Anti-blocking cylindrical raw coal bunker and discharging method thereof

Abstract

The invention relates to a cylindrical anti-blocking raw coal bunker, comprising: a bin body, which is cylindrical and placed vertically; a material inlet, which is located at the center of the top of the raw coal bunker; a bin bottom, whose center is a discharge port ; the inner cone, which is located inside the warehouse body, the central axis of the inner cone coincides with the central axis of the warehouse body; the driving device, which is located outside the bottom of the warehouse, is connected to the inner cone through the rotating shaft The bottom surface is connected; the unloading arm is located at the inner bottom of the warehouse body, and the bottom of the unloading arm is attached to the bottom of the warehouse, and one end of the unloading arm is installed on the rotating shaft. The other end of the unloading arm is in contact with the inner wall of the bin body, and the rotating shaft drives the unloading arm to rotate around the axis; the vibration motor is arranged on the outer side of the bin bottom. The invention also relates to a discharging method of a cylindrical anti-blocking raw coal bunker. The cylindrical anti-blocking raw coal bunker of the invention solves the coal blocking phenomenon of the raw coal bunker, and saves a lot of engineering cost.

Description

technical field [0001] The invention relates to a cylindrical anti-blocking raw coal bunker and a discharging method thereof. Background technique [0002] At present, the raw coal bunker used in the power plant is an important loading and storage link of the pulverization system of the thermal power plant. The continuity of its operation is directly related to the combustion conditions of the furnace, which affects the safe operation of the unit. In order to increase the fluidity of the raw coal scuttle in the current thermal power plant, the shape below the raw coal scuttle is mostly in the form of an inverted cone or a hyperbolic conical bin. Restricted by the entrance of the weighing belt coal feeder or scraper coal feeder, the outlet of the raw coal hopper is small, and the coal will creep downward by its own weight, and the outlet is easy to be blocked; especially in rainy days and low temperature conditions, The coal blocking phenomenon is even more serious. After t...

AI Technical Summary

Problems solved by technology

Restricted by the entrance of the weighing belt coal feeder or scraper coal feeder, the outlet of the raw coal hopper is small, and the coal will creep downwards by its own weight, and the outlet is easy to block; especially in rainy days and low temperatures, Coal congestion is even more serious

After the raw coal hopper has been used for a long time, the phenomenon of "natural coal hanging" appears in a certain range above and below the discharge port, which makes the effective size of the discharge port of the raw coal hopper smaller and causes the coal blocking phenomenon to occur more frequently

Moreover, the raw coal scuttle has poor adaptability to coal types. If the moisture content of the coal is high, when the outdoor temperature is low in winter and the frozen coal enters the coal scuttle, it is easy to slow frost and expand, the thickness of the coal is uneven, and it is easy to stick. Blockage occurs more frequently, and even forced to shut down, causing great losses to the power plant

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