Efficient sand temperature adjuster with grading function

Abstract

The invention discloses an efficient sand temperature adjuster with a grading function. The adjuster comprises a machine body and a cooling unit tube bundle, the feeding end of one side of the machine body is provided with a quantitative feeder, and a bundle spraying air tube is arranged in the machine body and close to the feeding end of the machine body; a feeding screening plate is arranged above the bundle spraying air tube, a fluidized bed is arranged below the cooling unit tube bundle, a main air tube is arranged at the bottom of the fluidized bed, and the fluidized bed is arranged to communicate with the main air tube; a branch air tube is vertically arranged at one end of the main air tube in a communicating mode and connected with the bundle spraying air tube; a row of material flow guiding plates are arranged on the fluidized bed at equal intervals; and a dust collector is further arranged above the machine body, and the discharging end of the machine body is further provided with an on-line sampling device. The sand temperature adjuster is compact in outline size, easy to arrange on a site, high in temperature reducing efficiency, convenient to adjust the sand flow temperature and little in overhauling and maintaining, dust removal equipment is integrated so that fine powder in molding sand can be removed, the quantitative feeding mode can further be ensured, and thus the molding sand treated on the fluidized bed is more uniform and orderly.

Description

technical field [0001] The invention relates to a high-efficiency sand temperature regulator with a grading function, which is mainly used for cooling and grading resin sand, lost foam casting sand and V-method casting sand. Background technique [0002] At present, the tempering equipment used in the sand regeneration production line of resin sand, lost foam casting sand and V-method casting sand in China is mainly horizontal water-cooled floating sand cooling bed, water bath cooling drum, vertical countercurrent water heat exchange cooler and other equipment. , the problem in dust removal is that it is inconvenient to classify and remove the fine powder in the molding sand. The molding sand in the floating bed is a one-pass type. When the blast and suction pressure fluctuate, the operator cannot know in time, and it is difficult to ensure the dust removal effect; adjust the outlet The temperature of the sand is unstable, the inspection and maintenance of the cooling water ...

AI Technical Summary

Problems solved by technology

[0002] At present, the tempering equipment used in the sand regeneration production line of resin sand, lost foam casting sand and V-method casting sand in China is mainly horizontal water-cooled floating sand cooling bed, water bath cooling drum, vertical countercurrent water heat exchange cooler and other equipment. , the problem in dust removal is that it is inconvenient to classify and remove the fine powder in the molding sand. The molding sand in the floating bed is a one-pass type. When the blast and suction pressure fluctuate, the operator cannot know in time, and it is difficult to ensure the dust removal effect; adjust the outlet The sand temperature is unstable, the cooling water pipe is inconvenient to repair and maintain, and the operating life is short

In addition, the existing equipment has the disadvantages of large size, low heat exchange efficiency, high energy consumption, and inconvenient adjustment of sand production temperature.

[0003] Secondly, when the molding sand enters the sand temperature regulator for reproduction treatment, the direct feeding method will cause the phenomenon of internal molding sand processing blockage, and the feeding cannot guarantee quantitative feeding, resulting in insufficient order of molding sand processing. The cost of the quantitative sensor will increase, and there will be equipment failure after a long time of use, resulting in intermittent use of the sand temperature regulator

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