Fly ash charcoal-removing parallel plate electrostatic separator and friction charged electrostatic field sorting process

An electrostatic separator, fly ash technology, applied in electrostatic effect separation, solid separation, chemical instruments and methods, etc., to achieve the effect of small maintenance, low power consumption and low operating cost

Inactive Publication Date: 2007-11-28
UNIV OF SCI & TECH BEIJING
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a parallel plate electrostatic separator for fly ash decarbonization and a triboelectric electrostatic field separation process, which solves the corresponding environmental problems caused by excessive residual carbon content in fly ash and the fly ash To solve the problem of comprehensive utilization, a low-cost, simple process, and high-efficiency fly ash electric separation and carbon removal device and process method are proposed

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
  • Fly ash charcoal-removing parallel plate electrostatic separator and friction charged electrostatic field sorting process
  • Fly ash charcoal-removing parallel plate electrostatic separator and friction charged electrostatic field sorting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Here, the present invention is further illustrated by examples. Two kinds of fly ash raw ash from a certain coal-fired power plant in Shaanxi are selected, which are characterized by a high loss on ignition index (8%-25%). Sorting is carried out by using the triboelectric electrostatic field sorting process shown in the accompanying drawing.

[0024] SiO 2

[0025] Operating process and conditions

[0026] The guide for the parallel plate electrostatic separator used had an inner diameter of 80 mm and an insertion depth h of 125 mm. First turn on the 2.1kV negative high voltage generator power supply to make the electrostatic separation chamber generate a high voltage electric field with a field strength of 200kV / m. And start the blower of each product to make the electrostatic separator system enter the working state. Then start the feeding system: first turn on the carrier gas blower of the pneumatic conveyor, and blow air to the pneumatic conveyor. A...

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
Granularityaaaaaaaaaa
Login to view more

Abstract

The present invention belongs to the field of mineral separating technology, and is especially electrostatic parallel plate separator and electrostatic separating process for separating carbon from fly ash. The electrostatic plate separator consists of one feeding device, one electrostatic parallel plate separating chamber and one kind of product collecting device. The dry fly ash material is separated electrostatically in the electrostatic parallel plate separating chamber to form three kinds of separated product, including fly ash, residual carbon grain and intermediate material, and the fly ash and the residual carbon grain are collected separately in the cyclone and bag collector in the product collecting device to obtain the ultimate fly ash product and residual carbon product. The present invention is one dry physical separation process, and has simple technological process, low running cost and no effluent.

Description

technical field [0001] The invention belongs to the technical field of mineral separation, and provides a parallel plate electrostatic separator for fly ash decarbonization and a triboelectric electrostatic field separation process. Background technique [0002] The design of the invention is based on the practical technology of comprehensive utilization of mineral resources and prevention and control of environmental pollution, and is a sorting device and process flow for removing unburned residual carbon in fly ash by using a high-voltage electrostatic field. As a product of pulverized coal combustion, fly ash is affected by raw materials and combustion conditions, and the undisturbed ash will more or less contain unburned organic matter, that is, unburned residual carbon. The excessive unburned carbon content in fly ash not only brings corresponding environmental problems, but also restricts the application of fly ash in many fields. [0003] The total annual discharge o...

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): B03C7/02B03C7/00
Inventor 王立刚刘柏谦
Owner UNIV OF SCI & TECH BEIJING
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