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

Device and method for recovering and purifying flue gas and residual anode waste heat of aluminum discharge ladle

A waste heat recovery and flue gas technology, applied in the field of cleaner production, can solve problems such as unorganized emission pollution, and achieve the effects of energy saving, good working environment and simple process

Pending Publication Date: 2022-04-29
云南神火铝业有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a device and method for recovering and purifying flue gas from aluminum ladle and residual anode waste heat. The exhausted air contains aluminum powder and other flue gas, and after being utilized by the waste heat of the new anode preheating box, it enters the electrolytic cell through a pipeline. The flue gas exhaust main pipe enters the purification system together with the electrolytic flue gas for recovery, and then discharges it into the atmosphere. In addition, the new anode preheating box also achieves the effect of recovering waste heat, which not only solves the problem of fugitive emission pollution of flue gas, It not only makes the aluminum production more economical, environmentally friendly and efficient, but also can effectively improve the workshop environment and create a good working environment for employees

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
  • Device and method for recovering and purifying flue gas and residual anode waste heat of aluminum discharge ladle
  • Device and method for recovering and purifying flue gas and residual anode waste heat of aluminum discharge ladle
  • Device and method for recovering and purifying flue gas and residual anode waste heat of aluminum discharge ladle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The device for recovering and purifying flue gas from the aluminum ladle and the waste heat of the residual anode, including an aluminum electrolytic cell 1, an aluminum ladle 2, and an ejector 3, and an aluminum suction pipe 4 is arranged between the electrolytic cell 1 and the aluminum ladle 2 , an ejector 3 is provided on the aluminum ladle 2, the ejector exhaust outlet quick joint 19 of the ejector 3 is connected with the ejector exhaust connection pipe 5, and the ejector 3 is connected with the ejector inlet pipe 20, The ejector tail gas connecting pipe 5 is connected to one end of the steel pipe 11 arranged on the aluminum electrolytic cell 1, and the other end of the steel pipe 11 is connected to the smoke exhaust main pipe 17. The lower part of the tank is laid, and a hose 6 is provided between the steel pipe 11 and the ejector exhaust pipe 5, and a new anode preheating box 21 is arranged before the ejector exhaust pipe 5 and the hose 6, and the hose 6 and the st...

Embodiment 2

[0028] On the basis of Example 1, the residual heat of the residual carbon block is used to preheat the new anode carbon block before the carbon block is replaced, and the new anode preheating box can be used alone, and the exhaust gas of the residual electrode and the flue gas of the electrolytic cell are discharged into the Flue gas purification system.

[0029]The new anode preheating box 21 is provided with an air intake pipe 22 in the middle of one side, and a flue gas outlet pipe 23 on the top of the opposite side. The flue gas outlet pipe 23 of the new anode preheating box 21 is connected to the valve one 7 through the quick joint of the air pipe An induced draft fan is arranged in the air pipe between the flue gas outlet pipe 23 and the valve one 7, a new anode preheating box 24 is arranged at the end of the air inlet pipe 22, and a partition 25 is arranged in the new anode preheating box 24 to preheat the new anode The box 24 is divided into a placement chamber 26 and...

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 belongs to the technical field of clean production, and particularly relates to a device and a method for recycling and purifying flue gas and residual anode waste heat of an aluminum discharge ladle. Comprising an aluminum electrolysis cell, a vacuum ladle and an ejector, an aluminum suction pipe is arranged between the aluminum electrolysis cell and the vacuum ladle, the ejector is arranged on the vacuum ladle, an ejector tail gas outlet of the ejector is connected with an ejector tail gas connecting pipe, the ejector is connected with an ejector gas inlet pipe, a vacuum gas inlet pipe is arranged on the ejector gas inlet pipe, and a vacuum gas outlet pipe is arranged on the vacuum gas inlet pipe. The vacuum gas inlet pipe is provided with a conical joint, the conical joint is connected with a compressed air rubber hose joint, and the ejector tail gas connecting pipe is connected with one end of a steel pipe I arranged on the aluminum electrolysis cell; the aluminum discharging operation is more economical, environmentally friendly and efficient, the workshop environment can be effectively improved, and a good working environment is created for workers.

Description

technical field [0001] The invention belongs to the technical field of clean production, in particular to a device and a method for recovering and purifying the flue gas and residual heat of aluminum ladle ladle. Background technique [0002] The aluminum ladle is an important equipment in the process of electrolytic aluminum smelting. It is a device for the aluminum electrolysis workshop to suck out and collect the liquid aluminum in the electrolytic cell. During the aluminum tapping process, when the aluminum suction tube is inserted into the electrolytic cell, Inevitably, a certain amount of electrolyte enters the aluminum suction tube, and under the vacuum of the aluminum ladle, this part of the electrolyte enters the aluminum ladle together with the aluminum liquid. The electrolyte entering the aluminum ladle, under the action of vacuum, accelerates gasification and is discharged out of the aluminum ladle with the jet tail gas. If this part of fluoride is directly disc...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/06C25C3/08C25C3/22
CPCC25C3/06C25C3/08C25C3/22
Inventor 张文章高文义张坤王攀刘昆鹏唐凤凯朱海献练新强黄峰
Owner 云南神火铝业有限公司
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