Method for cooling sand temperature regulator cooling water through earth cooling

Abstract

The invention relates to the technical field of temperature regulation for foundry recycled sand, in particular to a method for cooling recycled water for sand regeneration by utilizing underground low-temperature soil, which is a method for cooling sand temperature regulator cooling water through earth cooling. Foundry sand can meet the use requirement only by temperature regulation after being recycled. In the prior art, one way is to adopt a cooling tower to cool a circulating water system, the temperature of recycled water cooled in this way in summer is still higher, and the temperature of the recycled sand can not be lowered to be in the range required in the process and can only be regulated by adding running water, while the discharge of superfluous water of the system causes the waste of water resources; and the other way is to purchase cooling equipment for cooling, which results in large investment and more electricity consumption. In the invention, a sand temperature regulator cooling and circulating water system is connected to a running water main pipeline in parallel according to the principle of earth cooling, and sealed one-way circulation is carried out by utilizing running water as a cooling medium of the sand temperature regulator. Water absorbing heat transfers the heat to the earth through a buried running water pipeline, thereby the aims of no water consumption and energy resource saving can be achieved.

Description

technical field [0001] The invention relates to the technical field of temperature regulation of foundry regenerated sand, in particular to a method for utilizing ground cooling to cool the cooling water of a sand temperature regulator. Background technique [0002] In the foundry production process, after the old foundry sand is regenerated, the temperature must be adjusted to meet the use requirements. At present, the sand temperature regulators of domestic foundry companies generally use water as the cooling medium. The water flows through the coil heat exchanger in the sand temperature regulator to absorb the heat of the sand to reduce the temperature of the regenerated sand, so that the temperature of the reclaimed sand meets the process requirements. The water carrying heat from the sand temperature regulator is generally recycled after cooling and cooling. In the prior art, there are two methods of water cooling: one is to use a special cooling tower to cool the circ...

AI Technical Summary

Problems solved by technology

In the prior art, there are two methods of water cooling: one is to use a special cooling tower to cool the circulating water system, in this way, the temperature of the circulating water after cooling in summer is still high, and the temperature of the recycled sand cannot be lowered to the process requirement range, it must be adjusted by adding tap water with a lower temperature, so that the water temperature can meet the requirements for use

The excess water in the system is discharged, resulting in waste of water resources; the second is to purchase special refrigeration equipment for cooling, the one-time investment of equipment is large, the power consumption is large, and the operation and maintenance will consume a lot of manpower and material resources.

Both of these methods result in a waste of resources, energy and economy

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