Water-cooling gate for high-temperature flue

Abstract

The invention relates to a water-cooling gate for a high-temperature flue. The water-cooling gate comprises a gate plate, a shell and a linkage assembly, a groove with the same shape as the gate plate is formed in a box body, a heat preservation layer is embedded in the inner wall of a cavity of the box body, and when the gate is closed, the gate plate makes contact with the heat preservation layer. And a slag removal opening is formed in the side wall of the box body and is used for removing castable falling off from the gate plate. An upper box body is arranged above the box body, a frame is arranged in the upper box body, a sealing gasket used for being sealed with the box body is arranged at the bottom of the frame, the outer edge of the flashboard is poured into a concave shape through castables, anchoring parts are arranged in the castables, a cooling water pipe is arranged in the concave castables, and an inlet and an outlet of the cooling water pipe are connected with a corrugated pipe through a connecting flange. The frame is welded with the cooling water pipe, a support is arranged on the top of the upper box body, an I-shaped steel rail is arranged on the inner side of the support, a guide wheel is arranged on the inner side of the I-shaped steel rail, and a shaft of the guide wheel is fixed to the frame. Thermal stress generated by high-temperature flue gas to the gate is effectively reduced through water cooling, the gate is not prone to damage and long in service life, and the cost for repairing and replacing the gate is reduced.

Description

technical field [0001] The invention relates to a gate, in particular to various high-temperature flue water-cooled gates for secondary utilization of waste heat of boilers, kilns, and blast furnaces in industries such as metallurgy, mining, chemical industry, and electric power, and treatment of flue gas and waste gas. Background technique [0002] High-temperature flue gates are mainly used in metallurgy, mining, chemical industry, electric power and other industries for secondary utilization of waste heat from boilers, kilns and blast furnaces, as well as various high-temperature pipelines for flue gas and waste gas treatment. They are the main equipment for balancing or cutting off high-temperature gases. . Due to the simple use of flame-retardant and heat-resistant heat-insulating materials, ordinary high-temperature flue gates have low durability, are easy to wear, have a short life, and the gate surface is prone to cracking or even serious deformation, which brings se...

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Problems solved by technology

[0003] In order to solve the above problems, a high-temperature flue water-cooled gate is provided. The purpose is that in a high-temperature environment, the water-cooled gate is subjected to water cooling, the temperature is low, the thermal shock is small, and the surface is easy to crack or even deformed, and the service life is short and easy. damage problem

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