CN220387484U - Device for preventing overflow of cooling emulsion of cold continuous rolling unit - Google Patents
Device for preventing overflow of cooling emulsion of cold continuous rolling unit Download PDFInfo
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- CN220387484U CN220387484U CN202321925772.7U CN202321925772U CN220387484U CN 220387484 U CN220387484 U CN 220387484U CN 202321925772 U CN202321925772 U CN 202321925772U CN 220387484 U CN220387484 U CN 220387484U
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- emulsion
- collecting tank
- overflow
- breather pipe
- pipe
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- 239000000839 emulsion Substances 0.000 title claims abstract description 133
- 238000005096 rolling process Methods 0.000 title claims abstract description 28
- 238000001816 cooling Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000004495 emulsifiable concentrate Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Metal Rolling (AREA)
Abstract
The utility model relates to a device for preventing overflow of cooling emulsion of a cold continuous rolling mill, which comprises an emulsion collecting tank arranged below the cold continuous rolling mill, wherein the emulsion collecting tank is connected with a sealed lifting station emulsion collecting tank through an emulsion return pipe, a waste liquid collecting tank is arranged on the outer side of the lifting station emulsion collecting tank, an emulsion injection pipeline is connected between the lifting station emulsion collecting tank and the cold continuous rolling mill, the top of the lifting station emulsion collecting tank is connected with a drainage breather pipe, the outlet of the drainage breather pipe is arranged above the emulsion collecting tank, and the outlet of the drainage breather pipe can horizontally rotate to the upper part of the waste liquid collecting tank. The utility model realizes the balance of internal and external pressure difference after the emulsion collecting box is sealed by the drainage breather pipe, and gives consideration to the overflow effect when the liquid level is ultrahigh. Avoiding emulsion overflow accident of the emulsion lifting station box and prolonging the service life of the emulsion. The emulsion overflow loss and the shutdown waste loss caused by shutdown are reduced, the smooth production is ensured, and the production cost is reduced.
Description
Technical Field
The utility model relates to the field of cold continuous rolling, in particular to a device for preventing overflow of cooling emulsion of a cold continuous rolling unit.
Background
In the emulsion circulating system of the cold continuous rolling unit, the liquid level control of the emulsion collecting box of the lifting station is generally realized by using two pneumatic butterfly valves with DN350 PN10 of a pneumatic actuator. When the pneumatic butterfly valve is closed, the emulsion is pumped to the flat bed by the pump from the lifting station, and the liquid level is lowered; when the pneumatic butterfly valve is opened by receiving an electrical signal, a part of emulsion at the outlet of the main pump of the emulsion lifting station is returned to the recovery box through the bypass loop, the emulsion circulates in the lifting station, and the liquid level rises gradually. Therefore, when the main valve of the pneumatic butterfly valve cannot be completely closed or the motor of the lifting station is stopped due to various fault reasons, the collecting box of the lifting station cannot send emulsion out, so that the emulsion liquid level of the lifting station is overfilled and overflows to submerge the lifting motor, and the normal work of the lifting station is influenced. The influence of each shutdown on the production process is the greatest, a large amount of emulsion is discharged, the vehicle is turned again, desalted water and emulsifiable concentrate are needed to be supplemented, the temperature, concentration and pH value of the emulsion are also adjusted, and if the emulsion is improperly adjusted, the phenomena of rust, blackening and the like are easily generated on the surface of the steel plate.
In summary, the downtime is long when an accident happens, a large amount of cream funds are consumed for reconfiguring the emulsion, the economic loss is large, and the device for automatically preventing the emulsion from overflowing is necessary for the emulsion circulation system to avoid the accident, reduce the accident influence and shorten the accident handling time.
Prior published patent CN202220235990.7, a finishing mill emulsion circulation mechanism, comprises: the device comprises an emulsion box, a first pipeline, a first filter box, a second filter box, an adsorption part, a scraping part, a second pipeline and a collecting box, wherein the first pipeline is communicated with the emulsion box and the second filter box; the first filter box is connected in series with the first pipeline, and a filter screen is arranged in the first filter box; the adsorption part comprises a rotating piece which is rotatably arranged in the first filter box, a plurality of magnet bars are arranged at the bottom of the rotating piece, a driven gear is arranged on the rotating piece, the driven gear is meshed with a driving gear, and the driving gear is connected with a motor in a transmission way; the scraping part is used for scraping off scraps adsorbed on the magnet rod; and one end of the second pipeline is communicated with the second filter box, and the other end of the second pipeline is arranged at the bottom of the collecting box. The device comprises an emulsion box, a first pipeline, a first filter box, a second filter box, an adsorption part, a scraping part, a second pipeline and a collecting box, wherein the first pipeline is communicated with the emulsion box and the second filter box; the first filter box is connected in series on the first pipeline, and a filter screen is arranged in the first filter box; the adsorption part comprises a rotating piece which is rotatably arranged in the first filter box, a plurality of magnet bars are arranged at the bottom of the rotating piece, a driven gear is arranged on the rotating piece, a driving gear is meshed with the driven gear, and the driving gear is connected with a motor in a transmission way; the scraping part is used for scraping the scraps adsorbed on the magnet rod; one end of the second pipeline is communicated with the second filter box, and the other end of the second pipeline is arranged at the bottom of the collecting box. The utility model realizes the double filtering functions of adsorption filtration and filter screen filtration through the magnet rod, and improves the power effect of the chips in the emulsion. The rolling emulsion circulation mechanism designed by the patent is mainly suitable for filtering impurities such as scraps in an emulsion system of a rolling mill, and has no function of preventing emulsion overflow in the emulsion system.
The prior published patent CN201910877764.1, a control method for preventing overflow of an emulsion oil return tank of a continuous rolling mill, comprises the following contents: (1) the liquid level meter adopts a VEGFLEX 83 bar type radar liquid level meter; (2) The top of the oil return box is provided with a fixed box, the fixed box is internally provided with a liquid level control device, the liquid level control device consists of a buoy, a proximity switch and a sensing head, the buoy is welded at one end of a connecting rod, the other end of the connecting rod is hinged with a spring plate, the spring plate is connected with the sensing head, and the proximity switch is fixedly arranged on a mounting frame; the distance between the sensing head and the proximity switch is at least 1.5cm, and the proximity switch is connected with the PLC through a wire; (3) Setting the induction distance of the proximity switch to be 1.5cm in a control program, and switching off signals exceeding 1.5 cm; when the distance between the sensing head and the proximity switch is 1.5cm, the proximity switch feeds back a signal to the PLC, and the PLC controls an electric control valve arranged on a pipeline of the emulsion oil return system to be opened, so that the opening degree of the electric control valve is increased, emulsion in the oil return tank is rapidly discharged, and overflow is prevented; (4) PID parameters of the proportional integral controller of the electric control valve are respectively as follows: p=10%, i=5s, d=0s.
The device and the method for preventing the overflow of the emulsion return tank of the continuous rolling mill are designed, and are suitable for a cold continuous rolling mill unit, but the designed device is characterized in that a series of electric control elements are arranged and the emulsion liquid level is controlled through a PLC system, the environment where the emulsion circulation system of the rolling mill is positioned is generally a high-temperature, high-humidity and high-acidity environment, the service life and the detection precision of the detection elements and the electric control elements under the working condition are greatly reduced, and the detection elements and the electric control elements are required to be continuously maintained and adjusted, so that the maintenance burden is heavy and are not suitable for part of units with severe working conditions. In summary, a simple and reliable device for automatically preventing emulsion from overflowing without an electric control system is designed for the emulsion circulation system, so that the purposes of effectively preventing emulsion from overflowing, reducing emulsion loss and reducing shutdown waste products are achieved.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a device for preventing the overflow of the cooling emulsion of a cold continuous rolling unit, which is used for controlling the circulation stability of an emulsion system and ensuring that the emulsion in an emulsion lifting station box cannot overflow to cause shutdown.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a prevent device that cold tandem mill unit emulsion overflows, including setting up the emulsion collecting vat in cold tandem mill below, the emulsion collecting vat passes through the emulsion back flow and is connected with sealed promotion station emulsion collecting vat, the outside of promotion station emulsion collecting vat is equipped with the waste liquid collecting vat, promote and connect emulsion injection pipeline between station emulsion collecting vat and the cold tandem mill, the drainage breather pipe is connected at the top of promotion station emulsion collecting vat, the export setting of drainage breather pipe is in the top of emulsion collecting vat, the export of drainage breather pipe can the horizontal rotation to the top of waste liquid collecting vat.
The drainage breather pipe comprises an upper pipe and a lower pipe, wherein the lower pipe is vertically arranged, the lower pipe is movably connected with the upper pipe through a universal adapter, and the upper pipe is horizontally arranged.
The drainage breather pipe is a metal hose.
The top of the drainage breather pipe is 150-200mm higher than the upper edge of the emulsion collecting tank.
The emulsion collecting tank is open above.
The upper part of the waste liquid collecting tank is open.
The bottom of the waste liquid collecting tank is provided with a liquid outlet.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model realizes the balance of internal and external pressure difference after the emulsion collecting box is sealed by the drainage breather pipe, and gives consideration to the overflow effect when the liquid level is ultrahigh. Avoiding emulsion overflow accident of the emulsion lifting station box and prolonging the service life of the emulsion. The emulsion overflow loss and the shutdown waste loss caused by shutdown are reduced, the smooth production is ensured, and the production cost is reduced.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: the device comprises a cold continuous rolling mill 1, an emulsion collecting tank 2, an emulsion return pipe 3, a lifting station emulsion collecting box 4, a drainage breather pipe 5, a lower pipe 5.1, an upper pipe 5.2, a universal adapter 5.3, an emulsion injection pipeline 6, a waste liquid collecting tank 7 and a liquid outlet 8.
Detailed Description
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1, a device for preventing emulsion overflow of a cold continuous rolling mill set comprises an emulsion collecting tank 2 arranged below the cold continuous rolling mill 1, wherein the emulsion collecting tank 2 is connected with a sealed lifting station emulsion collecting tank 4 through an emulsion return pipe 3, a waste liquid collecting tank 7 is arranged on the outer side of the lifting station emulsion collecting tank 4, an emulsion injection pipeline 6 is connected between the lifting station emulsion collecting tank 4 and the cold continuous rolling mill 1, a drainage breather pipe 5 is connected to the top of the lifting station emulsion collecting tank 4, the outlet end of the drainage breather pipe 5 is arranged above the emulsion collecting tank 2, and the outlet end of the drainage breather pipe 5 can horizontally rotate to the upper side of the waste liquid collecting tank 7.
The drainage breather pipe 5 comprises an upper pipe 5.2 and a lower pipe 5.1, wherein the lower pipe 5.1 is vertically arranged, the lower pipe 5.1 is movably connected with the upper pipe 5.2 through a universal adapter 5.3, and the upper pipe 5.2 is horizontally arranged.
The top of the drainage breather pipe 5 is 150-200mm higher than the upper edge of the emulsion collecting tank 2.
The emulsion collecting tank 2 is open at the upper part.
The upper part of the waste liquid collecting tank 7 is open.
The bottom of the waste liquid collecting tank 7 is provided with a liquid outlet 8.
In order to make the purposes, technical schemes and technical effects of the utility model clearer, the technical schemes in the embodiments of the utility model are clearly and completely described. The embodiments described below are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without the benefit of the teachings of this utility model, are intended to be within the scope of the utility model.
Example 1
The device for preventing emulsion overflow of the cold continuous rolling unit comprises an emulsion collecting tank 2 arranged below a cold continuous rolling machine 1, wherein the upper part of the emulsion collecting tank 2 is open. The emulsion collecting tank 2 is connected with a sealed lifting station emulsion collecting tank 4 through an emulsion return pipe 3, a waste liquid collecting tank 7 is arranged on the outer side of the lifting station emulsion collecting tank 4, and the upper side of the waste liquid collecting tank 7 is open. The bottom of the waste liquid collecting tank 7 is provided with a liquid outlet 8.
The emulsion injection pipeline 6 is connected between the lifting station emulsion collecting box 4 and the cold continuous rolling mill 1, an injection pump is arranged on the emulsion injection pipeline 6, the top of the lifting station emulsion collecting box 4 is connected with the drainage breather pipe 5, the outlet end of the drainage breather pipe 5 is arranged above the emulsion collecting tank 2, and the outlet end of the drainage breather pipe 5 can horizontally rotate to the upper side of the waste liquid collecting tank 7. The drainage breather pipe 5 comprises an upper pipe 5.2 and a lower pipe 5.1, wherein the lower pipe 5.1 is vertically arranged, the lower pipe 5.1 is movably connected with the upper pipe 5.2 through a universal adapter 5.3, and the upper pipe 5.2 is horizontally arranged. The top of the drainage breather pipe 5 is 160mm higher than the upper edge of the emulsion collecting tank 2.
Example 2
The device for preventing emulsion overflow of the cold continuous rolling unit comprises an emulsion collecting tank 2 arranged below a cold continuous rolling machine 1, wherein the upper part of the emulsion collecting tank 2 is open.
The emulsion collecting tank 2 is connected with a sealed lifting station emulsion collecting tank 4 through an emulsion return pipe 3, a waste liquid collecting tank 7 is arranged on the outer side of the lifting station emulsion collecting tank 4, and the upper side of the waste liquid collecting tank 7 is open. The bottom of the waste liquid collecting tank 7 is provided with a liquid outlet 8.
The emulsion injection pipeline 6 is connected between the lifting station emulsion collecting box 4 and the cold continuous rolling mill 1, an injection pump is arranged on the emulsion injection pipeline 6, the top of the lifting station emulsion collecting box 4 is connected with the drainage breather pipe 5, the outlet end of the drainage breather pipe 5 is arranged above the emulsion collecting tank 2, and the outlet end of the drainage breather pipe 5 can horizontally rotate to the upper side of the waste liquid collecting tank 7. The drainage breather pipe 5 is a metal hose. The top of the drainage breather pipe 5 is 180mm higher than the upper edge of the emulsion collecting tank 2.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a device for preventing cold tandem mill cooling emulsion excessive, a serial communication port, including setting up the emulsion collecting vat in cold tandem mill below, the emulsion collecting vat passes through the emulsion back flow and is connected with sealed promotion station emulsion collecting box, the outside of promotion station emulsion collecting box is equipped with the waste liquid collecting vat, be connected emulsion injection pipeline between promotion station emulsion collecting box and the cold tandem mill, the drainage breather pipe is connected at the top of promotion station emulsion collecting box, the export setting of drainage breather pipe is in the top of emulsion collecting vat, the export of drainage breather pipe can the horizontal rotation to the top of waste liquid collecting vat.
2. The device for preventing overflow of cooling emulsion of cold continuous rolling mill set according to claim 1, wherein the drainage breather pipe comprises an upper pipe and a lower pipe, the lower pipe is vertically arranged, the lower pipe is movably connected with the upper pipe through a universal adapter, and the upper pipe is horizontally arranged.
3. The device for preventing the overflow of the cooling emulsion of the cold continuous rolling mill set according to claim 1, wherein the drainage breather pipe is a metal hose.
4. The device for preventing the overflow of the cooling emulsion of the cold continuous rolling mill set according to claim 1, wherein the top of the drainage breather pipe is 150-200mm higher than the upper edge of the emulsion collecting tank.
5. The device for preventing overflow of cooling emulsion of cold tandem mill according to claim 1, wherein the emulsion collecting tank is opened at the upper side.
6. The device for preventing overflow of cooling emulsion of cold tandem mill according to claim 1, wherein the waste liquid collecting tank is opened at the upper side.
7. The device for preventing overflow of cooling emulsion of cold tandem mill according to claim 1, wherein the bottom of the waste liquid collecting tank is provided with a liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321925772.7U CN220387484U (en) | 2023-07-21 | 2023-07-21 | Device for preventing overflow of cooling emulsion of cold continuous rolling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321925772.7U CN220387484U (en) | 2023-07-21 | 2023-07-21 | Device for preventing overflow of cooling emulsion of cold continuous rolling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220387484U true CN220387484U (en) | 2024-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321925772.7U Active CN220387484U (en) | 2023-07-21 | 2023-07-21 | Device for preventing overflow of cooling emulsion of cold continuous rolling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220387484U (en) |
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2023
- 2023-07-21 CN CN202321925772.7U patent/CN220387484U/en active Active
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