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Nozzle device for annealing coiled material

A nozzle and coil technology, applied in furnaces, heat treatment equipment, heat treatment furnaces, etc., can solve problems such as over-burning of the outer ring, and achieve the effects of solving over-burning of the outer ring, shortening heating time, and improving temperature uniformity

Active Publication Date: 2020-02-07
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention reduces the temperature difference between the outer ring and the inner ring during the annealing and heating up stage for coils with typical material specifications by adjusting the layout of the nozzles, so that the end face of the coil forms a uniform temperature flow field and solves the problem of overburning of the outer ring

Method used

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  • Nozzle device for annealing coiled material
  • Nozzle device for annealing coiled material
  • Nozzle device for annealing coiled material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this example, see Figure 1-3 , a spout device for coil annealing, comprising a spout 5 and a vertical diversion box 4, the vertical diversion box 4 is vertically installed on the furnace bottom of the annealing furnace, and a series of spouts 5 are arranged on the vertical diversion box 4, so that the spout 5 The blowing direction is all towards the end surface of the coiled material 8 loaded in the annealing furnace. The vertical diversion box 4 is provided with a spout bottom plate 6. The spouts 2 are all fixed on the spout bottom plate 6. The spout bottom plate 6 is fixed on the vertical flow diversion box by bolts 7. 4, so that the spout 2 is installed on the vertical diversion box 4; the coiled material 8 is set on the sleeve 9, and the coiled material 8 is put into the annealing furnace, so that the end of the sleeve 9 faces the air outlet direction of the spout 2 The air outlets of a series of nozzles 5 are combined to form a side-blowing working surface, the...

Embodiment 2

[0033] This embodiment is basically the same as Embodiment 1, especially pointing out that:

[0034] In this example, see Figure 4 , each nozzle 5 is stamped and formed by thin-walled steel pipe, and the fixed end of the nozzle 5 forms a flared arc structure after stamping, which reduces the airflow transmission resistance, reduces the gas pressure head, and further saves energy and reduces consumption; at the same time, the fixed end of the nozzle 5 Forming the flared arc structure can make the connection between the spout 5 and the spout bottom plate 6 more firm.

Embodiment 3

[0036] This embodiment is basically the same as the previous embodiment, and it is particularly pointed out that:

[0037] In this embodiment, each spout 5 is fixedly connected to the spout bottom plate 6 by welding, and the weld is on the outside of the spout 5 to reduce thermal shock to the weld, increase the overall service life of the equipment, and ensure the stability of the equipment.

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Abstract

The invention discloses a nozzle device for annealing a coiled material. The nozzle device is suitable for performing annealing treatment on the coiled material with a typical specification. The nozzle device is located on flow guide boxes on the two sides of a hearth and fixed to vertical flow guide box bodies through bolts. Nozzles are distributed in a rhombus layout form, and all the nozzles are distributed in the inner and outer diameter area of a typical material coil. Punch forming is performed on a thin-walled steel pipe to form each nozzle, and the punched end of each steel pipe is a flared curved surface. By means of the nozzle device, the inner and outer circle temperature difference of the material coil in the temperature rising stage can be effectively reduced, meanwhile the heating speed of the material coil is increased, the annealing time is shortened, and the energy conservation effect and the consumption reduction effect are remarkable.

Description

technical field [0001] The invention relates to a coil heat treatment device, in particular to a coil annealing treatment device, which is applied in the technical field of metal material processing technology. Background technique [0002] Aluminum coil annealing is an important step in the production process of the non-ferrous metal industry, especially the aluminum industry. The process is to quickly heat the aluminum coil to the required annealing temperature, and then keep it for a period of time to complete the annealing process. The main purpose of aluminum coil annealing is: [0003] 1. Improve or eliminate various structural defects and residual stresses generated in the previous process, and prevent deformation or cracking of the coil in subsequent processing; [0004] 2. Adjust the mechanical properties of the coil to facilitate the next processing; [0005] 3. Refining the grains and improving the structure to improve the mechanical properties of the material. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/54C21D1/26
CPCC21D9/54C21D1/26
Inventor 黄宗南曹炼陆云鹏
Owner SHANGHAI UNIV
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