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grate assembly

An assembly and grate technology, applied in the direction of incinerators, combustion types, combustion methods, etc., can solve the problems of sliding surface wear, fire grate 14 damage, etc.

Active Publication Date: 2020-03-06
EBARA ENVIRONMENTAL PLANT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, the predetermined play for vertically upward displacement of the grate 14 disappears, so the sliding surfaces of the fixed furnace array 5A and the movable furnace array 5B are significantly worn.
In addition, when the grate 14 is fixed, when the movable furnace array 5B slides, when the hard foreign matter 16 bites into the gap between the upper surface of the scraper 15 and the lower surface of the grate 14 in a wedge shape, there is a When the grate 14 is damaged due to upward bending stress

Method used

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Embodiment Construction

[0071] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings described below, the same reference numerals are assigned to the same or corresponding components, and overlapping descriptions will be omitted.

[0072] figure 1 It is an overall view showing a hearth portion of a grate type waste incinerator using the grate structure of the present embodiment. As shown in the figure, the grate type incinerator 1 includes a hearth 1A having a stepped structure as a whole. A multi-stage grate 2 is arranged to form a hearth 1A. The grate 2 has a drying area 2a, a first combustion area 2b, a second combustion area 2c, and a post-combustion area 2d along the conveyance direction of the incineration object.

[0073] The hearth 1A has side grates 4 a (only one side is shown in the figure) at both sides in the width direction, and has a spacer 4 at the center in the width direction. exist figure 1 In the example shown, tw...

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Abstract

The invention provides a fire grate assembly body capable of reducing transverse and upper displacements of a fire grate. The fire grate assembly body comprises the fire grate forming a furnace bed ofa waste incineration furnace, and a support beam for mounting the fire grate. The fire grate is provided with an upper wall part, a front wall part arranged at the front part of the upper wall part,a back wall part arranged at the back part of the upper wall part and a side wall part combined with the upper wall part and the front wall part and extending to the back wall part. The support beam is provided with a front guide part; and the front guide part is provided with a guide concave part for limiting the side wall part of the fire grate. The guide concave part of the support beam is provided with a pair of side surface guide parts for clamping the side surface of the side wall part.

Description

technical field [0001] The present invention relates to grate assemblies. Background technique [0002] Conventionally, a grate-type incinerator is known as an incinerator in a waste treatment facility for detoxifying hazardous substances generated during incineration treatment of waste. The grate type incinerator has a fixed furnace array and a movable furnace array arranged side by side along the width direction of the incinerator. The array of fixed furnaces and the array of movable furnaces are alternately arranged in a stepwise manner along the longitudinal direction of the incinerator (direction in which objects to be incinerated are conveyed). [0003] In recent years, many waste treatment facilities have installed boilers and turbine generators to function as power plants that generate electricity as heat recovery facilities in addition to their functions as incineration. A power plant needs to secure long-term stable power supply, and therefore requires stable lon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/44
Inventor 浦上嘉信冈武裕有原元史田书营张文渊王泰山
Owner EBARA ENVIRONMENTAL PLANT