Supercharge Your Innovation With Domain-Expert AI Agents!

Flue gas desulfurizing wet process using waste marble slurry as absorbent

A wet flue gas desulfurization and marble technology, which is applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems of high process cost and low utilization rate of marble waste pulp waste resources, and achieve obvious and huge economic benefits Ecological benefits and economic benefits, the effect of protecting resources

Active Publication Date: 2016-12-14
华润电力(贺州)有限公司
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a wet flue gas desulfurization process using marble waste pulp as an absorbent to solve the problems of high process cost and low waste resource utilization rate of marble waste pulp in the existing desulfurization technology

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

[0027] S1. Unloading and unloading of waste marble slurry: discharge the waste marble slurry into the absorption tower pit. A filter screen is added at the entrance of the absorption tower pit. The filter screen is 40 meshes to obtain filtered marble waste slurry;

[0028] S2. Marble waste slurry preparation: transport the marble waste slurry filtered in step S1 to the limestone slurry tank B through a pit pump, add process water, and prepare a density of 1150kg / m 3 , Marble slurry with a concentration of 30%;

[0029] S3. The marble slurry prepared in step S2 is transported to the absorption tower for desulfurization reaction with the flue gas, and the pH value of the slurry in the absorption tower is 5.2;

[0030] S4. Transport the reacted absorption tower slurry to the gypsum dehydration system for dehydration treatment.

[0031] The limestone slurry tank A is kept in normal standby mode. The limestone slurry in the slurry tank A is prepared from limestone powder, and the density of...

Embodiment 2

[0035] S1. Unloading and unloading of waste marble slurry: the waste marble slurry is discharged into the absorption tower pit, and a filter screen is added at the entrance of the absorption tower pit, and the filter screen is 120 meshes to obtain filtered marble waste slurry;

[0036] S2. Marble waste slurry preparation: transport the marble waste slurry filtered in step S1 to the limestone slurry tank B through a pit pump, add process water, and prepare a density of 1250kg / m 3 , Marble slurry with a concentration of 35%;

[0037] S3. The marble slurry prepared in step S2 is transported to the absorption tower for desulfurization reaction with the flue gas, and the pH value of the slurry in the absorption tower is 5.6;

[0038] S4. Transport the reacted absorption tower slurry to the gypsum dehydration system for dehydration treatment.

[0039] The limestone slurry tank A is kept in normal standby mode. The limestone slurry in the slurry tank A is prepared from limestone powder, and t...

Embodiment 3

[0043] S1. Marble waste slurry receiving and unloading: a box with a filter screen is set at the limestone powder preparation system, the size is 2200mm×1000mm×800mm, the filter screen is 80 mesh, the marble waste slurry is discharged into the box through the filter, and then passed through the box The pipe connected to the lower opening is drained to the pit of the limestone preparation area to obtain filtered marble waste slurry;

[0044] S2. Marble waste slurry preparation: transport the marble waste slurry filtered in step S1 to the limestone slurry tank B through a pit pump, add process water, and prepare a density of 1200kg / m 3 , Marble slurry with a concentration of 33%;

[0045] S3. The marble slurry prepared in step S2 is transported to the absorption tower for desulfurization reaction with the flue gas, and the pH value of the slurry in the absorption tower is 5.5;

[0046] S4. Transport the reacted absorption tower slurry to the gypsum dehydration system for dehydration tr...

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
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a flue gas desulfurizing wet process using waste marble slurry as an absorbent. The flue gas desulfurizing wet process comprises the following steps: discharging the waste marble slurry, preparing the waste marble slurry, performing a desulfurizing reaction, performing gypsum dehydration treatment and the like. By the flue gas desulfurizing wet process, the blending amount of the waste marble slurry can be strictly controlled, the polyacrylamide content of the waste marble slurry is reduced, and influence on a desulfurizing reaction process is avoided; meanwhile, by the flue gas desulfurizing wet process, the waste marble slurry is recycled and wastes are turned into treasures, so that the using amount of limestone is reduced and the resource cost is greatly lowered.

Description

Technical field [0001] The invention relates to the field of flue gas desulfurization processes in thermal power plants, and in particular to a wet flue gas desulfurization process using marble waste slurry as an absorbent. Background technique [0002] The commonly used desulfurization processes in existing thermal power plants mainly include limestone-gypsum wet flue gas desulfurization, flue gas circulating fluidized bed desulfurization, spray drying desulfurization, furnace calcium injection tail gas humidification and activation desulfurization, seawater desulfurization, and electronics Beam desulfurization, etc. At present, limestone-gypsum wet flue gas desulfurization is widely used, and the absorbent for desulfurization is limestone. Through the powder feeder, the limestone powder is input into the mixing box and mixed with the reuse water to form a limestone powder slurry, which enters the slurry tank. The limestone slurry is delivered to the flue gas absorption tower ...

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): B01D53/80B01D53/48
CPCB01D53/48B01D53/80B01D2258/0283
Inventor 吕新锋郭瑞来廖开太张毓坤
Owner 华润电力(贺州)有限公司
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