CN217173838U - Finishing unit for hot-dip galvanized sheet - Google Patents
Finishing unit for hot-dip galvanized sheet Download PDFInfo
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- CN217173838U CN217173838U CN202122962545.9U CN202122962545U CN217173838U CN 217173838 U CN217173838 U CN 217173838U CN 202122962545 U CN202122962545 U CN 202122962545U CN 217173838 U CN217173838 U CN 217173838U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to a hot galvanized sheet production technical field especially relates to a hot galvanized sheet finishing unit, and it includes the finishing machine, and the finishing machine includes frame, high-pressure cleaning system, wet finishing system and wastewater collection groove, and the wastewater collection groove sets up in the below of frame, still includes the effluent treatment system of recycling, and effluent treatment system of recycling one end is connected with the wastewater collection groove, and the effluent treatment system of recycling other end is connected with high-pressure cleaning system and wet finishing system. Waste water generated by the high-pressure cleaning system and the wet finishing system is collected in a waste water collecting tank, then is conveyed to a waste water treatment recycling system for waste water treatment, and the treated water is conveyed to the high-pressure cleaning system and the wet finishing system to become water for use, so that the water of the hot galvanized plate finishing unit is recycled, the purposes of energy conservation and environmental protection are achieved, and the use cost of the hot galvanized plate finishing unit is effectively reduced.
Description
Technical Field
The utility model relates to a hot-dip galvanized sheet production technical field especially relates to a hot-dip galvanized sheet finishing unit.
Background
In a hot galvanized plate finishing unit, a high-pressure cleaning system and a wet finishing system of the finishing machine need to use a large amount of water in the using process, and a large amount of waste water can be generated. At present, the waste water that high pressure cleaning system, wet finishing system produced is collected and is set up in the collecting vat under the finishing machine frame, then carries waste water in the collecting vat to sewage treatment plant and handles, and the waste water treatment cost is higher to hot galvanized sheet finishing unit's use cost has been increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a hot dip galvanized sheet finishing unit that use cost is lower.
The utility model provides a technical scheme that its technical problem adopted is: the hot galvanized sheet finishing unit comprises a finishing machine body, wherein the finishing machine body comprises a rack, a high-pressure cleaning system, a wet finishing system and a wastewater collecting tank, the wastewater collecting tank is arranged below the rack, the hot galvanized sheet finishing unit further comprises a wastewater treatment recycling system, one end of the wastewater treatment recycling system is connected with the wastewater collecting tank, and the other end of the wastewater treatment recycling system is connected with the high-pressure cleaning system and the wet finishing system.
Further, the wastewater treatment and recycling system comprises a discharge pipe of the finishing machine, a collecting water tank, a water supply device, a self-cleaning coarse filtering device and a fine filtering device;
the wastewater collection tank is connected with the collection water tank through a blowdown pipe of the finishing machine, the collection water tank is connected with the water supply device through a first water conveying pipeline, the water supply device is connected with the self-cleaning coarse filtering device through a second water conveying pipeline, the self-cleaning coarse filtering device is connected with the fine filtering device through a third water conveying pipeline, the fine filtering device is connected with the high-pressure cleaning system through a fourth water conveying pipeline and a fifth water conveying pipeline, and the fine filtering device is connected with the wet finishing system through a fourth water conveying pipeline and a sixth water conveying pipeline.
Further, the wastewater collection tank is located at an elevation higher than that of the collection water tank.
The water collecting tank comprises a tank body, wherein a vertical overflow partition plate is arranged in the tank body, an overflow groove is formed in the left side of the vertical overflow partition plate, and a liquid storage groove is formed in the right side of the vertical overflow partition plate;
the drain pipe of the finishing machine is connected with the overflow tank, and the second water pipeline is connected with the liquid storage tank.
Furthermore, the bottoms of the overflow groove and the liquid storage groove are both provided with a sewage discharge outlet and a discharge outlet, the discharge outlet is connected with a sewage discharge ditch through a drainage pipeline, and the drainage pipeline is provided with a first control valve;
the middle lower layer of the overflow groove is provided with a baffle;
the upper side of the liquid storage tank is provided with an overflow port, and the overflow port is connected with the sewage drainage ditch through an overflow pipeline;
a liquid level meter is arranged in the liquid storage tank, and an observation port is arranged at the top of the box body.
Still include emergent discharge pipe, emergent discharge pipe one end is connected with the burnishing machine blow off pipe, and the other end is connected with the blowdown ditch, is provided with the second control flap on the emergent discharge pipe.
Further, the number of the water supply devices is two, and the two water supply devices are arranged in parallel.
Furthermore, the number of the self-cleaning coarse filtering devices is two, and the two self-cleaning coarse filtering devices are arranged in parallel.
Furthermore, the number of the fine filtering devices is two, and the two fine filtering devices are arranged in parallel.
The device further comprises a pressure detection pipeline, one end of the pressure detection pipeline is connected with the third water pipeline, the other end of the pressure detection pipeline is connected with the collection water tank, and a back pressure valve and a pressure sensor are arranged on the pressure detection pipeline;
and a pressure transmitter is arranged on the fourth water conveying pipeline.
Further comprises a control system, wherein the high-pressure cleaning system, the wet finishing system and the wastewater treatment and recycling system are all electrically connected with the control system.
The utility model has the advantages that: through being provided with waste water treatment system of recycling, waste water treatment system one end of recycling is connected with the wastewater collection groove, and the waste water treatment system of recycling other end is connected with high-pressure cleaning system and wet finishing system. Waste water generated by the high-pressure cleaning system and the wet finishing system is collected in a waste water collecting tank, then is conveyed to a waste water treatment recycling system for waste water treatment, and the treated water is conveyed to the high-pressure cleaning system and the wet finishing system to become water for use, so that the water of the hot galvanized plate finishing unit is recycled, the purposes of energy conservation and environmental protection are achieved, and the use cost of the hot galvanized plate finishing unit is effectively reduced.
Drawings
FIG. 1 is a schematic diagram of a wastewater treatment and reuse system;
the label is: the automatic cleaning device comprises a light complete machine sewage draining pipe 1, a collecting water tank 2, a water supply device 3, a self-cleaning coarse filtering device 4, a fine filtering device 5, a fourth water conveying pipeline 6, a fifth water conveying pipeline 7, a sixth water conveying pipeline 8, a vertical overflow partition plate 9, an overflow groove 10, a liquid storage groove 11, a sewage draining outlet 12, a water draining pipeline 13, a sewage draining ditch 14, a first control valve 15, a baffle plate 16, an overflow pipeline 17, a liquid level meter 18, an emergency draining pipeline 19, a second control valve 20, a pressure detection pipeline 21, a back pressure valve 22, a pressure sensor 23 and a pressure transmitter 24.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
The utility model discloses hot galvanized sheet finishing unit, including the finishing machine, the finishing machine includes frame, high-pressure cleaning system, wet finishing system and wastewater collection groove, and the wastewater collection groove sets up in the below of frame, still includes the effluent treatment system of recycling, and effluent treatment system one end of recycling is connected with the wastewater collection groove, and the effluent treatment system of recycling other end is connected with high-pressure cleaning system and wet finishing system.
Waste water generated by the high-pressure cleaning system and the wet finishing system is collected in a waste water collecting tank, then is conveyed to a waste water treatment recycling system for waste water treatment, and the treated water is conveyed to the high-pressure cleaning system and the wet finishing system to become water for use, so that the water of the hot galvanized plate finishing unit is recycled, the purposes of energy conservation and environmental protection are achieved, and the use cost of the hot galvanized plate finishing unit is effectively reduced.
Specifically, the effect of system is recycled in waste water treatment handles waste water, realizes recycling of waste water, the utility model discloses a structure that waste water treatment system is recycled is preferred does: as shown in fig. 1, the wastewater treatment and recycling system comprises a finisher blow-off pipe 1, a collection water tank 2, a water supply device 3, a self-cleaning coarse filtering device 4 and a fine filtering device 5, wherein the wastewater collection tank is connected with the collection water tank 2 through the finisher blow-off pipe 1, the collection water tank 2 is connected with the water supply device 3 through a first water pipe, the water supply device 3 is connected with the self-cleaning coarse filtering device 4 through a second water pipe, the self-cleaning coarse filtering device 4 is connected with the fine filtering device 5 through a third water pipe, the fine filtering device 5 is connected with a high-pressure cleaning system through a fourth water pipe 6 and a fifth water pipe 7, and the fine filtering device 5 is connected with the wet finishing system through the fourth water pipe 6 and the sixth water pipe 8. The work flow of the wastewater treatment and recycling system is as follows: waste water generated by a high-pressure cleaning system and a wet finishing system is firstly collected in a waste water collecting tank, the waste water in the waste water collecting tank is conveyed to a collecting water tank 2 along a discharging pipe 1 of a finishing machine, under the power action of a water supply device 3, the waste water in the collecting water tank 2 is conveyed to a self-cleaning coarse filtering device 4 along a first water pipeline and a second water pipeline for treatment, large particle impurities and oil sludge in the waste water are intercepted, the waste water treated by the self-cleaning coarse filtering device 4 is conveyed to a fine filtering device 5 through a third water pipeline, the fine filtering device 5 performs final filtering to reach the final use requirement, the water reaching the use requirement is conveyed to the wet finishing system through a fourth water pipeline 6 and a sixth water pipeline 8 to be used as the water, the water reaching the use requirement is conveyed to the high-pressure cleaning system through the fourth water pipeline 6 and a fifth water pipeline 7 to be used as the water for use, thereby realizing the water recycling of the finishing unit of the hot-dip galvanized sheet and achieving the purposes of energy conservation and environmental protection.
In order to facilitate conveying the waste water in the waste water collecting tank to the collection water tank 2 along the finishing machine blow-off pipe 1, the elevation that the waste water collecting tank is located is higher than the elevation that the collection water tank 2 is located, namely the waste water collecting tank mounting height is higher than the mounting height of collecting the water tank 2, relies on gravity to convey the waste water in the waste water collecting tank to the collection water tank 2 along the finishing machine blow-off pipe 1, and the conveying cost is also reduced by the arrangement. In order to reduce the conveying speed of certain waste water in the sewage discharge pipe 1 of the finishing machine and convey the waste water at a reasonable conveying speed, the middle part of the sewage discharge pipe 1 of the finishing machine and the connecting end of the collecting water tank 2 form an elevation angle of 5 degrees.
The collection water tank 2 mainly functions as the collection transfer of waste water, in order to improve the treatment effect of waste water, the utility model discloses a structure that collection water tank 2 is preferred is: as shown in fig. 1, the collecting water tank 2 comprises a tank body, a vertical overflow partition plate 9 is arranged in the tank body, an overflow groove 10 is arranged on the left side of the vertical overflow partition plate 9, a liquid storage groove 11 is arranged on the right side of the vertical overflow partition plate 9, the sewage discharge pipe 1 of the finishing machine is connected with the overflow groove 10, and a second water pipeline is connected with the liquid storage groove 11. The wastewater conveyed by the sewage discharge pipe 1 of the finishing machine firstly enters the overflow groove 10, then crosses the vertical overflow partition plate 9 and then enters the liquid storage groove 11, the wastewater naturally settles in the overflow groove 10, and partial particles in the wastewater are precipitated; sedimentation treatment is also performed in the reservoir 11, and a part of the particulate matters are precipitated. In order to improve the particle precipitation treatment effect of the overflow trough 10, the baffle 16 is arranged on the middle lower layer of the overflow trough 10, and the baffle 16 is arranged to convey the wastewater in the overflow trough 10 in a vortex shape. In order to realize the discharge treatment of the settled particles, the bottom parts of the overflow trough 10 and the liquid storage tank 11 are both provided with a sewage discharge outlet 12 and a discharge outlet, the discharge outlet is connected with a sewage discharge ditch 14 through a drainage pipeline 13, and the drainage pipeline 13 is provided with a first control valve 15. In order to know the amount of wastewater in the reservoir tank 11 in real time, a liquid level meter 18 is arranged in the reservoir tank 11, and a viewing port is arranged at the top of the tank body. When the amount of the waste water is more than the storage amount of the liquid storage tank 11, an overflow port is arranged on the upper side of the liquid storage tank 11 and connected with the sewage drainage ditch 14 through an overflow pipeline 17, and the redundant waste water is conveyed to the sewage drainage ditch 14 along the overflow port and the overflow pipeline 17. Further, the utility model discloses still be provided with emergent discharge tube 19, emergent discharge tube 19 one end is connected with finishing machine blow off pipe 1, and the other end is connected with blowdown ditch 14, is provided with second control flap 20 on the emergent discharge tube 19. When the amount of the wastewater is large or the wastewater treatment recycling system is overhauled, the second control valve 20 is opened, and the wastewater is conveyed into the sewage drain ditch 14 along the sewage drain pipe 1 of the finishing machine and the emergency discharge pipeline 19.
The water supply device 3 supplies power for conveying wastewater of the wastewater treatment and reuse system, the water supply device 3 comprises a water pump set and relevant configuration, the water pump set selects the working pressure of a liquid supply pump of 4.5bar, and the maximum flow of 5m 3 And h, relevant configuration is open-close ball valves, pipeline compensators, check valves, mechanical pressure gauges and other matched pipelines. The number of the water supply devices 3 is preferably two, the two water supply devices 3 are arranged in parallel, and the two water supply devices 3 are operated in a standby mode to ensure the service time of the water supply devices 3.
The self-cleaning coarse filtering device 4 comprises a coarse filtering device and a relevant configuration (control valve), the self-cleaning coarse filtering device 4 intercepts large-particle impurities and oil sludge in wastewater, the filtering device has a scrubbing function and can clean the impurities and the oil sludge attached to the filter screen, and the blowdown valve controlled by pressure difference automatically discharges and collects the intercepted solid waste, so that the maintenance intensity of the filtering device is reduced to a certain extent. The number of the self-cleaning coarse filtering devices 4 is two, the two self-cleaning coarse filtering devices 4 are arranged in parallel, and the operation modes of the two self-cleaning coarse filtering devices 4 are one for standby, so that the service time of the self-cleaning coarse filtering devices 4 is ensured.
The fine filtering device 5 comprises a fine filtering component and a phase configuration (control valve), and the fine filtering device 5 is used for fine filtering of wastewater. The number of the fine filtering devices 5 is two, the two fine filtering devices 5 are arranged in parallel, and the two self-cleaning coarse filtering devices 4 are used in a standby mode, so that the service time of the self-cleaning coarse filtering devices 4 is ensured.
In order to realize the monitoring of the operation conditions of the water supply device 3 and the self-cleaning coarse filtration device 4, the practical information is also provided with a pressure detection pipeline 21, one end of the pressure detection pipeline 21 is connected with a third water conveying pipeline, the other end of the pressure detection pipeline is connected with the water collection tank 2, a back pressure valve 22 and a pressure sensor 23 are arranged on the pressure detection pipeline 21, the pressure sensor 23 is used for detecting the section pressure, the operation of the water supply device 3 and the self-cleaning coarse filtration device 4 is monitored, and the overpressure of the system is prevented from simultaneously meeting the requirements of a subsequent treatment process and the utilization function pressure; when the detected pressure is lower than the set pressure, the water supply device 3 and the self-cleaning coarse filtering device 4 can have faults (pump leakage, shutdown or blockage of the filtering device), the HMI picture of the operation field alarms at the moment, and the operator carries out field inspection and confirmation or switches the standby function to play a role in protecting equipment. Similarly, a pressure transmitter 24 is arranged on the fourth water pipeline 6, and the pressure transmitter 24 detects the pressure of the section, so that the running condition of the fine filtering device 5 is monitored.
In order to realize automatic operation, make things convenient for the operation of whole hot galvanized sheet finishing unit, the utility model discloses still be provided with control system, high-pressure cleaning system, wet finishing system and waste water treatment recycle system all are connected with the control system electricity. The control system is a PLC and an HMI system, the use of the high-pressure cleaning system, the wet finishing system and the wastewater treatment recycling system is controlled by the PLC, and the running condition is displayed on the picture of the HMI system.
Claims (8)
1. Hot galvanized sheet finishing unit, including the finishing machine, the finishing machine includes frame, high pressure cleaning system, wet finishing system and wastewater collection groove, and the wastewater collection groove sets up in the below of frame, its characterized in that: still include waste water treatment system of recycling, waste water treatment system of recycling one end is connected with the wastewater collection groove, and waste water treatment system of recycling other end is connected with high-pressure cleaning system and wet finishing system.
2. The finishing unit for hot-galvanized sheets according to claim 1, characterized in that: the wastewater treatment and recycling system comprises a discharge pipe (1) of the finishing machine, a collecting water tank (2), a water supply device (3), a self-cleaning coarse filtering device (4) and a fine filtering device (5);
the wastewater collection tank is connected with a collection water tank (2) through a discharge pipe (1) of the finishing machine, the collection water tank (2) is connected with a water supply device (3) through a first water conveying pipeline, the water supply device (3) is connected with a self-cleaning coarse filtering device (4) through a second water conveying pipeline, the self-cleaning coarse filtering device (4) is connected with a fine filtering device (5) through a third water conveying pipeline, the fine filtering device (5) is connected with a high-pressure cleaning system through a fourth water conveying pipeline (6) and a fifth water conveying pipeline (7), and the fine filtering device (5) is connected with a wet finishing system through the fourth water conveying pipeline (6) and the sixth water conveying pipeline (8).
3. The finishing unit for hot-galvanized sheets according to claim 2, characterized in that: the elevation of the wastewater collecting tank is higher than that of the collecting water tank (2).
4. The finishing unit for hot-galvanized sheets according to claim 2, characterized in that: the water collecting tank (2) comprises a tank body, wherein a vertical overflow partition plate (9) is arranged in the tank body, an overflow groove (10) is arranged on the left side of the vertical overflow partition plate (9), and a liquid storage groove (11) is arranged on the right side of the vertical overflow partition plate (9);
the finishing machine blow-off pipe (1) is connected with the overflow groove (10), and the second water pipeline is connected with the liquid storage groove (11).
5. The finishing unit for hot-galvanized sheets according to claim 4, characterized in that: the bottom of the overflow trough (10) and the bottom of the liquid storage tank (11) are both provided with a sewage discharge outlet (12) and a discharge outlet, the discharge outlet is connected with a sewage discharge ditch (14) through a drainage pipeline (13), and the drainage pipeline (13) is provided with a first control valve (15);
a baffle (16) is arranged on the middle lower layer of the overflow trough (10);
an overflow port is arranged on the upper side of the liquid storage tank (11), and the overflow port is connected with a sewage drainage ditch (14) through an overflow pipeline (17);
a liquid level meter (18) is arranged in the liquid storage tank (11), and an observation port is arranged at the top of the box body;
the emergency exhaust pipeline (19) is further included, one end of the emergency exhaust pipeline (19) is connected with the blow-off pipe (1) of the finishing machine, the other end of the emergency exhaust pipeline is connected with the blow-off ditch (14), and a second control valve (20) is arranged on the emergency exhaust pipeline (19).
6. The finishing unit for hot-galvanized sheets according to claim 2, characterized in that: the number of the water supply devices (3) is two, and the two water supply devices (3) are arranged in parallel.
7. The finishing unit for hot-galvanized sheets according to claim 2, characterized in that: the number of the self-cleaning coarse filtering devices (4) is two, and the two self-cleaning coarse filtering devices (4) are arranged in parallel.
8. The finishing unit for hot-galvanized sheets according to claim 2, characterized in that: the number of the fine filtering devices (5) is two, and the two fine filtering devices (5) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962545.9U CN217173838U (en) | 2021-11-29 | 2021-11-29 | Finishing unit for hot-dip galvanized sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962545.9U CN217173838U (en) | 2021-11-29 | 2021-11-29 | Finishing unit for hot-dip galvanized sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217173838U true CN217173838U (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122962545.9U Active CN217173838U (en) | 2021-11-29 | 2021-11-29 | Finishing unit for hot-dip galvanized sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217173838U (en) |
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2021
- 2021-11-29 CN CN202122962545.9U patent/CN217173838U/en active Active
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