Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Wide and thick plate roller hearth furnace system with severe convection circulating devices

A circulation device and strong convection technology, applied in furnaces, heat treatment furnaces, manufacturing tools, etc., can solve problems affecting the mechanical properties and quality of wide and thick plates, uneven heating temperature of wide and thick plates, and large flue gas temperature gradient, etc., to achieve shortened surface The effect of temperature time, ensuring temperature uniformity, and improving heat transfer speed

Pending Publication Date: 2018-09-18
ТЕНОВА ТЕКНОЛОДЖИЗ (ТЯНЬЦЗИНЬ) КО., ЛТД.
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a relatively large flue gas temperature gradient in the furnace
This will lead to uneven heating temperature of the wide and thick plate, which will affect the mechanical properties and quality of the wide and thick plate
[0006] In order to improve the uniformity of the flue gas temperature in the furnace and meet the heat treatment process requirements of the plate temperature uniformity ≤±5°C during low-temperature tempering, some enterprises set up stirring fans in the heat preservation section of the roller hearth furnace to enhance the mixing and stirring of the flue gas. , also played a certain effect, but the effect is not significant

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wide and thick plate roller hearth furnace system with severe convection circulating devices
  • Wide and thick plate roller hearth furnace system with severe convection circulating devices
  • Wide and thick plate roller hearth furnace system with severe convection circulating devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should no...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a wide and thick plate roller hearth furnace system with severe convection circulating devices. In the furnace length direction, the multiple flue gas severe convection circulating devices are arranged on the upper portions of furnace rollers of a heat preservation segment of a wide and thick plate low-temperature tempering roller hearth furnace. Each flue gas severe convection circulating device comprises a centrifugal fan, a flow guide air suction pipeline, a flow guide air outlet pipeline and an upper nozzle, wherein a flame spray-out opening of the upper muzzle is connected with the flow guide air suction pipeline, an air suction opening of the centrifugal fan is connected with the flow guide air suction pipeline, and an air outlet of the centrifugal fan is connected with the flow guide air outlet pipeline. The adjacent flue gas severe convection circulating devices are connected end to end. According to the wide and thick plate roller hearth furnace system,uniformity of flue gas temperature and control precision of the flue gas temperature can be achieved better, and therefore temperature uniformity of wide and thick plates is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of low-temperature tempering of wide and thick plates, and in particular relates to a roller hearth furnace system for wide and thick plates with a strong convection circulation device. Background technique [0002] People usually call steel plates with a thickness of more than 4mm and a width of more than 2800mm as wide and thick steel plates, commonly known as wide and thick plates. [0003] Wide and thick plates are widely used, mainly used in the construction of large bridges, high pressure boilers, pressure vessels, tanks, armored vehicles, large ships, aircraft carriers, etc. In order to achieve the required mechanical properties of certain brands of wide and thick plates (for example, high-strength wear-resistant steel plates), its heat treatment process usually adopts quenching + low temperature tempering. The quenched structure of the wide and thick plate is mainly martensite, and its volume percen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C21D9/00C21D1/18
CPCC21D1/18C21D9/0006C21D9/0081
Inventor 丁世军韩江孝
Owner ТЕНОВА ТЕКНОЛОДЖИЗ (ТЯНЬЦЗИНЬ) КО., ЛТД.
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com