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Manufacture and installation method of energy-saving Maerz lime kiln shell

An installation method and Maerz technology, applied in the field of manufacturing and installation of Maerz lime kiln shells, can solve the problems of low installation cost and achieve the effects of low installation cost, safe and reliable construction, and flexible selection

Active Publication Date: 2020-05-01
CHINA CHEM ENG SECOND CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention solves the problem of ensuring consistent concentricity between each section of the kiln body during installation, and the installation cost of the invention is low

Method used

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  • Manufacture and installation method of energy-saving Maerz lime kiln shell
  • Manufacture and installation method of energy-saving Maerz lime kiln shell
  • Manufacture and installation method of energy-saving Maerz lime kiln shell

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Embodiment Construction

[0032] In the 1 million tons / year calcium carbide project of Zhongtai Chemical in Fukang City, Xinjiang, the first phase of 600,000 tons / year and the second phase of 300,000 tons / year lime kiln project, this production and installation method was used to complete the production and installation of 5 lime kilns.

[0033] The prefabrication of the steel structure of the kiln shell in each section requires rolling and welding of steel plates according to the approved layout diagram, and non-destructive testing of welds at the same time. After confirming that the welding quality is qualified, proceed to the next process.

[0034] The specific implementation steps are as follows:

[0035] (1) In the prefabrication stage, use the truss car and the three-roll plate rolling machine to roll each steel plate of the kiln shell according to the calculated arc.

[0036] (2) Positioner design: The positioner is an auxiliary tool used to control the radian of each belt plate and the overall ...

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Abstract

A mounting method of an energy-saving Maerz lime kiln housing is characterized by comprising: (1) prefabricating 48 paired positioners, wherein each paired positioner is a non-equilateral steel angle100 mm in length, and a bolt hole 20 mm in diameter is drilled in a position 33 mm away from an end of the long side of the steel angle; (2) welding short sides of the prefabricated paired positionersto a prefabricating platform, and mounting bolts 20 mm in diameter into the bolt holes; (3) pre-assembling a cone; (4) pre-assembling a straight barrel. The mounting method of the invention has the advantages that the construction cost is low and construction quality is easy to control; the mounting method has good construction safety and reliability. Compared with other kiln construction techniques, the method of the invention has the advantages that small space is used, construction machinery selection is flexible, and the size of a kiln body is easy to precisely control.

Description

technical field [0001] The invention belongs to industries such as iron and steel, chemical industry, electric power and calcium carbide, and relates to a construction method, in particular to a method for making and installing a Maerz lime kiln shell. Background technique [0002] Xinjiang Zhongtai Fukang City Zhongtai Chemical 1 million tons / year calcium carbide project Phase I 600,000 tons / year, Phase II 300,000 tons / year lime kiln project. This project includes 3 lime kilns in the first phase and 2 lime kilns in the second phase. It is a Maerz lime kiln developed by Swiss Nymphenburg Company. [0003] Maerz lime kiln with a production capacity of 600t / d, each lime kiln is a vertical kiln composed of two kiln barrels connected by the first section and the second section of passage, each unit weighs 185 tons (excluding the platform structure), and the furnace shell Some of them are made of Q345E low-alloy steel, which has good low-temperature impact resistance. The diame...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B2/10
CPCC04B2/10
Inventor 蔡国春何永胜陈强张永胜路慧茹阴鹏
Owner CHINA CHEM ENG SECOND CONSTR
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