CN108821450B - Online scale inhibition, killing and descaling method and system for continuous casting crystallizer - Google Patents
Online scale inhibition, killing and descaling method and system for continuous casting crystallizer Download PDFInfo
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- CN108821450B CN108821450B CN201810711497.6A CN201810711497A CN108821450B CN 108821450 B CN108821450 B CN 108821450B CN 201810711497 A CN201810711497 A CN 201810711497A CN 108821450 B CN108821450 B CN 108821450B
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 146
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 178
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 127
- 239000010410 layer Substances 0.000 claims abstract description 22
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000010790 dilution Methods 0.000 claims abstract description 3
- 239000012895 dilution Substances 0.000 claims abstract description 3
- 239000011521 glass Substances 0.000 claims description 7
- 238000007865 diluting Methods 0.000 claims description 4
- 244000005700 microbiome Species 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 18
- 239000010959 steel Substances 0.000 abstract description 18
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 229910001208 Crucible steel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001415288 Coccidae Species 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
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Abstract
The invention discloses a method and a system for online scale inhibition, killing of organisms and scale removal of a continuous casting crystallizer, wherein the method comprises the following steps of a, adding high-concentration ozone water into a pipeline at the water inlet end of the continuous casting crystallizer for dilution, and then, feeding the diluted ozone water into the continuous casting crystallizer along the water flow direction; b. respectively carrying out online detection on the concentration of the ozone water on pipelines connected with the water inlet end and the water outlet end of the continuous casting crystallizer, and adjusting the adding amount of high-concentration ozone water in real time according to the detection results of the concentration of the ozone water at the water inlet end and the water outlet end; c. sending the ozone water passing through the continuous casting crystallizer from the water outlet end of the continuous casting crystallizer into a main water outlet pipeline through a pipeline to be discharged; d. and wiping off a soft scaling layer remained on the surface layer of the continuous casting crystallizer. The invention can realize the on-line scale inhibition, killing and descaling of the domestic continuous casting crystallizer, realize the long-period continuous casting steel, improve the steel passing amount of the domestic continuous casting crystallizer continuous casting steel, has low operation cost and strong practicability, and can realize a new mode of adding less or no agent in a water treatment system in the metallurgical industry.
Description
Technical Field
The invention belongs to the field of metallurgy, relates to a continuous casting and profile steel production process and a water treatment system in the metallurgical industry, and particularly relates to a solution of a process technology for interrupting cast steel production and reducing efficiency due to scaling of a cooling surface of a crystallizer in the continuous casting production process of metallurgy.
Background
The metallurgical continuous casting technology is introduced into China abroad in the eighties, the process technology changes the laggard process of the traditional cast steel die casting, realizes the purposes of multiple specifications, large yield and high yield of cast steel products, and is a qualitative leap of the cast steel process technology; although the continuous casting technology is quite mature, the working efficiency is still limited by various factors, and a small square billet continuous casting crystallizer is taken as an example, and the operation data of various steel works in China shows that the average continuous casting steel of the domestic continuous casting crystallizer is generally in a 480-plus 510 furnace, so that the main reason of low efficiency is that the surface of the continuous casting crystallizer is locally scaled, the heat dissipation of the crystallizer is uneven, quality accidents such as steel billet drawing crack, steel leakage and the like occur, and the steel passing amount of the continuous casting steel is further influenced.
Disclosure of Invention
Aiming at the problem of uneven heat dissipation caused by scaling on the surface of a continuous casting crystallizer in the prior art, the invention provides a method and a system for online scale inhibition, killing and descaling of the continuous casting crystallizer, which realize online scale inhibition, killing and descaling of the domestic continuous casting crystallizer, realize long-period continuous casting steel, improve the steel passing amount of the domestic continuous casting crystallizer continuous casting steel, realize a new mode of adding less or no agent in a water treatment system, and create a new green and environment-friendly way for a steelmaking continuous casting system in the metallurgical industry in the aspect of water treatment technology application.
The technical scheme for solving the technical problem of the invention is as follows:
the invention relates to an online scale inhibition, killing and descaling method for a continuous casting crystallizer, which comprises the following steps:
a, feeding high-concentration ozone water into a pipeline connected with the water inlet end of a continuous casting crystallizer for dilution, and then feeding the diluted ozone water into the continuous casting crystallizer along the water flow direction;
b, respectively carrying out online detection on the concentration of the ozone water in a pipeline connected with the water inlet end and the water outlet end of the continuous casting crystallizer, and adjusting the feeding amount of high-concentration ozone water in real time according to the detection result of the concentration of the ozone water in the water inlet end and the water outlet end of the continuous casting crystallizer so as to meet the requirements of online scale inhibition, killing of organisms and scale removal of the continuous casting crystallizer;
c, conveying the ozone water passing through the continuous casting crystallizer from the water outlet end of the continuous casting crystallizer into a main water outlet pipeline through a pipeline to be discharged;
and d, erasing a loose soft scaling layer which is formed and remained after the scaling layer on the surface layer of the continuous casting crystallizer is treated by ozone water.
As a further improvement of the technical scheme, in the step b, when the adding amount of the high-concentration ozone water is adjusted in real time, the concentration of the ozone water at the water inlet end of the continuous casting crystallizer is kept to be 0.6 mg/l-1.2 mg/l, and the concentration of the ozone water at the water outlet end is kept to be 0.5 mg/l.
During application, thirty minutes before continuous casting machine steel drawing, the method of the technical scheme can be used for on-line scale inhibition, killing of microbes and descaling on the continuous casting crystallizer, so that the long-period continuous casting of the domestic continuous casting crystallizer is improved.
Another technical solution to solve the technical problem of the present invention is as follows:
the invention relates to an online scale inhibition, killing and descaling system of a continuous casting crystallizer, which comprises a continuous casting crystallizer, a main water inlet pipeline, a main water outlet pipeline, an ozone adding device, a pipeline mixer, a first ozone concentration detector and a second ozone concentration detector, wherein the water inlet end and the water outlet end of the continuous casting crystallizer are respectively connected with the main water inlet pipeline and the main water outlet pipeline through pipelines; the pipeline mixer is arranged on a pipeline connected with the water inlet end of the continuous casting crystallizer; the ozone adding device is connected with the pipeline mixer through a pipeline; the first ozone concentration detector is arranged on a pipeline between the water inlet end of the continuous casting crystallizer and the pipeline mixer; and the second ozone concentration detector is arranged on a pipeline at the water outlet end of the continuous casting crystallizer.
As a further improvement of the technical scheme, the water inlet end and the water outlet end of the continuous casting crystallizer are connected with two ends of a piece hanging device through pipelines.
As a further improvement of the technical scheme, an industrial sight glass is arranged at the tail end of the continuous casting crystallizer, and the industrial sight glass is connected with a display through a line.
As a further improvement of the technical scheme, a first valve is arranged on a pipeline between the ozone adding device and the pipeline mixer, a second valve is arranged between the first ozone concentration detector and the pipeline connected with the water inlet end of the continuous casting crystallizer, a third valve is arranged between the second ozone concentration detector and the pipeline connected with the water outlet end of the continuous casting crystallizer, and the first valve is a one-way valve.
As a further improvement of the technical scheme, a fourth valve and a fifth valve are respectively arranged on pipelines connecting the water inlet end and the water outlet end of the continuous casting crystallizer and the two ends of the plate hanging device.
As a further improvement of the technical scheme, the ozone output of the ozone adding device is 100 g/h.
Compared with the prior art, the online scale inhibition, killing and descaling method for the continuous casting crystallizer is characterized in that scale inhibition, killing and descaling are innovatively carried out through ozone, and the ozone water has the effects of killing bacteria, inhibiting algae regeneration, loosening scale layer and the like on the water environment of the continuous casting crystallizer, so that the domestic continuous casting crystallizer can continuously cast steel for a long period, the aim of improving the steel passing amount of a continuous casting machine is fulfilled, and meanwhile, the ozone water is easy to prepare and deliver, low in operation cost, free of pollution, only consumes electric energy and good in effect; the online scale inhibition, killing and descaling system for the continuous casting crystallizer, disclosed by the invention, has a simple and reasonable structure, uses common equipment in a factory, is easy to select and assemble and use in various occasions, and has strong practicability.
Drawings
The invention is further described with reference to the following figures and detailed description:
FIG. 1 is a schematic diagram of an online scale inhibition, killing and removal system for a continuous casting crystallizer according to the present invention;
in the figure: 1. an ozone adding device; 2. a pipeline mixer; 3. a continuous casting crystallizer; 4. a film hanger; 5. an industrial sight glass; 6. a display; 7. a first ozone concentration detector; 8. a second ozone concentration detector; 9. a main water inlet pipe; 11. a first valve; 12. a second valve; 13. a third valve; 14. a fourth valve; 15. a fifth valve; 16. a main water outlet pipeline.
Detailed Description
Example 1:
the invention relates to an online scale inhibition, killing and descaling method for a continuous casting crystallizer, which comprises the following steps:
a, sending high-concentration ozone water into a pipeline connected with a water inlet end of a continuous casting crystallizer and diluting the high-concentration ozone water with water in the pipeline, then sending the diluted ozone water into the continuous casting crystallizer along with the water flow direction in the pipeline, and treating a scaling layer on the surface layer of the continuous casting crystallizer through the diluted ozone water; in the step, the high-concentration ozone water is compared with the concentration of diluted ozone water which is required to be treated in a conventional continuous casting crystallizer and is treated in a scaling layer in the continuous casting crystallizer, generally 10mg/l is taken as a reference, and the concentration of the high-concentration ozone water can be adjusted according to actual conditions, such as the size of the continuous casting crystallizer, the condition of water flow in a pipeline for diluting the high-concentration ozone water and the like, so that the high-concentration ozone water can meet the requirements of online scale inhibition, killing of microbes and scale removal of the continuous casting crystallizer after being diluted by the water flow in the pipeline; the diluted ozone water has the effects of killing bacteria, inhibiting algae regeneration, loosening a scale layer and the like on the water environment of the continuous casting crystallizer, can effectively meet the online scale inhibition, killing and descaling of the continuous casting crystallizer, and the scale layer on the surface layer of the continuous casting crystallizer can form a loose soft scale layer under the action of the ozone water, so that the cleaning is convenient;
b, respectively carrying out online detection on the concentration of the ozone water in a pipeline connected with the water inlet end and the water outlet end of the continuous casting crystallizer, and adjusting the feeding amount of high-concentration ozone water in real time according to the detection result of the concentration of the ozone water in the water inlet end and the water outlet end of the continuous casting crystallizer so as to meet the requirements of online scale inhibition, killing of organisms and scale removal of the continuous casting crystallizer; in order to enable the ozone water for scale inhibition, killing and descaling of the surface layer of the continuous casting crystallizer to meet production requirements and safety requirements, when the addition amount of the ozone is adjusted, the concentration of the ozone water at the water inlet end of the continuous casting crystallizer is kept at 0.6 mg/l-1.2 mg/l, and the concentration of the ozone water at the water outlet end is kept at 0.5 mg/l;
c, conveying the ozone water passing through the continuous casting crystallizer from the water outlet end of the continuous casting crystallizer into a main water outlet pipeline through a pipeline to be discharged;
and d, wiping off the soft scaling layer remained on the surface layer of the continuous casting crystallizer. The soft scaling layer is a loose soft scaling layer formed by processing the scaling layer in the continuous casting crystallizer with ozone water, one part of the soft scaling layer automatically falls off and is discharged along with the ozone water, and the residual soft scaling layer is easy to erase by cloth or other tools.
Example 2:
as shown in fig. 1, the system for online scale inhibition, killing of organisms and scale removal of the continuous casting crystallizer comprises a continuous casting crystallizer 3, a main water inlet pipeline 9, a main water outlet pipeline 16, an ozone adding device 1, a pipeline mixer 2, a first ozone concentration detector 7 and a second ozone concentration detector 8; the water inlet end and the water outlet end of the continuous casting crystallizer 3 are respectively connected with a main water inlet pipeline 9 and a main water outlet pipeline 16 through pipelines; the pipeline mixer 2 is arranged on a pipeline connected with the water inlet end of the continuous casting crystallizer 3; the ozone adding device 1 is connected with the pipeline mixer 2 through a pipeline; the first ozone concentration detector 7 is arranged on a pipeline between the water inlet end of the continuous casting crystallizer 3 and the pipeline mixer 2; and the second ozone concentration detector 8 is arranged on a pipeline connected with the water outlet end of the continuous casting crystallizer 3. In the embodiment, the ozone adding device 1 is used for preparing and delivering high-concentration ozone water, can be made by an ozone generator, and can also be made by an ozone adding machine for delivering ozone, and the ozone output of the ozone adding device 1 is generally ensured to be 100g/h so as to meet the requirements of online scale inhibition, killing of organisms and descaling of the continuous casting crystallizer 3; the pipeline mixer 2 is used for diluting the high-concentration ozone water generated by the ozone adding device 1 by using the water in the main water inlet pipeline 9 and conveying the high-concentration ozone water to the water inlet end of the continuous casting crystallizer 3.
In this embodiment, in order to facilitate monitoring of the scaling condition of the continuous casting crystallizer 3, the water inlet end and the water outlet end of the continuous casting crystallizer 3 are connected to two ends of a piece hanger 4 through pipelines, and the working flow of the piece hanger 4 is set correspondingly according to the flow parameters of the continuous casting crystallizer 3.
In this embodiment, in order to observe the scaling condition of the end of the continuous casting mold 3, an industrial sight glass 5 is installed at the end of the continuous casting mold 3, and the industrial sight glass 5 is connected to a display 6 through a line.
In this embodiment, in order to further improve the effect, a first valve 11 is arranged on a pipeline between the ozone adding device 1 and the pipeline mixer 2, a second valve 12 is arranged between the first ozone concentration detector 7 and a pipeline connected with the water inlet end of the continuous casting crystallizer 3, a third valve 13 is arranged between the second ozone concentration detector 8 and a pipeline connected with the water outlet end of the continuous casting crystallizer 3, wherein the first valve 11 is a one-way valve; and a fourth valve 14 and a fifth valve 15 are respectively arranged on pipelines connecting the water inlet end and the water outlet end of the continuous casting crystallizer 3 with the two ends of the plate hanging device 4.
During application, thirty minutes before continuous casting machine steel drawing, the system is operated, high-concentration ozone water generated by an ozone adding device 1 is sent into a pipeline mixer 2 and water sent in a main water inlet pipeline 9 through a pipeline to be diluted and then sent into a continuous casting crystallizer 3 along with water flow, the scale layer in the continuous casting crystallizer 3 is treated by ozone in the water, the ozone water concentrations of a water inlet end and a water outlet end of the continuous casting crystallizer 3 are respectively detected on line by a first ozone concentration detector 7 and a second ozone concentration detector 8, when the system is operated for the first time, the value of the first ozone concentration detector 7 at the water inlet end of the continuous casting crystallizer 3 is made to be 0.6mg/l by adjusting the adding amount of the high-concentration ozone water of the ozone adding device 1, the index value of the ozone concentration of the water outlet end of the continuous casting crystallizer 3 is set to be 0.5mg/l, and then the input amount of the high-concentration ozone water of the ozone adding device 1 is real-timely carried out according to the Adjusting to ensure that the value of the second ozone concentration detector 8 is kept at 0.5mg/l, and in order to ensure the normal and safe operation of the system in the operation process, the ozone input quantity of the ozone adding device 1 is adjusted to ensure that the ozone concentration value of the water inlet end of the continuous casting crystallizer 3 is 0.6 mg/l-1.2 mg/l, namely ensuring that the reading range of the first ozone concentration detector 7 is kept at 0.6 mg/l-1.2 mg/l; after the continuous casting crystallizer 3 is treated by the ozone water, the residual soft scaling layer can be erased by cloth or other cleaning tools.
The invention obtains good effect in the descaling work of the continuous casting crystallizer of the continuous casting machine in a certain area of the horse steel, ozone water has the functions of killing bacteria, inhibiting algae regeneration, loosening a scale layer and the like on the water environment of the continuous casting crystallizer, through the application of the invention, the continuous casting crystallizer added with the ozone water is observed on the surface layer of the continuous casting crystallizer detached from the continuous casting machine in the area, compared with the continuous casting crystallizer without ozone water, the surface layer of the continuous casting crystallizer treated by the ozone water is bright and clean, the area of the local scale layer on the surface is greatly reduced, the scale layer is obviously loosened, the loose scale layer can be easily removed by lightly wiping with cloth, meanwhile, no corrosion trace is found on the surface of the crystallizer, and the aim of improving the continuous steel passing amount of the domestic continuous casting crystallizer is fulfilled.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (8)
1. An online scale inhibition, killing and descaling method for a continuous casting crystallizer is characterized by comprising the following steps:
a, feeding high-concentration ozone water into a pipeline connected with a water inlet end of a continuous casting crystallizer for dilution, and then feeding the diluted ozone water into the continuous casting crystallizer along with the water flow direction;
b, respectively carrying out online detection on the concentration of the ozone water in a pipeline connected with the water inlet end and the water outlet end of the continuous casting crystallizer, and adjusting the feeding amount of high-concentration ozone water in real time according to the detection result of the concentration of the ozone water in the water inlet end and the water outlet end of the continuous casting crystallizer so as to meet the requirements of online scale inhibition, killing of organisms and scale removal of the continuous casting crystallizer; in the step, when the feeding amount of the high-concentration ozone water is adjusted in real time, the concentration of the ozone water at the water inlet end of the continuous casting crystallizer is kept between 0.6mg/l and 1.2mg/l, and the concentration of the ozone water at the water outlet end is kept between 0.5 mg/l;
c, conveying the ozone water passing through the continuous casting crystallizer from the water outlet end of the continuous casting crystallizer into a main water outlet pipeline through a pipeline to be discharged;
and d, wiping off a loose soft scaling layer remained on the surface layer of the continuous casting crystallizer.
2. A continuous casting crystallizer online scale inhibition, killing and descaling system comprises a continuous casting crystallizer (3), a main water inlet pipeline (9) and a main water outlet pipeline (16), wherein the water inlet end and the water outlet end of the continuous casting crystallizer (3) are respectively connected with the main water inlet pipeline (9) and the main water outlet pipeline (16) through pipelines, and the system is characterized by further comprising an ozone adding device (1), a pipeline mixer (2), a first ozone concentration detector (7) and a second ozone concentration detector (8); the pipeline mixer (2) is arranged on a pipeline connected with the water inlet end of the continuous casting crystallizer (3); the ozone adding device (1) is connected with the pipeline mixer (2) through a pipeline; the first ozone concentration detector (7) is arranged on a pipeline between the water inlet end of the continuous casting crystallizer (3) and the pipeline mixer (2); the second ozone concentration detector (8) is arranged on a pipeline connected with the water outlet end of the continuous casting crystallizer (3); the ozone adding device (1) is used for preparing and conveying ozone water, the pipeline mixer (2) is used for diluting the ozone water generated by the ozone adding device (1) by using water in the main water inlet pipeline (9) and conveying the diluted ozone water to the water inlet end of the continuous casting crystallizer (3), the reading range of the first ozone concentration detector (7) needs to be kept between 0.6mg/l and 1.2mg/l, namely the ozone water concentration at the water inlet end of the continuous casting crystallizer needs to be kept between 0.6mg/l and 1.2mg/l, the reading range of the second ozone concentration detector (8) needs to be kept between 0.5mg/l, and the ozone water concentration at the water outlet end of the continuous casting crystallizer needs to be kept between 0.5 mg/l.
3. The system for online scale inhibition, killing of microbes and scale removal of the continuous casting crystallizer as claimed in claim 2, wherein the water inlet end and the water outlet end of the continuous casting crystallizer (3) are connected with two ends of a piece hanging device (4) through pipelines.
4. The system for online scale inhibition, killing and descaling of the continuous casting crystallizer as claimed in claim 2 or 3, wherein an industrial sight glass (5) is installed at the tail end of the continuous casting crystallizer (3), and the industrial sight glass (5) is connected to a display (6) through a line.
5. The system for online scale inhibition, killing of microorganisms and scale removal of the continuous casting crystallizer as claimed in claim 2 or 3, wherein a first valve (11) is arranged on a pipeline between the ozone adding device (1) and the pipeline mixer (2), a second valve (12) is arranged between the first ozone concentration detector (7) and a pipeline connected with the water inlet end of the continuous casting crystallizer (3), a third valve (13) is arranged between the second ozone concentration detector (8) and a pipeline connected with the water outlet end of the continuous casting crystallizer (3), and the first valve (11) is a one-way valve.
6. The system for online scale inhibition, killing of microorganisms and scale removal of the continuous casting crystallizer as claimed in claim 4, wherein a first valve (11) is arranged on a pipeline between the ozone adding device (1) and the pipeline mixer (2), a second valve (12) is arranged between the first ozone concentration detector (7) and a pipeline connected with the water inlet end of the continuous casting crystallizer (3), a third valve (13) is arranged between the second ozone concentration detector (8) and a pipeline connected with the water outlet end of the continuous casting crystallizer (3), and the first valve (11) is a one-way valve.
7. The on-line scale inhibition, killing and descaling system for the continuous casting crystallizer according to claim 3, wherein a fourth valve (14) and a fifth valve (15) are respectively arranged on the pipelines connecting the water inlet end and the water outlet end of the continuous casting crystallizer (3) with the two ends of the plate hanging device (4).
8. The on-line scale inhibition, killing and descaling system for the continuous casting crystallizer as claimed in claim 2, wherein the ozone output of the ozone adding device (1) is 100 g/h.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2799538Y (en) * | 2005-06-24 | 2006-07-26 | 张晖 | Sterilizing and power saving device for cooling water circulation system |
| CN105585104A (en) * | 2016-03-01 | 2016-05-18 | 大连理工大学 | Circulating cooling water ozone bypass-flow treatment system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6283865B2 (en) * | 2013-09-30 | 2018-02-28 | 株式会社片山化学工業研究所 | Water treatment method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2799538Y (en) * | 2005-06-24 | 2006-07-26 | 张晖 | Sterilizing and power saving device for cooling water circulation system |
| CN105585104A (en) * | 2016-03-01 | 2016-05-18 | 大连理工大学 | Circulating cooling water ozone bypass-flow treatment system and method |
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