Sand recovering device for heat-treatment furnace

• Main Authors: GU BIN, XIONG JIANFANG
• Format: Patent
• Language: Chinese; English
• Published: 11.11.2009
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The utility model provides a sand recovering device for a heat-treatment furnace, which comprises a furnace body (1). The sand recovering device is characterized in that a sand receiving hopper (6) is arranged below a steelwire outlet of the furnace body; a shakeout hopper (3) is installed horizontally above the furnace body; the sand receiving hopper and the shakeout hopper are communicated with each other through a sand recovering spray nozzle (7); a sand recovering pipeline (5), a sand homogenizing tube (4) and a shakeout hopper (3) which are arranged in turn; and at the bottom part of the shakeout hopper (3), a shakeout slotted hole matched with a sand recovering narrow hole which is horizontally formed at the top part of the furnace body and communicated with the inner chamber of the furnace body is formed in the length direction of the bottom part. The sand recovering device provided by the utility model can enable sand carried out by steelwires to return inside the furnace for recycling, thereby achiev