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

Fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverization system

A pulverizing system and countercurrent technology, which is applied in the preparation of block/powder fuel, block/powder supply/distribution, petroleum industry, etc., can solve environmental pollution, high cost of lignite upgrading technology, and limited use And other issues

Active Publication Date: 2015-04-01
NORTHEAST ELECTRIC POWER DESIGN INST CO LTD OF CHINA POWER ENG CONSULTING GRP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of natural properties and technical processes, the main problems in the mining and utilization of lignite include: (1) low calorific value and limited use
The upgrading of lignite also brings a lot of problems such as storage, packaging, transportation, spontaneous combustion, and environmental pollution after lignite upgrading, and the investment is huge
Moreover, it failed to coordinate with the lignite pulverization system of the power plant, which made various lignite upgrading technologies costly and failed to be popularized and applied.

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
  • Fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverization system
  • Fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverization system
  • Fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverization system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] like image 3 As shown, in the countercurrent furnace smoke drying and dehydration direct-blowing pulverization system before the three-medium fan mill, the raw coal bunker 1 is connected to the automatic scale 2, and the automatic scale 2 is connected to the coal feeder 3, and the coal feeder 3 is then connected to the coal feeder 3. Connect the down drying pipe 4, the down drying pipe 4 is connected to the fan coal mill 5, the fan coal mill 5 is connected to the coarse powder separator 6, and the coarse powder separator 6 is connected to the pulverized coal mixer 25, and the pulverized coal mixer 25 is connected to the coal powder The pulverized coal distributor 7 and the pulverized coal distributor 7 are connected to the burner 8 of the boiler 13 , and the downpipe 4 has a gas generator 34 . The upper part of the furnace of the boiler 13 has a smoke extraction port 14 which communicates with the first air inlet of the mixing chamber 15 . A blower 9 is arranged next ...

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

PropertyMeasurementUnit
heating valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses a fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverization system. A pulverized coal mixer is arranged between a coarse powder separator and a pulverized coal distributor. The upper part of the lower drying pipe is provided with a coal gas outlet which is communicated with a coal gas filter. A coal outlet of the coal gas filter is also communicated with the pulverized coal mixer, a gas outlet of the coal gas separator is communicated with a coal gas fan, the coal gas fan is also communicated with a coal gas cooler, the coal gas cooler is provided with a condensation water outlet and a coal gas outlet, and the coal gas outlet is communicated with a coal gas burner of a boiler. The fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverization system has advantages of improving the burn-up quality of brown coal so as to enhance the thermal efficiency of the coal, recovering a large quantity of water vapor, obviously reducing the size and the manufacturing cost of the boiler, realizing zero pollution discharge and the like.

Description

technical field [0001] The invention belongs to the technical field of coal power generation, and relates to lignite power generation technology, specifically, to a lignite drying and pulverizing system. Background technique [0002] Lignite, also known as charcoal, is mostly brown or brown-black. It is a kind of high volatile content (about 50%), high moisture content (25%-60%), high ash content (about 30%), low calorific value (about 3200kcal / kg), low ash melting point, easy to weather and fragment, easy to oxidize and spontaneously combust, and it is the mineral coal with the lowest degree of coalification. Lignite is mainly used as fuel in power plants, and can also be used as chemical raw materials, catalyst carriers, adsorbents, sewage purification and metal recovery. Due to the limitations of natural properties and technical processes, the main problems in the mining and utilization of lignite include: (1) low calorific value and limited use. Building coal power bas...

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 Patents(China)
IPC IPC(8): F23K1/00F23K3/00F23K5/00C10L5/00
Inventor 郭晓克肖峰施大钟李青山郭兆君郑乐宇施登宇
Owner NORTHEAST ELECTRIC POWER DESIGN INST CO LTD OF CHINA POWER ENG CONSULTING GRP
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