High-temperature flue gas purification anti-blocking ceramic membrane tube

The utility model provides a high-temperature flue gas purification anti-clogging ceramic membrane tube, which comprises a tube head, a tube body and a tube bottom, the tube head is inverted trapezoidal and comprises a tube head wall and a tube head cavity, the inner wall of the tube head wall protrudes inwards to form an expansion section, so that the tube head cavity forms a contraction section, the tube body is positioned at the lower part of the tube head and comprises a tube body wall and a tube body cavity, and the outer diameter of the tube body wall is gradually reduced from top to bottom. And a fixing hole is formed in the center of the pipe bottom. According to the anti-blocking ceramic membrane tube for high-temperature flue gas purification, the inner wall of the tube head wall protrudes inwards to form the expansion section, so that the tube head cavity shrinks inwards to form a Venturi structure, the air velocity is increased, the reverse blowing gas amount is increased, ash removal is more thor