melting furnace through a wind pipe. A solid particle collector is arranged on the bottom of the cyclone material separator. The solid particle collector is connected with a preheating furnace. The connecting position is arranged on the upper portion of the preheating furnace. The preheating furnace is located above the high-temperature melting furnace and communicates with the high-temperature melting furnace. An oxygen inlet and a molten slag outlet are formed in the bottom of the high-temperature melting furnace. Accordingto the uniform continuous feeding device, by means of the coordinative effect of the fluidized bed feeder and the cyclone material separator, continuous uniform feeding of materials is achieved.

Description

technical field [0001] The invention relates to the technical field of waste incineration fly ash conveying equipment, in particular to a uniform and continuous feeding device for waste incineration fly ash particles. Background technique [0002] During the incineration process of garbage, secondary pollutants of gas, solid and liquid will be produced. Gaseous pollutants include components such as particulate pollutants, acid gases, heavy metals, dioxins and furans, which are highly toxic when incinerated inadequately. After the particulate matter is captured by the dust collector, it exists in the form of fly ash. Most of the volatile heavy metals and dioxins are adsorbed on the incineration fly ash. The waste incineration fly ash is listed as hazardous waste. The amount of fly ash produced accounts for about 10% of the original volume. How to realize the comprehensive utilization of waste incineration fly ash resources is a very important and urgent problem to be solved....

AI Technical Summary

Problems solved by technology

[0004] At present, belt conveyors or screw conveyors are generally used as the feeding device for waste incineration fly ash. However, due to the special properties of fly ash materials, the belt conveyor feeds unevenly, and the screw conveyor is difficult to transport over long distances; at the same time, due to the preheating The temperature in the furnace is high, and the flue gas will often flow back to the belt or silo, causing a fire risk, and the belt conveyor and screw conveyor are semi-open material conveying devices, and the material will leak and waste during the feeding process and other problems, the working environment is poor

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