Vacuum degasification system steam jet and last stage pressure air injection vacuum technology

An air injection and vacuum degassing technology, which is applied in the field of vacuum degassing systems in the metallurgical industry, can solve the problems of high maintenance and repair costs of water ring pump system equipment, increased power consumption of the system, and mechanical wear of equipment.

Inactive Publication Date: 2009-08-12
BAOSTEEL ENG & TECH GRP
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] (3) The power consumption of the system increases, especially when the water ring pump is not vacuumed, the water ring pump needs to run at low load for a long time
[0022] (4) There are equipment mechanical wear and shaft seal leakage in the operatio

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
  • Vacuum degasification system steam jet and last stage pressure air injection vacuum technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Referring to accompanying drawing, according to a kind of vacuum degassing system steam injection of the present invention adds the vacuum process of final stage pressure air injection, take following vacuum process flow:

[0039] Vacuum cycle degassing method RH vacuum smelting waste gas → vacuum main valve → gas cooler → first stage SE1 steam jet vacuum pump → second stage SE2 steam jet vacuum pump → first stage C1 condenser → third stage SE3a, SE3b, SE3c steam Jet vacuum pump → second stage C2 condenser, → fourth stage SE4a, SE4b pressure air jet vacuum pump → discharge atmosphere buffer tank → exhaust atmosphere.

[0040] 1. Vacuum circulation degassing method (RH) vacuum smelting waste gas: RH vacuum smelting is to discharge waste gas (H 2 , O 2 , N 2 and other harmful gases) to ensure the quality of finished steel. The purpose of installing a vacuum pump is to create a vacuum condition for vacuum smelting. In a vacuum state, the temperature of the dusty waste g...

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 relates to a vacuum process of steam injection and final pressure air injection of a vacuum degassing system, which adopts the following vacuum process flow: RH vacuum smelting of exhaust gas by a circulation vacuum degassing method, main vacuum valve, gas cooler, primary SE1 steam injection vacuum pump, secondary SE2 steam injection vacuum pump, primary C1 condenser, tertiary SE3a steam injection vacuum pump, tertiary SE3b steam injection vacuum pump and tertiary SE3c steam injection vacuum pump and secondary C2 condenser; and secondary C2 condenser, quartus SE4a pressure air injection vacuum pump and quartus SE4b pressure air injection vacuum pump, atmospheric emission buffer tank and atmospheric emission. According to the vacuum process flow, steam injection vacuum pumps and final pressure air injection vacuum pumps are adopted, and the vacuum system adopts dynamic vacuum pumps and does not adopt mechanical positive displacement pumps; final pumps adopt pressure air with low price; and the vacuum system has advantages in the aspects of equipment number, land occupation, investment, operation reliability, maintenance and overhaul and the like.

Description

technical field [0001] The invention relates to a vacuum degassing system in the metallurgical industry, in particular to a vacuum process flow of a steam jet vacuum pump plus an air jet vacuum pump at the final stage of pressure in a vacuum degassing smelting process. Background technique [0002] Steam jet vacuum pump is an essential equipment for vacuum degassing smelting process in metallurgical industry. The existing steam jet vacuum degassing usually adopts a mature full steam jet vacuum pump, but because the full steam jet vacuum pump consumes a large amount of steam, in order to reduce the energy consumption of the full steam jet vacuum pump, the full steam jet vacuum pump uses a steam jet pump plus the final stage The vacuum smelting process of water ring pump has been gradually applied in engineering. [0003] The following is a brief introduction to the vacuum smelting process of the steam jet pump plus the final water ring pump. [0004] Vacuum circulation dega...

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): C21C7/10
Inventor 戴鸿宽
Owner BAOSTEEL ENG & TECH GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap