CN216107231U - Automatic pickling system for low-power hot pickling test - Google Patents
Automatic pickling system for low-power hot pickling test Download PDFInfo
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- CN216107231U CN216107231U CN202122650875.4U CN202122650875U CN216107231U CN 216107231 U CN216107231 U CN 216107231U CN 202122650875 U CN202122650875 U CN 202122650875U CN 216107231 U CN216107231 U CN 216107231U
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Abstract
The utility model discloses an automatic pickling system for a low-power hot pickling test, relates to the technical field of low-power hot pickling, and aims to solve the problems that an existing automatic pickling device is complex in structure, does not have a drying function, cannot be directly used for detection when a sample is produced, and is relatively waste when acid liquor after pickling is directly mixed with spray water for discharge; the acid washing device comprises a pickling tank, wherein the middle part of one side of the pickling tank is provided with an acid inlet pipe, the lower end of one side of the pickling tank is provided with a plurality of liquid discharge ports, the middle part of one side of the pickling tank is provided with a plurality of overflow ports, and the upper part in the pickling tank is fixedly provided with a plurality of flushing nozzles and an acid mist purifier; the upper end of the pickling tank is provided with a tank cover, a hot air drying device is arranged in the pickling tank, and the air blowing direction faces to the bottom in the pickling tank; the liquid outlet is connected with a circulating pipeline provided with a liquid outlet valve and communicated to a circulating acid tank, and the circulating acid tank is communicated to an acid inlet pipe through a pipeline provided with a liquid inlet valve; the circulating acid tank is provided with a heating device; the utility model has simple and reasonable structure, small occupied area, high efficiency and high safety.
Description
Technical Field
The utility model relates to the technical field of low-power hot pickling, in particular to an automatic pickling system for a low-power hot pickling test.
Background
The low-power hot pickling is a method for observing the macroscopic structure and defects of a metal material by removing oxide scales and rusty materials on the surface of steel by using a high-temperature acid solution.
At present, the traditional hot pickling method is used by quality inspection departments and scientific research units in the industries of machinery, metallurgy and the like, an acid-proof material vessel is used as a pickling container, hydrochloric acid is injected into the pickling container, then heating and pickling are carried out on steel billets, and the samples after pickling are required to be transferred to other containers for cleaning and drying. Therefore, the working strength of inspectors is high, the heated hydrochloric acid can generate acid mist to pollute the environment and damage people, and the working efficiency is low.
The utility model discloses a utility model patent with publication number CN209979339U and name of full-automatic steel billet low-power pickling device discloses an automatic pickling device, wherein a pickling box is provided with a placing box, an acid discharging temporary storage box and a pickling branch box, which can realize automatic pickling, but the spraying and other places of the pickling box have complex structures, do not have drying function, and can not realize sample discharge and direct detection, and in addition, acid liquor after pickling is directly mixed with spray water and discharged, which is more waste and needs to be improved; therefore, there is a need for an automatic pickling system with low-power hot pickling test to solve this problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic pickling system for a low-power hot pickling test, and aims to solve the problems that an existing automatic pickling device is complex in structure, does not have a drying function, cannot be directly used for detection when a sample is produced, and is relatively waste when acid liquor after pickling is directly mixed with spray water for discharge.
In order to achieve the purpose, the utility model provides the following technical scheme: an automatic pickling system for a low-power hot pickling test comprises a pickling tank, wherein an acid inlet pipe is arranged in the middle of one side of the pickling tank, a plurality of liquid discharge ports are formed in the lower end of one side of the pickling tank, a plurality of overflow ports are formed in the middle of one side of the pickling tank, and a plurality of flushing nozzles and acid mist purifiers are fixedly arranged at the upper part in the pickling tank; the upper end of the pickling tank is provided with a tank cover, a hot air drying device is arranged in the pickling tank, and the air blowing direction faces to the bottom in the pickling tank; the liquid outlet is connected with a circulating pipeline provided with a liquid outlet valve and communicated to a circulating acid tank, and the circulating acid tank is communicated to an acid inlet pipe through a pipeline provided with a liquid inlet valve; the circulating acid tank is provided with a heating device.
Preferably, the pickling tank is also provided with an acid tank, and the acid tank and the circulating acid tank are fixedly arranged at the lower end of the pickling tank; the liquid discharge valve and the liquid inlet valve are three-way electromagnetic valves, wherein the liquid inlet end of the liquid discharge valve is connected with each liquid discharge port through a branch pipe, one liquid outlet end is connected with the circulating acid tank, and the other liquid outlet end is connected with a waste liquid pipe for discharge; the liquid outlet end of the liquid inlet valve is connected with an acid inlet pipe, and the two liquid inlet ends of the liquid inlet valve are respectively connected with an acid tank and a circulating acid tank.
Preferably, the bottom in the pickling tank is fixedly provided with a plurality of placing frames which are straight rod-shaped and arranged in parallel at intervals.
Preferably, the lower end of the pickling tank is also provided with a wedge-shaped base, and the height of one side of the wedge-shaped base, which is close to the liquid outlet, is lower than that of the opposite side.
Preferably, the acid mist purifier is provided with a plurality of air suction openings which are distributed at intervals along the horizontal direction of the side wall of the pickling tank.
Preferably, a cleaning pipe is fixed on the inner side wall of the pickling tank and horizontally arranged along the side wall of the pickling tank, and a plurality of washing nozzles are distributed at intervals along the cleaning pipe.
Preferably, the tank cover is of a groove shape with a downward opening, the lower end of the tank cover is in sliding connection with the pickling tank, the hot air blow-drying device is fixedly arranged at the top in the tank cover, and the air outlet is provided with an electric switch baffle.
Preferably, the outer wall of the pickling tank is provided with a control panel which is in signal connection with the heating device, the hot air drying device, the liquid inlet valve, the liquid outlet valve, the flushing nozzle and the acid mist purifier respectively.
Compared with the prior art, the utility model has the beneficial effects that:
1. this automatic pickling system of low power hot pickling test, simple structure is reasonable, and area is little, and the operation is stable, and easy operation only needs the manual work to put into the sample and take out the sample, and other operations are whole to be gone on automatically, and efficiency is higher and artifical intensity of labour greatly reduced, and the operational safety improves greatly.
2. This experimental automatic pickling system of low power hot pickling is provided with the circulation acid jar, not only can make the acidizing fluid circulation in order to maintain the pickling bath acidizing fluid temperature comparatively invariable when the pickling to make sample inspection face receive the degree of corrosion unanimous, the display effect is good, and proof quality obtains promoting, can improve the acidizing fluid utilization ratio moreover, compares in the pickling solution and flush fluid combined discharge in addition, and this system more can improve spent acid value.
Drawings
FIG. 1 is a schematic perspective view of the pickling tank of the present invention;
FIG. 2 is a schematic front view of an embodiment of the present invention;
FIG. 3 shows macrostructure display of the sample after automatic pickling according to the present invention.
In the figure: 1. a pickling tank; 2. placing a rack; 3. an acid inlet pipe; 4. a liquid discharge port; 5. an overflow port; 6. flushing the nozzle; 7. an acid mist purifier; 8. a slot cover; 9. a hot air drying device; 11. an acid tank; 12. and (5) circulating the acid tank.
Detailed Description
As shown in fig. 1, an automatic pickling system for a low-power hot pickling test comprises a pickling tank 1, wherein an acid inlet pipe 3 is arranged in the middle of one side of the pickling tank 1, preferably, the acid inlet pipe 3 extends into the pickling tank 1 and faces the bottom to prevent acid from splashing seriously, a plurality of liquid discharge ports 4 are formed in the lower end of one side of the pickling tank 1, each liquid discharge port 4 can be opened and closed under the control of a valve plate, a plurality of overflow ports 5 are formed in the middle of one side of the pickling tank 1 to prevent the liquid level from being too high, a plurality of flushing nozzles 6 and an acid mist purifier 7 are fixedly arranged on the upper portion in the pickling tank 1, wherein the acid mist purifier 7 mainly functions in air draft and demisting to prevent the acid mist from dissipating and affecting the environment, and the demisting mode can be a commercially available common filter screen or spray; the upper end of the pickling tank 1 is provided with a tank cover 8, a hot air blow-drying device 9 is arranged in the tank cover, and the blowing direction faces to the bottom in the pickling tank 1; the liquid outlet 4 is connected with a circulating pipeline provided with a liquid outlet valve and communicated to a circulating acid tank 12, and the circulating acid tank 12 is communicated to the acid inlet pipe 3 through a pipeline provided with a liquid inlet valve; the circulating acid tank 12 is provided with a heating device; the overflow port 5 can be communicated to the circulating acid tank 12 through a pipeline for recycling.
Referring to fig. 2, the pickling tank 1 is further provided with an acid tank 11, which is fixedly arranged at the lower end of the pickling tank 1 together with a circulating acid tank 12, and the acid tank 11 is also provided with a heating device, or shares the same heating device with the circulating acid tank 12, and can adopt a heat exchanger; the liquid discharge valve and the liquid inlet valve are three-way electromagnetic valves, wherein the liquid inlet end of the liquid discharge valve is connected with each liquid discharge port 4 through a branch pipe, one liquid outlet end is connected with the circulating acid tank 12, the other liquid outlet end is connected with a waste liquid pipe for discharge, and the liquid discharge direction of the liquid discharge valve can be changed to discharge the liquid to the circulating acid tank 12 or the waste liquid pipe, so that the recycling of the acid liquid and the different path discharge of the waste liquid are realized; the liquid outlet end of the liquid inlet valve is connected with an acid inlet pipe 3, the two liquid inlet ends of the liquid inlet valve are respectively connected with an acid tank 11 and a circulating acid tank 12, and the liquid inlet of the acid inlet pipe 3 from the acid tank 11 or the circulating acid tank 12 can be changed through the passage direction of the liquid inlet valve.
The bottom fixed mounting in the descaling bath 1 has a plurality of rack 2, and it is straight rod-like and parallel interval setting each other for place the sample, not only do benefit to increase acidizing fluid area of contact, can prevent moreover that the sample from blocking liquid and slowing down row of acids speed and even have the residue when flowing back.
The lower extreme of descaling bath 1 still is equipped with wedge base, and its one side that is close drain port 4 highly is less than the offside height, and is specific, can set up the angle to about 5, and lower right side shows in figure 1, can make things convenient for the quick discharge of acidizing fluid and flush fluid like this, and the bottom can not remain.
The acid mist purifier 7 is preferably provided with a plurality of air suction ports which are distributed at intervals along the horizontal direction of the side wall of the pickling tank 1 so as to increase the demisting efficiency.
The arrangement of the flushing nozzle 6 can be made in the following way: be fixed with the scavenge pipe on the descaling bath 1 inside wall, it sets up along descaling bath 1 side wall level, and a plurality of washes nozzle 6 along scavenge pipe interval distribution, washes the direction and towards the descaling position of descaling bath 1 bottom.
In a preferred embodiment, the tank cover 8 is a groove with a downward opening, the lower end of the tank cover is connected with the pickling tank 1 in a sliding manner, the sliding connection can be electrically controlled or manually operated, the hot air blow-drying device 9 is fixedly arranged at the top in the tank cover 8, and the air outlet is provided with an electric switch baffle plate to prevent acid mist from entering and corroding when air is not blown.
Example (b):
the structure among the above-mentioned embodiment is adopted to this embodiment, in addition, control panel is installed to the outer wall of descaling bath 1, and its and heating device, hot-blast device 9 that weathers, feed liquor valve, flowing back valve, washing nozzle 6 and acid mist clarifier 7 signal connection respectively, and control module in the control panel is common MCU module, and it specifically realizes following step:
after the control panel sets the acid inlet temperature, the acid washing time and the cleaning and flushing time, the sample is placed into the acid washing tank, the tank cover is closed, and the acid mist purifier is opened.
The inlet valve is opened, the acid liquor stored in the acid tank or the circulating acid tank is heated to a set temperature through the heat exchanger and then enters a sample position in the pickling tank, when the acid liquor reaches the position of an overflow port, the acid liquor is discharged into the circulating acid tank, the acid liquor circulates in the circulating acid tank, the heat exchanger and the pickling tank, the flowing and temperature constancy of the acid liquor are realized, and the corrosion degree of the sample is ensured to be consistent, in the embodiment, the temperature control precision of the acid liquor heated through the heat exchanger is +/-2 ℃.
And after the set pickling time is reached, the liquid inlet valve is closed, the liquid outlet valve is opened to the direction of the circulating acid tank, and the acid liquid is quickly discharged into the circulating acid tank.
After the acid liquor is discharged, the liquid discharge valve is switched to the direction of the waste liquid pipe, and a washing nozzle is used for washing the test surface of the sample by using a high-pressure water gun to spray 3-5% (volume ratio) sodium carbonate aqueous solution at 70 ℃.
And after the washing is finished, closing the washing nozzle, and vertically blowing hot air by a hot air blow-drying device positioned at the position of the groove cover to dry the test surface of the test sample.
After drying the test surface, the acid mist purification device is closed, the tank cover is opened, and the hot pickling process is finished.
When the pickling tank is used for feeding liquid for the first time, the liquid inlet valve is opened to the direction of the acid tank to feed new acid liquid, a period of time passes after the acid liquid in the pickling tank reaches the overflow port, and after a certain amount of acid liquid exists in the circulating acid tank, the liquid inlet valve is switched to the direction of the circulating acid tank; after the acid solution in the circulating acid tank is used for a certain period of time, for example, after two or 3 times of sample acid washing, the liquid inlet valve is opened to the direction of the circulating acid tank, the liquid outlet valve is opened to the direction of the waste liquid pipe, and the waste acid is collected from the waste liquid pipe for subsequent treatment, for example, waste acid regeneration or reuse, etc.
The automatic pickling system of the low-power hot pickling test in the embodiment has the advantages that the structure is scientific and reasonable, the operation is stable under the severe environment, the fault rate is low, one-key starting is realized, the hot pickling test of the sample is completed in the same groove body, the whole process does not need to move the sample and perform manual intervention, the full automation of the pickling process is realized, and the working efficiency is greatly improved.
Furthermore, the control module in the control panel can be upgraded to store a plurality of pickling modes, such as different pickling modes of different time, different overflow speeds, different drying speeds, different material samples, and the like, and a temperature measuring unit can be arranged in the pickling tank for adjusting the power of the heating device, and the like, so that the system can be easily realized.
In addition, optionally, the liquid discharge valve can also be a one-way valve and is only communicated to the circulating acid tank, but a waste liquid port needs to be arranged beside the liquid discharge port 4 and is connected with a waste liquid pipe through the one-way valve, and the method belongs to pipeline transformation with the same principle; the acid tank 11 is not an essential structure, and can be provided with only a circulating acid tank, and sufficient acid liquor can be added into the circulating acid tank before pickling each time, and at the moment, the liquid inlet valve is also a one-way valve, and the principle is the same as that of the embodiment; of course, an acid pump is required to be arranged on the pipeline of the acid inlet pipe to provide conveying power.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. The utility model provides an experimental automatic pickling system of low power hot pickling which characterized in that: comprises a pickling tank (1), wherein the middle part of one side of the pickling tank is provided with an acid inlet pipe (3), the lower end of one side of the pickling tank is provided with a plurality of liquid discharge ports (4), the middle part of one side of the pickling tank is provided with a plurality of overflow ports (5), and the upper part in the pickling tank (1) is fixedly provided with a plurality of flushing nozzles (6) and an acid mist purifier (7); the upper end of the pickling tank (1) is provided with a tank cover (8) in which a hot air drying device (9) is arranged, and the air blowing direction faces to the bottom in the pickling tank (1); the liquid outlet (4) is connected with a circulating pipeline provided with a liquid outlet valve and communicated to a circulating acid tank (12), and the circulating acid tank (12) is communicated to an acid inlet pipe (3) through a pipeline provided with a liquid inlet valve; the circulating acid tank (12) is provided with a heating device.
2. The automatic pickling system for the low power hot pickling test according to claim 1, wherein the automatic pickling system comprises: the pickling tank (1) is also provided with an acid tank (11), and the acid tank and the circulating acid tank (12) are fixedly arranged at the lower end of the pickling tank (1); the liquid discharge valve and the liquid inlet valve are three-way electromagnetic valves, wherein the liquid inlet end of the liquid discharge valve is connected with each liquid discharge port (4) through a branch pipe, one liquid outlet end is connected with the circulating acid tank (12), and the other liquid outlet end is connected with a waste liquid pipe for discharge; the liquid outlet end of the liquid inlet valve is connected with an acid inlet pipe (3), and the two liquid inlet ends of the liquid inlet valve are respectively connected with an acid tank (11) and a circulating acid tank (12).
3. The automatic pickling system for the low power hot pickling test according to claim 1, wherein the automatic pickling system comprises: the bottom in the pickling tank (1) is fixedly provided with a plurality of placing racks (2) which are straight rod-shaped and are arranged in parallel at intervals.
4. The automatic pickling system for the low power hot pickling test according to claim 1, wherein the automatic pickling system comprises: the lower end of the pickling tank (1) is also provided with a wedge-shaped base, and the height of one side of the wedge-shaped base, which is close to the liquid outlet (4), is lower than that of the opposite side.
5. The automatic pickling system for the low power hot pickling test according to claim 1, wherein the automatic pickling system comprises: the acid mist purifier (7) is provided with a plurality of air suction openings which are distributed at intervals along the horizontal direction of the side wall of the pickling tank (1).
6. The automatic pickling system for the low power hot pickling test according to claim 1, wherein the automatic pickling system comprises: be fixed with the scavenge pipe on the descaling bath (1) inside wall, it sets up along descaling bath (1) lateral wall level, and a plurality of washes nozzle (6) along scavenge pipe interval distribution.
7. The automatic pickling system for the low power hot pickling test according to claim 1, wherein the automatic pickling system comprises: the tank cover (8) is in a groove shape with a downward opening, the lower end of the tank cover is connected with the pickling tank (1) in a sliding mode, the hot air blow-drying device (9) is fixedly arranged at the top of the tank cover (8), and the air outlet is provided with an electric switch baffle.
8. The automatic pickling system for the low power hot pickling test according to claim 1, wherein the automatic pickling system comprises: the outer wall of the pickling tank (1) is provided with a control panel which is respectively in signal connection with a heating device, a hot air blow-drying device (9), a liquid inlet valve, a liquid discharge valve, a washing nozzle (6) and an acid mist purifier (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122650875.4U CN216107231U (en) | 2021-11-02 | 2021-11-02 | Automatic pickling system for low-power hot pickling test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122650875.4U CN216107231U (en) | 2021-11-02 | 2021-11-02 | Automatic pickling system for low-power hot pickling test |
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| Publication Number | Publication Date |
|---|---|
| CN216107231U true CN216107231U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122650875.4U Active CN216107231U (en) | 2021-11-02 | 2021-11-02 | Automatic pickling system for low-power hot pickling test |
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| CN (1) | CN216107231U (en) |
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2021
- 2021-11-02 CN CN202122650875.4U patent/CN216107231U/en active Active
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