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Waste heat recovery device in steel wire heat treatment process

A waste heat recovery device and technology of heat treatment process, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems of increasing the temperature of the circulating water pool, ineffective utilization of heat energy, and affecting the cooling effect.

Active Publication Date: 2013-07-10
JIANGSU SHENGDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional production process, heating the degreasing tank and phosphating tank requires a lot of steam resources, and the high-temperature cooling water after cooling the superheated zone of the lead quenching tank is discharged into the circulating water pool, which will inevitably increase the temperature of the circulating water pool and affect subsequent cooling. As a result, it is necessary to purchase a cooling tower to cool down, and the heat energy is not effectively used, resulting in huge waste

Method used

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  • Waste heat recovery device in steel wire heat treatment process

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Effect test

Embodiment 1

[0019] Such as figure 1 As shown, the circulating water from the circulating water pipe network 4 enters the superheating zone at the entrance of the quenching tank 3 from the water inlet pipe 5, and after cooling the superheated area, it enters the flash tank 7 from the water outlet pipe 6 and enters the high-pressure cooling circulating water in the flash tank 7 After entering the relatively low pressure flash tank 7 due to the sudden drop in pressure, the cooling circulating water becomes part of the saturated steam and saturated water under the vessel pressure. A part of the saturated steam after flashing from the flash tank 7 is sent to the degreasing tank 1 before the austenitizing furnace 2 for heating, and the other part is sent to the high temperature phosphating tank 9 after the hydrochloric acid tank 8 for heating. The saturated water is discharged from the flash tank 7 tank to the hot water heating pipe network 10, which can not only reduce the power consumption of ...

Embodiment 2

[0021] On the basis of the above embodiment, such as figure 1 As shown, a waste heat recovery device in the heat treatment process of steel wire includes a circulating water pipe network 4 connected to a quenching tank 3 through a water inlet pipe 5, and the quenching tank 3 is also provided with a water outlet pipe 6 connected to the flash tank 7, The flash tank 7 is also connected to the hot water heating pipe network 10, the lead quenching tank 3 is provided with an overheating zone, the lead quenching tank 3 is also provided with a cooling device, and the lead quenching tank 3 is also provided Precipitation filtering device, the flash tank 7 is also connected to the degreasing tank 1, the degreasing tank 1 is also connected to the austenitizing furnace 2, and the austenitizing furnace 2 is also connected to the lead quenching The lead quenching tank 3 is connected to the hydrochloric acid tank 8, the hydrochloric acid tank 8 is also connected to the high temperature phospha...

Embodiment 3

[0023] On the basis of the above embodiment, such as figure 1 As shown, a waste heat recovery device in the heat treatment process of steel wire includes a circulating water pipe network 4 connected to a quenching tank 3 through a water inlet pipe 5, so that circulating water enters the quenching tank 3 from the water inlet pipe 5; The lead quenching tank 3 is also provided with a water outlet pipe 6 connected to a flash tank 7, and the flash tank 7 is also provided with a hot water heating pipe network 10.

[0024] Wherein, the lead quenching tank 3 is provided with an overheating zone, a cooling device and a precipitation filtering device.

[0025] Wherein, while the circulating water cools the overheating zone, a cooling device is used to cool the overheating zone, and the precipitation device performs precipitation filtration on the circulating water.

[0026] Wherein, the flash tank 7 is a low-pressure flash tank.

[0027] Wherein, the flash tank 7 is further connected to the de...

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Abstract

The invention relates to a waste heat recovery device in a steel wire heat treatment process. The waste heat recovery device comprises a circulating water pipe network which is connected to a lead quenching tank through a water inlet pipe, so that the circulating water enters the lead quenching tank from the water inlet pipe; the lead quenching tank is provided with a water outlet pipe which is connected to a flash tank; and the flash tank is connected with a hot water heating pipe network. By adoption of the scheme, the electricity consumed by heating in factories in winter can be reduced, the water temperature of the cooling circulating water can be reduced, and the phenomenon that the cooling effect on an overheated zone of the lead quenching tank 3 is bad because the temperature of the cooling circulating water is extremely high is avoided, so that the quality of the tire bead steel wire is influenced.

Description

Technical field [0001] The invention relates to the field of bead wire production and manufacturing, in particular to a waste heat recovery device in the heat treatment process of the wire. Background technique [0002] Before the bead wire is austenitized, the wire needs to be degreased to obtain a uniform surface color so that it can receive uniform radiation during the austenite heat treatment. In addition, the soap powder remaining on the surface of the steel wire after drawing can be removed to prevent too much soap powder on the surface of the steel wire from causing the steel wire to austenitize too quickly. Steam is generally used to heat the degreasing tank. When the steel wire enters the quenching tank after austenitization, the heat accumulation on the surface of the steel wire will cause an overheating zone at the entrance of the quenching tank, which will produce proeutectoid ferrite inside the steel wire, and the resulting lamellar pearlite will also be thicker. , ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/52
Inventor 陆海
Owner JIANGSU SHENGDA TECH
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