CN2328895Y - New fire grate for boiler - Google Patents

Abstract

The utility model relates to a new fire grate for boilers. The utility model is composed of an upper fire grate and a lower fire grate. The structure between the upper fire grate and the lower fire grate, and the structure of the lower fire grate are same with the prior art. The upper fire grate is composed of solid circular fire bars or solid rhombic fire bars. The fire bars are in horizontal and parallel arrangement. The two end heads of the fire bars are cast. The distance between the fire bars is correspondingly enlarged. Compared with the prior art, the utility model has the advantages that pre-heating and dry distillation of the coal, smoke elimination, dust removal, combustion area enlargement, good ventilation, and sufficient coal combustion. The coal on the upper fire grate and the lower fire grate can be combusted. The utility model is an ideal double layer fire grate for boilers.

Description

A kind of New-type boiler fire grate

The utility model relates to the fire grate technical field.

The present boiler double-layer grate that generally uses, upper grate is a water cooling tube, the gap is much smaller than the diameter of pipe between each root pipe, and its shortcoming is that water cooling tube can not make coal preheating destructive distillation, smoke abatement and dust control, gap between each root pipe is much smaller than the diameter of pipe, the gap is too small, causes the coal combustion area of upper grate to draw badly for a short time, and it is insufficient to burn, therefore, the existing double-grate boiler lower floor of only burning in actual applications.

The purpose of this utility model provides a kind of New-type boiler fire grate, can not make coal preheating destructive distillation, smoke abatement and dust control to solve existing double storied boiler fire grate water cooling tube, and each root ligament is too small, burning area is little, draw badly, coal combustion is insufficient, the deficiency of the lower floor of only burning.

The technical solution of the utility model is: the upper and lower interlayer structure of its original double-layer grate, lower floor's fire grate structure are identical with prior art, upper grate is made up of solid circles fire bars or solid diamond fire bars, solid circles fire bars diameter is 16-20mm, solid diamond fire bars lateral dimension is 16-20mm, the fire bars horizontal parallel is arranged, it is solid that casting is closed at the fire bars two ends, and solid circles fire bars, solid diamond fire bars spacing are 23-25mm.

The utility model compared with the prior art, because upper grate is designed to solid circles fire bars or solid diamond fire bars, the fire bars spacing increases relatively, its advantage is to make coal preheating destructive distillation, smoke abatement and dust control, burning area increases, ventilate, coal combustion is abundant, can burn at the coal of the upper and lower layer of fire grate.

Description of drawings:

Fig. 1 is a kind of New-type boiler fire grate sectional view

Fig. 2 is a kind of New-type boiler upper grate structure chart

Provide the utility model most preferred embodiment below in conjunction with accompanying drawing: it is made up of upper grate and lower floor's fire grate, structure between upper and lower layer fire grate, lower floor's fire grate structure are identical with prior art with material, upper grate is that heat-resisting cast iron is formed by solid circles fire bars 1 material, solid circles fire bars 1 diameter is 16-20mm, fire bars 1 horizontal parallel is arranged, the casting of fire bars 1 two ends is solid, and solid circles fire bars 1 spacing is 23-25mm.

Claims (2)

1, a kind of New-type boiler fire grate is made up of upper and lower two floor kiln row, and it is characterized in that: upper grate is made up of the solid circles fire bars, and the fire bars diameter is 16-20mm, and the fire bars horizontal parallel is arranged, and the casting of fire bars two ends is solid, and the fire bars spacing is 23-25mm.

2, a kind of according to claim 1 New-type boiler fire grate is characterized in that: fire bars is the solid diamond fire bars.

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