CN114807952A - Stainless steel tank car jar body pickling passivation treating device - Google Patents

Stainless steel tank car jar body pickling passivation treating device Download PDF

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Publication number
CN114807952A
CN114807952A CN202111326498.7A CN202111326498A CN114807952A CN 114807952 A CN114807952 A CN 114807952A CN 202111326498 A CN202111326498 A CN 202111326498A CN 114807952 A CN114807952 A CN 114807952A
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China
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fluorine
ball valve
pump assembly
control pump
lined
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Granted
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CN202111326498.7A
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Chinese (zh)
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CN114807952B (en
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王建业
宋增栓
赵伟
宋慧兴
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Shaanxi Automobile Huainan Special Purpose Vehicle Co ltd
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Shaanxi Automobile Huainan Special Purpose Vehicle Co ltd
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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
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/46—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/76—Applying the liquid by spraying
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/77—Controlling or regulating of the coating process
    • 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
    • C23G1/08—Iron or steel
    • C23G1/088—Iron or steel solutions containing organic acids

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

The application provides a stainless steel tank car jar body pickling passivation treating device, the device include automatically controlled pump assembly, gas accuse pump assembly, sour liquid case and waste liquid case, wherein, communicate each other between automatically controlled pump assembly, gas accuse pump assembly, sour liquid case and the waste liquid case to lining fluorine ball valve control pickling process through the different positions that set up between the device, the implementation of work such as whole pickling passivation treating process and follow-up washing, all use the device can accomplish. The device combines the pneumatic control pump assembly and the electric control pump assembly, so that the operation process is safer and more reliable, the used pickling passivation article is pickling passivation solution, the effect is better after pickling passivation is finished, and the product quality and the product attractiveness are greatly improved. Use the device to operate, practice thrift the work efficiency that the manpower improved the workshop, and reduced workshop personnel and got into the risk that jar body misoperation leads to.

Description

Stainless steel tank car jar body pickling passivation treating device
Technical Field
The application relates to the technical field of stainless steel tank pickling processes, in particular to a stainless steel tank car tank pickling passivation treatment device.
Background
The stainless steel tank is one kind of metal storage tank, is used mainly for storing food and medicine and is used widely for storing wine and milk product. Stainless steel tank bodies are more widely used than other material tank bodies. Compare in other material jar bodies, the stainless steel jar body possesses corrosion-resistant, characteristics such as the leakproofness is good and good washing. Therefore, stainless steel cans are commonly used in the technical fields of food transportation and transportation of liquid materials such as ethanol.
In the related technology, a stainless steel tank body is not provided with a professional pickling passivation process scheme and tool equipment, in order to ensure that the cleanliness of the interior of the tank body meets the requirement of a product to be transported, a passivation paste is used for treating the stainless steel tank body, an operator enters the interior of the tank body to wipe the interior of the tank body, a certain amount of passivation paste is smeared in the interior of the tank body, after a period of time, the passivation paste reacts with the surface of the tank body, and then the interior of the tank body is cleaned by cleaning water.
However, the passivation paste is poor in treatment effect, people enter the tank body to have certain risks, a large amount of manpower and material resources are needed to be consumed through the mode, the efficiency is extremely low, and the tank body occupies a large space, so that the stainless steel cannot be produced in batches on a line vehicle type.
Disclosure of Invention
The application provides a stainless steel tank car jar body pickling passivation processing apparatus to need consume a large amount of manpower and materials and efficiency is extremely low when solving traditional stainless steel tank body and wasing, jar body storage occupies a large amount of spaces, makes the problem that the stainless steel motorcycle type can't carry out the mass production on line.
The technical scheme adopted by the application for solving the technical problems is as follows:
a stainless steel tank car tank body pickling passivation treatment device comprises an electric control pump assembly, a pneumatic control pump assembly, an acid liquid tank and a waste liquid tank;
the top of the electric control pump assembly is provided with a first bamboo joint connector, the first bamboo joint connector is connected with a manhole of the tank body through a pipeline, and the pipeline is connected with a pipeline spray head inside the tank body;
a sea bottom valve is arranged on the tank body, a second bamboo joint connector is assembled on the sea bottom valve, the second bamboo joint connector is connected with a third bamboo joint connector on the pneumatic control pump assembly through a pipeline, and the interior of the tank body is connected with and fixed to the pipeline spray head through a pipeline and a screw rod;
a first fluorine-lined ball valve is arranged at the top of the electric control pump assembly and connected to the bottom of the first bamboo joint connector, a second fluorine-lined ball valve is arranged at the middle of the electric control pump assembly and connected with the acid liquid tank through a pipeline;
the pneumatic control pump assembly is provided with a third fluorine-lined ball valve, a fourth fluorine-lined ball valve and a fifth fluorine-lined ball valve, the third fluorine-lined ball valve is connected with the acid liquid tank through a pipeline, the fourth fluorine-lined ball valve is connected with the waste liquid tank through a pipeline, and the fifth fluorine-lined ball valve is arranged on a communicating pipeline of the pneumatic control pump assembly.
Optionally, a filter pump is arranged between the electric control pump assembly and the acid liquid tank, and the acid liquid in the acid liquid tank enters the electric control pump assembly through the filter pump and is controlled to flow into the second fluorine-lined ball valve;
the electric control pump assembly is connected with the filter pump and sequentially provided with an electric control pump, a second fluorine-lined ball valve, a one-way valve, a steel-lined polytetrafluoroethylene composite reducing four-way joint, a first fluorine-lined ball valve and a first bamboo joint;
one end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with the one-way valve, the other end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with the first fluorine-lined ball valve, the other two ends of the steel-lined polytetrafluoroethylene composite reducing four-way joint are connected with a pressure gauge, and the other end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with a sixth fluorine-lined ball valve;
and a seventh fluorine-lined ball valve is arranged in the filter pump.
Optionally, the pneumatic control pump assembly comprises a pneumatic control pump, and a fifth fluorine-lined ball valve, a first shock absorber and a third bamboo joint which are sequentially arranged at one end of the pneumatic control pump along a pipeline, and a second shock absorber, a third fluorine-lined ball valve, a fourth fluorine-lined ball valve, a 90-degree flange elbow and a fourth bamboo joint which are sequentially arranged at the other end of the pneumatic control pump along a pipeline, wherein the top end of the third fluorine-lined ball valve is provided with the fifth bamboo joint;
the pneumatic control pump assembly is connected with the acid liquid tank through the fifth bamboo joint connector and connected with the waste liquid tank through the fourth bamboo joint connector.
Optionally, a stainless steel pickling passivation solution is configured in the acid liquor tank;
the stainless steel pickling passivation solution comprises: 15 parts of oxalic acid, 15 parts of nitric acid, 3 parts of dodecyl benzene sulfonic acid and 1 part of ammonium oxide.
The technical scheme provided by the application comprises the following beneficial technical effects:
the application provides a stainless steel tank car jar body pickling passivation treating device, the device include automatically controlled pump assembly, gas accuse pump assembly, sour liquid case and waste liquid case, wherein, communicate each other between automatically controlled pump assembly, gas accuse pump assembly, sour liquid case and the waste liquid case to lining fluorine ball valve control pickling process through the different positions that set up between the device, the implementation of work such as whole pickling passivation treating process and follow-up washing, all use the device can accomplish. The device combines the pneumatic control pump assembly and the electric control pump assembly, so that the operation process is safer and more reliable, the used pickling passivation article is pickling passivation solution, the effect is better after pickling passivation is finished, and the product quality and the product attractiveness are greatly improved. Use the device to operate, practice thrift the work efficiency that the manpower improved the workshop, and reduced workshop personnel and got into the risk that jar body misoperation leads to.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a three-dimensional structure of an acid pickling and passivation treatment device for a stainless steel tank car tank body provided in an embodiment of the present application;
FIG. 2 is a schematic plane structure diagram of an acid pickling and passivation treatment device for a stainless steel tank car tank body provided in the embodiment of the present application;
FIG. 3 is a schematic plan view of an electronically controlled pump assembly according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a planar structure of a pneumatic control pump assembly provided in an embodiment of the present application;
fig. 5 is a schematic perspective view of an electronically controlled pump assembly according to an embodiment of the present application;
fig. 6 is a schematic view of a three-dimensional structure of a pneumatic control pump assembly provided in an embodiment of the present application.
Description of reference numerals:
1-an electric control pump assembly, 2-an air control pump assembly, 3-an acid liquid tank, 4-a waste liquid tank, 5-a first bamboo joint, 6-a tank body, 7-a manhole, 8-a pipeline spray head, 9-a third bamboo joint, 10-a screw rod, 11-a first fluorine-lined ball valve, 12-a pressure gauge, 13-a one-way valve, 14-a second fluorine-lined ball valve, 15-an electric control pump, 16-a seventh fluorine-lined ball valve, 17-a steel-lined polytetrafluoroethylene composite reducing four-way joint, 18-a sixth fluorine-lined ball valve, 19-an air control pump, 20-a fifth fluorine-lined ball valve, 21-a first shock absorber, 22-a support tool, 23-a flange surface 90-degree elbow, 24-a fourth bamboo joint, 25-a fourth fluorine-lined ball valve and 26-a fifth bamboo joint, 27-third fluorine-lined ball valve, 28-second shock absorber, 29-filter pump.
Detailed Description
In order to make the technical solutions in the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and 2, an embodiment of the present application provides an acid pickling passivation device for a stainless steel tank car tank 6, and the device includes an electric control pump assembly 1, a pneumatic control pump assembly 2, an acid liquor tank 3 and a waste liquor tank 4;
the top of the electric control pump assembly 1 is provided with a first bamboo joint 5, the first bamboo joint 5 is connected with a manhole 7 of a tank body 6 through a pipeline, and the pipeline is connected with a pipeline spray head 8 in the tank body 6;
a subsea valve is arranged on the tank body 6, a second bamboo joint connector is assembled on the subsea valve, the second bamboo joint connector is connected with a third bamboo joint connector 9 on the pneumatic control pump assembly 2 through a pipeline, and the interior of the tank body 6 is connected with and fixed to a pipeline spray head 8 through a pipeline and a screw rod 10; since the subsea valve and the second bamboo joint are not represented in the position shown in the figures, these two structures are not shown in the figures.
A first fluorine-lined ball valve 11 is arranged at the top of the electric control pump assembly 1, the first fluorine-lined ball valve 11 is connected to the bottom of the first bamboo joint 5, a second fluorine-lined ball valve 14 is arranged at the middle of the electric control pump assembly 1, and the second fluorine-lined ball valve 14 is connected with the acid liquid tank 3 through a pipeline;
the pneumatic control pump assembly 2 is provided with a third fluorine-lined ball valve 27, a fourth fluorine-lined ball valve 25 and a fifth fluorine-lined ball valve 20, the third fluorine-lined ball valve 27 is connected with the acid liquid tank 3 through a pipeline, the fourth fluorine-lined ball valve 25 is connected with the waste liquid tank 4 through a pipeline, and the fifth fluorine-lined ball valve 20 is arranged on a communicating pipeline of the pneumatic control pump assembly 2.
In this application embodiment, first lining fluorine ball valve 11 among the automatically controlled pump assembly 1 is used for connecting the clear water pipeline, and through the first bamboo joint 5 and jar 6 manhole 7 department at automatically controlled pump assembly 1 top to finally flow into jar 6 inside from pipeline shower nozzle 8, simply wash jar 6 inside, and can confirm whether pipeline and pipeline shower nozzle 8 fasten firmly.
In the embodiment of the present application, as shown in fig. 3, a filter pump 29 is disposed between the electronically controlled pump assembly 1 and the acid liquor tank 3, and the acid liquor in the acid liquor tank 3 enters the electronically controlled pump assembly 1 through the filter pump 29, and the inflow of the acid liquor is controlled through the second fluorine-lined ball valve 14;
the electric control pump assembly 1 is connected with the filter pump 29 and sequentially provided with an electric control pump 15, a second fluorine-lined ball valve 14, a one-way valve 13, a steel-lined polytetrafluoroethylene composite reducing four-way joint 17, a first fluorine-lined ball valve 11 and a first bamboo joint 5;
one end of the steel-lined polytetrafluoroethylene composite reducing four-way joint 17 is connected with the check valve 13, the other end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with the first fluorine-lined ball valve 11, the other two ends of the steel-lined polytetrafluoroethylene composite reducing four-way joint are connected with the pressure gauge 12, and the other end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with the sixth fluorine-lined ball valve 18;
a seventh fluorine-lined ball valve is arranged inside the filter pump 29.
In the embodiment of the present application, as shown in fig. 4, the pneumatic control pump assembly 2 includes a pneumatic control pump 19, and a fifth fluorine-lined ball valve 20, a first shock absorber 21 and a third bamboo joint 9 which are sequentially arranged along a pipeline at one end of the pneumatic control pump 19, a second shock absorber 28, a third fluorine-lined ball valve 27, a fourth fluorine-lined ball valve 25, a flange surface 90 ° elbow 23 and a fourth bamboo joint 24 which are sequentially arranged along a pipeline at the other end of the pneumatic control pump 19, and a fifth bamboo joint 26 is arranged at the top end of the third fluorine-lined ball valve 27;
the pneumatic control pump assembly 2 is connected with the acid liquid tank 3 through a fifth bamboo joint connector 26 and is connected with the waste liquid tank 4 through a fourth bamboo joint connector 24.
In the embodiment of the application, the electronic control pump assembly 1 and the pneumatic control pump assembly 2 are both fixed on the ground through the supporting tool 22.
In the embodiment of the present application, the first fluorine-lined ball valve 11, the second fluorine-lined ball valve 14, the third fluorine-lined ball valve 27, the fourth fluorine-lined ball valve 25 and the fifth fluorine-lined ball valve 20 are all DN65 fluorine-lined ball valves, the sixth fluorine-lined ball valve 18 is a DN25 fluorine-lined ball valve, the seventh fluorine-lined ball valve is a DN20 fluorine-lined ball valve, and the steel-lined polytetrafluoroethylene composite reducing four-way joint 17 is a DN65 × 25 steel-lined polytetrafluoroethylene composite reducing four-way joint.
Parameters of the electric control pump 15: IHF65-40-250, the height of the center of an inlet flange from the ground is 290mm, the inner diameters of an 18.5KW motor, a Y160L-2 motor and an inlet flange and an outlet flange are 65mm and 40mm respectively, the center circles of mounting holes are 145mm and 110mm respectively, and the flange standard is HG/T20592-2009 PN 16.
Pneumatic control pump 19 parameters: DN65, plastic pump, PVDF material, inlet and outlet flange inner diameter 65mm, mounting hole center circle 145mm, maximum flow 34m 3 The flange standard is HG/T20592-2009 PN 16.
Stainless steel pickling passivation solution is configured in the acid solution tank 3; wherein, the stainless steel pickling passivation solution comprises: 15 parts of oxalic acid, 15 parts of nitric acid, 3 parts of dodecyl benzene sulfonic acid and 1 part of ammonium oxide.
Referring to fig. 5 and fig. 6, fig. 5 and fig. 6 are schematic three-dimensional structures of an electronic control pump assembly 1 and an air control pump assembly 2 provided in an embodiment of the present application, respectively. The structures of the electric control pump assembly 1 and the pneumatic control pump assembly 2 in the embodiment can be clearly seen from fig. 5 and 6.
Through the stainless steel tank car jar body 6 pickling passivation processing apparatus that provides in this application embodiment, adopt the following flow to carry out the pickling process:
firstly, assembling according to the method shown in figures 1 to 4;
before pickling, firstly arranging pipelines according to requirements, connecting a first bamboo joint connector 5 at the top of an electric control pump assembly 1 with a manhole 7 of a tank body 6 through a pipeline, assembling a second bamboo joint connector on a subsea valve of the tank body 6, connecting the second bamboo joint connector with a third bamboo joint connector 9 on a pneumatic control pump assembly 2 through the pipeline, and connecting and fixing a pipeline spray head 8 in the tank body 6 through the pipeline and a screw rod 10;
before pickling begins, connect the washing water pipeline through the first lining fluorine ball valve 11 of automatically controlled pump assembly 1, through the first bamboo joint of top joint 5, 6 manholes 7 departments of jar body, pipeline shower nozzle 8 is through jar 6 insidely, simply washs jar 6 insidely to confirm whether pipeline and pipeline shower nozzle 8 fasten firmly.
During acid cleaning, the second fluorine lining ball valve 14 on the electronic control pump assembly 1 is opened, the first fluorine lining ball valve 11 is closed, then the third fluorine lining ball valve 27 and the fifth fluorine lining ball valve 20 on the pneumatic control pump assembly 2 are opened, the fourth fluorine lining ball valve 25 is closed, the corresponding valve body is checked, after the corresponding valve body is determined to be correct, the electronic control pump 15 is opened, acid is pumped into the tank body 6, the pneumatic control pump 19 is opened, acid liquid entering the tank body 6 through the pipeline spray head 8 is returned to the acid liquid tank 3 through the pneumatic control pump 19, so that the acid liquid completes a cycle among the tank body 6, the pneumatic control pump 19, the acid liquid tank 3 and the electronic control pump 15, and the acid cleaning time can be controlled to last for one and a half hours;
after the pickling is finished, the electric control pump 15 is closed, the pipeline from the pneumatic control pump 19 to the acid liquid tank 3 is observed, and whether the acid liquid completely flows back to the acid liquid tank 3 through the pneumatic control pump 19 is judged. After the acid liquor flows back to the acid liquor tank 3, the tank body 6 is static for half an hour;
after standing, the first fluorine-lined ball valve 11 on the electric pump assembly is opened, then the third fluorine-lined ball valve 27 and the fourth fluorine-lined ball valve 25 on the pneumatic control pump assembly 2 are opened, and the fifth fluorine-lined ball valve 20 is closed, so that the cleaning water pipeline flows from the first bamboo joint 5 at the top end of the electric control pump 15 to the tank body 6, then flows into the pneumatic control pump 19 through the subsea valve, and finally flows into the waste liquid tank 4 through the connecting pipeline of the pneumatic control pump 19 and the waste liquid tank 4. A first bamboo joint connector 5 at a first fluorine-lined ball valve 11 on the electric control pump assembly 1 is connected with a cleaning water pipeline, water flows into the tank body 6 through bamboo joints, then the inside of the tank body 6 is cleaned, a pneumatic control pump 19 is opened after the cleaning water is cleaned for half a minute, and wastewater flows into the waste liquid tank 4 through a flange surface 90-degree elbow 23 and a fourth bamboo joint connector 24.
In the pickling process, the liquid level of the waste liquid tank 4 can be observed, when the liquid level reaches 80%, the liquid supply to the acid liquid tank 3 is stopped, and the cleaning water is stopped. And adding a proper amount of NaOH from a manhole 7 at the top of the waste liquid tank 4, stirring to enable the NaOH to react fully until the pH value is between 6 and 8, discharging the waste liquid in the waste liquid tank 4, and repeating the operation for half an hour.
In some embodiments, after cleaning, blowing air into the tank body 6 from the manhole 7 by using a blower, and after ten minutes, wearing a professional protective tool by a person to enter the tank body 6 to remove the pipeline and the blind plate in the tank; the internal effect of the tank body 6 is self-checked, and some fine parts which are not cleaned in the tank body 6 are locally processed. Until the entire can body 6 is silvery white and the entire can body shines clean.
In some embodiments, the sixth fluorine-lined ball valve 18 and the seventh fluorine-lined ball valve are opened on the electronically controlled pump assembly 1 of the present application to perform acid discharge treatment, and the blind plate pipes and the like are washed clean with clean water and then are regularly stored for next use in acid cleaning and passivation.
According to the technical scheme, the stainless steel tank car tank body 6 pickling passivation treatment device provided by the embodiment of the application completes the circulation operation of acid liquor through the combination of the electric control pump 15 and the pneumatic control pump 19 in specification and model, completes the pickling passivation work through the structure of the whole machine, enables personnel not to enter the tank body 6, and achieves the effects of protecting the personnel and improving the working efficiency.
By adopting the technical scheme, the working efficiency can be greatly improved by adopting the pickling passivation treatment device; the device is provided with a waste liquid treatment part and a waste liquid treatment scheme, so that the environment cannot be polluted by the discharge of the waste liquid after the pickling passivation is finished; the acid washing process is completed by the tool designed and adopted by the process scheme, so that personnel do not need to enter the tank body 6 for operation, and the safety of workshop work is greatly improved; compared with the prior art scheme, the acid pickling passivation completed by the technical scheme has better effect than the prior passivation paste.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It will be understood that the present application is not limited to what has been described above and shown in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (4)

1. A stainless steel tank car tank body pickling passivation treatment device is characterized by comprising an electric control pump assembly, a pneumatic control pump assembly, an acid liquid tank and a waste liquid tank;
the top of the electric control pump assembly is provided with a first bamboo joint connector, the first bamboo joint connector is connected with a manhole of the tank body through a pipeline, and the pipeline is connected with a pipeline spray head inside the tank body;
a sea bottom valve is arranged on the tank body, a second bamboo joint connector is assembled on the sea bottom valve, the second bamboo joint connector is connected with a third bamboo joint connector on the pneumatic control pump assembly through a pipeline, and the interior of the tank body is connected with and fixed to the pipeline spray head through a pipeline and a screw rod;
a first fluorine-lined ball valve is arranged at the top of the electric control pump assembly and connected to the bottom of the first bamboo joint connector, a second fluorine-lined ball valve is arranged at the middle of the electric control pump assembly and connected with the acid liquid tank through a pipeline;
the pneumatic control pump assembly is provided with a third fluorine-lined ball valve, a fourth fluorine-lined ball valve and a fifth fluorine-lined ball valve, the third fluorine-lined ball valve is connected with the acid liquid tank through a pipeline, the fourth fluorine-lined ball valve is connected with the waste liquid tank through a pipeline, and the fifth fluorine-lined ball valve is arranged on a communicating pipeline of the pneumatic control pump assembly.
2. The stainless steel tanker tank pickling and passivating device according to claim 1, wherein a filter pump is disposed between the electrically controlled pump assembly and the acid liquid tank, and the acid liquid in the acid liquid tank enters the electrically controlled pump assembly through the filter pump, and the second fluorine-lined ball valve controls the inflow of the acid liquid;
the electric control pump assembly is connected with the filter pump and sequentially provided with an electric control pump, a second fluorine-lined ball valve, a one-way valve, a steel-lined polytetrafluoroethylene composite reducing four-way joint, a first fluorine-lined ball valve and a first bamboo joint;
one end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with the one-way valve, the other end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with the first fluorine-lined ball valve, the other two ends of the steel-lined polytetrafluoroethylene composite reducing four-way joint are connected with a pressure gauge, and the other end of the steel-lined polytetrafluoroethylene composite reducing four-way joint is connected with a sixth fluorine-lined ball valve;
and a seventh fluorine-lined ball valve is arranged in the filter pump.
3. The stainless steel tanker tank pickling passivation device according to claim 1, wherein the pneumatic control pump assembly comprises a pneumatic control pump, and a fifth fluorine-lined ball valve, a first shock absorber and a third bamboo joint which are sequentially arranged at one end of the pneumatic control pump along a pipeline, a second shock absorber, a third fluorine-lined ball valve, a fourth fluorine-lined ball valve, a 90-degree flange elbow and a fourth bamboo joint which are sequentially arranged at the other end of the pneumatic control pump along a pipeline, and a fifth bamboo joint is arranged at the top end of the third fluorine-lined ball valve;
the pneumatic control pump assembly is connected with the acid liquid tank through the fifth bamboo joint connector and connected with the waste liquid tank through the fourth bamboo joint connector.
4. The stainless steel tanker tank pickling and passivating treatment device of claim 1, wherein a stainless steel pickling and passivating solution is disposed in the acid liquor tank;
the stainless steel pickling passivation solution comprises: 15 parts of oxalic acid, 15 parts of nitric acid, 3 parts of dodecyl benzene sulfonic acid and 1 part of ammonium oxide.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203295608U (en) * 2013-04-26 2013-11-20 中冶南方工程技术有限公司 Working and cleaning circulating system for coating liquid
CN104438170A (en) * 2013-09-12 2015-03-25 深圳市日联科技有限公司 Washing unit reliable in liquid path distribution
CN206512280U (en) * 2017-01-20 2017-09-22 重庆万石洋机电有限公司 Integrated washer is washed in pickling
CN207206197U (en) * 2017-09-27 2018-04-10 哈工大机器人（合肥）国际创新研究院 A kind of polishing fluid automatic circulation mechanism applied to intelligent plasma polissoir
CN211999931U (en) * 2020-04-23 2020-11-24 杭州明珠化学清洗有限公司 High-efficient stainless steel tank body cleaning system
CN213974044U (en) * 2020-12-23 2021-08-17 上海豚湾环保设备科技有限公司 Pickling vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203295608U (en) * 2013-04-26 2013-11-20 中冶南方工程技术有限公司 Working and cleaning circulating system for coating liquid
CN104438170A (en) * 2013-09-12 2015-03-25 深圳市日联科技有限公司 Washing unit reliable in liquid path distribution
CN206512280U (en) * 2017-01-20 2017-09-22 重庆万石洋机电有限公司 Integrated washer is washed in pickling
CN207206197U (en) * 2017-09-27 2018-04-10 哈工大机器人（合肥）国际创新研究院 A kind of polishing fluid automatic circulation mechanism applied to intelligent plasma polissoir
CN211999931U (en) * 2020-04-23 2020-11-24 杭州明珠化学清洗有限公司 High-efficient stainless steel tank body cleaning system
CN213974044U (en) * 2020-12-23 2021-08-17 上海豚湾环保设备科技有限公司 Pickling vehicle

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