Ball type hot blast stove dismantling method

Abstract

The invention discloses a ball type hot blast stove dismantling method, which is a destructive dismantling method and comprises the steps that a furnace shell steel structure of a hot blast stove, a hot blast stove body lining material and steel platform accessory equipment are all destructively dismantled. The method comprises the following steps that S1, early-stage dismantling work is conducted; S2, a combustor is dismantled; S3, a hot air header pipe platform is dismantled; S4, a large vault is dismantled; S5, an upper-layer ball loading platform is dismantled; S6, a heat storage chamber is dismantled; S7, a lower-layer ball loading platform is dismantled; S8, a lower cone, a grate and a cold air chamber are dismantled; and S9, waste is cleared away. The dismantling method is high in efficiency, low in cost, high in safety and convenient to use and popularize.

Description

technical field

[0001] The invention relates to a method for dismantling an industrial furnace, in particular to a method for dismantling a spherical hot blast stove. Background technique

[0002] As a supporting facility for blast furnaces, hot blast stoves generally have 3 to 4 hot blast stoves with one blast furnace, so the hot blast stoves are concentrated near the blast furnace, and the distance between each hot blast stove is relatively small. In the actual construction and dismantling of the hot blast stove, the top height of the burner on the upper part of the hot blast stove is 30-50m, and only the crane arm with a large tonnage (300T, 400T, etc.) is long enough to hook the burner, and according to the production process of the hot blast stove, There are three layers of continuous steel platforms on the hot blast stove. From top to bottom is the hot blast main pipe platform and two layers of ball loading platforms. Each layer of the hot blast stove has various pipes...

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