Reciprocating grate and working method thereof

Abstract

The invention relates to a reciprocating grate and a working method thereof. The reciprocating grate improves the conventional reciprocating grate. In the conventional reciprocating grate, coal is input from one end and slag is output from the other end. However, in the improved reciprocating grate, two opposite grates are driven to move reciprocally by adopting a set of drive mechanism; the coalis input from the middle part of the grate; and the slag is output from the two ends of the grate, so that a raw coal bucket can be saved. A fire can be ignited in the stage of feeding the coal into the grate; and the surface area of the grate and a boiler body structure can be effectively utilized, so that the load capacity of the reciprocating grate can be increased, cost can be reduced and occupancy area can be saved.

Description

technical field [0001] The invention relates to raw coal combustion equipment, in particular to a reciprocating mechanical fire grate. Background technique [0002] At present, industrial boilers with large capacity mostly use mechanical grates such as reciprocating grates with mature technology. The reciprocating grate is low in cost, easy to maintain, and can burn coal with poor characteristics. However, since the grate pieces of the reciprocating grate always work in the high temperature area, the failure rate is high, and the load capacity cannot be made too large. [0003] Restricted by the design, floor area and process conditions of the supporting boiler, the width of the reciprocating grate corresponding to a certain load capacity is generally within a certain range. Under the condition that other conditions remain unchanged, the greater the load capacity of the reciprocating grate, the greater the relative speed of the motion of the grate, and the thicker the thick...

AI Technical Summary

Problems solved by technology

Thereby bringing great difficulty to the design of the reciprocating grate with poor working conditions

In addition, the coal seam on the grate is too thick, which also delays the combustion of the lower coal seam, increases the loss of coal leakage, increases the ventilation resistance of the coal seam, increases the carbon content of the slag, and reduces the combustion efficiency.

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