CN209753669U - Cooling water supply system for hot-rolled strip steel - Google Patents
Cooling water supply system for hot-rolled strip steel Download PDFInfo
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- CN209753669U CN209753669U CN201920405408.5U CN201920405408U CN209753669U CN 209753669 U CN209753669 U CN 209753669U CN 201920405408 U CN201920405408 U CN 201920405408U CN 209753669 U CN209753669 U CN 209753669U
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Abstract
The utility model discloses a hot-rolled strip steel cooling water supply system, which comprises a layer cold water pump inlet pipe, a layer cold water supply pump, a layer cold equipment water supply pipe, a roller way cooling water booster pump and a roller way cooling water supply pipe, wherein the outlet of the layer cold water pump inlet pipe is communicated with the inlet of the layer cold water supply pump, the outlet of the layer cold water supply pump is respectively communicated with the inlet of the roller way cooling water booster pump and the inlet of the layer cold equipment water supply pipe, and the outlet of the layer cold equipment water supply pipe is communicated with the layer cold equipment; and the outlet of the roller way cooling water booster pump is communicated with a roller way cooling water supply pipe. The utility model has the advantages that: a water inlet pipe of a roller cooling booster pump is led out from an outlet water pipe of the layer cooling water supply pump, and the layer cooling water is pressurized to about 0.4Mpa by the roller cooling water booster pump and then is supplied to a roller body of the layer cooling roller way for cooling; the process has the advantages that the water for cooling the layer cooling equipment and the layer cooling roller way is discharged into the layer cooling slag channel, the stability of the whole cooling system is improved by the process of unified water supply and unified water discharge, and the operation and maintenance in the later period of production are facilitated.
Description
Technical Field
The utility model discloses belted steel production technical field, concretely relates to hot rolling belted steel cooling water supply system.
Background
In hot strip rolling projects, the cooling system greatly affects the quality of the produced strip product. At present, a laminar cooling system is configured on a hot-rolled strip steel production line, and the performance of strip steel is controlled and improved by controlling cooling after rolling.
At present, laminar flow cooling systems are all provided with a single water supply and drainage system. The laminar cooling plant is provided with a separate water drainage system, but the water supply system is supplied by both the laminar cooling water treatment facility and the rolling mill water treatment facility. The pressure requirement of the laminar cooling water is 0.08MPa, the water consumption is large, and the laminar cooling water is supplied by a laminar cooling water treatment facility; the pressure of the cooling water of the layer cooling roller way is 0.4MPa, and the pressure of the low-pressure water system of the rolling mill is also 0.4MPa, so the water for the layer cooling roller way is supplied by a water treatment facility of the rolling mill. Thus, although the management of the water pump is convenient and the cost is saved once, the following problems are caused to the future production:
(1) Unbalance of the water system. 0.4MPa cooling water from a rolling mill water treatment facility is supplied to a roller way of a layer cooling area all the time, and the cooling water is discharged into a layer cooling slag ditch, so that water is required to be supplied to the rolling mill water treatment facility all the time in production, and the layer cooling water treatment facility is in a full-load state all the time, and even needs to be pumped and discharged regularly.
(2) The cold water quality of the polluted layer has adverse effect on the product performance of the steel. The rolling mill zone is very heavy with oil and mud, and the laminar cooling zone is better in environmental conditions, so that the laminar cooling water is basically free of oil and mud. Although the cooling water system of the rolling mill carries out oil removal and mud removal, the quality of the cooling water phase of the rolling mill is much poorer than that of the laminar cooling water. The cooling water of the rolling mill containing oil and mud enters the layer cooling system, which destroys the water quality of the layer cooling system and further exerts adverse effect on steel products.
Therefore, there is a need for improvements in the prior art.
Disclosure of Invention
An object of the utility model is to provide a hot rolling belted steel cooling water supply system that the operation is stable and can improve laminar cooling system quality of water to prior art not enough.
The utility model adopts the technical proposal that: a hot-rolled strip steel cooling water supply system comprises a layer cold water pump water inlet pipe, a layer cold water supply pump, a layer cold equipment water supply pipe, a roller way cooling water booster pump and a roller way cooling water supply pipe, wherein an outlet of the layer cold water pump water inlet pipe is communicated with an inlet of the layer cold water supply pump, an outlet of the layer cold water supply pump is respectively communicated with an inlet of the roller way cooling water booster pump and an inlet of the layer cold equipment water supply pipe, and an outlet of the layer cold equipment water supply pipe is communicated with layer cold equipment; and the outlet of the roller way cooling water booster pump is communicated with a roller way cooling water supply pipe.
According to the scheme, a layer cooling slag ditch is laid below the layer cooling equipment, the layer cooling slag channel is communicated with the inlet of the layer cooling water treatment facility through a water return pipe, and the outlet of the layer cooling water treatment facility is communicated with the inlet pipe of the layer cooling water pump.
According to the scheme, the outlet of the laminar cooling water supply pump is provided with a laminar cooling water pressure gauge.
According to the scheme, the roller way cooling water pressure gauge is arranged at the outlet of the roller way cooling water booster pump.
According to the scheme, the outlets of the inlet pipes of the laminar cooling water pumps are respectively connected with a plurality of layers of cooling water supply pumps, and the outlets of the laminar cooling water supply pumps are respectively communicated with the inlets of the outlet water pipes of the laminar cooling water supply pumps.
According to the scheme, the outlets of the water inlet pipes of the roller cooling booster pumps are respectively connected with a plurality of roller cooling water booster pumps, and the outlets of the roller cooling water booster pumps are uniformly communicated with the inlets of the roller cooling water supply pipes.
The utility model has the advantages that: the utility model leads out a roller cooling booster pump water inlet pipe on the outlet water pipe of the layer cooling water supply pump, and after the layer cooling water supply is pressurized to about 0.4Mpa by the roller cooling water booster pump, the layer cooling water supply pump is used for cooling the roller body of the layer cooling roller; the process of uniformly supplying and draining water improves the stability of the whole cooling system and is convenient for operation and maintenance in the later production period; compare with direct cooling water that is provided by the rolling mill, the utility model discloses improve the quality of water of layer cold roller way cooling water, guaranteed the quality of steel production.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1. a water inlet pipe of a laminar cooling water pump; 2. a laminar cooling water supply pump; 3. a laminar cooling water pressure gauge; 4. a roller bed cooling water booster pump; 5. a roller way cooling water pressure gauge; 6. an outlet water pipe of the laminar cooling water supply pump; 7. a water inlet pipe of the roller way cooling booster pump; 8. a water supply pipe for a layer cooling device; a roller bed cooling water supply pipe; 10. a laminar cooling device; 11. a layer cooling roller way; 12. a rolling mill; 13. a layer cooling slag channel; 14. a rolling mill slag channel; a water return pipe; 16. and (4) a laminar cooling water treatment facility.
Detailed Description
for a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, the cooling water supply system for hot-rolled strip steel comprises a layer cold water pump water inlet pipe 1, a layer cold water supply pump 2, a layer cold water supply pump outlet water pipe 6, a layer cold equipment water supply pipe 8, a roller way cooling booster pump water inlet pipe 7, a roller way cooling water booster pump 4 and a roller way cooling water supply pipe 9, wherein an outlet of the layer cold water pump water inlet pipe 1 is communicated with an inlet of the layer cold water supply pump 2, an outlet of the layer cold water supply pump 2 is communicated with an inlet of the layer cold water supply pump outlet water pipe 6, and an outlet of the layer cold water supply pump outlet water pipe 6 is respectively communicated with inlets of the roller way cooling booster pump water inlet pipe 7; the outlet of the water supply pipe 8 of the laminar cooling equipment is communicated with the laminar cooling equipment 10; the outlet of the roller way cooling booster pump water inlet pipe 7 is communicated with the inlet of the roller way cooling water booster pump 4, and the outlet of the roller way cooling water booster pump 4 is communicated with the roller way cooling water supply pipe 9; a layer cold slag ditch 13 is arranged below the layer cold equipment 10 and the layer cold roller way 11, the layer cold slag ditch 13 is communicated with the inlet of a layer cold water treatment facility 16 through a water return pipe 15, and the outlet of the layer cold water treatment facility 16 is communicated with a layer cold water pump water inlet pipe 1.
Preferably, an outlet of the laminar cooling water supply pump 2 is provided with a laminar cooling water pressure gauge 3; and a roller way cooling water pressure gauge 5 is arranged at the outlet of the roller way cooling water booster pump 4.
Preferably, in order to further ensure the stable operation of the whole cooling system, the outlet of the inlet pipe 1 of the laminar cooling water pump is respectively connected with a plurality of laminar cooling water supply pumps 2, and each laminar cooling water supply pump 2 is respectively provided with a laminar cooling water pressure gauge 3; the outlets of the layer cold water supply pumps 2 are respectively communicated with the inlets of outlet water pipes 6 of the layer cold water supply pumps. In this embodiment, three sets of parallel-connected laminar-cooling water supply pumps 2 are provided.
Preferably, the outlets of the water inlet pipes 7 of the roller cooling booster pumps are respectively connected with a plurality of roller cooling water booster pumps 4, and the outlets of the roller cooling water booster pumps 4 are respectively communicated with the inlets of the roller cooling water supply pipes 9; each roller way cooling water booster pump 4 is respectively provided with a roller way cooling water pressure gauge 5. In this embodiment, two sets of parallel roller bed cooling water booster pumps 4 are provided.
In the utility model, an outlet pipe 6 of a layer cooling water supply pump is communicated with two branches of a water inlet pipe 7 of a roller cooling booster pump and a water supply pipe 8 of layer cooling equipment, wherein the water supply pipe 8 of the layer cooling equipment is directly connected with the layer cooling equipment 10, and the pressure of cooling water of the layer cooling equipment 10 is about 0.08 Mpa; after cooling water in the water inlet pipe 7 of the roller cooling booster pump is boosted by the roller cooling water booster pump 4, the pressure of the cooling water in the roller cooling water supply pipe 9 is 0.4Mpa, and then water is supplied to the layer cooling roller 11 for cooling.
The utility model discloses a theory of operation does: when the production line is produced, the layer cold water supply pump 2 is started, and after the pressure of cooling water in the outlet water pipe 6 of the layer cold water supply pump is about 0.08Mpa, water is supplied to the inlet pipe 7 of the roller cooling booster pump and the water supply pipe 8 of the layer cold equipment. The water supply pipe 8 of the laminar cooling equipment is directly connected with the laminar cooling equipment 10, and the pneumatic valve on the water supply pipe 8 of the laminar cooling equipment is opened and closed through a computer command, so that the laminar cooling equipment 10 sprays water downwards or closes the water spraying. The cooling water sprayed by the laminar cooling device 10 directly flows into the laminar cooling slag channel 13 below the laminar cooling device 10. Cooling water in the water inlet pipe 7 of the roller cooling booster pump is pressurized to 0.4Mpa by the roller cooling water booster pump 4, and then water is supplied to the layer cooling roller way 11 for cooling. The cooling water of the layer cooling roller way 11 cools the roller way and then flows into the layer cooling slag channel 13. Thus, the cooling water of the layer cooling equipment 10 and the layer cooling roller way 11 flows into the layer cooling slag channel 13, enters the layer cooling water treatment facility 16 through the water return pipe 15 for filtering and cooling, and enters the layer cooling water pump water inlet pipe 1 again to complete a use cycle. The cooling water of the rolling mill 12 is cooled and then directly discharged into a rolling mill slag runner 14 after cooling water of the rolling mill 12 is cooled, and then enters a water treatment facility of the cooling water of the rolling mill 12 for post treatment.
It should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced with equivalents, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A hot-rolled strip steel cooling water supply system is characterized by comprising a layer cold water pump water inlet pipe, a layer cold water supply pump, a layer cold equipment water supply pipe, a roller way cooling water booster pump and a roller way cooling water supply pipe, wherein an outlet of the layer cold water pump water inlet pipe is communicated with an inlet of the layer cold water supply pump, an outlet of the layer cold water supply pump is respectively communicated with an inlet of the roller way cooling water booster pump and an inlet of the layer cold equipment water supply pipe, and an outlet of the layer cold equipment water supply pipe is communicated with the layer cold equipment; and the outlet of the roller way cooling water booster pump is communicated with a roller way cooling water supply pipe.
2. The hot-rolled strip steel cooling water supply system as claimed in claim 1, wherein a layer cooling slag groove is laid below the layer cooling equipment, the layer cooling slag groove is communicated with an inlet of the layer cooling water treatment facility through a water return pipe, and an outlet of the layer cooling water treatment facility is communicated with a water inlet pipe of a layer cooling water pump.
3. The hot rolled strip cooling water supply system as claimed in claim 1, wherein a laminar cooling water pressure gauge is provided at an outlet of the laminar cooling water supply pump.
4. The hot rolled strip steel cooling water supply system as claimed in claim 1, wherein the outlet of the roller table cooling water booster pump is provided with a roller table cooling water pressure gauge.
5. The hot rolled strip steel cooling water supply system of claim 1, wherein outlets of inlet pipes of the laminar cooling water pumps are respectively connected with a plurality of laminar cooling water supply pumps, and outlets of the cold water supply pumps are respectively communicated with inlets of outlet pipes of the laminar cooling water supply pumps.
6. The hot rolled strip steel cooling water supply system as claimed in claim 1, wherein outlets of water inlet pipes of the roller cooling booster pumps are respectively connected to a plurality of roller cooling water booster pumps, and outlets of the roller cooling water booster pumps are respectively communicated with inlets of the roller cooling water supply pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920405408.5U CN209753669U (en) | 2019-03-27 | 2019-03-27 | Cooling water supply system for hot-rolled strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920405408.5U CN209753669U (en) | 2019-03-27 | 2019-03-27 | Cooling water supply system for hot-rolled strip steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209753669U true CN209753669U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920405408.5U Active CN209753669U (en) | 2019-03-27 | 2019-03-27 | Cooling water supply system for hot-rolled strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209753669U (en) |
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2019
- 2019-03-27 CN CN201920405408.5U patent/CN209753669U/en active Active
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