A treatment device for treating welding wire production wastewater

Abstract

The present invention provides a treatment device for treating welding wire production wastewater, comprising a tank body, an oil discharge mechanism arranged above the tank body, and a mud collection mechanism arranged below the tank body, wherein a sedimentation mechanism is arranged in the tank body at a position corresponding to the position between the oil discharge mechanism and the mud collection mechanism; the oil discharge mechanism comprises an oil discharge pipe, and the oil discharge pipe is connected to the tank body; the sedimentation mechanism comprises an isolation sleeve, and the isolation sleeve is arranged coaxially with the tank body, and there is a flow gap between the isolation sleeve and the inner wall of the tank body, and a water inlet pipe connected to the flow gap is arranged on the tank body, and the water inlet pipe is arranged on one side of the isolation sleeve; the mud collection mechanism comprises an agitation assembly arranged in the tank body, and a shielding cover is arranged in the tank body at a position corresponding to the position above the agitation assembly, and a discharge pipe connected to the tank body is arranged at a position corresponding to the position below the agitation assembly. The treatment device for treating welding wire production wastewater described in the present invention has the advantages of small size, simple structure, and high degree of integration.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a treatment device for treating welding wire production wastewater. Background Art

[0002] The raw material of welding wire is usually rolled steel strip or steel wire. In order to ensure that the raw material steel strip or steel wire does not rust during long-term storage, a layer of protective oil is applied to the surface of the steel strip or steel wire. Drawing oil is also required during the production and drawing process of welding wire. Drawing oil is suitable for the drawing process of stainless steel, alloy steel, steel and ferrous metal products. It plays a lubricating and cooling role, can effectively reduce the friction between the workpiece and the mold, reduce wear, and has a strong oil film. It can effectively reduce the occurrence of scratches, scratches, sintering welding, cracking and other phenomena, and improve the quality of welding wire production. At the same time, after the welding wire is drawn and formed, copper is generally plated on the surface of the welding wire to improve the corrosion resistance of the welding wire and extend the service life of the welding wire.

[0003] Before and after wire drawing and copper plating, the welding wire needs to be cleaned to remove impurities or oil on the surface of the welding wire, which will produce a large amount of wastewater. Impurities and copper and iron fragments in these wastewaters are easily attached to the oil. Filtration separation alone cannot effectively remove the oil attached to the solid matter, and thus cannot achieve continuous and effective separation of oil and water, which increases the difficulty of subsequent treatment of wastewater and solid matter, and is not conducive to improving the wastewater treatment efficiency. Summary of the invention

[0004] In view of this, the present invention aims to propose a treatment device for treating welding wire production wastewater to solve the problem that existing wastewater treatment devices cannot effectively remove oil attached to solid matter, affecting the subsequent treatment efficiency of wastewater and solid matter.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A treatment device for treating welding wire production wastewater, comprising a tank body, an oil discharge mechanism arranged above the tank body, and a mud collection mechanism arranged below the tank body, wherein a sedimentation mechanism is arranged in the tank body at a position corresponding to the position between the oil discharge mechanism and the mud collection mechanism;

[0007] The oil discharge mechanism comprises an oil discharge pipe, and the oil discharge pipe is connected with the tank body;

[0008] The sedimentation mechanism comprises an isolation sleeve, the isolation sleeve is coaxially arranged with the tank body, a flow gap exists between the isolation sleeve and the inner wall of the tank body, a water inlet pipe connected with the flow gap is arranged on the tank body, and the water inlet pipe is arranged corresponding to one side of the isolation sleeve;

[0009] The mud collecting mechanism includes a stirring assembly arranged in a tank body, a shielding cover is provided in the tank body at a position corresponding to the top of the stirring assembly, and a discharge pipe connected to the tank body is provided at a position corresponding to the bottom of the stirring assembly; there is a passing gap between the edge of the shielding cover and the inner wall of the tank body for facilitating the falling of solid matter, and a water outlet pipe is provided at a position corresponding to the isolation sleeve on the shielding cover, one end of the water outlet pipe extends out of the tank body, and the other end extends into the isolation sleeve, and the end of the water outlet pipe extending into the isolation sleeve is provided with a water guide pipe and an oil guide sleeve; the oil guide sleeve is sleeved on the outside of the water outlet pipe, and there is an oil-passing gap between the inner wall of the oil guide sleeve and the outer wall of the water outlet pipe, one end of the water guide pipe extends out of the oil guide sleeve and is connected with the isolation sleeve, and the other end is connected with the water outlet pipe; an oil collecting cover for shielding the water guide pipe is provided at one end of the oil guide sleeve facing the shielding cover, and the other end extends out of the isolation sleeve and is connected with the tank body, the oil collecting cover is arranged below the corresponding water guide pipe, and a recessed portion connected with the oil guide sleeve is provided at one end of the oil collecting cover facing the shielding cover.

[0010] Furthermore, a plurality of the oil collecting covers are arranged at intervals along the length direction of the oil guide sleeve, and a position on the oil guide sleeve corresponding to each oil collecting cover is provided with a liquid inlet connected to the recessed portion.

[0011] Furthermore, there is a water gap between the edge of the oil collecting hood and the inner wall of the isolation sleeve, and an inclined portion is provided at one end of the oil collecting hood facing the water diversion pipe to facilitate the falling of solid matter.

[0012] Furthermore, one end of the shielding cover facing the oil collecting cover is provided with a conical end portion for facilitating the falling of solid matter.

[0013] Furthermore, a receiving groove for receiving the stirring assembly is provided on one end of the shielding cover facing the stirring assembly, and an oil drain hole connected to the receiving groove is provided at the other end corresponding to the position of the oil collecting cover.

[0014] Furthermore, the outer diameter of the shielding cover is greater than the outer diameter of the isolation sleeve.

[0015] Furthermore, the stirring assembly includes a stirring member, and the tank body is provided with a driver for driving the stirring member to rotate.

[0016] Furthermore, one end of the water guide pipe extending out of the oil guide sleeve is provided with a bending portion inclined upward.

[0017] Furthermore, a detachable cover plate is provided on the tank body at a position corresponding to the top of the oil drain pipe.

[0018] Furthermore, the oil discharge mechanism also includes an oil skimming member, which is rotatably mounted on the tank body. The tank body is provided with a driving assembly for driving the oil skimming member to rotate, and an oil collecting trough connected to the oil discharge pipe is provided on the tank body at a position corresponding to below the oil skimming member.

[0019] Compared with the prior art, the device for treating welding wire production wastewater described in the present invention has the following advantages:

[0020] (1) The treatment device for treating welding wire production wastewater described in the present invention has the advantages of small size, simple structure and high degree of integration. It can realize continuous treatment of welding wire production wastewater and effectively separate oil and solid matter in the wastewater. The separation treatment effect is good, which is conducive to improving the subsequent treatment efficiency of wastewater, oil and solid matter.

[0021] (2) The device for treating welding wire production wastewater described in the present invention sets a water inlet pipe corresponding to one side of the isolation sleeve, so that the wastewater entering the circulation gap through the water inlet pipe can flow along the circulation gap, and achieves initial separation under the action of centrifugation, so that the oil and solid matter in the wastewater can be separated. The oil flows upward after converging on the isolation sleeve and the inner wall of the tank body, and the solid matter settles downward, thereby achieving primary separation of the wastewater. At the same time, by setting an oil guide sleeve on the water outlet pipe in the isolation sleeve and setting an oil collecting hood on the oil guide sleeve, secondary separation treatment of the wastewater entering through the bottom of the isolation sleeve can be achieved, further improving the separation effect of the device on the oil and solid matter in the wastewater.

[0022] (3) The treatment device for treating welding wire production wastewater described in the present invention, by arranging a rotatable oil skimmer on the tank body and using a driving assembly to drive the oil skimmer to rotate, can accelerate the oil floating on the water surface to flow to the liquid collecting tank and finally be discharged from the tank body through the oil discharge pipe, thereby improving the collection efficiency of the oil and avoiding the accumulation of oil in the tank body, thereby preventing the oil from solidifying in the tank body, which is conducive to further improving the continuous treatment capacity and treatment efficiency of the treatment device for wastewater.

[0023] (4) The device for treating welding wire production wastewater described in the present invention adopts an annular oil collecting tank, and sets the oil collecting tank coaxially with the tank body. By setting an oil discharge port connected to the oil guide sleeve on the skimmer, the oil collected in the oil guide sleeve will continue to float up under the action of water pressure until the oil enters the skimmer and is finally discharged through the oil discharge port. The oil discharged through the oil discharge port can directly fall into the oil collecting tank, which is conducive to preventing the oil from spreading. At the same time, the rotating skimmer can also drive the oil collected in the oil guide sleeve. Due to the fast flow rate and low pressure at the oil discharge port, the oil in the oil guide sleeve can also flow quickly to the oil discharge port, so as to realize the extraction of the oil in the oil guide sleeve, prevent the oil in the oil guide sleeve from agglomerating and solidifying, and ensure that the oil can be discharged from the oil guide sleeve continuously and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic structural diagram of a treatment device for treating welding wire production wastewater according to Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic structural diagram of a tank in a treatment device for treating welding wire production wastewater according to Embodiment 1 of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of a treatment device for treating welding wire production wastewater according to Embodiment 1 of the present invention;

[0028] Figure 4 This is a schematic structural diagram of a treatment device for treating welding wire production wastewater according to Embodiment 2 of the present invention;

[0029] Figure 5 for Figure 4 Exploded diagram of

[0030] Figure 6 This is a schematic structural diagram of an oil skimming component in a treatment device for treating welding wire production wastewater according to a second embodiment of the present invention;

[0031] Figure 7 This is a schematic structural diagram of a tank body in a treatment device for treating welding wire production wastewater described in Example 3 of the present invention.

[0032] Description of reference numerals:

[0033] 1. Tank body; 2. Oil drain pipe; 3. Isolation sleeve; 4. Water inlet pipe; 5. Cover plate; 6. Water outlet pipe; 7. Water diversion pipe; 8. Oil guide sleeve; 9. Shielding cover; 10. Agitator; 11. Driver; 12. Discharge pipe; 13. Oil drain hole; 14. Oil gap; 15. Receiving tank; 16. Liquid inlet; 17. Oil collecting cover; 18. Conical end; 19. Flow gap; 20. Oil skimmer; 21. Drive assembly; 22. Oil collecting tank; 23. Scraper; 24. Rotary joint; 25. Oil drain port. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] Embodiment 1

[0036] Figure 1 This is a schematic diagram of the structure of a treatment device for treating welding wire production wastewater according to the first embodiment of the present invention. This device can be used to treat slag-containing wastewater generated in the welding wire production process, and can achieve continuous and effective separation of solid matter, oil and wastewater, and has high treatment efficiency and good treatment effect, which is conducive to improving the subsequent treatment efficiency of wastewater and solid waste. Figure 1 The device comprises a tank body 1, an oil discharge mechanism disposed above the tank body 1, and a mud collection mechanism disposed below the tank body 1, wherein a sedimentation mechanism is disposed in the tank body 1 at a position corresponding to the position between the oil discharge mechanism and the mud collection mechanism.

[0037] The above-mentioned oil discharge mechanism includes an oil discharge pipe 2, and the oil discharge pipe 2 is connected to the tank body 1. The oil discharge pipe 2 can be connected to an external pipeline or oil treatment equipment through a control valve. By arranging the oil discharge pipe above the tank body 1, it can be ensured that the light oil floating on the water surface can be quickly discharged from the tank body 1 through the oil discharge pipe.

[0038] Figure 2 This is a schematic diagram of the structure of a tank in a treatment device for treating welding wire production wastewater according to Embodiment 1 of the present invention, see Figure 2 . The above-mentioned sedimentation mechanism includes an isolation sleeve 3, which is coaxially arranged with the tank body 1, and there is a circulation gap between the isolation sleeve 3 and the inner wall of the tank body 1. The tank body is provided with a water inlet pipe 4 connected with the circulation gap, and the water inlet pipe 4 is arranged corresponding to one side of the isolation sleeve 3. Exemplarily, the isolation sleeve 3 can be fixed in the tank body 1 by means of a frame to ensure that the isolation sleeve 3 remains stable in the tank body 1. By arranging the water inlet pipe 4 corresponding to one side of the isolation sleeve 3, the wastewater entering the circulation gap through the water inlet pipe 4 can flow along the circulation gap, and the initial separation is achieved under the action of centrifugation, so that the oil and solid matter in the wastewater can be separated. The oil flows upward after converging on the outer wall of the isolation sleeve 3 and the inner wall of the tank body 1, and the solid matter settles downward, thereby achieving the primary separation of the wastewater.

[0039] Figure 3 This is a schematic diagram of the internal structure of a treatment device for treating welding wire production wastewater according to Embodiment 1 of the present invention, see Figure 3 .

[0040] The above-mentioned mud collecting mechanism includes a stirring assembly arranged in the tank body 1, a shielding cover 9 is provided at a position corresponding to the top of the stirring assembly in the tank body 1, and a discharge pipe 12 connected to the tank body 1 is provided at a position corresponding to the bottom of the stirring assembly; there is a gap between the edge of the shielding cover 9 and the inner wall of the tank body 1 to facilitate the falling of solid matter, and a water outlet pipe 6 is provided at a position corresponding to the isolation sleeve 3 on the shielding cover 9, one end of the water outlet pipe 6 extends out of the tank body 1, and the other end extends into the isolation sleeve 3, and the end of the water outlet pipe 6 extending into the isolation sleeve 3 is provided with a water guide pipe 7 and an oil guide sleeve 8.

[0041] Specifically, the oil guide sleeve 8 is sleeved on the outside of the water outlet pipe 6, and there is an oil gap 14 between the inner wall of the oil guide sleeve 8 and the outer wall of the water outlet pipe 6. One end of the water guide pipe 7 extends out of the oil guide sleeve 8 and communicates with the isolation sleeve 3, and the other end is connected with the water outlet pipe 6; the end of the oil guide sleeve 8 facing the shielding cover 9 is provided with an oil collecting cover 17 for shielding the water guide pipe 7, and the other end extends out of the isolation sleeve 3 and communicates with the tank body 1. The oil collecting cover 17 is arranged below the water guide pipe 7, and the end of the oil collecting cover 17 facing the shielding cover 9 is provided with a recessed portion connected with the oil guide sleeve 8. Among them, the through gap is connected with the flow gap 19, and the flow gap 19 and the lower end of the isolation sleeve 3 are connected through the above-mentioned through gap.

[0042] For example, the shielding cover 9 can also be fixed on the tank body 1 through a frame, and one end of the water outlet pipe 6 extending into the isolation sleeve 3 is coaxially arranged with the isolation sleeve 3 to improve the oil gathering effect of the shielding cover 9. In actual use, in order to avoid interference between the water outlet pipe 6 and the stirring assembly, the water outlet pipe 6 can be provided with a curved section so that the water outlet pipe 6 can pass through the shielding cover 9 and extend out of the tank body 1. Those skilled in the art can also choose other ways of arranging the water outlet pipe 6 according to actual needs, which will not be repeated here.

[0043] In actual application, the wastewater after primary separation by the isolation sleeve 3 will enter the isolation sleeve 3 from above and below the isolation sleeve 3 through the circulation gap 19. The solid matter in the wastewater entering through the top of the isolation sleeve 3 is relatively small, and most of the oil has been gathered above the tank body 1. By setting the water guide pipe 7 in the isolation sleeve 3, the flow distance and standing time of the wastewater can be increased, and the oil and solid matter content in the wastewater can be further reduced to ensure the separation effect of the wastewater. The solid matter in the wastewater entering through the bottom of the isolation sleeve 3 is relatively large, and there is oil attached to the solid matter. Therefore, by setting the oil collecting cover 17, not only can the flow rate of the wastewater be further reduced, the solid matter is blocked from flowing upward, and the sedimentation of the solid matter can be accelerated, but also the oil separated in the secondary process can be well intercepted and converged, and the intercepted oil is guided into the oil guide sleeve 8, and then floated up to the top of the tank body 1 along the oil guide sleeve 8, so as to avoid the oil from entering the water guide pipe 7 during the floating process, thereby further improving the separation effect of oil and water.

[0044] Preferably, the above-mentioned oil collecting hoods 17 are arranged in multiple intervals along the length direction of the oil guide sleeve 8, and the position corresponding to each oil collecting hood 17 on the oil guide sleeve 8 is provided with a liquid inlet 16 connected to the recessed portion. Exemplarily, two, three or more oil collecting hoods 17 can be arranged at intervals, and the oil collecting hoods 17 can be fixed on the oil guide sleeve 8. In this embodiment, four oil collecting hoods 17 are set as an example, and the outer diameter of each oil collecting hood 17 gradually decreases from top to bottom, so that multiple oil collecting hoods 17 form an inverted triangle structure on the oil guide sleeve 8, so that the wastewater entering through the bottom of the isolation sleeve 3 can enter the gap between each oil collecting hood 17 more evenly, which is conducive to further improving the effect of multiple oil collecting hoods 17 on slowing down the flow speed of wastewater, accelerating the sedimentation of solid matter, and realizing the effective convergence and collection of floating oil, thereby improving the oil-water separation effect.

[0045] In actual application, multiple oil collecting covers 17 can play a multi-stage deceleration role on the wastewater flowing upward, accelerate the sedimentation of solid matter, and small oil droplets in the wastewater can also gather on the surface of the oil collecting cover 17, and gather to the concave part under the action of buoyancy, and finally enter the oil guide sleeve 8 to realize the collection of oil and reduce the amount of floating oil. At the same time, by using the oil collecting cover 17 to block the water guide pipe 7, the possibility of oil entering the water guide pipe 7 during the floating process can be further reduced.

[0046] Preferably, there is a water gap between the edge of the oil collecting hood 17 and the inner wall of the isolation sleeve 3, and the end of the oil collecting hood 17 facing the water diversion pipe 7 is provided with an inclined portion for facilitating the falling of solid matter. By setting the water gap, it is convenient for the wastewater entering from the bottom of the isolation sleeve 3 to enter the water diversion pipe 7 after sufficient deceleration sedimentation and oil-water separation. The wastewater does not need to be left still in the tank body 1 for a long time to achieve a good treatment effect, thereby improving the treatment capacity of the device for continuous wastewater. At the same time, the water gap can also facilitate the falling of solid matter precipitated above the oil collecting hood 17, further reducing the possibility of solid matter entering the water diversion pipe 7.

[0047] In actual application, by setting a sloped portion at one end of the oil collecting hood 17 facing the water diversion pipe 7 to facilitate the falling of solid matter, a good guiding effect can be played on the solid matter deposited on the oil collecting hood 17, guiding the solid matter to move downward along the sloped portion and finally fall to the bottom of the tank body 1, thereby preventing the solid matter from accumulating on the upper surface of the oil collecting hood 17.

[0048] Preferably, the shielding cover 9 is provided with a conical end 18 at one end facing the oil collecting cover 17 to facilitate the falling of solid matter. The conical end 18 can extend into the isolation sleeve 3, and there is a gap between the conical end 18 and the isolation sleeve 3. By providing the conical end 18 on the shielding cover 9, the conical end 18 is not only conducive to guiding the solid matter to continue to move downward, but also the conical end 18 can play a certain blocking role on the water flow entering the bottom of the isolation sleeve 3, changing the flow direction of the water flow, thereby slowing down the flow speed of the water flow and accelerating the sedimentation of the solid matter.

[0049] Preferably, a receiving groove 15 for receiving the stirring assembly is provided on one end of the shielding cover 9 facing the stirring assembly, and an oil drain hole 13 connected to the receiving groove 15 is provided at the position corresponding to the oil collecting cover 17 at the other end. Exemplarily, the oil drain hole 13 can be provided corresponding to the water outlet pipe 6, and the diameter of the oil drain hole 13 is larger than the outer diameter of the water outlet pipe 6, so that the separated oil can float. The receiving groove 15 can also play a good role in gathering the oil generated by the stirring assembly when stirring and cleaning the solid matter, ensuring that the oil generated by cleaning the solid matter can enter the oil guide sleeve 8 through the oil drain hole 13.

[0050] In actual application, the outer diameter of the shielding cover 9 is larger than the outer diameter of the isolation sleeve 3, so that the shielding area of ​​the shielding cover 9 can be increased, so that when the stirring component stirs the solid matter deposited at the bottom of the tank body 1, the solid matter is not easy to float up, ensuring that the wastewater in the isolation sleeve 3 is not affected by the stirring component.

[0051] Preferably, the stirring assembly includes a stirring member 10, and the tank body 1 is provided with a driver 11 for driving the stirring member 10 to rotate. Exemplarily, the stirring member 10 can adopt an existing stirring paddle, and the driver can adopt an existing driving motor, and the stirring member 10 can be connected to the driving motor through a speed reducer to reduce the rotation speed of the stirring member 10 to prevent the solid matter from floating due to the excessive rotation speed of the stirring member 10.

[0052] In actual application, by setting a stirring assembly under the shielding cover 9, when a certain amount of solid matter is deposited under the tank body 1, the stirring assembly can be started to stir and clean the solid matter, so that the oil attached to the solid matter can be separated from the solid matter, and finally float to the oil collecting cover 17 through the oil discharge hole 13 on the shielding cover 9 for collection, which is conducive to reducing the amount of oil residue on the surface of the solid matter and further improving the separation effect of the oil attached to the surface of the solid matter. In addition, when discharging solid matter, the stirring assembly can also be started to accelerate the movement of the solid matter to the discharge pipe 12, thereby increasing the discharge speed of the solid matter and preventing the solid matter from remaining or blocking.

[0053] Preferably, one end of the water guide pipe 7 extending out of the oil guide sleeve 8 is provided with a bent portion obliquely upward. By arranging the opening of the water guide pipe 7 at the upper end of the bent portion, the oil floating below the water guide pipe 7 is less likely to enter the water guide pipe 7.

[0054] Preferably, a detachable cover plate 5 is provided on the tank body 1 at a position corresponding to the top of the oil drain pipe 2. Exemplarily, the cover plate 5 can be fixed to the tank body 1 by bolts. By providing a detachable cover plate 5, the assembly and use and maintenance of the processing device are facilitated, which is conducive to improving the reliability of the processing device during use and reducing the use and maintenance costs.

[0055] The treatment device for treating welding wire production wastewater described in this embodiment has the advantages of small size, simple structure, and high degree of integration. It can realize continuous treatment of welding wire production wastewater, and can effectively separate oil and solid matter in the wastewater. The separation treatment effect is good, which is conducive to improving the subsequent treatment efficiency of wastewater, oil and solid matter.

[0056] The treatment device for treating welding wire production wastewater described in this embodiment also sets the water inlet pipe on one side of the isolation sleeve, so that the wastewater entering the circulation gap through the water inlet pipe can flow along the circulation gap, and achieves initial separation under the action of centrifugation, so that the oil and solid matter in the wastewater can be separated. The oil flows upward after converging on the isolation sleeve and the inner wall of the tank body, and the solid matter settles downward, so as to achieve primary separation of the wastewater. At the same time, by setting an oil guide sleeve on the water outlet pipe in the isolation sleeve and setting an oil collecting cover on the oil guide sleeve, secondary separation treatment of the wastewater entering through the bottom of the isolation sleeve can be achieved, further improving the separation effect of the oil and solid matter in the wastewater.

[0057] Embodiment 2

[0058] Figure 4 This is a schematic diagram of the structure of a treatment device for treating welding wire production wastewater according to the second embodiment of the present invention. Figure 5 for Figure 4 This embodiment is optimized based on the above embodiment. Figure 4 and Figure 5 In this embodiment, the specific improvement is: the oil discharge mechanism also includes an oil skimming member 20, and the oil skimming member 20 is rotatably mounted on the tank body 1. The tank body 1 is provided with a driving assembly 21 for driving the oil skimming member 20 to rotate, and the tank body 1 is provided with an oil collecting tank 22 connected to the oil discharge pipe 2 at a position corresponding to the bottom of the oil skimming member 20.

[0059] Exemplarily, the skimmer 20 is rotatably mounted on the cover plate 5, and the driving assembly 21 includes a motor disposed on the cover plate 5 for driving the skimmer 20 to rotate, and the skimmer 20 is connected to the output end of the motor via a rotating shaft. By disposing a rotatable skimmer 20 on the tank body 1 and disposing an oil collecting tank 22 connected to the oil drain pipe 2 below the skimmer 20, it is helpful to accelerate the discharge of oil to the outside, and the oil is not easy to accumulate in the tank body 1, which is helpful to further improve the continuous treatment effect of the treatment device on wastewater.

[0060] Figure 6 FIG. 1 is a schematic diagram of the structure of an oil skimmer in a treatment device for treating welding wire production wastewater according to Embodiment 2 of the present invention, see Figure 6 .

[0061] Preferably, an inclined scraper bar 23 can be provided on the oil skimmer 20, and a slope matching the scraper bar 23 can be provided on the oil collecting tank. The rotating shaft of the oil skimmer 20 is coaxially arranged with the tank body to realize rapid collection of oil. Exemplarily, the scraper bar 23 can be made of elastic materials such as rubber to facilitate the oil to be moved and pushed into the oil collecting tank.

[0062] In actual application, by using an electric motor to drive the skimmer 20 to rotate, the skimmer 20 can move the oil on the water surface to the oil collecting tank, so that the oil can enter the oil collecting tank and finally be discharged from the tank through the oil drain pipe, which is beneficial to improving the collection and discharge efficiency of the oil.

[0063] The treatment device for treating welding wire production wastewater described in this embodiment, by arranging a rotatable oil skimmer on the tank body and using a driving assembly to drive the oil skimmer to rotate, can accelerate the flow of oil floating on the water surface to the liquid collecting tank, and finally discharge it from the tank body through the oil drain pipe, thereby improving the oil collection efficiency, avoiding the accumulation of oil in the tank body, and preventing the oil from solidifying in the tank body, which is conducive to further improving the continuous treatment capacity and treatment efficiency of this treatment device for wastewater.

[0064] Embodiment 3

[0065] Figure 7 This is a schematic diagram of the structure of a tank in a treatment device for treating welding wire production wastewater according to Embodiment 3 of the present invention. This embodiment is optimized based on the above embodiment. Figure 7 In this embodiment, the specific improvement is as follows: the oil collecting groove 22 is an annular groove, the oil collecting groove 22 is coaxially arranged with the tank body 1, and is fixed on the inner wall of the tank body 1, the oil skimming member 20 is connected with the oil guide sleeve 8 through a rotary joint 24, and an oil discharge port 25 connected with the oil guide sleeve 8 is provided at a position corresponding to the oil collecting groove 22 on the oil skimming member 20.

[0066] Specifically, the skimmer 20 is a hollow tubular structural member, one end of the rotary joint 24 is connected to the oil guide sleeve 8, and the other end is connected to the skimmer 20. The rotating shaft of the rotary joint 24 is coaxially arranged with the tank body 1, and the oil guide sleeve 8 also needs to be coaxially arranged with the rotating shaft of the rotary joint 24. By connecting the skimmer 20 with the oil guide sleeve 8 through the rotary joint 24, and providing an oil discharge port 25 connected to the oil guide sleeve 8 on the skimmer 20, under the action of water pressure, the oil collected in the oil guide sleeve 8 will continue to float until the oil enters the skimmer 20 and is finally discharged through the oil discharge port 25. The oil discharged through the oil discharge port 25 can directly fall into the oil collecting tank 22, which is conducive to preventing the oil from diffusing and improving the separation and collection effect and collection efficiency of the oil.

[0067] During actual application, the operator can also use the driving assembly to drive the skimmer 20 to rotate. The rotating skimmer 20 can drive the oil above the tank body 1 to flow toward the inner wall of the tank body 1, and finally flow into the oil collecting tank 22, which is conducive to further driving the oil to accelerate the collection of the oil collecting tank 22 and improve the oil collection efficiency.

[0068] At the same time, the rotating skimmer 20 can also drive the oil collected in the oil guide sleeve 8. Due to the fast flow rate and low pressure at the oil discharge port 25, the oil in the oil guide sleeve 8 can also flow quickly to the oil discharge port 25, thereby realizing the extraction of the oil in the oil guide sleeve 8, preventing the oil in the oil guide sleeve 8 from gathering and solidifying, and ensuring that the oil can be continuously and stably discharged from the oil guide sleeve 8, which is conducive to improving the reliability of this treatment device during operation.

[0069] Preferably, the skimmer 20 is arc-shaped. By setting the skimmer 20 into an arc shape, a paddle-like structure can be formed, which is beneficial to improving the skimmer 20's stirring effect on the oil, pushing the oil quickly and effectively to the annular oil collecting tank 22, and accelerating the discharge of the oil.

[0070] The treatment device for treating welding wire production wastewater described in this embodiment adopts an annular oil collecting tank, and sets the oil collecting tank coaxially with the tank body. By setting an oil discharge port connected to the oil guide sleeve on the skimmer, the oil collected in the oil guide sleeve will continue to float under the action of water pressure until the oil enters the skimmer and is finally discharged through the oil discharge port. The oil discharged through the oil discharge port can directly fall into the oil collecting tank, which is conducive to preventing the oil from spreading. At the same time, the rotating skimmer can also drive the oil collected in the oil guide sleeve. Due to the fast flow rate and low pressure at the oil discharge port, the oil in the oil guide sleeve can also flow quickly to the oil discharge port, so as to realize the extraction of the oil in the oil guide sleeve, prevent the oil in the oil guide sleeve from agglomerating and solidifying, and ensure that the oil can be discharged from the oil guide sleeve continuously and stably.

[0071] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A treatment device for treating welding wire production wastewater, characterized in that: It comprises a tank body (1), an oil discharge mechanism arranged above the tank body (1), and a mud collection mechanism arranged below the tank body (1), wherein a sedimentation mechanism is arranged in the tank body (1) at a position corresponding to the oil discharge mechanism and the mud collection mechanism; The oil discharge mechanism comprises an oil discharge pipe (2), and the oil discharge pipe (2) is connected to the tank body (1); The sedimentation mechanism comprises an isolating sleeve (3), the isolating sleeve (3) is coaxially arranged with the tank body (1), a flow gap (19) is present between the isolating sleeve (3) and the inner wall of the tank body (1), a water inlet pipe (4) communicating with the flow gap (19) is provided on the tank body (1), and the water inlet pipe (4) is arranged corresponding to one side of the isolating sleeve (3); The mud collecting mechanism comprises a stirring assembly arranged in a tank body (1); a shielding cover (9) is arranged in a position corresponding to the top of the stirring assembly in the tank body (1); a discharge pipe (12) connected to the tank body (1) is arranged in a position corresponding to the bottom of the stirring assembly; a gap is provided between the edge of the shielding cover (9) and the inner wall of the tank body (1) to facilitate the falling of solid matter; a water outlet pipe (6) is arranged in a position corresponding to the isolation sleeve (3) on the shielding cover (9); one end of the water outlet pipe (6) extends out of the tank body (1) and the other end extends into the isolation sleeve (3); the end of the water outlet pipe (6) extending into the isolation sleeve (3) is provided with a water guide pipe (7) and an oil guide sleeve (8); The oil guide sleeve (8) is sleeved on the outside of the water outlet pipe (6), and an oil gap (14) exists between the inner wall of the oil guide sleeve (8) and the outer wall of the water outlet pipe (6); one end of the water guide pipe (7) extends out of the oil guide sleeve (8) and is connected to the isolation sleeve (3), and the other end is connected to the water outlet pipe (6); the end of the oil guide sleeve (8) facing the shielding cover (9) is provided with an oil collecting cover (17) for shielding the water guide pipe (7), and the other end extends out of the isolation sleeve (3) and is connected to the tank body (1); the oil collecting cover (17) is arranged below the water guide pipe (7), and the end of the oil collecting cover (17) facing the shielding cover (9) is provided with a recessed portion connected to the oil guide sleeve (8).

2. A treatment device for treating welding wire production wastewater according to claim 1, characterized in that: A plurality of the oil collecting covers (17) are arranged at intervals along the length direction of the oil guide sleeve (8), and a liquid inlet (16) communicating with the recessed portion is provided at a position corresponding to each oil collecting cover (17) on the oil guide sleeve (8).

3. A treatment device for treating welding wire production wastewater according to claim 1 or 2, characterized in that: There is a water gap between the edge of the oil collecting cover (17) and the inner wall of the isolation sleeve (3), and an inclined portion for facilitating the falling of solid matter is provided at one end of the oil collecting cover (17) facing the water diversion pipe (7).

4. The device for treating welding wire production wastewater according to claim 1, characterized in that: One end of the shielding cover (9) facing the oil collecting cover (17) is provided with a conical end portion (18) for facilitating the falling of solid matter.

5. A treatment device for treating welding wire production wastewater according to claim 1 or 4, characterized in that: The shielding cover (9) is provided with a receiving groove (15) for receiving the stirring assembly at one end thereof facing the stirring assembly, and an oil drain hole (13) communicating with the receiving groove (15) is provided at the other end thereof at a position corresponding to the oil collecting cover (17).

6. The device for treating welding wire production wastewater according to claim 1, characterized in that: The outer diameter of the shielding cover (9) is greater than the outer diameter of the isolation sleeve (3).

7. The device for treating welding wire production wastewater according to claim 1, characterized in that: The stirring assembly comprises a stirring member (10), and the tank body (1) is provided with a driver (11) for driving the stirring member (10) to rotate.

8. The device for treating welding wire production wastewater according to claim 1, characterized in that: One end of the water guide pipe (7) extending out of the oil guide sleeve (8) is provided with a bent portion inclined upward.

9. The device for treating welding wire production wastewater according to claim 1, characterized in that: A detachable cover plate (5) is provided on the tank body (1) at a position corresponding to the top of the oil drain pipe (2).

10. A treatment device for treating welding wire production wastewater according to claim 1 or 9, characterized in that: The oil discharge mechanism further comprises an oil skimming member (20), the oil skimming member (20) being rotatably mounted on the tank body (1), the tank body (1) being provided with a driving assembly (21) for driving the oil skimming member (20) to rotate, and an oil collecting tank (22) communicating with the oil discharge pipe (2) being provided at a position on the tank body (1) corresponding to below the oil skimming member (20).

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