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

System and method for automatic adding flocculant

A technology of automatic addition and flocculant, applied in separation methods, chemical instruments and methods, precipitation separation, etc., can solve the problems of water source and flocculant waste, lack of coal slime water concentration and flow feedforward detection system, etc., to reduce overflow water Concentration, improving the yield of clean coal, saving the effect of consumption

Inactive Publication Date: 2007-05-09
TAIYUAN UNIV OF TECH
View PDF0 Cites 36 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The task of the present invention is to use a combination of computer and virtual instrument technology to control the system and method for automatically adding flocculants during the treatment of slime water in coal washing plants, so as to solve the problem of lack of coal in the process of coal slime water treatment in existing coal washing plants. The feed-forward detection system of muddy water concentration and flow rate, the hysteresis of the overflow concentration detection of the thickener, and manual valve control lead to the waste of water source and flocculant in the process of water-coal slime treatment, so as to save the amount of flocculant and increase the yield of clean coal , to reduce the concentration of overflow water, thereby providing an automatic flocculant adding system and method thereof

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
  • System and method for automatic adding flocculant
  • System and method for automatic adding flocculant
  • System and method for automatic adding flocculant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0019] The specific embodiment of the automatic flocculant adding system of the present invention includes: a dosing part, a main pipe flow concentration detection part, a coal slime interface detection part, and a control part.

[0020] Embodiments In Fig. 3 and Fig. 4, the dosing part mainly includes: a three-phase motor 16, a metering screw pump 1, a medicine storage tank 2, a liquid level sensor 3, an electric ball valve, and valve pipes. The three-phase motor 16 and the metering screw pump 1 are a set of screw pumps composed of one or more sets. The metering screw pump 1 is the main pipe dosing pipe 10 connected with the medicine storage box 2 through the pipeline and the stop valve, and the metering screw pump 16 sucks the flocculant solution from the medicine storage box through the concentration tank dosing pipe 13 and the slime water feeding pipe 15 and Slime water mix. The capacitive liquid level sensor or the ultrasonic liquid level sensor 3 is used to measure the ...

Embodiment approach 2

[0026] The present invention is used for the adding method of flocculant automatic adding system, in embodiment Fig. 1, at first detect the concentration and the flow rate of the coal slime water in the coal slime water feeding pipe 15 by main pipe concentration meter 8 and main pipe flowmeter 9, by industrial control machine 4 Calculate the amount of dry coal slime that will be added to the thickening tank, and control the frequency converter according to the amount of dry coal slime. The frequency converter controls the speed of the main pipe dosing motor 16, and the main pipe dosing motor 16 drives the screw pump 1 , The screw pump 1 discharges a certain amount of flocculant and is added to the slime water feed pipe 15 from the main pipe dosing pipe 10, that is, the feed-forward dosing part, forming a rough control of the flocculant. A liquid level sensor 3 and an electric ball valve 5 are installed in the medicine storage tank 2. When the liquid level is detected to be low,...

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

An automatic flocculant adding system for treating the sewage in coal dressing plant is composed of a feeding tube with flowmeter and concentration meter, concentrating pool, a detecting instrument on the interface of said concentrating pool, flocculant storage tank with ball valve, pump and sensor, flocculant adding tube, industrial computer, and electric control cabinet. Its method features that when liquid level is lower, the ball valve is opened to add flocculant under the control of industrial control computer and when liquid level is higher, the ball valve is closed and the concentration of overflowed liquid is determined while it is determined by industrial control computer that if the flocculant is added.

Description

technical field [0001] The invention relates to a coal washing plant coal slime water treatment system and method thereof, in particular to a coal washing plant automatic flocculant adding system and method during the coal slime water treatment process. Background technique [0002] Coal slime water treatment is an important and complex production process in coal washing plants. In the treatment of coal slime water, people generally use the method of adding polymer flocculants to accelerate the purification and precipitation of coal slime water, so that the coal slime water can be reused. The goal is to save water resources and reduce costs. The flocculant addition is an important and complicated process. Whether the flocculant is added in time or not, and the amount of addition are directly related to the concentration of the slime water clarified liquid and the speed of clarification, and are directly related to the clean coal washed out by the coal washing plant. quality...

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): B01D21/01B01D21/34
Inventor 寇子明高贵军吴娟卫进李军霞
Owner TAIYUAN UNIV OF TECH
Features
  • Generate Ideas
  • 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