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Slag removing door in high-temperature area of hearth

A high-temperature zone and furnace technology, applied in the field of slag cleaning door, can solve problems such as damage to the slag cleaning door, and achieve the effects of simplified structure, simple structure and convenient adjustment of pressing force

Pending Publication Date: 2018-02-02
SUZHOU HAILU HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the current use of the waste heat boiler, the user found that the slag cleaning door in the high temperature zone of the furnace is often damaged due to excessive temperature

Method used

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  • Slag removing door in high-temperature area of hearth
  • Slag removing door in high-temperature area of hearth

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Experimental program
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Embodiment Construction

[0016] Such as figure 1 , figure 2 As shown, the slag removal door in the high temperature zone of the furnace includes: a door frame 1, and a door panel 2 is fixedly connected to the unfired side of the door frame 1, and the door panel 2 is a steel plate. A number of heat exchange tubes 31 are arranged on the fire-facing side of the door frame 1. The heat exchange tubes 31 form a water-cooled wall 3 on the door frame 1, and the fire-resistant protection described in the fire-resistant protective layer 4 is built on the fire-facing side of the water-cooled wall 3. Layer 4 is refractory concrete, and the thickness of the refractory concrete is 40mm-60mm, preferably 50mm. In order to improve the bite force between the refractory concrete and the water-cooled wall 3 , in this embodiment, a number of grasping nails 32 are arranged on the fire-facing surface of the water-cooled wall 3 , and the grasping nails 32 are buried in the refractory concrete.

[0017] The upper end of ...

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PUM

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Abstract

The invention discloses a slag removing door in a high-temperature area of a hearth. The slag removing door comprises a door framework, a door plate is fixedly connected to the fire-back side of the door framework, a plurality of heat exchange pipes are arranged on the fire-facing side of the door framework, the heat exchange pipes form a water cooling wall on the door framework, a fire-resistingprotection layer is burnt and constructed on the side of the fire-facing face of the water cooling wall, the upper end of the door framework is fixedly connected to a rotating shaft, the rotating shaft is movably supported in a supporting sleeve, the supporting sleeve is fixedly connected with the hearth, the rotating shaft is further provided with a compression mechanism, and the slag removing door can be tightly compressed and closed to a slag removing port through the compression mechanism. The slag removing door has the beneficial effects that the temperature of the whole slag removing door can be effectively reduced, and therefore the slag removing door can be effectively prevented from being damaged due to excess temperature.

Description

technical field [0001] The invention relates to the technical field of waste heat boilers, in particular to a slag cleaning door. Background technique [0002] The waste heat boiler is a common equipment in the metal smelting industry. The waste heat boiler can make full use of the heat energy of the high-temperature flue gas generated in the smelting process. The high-temperature flue gas produced in the smelting process has the characteristics of large dust content, strong cohesiveness, strong corrosion, and large fluctuations. The flue dust in the high-temperature flue gas is in a molten or semi-molten state in the high-temperature zone of the furnace. Once the soot in the high-temperature flue gas is attached to the water-cooled wall, it will become coke after being cooled by the water-cooled wall. The coke attached to the water wall cannot be removed by the rapping of the rapping device, and it will accumulate over time, which will seriously affect the heat exchange ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23M7/00F23M7/04F23J3/00
CPCF23J3/00F23M7/00F23M7/04
Inventor 蒋东徐建新许科
Owner SUZHOU HAILU HEAVY IND