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

Coal slime drying device in coal washery utilizing waste heat of brick-firing tunnel kiln

A technology of tunnel kiln and coal washing plant, applied in the field of coal washing device, can solve the problem of consuming large heat energy, etc., and achieve the effects of energy saving, low equipment investment cost, and easy popularization and use.

Inactive Publication Date: 2015-07-22
XUZHOU ZHENFENG NEW TYPE WALL MATERIAL CO LTD
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the current coal slime drying process, drying coal slime with a water content of 24% into a product with a water content of less than 14% requires a lot of heat energy consumption
For example, a drying room with a daily washing capacity of 2,000 tons of raw coal for coal preparation needs to burn 36 tons of raw coal a day; at the same time, there is power consumption

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
  • Coal slime drying device in coal washery utilizing waste heat of brick-firing tunnel kiln

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A device for drying coal slime in a coal washing plant by using waste heat from a brick-fired tunnel kiln, characterized in that the slime drying device includes an induced draft fan I3, a drum dryer 4, a coal slime bin to be dried 6, and a feeding belt conveyor 5 , screw feeder 12, discharge belt conveyor 11 and coal slime finished product bin 10. The inlet of the induced draft fan I3 is connected to the tunnel kiln cooling section 1-2 of the brick firing tunnel kiln 1 through the air pipe I2; the outlet of the induced draft fan I3 is connected to the front end of the drum dryer 4 through the air pipe II2-1. The front end of the drum dryer 4 is provided with a feeding hopper 4-1; the coal slime to be dried in the slime bin 6 enters the drum dryer 4 through the feeding belt conveyor 5 and the feeding hopper 4-1. The rear end of the tumble dryer 4 is connected to the screw feeder 12 through the gas delivery pipe III2-2. The screw feeder 12 sends the dried finished coal ...

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 discloses a coal slime drying device in a coal washery utilizing waste heat of a brick-firing tunnel kiln, and relates to a coal-washing device. The hot air given out when the tunnel kiln is cooled is entered into a coal slime dying rotary dryer for coal washery production through an induced draft fan, and drying is conducted on high-water-content coal slime. The heat given out when a coal gangue perforated brick tunnel kiln is cooled is utilized, the energy is saved, and both the nation and the people are benefited. Noxious gas such as carbon monoxide and sulfur monoxide and dust generated in heating and drying process of the perforated brick tunnel kiln and the coal slime are filtered through a two stage filter, a nation-regulated emission standard is reached, and air pollution is avoided.

Description

technical field [0001] The invention relates to a coal washing device, in particular to a device for drying coal slime in a coal washing plant by using the waste heat of a brick-burning tunnel kiln. Background technique [0002] The coal gangue porous brick produced by using coal gangue, coal slime, coal preparation plant sludge, engineering waste residue, etc. has become a widely used wall material at present. Gangue porous bricks are sintered in a tunnel kiln. During the sintering process, coal gangue and coal slime participate in internal combustion; when coal gangue porous bricks enter the cooling section of the tunnel kiln for cooling, a large amount of heat will be emitted. Huge hot air is discharged into the air around the tunnel kiln. The hot air contains a large amount of harmful gases, such as dust, carbon monoxide, sulfur, etc., which seriously pollute the environment and affect the physical and mental health of workers. [0003] In the coal preparation enterpris...

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): F26B11/04F26B21/00F26B23/02F27D17/00
CPCY02P70/10
Inventor 赵路生孟宪勤
Owner XUZHOU ZHENFENG NEW TYPE WALL MATERIAL CO LTD
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