품질 점토 벽돌 성형기 & 벽돌 터널 가마 제조 업체

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.

Brictec, 제9회 바그다드 국제 건축 및 건설 엑스포(이라크 빌드엑스포)에서 성공적인 전시 최근, 점토 벽돌 공장 공정 설계 및 EPC 건설 분야의 글로벌 리더인 Brictec은 제9회 바그다드 국제 건축 및 건설 엑스포(이라크 빌드엑스포)에 성공적으로 참가했습니다. 전시회에서 Brictec은 터널 가마 설계, 가마차 내화 솔루션 및 턴키 벽돌 공장 프로젝트 분야의 첨단 역량을 강조하며, 고품질 벽돌 공장 모델을 선보였습니다. 부스는 업계 전문가와 현지 계약자들의 뜨거운 관심을 받았으며, 에너지 효율적이고 현대적인 벽돌 공장 솔루션에 대한 Brictec의 전문성을 높이 인정받았습니다. 이번 행사는 Brictec이 이라크 시장에서 더 넓은 중동 지역으로 확장하는 중요한 발걸음이 되었습니다. 현지 고객과의 심도 있는 교류를 통해 Brictec은 효율적이고 지속 가능하며 지능적인 벽돌 공장 솔루션을 지속적으로 제공하여 이라크 및 중동 지역 건설 자재 산업의 질적 발전에 기여할 것입니다.전시회는 큰 성공을 거두었습니다. Brictec은 이라크 국민의 평화, 번영, 행복을 진심으로 기원합니다. 전시 개요이라크 빌드 엑스포 소개: 이라크 빌드 엑스포는 건설, 건축 자재, 인프라 및 부동산 개발 분야를 위한 이라크 최고의 국제 전시회입니다. 9회째를 맞이하는 이 행사는 2025년 9월 8일부터 11일까지 바그다드 국제 박람회장에서 개최될 예정입니다. 이라크가 대규모 재건 및 현대화를 지속적으로 추진함에 따라, 이라크 빌드 엑스포는 현지 및 국제 기업이 의사 결정자, 구매자, 투자자 및 프로젝트 리더로 구성된 매우 타겟팅된 관람객에게 제품, 서비스 및 기술을 선보일 수 있는 중요한 플랫폼을 제공합니다. 이라크, 중동, 유럽 및 아시아 전역에서 300개 이상의 전시업체와 수천 명의 전문 방문객이 참여하는 이 엑스포는 네트워킹, 파트너십 구축, 이라크 건설 환경의 미래에 기여할 수 있는 비교할 수 없는 기회를 제공합니다. 주요 특징:1. 건설의 모든 분야를 포괄하는 광범위한 전시 공간2. 고위급 B2B 매치메이킹 프로그램3. 라이브 시연 및 기술 발표4. 정부 기관 및 민간 개발업체의 참여 감사의 말씀: 이 전시회를 주최한 이라크 피라미드 그룹 A.S.에 감사의 말씀을 전합니다. 편집자: JF & Lou

Brictec Successfully Completes Thermal Shock Resistance Test for Refractory Bricks, Demonstrating Expertise in Brick Plant Construction With 15 years of experience in complete plant process design and project construction for clay-fired brick production, Brictec has recently completed thermal shock resistance tests for tunnel kiln refractory bricks and kiln car refractory bricks. These tests not only verified the performance of refractory materials under extreme temperature variations but also demonstrated Brictec's professional approach to material selection and quality control in brick plant construction. Importance of Thermal Stability Testing In clay brick production, tunnel kiln refractory bricks and kiln car refractory bricks are directly exposed to high-temperature impacts and frequent thermal cycling. Tunnel kiln bricks must withstand continuous operating temperatures above 1000°C, while kiln car bricks endure severe thermal shocks during the loading/unloading of red brick green bodies. Inadequate thermal stability can lead to cracking and spalling, significantly affecting kiln service life and production safety. Brictec's Rigorous Testing Protocol To ensure refractory bricks meet operational requirements, Brictec has established strict "Refractory Brick Thermal Shock Resistance Testing Standards": Sample Preparation: Specimens cut from production batches according to GB/T 3997.1 Equipment: Program-controlled electric furnace with water quenching system Procedure: Heat specimens to 1100°C for 30 minutes Rapidly quench in 20°C water Repeat cycles until failure occurs Evaluation: Strength retention rate after 20 cycles (≥80% qualified) Quality Assurance for Construction Projects During testing, Brictec utilized temperature monitoring systems integrated with (clay brick making machines) for accurate data collection. Our engineering team paid special attention to refractory performance in actual (red brick making machine) production lines, using test results to select optimal materials for ongoing projects. Key Term Glossary: Clay brick making machine: Core equipment for forming and firing clay bricks Red brick making machine: Automated equipment specialized in standard red brick production Thermal shock resistance: Material's ability to withstand rapid temperature changes without damage Should there be any technical inaccuracies or editorial errors, we welcome corrections and feedback.