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Anchor Brick | High Strength Refractory Hanging Brick for Industrial Furnace Lining
1. Product Overview
Anchor brick, commonly named hanging refractory brick, is a specially structured refractory product widely used for suspended furnace lining systems. Unlike conventional flat bricks that rely on stacking friction, anchor bricks adopt a unique grooved and hanging structure, which can be firmly fixed with metal anchor bolts and refractory castables. As an indispensable structural refractory material, it effectively supports and suspends the integral furnace lining, solving common high-temperature problems such as lining falling off, cracking, deformation and thermal spalling.
Our anchor bricks are produced with high-quality bauxite, high alumina, mullite and clay raw materials through strict batching, high-pressure forming and high-temperature tunnel kiln sintering. With stable physical and chemical properties, excellent mechanical strength and reliable high-temperature volume stability, these bricks can adapt to long-term continuous operation under harsh industrial high-temperature environments.
2. Product Structural Characteristics
Anchor brick adopts professional dovetail groove and hanging structure design. The special-shaped structure can be perfectly embedded with refractory castables and anchor fixing parts, forming an integrated and stable lining system. The overall structure features strong adhesion, high overall firmness and uniform stress distribution. It avoids local hollowing, peeling and shedding caused by thermal expansion and cold contraction during furnace operation.
In addition, the dimensional tolerance of our anchor bricks is strictly controlled during production. The precise size ensures convenient and fast on-site construction, greatly improves the overall compactness of the furnace lining, reduces heat loss, and improves the thermal insulation effect and energy-saving performance of the industrial kiln.
3. Core Performance Advantages
High Mechanical Strength Anchor brick has excellent cold crushing strength and high-temperature structural strength. It can bear the weight of the upper refractory lining and long-term high-temperature load without deformation or fracture, ensuring the overall structural safety of the furnace top and suspended walls.
Excellent Thermal Shock Resistance The product has good thermal shock stability, which can resist frequent temperature rise and fall cycles in industrial furnaces. It is not easy to crack or peel under drastic temperature changes, effectively prolonging the service life of the furnace lining.
Stable High-temperature Volume Low high-temperature creep rate and excellent volume stability ensure that the brick body will not produce excessive expansion or shrinkage at long-term high temperature, maintaining the integrity and tightness of the overall lining structure.
Strong Compatibility Anchor bricks match well with various refractory castables, plastic refractories and ramming materials. The coordinated thermal expansion coefficient makes the integral lining more stable and avoids structural damage caused by inconsistent expansion.
Customizable Performance and Size We support customized alumina content, overall dimensions, special-shaped structures and physical indicators according to customer drawings and actual working conditions, meeting the lining requirements of different types of industrial high-temperature kilns.
4. Main Application Fields
Anchor refractory bricks are widely used in various industrial high-temperature kilns that require suspended lining structures. Typical application positions include furnace roofs, kiln crowns, arch tops, flue ceilings, furnace upper walls and special transition sections.
Applicable industries cover cement rotary kilns, steel reheating furnaces, heat treatment furnaces, petrochemical heating furnaces, lime rotary kilns, ceramic tunnel kilns, incinerators and other high-temperature thermal equipment. It is a key structural refractory material to ensure stable furnace operation and reduce maintenance frequency.
5. Technical Parameter Range
Our factory can supply anchor bricks with different grades according to customer demands:
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Alumina content: 42% – 75%
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Cold crushing strength: 20MPa – 55MPa
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Apparent porosity: ≤26%
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Refractoriness under load: 1250℃ – 1550℃
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Stable working temperature: 1100℃ – 1450℃
All technical indicators can be adjusted according to actual furnace working conditions to achieve the best matching use effect.
6. Our Custom and Service Support
We are a professional manufacturer of custom refractory anchor bricks. We can produce standard series products and all kinds of non-standard special-shaped anchor bricks according to customer drawings, samples and technical requirements. From raw material selection, formula optimization, high-pressure forming to high-temperature sintering and strict quality inspection, every production process is strictly controlled to ensure stable and reliable product quality.
Whether it is small-batch special-shaped customization or large-scale kiln lining project supporting, we can provide accurate quotation, professional technical guidance and perfect after-sales service. Welcome customers to send drawings, working condition parameters and demand quantities for customized solutions.
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