Coal mill static radial separator capable of remotely adjusting pulverized coal fineness online

Abstract

The invention discloses a coal mill static radial separator capable of remotely adjusting pulverized coal fineness online. All separator baffles are positioned in a coal mill separator shell, and allthe separator baffles are divided into a plurality of groups, wherein each group of separator baffles corresponds to an electric control system and a baffle adjusting mechanism; each central shaft corresponds to the corresponding separator baffle, a signal source is connected with the input end of a controller, the output end of the controller is connected with the control end of an angular travelactuator, an output shaft of the angular travel actuator is connected with the upper end of the corresponding central shaft, and the central shafts in the same baffle adjusting mechanism are connected through adjusting connecting rods; and the lower ends of all the central shafts are inserted into the coal mill separator shell and the connected with the corresponding separator baffles. Accordingto the separator, the fineness of pulverized coal at an outlet of a coal mill can be remotely adjusted in real time, and the separator is simple in structure, convenient to maintain, low in cost and good in energy-saving effect.

Description

technical field [0001] The invention relates to a static separator for a coal mill, in particular to a static radial separator for a coal mill that can realize online and remote adjustment of coal powder fineness. Background technique [0002] At present, the sources of coal combustion in power plants are complex, and the fuel quality of boilers changes greatly and frequently. During the operation of boilers, the fineness of pulverized coal needs to be adjusted continuously according to changes in coal quality, so that pulverized coal can be burned more completely and boilers can operate more efficiently and economically. Adjust the coal mill separator according to the actual coal quality into the furnace and boiler operating parameters, and change the fineness of pulverized coal at the outlet of the coal mill, which can effectively solve the problems of increased carbon content in fly ash, rise in exhaust gas temperature, and problems caused by changes in coal quality. Boil...

AI Technical Summary

Problems solved by technology

[0003] When it is necessary to adjust the pulverized coal fineness at the outlet of the coal mill, the static separator of the traditional coal mill needs to be manually adjusted on the spot

Due to the large adjustment workload, poor site environment, and jamming of the adjustment baffle, it is impossible to effectively adjust the coal fineness in actual operation.

The dynamic separator can effectively solve the above problems, and real-time adjustment of coal powder fineness can be realized in a remote place, but it also has problems such as complex equipment, high cost, and difficult maintenance, and the dynamic separator uses a motor to drive the rotor to reduce the coal powder. For separation, there is still a certain amount of waste of electricity

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