An unburned pulverized coal recovery device for a power plant

Abstract

The invention discloses an unburned pulverized coal recovery device used in a power plant, which comprises a recovery box, the four corners of the bottom of the recovery box are fixedly installed with feet, the inside of the recovery box is welded with partitions, and the partitions hold the recovery box It is divided into a pulverized coal recovery cavity and a waste heat recovery cavity, and the pulverized coal recovery cavity is located below the waste heat recovery cavity. A filter mechanism is fixedly installed at the lower end of the pulverized coal recovery cavity. The filter mechanism includes a fixed plate and a frame, and the fixed plate It is fixedly installed on the inner wall surface of the recovery box; through the set coal powder recovery chamber, the unburned coal powder can be collected to prevent the unburned coal powder from being discharged into the ash bin together with the fly ash, and the vibration motor will work It can avoid fly ash and coal powder from clogging the filter plate, ensure the normal filtration of the filter plate, and effectively improve the work efficiency. Through the set waste heat recovery chamber, it can realize the recovery of waste heat in unburned coal powder and fly ash Recycling can improve the recycling effect of unburned pulverized coal.

Description

technical field [0001] The invention relates to the technical field of power plants, in particular to an unburned pulverized coal recovery device for power plants. Background technique [0002] A power plant, also known as a power station, is a factory that converts various primary energy sources stored in nature into electrical energy (secondary energy). Present power plants have a variety of ways to generate electricity: those that rely on thermal power are called thermal power plants, those that rely on hydroelectric power are called hydropower plants, and some power plants that rely on solar (photovoltaic) and wind and tidal power. And nuclear power plants using nuclear fuel as energy have played an increasing role in many countries in the world. Thermal power plants are referred to as thermal power plants, which are factories that use combustibles (such as coal) as fuel to produce electric energy. Its basic production process is: when the fuel is burned, the water is h...

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Problems solved by technology

[0004] However, at present, the unburned pulverized coal and fly ash collected by the electric precipitator in the thermal power plant at the initial stage of boiler startup are directly transported to the ash storage, and then unloaded from the ash storage and sent to cement plants, mixing stations and other places for comprehensive utilization , the unburned pulverized coal in the early stage of boiler startup is also directly lost because it is not recycled, and the waste heat contained in fly ash and pulverized coal is also difficult to recycle, resulting in a waste of resources

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