Process and system thereof for forming upgraded lignite

A molding process, lignite technology, applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems of poor system stability, low safety performance, environmental pollution, etc., achieve the simplification of the return process, save investment costs, and reduce dust pollution Effect

Active Publication Date: 2010-12-15
SHANDONG TIANLI DRYING TECH & EQUIP
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of flammability, explosion, environmental pollution, low molding rate, poor system stability and low safety performance in the molding process of upgraded lignite, as well as the shortcomings of the existing molding process, and prov

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
  • Process and system thereof for forming upgraded lignite
  • Process and system thereof for forming upgraded lignite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] figure 1 Among them, the process of the present invention is:

[0028] 1) Send the lignite that meets the requirements of molding moisture content, temperature and particle size after drying, dehydration and quality upgrading into the molding device;

[0029] 2) The molding device extrudes lignite into coal molding, then screens the molding coal, and the qualified ones are transferred to the next step, and the unqualified ones are transferred to step 1);

[0030] 3) Qualified briquettes are air-cooled by air with water mist, and the cooled briquettes are sent into the finished product warehouse, and the coal powder / granules produced during cooling are sent back to step 1);

[0031] 4) The waste gas generated during cooling is collected and dedusted, then emptied or reused in other suitable sections, and the pulverized coal collected by the dedu...

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 relates to a process and a system thereof for forming upgraded lignite, solving the problems of inflammability, explosiveness, environment pollution, low forming rate, poor system stability, low safety performance and the like existing in the forming process of the upgraded lignite. The invention can save the construction cost, reduces the safety risk, decreases the coal dust pollution of a finished product conveying system and has the characteristics of safety, energy saving, environmental protection, high efficiency and stability. The method comprises the following steps of: (1) feeding the formed lignite which is subjected to drying and dehydration and upgrading treatment and meets the requirements for water content, the temperature and the granularity; (2) pressing the lignite into the molded lignite by using a molding device, screening the molded lignite and feeding the qualified molded lignite into next step and turning the unqualified molded lignite into the step (1); (3) air cooling the qualified molded lignite by adopting air with water fog, feeding the cooled molded lignite into a finished bin and feeding lignite powder/granules generated by cooling back tothe step (1); and (4) collecting waste gas generated by cooling, removing dust and emptying or recycling to other proper work sections and feeding the lignite power collected by a dust removing device into the step (1).

Description

technical field [0001] The invention relates to a technology and a system for forming upgraded lignite in industries such as electric power and coal. Background technique [0002] Due to its low calorific value, high water content, easy weathering and fragmentation, and easy spontaneous combustion, lignite has brought many difficulties to its combustion, transportation, and storage. After the lignite is dried and upgraded, it is made into a briquette with a certain particle size and compaction degree, which will make its performance better than that of the raw lignite coal in all aspects, and can effectively solve the problem that the lignite is easy to be weathered, broken, and spontaneously ignited during transportation and storage. question. Therefore, lignite drying and upgrading and molding technology has become one of the main research directions in lignite processing and application in recent years. The molding process of lignite is divided into a binder molding pro...

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
IPC IPC(8): C10L5/08
Inventor 吴广义王宏耀陈强张波赵洪波吴峰李帅俊罗光亮
Owner SHANDONG TIANLI DRYING TECH & EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap