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

Oily sludge-based granular fuel and preparation method thereof

A technology of granulation and sludge, which is applied in the field of oily sludge-based granulated fuel and its preparation, can solve the problems of insufficient combustion of oily sludge, and achieve the effects of easy industrial application, small environmental impact and low production cost.

Pending Publication Date: 2020-09-15
XI'AN PETROLEUM UNIVERSITY +2
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to solve the problem of insufficient combustion of oily sludge due to lack of oxygen in the existing reduced oily sludge combustion treatment method, and to provide a method that can completely burn oily sludge, and after combustion Oily sludge-based granular fuel with residue oil content lower than 0.3%, and preparation method of the fuel

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]At normal temperature and pressure, mix 50g of silane-modified polyether and 100g of acrylonitrile-butadiene-styrene copolymer evenly, pour it into a screw injection molding machine and heat it to 150°C to reach a molten state, and then stir at 80rpm Next, use an oxygen generator to fill 0.8L of oxygen with a purity of more than 95% into the molten mixture in the screw injection molding machine. Spherical oxygen-containing microcapsules with a content of more than 95%. At the same time, under stirring, the oily sludge produced in the sewage treatment process is reduced (oil content 4.25%, water content 38.13%, solid matter content 57.62%) and oxygen-containing microcapsules are passed through the mixer at a volume ratio of 10:1 Mix thoroughly and evenly, and the mixing time of the mixer is 10 minutes. After the uniform mixing, the mixed material is poured into the mold, and it is demoulded after being placed at room temperature for 24 hours, so as to obtain the oily slud...

Embodiment 2

[0034] At normal temperature and pressure, mix 100g of silane-modified polyether and 200g of acrylonitrile-butadiene-styrene copolymer and polycarbonate with a mass ratio of 3:1 and pour it into a screw injection molding machine and heat it to 180 ℃ to make it reach a molten state, and then at a stirring speed of 50rpm, use an oxygen generator to fill the molten mixture in the screw injection molding machine with 1.5L of oxygen with a purity of more than 95%, and the pressure of the oxygen is 1.5atm, stirring After 20 minutes, a spherical oxygen-containing microcapsule with a thickness of 0.07-0.09mm and an oxygen content of more than 95% in the capsule is formed. At the same time, under stirring, the oily sludge (oil content 7.33%, water content 49.94%, solid matter content 42.73%) after reduction treatment and oxygen-containing microcapsules are fully mixed with a volume ratio of 7:1 by a mixer Uniformity, the mixing time of the mixer is 12min, the mixed material after mixin...

Embodiment 3

[0037] At normal temperature and pressure, mix 150g of silane-modified polyether and 300g of acrylonitrile-butadiene-styrene copolymer evenly, pour it into a screw injection molding machine and heat it to 200°C to make it reach a molten state, and then stir at a speed of 60rpm Next, use an oxygen generator to fill 2.4L of oxygen with a purity of more than 95% into the molten mixture in the screw injection molding machine. Ellipse-shaped oxygen-containing microcapsules with a content of more than 95%. At the same time, under agitation, the oil mining land sludge (oil content 20.15%, water content 25.35%, solid matter content 56.5%) and oxygen-containing microcapsules are fully mixed uniformly by a mixer at a volume ratio of 4:1 after the reduction treatment , the mixing time of the mixer is 15min, and the mixed material is poured into the mold after being uniformly stirred, and demolded after being placed at room temperature for 24h, and the oily sludge-based granulated fuel is...

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
thicknessaaaaaaaaaa
heating valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses an oily sludge-based granular fuel and a preparation method thereof. The preparation method comprises the following steps: by taking silane modified polyether or silane modified polyurethane as an inducer for forming microcapsules and taking a polymer as a shell material of the microcapsules, mixing the silane modified polyether or silane modified polyurethane and the polymer according to a certain ratio, heating to a molten state, and introducing oxygen while stirring to form microcapsules containing oxygen insidde; and adding the reduced oily sludge, uniformly stirring, injecting the obtained mixture into a mold, cooling, and demolding to obtain the oily sludge-based granular fuel. When the combustion temperature of the granular fuel is higher than 200 DEG C, thegranular fuel is combusted, and the oxygen-containing microcapsules are melted to release wrapped oxygen, so that the oily sludge is promoted to be fully combusted, the problem of insufficient incineration treatment caused by non-uniformity of the oily sludge is solved, the incineration treatment efficiency of the oily sludge is greatly improved, and harmless treatment and environmental protectionof the oily sludge are facilitated.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment, and in particular relates to an oily sludge-based granular fuel and a preparation method thereof. Background technique [0002] Oily sludge contains a large amount of organic matter, high water content, large volume, and also contains a large amount of heavy oil and volatile hydrocarbons, which has been included in the "National Hazardous Waste List" (HW08). [0003] In recent years, scholars at home and abroad have proposed a sludge treatment method of reduction + incineration technology. This method first reduces the sludge to reduce its moisture content to below 60%, and then performs combustion treatment. The recovered heat can meet the needs of heating in the process of sludge reduction treatment. [0004] Usually, after the oily sludge is concentrated and dehydrated, the water content is still above 60%, the oil content is about 5% to 10%, and its calorific value is about 18000kJ / ...

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): C10L5/46
CPCC10L5/46Y02E50/30Y02E50/10
Inventor 鱼涛屈撑囤张乐蔡乾锋陈磊胡海杰李金灵杨博
Owner XI'AN PETROLEUM UNIVERSITY
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