quality Clay Brick Making Machine & Brick Tunnel Kiln manufacturer

Xi’an Brictec Shines at the 27th International Conference on Wall and Roof Materials Production Technology and Equipment Expo On September 28, 2025, the highly anticipated 27th International Conference on Wall and Roof Materials Production Technology and Equipment Expo successfully concluded in Xi’an. As one of the most influential events in the industry, the conference attracted numerous well-known domestic enterprises, jointly showcasing cutting-edge technologies and advanced equipment in the field of wall and roof materials production. Xi’an Brictec, together with Brictec’s tunnel kiln burner products, made a remarkable appearance, becoming one of the key highlights of the exhibition. At the expo, Brictec’s tunnel kiln burner, with its unique performance and specialization in thermal engineering products and process equipment for brick plants, attracted significant attention and inquiries from many clay brick manufacturers. Brictec is currently the only burner manufacturer in the market capable of providing professional services from the perspective of overall brick plant process design and tunnel kiln thermal equipment. It is a company that integrates R&D, production, and manufacturing of clay brick tunnel kiln burners. During the exhibition, Brictec’s tunnel kiln burners, known for their high efficiency, energy-saving, and environmentally friendly features, received high praise from visitors, becoming the preferred choice for many customers aiming to enhance production efficiency and product quality. Xi’an Ruitai will continue to uphold the philosophy of “customer-oriented and value-driven by strivers”, listening closely to customer needs, focusing on R&D, and constantly improving product design and performance. Brictec’s tunnel kiln burners will continue to lead the industry in high-quality brick firing solutions, striving to become the No.1 brand in clay brick tunnel kiln burners. The successful conclusion of the 27th International Conference on Wall and Roof Materials Production Technology and Equipment Expo not only provided enterprises in the industry with opportunities for display and exchange but also injected new momentum into the overall development of the wall and roof materials production sector.   News contributed by: JF & LOU

The 27th International Conference on Wall and Roof Materials Production Technology and Equipment Expo 2025 I. Exhibition Content (1) Thematic Reports Policy interpretation by leaders and experts from national ministries; National standards implementation and green evaluation; High-value utilization of solid waste; Performance grading of the brick and tile industry and strategies for pollution reduction and carbon emission reduction; New digital and intelligent production technologies; Energy-saving green wall materials (hollow bricks, blocks, wall panels), architectural decorative terracotta (bricks), colored roof tiles, paving bricks, cultural grey bricks and tiles, brick carvings, etc.; Secondary firing process technology; New drying equipment and energy-saving kiln technologies; New intelligent robots, automatic stacking/unloading/packing equipment; Industrial internet and intelligent manufacturing; Energy-saving, environmental protection, and pollutant treatment technologies; Prefabricated building components and construction technologies; Wall materials and green buildings. (2) Technical Equipment Exhibition Focus on showcasing green, energy-saving, and resource-efficient wall and roof materials, as well as innovative energy-saving manufacturing equipment: New fired wall and roof materials — energy-saving and green thermal insulation wall materials (hollow bricks, blocks, wall panels), architectural decorative terracotta (bricks), colored roof tiles, paving brick production technology and equipment (vacuum extruders, crushers, mixers, rollers, cutters, stackers, robots, unloaders, packing machines, shelving systems, raw material aging units, new dryers, tunnel kilns, kiln operation systems); Traditional architectural grey bricks, tiles, and brick carving technologies and equipment; Autoclaved bricks, AAC blocks (panels), various partition wall panel technologies and equipment; Flue gas purification and environmental protection technologies; New technologies and equipment for solid waste utilization. (3) Related Activities During the exhibition: technical exchanges on R&D, new technologies and processes for energy-saving green wall and roof materials, energy conservation, emission reduction, and equipment applications; factory visits to specialized production lines. Xi’an Wall Materials Research & Design Institute 60th Anniversary Celebration: forums, exhibition of industry achievements, and open visits. II. Brictec Burner Introduction 1. Brictec ISG/ASG High-Speed Natural Gas Burner The Brictec ISG high-speed burner is equipped with automatic ignition and flame detection. It features intelligent automation control, excellent stability, and a wide power regulation range, operating effectively at any temperature. With automatic ignition and temperature control functions, it is an essential ignition device for external-firing tunnel kiln natural gas burner systems and automatic ignition systems. Each burner is equipped with an independent control cabinet, automatic ignition, flame detection, and flue gas fan signal monitoring for safety. The ISG burner eliminates unburned gases inside the tunnel kiln, improving combustion efficiency and reducing harmful emissions. ISG Burner / Technical Parameters: Parameter Specification Applicable Fuels All gaseous fuels (Natural gas, Butane, Propane) Gas Pressure 0.2 – 0.36 bar Heat Power 60 – 150 kW Ignition Method Electrode ignition Operating Modes Max / Min / Stop Flame Detection Ion probe Installation Kiln top or side ASG Burner / Technical Parameters: Parameter Specification Applicable Fuels All gaseous fuels (Natural gas, Butane, Propane) Gas Pressure 0.2 – 2 bar Heat Power 40 – 70 kW Ignition Method None Operating Modes ON – OFF Installation Kiln top 2. Brictec ASNG/2 Dual-Fuel Heavy Oil & Gas Burner The ASNG/2 burner can operate with either liquid fuels (heavy oil, light oil, crude oil, biofuels) or gaseous fuels (natural gas, butane, propane). Switching between fuels requires only a simple switch, no replacement of the burner. A daily oil tank, installed near the kiln, heats and circulates fuel, ensuring continuous flow and avoiding blockages due to low temperature. All tanks are equipped with heaters, safety floats, and necessary accessories for safe and efficient operation. ASNG/2 Burner / Technical Parameters: Parameter Specification Applicable Fuels Liquid: Heavy oil, Light oil, Crude oil, BiofuelsGas: Natural gas, Butane, Propane Gas Pressure 0.2 – 2 bar (for gas) Heat Power 40 – 70 kW Ignition Method Variable (for oil); ON–OFF (for gas) Operating Modes Variable speed (oil) / ON–OFF (gas) Installation Kiln top 3. Brictec PCS Pulverized Coal Burner The Xi’an Brictec PCS pulverized coal burner is an energy-saving, efficient, and simple device used for coal pulverization and feeding in ring kilns and tunnel kilns. It integrates crushing raw coal to below 200 mesh, automatic feeding, and coordination with the temperature control system for fully automated production. PCS Burner / Technical Parameters: Parameter Specification Applicable Fuels Pulverized coal (≤5 mm, Moisture ≤5%, Sulfur ≤4%, HGI ≥50, Calorific value ≥6000 Cal) Heat Power 115 kW per point (max 12 points) Feeding System Automated feeding Installation Tunnel kiln / Ring kiln  

Discussion on Pressure Regime in Brictec Tunnel Kiln Firing During tunnel kiln firing, the rationality of the pressure regime has a significant impact on firing results. The kiln pressure regime refers to the distribution pattern of static pressure along the length of the tunnel kiln. By plotting the pressure data of different car positions, a “pressure curve” is obtained. The pressure regime directly determines the flow state of gases inside the kiln, which in turn affects: 1. Heat exchange in the kiln; 2. The amount of combustion air required and the exhaust gas discharged; 3. The uniformity of pressure and temperature distribution inside the kiln.   I. Formation of the Pressure Regime The pressure distribution inside the kiln is the result of multiple gas flows acting together: 1. Cooling zone: A large amount of cold air enters, while heated air is extracted. 2. Firing zone: Fuel combustion generates gases, with the addition of primary air and atomized fuel. Pressure in this zone is usually higher than atmospheric pressure, forming positive pressure. 3. Preheating zone: A large amount of flue gas and water vapor is discharged by the exhaust fan. Kiln pressure is lower than atmospheric pressure, forming negative pressure. During the transition from positive pressure to negative pressure, there exists an interface where the internal kiln pressure equals the external atmospheric pressure. This is called the zero-pressure plane (or zero point/zero position). (1) Before the zero-pressure plane (preheating zone) → Negative pressure zone, beneficial for discharging flue gas and water vapor, but may cause cold air infiltration, leading to thermal stratification and increased temperature difference. (2) After the zero-pressure plane (firing zone) → Positive pressure zone, prevents cold air entry and maintains stable, uniform temperature. II. Control of the Zero-Pressure Position In practical operation, most tunnel kilns maintain the firing zone under slight positive pressure, and set the zero-pressure plane at: 1. The middle of the firing zone; 2. Or around 1/3 of the coal-feeding rows toward the insulation zone; 3. Or slightly behind this position. This allows high-temperature gases to evenly fill the entire brick stack, ensuring uniform heating and insulation of bricks at high temperatures. III. Key Points for Controlling Positive Pressure 1. Advantages of moderate positive pressure: Stable kiln atmosphere, uniform temperature, prevention of cold air entry. 2. Risks of excessive positive pressure: Significant hot gas leakage → increased heat loss; 3. If kiln car bottom sealing is insufficient → hot gases flow downward, possibly leading to: (1) Deformation and damage of kiln car skirts; (2) Wear of sand seal grooves; (3) Evaporation of bearing lubricating oil, causing bearing damage; (4) Deterioration of the working environment. Therefore, tunnel kiln operation should avoid excessive positive pressure and maintain only slight positive pressure.