CN108262302A - One kind feeds intake container ultrasonic wave automatic cleaning process - Google Patents

One kind feeds intake container ultrasonic wave automatic cleaning process Download PDF

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Publication number
CN108262302A
CN108262302A CN201611263013.3A CN201611263013A CN108262302A CN 108262302 A CN108262302 A CN 108262302A CN 201611263013 A CN201611263013 A CN 201611263013A CN 108262302 A CN108262302 A CN 108262302A
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CN
China
Prior art keywords
crucible
ultrasonic wave
pickling
cleaning
feeds intake
Prior art date
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Granted
Application number
CN201611263013.3A
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Chinese (zh)
Other versions
CN108262302B (en
Inventor
严波
秦吉平
袁玉波
彭旭
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China Jianzhong Nuclear Fuel Co Ltd
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China Jianzhong Nuclear Fuel Co Ltd
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Priority to CN201611263013.3A priority Critical patent/CN108262302B/en
Publication of CN108262302A publication Critical patent/CN108262302A/en
Application granted granted Critical
Publication of CN108262302B publication Critical patent/CN108262302B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/22—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by soaking alone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/005—Use of ultrasonics or cavitation, e.g. as primary or secondary action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/08—Details of machines or methods for cleaning containers, e.g. tanks

Abstract

The present invention relates to cylindrical metal vessel surface pollution layer processing technology fields, and in particular to one kind feeds intake container ultrasonic wave automatic cleaning process；The technique includes the following steps：It is 90~120min that crucible is put into pickling time in strong acid solution first；Secondly it is 8~10min the crucible of step 1 pickling to be put into aqueous slkali the alkali cleaning time；It is finally 8~10min by the crucible washing time of step 2 alkali cleaning, in the step 1 pickling and step 2 alkaline cleaning procedure, the ultrasonic wave of certain power is passed through in acid solution and aqueous slkali.Cleaning qualification rate of the invention primary is more than 99%, is avoided by manually being cleaned or secondary benefit is washed.

Description

One kind feeds intake container ultrasonic wave automatic cleaning process
Technical field
The present invention relates to cylindrical metal vessel surface pollution layer processing technology fields, and in particular to one kind feeds intake container ultrasonic wave Automatic cleaning process.
Background technology
Special material feeds intake container (calling crucible in the following text) as carbon steel cylindrical container, band certain taper, for launching special material raw material and closing Cheng Tecai products, due to the high quality requirement of special material product, crucible must have very high surface cleanness.Feed intake earthenware After crucible machines, surface is attached to a large amount of kerosene, pulverized limestone and iron rust, and must carry out thorough surface clean could use.
Ultrasonic wave automatic cleaning technology can be used for cleaning the crucible that feeds intake, and ultrasonic equipment configuring automated mechanical hand is default Under program control, automatic hook takes the cleaning basket equipped with workpiece, realizes automatic transfer and cleaning of the workpiece in each rinse bath.
Crucible surface pollution layer impurity component is complicated, and pollution layer is thick and solid, and cleaning process is more, no one of prior art standard Cleaning parameter with reference value, the relationship of especially ultrasonic intensity, acid base concentration and scavenging period directly affect To final cleaning quality, a large amount of experiment must be carried out and grope just to can determine that these technological parameters, crucible is final so as to ensure to feed intake Cleaning quality.
Invention content
For the above-mentioned prior art, the present invention will provide one kind and feed intake container ultrasonic wave automatic cleaning process, to solve Feed intake cleaning container the problem of.
In order to solve the above-mentioned technical problem, one kind of the present invention feeds intake container ultrasonic wave automatic cleaning process, which includes Following steps：
Step 1: it is 90~120min that crucible is put into pickling time in strong acid solution；
Step 2: it is 8~10min that the crucible of step 1 pickling is put into aqueous slkali the alkali cleaning time；
Step 3: it is 8~10min by the crucible washing time of step 2 alkali cleaning.
In the step 1 pickling and step 2 alkaline cleaning procedure, the ultrasound of certain power is passed through in acid solution and aqueous slkali Wave.
When rinse bath level is less than 400mm, the ultrasonic power area power density computation that is passed through in solution； When rinse bath level is higher than 400mm, the ultrasonic power being passed through in solution is calculated with volumetric power density.
Area power density is 0.3~0.5W/cm2；Volumetric power density is 10~13W/L.
The strong acid solution be hydrochloric acid solution or salpeter solution, a concentration of 10%~15%；The aqueous slkali is hydroxide Sodium solution, a concentration of 10%~15%.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
One kind of the present invention feeds intake container ultrasonic wave automatic cleaning process, and primary qualification rate of cleaning is more than 99%, avoid by It is manually cleaned or secondary benefit is washed.
Description of the drawings
Fig. 1 is the excessive schematic diagram of crucible outer surface alkali cleaning；
Fig. 2 is the excessive schematic diagram of inner surface of crucible alkali cleaning.
Specific embodiment
It elaborates with reference to the accompanying drawings and detailed description to the present invention.
One kind of the present invention feeds intake container ultrasonic wave automatic cleaning process, includes the following steps：
Step 1: it is 90~120min that crucible is put into pickling time in hydrochloric acid solution；
Step 2: it is 8~10min that the crucible of step 1 pickling is put into sodium hydroxide solution the alkali cleaning time；
Step 3: it is 8~10min by the crucible washing time of step 2 alkali cleaning.
In the step 1 pickling and step 2 alkaline cleaning procedure, certain power ultrasonic is passed through in acid solution and aqueous slkali.
(1) ultrasonic power is determining：
Ultrasonic power directly affects cleaning performance, when rinse bath level is less than 400mm, ultrasonic power density Area power density computation should be used, is typically chosen in 0.3~0.5W/cm2；When rinse bath level is higher than 400mm, surpass Acoustic power density is calculated by volumetric power density, is typically chosen in 10~13W/L.
Under same electrical power state, the ultrasonic acoustic power difference that different cleansing mediums generates is very big, such as The acoustical power generated in alcohol or kerosene is more much smaller than the acoustical power generated in chemical.It is strong, easy for solvability The cleaning agent of volatilization, such as hydrochloric acid, the electrical power power parameter of selection can be lower；For common aqueous cleaning agent, parameter can determine It is higher.
Below using crucible rinse bath level as 700mm, and for must using the strong solubilities chemical such as hydrochloric acid Explanation；
When crucible rinse bath level be 700mm, and using hydrochloric acid when strong solubilities chemical, ultrasonic wave work( Rate density selection lower bound 10W/L or so, when being 286L for rinse bath volume, then ultrasonic power is just selected as 2860W.
(2) selection of acid, alkaline concentration：
The reaction equation of the concentration strong influence cleaning performance of acid solution, hydrochloric acid and iron rust is as follows：
Fe+2HCl→FeCl2+H2 (1)
FeO+2HCl→FeCl2+H2O (2)
Fe2O3+6HCl→2FeCl3+3H2O (3)
Fe3O4+8HCl→FeCl2+2FeCl3+4H2O (6)
As pickling carries out, FeCl2Content is more and more, to allow reaction is lasting to carry out, must just control concentration of hydrochloric acid and FeCl2Content, otherwise, FeCl2Once reaching saturation, produce little effect even if extend pickling time.There is research surface, work as salt When acid concentration is 10%, FeCl2Saturation degree is up to 48%, and when concentration of hydrochloric acid is 31%, FeCl2Saturation degree only has 5.5%, control Salt manufacturing acid concentration can utmostly improve hydrochloric acid service efficiency for 8%-13%.
Verification test is carried out accordingly, and crucible is cut into the rectangle small iron plate of long generous about 50mm × 15mm × 1.5mm, Each 200ml of hydrochloric acid solution of various concentration is prepared, impregnates one piece of small iron plate every time, soaking time 30min observes cleaning performance； Iron plate is put into again later, until iron plate derusts decline with obvious effects, as a result such as table 1：
1 concentration of hydrochloric acid verification test of table
By table 1 as it can be seen that with the increase of concentration of hydrochloric acid, the ability persistently cleaned continuously decreases；The hydrochloric acid of 8% concentration continues Cleaning ability is slightly below 10% and 15% hydrochloric acid；Therefore, concentration of hydrochloric acid control is 10%~15%, can preferably meet spy The needs of material production, nitric acid, alkali concn are likewise configured to 10%~15%.
(3) scavenging period is determining：
1) pickling time：
Pickling is the critical process in entire crucible cleaning, and subsidiary iron rust, kerosene, pulverized limestone etc. are main on crucible Pollution layer all removes in acid cleaning process, and pickling time directly affects the effect of pickling, and pickling effect determines final cleaning effect Can fruit up to standard.4 crucibles are loaded with crucible cleaning device and carry out acid washing test, are carried out 4 groups of experiments altogether, be the results are shown in Table 2.
2 crucible acid washing test of table
Acid washing test shows that crucible surface still has residual rust staining, shows pickling time when pickling time is less than 70min Not enough；When pickling time is 70~90min, corrosion of crucible loss all removes close to 10g, at this time crucible surface rusty stain, Cleaning quality basically reaches requirement, and thus it can be extrapolated that in the case where crucible itself corrosion is not much different, corrosion losses are more than During 10g, it is sufficient to ensure crucible cleaning quality；When pickling time is 90~120min, corrosion of crucible loss reaches 11g or so, Crucible surfaces externally and internally clean and bright, hunts leak through benzene, crucible weld seam is not caused to damage, and crucible pickling quality is qualified；Work as pickling When time is 120~150min, corrosion of crucible loss reaches more than 13g, but can not further improve cleaning quality.
The factors such as crucible leakage, final choice crucible acid may be caused by considering cleaning efficiency and crucible excessive corrosion The time is washed as 90~120min.
2) the alkali cleaning time：
The effect one of alkali cleaning is to neutralize remaining acid solution on crucible, second is that absorbing kerosene, the machinery mixed in residual acid solution The greases such as oil.The alkali cleaning that the crucible that pickling time is 120min is carried out to different time is tested, and the results are shown in Table 3.
3 crucible alkali cleaning of table is tested
Alkali cleaning experiments have shown that, when the alkali cleaning time be 5~8min when, crucible surface obfuscation, show that the alkali cleaning time is inadequate, carry secretly The dregs of fat crucible is made to shade；The alkali cleaning time, a large amount of sediments built up in alkali slot were slow under the effect of gravity more than after 12min Slowly crucible surface is attached to, especially upper crucible, since far from ultrasonic wave vibration plate, cavitation is relatively weak, therefore adheres to More sediments, and lye flowing is not enough to sinking attachment caused by being rotated by a small margin by throwing mechanism and crucible basket Starch washes away completely, and sediment is attached to crucible surface and causes secondary pollution, such as Fig. 1 to crucible internal walls infiltration for a long time It is shown, show as the dark yellow speckle of crucible surface.
Therefore, the suitable crucible alkali cleaning time is 8~10min, at this time the crucible surface marking without exception, and alkali cleaning quality meets It is required that.Even if there is minute quantity attachment sediment, these sediments are also purgeable, can be dry by rapid cleaning in washing Only, final cleaning quality is not interfered with.
3) washing time
The purpose of washing is to clean remaining lye and each type impurity brought from lye on crucible.For fortified water Effect is washed, takes the water inlet of bottom of gullet normally opened and voluntarily overflow water-washing method, guarantee aqueous strengthens liquid while clean Body flows, and makes the dirt carried secretly on crucible more easy to fall off.It will be through pickling time is 120min, the alkali cleaning time is 12min crucible (there is a small amount of dark yellow speckle on surface, and hand is smeared erasable) carries out the water-wash test of different time, the results are shown in Table 4.
4 crucible water-wash test of table
Crucible water-wash test shows when washing time is 5~8min, it is impossible to clean alkali slot subsidiary on crucible completely and sink Starch shows that washing time is inadequate；When crucible washing time is more than 15min, although the sediment on crucible is cleaned, but New yellow cord is formd, shows that washing can influence cleaning quality to crucible by oxidation for a long time.
Washing time is all suitable in 8~15min, considers cleaning efficiency, cleaning water consumption and long-time water The factors such as possible reoxidized crucible are washed, final choice crucible washing time is 8~10min.

Claims (5)

  1. The container ultrasonic wave automatic cleaning process 1. one kind feeds intake, which is characterized in that the technique includes the following steps：
    Step 1: it is 90~120min that crucible is put into pickling time in strong acid solution；
    Step 2: it is 8~10min that the crucible of step 1 pickling is put into aqueous slkali the alkali cleaning time；
    Step 3: it is 8~10min by the crucible washing time of step 2 alkali cleaning.
  2. The container ultrasonic wave automatic cleaning process 2. one kind according to claim 1 feeds intake, which is characterized in that the step 1 In pickling and step 2 alkaline cleaning procedure, the ultrasonic wave of certain power is passed through in acid solution and aqueous slkali.
  3. The container ultrasonic wave automatic cleaning process 3. one kind according to claim 2 feeds intake, which is characterized in that when cleaning tank liquor When face depth is less than 400mm, the ultrasonic power area power density computation that is passed through in solution；When rinse bath level height When 400mm, the ultrasonic power being passed through in solution is calculated with volumetric power density.
  4. The container ultrasonic wave automatic cleaning process 4. one kind according to claim 3 feeds intake, which is characterized in that area power is close It spends for 0.3~0.5W/cm2；Volumetric power density is 10~13W/L.
  5. The container ultrasonic wave automatic cleaning process 5. one kind according to claim 1 feeds intake, which is characterized in that the strong acid is molten Liquid be hydrochloric acid solution or salpeter solution, a concentration of 10%~15%；The aqueous slkali be sodium hydroxide solution, a concentration of 10%~ 15%.
CN201611263013.3A 2016-12-30 2016-12-30 Automatic ultrasonic cleaning process for feeding container Active CN108262302B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611263013.3A CN108262302B (en) 2016-12-30 2016-12-30 Automatic ultrasonic cleaning process for feeding container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611263013.3A CN108262302B (en) 2016-12-30 2016-12-30 Automatic ultrasonic cleaning process for feeding container

Publications (2)

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CN108262302A true CN108262302A (en) 2018-07-10
CN108262302B CN108262302B (en) 2020-12-22

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204353142U (en) * 2014-11-24 2015-05-27 青川县唐家河野生资源开发有限责任公司 A kind of strong ultrasound wave cleaning machine
CN104874566A (en) * 2015-05-21 2015-09-02 成都中牧生物药业有限公司 Ultrasonic wave and acid-alkaline composite ampoule cleaning method
CN106216315A (en) * 2016-07-22 2016-12-14 四川港通医疗设备集团股份有限公司 A kind of supersonic wave cleaning process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204353142U (en) * 2014-11-24 2015-05-27 青川县唐家河野生资源开发有限责任公司 A kind of strong ultrasound wave cleaning machine
CN104874566A (en) * 2015-05-21 2015-09-02 成都中牧生物药业有限公司 Ultrasonic wave and acid-alkaline composite ampoule cleaning method
CN106216315A (en) * 2016-07-22 2016-12-14 四川港通医疗设备集团股份有限公司 A kind of supersonic wave cleaning process

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