Riser apparatus for recycling waste heat of coke oven crude gas

• Main Authors: SUN ZHAOJUN, TANG ZHIGANG, LI GUIHUA, FAN XIAOGUANG, JIANG AIGUO, CHEN SHANLONG, WANG BIN
• Format: Patent
• Language: English
• Published: 13.01.2016
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; FUELS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LUBRICANTS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a riser apparatus for recycling waste heat of coke oven crude gas. The riser apparatus comprises a riser jacket outer cylinder and a riser jacket inner cylinder, wherein the outer wall of the riser jacket inner cylinder is hermetically connected with two axial ends of the riser jacket outer cylinder; an upper end and a lower end of the riser jacket inner cylinder are correspondingly provided with an upper connecting flange and a lower connecting flange; a crude gas riser outlet is formed at the upper connecting flange; a crude gas riser inlet is formed at the lower connecting flange; a sealing cavity is formed between the outer wall of the riser jacket inner cylinder and the riser jacket outer cylinder; a heated medium inlet is formed at the lower end of the riser jacket outer cylinder; a heated medium outlet is formed at the upper end of the riser jacket outer cylinder; and heat conductive fins are arranged on an inner wall of the riser jacket inner cylinder. According to the riser apparatus for recycling the waste heat of the coke oven crude gas disclosed by the present invention, the fins are used for conducting heat of the crude gas, and the jacket inner cylinder is isolated from the crude gas by means of a heat insulation layer, so that the problem that a riser is blocked by tar pitch-graphitization in the crude gas due to the fact that the crude gas is in contact with a cold wall of the jacket inner cylinder is avoided.