Combined coal powder storage and supply system

Abstract

The invention relates to a combined coal powder storage and supply system which comprises a coal powder storage tank, a weighing coal powder supply silo, a pulse-free coal powder supply device and a support; the coal powder storage tank is vertically arranged at the top of the support, the weighing coal powder supply silo is vertically arranged on the support below the coal powder storage tank, the pulse-free coal powder supply device is arranged below a discharging opening of the weighing coal powder supply silo, and a flexible connector in the center at the top of a sealing head of the weighing coal powder supply silo is connected with a discharging opening of the coal powder storage tank through a rotary valve; and a fluidization component is arranged on the outer wall of a conical hopper of the coal powder storage tank, and a coal powder anti-arching stirring device is arranged on a hopper of the weighing coal powder supply silo. The invention has compact structure, reasonable layout, automatic feeding and stable supply and can solve the problems frequently existing in the ordinary coal storage silo and the supply silo of birdnesting, bridging, rat hole, channeling, wall build-up, breakage, self combustion, and the like; and the invention can be widely used in any situation where the small and medium-sized industrial coal powder boilers are required.

Description

technical field [0001] The invention relates to a powder material storage and supply system, in particular to a combined pulverized coal storage and supply system. Background technique [0002] At present, traditional industrial boiler systems generally do not have dedicated feed bins, but only traditional coal storage bins. This kind of coal storage bunker only has a single storage function, and problems such as agglomeration, bridging, rat holes, channeling, and spontaneous combustion often occur, which in turn causes poor or uneven coal delivery in the coal supply system, and in severe cases, the coal supply system can be damaged. The coal system will form a coal plug, which will cause equipment failure and make the boiler system unable to work normally. At the same time, the traditional coal storage silo has design flaws in the issue of material level, and the amount of remaining material in the storage silo cannot be clearly understood, which often causes broken powder...

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of feeding device are: long coal powder supply intervals, slow and uneven coal feeding speed, and at the same time, because the feeding pipe is vertically arranged, the coal powder fed into the air pipe will accumulate, which is not conducive to Blowing pulverized coal into the boiler furnace will cause uneven combustion in the boiler furnace

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