1.1.1 Technical specification specifies technical requirements for self-roasting carbon brick and its and its seamless lining workshop used in the design of furnace lining of the calcium carbide furnace.
1.1.2 This technical specification is applicable to lining laying of the calcium carbide furnace with self-roasting carbon brick line and steel shell. Small calcium carbide furnace (5000kV.A thereinafter) could use this as reference.
1.1.3 Submerged arc furnaces with self-roasting carbon bricks as furnace linings, such as furnace linings of tantiron furnace and silicon metal furnace could refer to this technical specification.
1.1.4 This technical specification as well as the design requirements and specifications in relevant existing compulsory national standards shall be conformed to.
1 General Principles
1.1 Purpose and application scope
1.2 Relevant standards
2 Terms
3 Furnace Shell
4 Materials
4.1 Acceptance, maintenance and transportation of materials
4.2 Materials commonly used in furnace lining and their standards
4.3 Slurry and materials used in lining laying
5 Construction Requirements
5.1 Onstruction preparation
5.2 Masonry joint requirements
5.3 Requirements of narrow joint paste
5.4 Requirements of wide joint paste
5.5 Requirements for phosphate slurry and phosphate refractory castables
5.6 Masonry construction requirements
5.7 Primary furnace heating
5.8 Requirements of lining laying of the furnace bottom with self-baking carbon bricks
5.9 Requirements for the lining laying of annular self-roasting carbon bricks of the furnace wall
5.10 Requirements for filling of the annular spaces of self-roasting carbon bricks with the filling material
5.11 Inspection during and after lining laying of self-roasting carbon bricks
5.12 Lining laying inspection standard of high alumina bricks and kaolinite refractory bricks
5.13 Inspection requirements of furnace bottom planeness
5.14 Permissible deviations of furnace wall and liquidbath radiuses
5.15 Protection of carbon materials of the furnace bottom
6 Project Acceptance
7 Furnaces Baking
7.1 Furnace baking preparation
7.2 Requirements of furnace baking
7.3 Recovery processing of furnace baking
7.4 Inspection and defect treatment after furnace baking
7.5 Furnace baking record
