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Repair method of the prefabricated module at the bottom of the suspended cylinder of Maerz lime kiln

A repair method and technology of hanging cylinders, applied in the direction of lining repair, furnace control devices, furnaces, etc., can solve the problems of hanging refractory material falling off the outer wall of the hanging cylinder, unsatisfactory use effect, and falling off of prefabricated modules, so as to increase thermal shock stability, The effect of increasing strength and avoiding production stop loss

Active Publication Date: 2021-11-19
BAOTOU IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, Baotou Steel has three wheat kilns with a daily output of 600 tons of hanging cylinder structure. The bottom of the hanging cylinder adopts imported prefabricated module structure, but the actual use effect is not ideal. After one year of use, the prefabricated module will fall off and cause the outer wall of the hanging cylinder The refractory fell off and had to stop the kiln for repair
There is currently no domestic production unit for the prefabricated module of the suspension cylinder. If the prefabricated module is replaced, it can only be imported from abroad; not only the purchase cycle is long, but also the price is expensive, and the use effect is not good

Method used

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  • Repair method of the prefabricated module at the bottom of the suspended cylinder of Maerz lime kiln
  • Repair method of the prefabricated module at the bottom of the suspended cylinder of Maerz lime kiln
  • Repair method of the prefabricated module at the bottom of the suspended cylinder of Maerz lime kiln

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Embodiment 1

[0038] This embodiment provides a method for repairing the prefabricated module at the bottom of the hanging cylinder of the Maerz lime kiln, wherein the prefabricated module at the bottom of the hanging cylinder of the Maerz lime kiln is a prefabricated module imported from abroad, and there are 52 pieces in total. The repair method provided in this embodiment In the first step, 52 prefabricated modules are divided into 13 unit blocks according to 4 prefabricated modules as a unit block, such as figure 1 As shown, the 13 unit blocks are respectively named as unit block 1, unit block 2, unit block 3, unit block 4, unit block 5, unit block 6, unit block 7, unit block 8, unit block 9, and unit block 10 , unit plate 11, unit plate 12, unit plate 13; the repair method that this embodiment provides specifically comprises the following steps:

[0039] 1) Remove the imported prefabricated modules of the damaged unit plates 2, 4, 6, 8, 10 and 12 at the bottom of the suspension cylinde...

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Abstract

The invention discloses a method for repairing a prefabricated module at the bottom of a hanging cylinder of a Maerz lime kiln, which belongs to the field of repairing refractory materials of a kiln. The repair method provided converts all materials into domestic materials, and the material procurement is convenient and cheap, which reduces the manufacturing cost; 52 prefabricated modules per chamber are reduced to 13, reducing the gap between prefabricated modules, and at the same time, it adopts on-site pouring The model avoids delays in the construction period due to the long purchase cycle of foreign purchases; the design structure is more reasonable, which prolongs the service life of the prefabricated modules; the damaged prefabricated modules can also be partially recast, saving installation and disassembly costs.

Description

technical field [0001] The invention belongs to the field of kiln refractory repair, and in particular relates to a repair method for a prefabricated module at the bottom of a hanging cylinder of a Maerz lime kiln. Background technique [0002] At present, Baotou Steel has three wheat kilns with a daily output of 600 tons of hanging cylinder structure. The bottom of the hanging cylinder adopts the imported prefabricated module structure, but the actual use effect is not ideal. After one year of use, the prefabricated module will fall off and cause the outer wall of the hanging cylinder The refractory material fell off and had to stop the kiln for repair. There is currently no domestic production unit for the prefabricated module of the suspension cylinder. If the prefabricated module is replaced, it can only be imported from abroad; not only the purchase cycle is long, but also the price is expensive, and the use effect is not good. Contents of the invention [0003] Aimi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D1/16F27D19/00
CPCF27D1/16F27D19/00F27D2001/161F27D2019/0003
Inventor 张楼清赵鸣王俊刚李强宋界勇孙婷婷
Owner BAOTOU IRON & STEEL GRP
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