Mechanical compensating mechanism of incineration furnace grate

Abstract

The invention relates to a mechanical compensating device for a grate of an incinerator, in particular to a thermal expansion absorption device which avoids the ventilation gap change of the grate of the incinerator due to heat-expansion and cold-contraction. The invention comprises a fixed grate and a movable grate which are arranged crossly and one ends of which are fixed on the incinerator body. The invention is characterized in that the other end of each grate is provided with a sliding end which is used for sliding the grate when in expansion and extraction; and a supporting beam of the fixed grate positioned at the end is provided with a lateral compensating block, a connecting element and a sliding bracket in sequence, wherein, the connecting element comprises flat boards which are vertical to each other and a sliding block which takes the supporting beam of the grate as a guide rail and slides on the supporting beam; the sliding block is provided with a convex heave which can be circularly embedded inside a longitudinally inward groove of a grate sheet; and the sliding bracket is connected on the supporting beam of the fixed grate in a sliding way, thereby ensuring the grate gap of the incinerator to be constant and the wind feeding to be stable. Besides, as the grate sheet is always jointed with the lateral compensating block, the foreign objects are prevented from embedding into so as to avoid the short of burning and the local overheat of the grate, thereby reducing the ordinary maintenance amounts, increasing the burning efficiency and prolonging the service time of the incinerator.

Description

technical field [0001] The invention relates to a thermal expansion absorbing device which can prevent the change of the ventilation gap of the grate caused by the thermal expansion and contraction of the grate of the incinerator, especially a device which can automatically compensate the change of the grate gap caused by the thermal expansion and contraction of the grate. Mechanical compensation device for incinerator grate. Background technique [0002] As we all know, when the incinerator is working, because of the difference in temperature and material between the grate piece and the furnace body structure, the gap between the grate and the furnace body will change, thereby changing the air intake space under the grate to the incineration on the grate. The ventilation gaps between the spaces lead to problems such as uneven ventilation, insufficient incineration, and decreased combustion efficiency, and also increase the difficulty of controlling the air intake volume and...

AI Technical Summary

Problems solved by technology

The disadvantage of this device is: its structure is relatively complicated, especially the design of the support is more difficult

But it also has the following disadvantages: when it is used for incinerating garbage, especially unsorted garbage, it is difficult to avoid debris such as wedges, nails, steel balls, etc. in the garbage, if these debris once Embedding between the grate and the side seal compensation device will cause problems such as combustion short circuit, local overheating of the grate piece, failure of the spring at high temperature, etc., which will directly affect the effect of the compensation device to keep the ventilation gap of the grate constant, and also cause fire grate pieces, Damage to components such as springs, increasing the amount of daily maintenance of the incinerator

Images