ꯕꯣꯏꯂꯤꯡ ꯀꯨꯂꯤꯡ ꯕꯦꯗ .

With the continuous improvement of the℃of mechanization and automation in molding, the demand for molding sand has increased, and the recycling time of used sand has thus been greatly shortened. Many foundries' molding sand lines do not have sufficient sand cooling equipment set up in the sand treatment system, resulting in the problem of excessively high temperature of reused used sand during hot summers and full-load operation. Excessively high temperature of molding sand can cause a series of ꯄꯨꯊꯣꯀꯄꯗꯥ ꯊꯦꯡꯅꯔꯤꯕꯥ ꯈꯨꯗꯣꯡꯆꯥꯗꯕꯁꯤꯡ, ꯍꯥꯌꯕꯗꯤ ꯃꯣꯜꯗꯤꯡ ꯁꯦꯟꯗꯂꯋꯨꯗꯀꯤ ꯑꯅꯁ꯭ꯇꯦꯕꯜ ꯄꯔꯐꯣꯃꯦꯟꯁ, ꯇꯦꯃꯞꯂꯦꯠ ꯑꯃꯁꯨꯡ ꯁꯦꯟꯗ ꯍꯣꯄꯔꯗꯥ ꯐꯖꯅꯥ ꯑꯦꯗꯖꯦꯁꯟ ꯇꯧꯕꯥ, ꯃꯣꯜꯗ ꯁꯔꯐꯦꯁꯀꯤ ꯐꯖꯅꯥ ꯗꯤꯍꯥꯏꯗ꯭ꯔꯦꯁꯟ ꯇꯧꯕꯥ, ꯃꯁꯤꯅꯥ ꯀꯥꯁ꯭ꯇꯤꯡꯒꯤ ꯁ꯭ꯛꯔꯦꯞ ꯔꯦꯠ ꯍꯦꯅꯒꯠꯍꯅꯕꯥ ꯑꯃꯁꯨꯡ ꯊꯕꯛ ꯇꯧꯕꯒꯤ ꯀꯟꯗꯤꯁꯅꯁꯤꯡꯗꯥ ꯁꯣꯀꯍꯜꯂꯀꯄꯥ, ꯑꯁꯤꯅꯆꯤꯡꯕꯥ{3}} ꯕꯣꯏꯂꯤꯡ ꯀꯨꯂꯤꯡ ꯕꯦꯗ ꯑꯁꯤ ꯑꯔꯤꯕꯥ ꯁꯦꯟꯗꯂꯋꯨꯗꯀꯤ ꯌꯥꯝꯅꯥ ꯋꯥꯡꯕꯥ ꯇꯦꯝꯄꯦꯔꯦꯆꯔ ꯐꯒꯠꯍꯟꯅꯕꯥ ꯇꯁꯦꯡꯅꯥ ꯗꯤꯖꯥꯏꯟ ꯇꯧꯕꯅꯤ{꯴}}

ꯃꯃꯥꯡꯉꯩꯗꯥ, ꯑꯔꯤꯕꯥ ꯁꯦꯟꯗꯂꯋꯨꯗꯀꯤ ꯀꯨꯂꯤꯡ ꯑꯁꯤ ꯑꯌꯥꯝꯕꯅꯥ ꯀꯨꯂꯤꯡ ꯔꯣꯂꯔꯁꯤꯡ ꯁꯤꯖꯤꯟꯅꯗꯨꯅꯥ, ꯑꯔꯤꯕꯥ ꯁꯦꯟꯗꯂꯋꯨꯗꯀꯤ ꯕꯦꯜꯇꯀꯤ ꯂꯝꯕꯤ ꯍꯦꯅꯒꯠꯍꯟꯗꯨꯅꯥ ꯑꯃꯁꯨꯡ ꯏꯟꯇꯔꯃꯦꯗꯤꯑꯦꯠ ꯁꯦꯟꯗ ꯁ꯭ꯇꯣꯔꯦꯖ ꯍꯣꯄꯔ ꯑꯁꯤ ꯄꯥꯀꯊꯣꯛ ꯆꯥꯎꯊꯣꯀꯍꯟꯗꯨꯅꯥ ꯐꯪꯕꯥ ꯉꯃꯈꯤ, ꯑꯁꯤꯅꯆꯤꯡꯕꯥ{0}} ꯍꯥꯌꯔꯤꯕꯁꯤꯡ ꯑꯁꯤꯅꯥ ꯑꯌꯥꯝꯕꯅꯥ ꯕꯣꯏꯂꯤꯡ ꯀꯨꯂꯤꯡ ꯕꯦꯗ ꯑꯁꯤꯅꯥ ꯃꯔꯨꯑꯣꯏꯅꯥ ꯅꯨꯡꯁꯤꯠꯀꯤ ꯀꯟꯚꯦꯛꯁꯟꯗꯥ ꯊꯥꯖꯕꯥ ꯊꯝꯕꯥ ꯃꯃꯥꯡꯒꯤ ꯃꯦꯊꯗ ꯑꯗꯨ ꯍꯦꯟꯅꯥ ꯐꯒꯠꯍꯜꯂꯦ{2}}

ꯃꯁꯤꯒꯤ ꯕꯣꯏꯂꯤꯡ ꯁ꯭ꯇꯦꯠ ꯑꯁꯤꯅꯥ ꯕꯣꯏꯂꯤꯡ ꯄ꯭ꯂꯦꯠꯀꯤ ꯃꯊꯛꯇꯥ ꯁꯦꯠ ꯇꯧꯕꯥ ꯍꯤꯠ ꯑꯦꯛꯁꯆꯦꯟꯖꯔ ꯑꯗꯨꯒꯥ ꯃꯄꯨꯡꯐꯥꯅꯥ ꯀꯟꯇꯦꯛꯇ ꯇꯧꯏ, ꯃꯁꯤꯅꯥ ꯁꯦꯟꯗꯂꯋꯨꯗꯀꯤ ꯐ꯭ꯂꯣ ꯑꯗꯨ ꯅꯦꯒꯦꯇꯤꯚ ꯄ꯭ꯔꯦꯁꯔ ꯑꯃꯥ ꯁꯦꯝꯅꯕꯥ ꯏꯛꯌꯨꯏꯄꯃꯦꯟꯇ ꯑꯗꯨꯗꯒꯤ ꯗꯤꯁꯆꯥꯔꯖ ꯇꯧꯔꯕꯥ ꯑꯦꯌꯔꯐ꯭ꯂꯣ ꯑꯗꯨꯒꯤ ꯄ꯭ꯔꯦꯁꯔ ꯑꯗꯨ ꯀꯟꯠꯔꯣꯜ ꯇꯧꯗꯨꯅꯥ ꯁꯦꯀꯦꯟꯗꯔꯤ ꯍꯤꯠ ꯑꯦꯛꯁꯆꯦꯟꯖ. ꯇꯧꯕꯥ ꯌꯥꯍꯜꯂꯤ, ꯃꯥꯌꯀꯩ ꯑꯃꯔꯣꯃꯗꯥ, ꯁꯦꯟꯗꯂꯋꯨꯗꯀꯤ ꯏꯁꯤꯡ ꯑꯗꯨ ꯏꯐꯦꯛꯇꯤꯚ ꯑꯣꯏꯅꯥ ꯆꯪꯁꯤꯅꯕꯥ ꯌꯥꯏ, ꯑꯃꯁꯨꯡ ꯃꯥꯌꯀꯩ ꯑꯃꯔꯣꯃꯗꯥ, ꯁꯦꯟꯗꯂꯋꯨꯗꯀꯤ ꯏꯁꯤꯡꯗꯥ ꯌꯥꯎꯔꯤꯕꯥ ꯐꯤ ꯑꯗꯨ ꯆꯨꯃꯊꯣꯀꯄꯥ ꯌꯥꯏ.

(꯱) ꯑꯦꯌꯔ ꯑꯃꯁꯨꯡ ꯒ꯭ꯔꯦꯅꯨꯑꯦꯜ ꯁꯣꯂꯤꯗ ꯃꯦꯇꯔꯤꯑꯦꯂꯁꯤꯡꯒꯤ ꯃꯔꯛꯇꯥ ꯍꯦꯅꯒꯠꯂꯀꯄꯥ ꯀꯟꯇꯦꯛꯇ ꯑꯦꯔꯤꯌꯥ ꯑꯁꯤꯅꯥ ꯃꯥꯁ ꯑꯃꯁꯨꯡ ꯍꯤꯠ ꯇ꯭ꯔꯥꯟꯁꯐꯔ ꯄ꯭ꯔꯃꯣꯠ ꯇꯧꯏ, ꯃꯁꯤꯅꯥ ꯀꯨꯂꯤꯡ ꯏꯐꯦꯛꯇ. ꯑꯁꯤ ꯌꯥꯝꯅꯥ ꯍꯦꯅꯒꯠꯍꯜꯂꯤ꯫

(2) ꯕꯦꯗ ꯂꯦꯌꯥꯔ ꯑꯁꯤ ꯃꯄꯥꯟꯗꯥ ꯆꯠꯄꯒꯤ ꯐꯤꯚꯝ ꯑꯃꯗꯥ ꯂꯩ, ꯃꯁꯤꯅꯥ ꯃꯥꯟꯅꯕꯥ ꯇꯦꯝꯄꯦꯔꯦꯆꯔ ꯊꯝꯕꯥ ꯉꯃꯒꯅꯤ ꯑꯃꯁꯨꯡ ꯂꯣꯀꯦꯜ ꯑꯣꯚꯔꯍꯤꯇꯤꯡ. ꯊꯤꯡꯕꯥ ꯉꯃꯒꯅꯤ꯫

(꯳) ꯐ꯭ꯂꯣꯌꯤꯡ ꯄꯥꯔꯇꯤꯀꯂꯁꯤꯡ ꯑꯁꯤ ꯔꯤꯑꯦꯛꯁꯟ ꯑꯗꯨꯗꯥ ꯑꯀꯥꯌꯕꯥ ꯄꯤꯗꯅꯥ ꯐꯖꯅꯥ ꯍꯥꯄꯆꯤꯅꯕꯥ ꯅꯠꯠꯔꯒꯥ ꯂꯧꯊꯣꯀꯄꯥ ꯌꯥꯏ, ꯃꯁꯤꯅꯥ ꯊꯧꯑꯣꯡ ꯑꯁꯤ ꯂꯦꯞꯇꯅꯥ. ꯑꯣꯏꯍꯅꯕꯥ ꯉꯃꯒꯅꯤ꯫