Manufacturing and mounting methods of energy-saving Maerz lime kiln housing

An installation method and Maerz technology, applied in the field of energy-saving Maerz lime kiln shell production and installation, can solve the problem of low installation cost and achieve low installation cost, flexible selection, good social and economic benefits Effect

Active Publication Date: 2018-04-24
CHINA CHEM ENG SECOND CONSTR
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  • Abstract
  • Description
  • Claims
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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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  • Manufacturing and mounting methods of energy-saving Maerz lime kiln housing
  • Manufacturing and mounting methods of energy-saving Maerz lime kiln housing
  • Manufacturing and mounting methods of energy-saving Maerz lime kiln housing

Examples

Experimental program
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Effect test

Embodiment

[0033] In the first phase of 600,000 tons / year and 300,000 tons / year lime kiln project of Zhongtai Chemical's 1 million tons / year calcium carbide project in Fukang City, Xinjiang, this production and installation method was used to complete the production and installation of 5 lime kilns.

[0034] The prefabrication of the steel structure of each section of the kiln shell requires the rolling and welding of the steel plate according to the approved layout drawing, and the non-destructive testing of the weld seam at the same time. After the welding quality is determined to be qualified, the next process is carried out.

[0035] The specific implementation steps are as follows:

[0036] (1) In the prefabrication stage, use the truss car and the three-roller plate rolling machine to roll each steel plate of the kiln shell according to the calculated arc.

[0037] (2) Design of positioning parts: positioning parts are auxiliary tools used to control the arc of each strip and the overall di...

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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 the industries of iron and steel, chemical industry, electric power, calcium carbide, etc., and relates to a construction method, in particular to an energy-saving Maerz lime kiln shell production and installation method. Background technique [0002] Xinjiang Zhongtai Chemical's 1 million tons / year calcium carbide project in the first phase of 600,000 tons / year, and the second phase of the 300,000 tons / year lime kiln project. The project includes 3 lime kilns in the first phase and 2 lime kilns in the second phase. It is an energy-saving Maerz lime kiln developed by the Swiss company Nüfenberg. [0003] Energy-saving Maerz lime kiln with a production capacity of 600t / d. Each lime kiln is a shaft kiln composed of two kiln barrels connected in the first section and the second section of the passage, with a single weight of 185 tons (excluding platform structure). The furnace shell part is made of Q345E low alloy steel, which has good ...

Claims

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Application Information

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Patent Type & Authority Applications(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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