Heterogenic energy sludge drying system

• Main Author: CHE LEI
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2013
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model relates to a heterogenic energy sludge drying system. The sludge drying system comprises a greenhouse (1), a heterogenic energy heat supply unit (2) and a dehumidification unit (3), wherein the heat supply unit (2) is connected in parallel with a first hot air apparatus (4), and the first hot air apparatus (4) is positioned on the inner wall of the greenhouse (1); the dehumidification unit (3) comprises a dehumidification chamber (30) arranged outside the greenhouse (1) and a first dehumidification loop formed by a second heat pump evaporator (31), a second internal heat exchanger (32), a second compressor (33), a second throttle valve (34) and a second floor heating coil pipe (35), a dehumidification chamber outlet (37) of the dehumidification chamber (30) is positioned below a sludge drying bed (10), breather holes (12) are formed in the sludge drying bed (10), and carrier gas flowing out of the dehumidification chamber outlet (37) passes through the breather holes (12) and returns to the