Air knife and water-cooling block combined saw belt quenching cooler

Abstract

The invention relates to an air knife and water-cooled block composite saw belt quenching cooler, wherein a corresponding saw belt inlet and a corresponding saw belt outlet are respectively arranged on both ends of a closed tank provided with a tank cover; two parallel water-cooled metal blocks are arranged inside the closed tank and between the saw belt inlet and the saw belt outlet; a gap for asaw belt to pass through is reserved between the two water-cooled metal blocks; an air knife is arranged above the gap between the two water-cooled metal blocks; the bottom of the air knife is provided with at least one array of blast nozzles corresponding to the gap between the two water-cooled metal blocks; the rear ends of the blast nozzles pass through an air flue inside the air knife and arecommunicated with an air inlet interface of the air knife; and a cooling pipe is arranged on the closed tank. The air knife and water-cooled block composite saw belt quenching cooler can greatly improve the hardenability of the tooth top and the backside of the saw belt, can obtain the saw belt with superior hardness, strength and organizational structure, and has the advantages of simple structure, small maintenance amount, low energy consumption, stable cooling speed, energy conservation and no environmental pollution.

Description

technical field [0001] The invention relates to equipment for heat-treating saw bands, in particular to an air knife and water cooling block composite saw band quenching cooler. Background technique [0002] In the saw band production process, the saw band quenching temperature is as high as 1200°C. In order to achieve non-oxidative heating, high-purity nitrogen protection is used, and the tip part is made of high-speed steel, which requires rapid cooling. Saw band quenching and cooling is to achieve a certain rapid cooling rate in a closed environment. The original process uses refrigeration to indirectly cool the protective atmosphere, and then cool the saw blade through a low-temperature protective atmosphere to achieve rapid cooling of the heated saw band; The disadvantages of this method of cooling are: a. There are many equipments, and a cascade refrigeration unit needs to be added; b. High energy consumption, frequent failures, and large maintenance; c. The original c...

AI Technical Summary

Problems solved by technology

Saw band quenching and cooling is to achieve a certain rapid cooling rate in a closed environment. The original process uses refrigeration to indirectly cool the protective atmosphere, and then cool the saw blade through a low-temperature protective atmosphere to achieve rapid cooling of the heated saw band; The disadvantages of this method of cooling are: a. There are many equipments, and a cascade refrigeration unit needs to be added; b. High energy consumption, frequent failures, and large maintenance; c. The original cooler is cooled by refrigeration units. The cooling effect is not good, the gas flow rate is small, the air flow is far away from the tip of the tooth, there is no special cooling for the tip of the tooth, and the cooling speed of the tip of the tooth is slow

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