Pickling phosphating and paint spraying wastewater purification and recovery device

Abstract

The utility model relates to the field of acid pickling phosphating wastewater treatment, in particular to an acid pickling phosphating and paint spraying wastewater purification and recovery device. The lower inner wall of the purifying box is horizontally and slidably connected with a sediment collecting box, a sewage discharging assembly is installed at the side end of the purifying box and communicates with the side end of the sediment collecting box, sediment sewage can be stored in the purifying box, an alkaline sodium hydroxide solution and a coagulant are put into the purifying box for standing, and sediment sludge is formed. Water flow obtained after surface purification can be adsorbed through the water surface water pumping mechanism and then put into a sand filter and the like for follow-up filtration for up-to-standard discharge or recycling, after a large amount of sediment is collected by the sediment collection box, water flow in the purification box is pumped, sludge is pushed to the sewage discharge assembly through the sludge pushing mechanism to be discharged, and the sediment collection box needs to be cleaned after long-time use. The sediment collecting box can be drawn out, and thorough cleaning is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of pickling and phosphating wastewater treatment, and particularly to a pickling, phosphating and painting wastewater purification and recycling device. Background Technique

[0002] Pickling, phosphating and painting wastewater is a kind of pollutant generated in the industrial production process, which contains various harmful substances such as acids, phosphorus, heavy metals, etc. These pollutants cause serious harm to the human body and the environment. Therefore, the treatment of pickling and phosphating wastewater is particularly important. In the prior art, generally, alkaline substances and coagulants for precipitation are put into the purification tank to make the pollutants precipitate, and then enter the sand filter tank for circulating filtration until reaching the standard for discharge or recycling.

[0003] After retrieval, a Chinese patent discloses a new type of pickling and phosphating wastewater treatment device (publication number: CN 217449073U). This patented technology solves the problem that in the current new type of pickling and phosphating wastewater treatment device, when the area in the wastewater sedimentation tank is large, the efficiency of discharging the sedimented sludge is low and the time consumption is long. However, in the technical solution of the above patent document, when cleaning the collection box, it is necessary to lift the inner box as a whole and then push it for cleaning, which is rather troublesome. At the same time, the existing pumping position is fixed at the upper half of the water tank, and it is impossible to accurately pump the cleaner water near the water surface.

[0004] Therefore, a pickling, phosphating and painting wastewater purification and recycling device is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pickling, phosphating and painting wastewater purification and recycling device to solve the above problems, and improve the problem that when cleaning the collection box, it is necessary to lift the inner box as a whole and then push it for cleaning, which is rather troublesome. At the same time, the existing pumping position is fixed at the upper half of the water tank, and it is impossible to accurately pump the cleaner water near the water surface.

[0006] The utility model realizes the above purpose through the following technical solutions. A pickling, phosphating and painting wastewater purification and recycling device includes: a purification tank, a precipitation collection box is horizontally slidably connected to the lower inner wall of the purification tank, a sewage discharge component is installed on the side end of the purification tank, and the sewage discharge component is communicated with the side end of the precipitation collection box; a sewage pushing mechanism for pushing the precipitated sludge in the precipitation collection box to be discharged by the sewage discharge component is arranged on the upper side of the precipitation collection box; a water surface pumping mechanism for controlling the pumping height to keep pumping at the water surface is arranged on one side of the purification tank; wherein, the water surface pumping mechanism includes a water surface fitting component arranged on one side of the purification tank, and an auxiliary stabilizing component is arranged on one side of the water surface fitting component.

[0007] Preferably, the sludge pushing mechanism includes a second lead screw rotatably connected to the inner wall of the purification tank. One end of the second lead screw rotatably penetrates through the side end of the purification tank and extends outward. A first pushing slider is threadedly connected to the surface of the second lead screw. A sliding rod is vertically slidably connected to the inner wall of the first pushing slider. A pushing plate is fixedly connected to the lower end of the sliding rod. A driving motor is fixedly connected to the side end of the purification tank. The second lead screw is fixedly connected to the output end of the driving motor. The sludge deposited in the sediment collection tank can be pushed out through the sewage discharge component by the sludge pushing mechanism.

[0008] Preferably, a limiting rod is fixedly connected to one inner wall of the purification tank. One end of the limiting rod movably penetrates through the first pushing slider and extends outward. When the sludge pushing mechanism pushes the sludge in the sediment collection tank, the sludge pushing mechanism is more stable and will not skew through the limiting rod.

[0009] Preferably, a first pushing lead screw is rotatably connected to the upper end of the first pushing slider. A second pushing slider is fixedly connected to the upper end of the sliding rod. The second pushing slider is threadedly connected to the first pushing lead screw. The pushing plate is lifted by the threaded connection between the second pushing slider and the first pushing lead screw, which is convenient for disassembling and cleaning the sediment collection tank.

[0010] Preferably, the water surface pumping mechanism includes a water pump fixedly connected to the side end of the purification tank. A telescopic hose is fixedly connected to the water inlet end of the water pump. A floating plate is fixedly connected to the circumferential surface of the telescopic hose. The water pumping end can be lifted by the water surface pumping mechanism, reducing the amount of bottom sediment sucked.

[0011] Preferably, a limiting box is fixedly connected to the inner wall of the purification tank. The floating plate is slidably matched with the inner wall of the limiting box. The floating plate can drive the water pumping part of the water pump to float on the water surface stably without skewing through the limiting box.

[0012] Preferably, a sliding hole is opened on the side end of the limiting box. A synchronous slider is slidably connected to the inner wall of the sliding hole. The synchronous slider is fixedly connected to the side end of the floating plate. A scale is fixedly connected to the upper end of the synchronous slider. The upper end of the scale movably penetrates through the upper end of the limiting box and extends upward. The water level in the purification tank can be directly viewed through the sliding hole, which is convenient for controlling the amount of water pumped.

[0013] Preferably, a blocking rod is fixedly connected to the inner wall of the limiting box. The blocking rod is arranged below the floating plate. The lowest position of the floating plate can be limited through the blocking rod, preventing a large amount of sediment sludge from being sucked at too low a position and preventing the floating plate from blocking the extraction of the sediment collection tank when the sediment collection tank is taken out for cleaning due to too low a water level.

[0014] The beneficial effects of the present utility model are:

[0015] 1. The purification tank can store precipitated sewage. An alkaline sodium hydroxide solution and a coagulant are put into the purification tank and left standing to form precipitated sludge. Through the water surface pumping mechanism, the purified water flow on the surface can be adsorbed and then put into subsequent filtration such as a sand filter for discharge up to standard or recycling. When the precipitation collection tank collects a large amount of precipitates, the water flow in the purification tank is pumped out, and the sludge is pushed to the sewage discharge component by the sewage pushing mechanism for discharge. When the precipitation collection tank needs to be cleaned after long-term use, the precipitation collection tank can be pulled out for more convenient thorough cleaning;

[0016] 2. The lowest position of the floating plate can be restricted by the blocking rod to prevent a large amount of precipitated sludge from being sucked at too low a position, and to prevent the floating plate from blocking the extraction of the precipitation collection tank due to too low a water level when taking out and cleaning the precipitation collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front perspective view of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the sewage pushing mechanism of the present utility model;

[0020] Figure 4 is the structural schematic diagram of the water surface pumping mechanism of the present utility model.

[0021] In the figure: 1. Purification tank; 2. Precipitation collection tank; 3. Sewage discharge component; 4. Sewage pushing mechanism; 401. Pushing plate; 402. Slide bar; 403. First pushing slider; 404. First pushing lead screw; 405. Driving motor; 406. Second lead screw; 407. Limit rod; 408. Second pushing slider; 5. Water surface pumping mechanism; 501. Water surface fitting component; 5011. Water pump; 5012. Telescopic hose; 5013. Floating plate; 502. Auxiliary stability component; 5021. Slide hole; 5022. Synchronous slider; 5023. Scale; 5024. Blocking rod; 5025. Limit box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Specifically implemented as: As Figures 1-4As shown in the figure, a pickling, phosphating and painting wastewater purification and recovery device includes: a purification tank 1, a precipitation collection tank 2 is horizontally slidably connected to the lower inner wall of the purification tank 1, a sewage discharge component 3 is installed on the side end of the purification tank 1, and the sewage discharge component 3 is communicated with the side end of the precipitation collection tank 2; a sewage pushing mechanism 4 for pushing the precipitated sludge in the precipitation collection tank 2 to be discharged by the sewage discharge component 3 is arranged on the upper side of the precipitation collection tank 2; a water surface pumping mechanism 5 for controlling the pumping height to keep the water surface pumped is arranged on one side of the purification tank 1; wherein, the water surface pumping mechanism 5 includes a water surface fitting component 501 arranged on one side of the purification tank 1, and an auxiliary stabilizing component 502 is arranged on one side of the water surface fitting component 501. When the wastewater in the purification tank 1 is purified and circulated by this device, first, the wastewater is discharged into the purification tank 1, then an alkaline sodium hydroxide solution is added into the purification tank 1 to neutralize the pH value of the solution in the neutralization tank, and then a coagulant is added and left standing to form a precipitate, which precipitates into the precipitation collection tank 2 for collection. At this time, the purified water flow on the water plant surface can be pumped through the water surface pumping mechanism 5 and input into subsequent filtration cycles such as a sand filter for reuse. When a large amount of precipitate is collected in the precipitation collection tank 2, the water flow in the purification tank 1 is pumped, and then the sludge is pushed to the sewage discharge component 3 for discharge through the sewage pushing mechanism 4. When the precipitation collection tank 2 needs to be cleaned after long-term use, the sealed part of the sewage discharge component 3 can be pulled out, and then the precipitation collection tank 2 can be pulled out for more convenient thorough cleaning. The precipitation collection tank 2 fits closely and is sealed with the inner wall of the purification tank 1 and will not leak. The sewage discharge component 3 includes a sewage discharge hole and a sealing plug, which are arranged at the lower part of the side inner wall of the precipitation collection tank 2 and penetrate through the precipitation collection tank 2 and the purification tank 1, and can connect and seal the sewage discharge parts of the purification tank 1 and the precipitation collection tank 2. When the sewage pushing mechanism 4 pushes the sludge in the precipitation collection tank 2, it can be discharged through the sewage discharge component 3. For those skilled in the art, the precipitation collection tank 2, the precipitation collection tank 2 and the sewage discharge component 3 are all prior arts and will not be elaborated here.

[0024] As Figure 2 and Figure 3As shown in the figure, the sewage pushing mechanism 4 includes a second lead screw 406 rotatably connected to the inner wall of the purification tank 1. One end of the second lead screw 406 rotatably penetrates through the side end of the purification tank 1 and extends outward. A first pushing slider 403 is threadedly connected to the surface of the second lead screw 406. A sliding rod 402 is vertically slidably connected to the inner wall of the first pushing slider 403. A pushing plate 401 is fixedly connected to the lower end of the sliding rod 402. A driving motor 405 is fixedly connected to the side end of the purification tank 1. The second lead screw 406 is fixedly connected to the output end of the driving motor 405. When a large amount of sediment accumulates in the sediment collection tank 2 and it is necessary to discharge the sediment and dirt in the sediment collection tank 2, first, the water flow is discharged through the water pumping mechanism 5 on the water surface. At this time, the sewage discharge assembly 3 is started and the driving motor 405 is simultaneously started. The driving motor 405 drives the second lead screw 406 to rotate. The second lead screw 406 pushes the first pushing slider 403, the sliding rod 402, and the pushing plate 401 to move. The pushing plate 401 pushes the sludge deposited on the lower side of the sediment collection tank 2. The sediment collection tank 2 is started to rotate forward and backward, and the sludge is continuously pushed to the sewage discharge assembly 3 for subsequent treatment. After the sediment collection tank 2 is cleaned, sediment collection can be carried out again. For those skilled in the art, the driving motor 405 is a prior art and will not be elaborated here. A limiting rod 407 is fixedly connected to one inner wall of the purification tank 1. One end of the limiting rod 407 movably penetrates through the first pushing slider 403 and extends outward. When the second lead screw 406 rotates to drive the first pushing slider 403 to move, the first pushing slider 403 is likely to rotate along with the rotation of the second lead screw 406, resulting in shaking during pushing. At this time, when the first pushing slider 403 moves, it slides on the surface of the limiting rod 407, so that the first pushing slider 403 does not rotate along with the rotation of the second lead screw 406 during movement, and it is more stable during pushing. The upper end of the first pushing slider 403 is rotatably connected to a first pushing lead screw 404. The upper end of the sliding rod 402 is fixedly connected to a second pushing slider 408. The second pushing slider 408 is threadedly connected to the first pushing lead screw 404. When it is necessary to disassemble the sediment collection tank 2 for thorough cleaning, at this time, the pushing plate 401 will block the extraction of the sediment collection tank 2. By rotating the first pushing lead screw 404 to drive the second pushing slider 408, the sliding rod 402, and the pushing plate 401 to rise, when the sediment collection tank 2 is extracted at this time, there will be no blocking collision, and the disassembly of the sediment collection tank 2 is more convenient.

[0025] As Figure 3 and Figure 4As shown, the water surface pumping mechanism 5 includes a water pump 5011 fixedly connected to the side end of the purification tank 1. The water inlet end of the water pump 5011 is fixedly connected with a telescopic hose 5012. The circumferential surface of the telescopic hose 5012 is fixedly connected with a floating plate 5013. When it is necessary to pump out the liquid that has been precipitated and purified in the purification tank 1 for subsequent purification circulation, the water pump 5011 is started at this time. The water pump 5011 pumps the water flow in the purification tank 1 through the telescopic hose 5012. The floating plate 5013 pushes the pumping end of the telescopic hose 5012 to float, always floating on the water surface, and pumping the water liquid with less sludge. The water pump 5011 is a corrosion-resistant sludge pump, which can ensure that it is not easily damaged when contacting corrosive solutions and sludge. The telescopic hose 5012 and the floating plate 5013 are both made of corrosion-resistant polytetrafluoroethylene material. For those skilled in the art, the water pump 5011 is a prior art and will not be elaborated here. The inner wall of the purification tank 1 is fixedly connected with a limit box 5025. The floating plate 5013 is slidably matched with the inner wall of the limit box 5025. Through the limit box 5025, when the floating plate 5013 floats, it can be prevented from tipping over due to the change in water surface height and unstable buoyancy, so that the floating plate 5013 can move up and down stably and pump the water flow on the water surface. A sliding hole 5021 is opened at the side end of the limit box 5025. A synchronous slider 5022 is slidably connected to the inner wall of the sliding hole 5021. The synchronous slider 5022 is fixedly connected to the side end of the floating plate 5013. The upper end of the synchronous slider 5022 is fixedly connected with a scale 5023. The upper end of the scale 5023 movably penetrates through the upper end of the limit box 5025 and extends upward. By checking the scale on the surface of the scale 5023, the water surface height can be directly read, which is convenient for adjusting and controlling the water pumping and discharging speed. The surface of the scale 5023 has scales corresponding to the limit box 5025 and can move up and down with the floating of the floating plate 5013. The upper end of the limit box 5025 is an indicator line for checking the water surface height. A blocking rod 5024 is fixedly connected to the inner wall of the limit box 5025. The blocking rod 5024 is arranged below the floating plate 5013. Through the blocking rod 5024, the lowest position of the floating plate 5013 can be restricted to prevent a large amount of precipitated sludge from being sucked at too low a position, and to prevent the floating plate 5013 from blocking the extraction of the sediment collection box 2 when the water level is too low when taking out and cleaning the sediment collection box 2.

[0026] When the utility model is in use and the wastewater in the purification tank 1 is purified and circulated by this device, first, the wastewater is discharged into the purification tank 1, and then an alkaline sodium hydroxide solution is put into the purification tank 1 to neutralize the pH value of the solution in the neutralization tank. Then, a coagulant is put in and left standing to form a precipitate, which precipitates into the precipitation collection tank 2 for collection. At this time, the water pump 5011 is started. The water pump 5011 extracts the water flow in the purification tank 1 through the telescopic hose 5012. The floating plate 5013 slides up and down in the limit box 5025, pushing the water extraction end of the telescopic hose 5012 to float up and always float close to the water surface to extract the water liquid with less sludge. When a large amount of precipitate accumulates in the precipitation collection tank 2 and it is necessary to discharge the sediment in the precipitation collection tank 2, first, the water flow is discharged through the water extraction mechanism 5 on the water surface. At this time, the sewage discharge component 3 is opened and the driving motor 405 is started simultaneously. The driving motor 405 drives the second lead screw 406 to rotate. The second lead screw 406 pushes the first pushing slider 403, the sliding rod 402 and the pushing plate 401 to move. The pushing plate 401 pushes the sludge deposited on the lower side of the precipitation collection tank 2. The precipitation collection tank 2 is started to rotate forward and backward, and the sludge is continuously pushed to the sewage discharge component 3 for subsequent treatment. After the precipitation collection tank 2 is cleaned, the precipitation can be collected again. When it is necessary to extract the precipitation collection tank 2 for thorough cleaning, at this time, the precipitation collection tank 2 is cleaned, and there is no need to lift the whole body, which is more convenient. At the same time, the extraction height follows the movement of the water surface, reducing the amount of extracted precipitate, increasing the precipitation purification effect, and discharging water in a segmented manner up and down. Compared with the fixed drainage point on the upper side, it also makes the drainage more convenient.

[0027] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An acid pickling, phosphating and spray painting wastewater purification and recovery device, characterized in that, Including: A purification box (1), a precipitation collection box (2) is horizontally slidably connected to the lower inner wall of the purification box (1), a sewage discharge assembly (3) is installed on the side end of the purification box (1), and the sewage discharge assembly (3) is communicated with the side end of the precipitation collection box (2); A sewage pushing mechanism (4) for pushing the precipitated sludge in the precipitation collection box (2) to be discharged by the sewage discharge assembly (3) is arranged on the upper side of the precipitation collection box (2); A water surface pumping mechanism (5) for controlling the pumping height to keep the water surface pumped is arranged on one side of the purification box (1); Wherein, the water surface pumping mechanism (5) includes a water surface fitting assembly (501) arranged on one side of the purification box (1), and an auxiliary stabilizing assembly (502) is arranged on one side of the water surface fitting assembly (501).

2. The pickling, phosphating and painting wastewater purification and recovery device according to claim 1, characterized in that: The sewage pushing mechanism (4) includes a second lead screw (406) rotatably connected to the inner wall of the purification box (1), one end of the second lead screw (406) rotatably penetrates through the side end of the purification box (1) and extends outwards, a first pushing slider (403) is threadedly connected to the surface of the second lead screw (406), a sliding rod (402) is vertically slidably connected to the inner wall of the first pushing slider (403), a pushing plate (401) is fixedly connected to the lower end of the sliding rod (402), a driving motor (405) is fixedly connected to the side end of the purification box (1), and the second lead screw (406) is fixedly connected to the output end of the driving motor (405).

3. The pickling, phosphating and painting wastewater purification and recovery device according to claim 2, characterized in that: A limiting rod (407) is fixedly connected to the inner wall of one side of the purification box (1), and one end of the limiting rod (407) movably penetrates through the first pushing slider (403) and extends outwards.

4. The pickling, phosphating and painting wastewater purification and recovery device according to claim 2, characterized in that: A first pushing lead screw (404) is rotatably connected to the upper end of the first pushing slider (403), a second pushing slider (408) is fixedly connected to the upper end of the sliding rod (402), and the second pushing slider (408) is threadedly connected to the first pushing lead screw (404).

5. A pickling, phosphating and painting wastewater purification and recycling device according to claim 1, characterized in that: The water surface pumping mechanism (5) includes a water pump (5011) fixedly connected to the side end of the purification box (1), a telescopic hose (5012) is fixedly connected to the water inlet end of the water pump (5011), and a floating plate (5013) is fixedly connected to the circumferential surface of the telescopic hose (5012).

6. The pickling, phosphating and spray painting wastewater purification and recovery device according to claim 5, wherein: A limiting box (5025) is fixedly connected to the inner wall of the purification box (1), and the floating plate (5013) is slidably matched with the inner wall of the limiting box (5025).

7. A pickling, phosphating and spray painting wastewater purification and recycling device according to claim 6, characterized in that: A sliding hole (5021) is opened on the side end of the limiting box (5025), a synchronous slider (5022) is slidably connected to the inner wall of the sliding hole (5021), the synchronous slider (5022) is fixedly connected to the side end of the floating plate (5013), a scale (5023) is fixedly connected to the upper end of the synchronous slider (5022), and the upper end of the scale (5023) movably penetrates through the upper end of the limiting box (5025) and extends upwards.

8. An acid pickling, phosphating and spray painting wastewater purification and recovery device according to claim 6, characterized in that: A blocking rod (5024) is fixedly connected to the inner wall of the limiting box (5025), and the blocking rod (5024) is arranged on the lower side of the floating plate (5013).

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