CN205425958U - Wash device of flash stove - Google Patents
Wash device of flash stove Download PDFInfo
- Publication number
- CN205425958U CN205425958U CN201520919581.9U CN201520919581U CN205425958U CN 205425958 U CN205425958 U CN 205425958U CN 201520919581 U CN201520919581 U CN 201520919581U CN 205425958 U CN205425958 U CN 205425958U
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- Prior art keywords
- cleaning
- smelting furnace
- flash smelting
- waste liquid
- water tank
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Abstract
The utility model relates to a wash device of flash stove, including rinsing water tank, washing pump station, rinsing distributor, useless fluid recovery unit and waste liquid treatment device, wash the water tank with the washing pump station links to each other, useless fluid recovery unit with waste liquid treatment device links to each other, useless fluid recovery unit feed liquor end is equipped with sampling device, be equipped with PH detection device in the useless fluid recovery unit, it includes piping switch box and interface arrangement to rinse the pump station, interface arrangement links to each other with the washing distributor with the washing water tank respectively, it links to each other with the flash stove to wash the distributor, the utility model discloses a wash device of flash stove can be used to the washing of not stopping of flash stove.
Description
Technical field
This utility model relates to cleaning equipment field, particularly relates to a kind of device cleaning Flash Smelting Furnace.
Background technology
Guangxi non-ferrous metal company limited Flash Smelting Furnace circulation, because of cooling water system at driving preceding pipeline not through over cleaning pre-filming treatment, pipe interior surface corrosion product such as produced welding slag, FeO, Fe2O3 when installing, making is made not to be eliminated, the presence of which makes the iron concentration in recirculated water increase, and causes some salts in water saturated and the crystal that separates out.On these scale buildup pipelines, Flash Smelting Furnace cooling copper sheathing heating surface, make Flash Smelting Furnace cooling system supply water, return piping sectional area diminishes, the thermic load of heat exchange efficiency declines, effect reduces, if taking the most as early as possible to clean, go out to process by these dirt removals, heat transfer effect can be affected, cause serious underdeposit corrosion simultaneously.And take to change feed pipe and drainage pipeline method, the water-flowing amount of the waterpipe that can only alleviate, will not eradicate the inside incrustation scale of cooling copper sheathing pipeline, directly results in cooling copper sheathing line clogging time serious, thus the normal production of impact, can be used for the cleaning of Flash Smelting Furnace currently without the applicable device that cleans.
Utility model content
In view of the current device above shortcomings cleaning Flash Smelting Furnace, this utility model provides a kind of device cleaning Flash Smelting Furnace, may be used for the cleaning of Flash Smelting Furnace.
For reaching above-mentioned purpose, of the present utility model adopt the following technical scheme that
A kind of device cleaning Flash Smelting Furnace, including cleaning water tank, cleaning pumping plant, cleaning allotter, waste liquid recovery apparatus and liquid waste treating apparatus, described cleaning water tank is connected with described cleaning pumping plant, described waste liquid recovery apparatus is connected with described liquid waste treating apparatus, described waste liquid recovery apparatus liquid feeding end is provided with sampler, it is provided with PH in described waste liquid recovery apparatus and detects device, described cleaning pumping plant includes pipe arrangement switch-box and interface arrangement, described interface arrangement is connected with cleaning water tank and cleaning allotter respectively, and described cleaning allotter is connected with Flash Smelting Furnace.
As optimal technical scheme of the present utility model, described waste liquid recovery apparatus also includes metal ion detection device.
As optimal technical scheme of the present utility model, in described liquid waste treating apparatus, it is provided with an agitating device.
As optimal technical scheme of the present utility model, the device of described cleaning Flash Smelting Furnace also includes multiple flow-limiting valve.
Cleaning device of the present utility model, including cleaning water tank, cleaning pumping plant, cleaning allotter, waste liquid recovery apparatus and liquid waste treating apparatus, described cleaning water tank is connected with described cleaning pumping plant, described waste liquid recovery apparatus is connected with described liquid waste treating apparatus, described waste liquid recovery apparatus liquid feeding end is provided with sampler, it is provided with PH in described waste liquid recovery apparatus and detects device, described cleaning pumping plant includes pipe arrangement switch-box and interface arrangement, described interface arrangement is connected with cleaning water tank and cleaning allotter respectively, and described cleaning allotter is connected with Flash Smelting Furnace；The device of cleaning Flash Smelting Furnace of the present utility model, can be used for the cleaning on line of Flash Smelting Furnace；Specifically, multiple pipelines can be carried out by being provided with cleaning allotter, the waste liquid discharged can be sampled by being provided with sampler, waste liquid can be processed by being provided with liquid waste treating apparatus.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the partial structurtes schematic diagram of a kind of device cleaning Flash Smelting Furnace described in the utility model.
Fig. 2 is the middle cleaning pumping plant partial structurtes schematic diagram of a kind of device cleaning Flash Smelting Furnace described in the utility model.
Fig. 3 is the middle cleaning allotter partial structurtes schematic diagram of a kind of device cleaning Flash Smelting Furnace described in the utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
As shown in Figure 1-Figure 3, this utility model provides a kind of device cleaning Flash Smelting Furnace, including cleaning water tank 1, clean pumping plant 2, clean allotter 3, waste liquid recovery apparatus 4 and liquid waste treating apparatus 5, clean water tank 1 and be connected with cleaning pumping plant 2, waste liquid recovery apparatus 4 is connected with liquid waste treating apparatus 5, waste liquid recovery apparatus 4 liquid feeding end is provided with sampler 6, it is provided with PH in waste liquid recovery apparatus 4 and detects device 7, clean pumping plant 2 and include pipe arrangement switch-box 8 and interface arrangement 9, interface arrangement 9 is connected with cleaning water tank 1 and cleaning allotter 3 respectively, clean allotter 3 to be connected with Flash Smelting Furnace 10, the device that cleans in this utility model may be used for the cleaning on line of Flash Smelting Furnace 10；It is specially, multiple pipelines can be carried out by being provided with cleaning allotter 3, the waste liquid discharged can be sampled by being provided with sampler 6, can process waste liquid by being provided with liquid waste treating apparatus 5, device of the present utility model can use neutral clear method to be carried out Flash Smelting Furnace 10.
In the present embodiment, waste liquid recovery apparatus 4 also includes metal ion detection device, can be used for detecting the metal ion in the waste liquid cleaned.
In the present embodiment, it is provided with an agitating device in liquid waste treating apparatus 5.
In the present embodiment, the device cleaning Flash Smelting Furnace also includes multiple flow-limiting valve, can control the flow direction of cleanout fluid in cleaning process by being provided with multiple flow-limiting valve.
The most just be used for cleaning Flash Smelting Furnace with cleaning device of the present utility model and enumerate specific embodiment, the present embodiment clean used by Flash Smelting Furnace for neutral cleaners.
1, neutral cleaners is little to the corrosion cleaning body.
Due to the scope cleaned, mainly include the import and export arm of flash smelting furnace water sleeve water jacket；About 1700 connect respectively outside flash converting furnace water jacket, flash smelting furnace water jacket enter return pipe, water pipe average length 40 meters, fouling average thickness 3-4mm.These equipment are based on copper, and common pickling is mainly nitric acid, nitric acid system oxidisability mineral acid, and the corrosion resistant metal of the thermodynamics high potentials such as the alloy of copper and copper, almost completely loses its corrosion resistance performance.Experiment shows, even at room temperature, when concentration of nitric acid brings up to > 0.1% time, i.e. there will be the phenomenon that corrosion rate significantly increases, and along with the concentration of nitric acid and the rising of ambient temperature, corrosion rate drastically increase (being shown in Table 1,2).
Table 1. bronze medal and alloy are at nitric acid, hydrochloric acid, and the comparison (40 DEG C, acid solutions: 1.0%) of the corrosion rate in sulfuric acid solution is 1.
Table 2. bronze medal is at nitric acid, hydrochloric acid, and the comparison (15 DEG C, 24h) of the corrosion rate in sulfuric acid solution is 2.
| The solution concentration of acid | Corrosion rate | |
| Nitric acid | 32 | 231.14 |
| Hydrochloric acid | Dense | 0.81 |
| Sulphuric acid | 17 | 0.74 |
Owing to Flash Smelting Furnace is each, quantity is many by all means, pipe range length, caliber are thin, therefore it is required that cleanout fluid can not be the biggest to the corrosion rate of pipeline.And neutral cleaners corrosivity the least (being shown in Table 3)
Table 3 neutral cleaners (PLC-0513) is to corrosion of metal speed (90 DEG C, 6h, 5%PLC-0513)
| Pyrite | Carbon steel | Red copper | Rustless steel | Aluminum |
| 0.0025 | 0.3815 | 0.0001 | 0.0005 | 0.1305 |
Owing to this Flash Smelting Furnace water sleeve arm is carried out being on-line cleaning, the temperature of system not can exceed that 60 DEG C, redox reaction and acid-base neutralization reaction is there is when nitric acid cleans, big calorimetric will be released, rinse liquid temperature is made drastically to raise, thus not having cooling effect, temperature is too high, in some instances it may even be possible to explode！And neutral cleaners and cleaned material generation chelatropic reaction, Entropy Changes reacts little compared with redox reaction and acid-base neutralization, and heat release is inconspicuous.
2, matting is few: after neutral cleaning operation eliminates the alkali cleaning of acid cleaning process, alkali cleaning, water rinses, rinses the operations such as front water flushing, rinsing.
3, environmental protection: use pickling process, eventually produces Compound-acid, alkali wash water etc. and cleans waste liquid, and because operation causes waste liquid amount to be much higher than neutral cleaning, add the difficulty that waste water processes more；
Neutral cleaning is environment-friendly cleaning agent, and waste liquid amount much less, consistent with the criterion that environmental protection requirement is improved by current governmental and unit day by day.
4, safety: cleanout fluid is the strong acid such as acid solution, even hydrochloric acid, has the biggest potential safety hazard under complicated construction environment, cleans the soda acid of on-the-spot person phenomenon of burning of common occurrence；
Neutral cleaners solution ph is 5-7, and personal contact is harmless, the potential safety hazard in work progress before reducing.
5, the step cleaned:
5.1, the foundation of cleaning on line system,
Due to the particularity of Flash Smelting Furnace, can not cut off the water at cleaning process Flash Smelting Furnace, and temperature can not raise, thus higher to Technology, the equipment requirements of cleaning.
5.1.1 clean and connect interim feed tube from feed-tank subfeeder, return branch connects interim liquid back pipe and is carried out.
5.1.2 make allotter, install and control valve, is connected with pumping plant, prop up connect hose connection with water jacket Zhi Guanyong；
When the arm in the most each pond cleans, being attached cleaning by the program of Party A's blowpipe, scavenger circuit is connected from each branch of recovery tank in scavenger circuit；
5.1.4 in order to prevent Flash Smelting Furnace cooling Copper Water Jacket water-cut-off long, the too high accident of temperature；Quick recovery system after cleaning；During cleaning, the arm in every layer of each pond is carried out, and carries out mark, and anti-leak-stopping is washed.
5.2 cleaning
Water rinses neutral Cleaning and Passivation
5.2.1 water rinses
Injecting desalted water by pumping plant to purging system, when water rinses, flow rates demand reaches 0.5～1.5m/s, and system has seen whether leakage after filling water, pumping plant operating is the most normal.When total system situation without exception, No leakage, the as clear as crystal no-sundries of draining, draining is with when differing the least to water turbidity, and water rinses and terminates.
5.2.2 neutral cleaning
The purpose cleaned is to utilize cleanout fluid and dirt (major metal oxide etc.) to carry out chemistry chelatropic reaction, generates solable matter, and utilizes the souring of cleanout fluid to remove.This time clean use neutral cleaners be host PH be 5.6-6.3.
Operating procedure:
Prepare cleanout fluid with connecting by purging system, Open valve, the terminal system of cleaning agent that will prepare rapidly, circulates 5-6 hour, recovers its system, proceed to properly functioning；Certain liquid level is added water at rinse bath, circulation, coutroi velocity.It is firstly added corrosion inhibiter, when, after corrosion inhibiter cycle balance, adding neutral cleaners, mend subsequently and be filled with water to control liquid level.Periodical blowdown emptying in cleaning process, and measure iron concentration, when Fe3+ concentration is more than 500ppm (method sees below literary composition), add reducing agent.Tending to balance (entering back liquid iron concentration difference less than 1%) when entering back liquid acid concentration, on monitoring pipeline section, dirt eliminates, and cleaning terminates.
Circulation time 3-4 hour
5.2.3 water displacement after cleaning:
After cleaning rust cleaning terminates, the fresh water displacement of the cleanout fluid in system is got rid of, make the iron concentration content in water be less than 30g/L less than 10mg/L, turbidity.
Operating procedure:
With the cleaning residual liquid in substantial amounts of fresh water exchange system；During displacement, while supplement the blowdown of fresh waterside.When the pH value discharging water is more than 6.8, turbidity difference is less than till 5mg/l；Water displacement step i.e. comes to an end.
Test event:
PH value: 1 time/half an hour
Turbidity: 1 time/half an hour
6. the detection method of Chemical Cleaning Analysis:
4.1.Fe3+Fe2+ mensuration:
4.1.1 reagent 10% sulfosalicylic acid
25%AlCl3 solution
5M sulphuric acid
0.05EDTA
6.1.2 determination step: in 250 milliliters of triangular flasks, is initially charged 100 milliliters of distilled water, puts into 1-5 milliliter pickle, add 25%AlCl32 milliliter, with 5M sulphuric acid regulation pH value to about 2.0 after mixing, it is heated to 30 degrees Celsius, adds 10% sulfosalicylic acid 5 milliliters, drop to purple with 0.05MEDTA disappear, the lower consumption a milliliter of meter, adds 10% (NH4) 2S2O55 milliliter, is heated to 70 degrees Celsius, continuation 0.05MEDTA is titrated to yellow, and consumption is b milliliter.
GFe3+=(a × 0.05 × 55.85 × 100)/1000V
GFe2+=(b × 0.05 × 55.85 × 100)/1000V
In upper two formulas: a, b-are that 0.05MEDTA consumes number, milliliter
V-Acidwash solution volume, milliliter
6.2 passivating solution concentration measure:
6.2.1 reagent
1:3H2SO4 solution
0.05MKMnO4 solution
0.05MFeSO4 (NH4) 2SO4 standard solution
6.2.2 operational approach:
In 300ML conical flask, add 100ML demineralized water, add 10ML1:3H2SO4 and be titrated to blush with 0.05MKMnO4 immediately, stablizing 2 minutes.
Accurately add 15ML0.05MKMnO4.
5mL passivating solution is added with pipet.
After 5 minutes, adding 10ML0.05MFeSO4 (NH4) 2SO4.
After standing 5 minutes, with FeSO4 (NH4) 2SO4 of 0.05MKMnO4 overtitration, consume volume aML.
6.2.3 calculate
Passivating solution concentration=[(15-a)-10] × 34.5 × 0.05 × 3 × 100/V × 1000
Wherein: when a is for titration, consume 0.05MKMnO4 volume number (ML).
V is passivating solution sample volume number (ML).
The mensuration of rate of corrosion in Process of Chemical Cleaning
Select the standard test piece of material identical with the system that is cleaned by, make a mark respectively.
Remove the oxide-film of strip, oils and fats.With gauze, strip is polished smooth, post rinse test piece, first with tap water, afterwards with distilled water, finally clean with ethanol and acetone, blot with filter paper, more thoroughly dry up strip with hair-dryer.
Measure test piece and each spot size, computational chart area, then weigh up the weight of test piece with analytical balance accurately, record data.
Secondly, test piece is suspended in purging system and makees corrosion spool test point, record standing time.
After the Chemical cleaning time in a stage, test piece is taken out from cleanout fluid, remove the corrosion principal goods on test strip surface with the diluted acid added with corrosion inhibiter, carry out cleaning strip with distilled water, ethanol the most respectively.After drying up surface with hair-dryer again, it is placed on analytical balance and claims its weight, record data.Finally, it is coated with last layer antirust oil at strip, places in exsiccator, in case observation strip situation.
The computational methods of rate of corrosion:
V=(W-W ')/S × T
In formula: V corrosion of metal speed (gram per square centimeter hour in the least)
Weight (milligram) before W test piece corrosion
W ' is through the weight (milligram) of the corrosion coupon of excessive erosion
The surface area (square centimeter) of S test piece
T test piece detection etching time (hour)
In sum, cleaning device of the present utility model includes cleaning water tank, cleaning pumping plant, cleaning allotter, waste liquid recovery apparatus and liquid waste treating apparatus, described cleaning water tank is connected with described cleaning pumping plant, described waste liquid recovery apparatus is connected with described liquid waste treating apparatus, described waste liquid recovery apparatus liquid feeding end is provided with sampler, it is provided with PH in described waste liquid recovery apparatus and detects device, described cleaning pumping plant includes pipe arrangement switch-box and interface arrangement, described interface arrangement is connected with cleaning water tank and cleaning allotter respectively, and described cleaning allotter is connected with Flash Smelting Furnace；The device of cleaning Flash Smelting Furnace of the present utility model, can be used for the cleaning on line of Flash Smelting Furnace；Specifically, multiple pipelines can be carried out by being provided with cleaning allotter, the waste liquid discharged can be sampled by being provided with sampler, waste liquid can be processed by being provided with liquid waste treating apparatus.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those skilled in the art is in technical scope disclosed in this utility model; the change that can readily occur in or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (4)
1. the device cleaning Flash Smelting Furnace, it is characterized in that, including cleaning water tank, clean pumping plant, clean allotter, waste liquid recovery apparatus and liquid waste treating apparatus, described cleaning water tank is connected with described cleaning pumping plant, described waste liquid recovery apparatus is connected with described liquid waste treating apparatus, described waste liquid recovery apparatus liquid feeding end is provided with sampler, it is provided with PH in described waste liquid recovery apparatus and detects device, described cleaning pumping plant includes pipe arrangement switch-box and interface arrangement, described interface arrangement is connected with cleaning water tank and cleaning allotter respectively, described cleaning allotter is connected with Flash Smelting Furnace.
A kind of device cleaning Flash Smelting Furnace the most according to claim 1, it is characterised in that described waste liquid recovery apparatus also includes metal ion detection device.
A kind of device cleaning Flash Smelting Furnace the most according to claim 1, it is characterised in that be provided with an agitating device in described liquid waste treating apparatus.
4. according to the arbitrary described a kind of device cleaning Flash Smelting Furnace of claim 1-3, it is characterised in that the device of described cleaning Flash Smelting Furnace also includes multiple flow-limiting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919581.9U CN205425958U (en) | 2015-11-17 | 2015-11-17 | Wash device of flash stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919581.9U CN205425958U (en) | 2015-11-17 | 2015-11-17 | Wash device of flash stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205425958U true CN205425958U (en) | 2016-08-03 |
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ID=56535882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520919581.9U Expired - Fee Related CN205425958U (en) | 2015-11-17 | 2015-11-17 | Wash device of flash stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205425958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020137496A1 (en) * | 2018-12-27 | 2020-07-02 | 三菱日立パワーシステムズ株式会社 | Method and apparatus for cleaning and maintaining boiler plant |
-
2015
- 2015-11-17 CN CN201520919581.9U patent/CN205425958U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020137496A1 (en) * | 2018-12-27 | 2020-07-02 | 三菱日立パワーシステムズ株式会社 | Method and apparatus for cleaning and maintaining boiler plant |
| JP2020106199A (en) * | 2018-12-27 | 2020-07-09 | 三菱日立パワーシステムズ株式会社 | Cleaning and storage method for boiler plant and cleaning and storage device |
| JP7150594B2 (en) | 2018-12-27 | 2022-10-11 | 三菱重工業株式会社 | Boiler plant cleaning storage method and cleaning storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20171117 |