A wire rod coil surface lubricant liquid spray device waste liquid collection system

Abstract

The utility model discloses a kind of waste liquid collection systems of wire rod coil surface lubricating fluid spraying device, it is related to metallurgical field, to recycle spraying waste liquid to realize recycling to reduce cost.System includes sinking groove, waste liquid collection tank, filter sedimentation tank, waste liquid collection barrel, fine filter, circulating liquid tank connected in turn, and waste liquid is handled by five-stage filtration and sedimentation.Exhaust pipe of cylindrical outer shell flows into sinking groove, then converges into waste liquid collection tank, by pneumatic diaphragm pump to filter sedimentation tank, after shunting, clear liquid can be recycled and enter circulating liquid tank by fine filter.Circulating liquid tank is equipped with stirring device, component measuring instrument and water supply pipeline, oil supply pipeline, ensure that lubricating fluid component is stable, finally back supply three-dimensional spraying system circulation.

Description

Technical Field

[0001] This utility model relates to the field of metallurgy, specifically to a waste liquid collection system for a lubricant spray device on the surface of wire coils. Background Technology

[0002] After the wire is rolled into coils, it needs to be bundled before being delivered to the user. During the bundling process, the coils will be subjected to pressure, resulting in defects such as squeezing marks and surface scratches. These surface defects will affect the user's use.

[0003] To avoid damaging the steel coils, a lubricant can be sprayed onto their surface. Wire coil spray lubrication uses a special lubricant, which is relatively expensive. During automatic spraying, lubricant consumption depends on many factors. Often, to ensure adequate lubricant coverage on the coil, methods such as increasing the spray volume, slowing down the spray carriage speed, and using multiple sprays are employed. While these measures ensure coverage, they significantly increase lubricant consumption and waste liquid generation, thereby increasing spraying costs. Utility Model Content

[0004] This invention provides a waste liquid collection system for a lubricant spraying device on the surface of wire coils, aiming to collect waste liquid during the spraying process for recycling and reuse. The specific solution is as follows:

[0005] A waste liquid collection system for a wire coil surface lubricant spraying device includes a spraying trolley slidably mounted on a ground rail. A cylindrical outer shell is mounted on the chassis of the spraying trolley, and a three-dimensional spraying system is installed inside the cylindrical outer shell. The three-dimensional spraying system is connected to a lubricant supply device. The waste liquid collection system includes, in sequence, a sunken groove, a waste liquid collection tank, a filtration sedimentation tank, a waste liquid collection bucket, a fine filter, and a circulating liquid tank.

[0006] The bottom of the cylindrical shell is equipped with a waste liquid discharge pipe. One end of the waste liquid discharge pipe is connected to the bottom of the inner side of the cylindrical shell, and the other end is connected to a recessed groove located at the bottom of the ground rail.

[0007] The waste liquid collection tank is buried in the ground and is lower than the sunken groove. The sunken groove is connected to the waste liquid collection tank through a drip pipeline. The waste liquid collection tank is connected to the inlet of the filtration sedimentation tank through a waste liquid pumping pipe. The filtration sedimentation tank has two output ends. The first output end is connected to the waste liquid collection tank, and the second output end is connected to the circulating liquid tank through a fine filter. The circulating liquid tank is equipped with a water replenishment pipeline and an oil replenishment pipeline. The liquid outlet of the circulating liquid tank is connected to the three-dimensional spray system.

[0008] Furthermore, the circulating liquid tank is equipped with a stirring device, which includes a stirring motor, a stirring shaft, and blades. The stirring motor is installed at the top of the circulating liquid tank, the stirring shaft is located inside the circulating liquid tank, the top end of the stirring shaft passes through the circulating liquid tank and is connected to the output shaft of the stirring motor, and the bottom end of the stirring shaft is connected to blades.

[0009] Furthermore, the circulating liquid tank is equipped with a component measuring instrument and a level gauge.

[0010] Furthermore, the upper and lower sides of the filtration sedimentation tank are staggered with baffles, causing the internal liquid to flow in a meandering manner.

[0011] Furthermore, the top of the waste liquid collection tank is provided with multiple recessed liquid inlets, and the bottom plate of the liquid inlet is provided with a perforated plate with a diameter of 3mm.

[0012] A filter cartridge with a pore size of 1.5 mm is installed in the waste liquid collection tank. One end of the waste liquid pumping pipe is connected to the internal channel of the filter cartridge, and the other end is connected to the filter water bucket at the top of the filtration sedimentation tank. The filter water bucket is densely covered with holes with a pore size of 1.5 mm.

[0013] The filtration accuracy of the fine filter is 0.5-1mm.

[0014] Furthermore, there are two parallel fine filters between the second output end and the circulating liquid tank, and each fine filter is equipped with a control valve at the end near the filtration sedimentation tank.

[0015] Furthermore, a pneumatic diaphragm pump is installed on the waste liquid pumping pipe;

[0016] A solenoid valve is connected between the first output terminal and the waste liquid collection tank.

[0017] This invention utilizes a closed-loop recycling structure—a sunken groove → waste liquid collection tank → filtration sedimentation tank → fine filter → circulating liquid tank (with water / oil replenishment) → return supply three-dimensional spray system—to efficiently recover and purify the waste liquid generated during the spraying process and reuse it in the three-dimensional spray system. This avoids one-time discharge and significantly reduces the purchase of expensive lubricants and waste liquid treatment costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a waste liquid collection system for a lubricant spray device on the surface of wire coils provided by this utility model;

[0020] Figure 2 This is a schematic diagram of a spray truck;

[0021] Figure 3 A schematic diagram of a three-dimensional spray system with internal axial angles of the spray vehicle;

[0022] Figure 4 This is a schematic diagram of a waste liquid collection system;

[0023] Figure 5 This is a simplified diagram of the stirring device inside the circulating liquid tank. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0026] This invention provides a waste liquid collection system for a lubricant spray device on the surface of wire coils. (See reference...) Figure 1-3 As shown, the wire coil surface lubricant spraying device of this utility model includes a spray trolley 2 that is slidably installed on a ground rail, and a horizontal cylindrical shell 22 is installed on the chassis 21 of the spray trolley 2.

[0027] A three-dimensional spray system 3 is installed inside the cylindrical shell 22. The three-dimensional spray system 3 is fixedly installed on the spray carriage 2 and moves synchronously with the spray carriage 2. The three-dimensional spray system 3 includes a central spray pipe 31 axially arranged inside the cylindrical shell 22 and an outer spray pipe 32 circumferentially arranged on the inner wall of the cylindrical shell 22. The central spray pipe 31 is surrounded by multiple inner ring dual-flow nozzles 33, and the outer spray pipe 32 is provided with multiple outer ring dual-flow nozzles 34. The inner ring dual-flow nozzles 33 and the outer ring dual-flow nozzles 34 synchronously spray evenly onto the inner and outer surfaces of the suspended wire coil.

[0028] The three-dimensional spray system 3 is connected to the lubricating fluid supply device 4, which is equipped with a main mixing tank 41 and an auxiliary mixing tank 42 in parallel. The main mixing tank 41 or the auxiliary mixing tank 42 provides lubricating fluid to the three-dimensional spray system 3. When one mixing tank is working, the other mixing tank can be cleaned or kept on standby, improving the continuous operation capability.

[0029] It should be noted that the applicant has already filed a separate patent application for a lubricant spraying device for the surface of wire coils. In this application, the lubricant spraying device for the surface of wire coils is not the subject of this application's protection, and its specific structure and principle will not be described in detail here. The waste liquid collection system 100 claimed in this patent will be described in detail below.

[0030] like Figure 1 and Figure 4 As shown, the waste liquid collection system 100 includes a submerged groove 101, a waste liquid collection tank 102, a filtration sedimentation tank 103, a waste liquid collection bucket 104, a fine filter 105, and a circulating liquid tank 106 connected in sequence.

[0031] The bottom of the cylindrical outer shell 22 is provided with a waste liquid discharge pipe. One end of the waste liquid discharge pipe is connected to the bottom of the inner side of the cylindrical outer shell 22, and the other end is connected to the recessed groove 101 located at the bottom of the ground rail.

[0032] Waste liquid collection tank 102 is buried in the ground and is lower than the sunken groove 101. The sunken groove 101 is connected to the waste liquid collection tank 102 through a drip pipe 1011. The waste liquid collection tank 102 is connected to the inlet of the filter sedimentation tank 103 through a waste liquid pumping pipe 1023.

[0033] The filtration sedimentation tank 103 has two output ends. The first output end 1033 is connected to the waste liquid collection tank 104, and the second output end 1034 is connected to the circulating liquid tank 106 through the fine filter 105. The circulating liquid tank 106 is equipped with a water replenishment pipeline 1062 and an oil replenishment pipeline 1063. The liquid outlet of the circulating liquid tank 106 is connected to the three-dimensional spray system 3.

[0034] In an alternative embodiment, such as Figure 5 As shown, the circulating liquid tank 106 is equipped with a stirring device 5. The stirring device 5 is equipped with a stirring motor 51, a stirring shaft 52 and blades 53. The stirring motor 51 is installed on the top of the circulating liquid tank 106, the stirring shaft 52 is located inside the circulating liquid tank 106, the top end of the stirring shaft 52 passes through the circulating liquid tank 106 and is connected to the output shaft of the stirring motor 51, and the bottom end of the stirring shaft 52 is connected to the blades 53.

[0035] In an optional embodiment, the circulating liquid tank 106 is equipped with a component analyzer 1061 and a level gauge. The component analyzer 1061 analyzes the composition of the lubricating fluid recovered in the circulating liquid tank 106. Simultaneously, based on the liquid level detected by the level gauge, the water replenishment line 1062 and the oil replenishment line 1063 are activated in a timely manner to replenish water or oil, ensuring the stability of the recovered lubricating fluid's composition and meeting the quality requirements for subsequent spraying. Both the component analyzer 1061 and the level gauge are connected to a PLC control system. When the component analyzer detects that the content of a certain component in the lubricating fluid is lower than a preset threshold, the PLC control system automatically triggers the control valve of the water replenishment line or the oil replenishment line to replenish the corresponding water or oil into the circulating liquid tank, thereby adjusting the composition ratio of the lubricating fluid. The specific control logic of the PLC control system is a conventional technique for those skilled in the art and will not be described in detail here.

[0036] In an alternative embodiment, such as Figure 4 As shown, the upper and lower sides of the filter sedimentation tank 103 are staggered with baffles 1031, which makes the liquid inside flow in a meandering manner, which facilitates the deposition of solids in the liquid at the bottom of the filter sedimentation tank 103, while extending the residence time of the liquid in the filter sedimentation tank, improving the sedimentation effect, and improving the quality of the waste liquid collected by the circulating liquid tank 106.

[0037] In an alternative embodiment, such as Figure 4 As shown, the top of the waste liquid collection tank 102 is provided with multiple recessed inlets 1021, and the bottom plate of the inlet 1021 is provided with a perforated plate with a diameter of 3mm. A filter cartridge 1022 with a diameter of 1.5mm is installed inside the waste liquid collection tank 102. One end of the waste liquid pumping pipe 1023 is connected to the internal channel of the filter cartridge 1022, and the other end is connected to the filter water bucket 1032 at the top of the filtration sedimentation tank 103. The filter water bucket 1032 is densely covered with small holes with a diameter of 1.5mm. After the waste liquid in the waste liquid collection tank 102 is filtered by the filter cartridge 1022, it is then transported to the filtration sedimentation tank 103 via the waste liquid pumping pipe 1023.

[0038] In an optional embodiment, two parallel fine filters 105 are connected between the second output terminal 1034 and the circulating liquid tank 106. Each fine filter 105 is equipped with a control valve at the end near the filtration sedimentation tank 103. The filtration accuracy of the fine filters 105 is 0.5-1mm. When the waste liquid collection system 100 is running, the control valve ensures that only one of the two fine filters 105 operates at a time. If the current fine filter 105 reaches its filtration limit, the system switches to the other fine filter 105 for filtration, and the current fine filter 105 is disassembled and maintained to ensure the filtration effect.

[0039] In an optional embodiment, the waste liquid pumping pipe 1023 is equipped with a pneumatic diaphragm pump 107 for drawing liquid from the waste liquid collection tank 102 and transporting it to the filtration sedimentation tank 103.

[0040] A solenoid valve is connected between the first output terminal 1033 and the waste liquid collection tank 104 to control the discharge of flocculent material deposited at the bottom of the filtration sedimentation tank 103.

[0041] After the waste liquid is transported to the sinking groove 101, it passes through multiple filtration stages before being transported to the circulating liquid tank 106: 1) The first filtration stage is the bottom plate with a 3mm aperture at the inlet 1021; 2) The second filtration stage is the filter cartridge 1022; 3) The third filtration stage is the filter water hopper 1032 in the sedimentation tank 103; 4) The fourth filtration stage is the baffle inside the sedimentation tank 103; 5) The fifth filtration stage is the fine filter 105.

[0042] The working principle of this utility model is as follows:

[0043] The working principle of the waste liquid collection system 100 is as follows:

[0044] 1. Waste liquid discharge: The waste lubricating liquid accumulated at the bottom of the cylindrical outer shell 22 of the spray trolley flows into the sunken groove 101 at the bottom of the ground rail through the waste liquid discharge pipe.

[0045] 2. Preliminary collection: Waste liquid in the sunken groove 101 flows naturally into the buried and lower waste liquid collection tank 102 through the drip pipe; the 3mm perforated plate of multiple sunken liquid inlets 1021 on the top of the tank completes the first stage of coarse filtration (blocking large particulate impurities).

[0046] 3. Second-stage filtration and pumping: After the waste liquid enters the waste liquid collection tank 102, the pneumatic diaphragm pump 107 draws the liquid from the inside of the 1.5mm aperture filter cartridge 1022 in the tank (second-stage medium filtration), and pumps it through the waste liquid pumping pipe 1023 to the filter water hopper 1032 (1.5mm small hole, third-stage medium filtration) at the top of the filtration sedimentation tank 103.

[0047] 4. Sedimentation and meandering flow: After the waste liquid falls into the filtration sedimentation tank 103, it is blocked by the staggered baffles 1031 and flows in a meandering manner (4th stage sedimentation), and solid impurities settle to the bottom.

[0048] 5. Traffic splitting:

[0049] - Non-recyclable waste liquid: The liquid in the sediment layer at the bottom of the sedimentation tank is transported to the waste liquid collection tank 104 through the first output end 1033 for storage to avoid pollution.

[0050] -Recyclable clear liquid: The clearer liquid in the upper layer of the filtration sedimentation tank 103 passes through the second output end 1034 → parallel double fine filter 105 (0.5-1mm accuracy, 5th stage fine filtration, one in use and one in standby) → circulating liquid tank 106.

[0051] 6. Composition adjustment and reuse: The circulating liquid tank 106 is equipped with a composition measuring instrument 1061 for real-time monitoring; when insufficient, water / oil is automatically replenished (water replenishment pipeline 1062, oil replenishment pipeline 1063); the stirring device 5 inside the tank keeps it uniform; qualified recovered liquid is finally pumped back to the three-dimensional spray system 3 for recycling.

[0052] This invention achieves efficient recycling and reuse of waste lubricating fluid through a five-stage filtration + sedimentation + automatic replenishment system consisting of a sunken groove 101, a waste liquid collection tank 102, a filtration sedimentation tank 103, and a circulating liquid tank 106, thereby reducing costs and waste.

[0053] The technical advantages of this utility model are as follows:

[0054] 1) Through a closed-loop system of five-stage filtration, sedimentation, and recycling, the waste liquid generated during the spraying process is efficiently recovered, purified, and reused in the three-dimensional spraying system, avoiding one-time discharge and significantly reducing the purchase of expensive lubricants and waste liquid treatment costs.

[0055] 2) The progressive filtration structure of 3mm coarse filtration → 1.5mm filter cartridge → 1.5mm filter water funnel → meandering sedimentation → 0.5–1mm fine filtration is adopted to remove solid particles, iron filings and flocculent matter layer by layer. The cleanliness of the recovered liquid is high and can directly meet the requirements of the spray process without the need for additional addition of new liquid for dilution.

[0056] 3) The circulating liquid tank has a built-in component measuring instrument and PLC automatic water / oil replenishment system to monitor the oil-water ratio in real time and automatically replenish missing components, ensuring that the physical and chemical properties of the recycled lubricating fluid are consistent with those of the new fluid, and avoiding uneven coverage or protection failure on the coil surface due to component fluctuations.

[0057] 4) Two sets of fine filters, one in use and one on standby, with a control valve for switching. When one set reaches its filtration limit, it can be seamlessly switched to the other set. The filter element can be disassembled, cleaned or replaced without stopping the machine, ensuring production continuity and reducing maintenance downtime.

[0058] 5) The waste liquid collection tank is buried underground and the drainage is diverted by a sunken groove, which does not take up ground space; all pipelines are arranged along the ground rail, which does not require major modification of the spray cart and ground rail structure, making it easy to upgrade old production lines.

[0059] 6) The staggered baffles in the sedimentation tank form an S-shaped meandering flow channel, which prolongs the residence time, promotes gravity sedimentation, effectively separates fine suspended solids, reduces the burden on subsequent fine filtration, and extends the life of the filter media.

[0060] 7) Non-recyclable sludge is periodically discharged into the waste liquid collection tank via the first output terminal and a switch solenoid valve for centralized off-site treatment; recyclable clear liquid enters the recycling system for reuse, achieving the dual goals of solid waste reduction and liquid resource utilization, which meets the requirements of green metallurgy.

[0061] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A waste liquid collection system for a wire coil surface lubricant spraying device, the wire coil surface lubricant spraying device comprising a spraying trolley slidably mounted on a ground rail, a cylindrical outer shell mounted on the chassis of the spraying trolley, a three-dimensional spraying system installed inside the cylindrical outer shell, the three-dimensional spraying system being connected to a lubricant supply device, characterized in that, The waste liquid collection system includes a submerged trough, a waste liquid collection tank, a filtration sedimentation tank, a waste liquid collection bucket, a fine filter, and a circulating liquid tank, connected in sequence. The bottom of the cylindrical shell is equipped with a waste liquid discharge pipe. One end of the waste liquid discharge pipe is connected to the bottom of the inner side of the cylindrical shell, and the other end is connected to a recessed groove located at the bottom of the ground rail. The waste liquid collection tank is buried in the ground and is lower than the sunken groove. The sunken groove is connected to the waste liquid collection tank through a drip pipeline. The waste liquid collection tank is connected to the inlet of the filtration sedimentation tank through a waste liquid pumping pipe. The filtration sedimentation tank has two output ends. The first output end is connected to the waste liquid collection tank, and the second output end is connected to the circulating liquid tank through a fine filter. The circulating liquid tank is equipped with a water replenishment pipeline and an oil replenishment pipeline. The liquid outlet of the circulating liquid tank is connected to the three-dimensional spray system.

2. The waste liquid collection system as described in claim 1, characterized in that, The circulating liquid tank is equipped with a stirring device, which includes a stirring motor, a stirring shaft, and blades. The stirring motor is installed on the top of the circulating liquid tank, the stirring shaft is located inside the circulating liquid tank, the top of the stirring shaft passes through the circulating liquid tank and is connected to the output shaft of the stirring motor, and the bottom of the stirring shaft is connected to blades.

3. The waste liquid collection system as described in claim 1, characterized in that, The circulating liquid tank is equipped with a component measuring instrument and a level gauge.

4. The waste liquid collection system as described in claim 1, characterized in that, The filtration sedimentation tank has baffles arranged alternately on the upper and lower sides, which makes the liquid inside flow in a meandering manner.

5. The waste liquid collection system as described in claim 1, characterized in that, The top of the waste liquid collection tank is equipped with multiple recessed inlets, and the bottom plate of the inlet is equipped with a perforated plate with a diameter of 3mm. A filter cartridge with a pore size of 1.5 mm is installed in the waste liquid collection tank. One end of the waste liquid pumping pipe is connected to the internal channel of the filter cartridge, and the other end is connected to the filter water bucket at the top of the filtration sedimentation tank. The filter water bucket is densely covered with holes with a pore size of 1.5 mm. The filtration accuracy of the fine filter is 0.5-1mm.

6. The waste liquid collection system as described in claim 5, characterized in that, There are two parallel fine filters between the second output end and the circulating liquid tank. Each fine filter is equipped with a control valve at the end near the sedimentation tank.

7. The waste liquid collection system as described in claim 5, characterized in that, A pneumatic diaphragm pump is installed on the waste liquid pumping pipe; A solenoid valve is connected between the first output terminal and the waste liquid collection tank.

Images