Integral hot blast stove dismounting method
A hot blast stove and integrated technology, which is applied in the field of integral dismantling of hot blast stoves, can solve the problems of not allowing blasting demolition, large vibration, and high cost
Active Publication Date: 2019-09-17
MCC5 GROUP CORP SHANGHAI
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Problems solved by technology
[0002] Since the weight of the hot blast stove and its internal refractory material reaches more than 2,000 tons, the construction area is close to the residential area and blasting demolition is not allowed; if mechanical hoisting is used for demolition, the construction efficiency is too low, the cost is high, the safety is low, and the noise and vibration are large. Great impact on residential areas
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[0022] The structure of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not intended as a limitation of the present invention.
[0023] The present invention is carried out by mechanical cooperation. First, determine the overall dumping direction of the hot blast stove. According to the site conditions, in order to prevent deviation during the dumping process, the furnace body and furnace wall are firstly cut and taken out step by step in the dumping direction, and then cut off step by step. The internal refractories within the range of the furnace wall are gradually removed from the furnace body, and the back of the dumping side is opened, and the overall dumping is realized by means of wire rope traction.
[0024] Such as Figure 1 to Figure 5 As shown, the embodiment of the present invention discloses a method for integral dismantling of a hot blast stove, comprising the following steps:...
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The embodiment of the invention discloses an integral hot blast stove dismounting method. The integral hot blast stove dismounting method comprises the following steps that a steel wire rope is bundled at the reducing position of a hot blast stove; a notch is cut in a stove body through a gas cutting method, and then a crusher is used for completely breaking down a refractory brick wall; construction personnel conducts horizontal cutting at the position 2 m away from the ground in the toppling direction back position, and the notch is in an arc shape; after pretreatment is finished, a hoist system is used on the north side of a material table for dragging the hot blast stove through the steel wire rope on a north side vestibule stand column, accordingly, the hot blast stove topples over towards the north side material table, and the hot blast stove is shelved on a train material table after toppling over; after the crusher crushes the rest of 1 m refractory materials on an inclined opening in the northeast side, pausing is conducted, cutting personnel on the back of the hot blast stove is arranged to conduct notch treatment, after treatment is finished, the cutting personnel immediately retreats to the outside of the guard range, the crusher stands on the southeast side to break down the rest of part, and dismounting is finished. By means of the integral hot blast stove dismounting method, the construction efficiency is improved, cost is low, safety is high, noise is low, and influences on residential areas from vibration are avoided.
Description
technical field [0001] The invention relates to the field of blast furnace maintenance, in particular to a method for integrally dismantling a hot blast stove. Background technique [0002] Since the weight of the hot blast stove and its internal refractory material reaches more than 2,000 tons, the construction area is close to the residential area and blasting demolition is not allowed; if mechanical hoisting is used for demolition, the construction efficiency is too low, the cost is high, the safety is low, and the noise and vibration are large. have a greater impact on residential areas. Contents of the invention [0003] The purpose of the present invention is to propose a method for dismantling the hot blast stove as a whole, so as to improve construction efficiency, ensure construction safety and reduce construction cost. [0004] The embodiment of the present invention discloses a method for integral dismantling of a hot blast stove, which includes the following s...
Claims
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IPC IPC(8): C21B9/00
CPCC21B9/00
Inventor 黄建军
Owner MCC5 GROUP CORP SHANGHAI