Coal and mud distributor for circulating fluidized bed boiler

Abstract

The present invention relates to a coal slurry distributor for circulating fluidized-bed boiler. Its key technique lies in that in a cylindrical coal slurry chamber at least two coal slurry outlets and one coal slurry inlet are set; the coal slurry outlets are uniformly distributed on the cylinder wall of one end of cylindrical coal slurry chamber; the coal slurry inlet is set on the cylinder wall of another end of said cylindrical coal slurry chamber; the coal slurry distribution rotating core is set in the cylindrical coal slurry chamber, its outer end is connected with a drive device by means of one rotating shaft, on the coal slurry distribution rotating core a ball socket is set, said coal slurry distribution rotating core can be continuously rotated, so that it can uniformly coal slurry to all the coal slurry outlets.

Description

1. Technical field [0001] The invention relates to an accessory equipment for a circulating fluidized bed boiler. 2. Background technology [0002] Coal slime distributor is the main equipment of some circulating fluidized bed boilers that use coal slime as fuel. The technology of direct combustion of coal slime on circulating fluidized bed boilers has only been three to four years, and there is no finalized slime distributor product, so the sealing performance of the coal slime distributor, the uniformity of distribution, and the distribution The use cycle and whether it is easy to overhaul when there is a problem, these problems directly affect the use effect of the dispenser. Currently used slime distributors, one is that the slime is sent to the top of the boiler by the hydraulic pump through the pipeline. There are multiple slime inlets on the top of the boiler, each inlet is equipped with a distributor, and a hydraulic cylinder is installed on the upper part of the di...

AI Technical Summary

Problems solved by technology

The technology of direct combustion of coal slime on circulating fluidized bed boilers has only been three to four years, and there is no finalized slime distributor product, so the sealing performance of the coal slime distributor, the uniformity of distribution, and the distribution The use cycle and whether it is easy to overhaul when there is a problem, these problems directly affect the use effect of the dispenser

Currently used slime distributors, one is that the slime is sent to the top of the boiler by the hydraulic pump through the pipeline. There are multiple slime inlets on the top of the boiler, each inlet is equipped with a distributor, and a hydraulic cylinder is installed on the upper part of the distributor. , the control of the distributor is all centrally controlled by the hydraulic station installed on the top of the boiler, and the distributor is intermittently opened and closed one by one to send the slime to each slime port. There is a problem and it cannot run normally; another way to transport the slime is to use a slime distributor, which is controlled by a hydraulic station and a hydraulic cylinder, for two slime inlets to drop the slime, but the slime distributor of this kind There are often problems with the sealing, resulting in frequent single-port slime, and the amount of slime used cannot meet the normal requirements, and it also affects the fluidization quality of the boiler and the content of fly ash combustibles

It can be said that there is no feasible and effective slime distributor at present

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