Unlock instant, AI-driven research and patent intelligence for your innovation.

Physicochemical-superconducting hgms coupling process method for scale inhibition of net circulating water system

A technology for purifying circulating water and circulating water, applied in the field of water treatment, can solve problems such as the residual operating cost of the treatment effect, and achieve the effects of good lattice distortion, increased concentration, and improved scale inhibition effect.

Active Publication Date: 2021-03-12
UNIV OF SCI & TECH BEIJING +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing anti-scaling technology is mainly to add anti-scaling and corrosion inhibitors, and achieve the expected anti-scaling effect by complexation and solubilization, lattice distortion and dispersion. The main problems are treatment effect, chemical residue and operation cost.

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
  • Physicochemical-superconducting hgms coupling process method for scale inhibition of net circulating water system
  • Physicochemical-superconducting hgms coupling process method for scale inhibition of net circulating water system
  • Physicochemical-superconducting hgms coupling process method for scale inhibition of net circulating water system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] For high hardness water whose hardness is above 350mg / L, the physicochemical-superconducting coupling process is used for treatment. First, NaOH is added to adjust the pH value. The amount of NaOH added is 265ppm. After adjustment, the appearance is as follows figure 1 As shown; then add flocculant (composed of 20-50% sodium silicate, 20-40% iron sulfate, 20-40% zinc sulfate and 5-30% sodium borate), the amount of flocculant added is 30ppm, and the flocculant is added later look like figure 2 As shown; then the circulating water that has formed small flocs enters the superconducting high-strength magnetic separation system, the magnetic field strength is 3.0T, and the flow rate is 600ml / L. The appearance of the superconducting treatment is as follows image 3 As shown; in this way, the hardness of circulating water can be reduced from about 415mg / L to below 100mg / L, the removal rate can be above 75%, the turbidity can be reduced to below 5mg / L, and the effect of anti-s...

Embodiment 2

[0037] The processing steps are the same as above, the addition amount of NaOH is 265ppm, the addition amount of flocculant (composed of 20-50% sodium silicate, 20-40% iron sulfate, 20-40% aluminum sulfate and 5-30% sodium borate) is 30ppm, and the flow rate Under the condition of 300mL / min, when the magnetic field strength is 4.0T, the circulating water hardness is 113mg / L.

Embodiment 3

[0039] The treatment steps are the same as above, the addition amount of NaOH is 265ppm, the addition amount of flocculant (composed of 20-50% sodium silicate, 20-40% iron sulfate, 20-40% zinc sulfate and 5-30% sodium borate) is 30ppm, and the magnetic field When the strength is 3.0T and the flow rate is 500mL / min, the circulating water hardness is 105mg / L.

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
hardnessaaaaaaaaaa
turbidityaaaaaaaaaa
clearance rateaaaaaaaaaa
Login to View More

Abstract

The invention provides a physicochemical-superconducting HGMS coupling process net circulating water system scale inhibition method, and belongs to the technical field of water treatment. According tothe method, first, the pH of circulating water is adjusted to enable irons such as calcium ions and magnesium ions in the water to be precipitated in a form of precipitation; then, a self-developed high-efficiency composite flocculant is added to capture precipitated microcrystalline particles and form small flocculation bodies; and finally, the circulating water in which the small flocculation bodies are formed enters a superconducting high-strength magnetic separation system, so that the flocculation bodies rapidly grow up and are separated from the water to completely remove formed scale bodies. A high-strength magnetic field provided by the superconducting HGMS technology in the method has the association of scale-forming ions in the circulating water, prevents the ions from being precipitated by crystallization on the surface of equipment and pipelines to form scales, and further has the function of causing lattice distortion and topographical changes during the precipitation ofthe ions in the form of crystals, and therefore, even if the ions are precipitated in the form of the crystals, the irons do not adhere to the surface of the equipment to form hard scales. The hardness removal rate of the method can reach up to 75%, and the scale inhibition effect is obvious.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a scale inhibition method for a net circulating water system of a physicochemical-superconducting HGMS coupling process. Background technique [0002] Circulating cooling water accounts for 70-80% of the entire industrial water. Therefore, for open circulating cooling water systems, increasing the concentration ratio is the key to saving water and reducing emissions, and the main factors that restrict the increase in the concentration ratio of circulating water are scaling and corrosion. question. As the concentration of circulating water increases, the concentration of scale-forming ions such as calcium and magnesium gradually increases. When the conditions are met, these ions will form carbonate, sulfate or sulfate precipitates in the form of crystals, and gradually A dense scale layer is formed on the surface of equipment and pipelines, which affects the heat exchange...

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 Patents(China)
IPC IPC(8): C02F9/12
CPCC02F1/484C02F1/5236C02F1/5281C02F1/66C02F9/00C02F2209/055C02F2209/09C02F2209/40C02F2303/22
Inventor 李素芹韩帅帅赵鑫熊国宏
Owner UNIV OF SCI & TECH BEIJING