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Casting forming water cooled fire grate segment

A technology of water-cooled grate and casting molding, which is applied in the field of incineration, can solve the problems of inapplicability and limited cooling effect of air cooling, and achieve the effects of uniform cooling effect, reduced smoke emission and sufficient residence time

Pending Publication Date: 2018-05-04
SHANGHAI SUS ENVIRONMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the cooling effect of air cooling is limited, and it is not suitable for other waste incineration with high calorific value

Method used

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  • Casting forming water cooled fire grate segment
  • Casting forming water cooled fire grate segment
  • Casting forming water cooled fire grate segment

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] Such as figure 1 , figure 2 and image 3 As shown, the water-cooled grate body 1 is cast, and the internal water chamber 2 is cast. The bottom of the grate is cast with water inlet and outlet, and the water inlet joint 3 and the water outlet joint 4 are welded. The inner water chamber is cast with guide ribs plate 5. During operation, water is supplied by the circulating cooling water system, and the water pipe is connected to the water inlet joint 3 and the water outlet joint 4. The water flows in from the water inlet, passes through the U-shaped internal water cavity 2 in the grate, and flows out from the water outlet, and is heated by heat convection. Water-cooled grate pieces for cooling. The movable beams and fixed beams of the entire grate frame are arranged alternately, and water-cooled grate pieces 102 with thermocouples can be evenly arranged on the fixed grate beams as required, and the rest are standard water-cooled grate pieces 101, such as Figure 4 sh...

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Abstract

The invention relates to the field of combustion, in particular to a water cooled fire grate segment applied to an incinerator grate. A water cooled fire grate segment body is formed through casting,an inner water cavity is casted, a water inlet and a water outlet are casted in the fire grate segment, a water inlet joint and a water outlet joint are welded, and connection with a water cooled pipeis facilitated; a flow guide rib plate is casted in the middle of the inner water cavity. Due to the fact that the water cooled fire grate segment is formed through casting, the adaption to the firegrate segment material is wider, the inner water cavity enables the cooling effect to be optimal, the surface temperature of the fire grate segment is reduced to below 250 DEG C, the service life of the fire grate segment is prolonged by more than five years, the maintaining period is prolonged by above 20%, and the operation cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of incineration, in particular to a water-cooled grate piece applied to the grate of an incinerator. Background technique [0002] Due to the different types of waste, it can be divided into domestic waste, high calorific value domestic waste, industrial waste, medical waste, biomass waste, etc. Among them, the calorific value of domestic waste is low. At present, mechanical grate furnaces have gradually occupied the leading position in domestic waste incineration due to their strong adaptability, reliable operation and high controllability. [0003] The traditional mechanical grate furnace is mainly air-cooled. The primary air is blown into the furnace by the ash hopper under the grate. When the primary air stays at the bottom of the grate, the labyrinth arrangement structure at the bottom of the air-cooled grate serves as a diversion The role is to guide the primary air to cool the surface temperature of the grate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/44
CPCF23G5/44F23H2900/03021F23H2700/009
Inventor 龙吉生焦学军严梦帆白力印晓彬於志华傅崇振陈宇翔黄洁张宏泽
Owner SHANGHAI SUS ENVIRONMENT
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