CN213624389U - Continuous casting billet thermal acid etching device with precipitation filtering function - Google Patents
Continuous casting billet thermal acid etching device with precipitation filtering function Download PDFInfo
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- CN213624389U CN213624389U CN202022152086.3U CN202022152086U CN213624389U CN 213624389 U CN213624389 U CN 213624389U CN 202022152086 U CN202022152086 U CN 202022152086U CN 213624389 U CN213624389 U CN 213624389U
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Abstract
The utility model discloses a continuous casting billet thermal acid etching device with precipitation and filtration functions, which comprises an acid etching tank, an acid storage device, a heating rod, a temperature controller and an acid pump; the side wall of the acid etching groove is respectively provided with an acid inlet, an acid outlet A and an acid discharge A; a heating rod and a temperature controller are arranged in the acid storage device; the acid storage device is respectively provided with an acid inlet, an acid outlet hole B and an acid discharge hole B, and is characterized in that: the acid corrosion-resistant device also comprises a filter tank, wherein the filter tank is provided with a filter tank acid inlet matched with the acid corrosion tank and a filter tank acid outlet matched with the acid storage device; a filter screen is arranged at the front end of the acid outlet of the filter tank; a filter plate is arranged between the acid inlet of the filter tank and the acid outlet of the filter tank in the filter tank. The utility model discloses in the structure, through the setting of filter-tank, at first flow in the sedimentation filter-tank when making the acidizing fluid that has the iron scale backward flow, the iron scale that the proportion is big can sink into the tank bottom, has effectively solved the iron scale and has together got into the acidizing fluid tank along with the acidizing fluid and cause the problem of acidizing fluid pollution.
Description
Technical Field
The utility model belongs to the technical field of steel verifying attachment, concretely relates to continuous casting billet hot acid loses device with deposit filtering capability.
Background
The surface quality of the continuous casting billet is more and more emphasized. The current inspection method is mainly a visual inspection method, and some defects which are fine or hidden under the iron scale are easy to leak, so that the defects need to be inspected by a thermal acid etching inspection method. In the existing thermal acid etching device, for example, the patent numbers are as follows: 201620173694.3, the patent names: the utility model discloses a steel macrostructure thermal acid etching device, which comprises an acid etching tank, an acid storage device, a heating rod, a temperature controller and an acid pump; the acid etching tank is a closed container with an opening at the upper end, and the upper port part of the acid etching tank is sealed by an openable cover plate; the upper part of the side wall of the acid etching groove is provided with an acid inlet hole, and the lower part of the side wall of the acid etching groove is provided with an acid outlet hole A and an acid discharge hole A; a heating rod and a temperature controller are arranged in the acid storage device; the bottom of the acid storage device is provided with an acid outlet hole B and an acid discharge hole B, the side part of the upper end of the acid storage device is provided with an acid inlet, and the acid discharge hole B at the bottom of the acid storage device is provided with a valve; the acid etching groove is arranged above the acid storage device, and an acid outlet hole B at the bottom of the acid storage device is connected with an acid inlet hole pipeline at the upper part of the side wall of the acid etching groove through an acid pump; the acid discharge hole A at the lower part of the side wall of the acid etching tank is connected with an acid inlet pipeline at the side part of the upper end of the acid storage device, and the acid outlet hole A and the acid discharge hole A at the lower part of the side wall of the acid etching tank are provided with regulating valves. In the device, the acidizing fluid is used through acid pump circulation heating, has guaranteed the homogeneity that the sample corrodes promptly, and the availability factor of acid that also improves practices thrift the cost.
However, when the continuous casting billet is inspected, because the surface of the continuous casting billet has more iron scales, the iron scales corroded in the corrosion process are inevitably discharged into the acid liquid tank along with the acid liquid, so that the acid liquid is polluted, the frequency of replacing the acid liquid is increased, the workload is increased, the cost is increased, and the utilization rate of the acid liquid is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a continuous casting billet hot acid loses device with deposit filtering capability to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: a continuous casting billet thermal acid etching device with a precipitation filtering function comprises an acid etching tank, an acid storage device, a heating rod, a temperature controller and an acid pump; the side wall of the acid etching groove is respectively provided with an acid inlet, an acid outlet A and an acid discharge A; a heating rod and a temperature controller are arranged in the acid storage device; the acid storage device is respectively provided with an acid inlet, an acid outlet hole B and an acid discharge hole B, and is characterized in that: the acid corrosion-resistant device also comprises a filter tank, wherein the filter tank is provided with a filter tank acid inlet matched with the acid corrosion tank and a filter tank acid outlet matched with the acid storage device; a filter screen is arranged at the front end of the acid outlet of the filter tank; a filter plate is arranged between the acid inlet of the filter tank and the acid outlet of the filter tank in the filter tank.
Further: the upper part of the side wall of the acid etching tank is provided with an overflow hole, and the overflow hole at the upper part of the side wall of the acid etching tank is connected with an acid inlet pipeline of the filter tank; the upper part of the side wall of the acid etching groove is provided with a hole and is connected with spraying equipment.
Further: the heating rod adopts a graphite electrode heating rod.
Further: the filter screen is in plug fit or bolt fit with the filter tank.
Further: the filter plate is vertically arranged or obliquely arranged.
Further: the filter plate is a sieve plate with tapered holes, and the area of the filter plate facing to one side of the acid inlet of the filter tank is small.
Further: the filter plate comprises a plurality of triangular filter wires arranged in parallel and supporting bars welded and fixed with the filter wires.
The utility model has the advantages that: the utility model discloses in the structure, through the setting of filter-tank, at first flow in the sedimentation filter-tank when making the acidizing fluid that has the iron scale backward flow, the iron scale that the proportion is big can sink into the tank bottom, has effectively solved the iron scale and has together got into the acidizing fluid tank along with the acidizing fluid and cause the problem of acidizing fluid pollution.
In addition, this scheme still has simple structure, on current basis slightly change can, advantage with low costs, the iron scale clearance is simple, only need regularly to deposit the iron scale of filter-tank bottom clear up can. Meanwhile, compared with the method that a filter screen is additionally arranged at the acid liquor outlet of the corrosion tank, the device can not cause the problem of unsmooth acid liquor backflow.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an acid etching tank in the structure of the present invention;
fig. 3 is a schematic structural diagram of the filter plate according to the present invention.
The sequence numbers in the figures illustrate: 1 is an acid etching groove; 2 is an acid storage device; 3 is a heating rod; 4 is a temperature controller; 5 is an acid pump; 6 is an acid inlet hole; 7 is an acid outlet hole A; 8 is an acid discharge hole A; 9 is an acid outlet hole B; 10 is an acid discharge hole B10; 11 is an acid inlet; 12 is an overflow hole; 13 is spraying equipment; 14 is a filter tank; 15 is a filter plate; 16 is a filter screen; 17 is an acid inlet of the filter tank; 18 is an acid outlet of the filter tank; 151 is filter wire; 152 are support bars.
Detailed Description
As shown in fig. 1-3, the continuous casting billet thermal acid etching device with the precipitation and filtration functions of the present invention comprises an acid etching tank 1, an acid storage device 2, a heating rod 3, a temperature controller 4 and an acid pump 5; the acid corrosion-resistant device also comprises a filter tank 14, wherein the filter tank is provided with a filter tank acid inlet 17 matched with the acid corrosion tank and a filter tank acid outlet 18 matched with the acid storage device; a filter screen 16 is arranged at the front end of the acid outlet of the filter tank; a filter plate 15 is arranged between the acid inlet of the filter tank and the acid outlet of the filter tank in the filter tank; the acid etching tank 1 is a closed container with an opening at the upper end, and the opening part at the upper end of the acid etching tank 1 is sealed by an openable cover plate; the upper part of the side wall of the acid etching tank 1 is provided with an acid inlet hole 6, and the lower part of the side wall of the acid etching tank 1 is provided with an acid outlet hole A7 and an acid outlet hole A8; a heating rod 3 and a temperature controller 4 are arranged in the acid storage device 2; the bottom of the acid storage device 2 is provided with an acid outlet B9 and an acid discharge hole B10, the side part of the upper end of the acid storage device 2 is provided with an acid inlet 11, and the acid discharge hole B10 at the bottom of the acid storage device 2 is provided with a valve; the acid etching tank 1 is positioned above the filter tank 14 and the acid storage device 2, and an acid outlet B9 at the bottom of the acid storage device 2 is connected with an acid inlet 6 at the upper part of the side wall of the acid etching tank 1 through an acid pump 5; the acid outlet A7 at the lower part of the side wall of the acid etching tank 1 is connected with the acid inlet 17 of the filter tank through a pipeline, the acid outlet 18 of the filter tank is connected with the acid inlet 11 of the acid storage device 2 through a pipeline, and the acid outlet A7 and the acid outlet A8 at the lower part of the side wall of the acid etching tank 1 are provided with regulating valves.
Preferably: in order to prevent the acid liquor from overflowing, the upper part of the side wall of the acid etching tank 1 is provided with an overflow hole 12, and the overflow hole 12 at the upper part of the side wall of the acid etching tank 1 is connected with an acid inlet 17 of the filter tank through a pipeline. In order to facilitate the cleaning of the acid etching tank 1, the upper part of the side wall of the acid etching tank 1 is provided with a hole which is connected with a spraying device 13.
Preferably: the heating rod 3 adopts a graphite electrode heating rod.
Preferably: in order to prevent the damage of the acid etching tank 1 in the adding process of the sample, an inner layer baffle plate with holes is arranged in the inner cavity of the acid etching tank 1.
Preferably: the filter screen is positioned at the acid outlet 18 of the filter tank and is in inserted fit with the interior of the tank body of the filter tank or is fixedly connected with the interior of the tank body of the filter tank through bolts; the filter screen can effectively prevent impurities such as iron scale and the like from entering the acid storage device.
Preferably: the filter plate is vertically or obliquely arranged to divide the filter tank into two regions, and the acid inlet of the filter tank and the acid outlet of the filter tank are respectively positioned in the two regions.
Preferably: the filter plate is a sieve plate with tapered holes (frustum-shaped holes), and the area of one side of the filter tank facing the acid inlet is small, so that acid liquor can easily pass through the filter tank and the blocking condition of iron oxide scales is not easily caused.
Preferably: as shown in fig. 3, the filter plate includes a plurality of filter wires 151 with triangular cross-section and support bars 152 welded to the filter wires; the corners of the filter wires are welded and fixed with the supporting bars to form a gap with a narrow top and a wide bottom in the figure, and the narrow side faces to the side of the acid inlet of the filter tank. The filter plate can be in inserted fit with the groove body of the filter groove or fixed by welding; can form an inclination angle similar to the angle in the figure 3, is convenient for the precipitation of impurities, and can be discharged through a slag discharge port at the lower part when the impurities are accumulated to a certain degree.
Preferably: as shown in fig. 2, the lower part of the acid etching tank is a bevel edge, and the acid outlet hole is positioned at a low point, so that impurities can be conveniently discharged. Meanwhile, a horizontal supporting sieve plate is arranged at the bottom, so that acid etching operation in the acid etching tank is facilitated.
The utility model discloses the working process of structure as follows:
when acid liquor is injected into the acid storage device 2, firstly, a valve of an acid discharge hole B10 at the bottom of the acid storage device 2 and an adjusting valve at an acid discharge hole B10 at the lower part of the side wall of the acid etching tank 1 are closed; opening a regulating valve at an acid outlet A7 on the lower part of the side wall of the acid etching tank 1; acid liquor is injected into the acid etching tank 1, and the acid liquor enters the acid storage device 2 from an acid outlet A7 at the lower part of the side wall of the acid etching tank 1 through an acid inlet 11 at the side part of the upper end of the acid storage device 2. When the test piece is etched, the regulating valve at the acid outlet A7 on the lower part of the side wall of the acid etching groove 1 is closed, the test piece is placed into the inner cavity of the acid etching groove 1, and the cover plate is closed; starting the heating rod 3 and the temperature controller 4, and when the temperature controller 4 displays that the temperature reaches the test temperature, starting the acid pump 5 to enable the acid liquor to enter the inner cavity of the acid etching tank 1 from the acid outlet B9 at the bottom of the acid storage device 2 through the acid inlet 6 at the upper part of the side wall of the acid etching tank 1; when the liquid level of the acid solution is higher than the test piece, adjusting a regulating valve at the acid outlet A7 at the lower part of the side wall of the acid etching groove 1, so that the flow of the acid from the acid storage device 2 to the acid etching groove 1 through the acid pump 5 is equal to the flow of the acid solution discharged from the acid outlet A7 of the acid etching groove 1, the etching temperature of the test piece is kept unchanged in the circulating flow process, and the test piece is etched. After the test is finished, the acid pump 5 is closed, so that the acid liquor in the acid etching tank 1 flows into the acid storage device 2 after being filtered through the filter tank 14 from the acid discharge hole A8 of the acid etching tank 1; and then closing the regulating valve at the acid outlet A7 at the lower part of the side wall of the acid etching tank 1, cleaning the test piece in the acid etching tank 1 through the spraying equipment 13, and opening the regulating valve at the acid outlet A8 at the lower part of the side wall of the acid etching tank 1 to discharge the cleaning solution from the acid etching tank 1. When the acid liquor needs to be replaced, the acid discharge hole B10 at the bottom of the acid storage device 2 is opened, so that the acid liquor is discharged. When the filter is used for filtering in the filter tank, the filter plate can effectively reduce the impact and stirring of the entering acid liquor, is beneficial to the settlement of iron oxide scales and the like carried in the acid liquor, and is beneficial to the collection and treatment after settlement due to the fact that the settlement area is large at the top and small at the bottom. The filter screen at the acid discharge port of the filter tank can further prevent impurities from being mixed.
In summary, in the structure of the utility model, the filter tank is arranged, so that the acid liquor with iron scales flows into the precipitation filter tank firstly when flowing back, the iron scales with large specific gravity can sink into the tank bottom, and the problem that the iron scales enter the acid liquor tank together with the acid liquor is solved; the acid liquor inlet and the acid liquor outlet are arranged in a staggered mode, and the filter screen is additionally arranged at the acid liquor outlet, so that the problem that part of iron scales and other impurities directly enter the acid liquor outlet to enter the acid liquor tank due to overlarge impact force during acid liquor backflow can be effectively solved, and the precipitation and filtration effects are improved.
In addition, this scheme still has simple structure, on current basis slightly change can, advantage with low costs, the iron scale clearance is simple, only need regularly to deposit the iron scale of filter-tank bottom clear up can. Meanwhile, compared with the method that a filter screen is additionally arranged at the acid liquor outlet of the corrosion tank, the device can not cause the problem of unsmooth acid liquor backflow.
Claims (7)
1. A continuous casting billet thermal acid etching device with a precipitation filtering function comprises an acid etching tank, an acid storage device, a heating rod, a temperature controller and an acid pump; the side wall of the acid etching groove is respectively provided with an acid inlet, an acid outlet A and an acid discharge A; a heating rod and a temperature controller are arranged in the acid storage device; the acid storage device is respectively provided with an acid inlet, an acid outlet hole B and an acid discharge hole B, and is characterized in that: the acid corrosion-resistant device also comprises a filter tank, wherein the filter tank is provided with a filter tank acid inlet matched with the acid corrosion tank and a filter tank acid outlet matched with the acid storage device; a filter screen is arranged at the front end of the acid outlet of the filter tank; a filter plate is arranged between the acid inlet of the filter tank and the acid outlet of the filter tank in the filter tank.
2. The continuous casting billet thermal acid etching device with the precipitation filtering function as claimed in claim 1, wherein: the upper part of the side wall of the acid etching tank is provided with an overflow hole, and the overflow hole at the upper part of the side wall of the acid etching tank is connected with an acid inlet pipeline of the filter tank; the upper part of the side wall of the acid etching groove is provided with a hole and is connected with spraying equipment.
3. The continuous casting billet thermal acid etching device with the precipitation filtering function as claimed in claim 1, wherein: the heating rod adopts a graphite electrode heating rod.
4. The continuous casting billet thermal acid etching device with the precipitation filtering function as claimed in claim 1, wherein: the filter screen is in plug fit or bolt fit with the filter tank.
5. The continuous casting billet thermal acid etching device with the precipitation filtering function as claimed in claim 1, wherein: the filter plate is vertically arranged or obliquely arranged.
6. The continuous casting billet thermal acid etching device with the precipitation filtering function as claimed in claim 1, wherein: the filter plate is a sieve plate with tapered holes, and the area of the filter plate facing to one side of the acid inlet of the filter tank is small.
7. The continuous casting billet thermal acid etching device with the precipitation filtering function as claimed in claim 1, wherein: the filter plate comprises a plurality of triangular filter wires arranged in parallel and supporting bars welded and fixed with the filter wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022152086.3U CN213624389U (en) | 2020-09-27 | 2020-09-27 | Continuous casting billet thermal acid etching device with precipitation filtering function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022152086.3U CN213624389U (en) | 2020-09-27 | 2020-09-27 | Continuous casting billet thermal acid etching device with precipitation filtering function |
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| CN213624389U true CN213624389U (en) | 2021-07-06 |
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| CN202022152086.3U Active CN213624389U (en) | 2020-09-27 | 2020-09-27 | Continuous casting billet thermal acid etching device with precipitation filtering function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564600A (en) * | 2021-07-28 | 2021-10-29 | 重庆钢铁股份有限公司 | Hot acid corrosion process for billet |
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2020
- 2020-09-27 CN CN202022152086.3U patent/CN213624389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564600A (en) * | 2021-07-28 | 2021-10-29 | 重庆钢铁股份有限公司 | Hot acid corrosion process for billet |
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Address after: 115005 metallurgical street, old border district, Yingkou City, Liaoning Province Patentee after: Japan Steel Yingkou Medium Plate Co.,Ltd. Address before: 115005 metallurgical street, old border district, Yingkou City, Liaoning Province Patentee before: MINMETALS YINGKOU MEDIUM PLATE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |