Honeycomb Protective Blocks for RTO

Honeycomb protective blocks is also named “plate brick”. Regenerative furnaces (such as RTO applications),they are generally installed behind the burner of a regenerative heating furnace to support and reinforce the ceramic heat storage body material. The baffle brick can also be used in various regenerative combustion systems with the honeycomb body. When the two are used together, they are installed in front of the honeycomb ceramics to protect the honeycomb ceramics and extend their lives. The first thing to consider is their high temperature performance and thermal shock resistance.

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Functions

Its function is to protect the heat storage body and prolong the heat storage system. The service life of the heating body. Therefore, heat storage performance and thermal shock performance are the primary factors for selecting baffle bricks. The baffle brick produced by our company has the characteristics of good thermal shock stability, high softening point, strong resistance to chemical erosion, and good thermal shock resistance, which can ensure the performance and service life of the heat storage body during use. Reduce the downtime of steel mills and reduce production costs. The external dimensions and structure can be produced according to the requirements of the user's drawings. In addition to conventional materials such as mullite, corundum mullite, and fused corundum, baffle brick materials can also use chrome corundum mullite, which has excellent slag resistance and thermal erosion resistance, and can be used in harsh environments. Made of zirconium corundum mullite.

Application

Honeycomb protective blocks main applications: steel plants, waste incinerators, waste gas treatment thermal equipment, chemical plants, smelters, power plants, power industry boilers, gas turbines, engineering heating equipment, ethylene cracking furnaces, etc.

Technical Parameters

Item	Corundum	Mullite	High Alumina Porcelain
Al₂O₃(%)	80-86	56-65	53-60
SiO₃ (%)	11-19	32-41	37-44
Others (%)	≤3.0	≤3.0	≤3.0
Specific Gravity(g/m³)	1.7	1.5	1.5
Thermal Expansion (X10^-6/℃)	6.5-8	7-8	7-8
Max. Working Temp.(℃)	1650	1450	1350

Size(mm)	Channel Width（mm）	Inner wall Thickness （mm）	Specific surface area	Free Cross Section (%)
200x80x100	14	6-8	87	36
250x80x100	14	6-8	87	36
300x80x100	14	6-8	87	36
350x80x100	14	6-8	87	36
400x80x100	14	6-8	87	36
450x80x100	14	6-8	87	36
500x80x100	14	6-8	87	36
200x100x100	14	6-8	80	34
250x100x100	14	6-8	80	34
300x100x100	14	6-8	80	34
350x100x100	14	6-8	80	34
400x100x100	14	6-8	80	34
450x100x100	14	6-8	80	34
500x100x100	14	6-8	80	34
600x100x100	14	6-8	80	34