Waste molding sand or core sand regenerating equipment

Abstract

The invention relates to waste molding (core) sand regenerating equipment. The regenerating equipment comprises a fluidizing roasting furnace, wherein the fluidizing roasting furnace is provided with a roasting feeding hole, a roasting discharging hole, an air inlet passage and an air outlet passage. The regenerating equipment is characterized in that the waste molding sand or core sand regenerating equipment also comprises a sand separating heating device; the sand separating heating device is arranged above the fluidizing roasting furnace and comprises a sand separating heating chamber, a sand separating heating beam and a sand separating cone, wherein the sand separating heating beam and the sand separating cone are arranged in the sand separating heating chamber; the top and the bottom of the sand separating heating chamber are provided with openings; the sand separating cone is arranged on the opening at the top of the sand separating heating chamber and fixed at the top of the sand separating heating beam; a sand discharging hopper is arranged above the sand separating heating chamber, and communicated with the sand separating cone; and the opening at the bottom of the sand separating heating chamber is communicated with the roasting material inlet of the fluidizing roasting furnace. The invention has skillful and reasonable structure, skillfully combines a convection heat exchange technology and a boiling and fluidizing heating technology, sufficiently utilizes the heat energy, and enhances the heat efficiency and the treating capability of the equipment.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a recycling equipment for waste molding sand or core sand. Background technique [0002] In various sand molding or core sand molding casting processes, a large amount of waste molding sand or core sand will be produced. The recycling and utilization of waste mold (core) sand is related to three aspects: casting cost, resource conservation and environmental protection. In my country's "Eleventh Five-Year Plan", it is particularly proposed to "develop circular economy and increase environmental protection" and "build a resource-saving and environment-friendly society". Extremely important environmental protection and economic value. [0003] The composition of waste type (core) sand is complex and there are various types. In order to improve the reuse efficiency of waste type (core) sand, in addition to some parts that can be regenerated by traditional mechanical method...

AI Technical Summary

Problems solved by technology

Existing waste type (core) sand recovery and reuse equipment generally has the defect of low thermal efficiency, and the processing capacity is limited, and the processing effect is average.

Images