Unlock instant, AI-driven research and patent intelligence for your innovation.

Industrial furnace

An industrial and circumferential technology, applied in furnaces, furnace linings, vertical furnaces, etc., can solve problems such as cracking of formed bricks, loose connection structure of formed bricks, and damage of enlarged connection of formed bricks.

Inactive Publication Date: 2009-04-29
MAERZ OFENBAU
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As these are not produced uniformly, stresses are created which loosen the joint structure of the shaped bricks until many of the shaped bricks break
On the other hand, when the unit cools down after the shutdown, cracks are formed due to the phenomenon of cold shrinkage, and the cracks formed are filled with dust, so when the kiln is heated again later, the above-mentioned effects are aggravated and increased. Damage to formed brick connections

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Industrial furnace
  • Industrial furnace
  • Industrial furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] As can be understood from the proven detailed description of a shaft kiln built in the manner of Maerz, each of two or more parallel kiln shafts 1 has an annular channel 2 through which the combustible gas The flow in the direction of the arrow 3 into the annular channel 2 enters a second kiln shaft, not shown, which operates in regenerative mode. Thus, high-temperature gas whose temperature reaches 1000° C. when burning lime circulates in the cylindrical inner wall 4 which delimits the annular channel 2 on the inside.

[0012] The suspended arrangement of the inner wall 4 shown as an exemplary embodiment is provided with a metallic inner support layer 5 with cooling channels 6 between which the gas flows. The bottom end of the inner supporting layer 5 is provided with a fixer 7 for fixing a bottom thrust ring 8 injected with refractory concrete. The inner support layer 5 is protected on both sides by insulating layers 9 , 10 . The outer shell of the cylindrical inner...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A refractory lining, particularly for a cylindrical kiln, is formed of furnace bricks (11,12), laid to leave compensation gaps (15) filled with pour-cast fire resistant cement (20,21) and containing central, radial expansion gaps (19), which may be labyrinth form and / or insulation filled. Metal anchor-forks (22, 23), attached to a ducted metal carrier ring (5, 6) are embedded in the cement.

Description

technical field [0001] The invention relates to an industrial kiln having a multilayer inner wall curved in the circumferential direction, in which at least the convex kiln lining is provided with engaging refractory shaped bricks. Background technique [0002] Various kiln designs, such as the annular shaft kiln built by Mearz or the parallel vertical regenerative kiln, comprise an annular kiln zone bounded inwardly by an inner wall supported or suspended at the bottom. When the inner wall comes into contact with the combustible gas, it heats up and the circumferentially surrounding convex outer layer expands so that the outer shaped bricks are pushed outwards and against each other. As these are not produced uniformly, stresses are created which loosen the joint structure of the shaped bricks until many of the shaped bricks break. On the other hand, when the unit cools down after the shutdown, cracks are created due to the phenomenon of cold shrinkage, and the cracks form...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F27B1/14F27D1/04F27B1/24F27D1/00F27D1/14
CPCF27B1/24F27D1/14F27D1/0006F27B1/14
Inventor H·皮林格
Owner MAERZ OFENBAU