CN113529096B - Treatment process of waste sulfuric acid on surface of metal kayak support - Google Patents
Treatment process of waste sulfuric acid on surface of metal kayak support Download PDFInfo
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- CN113529096B CN113529096B CN202110804876.1A CN202110804876A CN113529096B CN 113529096 B CN113529096 B CN 113529096B CN 202110804876 A CN202110804876 A CN 202110804876A CN 113529096 B CN113529096 B CN 113529096B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
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- 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
- B08B3/02—Cleaning by the force of jets or sprays
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- 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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a treatment process of waste sulfuric acid on the surface of a metal kayak support, which comprises the following steps: firstly, removing dust by acid mist, namely placing a metal kayak support in a pickling tank, and pressurizing and spraying the acid mist in the pickling tank to the surface of the metal kayak support by using a spraying device in the pickling tank to obtain a first metal kayak support; step two, pickling, namely soaking the metal kayak support I in acid liquor to obtain a metal kayak support II after soaking is finished; thirdly, high-pressure acid washing, namely pressurizing and spraying acid liquor in the acid washing tank to the surface of the metal kayak support II by using a spraying device to obtain a metal kayak support III; and fourthly, carrying out cyclone pickling, namely placing the third metal kayak support in a cyclone shell, and enabling acid liquor in a pickling tank to enter the cyclone shell along the tangential direction so as to form a cyclone to clean the outer surface of the third metal kayak support and obtain a finished product. The invention is a treatment process which is convenient for the pre-reaction of rust substances, is convenient for impurity removal and reutilization of acid liquor by utilizing an acid pickling process, and is energy-saving and environment-friendly.
Description
Technical Field
The invention mainly relates to the technical field of metal surface treatment, in particular to a treatment process of waste sulfuric acid on the surface of a metal kayak support.
Background
The use of spent sulfuric acid removes scale and rust from metal surfaces in a process known as pickling.
According to the acid cleaning process for the surface pretreatment of the welding wire steel provided by the patent document with the application number of CN201710361303.X, the process comprises the following steps: a. immersing the welding wire steel in clear water at the temperature of 55-60 ℃ for 5-8 minutes; b. preparing the pickling solution, and injecting the pickling solution into a pickling tank; c. placing the welding wire steel soaked in clear water into a pickling tank for pickling, wherein the pickling temperature is 20-35 ℃, and the pickling time is 30-40 minutes; d. and (4) cleaning the acid-cleaned welding wire steel by using clean water, and then applying boric acid for rust prevention. The process adopts the matching use of sulfuric acid and hydrochloric acid, has short pickling time, can effectively remove steel oxide skin, and can prevent acid mist from volatilizing into space to cause pollution and protect the environment because the fatty alcohol-polyoxyethylene ether has a corrosion inhibition effect in the pickling process and can generate a layer of foam with the pickling liquid surface at the same time.
The acid pickling process in the patent has short acid pickling time, can prevent acid mist from volatilizing, needs clean water for soaking before acid pickling, wastes water, is inconvenient for pre-reaction of rusted materials, and is inconvenient for impurity removal and recycling of acid liquor by using an acid pickling process.
Disclosure of Invention
The invention mainly provides a treatment process of waste sulfuric acid on the surface of a metal kayak support, which is used for solving the technical problems in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a treatment process of waste sulfuric acid on the surface of a metal kayak support comprises the following steps:
firstly, removing dust by acid mist, namely placing a metal kayak support to be treated in a pickling tank, sucking the acid mist in the pickling tank by using a spraying device in the pickling tank, and pressurizing and spraying the acid mist to the surface of the metal kayak support to obtain a first metal kayak support;
step two, pickling, namely soaking the metal kayak support I in acid liquor to obtain a metal kayak support II after soaking is finished;
thirdly, pickling at high pressure, namely pumping acid liquor in a pickling tank by using a spraying device and spraying the acid liquor to the surface of the metal kayak support II under pressure to obtain a metal kayak support III;
fourthly, carrying out cyclone pickling, namely placing the third metal kayak support in a cyclone shell, enabling acid liquor in a pickling tank to enter the cyclone shell along the tangential direction to form cyclone to clean the outer surface of the third metal kayak support so as to obtain a fourth metal kayak support, and enabling the acid liquor after cyclone separation to flow back to the pickling tank;
and fifthly, washing, namely washing the metal kayak support IV to obtain a finished metal kayak support.
Preferably, in the second step, the temperature of the acid solution is twenty-five ℃, and the soaking time is ten minutes. In the preferred embodiment, the soaking temperature and time are controlled to facilitate the sufficient reaction between the waste sulfuric acid and the metal surface.
Preferably, in the fifth step, the water washing temperature is sixty ℃, the water washing time is five minutes, and the water flow rate is one meter per second. In the preferred embodiment, the waste sulfuric acid on the metal surface is washed and removed conveniently by controlling the water washing temperature, the water washing time and the water washing flow rate.
Preferably, the pickling incasement is equipped with the supporter, pickling roof portion is equipped with a plurality of driver parts that are used for driving the supporter and go up and down, sprinkler is including locating pickling incasement wall's portable sprinkler head spare to and negative pressure suction part, negative pressure suction part is arranged in transmitting pickling incasement acid mist or acidizing fluid suction to portable sprinkler head spare, swirler shell lateral wall top is equipped with the tangent line inlet pipe of pipeline intercommunication pickling case, top-down is equipped with according to the preface and opens and close part, whirl storage plate, overflow pipe and whirl acceleration component in the swirler shell, overflow pipe flowing back end intercommunication pickling case. In the preferred embodiment, the pickling tank is convenient for carrying out acid mist dust removal, pickling and high-pressure pickling treatment on the metal kayak support to be treated, the cyclone shell is convenient for carrying out cyclone pickling treatment on the metal kayak support, and meanwhile, impurity removal and purification of acid liquor are facilitated.
Preferably, the drive part is including locating the step motor at pickling roof portion locates step motor execution end just fixes the capstan winch at pickling roof portion, and locates rope on the capstan winch, the rope runs through the pickling roof portion and connects the supporter. In the preferred embodiment, the stable lifting of the object shelf is facilitated by the driving means.
Preferably, the movable spray head component comprises first linear guide rails symmetrically arranged on the inner wall of the pickling tank, second linear guide rails with two ends respectively connected with the execution ends of the two first linear guide rails, and a spray head arranged at the execution end of the second linear guide rail. In the preferred embodiment, the blanket wash of the kayak stand is facilitated by a moving nozzle block.
Preferably, the negative pressure suction part is including locating the negative pressure pump of pickling incasement wall and flowing back end pipeline intercommunication shower nozzle is located the pipette of negative pressure pump imbibition end and extension to pickling incasement wall bottom, and intercommunication a plurality of fog pipes of inhaling of pipette outer wall, the pipette outer wall just is located inhales fog pipe below and is equipped with first automatically controlled valve, inhale and be equipped with the second automatically controlled valve on the fog pipe. In the preferred embodiment, the suction transfer of the acid mist or acid liquor in the pickling tank into the mobile spray head part is facilitated by means of a vacuum suction part.
Preferably, the bottom of the side wall of the pickling tank is provided with an acid mist absorption pool communicated with the pickling tank through a pipeline, and the top of one side of the acid mist absorption pool, away from the pickling tank, is provided with an air inlet pipe. In the preferred embodiment, the acid mist discharged from the pickling tank is completely absorbed by the acid mist absorption tank.
Preferably, the opening and closing component comprises telescopic cylinders symmetrically arranged on the side wall of the cyclone casing and a starting and closing plate arranged at the execution end of the telescopic cylinders. In the preferred embodiment, the opening or closing of the top of the cyclone casing is achieved by an opening and closing member.
Preferably, the rotational flow accelerating component comprises tooth wall rotational flow accelerating sleeves, a transmission motor and a driving gear, wherein the tooth wall rotational flow accelerating sleeves are connected with the inner wall of the outer shell of the cyclone in a rotating mode at the bottom end of the top end of the outer wall, the transmission motor is arranged on the outer wall of the outer shell of the cyclone, and the driving gear is arranged at the execution end of the transmission motor and penetrates through the outer shell of the cyclone and is meshed with the tooth wall rotational flow accelerating sleeves. In the preferred embodiment, the swirl acceleration component is used to increase the swirl velocity of the acid in the cyclone housing, so as to facilitate the discharge of impurities in the acid.
Compared with the prior art, the invention has the beneficial effects that:
in the acid mist dust removal step, the metal kayak support can be cleaned by using acid mist, the cleaning effect is good, the pre-reaction of rusty materials is facilitated, the acid liquor fully reacts on the metal surface in the pickling step, impurities on the metal surface are removed conveniently in the high-pressure pickling step, the pickling time is shortened conveniently, and the acid liquor is subjected to impurity removal and reutilization conveniently in the cyclone pickling step;
the pickling tank is convenient for acid mist dust removal, pickling and high-pressure pickling treatment of a metal kayak support to be treated, the cyclone shell is convenient for cyclone pickling treatment of the metal kayak support, impurity removal and purification of acid liquor are facilitated, stable lifting of the stand is facilitated through the driving part in the pickling tank, covering type spraying is facilitated for the metal kayak support through the movable nozzle part, acid mist or acid liquor in the pickling tank is facilitated to be sucked into the movable nozzle part through the negative-pressure suction part, the acid mist discharged through the pickling tank is facilitated to be completely absorbed through the acid mist absorption pool, opening or closing of the top of the shell of the cyclone is achieved through the opening and closing part in the shell of the cyclone, and the cyclone acceleration part is convenient to increase the speed of the cyclone acid liquor in the cyclone shell, so that impurities in the acid liquor are discharged.
The invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is an isometric view of the pickling tank and cyclone housing structure of the present invention;
FIG. 3 is an exploded view of the pickling tank and cyclone housing structure of the present invention;
FIG. 4 is an exploded view of the sprinkler configuration of the present invention;
FIG. 5 is an exploded view of the internal structure of the cyclone casing of the present invention;
FIG. 6 is a top view of the pickling tank and cyclone housing structure of the present invention;
FIG. 7 is a sectional view of the pickling tank and cyclone housing construction of the present invention;
fig. 8 is a side view showing the structure of the negative pressure suction means of the present invention.
Description of the drawings: 10. a pickling tank; 11. a rack; 12. a drive member; 121. a stepping motor; 122. a winch; 123. a rope; 13. an acid mist absorption tank; 14. an air inlet pipe; 20. a spraying device; 21. a movable nozzle part; 211. a first linear guide rail; 212. a second linear guide; 213. a spray head; 22. a negative pressure suction part; 221. a negative pressure pump; 222. a pipette; 223. a mist suction pipe; 224. a first electrically controlled valve; 225. a second electrically controlled valve; 30. a swirler housing; 31. a feeding pipe is cut; 32. an opening and closing member; 321. a telescopic cylinder; 322. a shutter plate; 33. a rotational flow object placing plate; 34. an overflow pipe; 35. a swirl accelerating component; 351. a tooth wall rotational flow accelerating sleeve; 352. a drive motor; 353. the gears are driven.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, in a preferred embodiment of the present invention, a process for treating waste sulfuric acid on the surface of a metal kayak support comprises the following steps: firstly, removing dust by acid mist, namely placing a metal kayak support to be treated in a pickling tank 10, sucking the acid mist in the pickling tank 10 by using a spraying device 20 in the pickling tank 10, and pressurizing and spraying the acid mist to the surface of the metal kayak support to obtain a first metal kayak support; step two, pickling, namely soaking the metal kayak support I in acid liquor to obtain a metal kayak support II after soaking is finished; thirdly, pickling at high pressure, namely pumping acid liquor in the pickling tank 10 by using a spraying device 20 and spraying the acid liquor to the surface of the metal kayak support II under pressure to obtain a metal kayak support III; fourthly, carrying out cyclone pickling, namely placing the third metal kayak support in a cyclone shell 30, enabling acid liquor in a pickling tank 10 to enter the cyclone shell 30 along the tangential direction to form cyclone to clean the outer surface of the third metal kayak support so as to obtain a fourth metal kayak support, and enabling the acid liquor after cyclone separation to flow back to the pickling tank 10; and step five, washing the metal kayak support four to obtain a finished metal kayak support, wherein in the step two, the temperature of the acid liquid is twenty-five ℃, the soaking time is ten minutes, in the step five, the washing temperature is sixty ℃, the washing time is five minutes, and the flow velocity of water flow is one meter per second.
In the embodiment, the metal kayak support to be treated is placed in the pickling tank 10, and the spraying device 20 in the pickling tank 10 is used for sucking acid mist in the pickling tank 10 and spraying the acid mist to the surface of the metal kayak support under pressure to obtain a first metal kayak support; immersing the first metal kayak support into acid liquor, wherein the temperature of the acid liquor is twenty-five ℃, the immersion time is ten minutes, and obtaining a second metal kayak support after immersion; pumping acid liquor in the pickling tank 10 by using a spraying device 20 and pressurizing and spraying the acid liquor to the surface of the metal kayak support II to obtain a metal kayak support III; moving the third metal kayak support in the pickling tank 10 into the cyclone casing 30 through a mechanical arm, enabling acid liquor in the pickling tank 10 to enter the cyclone casing 30 along the tangential direction to form cyclone flow to clean the outer surface of the third metal kayak support to obtain a fourth metal kayak support, and enabling the acid liquor after cyclone separation to flow back to the pickling tank 10; and washing the metal kayak support IV with water to obtain a finished metal kayak support, wherein the washing temperature is sixty ℃, the washing time is five minutes, and the flow velocity of water is one meter per second.
Please refer to fig. 2, 3, 4, 6, 7, and 8, in another preferred embodiment of the present invention, an article rack 11 is disposed in the pickling tank 10, a plurality of driving members 12 for driving the article rack 11 to ascend and descend are disposed on the top of the pickling tank 10, the spraying device 20 includes a movable spray head member 21 disposed on the inner wall of the pickling tank 10, and a negative pressure suction member 22, the negative pressure suction member 22 is used for sucking and transmitting the acid mist or acid liquid in the pickling tank 10 to the movable spray head member 21, the driving member 12 includes a stepping motor 121 disposed on the top of the pickling tank 10, a winch 122 disposed on the execution end of the stepping motor 121 and fixed on the top of the pickling tank 10, and a rope 123 disposed on the winch 122, the rope 123 penetrates through the top of the pickling tank 10 and is connected to the article rack 11, the movable spray head member 21 includes first linear guide rails 211 symmetrically disposed on the inner wall of the pickling tank 10, the second linear guide 212 of two first linear guide 211 execution ends is connected respectively at both ends, and locate the shower nozzle 213 of second linear guide 212 execution end, negative pressure suction means 22 is including locating negative pressure pump 221 of pickling case 10 inner wall and flowing back end pipeline intercommunication shower nozzle 213 locates negative pressure pump 221 imbibition end just extends to the pipette 222 of pickling case 10 inner wall bottom, and the intercommunication a plurality of fog-absorbing pipes 223 of pipette 222 outer wall, pipette 222 outer wall just is located fog-absorbing pipe 223 below and is equipped with first automatically controlled valve 224, be equipped with second automatically controlled valve 225 on the fog-absorbing pipe 223, pickling case 10 lateral wall bottom is equipped with the acid mist absorption cell 13 of pipeline intercommunication pickling case 10, pickling case 10 keeps away from acid mist absorption cell 13 one side top is equipped with intake pipe 14.
It should be noted that, in this embodiment, the metal kayak support is placed on the storage rack 11, the negative pressure suction component 22 sucks the acid mist in the pickling tank 10 into the movable head component 21, the movable head component 21 removes the dust on the surface of the metal kayak support by the acid mist, after the dust removal, the drive component 12 drives the storage rack 11 to descend until the metal kayak support is immersed in the waste sulfuric acid for pickling, after the pickling, the storage rack 11 resets, the negative pressure suction component 22 sucks the acid solution in the pickling tank 10 into the movable head component 21, and the movable head component 21 performs high-pressure pickling on the surface of the metal kayak support;
further, when the negative pressure suction part 22 works, the negative pressure pump 221 is turned on, when acid mist suction is performed, the first electronic control valve 224 is closed, the second electronic control valve 225 is opened, the acid mist enters the movable head part 21 through the mist suction pipe 223, when acid liquid suction is performed, the first electronic control valve 224 is opened, the second electronic control valve 225 is closed, and the acid liquid is sucked into the movable head part 21 through the liquid suction pipe 222;
further, when the movable nozzle part 21 works, the first linear guide rail 211 drives the nozzle 213 to move along the X-axis direction, the second linear guide rail 212 drives the nozzle 213 to move along the Y-axis direction, and the nozzle 213 sprays acid mist or acid liquor onto the surface of the metal kayak support;
further, the acid mist enters the acid mist absorption tank 13 through a pipeline, and an acid mist absorbent such as alkali liquor in the acid mist absorption tank 13 absorbs the acid mist to prevent the acid mist from polluting the air
Further, when the driving member 12 is operated, the stepping motor 121 rotates the capstan 122, and the capstan 122 retracts or discharges the rope 123 to move the opposite rack 11 upward or downward.
Please refer to fig. 2, 3, 5, 6, and 7, in another preferred embodiment of the present invention, a tangential feeding pipe 31 for communicating the pipeline with the pickling tank 10 is disposed at the top of the sidewall of the cyclone casing 30, an opening and closing member 32, a cyclone placing plate 33, an overflow pipe 34, and a cyclone accelerating member 35 are sequentially disposed in the cyclone casing 30 from top to bottom, a liquid discharging end of the overflow pipe 34 is communicated with the pickling tank 10, the opening and closing member 32 includes a telescopic cylinder 321 symmetrically disposed on the sidewall of the cyclone casing 30, and an opening and closing plate 322 disposed at an executing end of the telescopic cylinder 321, the cyclone accelerating member 35 includes a tooth wall cyclone accelerating sleeve 351 rotatably connected to the inner wall of the cyclone casing 30 at the top and bottom of the outer wall, a transmission motor 352 disposed on the outer wall of the cyclone casing 30, and a driving gear 353 disposed at the executing end of the transmission motor 352 and engaged with the tooth wall cyclone accelerating sleeve 351 and penetrating through the cyclone casing 30.
In the embodiment, after the opening and closing member 32 is opened, the mechanical arm places the metal kayak support after high-pressure pickling on the cyclone storage plate 33, closes the opening and closing member 32, introduces pressure gas into the pickling tank 10 through the gas inlet pipe 14, then acid liquid enters the cyclone housing 30 through the tangential feed pipe 31 and forms a cyclone to perform cyclone cleaning on the metal kayak support, the acid liquid after cyclone cleaning is guided into the lower part of the cyclone storage plate 33 through the cyclone storage plate 33, then the cyclone acceleration member 35 accelerates the cyclone, impurities in the acid liquid cyclone are discharged through the bottom of the cyclone housing 30, the acid liquid after impurity removal returns to the pickling tank 10 through the overflow pipe 34, and the overflow pipe 34 can be provided with a one-way valve to prevent backflow;
further, when the opening and closing member 32 is operated, the retractable cylinder 321 drives the opening and closing plate 322 to move up and down for opening or closing,
further, when the rotational flow acceleration component 35 works, the execution end of the transmission motor 352 drives the driving gear 353 to rotate, the driving gear 353 drives the tooth wall rotational flow acceleration sleeve 351 to rotate, and the tooth wall rotational flow acceleration sleeve 351 accelerates the rotational flow acid liquid.
The specific process of the invention is as follows:
placing a metal kayak support to be treated in a pickling tank 10, sucking acid mist in the pickling tank 10 by using a spraying device 20 in the pickling tank 10, and pressurizing and spraying the acid mist to the surface of the metal kayak support to obtain a first metal kayak support; immersing the first metal kayak support into acid liquor, wherein the temperature of the acid liquor is twenty-five ℃, the immersion time is ten minutes, and obtaining a second metal kayak support after immersion; pumping the acid liquor in the pickling tank 10 by using a spraying device 20, and pressurizing and spraying the acid liquor to the surface of the metal kayak support II to obtain a metal kayak support III; moving the third metal kayak support in the pickling tank 10 into the cyclone casing 30 through the mechanical arm, enabling acid liquor in the pickling tank 10 to enter the cyclone casing 30 along the tangential direction to form cyclone to clean the outer surface of the third metal kayak support to obtain a fourth metal kayak support, and enabling the acid liquor after cyclone separation to flow back to the pickling tank 10; washing the metal kayak bracket IV with water to obtain a finished metal kayak bracket, wherein the washing temperature is sixty ℃, the washing time is five minutes, and the flow velocity of water is one meter per second;
placing the metal kayak support on a storage rack 11, sucking acid mist in a pickling tank 10 to a movable nozzle component 21 by a negative pressure suction component 22, performing acid mist dust removal on the surface of the metal kayak support by the movable nozzle component 21, driving the storage rack 11 to descend by a driving component 12 after the acid removal is completed until the metal kayak support is immersed in waste sulfuric acid to perform pickling, resetting the storage rack 11 after the pickling is completed, sucking the acid solution in the pickling tank 10 to the movable nozzle component 21 by the negative pressure suction component 22, and performing high-pressure pickling on the surface of the metal kayak support by the movable nozzle component 21;
when the negative pressure suction part 22 works, the negative pressure pump 221 is started, when acid mist suction is performed, the first electric control valve 224 is closed, the second electric control valve 225 is opened, the acid mist enters the movable type nozzle part 21 through the mist suction pipe 223, when acid liquid suction is performed, the first electric control valve 224 is opened, the second electric control valve 225 is closed, and the acid liquid is sucked into the movable type nozzle part 21 through the liquid suction pipe 222;
when the movable nozzle part 21 works, the first linear guide rail 211 drives the nozzle 213 to move along the X-axis direction, the second linear guide rail 212 drives the nozzle 213 to move along the Y-axis direction, and the nozzle 213 sprays acid mist or acid liquor onto the surface of the metal kayak support;
the acid mist enters the acid mist absorption tank 13 through a pipeline, and an acid mist absorbent such as alkali liquor in the acid mist absorption tank 13 can absorb the acid mist so as to prevent the acid mist from polluting the air;
when the driving part 12 is operated, the stepping motor 121 drives the winch 122 to rotate, and the winch 122 contracts or discharges the rope 123 so as to move the object rack 11 upwards or downwards;
after the opening and closing part 32 is opened, the mechanical arm places the metal kayak support subjected to high-pressure pickling on the rotational flow storage plate 33, the opening and closing part 32 is closed, pressure gas is introduced into the pickling tank 10 through the gas inlet pipe 14, acid liquor enters the cyclone shell 30 through the tangential feed pipe 31 and forms rotational flow to perform rotational flow cleaning on the metal kayak support, the acid liquor subjected to rotational flow cleaning is guided into the lower part of the rotational flow storage plate 33 through the rotational flow storage plate 33, the rotational flow acceleration part 35 accelerates the rotational flow at the moment, impurities in the acid liquor rotational flow are discharged from the bottom of the cyclone shell 30, the acid liquor subjected to impurity removal returns to the pickling tank 10 through the overflow pipe 34, and the overflow pipe 34 can be provided with a one-way valve to prevent backflow;
when the opening and closing member 32 is operated, the retractable cylinder 321 drives the opening and closing plate 322 to move up and down for opening or closing,
when the rotational flow accelerating component 35 works, the actuating end of the transmission motor 352 drives the driving gear 353 to rotate, the driving gear 353 drives the tooth wall rotational flow accelerating sleeve 351 to rotate, and the tooth wall rotational flow accelerating sleeve 351 accelerates the rotational flow acid liquid.
The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without such modifications.
Claims (9)
1. A treatment process of waste sulfuric acid on the surface of a metal kayak support is characterized by comprising the following steps:
firstly, removing dust by acid mist, namely placing a metal kayak support to be treated in a pickling tank (10), sucking the acid mist in the pickling tank (10) by using a spraying device (20) in the pickling tank (10), and pressurizing and spraying the acid mist to the surface of the metal kayak support to obtain a first metal kayak support;
step two, pickling, namely soaking the metal kayak support I in acid liquor to obtain a metal kayak support II after soaking is finished;
thirdly, pickling at high pressure, namely sucking acid liquor in a pickling tank (10) by using a spraying device (20) and pressurizing and spraying the acid liquor to the surface of the metal kayak support II to obtain a metal kayak support III;
fourthly, carrying out cyclone pickling, namely placing the third metal kayak support in a cyclone shell (30), enabling acid liquor in a pickling tank (10) to enter the cyclone shell (30) along the tangential direction to form cyclone to clean the outer surface of the third metal kayak support so as to obtain a fourth metal kayak support, and enabling the acid liquor after cyclone separation to flow back to the pickling tank (10);
fifthly, washing, namely washing the metal kayak support IV to obtain a finished metal kayak support;
the pickling tank is characterized in that a storage rack (11) is arranged in the pickling tank (10), a plurality of driving parts (12) used for driving the storage rack (11) to lift are arranged at the top of the pickling tank (10), the spraying device (20) comprises a movable spray head part (21) arranged on the inner wall of the pickling tank (10) and a negative pressure suction part (22), the negative pressure suction part (22) is used for sucking and transmitting acid mist or acid liquid in the pickling tank (10) to the movable spray head part (21), a tangent feeding pipe (31) communicated with the pickling tank (10) through a pipeline is arranged at the top of the side wall of the cyclone shell (30), an opening and closing part (32), a cyclone storage plate (33), an overflow pipe (34) and a cyclone acceleration part (35) are sequentially arranged from top to bottom in the cyclone shell (30), and the liquid discharge end of the overflow pipe (34) is communicated with the pickling tank (10);
the method comprises the steps that a metal kayak support is placed on a storage rack (11), acid mist in a pickling box (10) is sucked to a movable type spray head component (21) through a negative pressure suction component (22), the movable type spray head component (21) removes dust on the surface of the metal kayak support through the acid mist, a driving component (12) drives the storage rack (11) to descend after the completion of acid removal until the metal kayak support is immersed in waste sulfuric acid for pickling, the storage rack (11) resets after the pickling is completed, the negative pressure suction component (22) sucks the acid solution in the pickling box (10) to the movable type spray head component (21), and the movable type spray head component (21) performs high-pressure pickling on the surface of the metal kayak support.
2. The process of claim 1, wherein in the second step, the temperature of the acid solution is twenty-five ℃ and the soaking time is ten minutes.
3. The process for treating the waste sulfuric acid on the surface of the metal kayak support according to claim 1, wherein in the fifth step, the water washing temperature is sixty ℃, the water washing time is five minutes, and the water flow velocity is one meter per second.
4. The process for treating the waste sulfuric acid on the surface of the metal kayak support as claimed in claim 1, wherein the driving part (12) comprises a stepping motor (121) arranged at the top of the pickling tank (10), a winch (122) arranged at the execution end of the stepping motor (121) and fixed at the top of the pickling tank (10), and a rope (123) arranged on the winch (122), wherein the rope (123) penetrates through the top of the pickling tank (10) and is connected with a storage rack (11).
5. The process for treating the waste sulfuric acid on the surface of the metal kayak support as claimed in claim 1, wherein the movable nozzle part (21) comprises first linear guide rails (211) symmetrically arranged on the inner wall of the pickling tank (10), second linear guide rails (212) with two ends respectively connected with the execution ends of the two first linear guide rails (211), and a nozzle (213) arranged at the execution end of the second linear guide rails (212).
6. The process for treating the surface waste sulfuric acid of the metal kayak support according to claim 5, wherein the negative pressure suction component (22) comprises a negative pressure pump (221) which is arranged on the inner wall of the pickling tank (10) and is communicated with the spray head (213) through a liquid discharge end pipeline, a liquid suction pipe (222) which is arranged on a liquid suction end of the negative pressure pump (221) and extends to the bottom of the inner wall of the pickling tank (10), and a plurality of mist suction pipes (223) which are communicated with the outer wall of the liquid suction pipe (222), wherein a first electric control valve (224) is arranged below the outer wall of the liquid suction pipe (222) and is positioned below the mist suction pipe (223), and a second electric control valve (225) is arranged on the mist suction pipe (223).
7. The process for treating the waste sulfuric acid on the surface of the metal kayak support as claimed in claim 1, wherein an acid mist absorption tank (13) communicated with the pickling tank (10) through a pipeline is arranged at the bottom of the side wall of the pickling tank (10), and an air inlet pipe (14) is arranged at the top of one side, far away from the acid mist absorption tank (13), of the pickling tank (10).
8. The process for treating the waste sulfuric acid on the surface of the metal kayak support as claimed in claim 1, wherein the opening and closing component (32) comprises telescopic cylinders (321) symmetrically arranged on the side wall of the cyclone casing (30) and an opening and closing plate (322) arranged at the execution end of the telescopic cylinders (321).
9. The process for treating the waste sulfuric acid on the surface of the metal kayak support as claimed in claim 1, wherein the rotational flow accelerating component (35) comprises a tooth wall rotational flow accelerating sleeve (351) rotatably connected with the inner wall of the cyclone casing (30) at the top end and the bottom end of the outer wall, a transmission motor (352) arranged on the outer wall of the cyclone casing (30), and a driving gear (353) arranged at the execution end of the transmission motor (352) and meshed with the tooth wall rotational flow accelerating sleeve (351) and penetrating through the cyclone casing (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110804876.1A CN113529096B (en) | 2021-07-16 | 2021-07-16 | Treatment process of waste sulfuric acid on surface of metal kayak support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110804876.1A CN113529096B (en) | 2021-07-16 | 2021-07-16 | Treatment process of waste sulfuric acid on surface of metal kayak support |
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| CN113529096B true CN113529096B (en) | 2023-03-31 |
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| JP5291312B2 (en) * | 2006-09-14 | 2013-09-18 | 日本ファスナー工業株式会社 | Pickling apparatus and method |
| CN104152931B (en) * | 2014-07-22 | 2016-03-30 | 浙江大学 | A kind of whirlwind-type acid-washing stainless steel system and method thereof |
| CN105483737A (en) * | 2015-12-08 | 2016-04-13 | 无锡华工薄板有限公司 | Bubble prevention acid washing device for strip steel |
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