Supercharge Your Innovation With Domain-Expert AI Agents!

Waste water and coke powder mixed solid fuel and its preparing method

A technology of solid fuel and coke powder, which is applied in the field of waste water coke powder mixed solid fuel and its preparation

Inactive Publication Date: 2005-05-18
SHENYANG DAVID ENVIRONMENT PROTECTION & ENERGY SAVING EQUIP LTD
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But how to make a kind of solid fuel suitable for coal-fired boilers and its preparation method with the wastewater coke powder mixture produced after the filtration and adsorption treatment of industrial wastewater and urban sewage as the main raw material, there has not been reported so far

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
  • Waste water and coke powder mixed solid fuel and its preparing method
  • Waste water and coke powder mixed solid fuel and its preparing method
  • Waste water and coke powder mixed solid fuel and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1: Add coal powder to the wastewater coke powder mixture after filtration and adsorption treatment of industrial wastewater and urban sewage to make wastewater coke powder mixed with solid fuel, which is used as fuel for circulating fluidized bed boilers.

[0057] (1) Making waste water coke powder mixed with solid fuel

[0058] Use low-temperature coke powder and silica coke powder to treat industrial wastewater and municipal sewage. Transport the wastewater coke powder mixture produced by filtration and adsorption treatment of industrial wastewater and urban sewage to the concentration tank 5 for sedimentation and dehydration, so that the water content of the wastewater coke powder mixture is reduced to 焦泥 = 30%. Circulating fluidized bed boiler requires fuel moisture content W 固 =15%, the selected bituminous coal powder, its water content W 煤 = 5.1%.

[0059] Calculated:

[0060] There is no need to add filter coke powder, and because W 固 =15%>4% does...

Embodiment 2

[0074] Example 2: Add coal powder to the wastewater coke powder mixture after filtration and adsorption treatment of industrial wastewater and urban sewage to prepare wastewater coke powder mixed with solid fuel, which is used as fuel for the grate boiler.

[0075] (1), preparation of waste water coke powder mixed solid fuel

[0076] Use lignite coke powder to treat industrial wastewater and municipal sewage. Transport the wastewater coke powder mixture produced by filtration and adsorption treatment of industrial wastewater and urban sewage to the concentration tank 5 for sedimentation and dehydration, so that the water content of the wastewater coke powder mixture is reduced to 固 =14%, through horizontal screw type sedimentation centrifuge 13 to the waste water coke powder mixture after the sedimentation dehydration is further dehydrated to W 焦泥 =22%, select lignite powder, its water content W 煤 = 2%.

[0077] Calculated:

[0078] There is no need to add filter coke powd...

Embodiment 3

[0091] Example 3: Add coal powder to the wastewater coke powder mixture after filtration and adsorption treatment of industrial wastewater and urban sewage to make wastewater coke powder mixed with solid fuel, which is used as fuel for pulverized coal boilers.

[0092] (1), preparation of waste water coke powder mixed solid fuel

[0093] Use metallurgical coke powder and gas coal coke powder to treat industrial wastewater and urban sewage. Transport the wastewater coke powder mixture after filtration and adsorption treatment of industrial wastewater and urban sewage to the concentration tank 5 for sedimentation and dehydration, so that the water content of the wastewater coke powder mixture is reduced to 固 ≤4%, the waste water coke powder mixture after sedimentation and dehydration is further dehydrated through the horizontal screw type sedimentation centrifugal dehydrator 13; its water content W 焦泥 =22%, choose bituminous coal powder, its water content W 煤 = 2%

[0094] Cal...

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
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a kind of mixed waste water-coke powder solid fuel and belongs to the field of industrial waste fuel and its preparation technology. Waste water coke powder after filtering and adsorbing industry effluent and city sewage is used as main material and mixed with flyash to make the mixed waste water-coke powder solid fuel. The mixed waste water-coke powder solid fuel contains waste water-coke powder in 25-80 wt% and flyash 20-75 wt%, and has heat value higher than 17 MJ / Kg. The preparation process includes concentration and deposition of waste water-coke powder, dewatering to water content lower than 30 %, computerized material detection, calculating material ratio, mixing the materials in a drying and mixing machine. The solid fuel is suitable for use in various kinds of boiler.

Description

technical field [0001] The invention belongs to the technical field of solid fuel with industrial waste residue and waste as basic raw materials and its preparation method, and in particular relates to a waste water coke powder mixed solid fuel and its preparation method. It is suitable for resource utilization and energy utilization of industrial waste residue, waste water, and waste after urban sewage treatment. Background technique [0002] Coke is an important industrial raw material and an important product of coal chemical industry. The application industry of coke usually requires that the powder content in the coke should not exceed a certain value, and the coke plant must screen the coke before the coke leaves the factory and the application enterprise before the coke is used. A large amount of coke powder is produced during the sieving process. Coke powder has light specific gravity, high carbon content, low ash and sulfur content, and high calorific value. Due t...

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): C10L5/48
Inventor 张大伟
Owner SHENYANG DAVID ENVIRONMENT PROTECTION & ENERGY SAVING EQUIP LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com