Most of the anchors are used as fasteners for the overall lining (casting, plastic and lining of the spray). Refractory brick linings also use anchors, but there are not many applications. Metal anchors are commonly used to support and secure thinner or insulated integral linings, such as linings for chimneys, wear linings for petrochemical catalytic cracking reactors (commonly used for tortoise mesh anchors), and spray metallurgy The lining of the spray gun, the integral lining of the impregnation pipe of the DH and RH vacuum degasser, the discharge date of the rotary kiln, the lining of the feed inlet, and the like. Metal anchors are mostly used to fix liners with a long-term use temperature below 1200 °C, or liners that can be used for short-term use temperatures above 1200 °C. Ceramic anchors are commonly used to hold thicker (greater than 200mm) integral linings, which are characterized by:
(1) It can withstand higher service temperatures, and is generally used in kiln linings for long-term use above 1200 °C;
(2) It can withstand the erosion and corrosion of corrosive atmospheres;
(3) It can be extended to the working surface to reduce the flaking of the overall lining;
(4) Compared with the metal anchor, the contact area with the refractory lining is large, and thus has greater support ability;
(5) The coefficient of thermal expansion is equivalent to that of the integral refractory material, which can eliminate cracking or spalling of the liner due to thermal expansion mismatch.
Origin: China
HS Code: 73100000
Steel Anchor are members used to join an integral refractory lining, a refractory preform, a refractory fiber mat to a furnace shell or furnace steel structure. The role of the anchor is to fix the connected lining in a position to resist static load, thermal stress, mechanical rotation or vibration. The anchor helps to prevent the collapse of the material before the combination of ceramics during construction and heating, and also helps to make the material shrink evenly and avoid large and concentrated cracks in the liner.