Purification treatment device and method for cleaning wastewater after pickling of hot-rolled titanium plate

Abstract

The invention discloses a purification treatment device and method for cleaning wastewater after pickling of a hot-rolled titanium plate. The purification treatment device comprises a sedimentation tank, a pipeline, a neutralization mechanism and a filtering mechanism, a water inlet pipe and a second drainage pipe are arranged on the filtering mechanism, the water inlet pipe is used for wastewater transmission and drainage, the second drainage pipe is connected with the neutralization mechanism, and the pipeline is arranged between and connected with the neutralization mechanism and the sedimentation tank. According to the filtering mechanism, the filtering plates can be alternately used and replaced in time, normal operation of the filtering process is guaranteed, and then normal operation of the follow-up treatment process is guaranteed; meanwhile, a roller and a neutralizing tank are arranged in the neutralizing mechanism, a neutralizing agent in the roller is firstly mixed, and then neutralized wastewater in the roller is stirred and neutralized with wastewater in the neutralizing tank by taking neutralized wastewater in the roller as a source of the neutralizing agent; a conventional mixing mode that a neutralizing agent is added from the top of the tank and stirred in a point breaking mode is changed into a mode that neutralizing wastewater in the roller in the neutralizing tank and wastewater outside the roller are stirred and mixed in a face breaking mode, and the mixing and stirring efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of titanium plate production and processing, and particularly relates to a purification treatment device and method for cleaning waste water after hot-rolled titanium plates are pickled. Background Art

[0002] Pickling is an essential part of titanium plate production and processing; the main function of the pickling section is to remove impurities such as oxide scale produced on the surface of the titanium plate after annealing, so the pickling wastewater will contain a large amount of oxide slag; at the same time, after pickling, the titanium plate will also undergo cleaning and drying processes, and the wastewater produced by cleaning will also contain acid and oxidized impurities residues; therefore, the wastewater produced by cleaning or cleaning the titanium plate needs to be treated when discharged, and direct discharge without treatment will cause greater environmental pollution;

[0003] After searching, the prior art publication number is CN 112811674 A, which is a neutralization treatment device for pickling wastewater of hot-rolled nickel-based alloy stainless steel medium and thick plates; it includes a purification tank, a cleaning plate, a reciprocating screw, a sliding plate and an air intake pipe; in the present invention, the reciprocating screw is threadedly connected to the fixed block, so that the sliding plate can move back and forth in the slide groove inside the horizontal track during the process of the driving motor driving the reciprocating screw to rotate, and the lime inside the feed bin can be evenly sprinkled into the purification tank, thereby improving the neutralization effect of the lime on the acidic substances inside the purification tank; however, in comparison, there are application disadvantages when the filter barrel provided therein filters wastewater. First, although the cleaning plate and the brush are provided therein to clean the filter plate, the filter holes on the filter plate will still be blocked after long-term accumulation. Secondly, it is difficult to clean the filter plate again when it is seriously blocked, and it is also relatively difficult to replace the filter plate in this technology, which will greatly affect the treatment process of the subsequent process; in addition, the wastewater also has the disadvantage of flowing away with the collection tank;

[0004] After searching, it was found that a cold-rolled stainless steel annealing and pickling line wastewater treatment system with a prior art announcement number of CN 218404415 U is also suitable for cleaning and purifying the cleaning wastewater of the hot-rolled stainless steel annealing and pickling line; the system comprises a treatment box, wherein the treatment box is provided with a filter chamber, an aeration chamber, a flocculation chamber and an acid adding chamber which are interconnected; during operation, the pickling wastewater enters the filter chamber through the liquid inlet, and the large particles of impurities in the pickling wastewater can be retained in the filter chamber through the filtering effect of the filter chamber, and the filtered sewage enters the aeration chamber, and oxygen is transported through the aerator to convert the iron and manganese ions in the sewage into high-valent oxides and hydroxides, and the sewage enters the flocculation chamber for flocculation treatment; wherein the filtering process is completed through the filter chamber in the filter chamber; since the wastewater contains more impurities, the filter chamber is easily blocked, and there is no technical means for clearing the filter chamber in the technical solution, so it will affect the subsequent treatment process and process after the blockage occurs and cannot be cleared in time, thereby reducing the treatment efficiency and effect of the wastewater;

[0005] In response to the above problems, the present invention provides a purification device and method for cleaning wastewater after pickling, which can promptly replace the filter plate during the continuous and uninterrupted filtration of the wastewater to ensure the filtration effect and further ensure the normal progress of the subsequent cleaning process. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a purification treatment device and method for cleaning waste water after pickling of hot-rolled titanium plates, wherein the filtering mechanism can alternately use and timely replace filter plates to ensure the normal progress of the filtering process, and then ensure the normal progress of the subsequent treatment process; at the same time, a roller and a neutralization tank are set in the neutralization mechanism, and the neutralizer in the roller is first mixed, and then the neutralized wastewater in the roller is used as the source of the neutralizer to be stirred and neutralized with the wastewater in the neutralization tank, and the conventional neutralizer is added from the top and stirred to mix in a point-breaking manner, which is changed to a surface-breaking manner in which the neutralized wastewater in the roller in the neutralization tank is stirred and mixed with the wastewater outside the roller, which greatly improves the mixing and stirring efficiency, and thus improves the neutralization efficiency.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A purification treatment device and method for cleaning wastewater after hot-rolled titanium plates are pickled, comprising a sedimentation tank, a pipeline, a neutralization mechanism, and a filtering mechanism; the filtering mechanism is provided with a water inlet pipe and a second drainage pipe, the water inlet pipe is used for wastewater transmission and drainage, the second drainage pipe is connected to the neutralization mechanism, and the pipeline is arranged between the neutralization mechanism and the sedimentation tank and connected to each other; the wastewater is first filtered through the filtering mechanism, then enters the neutralization mechanism for neutralization reaction, and finally enters the sedimentation tank for standing, and then the supernatant is discharged and the sediment is cleaned.

[0009] The filter mechanism comprises a filter box, with replacement ports on both sides of the filter box, and plug-in sealing plates are provided at the replacement ports for opening and closing the replacement ports; a partition is provided inside the filter box, and slide rails are provided on both sides of the partition, and the slide rails are arranged on the inner wall of the filter box, and the slide rails are used to plug and support the filter plate; hook plates are provided on both sides of the partition, and the hook plates are provided with a first through groove; a second gear and a top plate are also provided on both sides of the partition, and the partition is rotatably connected to the second gear, a shaft sleeve is provided on one side of the second gear, and a spline shaft is provided on one side of the top plate, and the spline shaft is slidably connected to the shaft sleeve, and the two can slide against each other and the end of the spline shaft is provided with The limit block allows a fixed sliding stroke between the two to prevent the spline shaft from slipping off the sleeve. A third spring is provided between the second gear and the top plate, and the third spring is sleeved on the spline shaft and the sleeve. A hook block is provided on the top plate, and the hook block can contact the hook plate after rotation. An adjusting rod that is rotatably connected to each other is provided at the bottom of the hook plate, and a first gear is provided at one end of the adjusting rod, which is arranged at the through groove and meshes with the second gear, and the other end of the adjusting rod is rotatably connected to the filter box. The second gear is driven to rotate by rotating the adjusting rod, thereby driving the top plate to rotate, so that the hook block hooks the hook plate or releases the hooking state.

[0010] A guide plate is arranged above the partition, and pins are arranged at both ends of the guide plate and are rotatably connected to the filter box; a second motor is arranged on the outer wall of the filter box, and the output shaft of the second motor is connected to the pin on the guide plate, and the rotation of the guide plate is controlled by the second motor.

[0011] The neutralization mechanism includes a neutralization tank, a reagent tank is provided on the top of the neutralization tank, and a dosing pipe is provided on the reagent tank; the top of the neutralization tank is connected to a second drainage pipe; the bottom of the neutralization tank is connected to a pipeline, and a second water pump is provided on the pipeline; a main shaft is provided inside the neutralization tank, the main shaft is hollow, both ends of the main shaft are rotatably connected to the neutralization tank, the top of the main shaft is arranged in the reagent tank, and a third water pump is provided on the top of the main shaft for supplying neutralizing reagent to the hollow main shaft; a through pipe and a support arm are provided on the main shaft; a first through port is provided on the through pipe; a first rotatably connected stirring shaft is provided on the support arm, and rotatably connected rollers are provided between the through pipes; the neutralizing reagent in the reagent tank is composed of the following raw materials in parts by weight: 5-6 parts by weight of methanol, 6-8 parts by weight of dimethyl silicone oil, 2-4 parts by weight of polyethylene polyamine, 40-45 parts by weight of lime, and 30-45 parts by weight of solvent, which are mixed with each other to form a solution.

[0012] The first stirring shaft is provided with stirring blades.

[0013] A rotating shaft is provided inside the roller, the rotating shaft is hollow, a second opening is provided at the top of the rotating shaft, the second opening is provided in the through pipe and is interconnected; a nozzle is provided on the rotating shaft, and two sections of reciprocating threads are provided on the outer wall of the rotating shaft; a sliding groove is provided on the inner wall of the roller; a plurality of openings are provided on the roller, a rotatably connected sealing plate is provided at the opening, and a fan plate is provided on the sealing plate; an oblique angle is provided at the opening to expand the rotation angle of the fan plate.

[0014] A pair of second stirring shafts and a pair of stirring frames are arranged inside the roller; the stirring frames are arranged on the reciprocating threaded section and connected to the rotating shaft through threads, the stirring frames include a fixed frame, a sliding block is arranged on the fixed frame, the sliding block is arranged in the slide groove, and a rotatably connected stirring blade is arranged in the fixed frame; a first motor is arranged at the bottom end of the main shaft to provide power for it, and the first motor is fixed to the bottom of the neutralization tank through a motor seat; the main shaft is driven to rotate by the first motor, thereby driving the roller and the first stirring shaft to rotate with the main shaft as the axis.

[0015] A second gear ring is also provided in the neutralization tank and fixedly connected to the inner wall of the neutralization tank; a gear is provided at the top of the first stirring shaft and meshes with the second gear ring; a gear is provided at the top of the rotating shaft and meshes with the second gear ring.

[0016] The through pipe is provided with a first gear ring; the top end of the second stirring shaft is provided with a gear which meshes with the first gear ring.

[0017] A sewage removal port is provided at the bottom of the sedimentation tank, a support frame is provided on one side of the sedimentation tank for supporting and fixing the pipeline, and a first drainage pipe and a support frame for supporting and fixing the same are provided on the other side; a first water pump is provided on the first drainage pipe; a telescopic pipe is provided at one end of the first drainage pipe to adjust the depth of the drainage pipe into the sedimentation tank.

[0018] A transparent observation port is provided on the side wall of the filter box to facilitate observation of the accumulation of filtered impurities on the filter plate in the filter box.

[0019] A treatment method of a purification treatment device for cleaning wastewater after hot-rolled titanium plate pickling, the specific steps are as follows:

[0020] 1) Transmission of clean wastewater: The clean wastewater is first transmitted into the filter box of the filter mechanism through the water inlet pipe; then the clean wastewater is guided by the guide plate and then flows through the filter plate for filtration; when there are many impurities on the filter plate, the guide plate is driven by the second motor to rotate to the other side, changing the flow direction of the clean wastewater so that it flows through the filter plate on the other side; the flow direction of the clean wastewater is changed by rotating the guide plate, thereby realizing the effect of alternating the use of the filter plates, thereby achieving the effect of continuous filtration of the clean wastewater.

[0021] 2) Quick replacement of filter plates: observe the accumulation of impurities on the filter plates inside the filter box through the observation port. When the filter plates filter more impurities, they can be quickly replaced. First, pull out the sealing plate to open the replacement port; then turn the adjusting rod to drive the second gear and the shaft sleeve to rotate, thereby driving the spline shaft and the top plate to rotate, so that the hook block is separated from the hooked state between the hook plate, and then pushed out by the third spring, and then the filter plate is pushed out of the replacement port for a distance under the push of the top plate to facilitate the collection of the filter plate; when installing the filter plate, push the filter box along the replacement port and the slide rail, push the top plate to reset and return to the side of the hook plate, and then turn the adjusting rod to rotate the spline shaft and the top plate, so that the hook plate and the hook block are hooked and limited to each other to prevent the top plate from being pushed out by the third spring; then plug in the sealing plate to block the replacement port.

[0022] 3) Neutralization of cleaned wastewater: After cleaning, the wastewater is transferred to the neutralization tank through the second drainage pipe for neutralization;

[0023] S1: The neutralizing agent in the agent tank is supplied to the main shaft through the action of the third water pump. The neutralizing agent passes through the main shaft, the through pipe, the rotating shaft, and then is sprayed out through the nozzle. The third water pump provides power to spray the neutralizing agent along the nozzle; then the main shaft is driven to rotate by the first motor, thereby driving the roller and the second stirring shaft to rotate with the main shaft as the axis; the roller and the second stirring shaft are caused to rotate by the arrangement of the first gear ring and the second gear ring; at this time, the fan plate is subjected to the resistance of the water flow so that the sealing plate closes the opening on the roller, so that the neutralizing agent is first mixed with the wastewater in the roller; at the same time, the stirring frame reciprocates up and down along the slider to improve the mixing efficiency;

[0024] S2: After the roller rotates as required, the first motor drives it to reverse, and the fan plate rotates under the resistance of the water flow to open the opening on the roller, so that the neutralizing agent and wastewater evenly mixed in the roller flow out through the opening into the neutralization tank to mix with the wastewater as a whole;

[0025] According to the tooth ratio setting of the first gear ring and the second gear ring, the speed ratio of the roller and the second stirring shaft is 1:3; further, the speed of the main shaft is set to 45-60r / min; the mixing time is 25-35min, and then the pH value is tested by sampling through the sampling port; determine whether the neutralization effect is met, if not, continue mixing or add chemicals, and if it is met, transfer the wastewater to the sedimentation tank.

[0026] 4) Transfer and sedimentation of neutralized wastewater: The wastewater mixed with the neutralizing agent flows into the sedimentation tank through the pipeline, and then is allowed to settle; the supernatant of the neutralized wastewater after sedimentation is discharged from the first drain pipe, and the impurities after sedimentation are discharged and cleaned from the sewage removal port; the sedimentation time is set to 45-70min.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1) The present invention is provided with a filtering mechanism that can continuously filter the clean wastewater; first, a pair of filter plates are symmetrically arranged on both sides of the partition plate and cooperate with a rotatable guide plate. After the guide plate rotates to change the guide direction, the filter plates can be used alternately and replaced, and when the filter plates are replaced, it can also ensure that the clean wastewater can be continuously filtered;

[0029] Secondly, when replacing the filter plate, after opening the replacement port, it is only necessary to rotate the adjusting rod to rotate the first gear and the second gear, thereby driving the top plate to rotate, so that the top plate rotates to a horizontal level and causes the hook plate and the hook block to release the hooking state between each other, and then, under the push of the third spring, the top block quickly pushes the filter plate out of the replacement port for a distance, which is helpful for collecting the filter plate and avoids the disadvantage that the filter plate is completely in the filter box and cannot be quickly removed;

[0030] When replacing a new filter plate, you only need to insert the filter plate into the filter box along the slide rail, so that the filter plate pushes the top plate, resets the top plate and pushes it back into the hook plate, then turn the adjustment rod to rotate the top plate, so that the hook plate hooks the hook block again; then plug the sealing plate into the replacement port to complete the replacement of the filter plate. This method is fast and convenient, and greatly improves the replacement efficiency;

[0031] 2) The neutralization mechanism is provided with a main shaft, a roller, and a first stirring shaft. The roller is provided with a rotating shaft, a second stirring shaft, and a stirring frame. The neutralization agent can be sprayed out by the nozzle on the rotating shaft through the third water pump. Because the nozzle is provided on the rotating shaft body, the neutralization agent can be transmitted to the upper layer, middle layer, and bottom layer of the roller at the first time, so as to achieve relatively uniform fixed-point delivery. Then, the wastewater and the neutralization agent in the roller can be quickly stirred and mixed through the revolution and rotation of the rotating shaft and the mixing of the second stirring shaft and the stirring frame. Compared with the wastewater outside the roller, a relatively large source of neutralization agent can be formed.

[0032] Furthermore, when the main shaft is reversed, the sealing plate will rotate under the action of the fan plate to open the opening on the roller, so that the evenly mixed wastewater in the roller flows out to be mixed and neutralized again with the wastewater outside the roller. Compared with the conventional method of adding neutralizing agents at one time, the present invention first stirs and neutralizes the wastewater in the roller, and then uses the wastewater in the roller as the neutralization source to stir and neutralize it again with the wastewater outside the roller. In comparison, the source of the agent is relatively expanded, and it can be quickly distributed in the wastewater at different levels in the neutralization tank, thereby improving the neutralization efficiency of stirring to make it uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Attached Figure 1 It is a schematic structural diagram of a purification treatment device and method for cleaning waste water after hot-rolled titanium plate pickling according to the present invention;

[0034] Attached Figure 2 It is a schematic diagram of the temporal structure of the Zhonghe jar;

[0035] Attached Figure 3 It is a schematic diagram of the structure of the roller;

[0036] Attached Figure 4 It is a schematic diagram of the structure inside the roller;

[0037] Attached Figure 5 It is a top view of the internal structure of the roller;

[0038] Attached Figure 6 The internal structure of the filter box Figure 1 ;

[0039] Attached Figure 7 The internal structure of the filter box Figure 2 ;

[0040] In the figure: 1, sedimentation tank; 11, sewage removal port; 12, support frame; 13, first drainage pipe; 14, telescopic pipe; 15, first water pump; 2, pipeline; 21, second water pump;

[0041] 3. Neutralization mechanism; 31. Medicament tank; 311. Dosing tube; 32. Neutralization tank; 33. Main shaft; 331. Third water pump; 332. Through pipe; 3321. First through port; 3322. First gear ring; 333. Support arm; 34. Roller; 3401. Slide; 341. Opening; 3411. Bevel; 342. Closing plate; 3421. Fan plate; 343. Rotating shaft; 3431. Second through port; 3432. Spout; 35. Second gear ring; 36. First stirring shaft; 37. First motor; 371. Motor seat; 38. Stirring frame; 381. Fixed frame; 382. Sliding block; 383. Stirring blade; 39. Second stirring shaft; 310. Sampling port;

[0042] 4. Filter mechanism; 401. Second drain pipe; 402. Replacement port; 403. Slide rail; 404. Filter box; 405. Observation port;

[0043] 41. partition plate; 411. hook plate; 412. through groove; 42. guide plate; 43. second motor;

[0044] 44, adjusting rod; 441, first gear; 45, top plate; 451, spline shaft; 452, hook block;

[0045] 46. ​​Second gear; 461. Bushing; 47. Third spring; 5. Water inlet pipe; 6. Filter plate. DETAILED DESCRIPTION

[0046] To facilitate the understanding of those skilled in the art, Figure 1-7 , the technical solution of the present invention is further specifically described.

[0047] A purification treatment device and method for cleaning wastewater after hot-rolled titanium plate pickling, comprising a sedimentation tank 1, a pipeline 2, a neutralization mechanism 3, and a filtering mechanism 4; the filtering mechanism 4 is provided with a water inlet pipe 5 and a second drain pipe 401, the water inlet pipe 5 is used for wastewater transmission and drainage, the second drain pipe 401 is connected to the neutralization mechanism 3, and the pipeline 2 is arranged between the neutralization mechanism 3 and the sedimentation tank 1 and connected to each other; the wastewater is first filtered through the filtering mechanism 4, then enters the neutralization mechanism 3 for neutralization reaction, and finally enters the sedimentation tank 1 for standing, and then the supernatant is discharged and the sediment is cleaned.

[0048] The filtering mechanism 4 includes a filter box 404, with replacement ports 402 on both sides of the filter box 404, and plug-in sealing plates are provided at the replacement ports 402 for opening and closing the replacement ports 402; a partition 41 is provided inside the filter box 404, and slide rails 403 are provided on both sides of the partition 41, and the slide rails 403 are arranged on the inner wall of the filter box 404, and the slide rails 403 are used to plug and support the filter plate 6; hook plates 411 are provided on both sides of the partition 41, and a first through groove 412 is provided on the hook plate 411; a second gear 46 and a top plate 45 are also provided on both sides of the partition 41, and the second gear 46 is rotatably connected to the partition 41, and a shaft sleeve 461 is provided on one side of the second gear 46, and a spline shaft 451 is provided on one side of the top plate 45, and the spline shaft 451 is slidably connected to the shaft sleeve 461, and the two can slide with each other and the spline shaft 45 A stop block is provided at the end of the second gear 46 so that there is a fixed sliding stroke between the two to prevent the spline shaft 451 from slipping off the sleeve 461. A third spring 47 is provided between the second gear 46 and the top plate 45, and the third spring 47 is sleeved on the spline shaft 451 and the sleeve 461; a hook block 452 is provided on the top plate 45, and the hook block 452 can contact with the hook plate 411 after rotation; an adjusting rod 44 is provided at the bottom of the hook plate 411, and a first gear 441 is provided at one end of the adjusting rod 44, and the first gear 441 is arranged at the through groove 412 and meshes with the second gear 46, and the other end of the adjusting rod 44 is rotatably connected to the filter box 404; the second gear 46 is driven to rotate by rotating the adjusting rod 44, thereby driving the top plate 45 to rotate, so that the hook block 452 hooks the hook plate 411 or releases the hooking state.

[0049] A guide plate 42 is provided above the partition 41, and pins are provided at both ends of the guide plate 42 and are rotatably connected to the filter box 404; a second motor 43 is provided on the outer wall of the filter box 404, and the output shaft of the second motor 43 is connected to the pin on the guide plate 42, and the rotation of the guide plate 42 is controlled by the second motor 43.

[0050] The neutralization mechanism 3 includes a neutralization tank 32, a medicine tank 31 is provided on the top of the neutralization tank 32, and a medicine adding pipe 311 is provided on the medicine tank 31; the top of the neutralization tank 32 is connected to the second drainage pipe 401; the bottom of the neutralization tank 32 is connected to the pipeline 2, and the pipeline 2 is provided with a second water pump 21; a main shaft 33 is provided inside the neutralization tank 32, and the main shaft 33 is hollow, and both ends of the main shaft 33 are rotatably connected to the neutralization tank 32, the top of the main shaft 33 is arranged in the medicine tank 31, and the top of the main shaft 33 is provided with a third water pump 331 for pumping the hollow main shaft 33 Supply neutralizing agent; the main shaft 33 is provided with a through pipe 332 and a support arm 333; the through pipe 332 is provided with a first through port 3321; the support arm 333 is provided with a rotatably connected first stirring shaft 36, and a rotatably connected roller 34 is provided between the through pipes 332; the neutralizing agent in the agent tank 31 is composed of the following raw materials in parts by weight: 5-6 parts by weight of methanol, 6-8 parts by weight of dimethyl silicone oil, 2-4 parts by weight of polyethylene polyamine, 40-45 parts by weight of lime, and 30-45 parts by weight of solvent, which are mixed with each other to form a solution.

[0051] The first stirring shaft 36 is provided with stirring blades.

[0052] A rotating shaft 343 is provided inside the roller 34, and the rotating shaft 343 is hollow. A second opening 3431 is provided at the top of the rotating shaft 343, and the second opening 3431 is provided in the through pipe 332 and interconnected with each other; a nozzle 3432 is provided on the rotating shaft 343, and two sections of reciprocating threads are provided on the outer wall of the rotating shaft 343; a sliding groove 3401 is provided on the inner wall of the roller 34; a plurality of openings 341 are provided on the roller 34, and a rotatably connected sealing plate 342 is provided at the opening 341, and a fan plate 3421 is provided on the sealing plate 342; an angle 3411 is provided at the opening 341 to expand the rotation angle of the fan plate 3421.

[0053] A pair of second stirring shafts 39 and a pair of stirring frames 38 are provided inside the roller 34; the stirring frame 38 is arranged on the reciprocating thread section and is connected to the rotating shaft 343 through a thread, and the stirring frame 38 includes a fixed frame 381, on which a slider 382 is provided, and the slider 382 is arranged in the slide groove 3401, and a stirring blade 383 connected in rotation is provided in the fixed frame 381; the bottom end of the main shaft 33 is provided with a first motor 37 for providing power therefor, and the first motor 37 is fixed to the bottom of the neutralization tank 32 through a motor seat 371; the main shaft 33 is driven to rotate by the first motor 37, thereby driving the roller 34 and the first stirring shaft 36 to rotate with the main shaft 33 as the axis.

[0054] A second gear ring 35 is also provided in the neutralization tank 32 and fixedly connected to the inner wall of the neutralization tank 32 ; a gear is provided at the top of the first stirring shaft 36 and meshes with the second gear ring 35 ; a gear is provided at the top of the rotating shaft 343 and meshes with the second gear ring 35 .

[0055] The through pipe 332 is provided with a first gear ring 3322 ; the top end of the second stirring shaft 39 is provided with a gear that meshes with the first gear ring 3322 .

[0056] A sewage removal port 11 is provided at the bottom of the sedimentation tank 1, a support frame 12 is provided on one side of the sedimentation tank 1 for supporting and fixing the pipeline 2, and a first drainage pipe 13 and a support frame 12 for supporting and fixing it are provided on the other side; a first water pump 15 is provided on the first drainage pipe 13; a telescopic pipe 14 is provided at one end of the first drainage pipe 13 to adjust the depth of the drainage pipe 1.

[0057] A transparent observation port 405 is provided on the side wall of the filter box 404 to facilitate observation of the accumulation of filtered impurities on the filter plate 6 in the filter box 404 .

[0058] A treatment method of a purification treatment device for cleaning wastewater after hot-rolled titanium plate pickling, the specific steps are as follows:

[0059] 1) Transmission of clean waste water: The clean waste water is first transmitted through the water inlet pipe 5 into the filter box 404 of the filter mechanism 4; then the clean waste water is guided by the guide plate 42 and then flows through the filter plate 6 for filtration; when there are many impurities on the filter plate 6, the second motor 43 drives the guide plate 42 to rotate to the other side, changing the flow direction of the clean waste water so that it flows through the filter plate 6 on the other side; the flow direction of the clean waste water is changed by rotating the guide plate 42, thereby realizing the effect of alternating use of the filter plate 6, so as to achieve the effect of continuous filtration of the clean waste water.

[0060] 2) Rapid replacement of filter plates: observe the accumulation of impurities on the filter plate 6 inside the filter box 404 through the observation port 405. When the filter plate 6 filters a lot of impurities, it can be quickly replaced. First, pull out the sealing plate to open the replacement port 402; then rotate the adjustment rod 44 to drive the second gear 46 and the shaft sleeve 461 to rotate, thereby driving the spline shaft 451 and the top plate 45 to rotate, so that the hook block 452 is separated from the hooking state between the hook plate 411, and then pushed out by the third spring 47, and then enter. The filter plate 6 is pushed out of the replacement port 402 for a distance under the push of the top plate, so as to facilitate the collection of the filter plate 6; when installing the filter plate, it is pushed into the filter box 404 along the replacement port 402 and the slide rail 403, and the top plate 45 is pushed back to the side of the hook plate 411, and then the adjusting rod 44 is rotated to rotate the spline shaft 451 and the top plate 45, so that the hook plate 411 and the hook block 452 are hooked and limited to each other, preventing the top plate 45 from being pushed out by the third spring 47; and then the sealing plate is inserted to block the replacement port 402.

[0061] 3) Neutralization of cleaned wastewater: After cleaning, the wastewater is transferred to the neutralization tank 32 through the second drainage pipe 401 for neutralization;

[0062] S1: The neutralizing agent in the agent tank 31 is supplied to the main shaft 33 through the action of the third water pump 331. The neutralizing agent passes through the main shaft 33, the through pipe 332, and the rotating shaft 343 in sequence, and then is sprayed out through the nozzle 3432. The third water pump 331 provides power to spray the neutralizing agent along the nozzle 3432; then the main shaft 33 is driven to rotate by the first motor 37, and then the roller 34 and the second stirring shaft 39 are driven to rotate with the main shaft 33 as the axis; the roller 34 and the second stirring shaft 39 are caused to rotate by the arrangement of the first gear ring 3322 and the second gear ring 35; at this time, the fan plate 3421 is subjected to the resistance of the water flow so that the sealing plate 342 closes the opening 341 on the roller 34, so that the neutralizing agent is first mixed with the wastewater in the roller 34; at the same time, the stirring frame 38 reciprocates up and down along the slider 382 to improve the mixing efficiency.

[0063] S2: After the roller 34 rotates as required, the first motor 37 drives it to reverse, and the fan plate 3421 rotates under the resistance of the water flow to open the opening on the roller 34, so that the neutralization agent and wastewater evenly mixed in the roller 34 flow out along the opening 341 into the neutralization tank 32 to be mixed with the wastewater as a whole.

[0064] According to the tooth ratio setting of the first gear ring 3322 and the second gear ring 35, the speed ratio of the roller 34 and the second stirring shaft 39 is 1:3; further, the speed of the main shaft 33 is set to 45-60r / min; the mixing time is 25-35min, and then the pH value is tested by sampling through the sampling port 310; determine whether the neutralization effect is met, if not, continue mixing or add reagents, if satisfied, transfer the wastewater to the sedimentation tank 1.

[0065] 4) Transfer and sedimentation of neutralized wastewater: The wastewater mixed with the neutralizing agent flows through the pipe 2 into the sedimentation tank 1, and then is allowed to settle; the supernatant of the neutralized wastewater after sedimentation is discharged from the first drain pipe 13, and the impurities after sedimentation are discharged and cleaned from the decontamination port 11; the sedimentation time is set to 45-70 minutes.

[0066] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0067] In summary, electronic or electrical components including but not limited to electric push rods, motors, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections or electrical connections in the prior art, which are not within the scope of protection of the present invention;

[0068] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A purification treatment device and method for cleaning wastewater after pickling of hot-rolled titanium plates, comprising a sedimentation tank, a pipeline, a neutralization mechanism, and a filtering mechanism; the filtering mechanism is provided with a water inlet pipe and a second drainage pipe, the water inlet pipe is used for wastewater transmission and drainage, the second drainage pipe is connected to the neutralization mechanism, and the pipeline is arranged between the neutralization mechanism and the sedimentation tank and connected to each other; the wastewater is first filtered through the filtering mechanism, then enters the neutralization mechanism for neutralization reaction, and finally enters the sedimentation tank for standing, and then the supernatant is discharged and the sediment is cleaned; Features The filter mechanism comprises a filter box, with replacement ports on both sides of the filter box, and plug-in sealing plates are provided at the replacement ports for opening and closing the replacement ports; a partition is provided inside the filter box, and slide rails are provided on both sides of the partition, and the slide rails are arranged on the inner wall of the filter box, and the slide rails are used to plug and support the filter plate; hook plates are provided on both sides of the partition, and the hook plates are provided with a first through groove; a second gear and a top plate are also provided on both sides of the partition, and the partition is rotatably connected to the second gear, a shaft sleeve is provided on one side of the second gear, and a spline shaft is provided on one side of the top plate, and the spline shaft is slidably connected to the shaft sleeve, and the two can slide against each other and the end of the spline shaft is provided with The limit block allows a fixed sliding stroke between the two to prevent the spline shaft from slipping off the sleeve. A third spring is provided between the second gear and the top plate, and the third spring sleeves the spline shaft and the sleeve. A hook block is provided on the top plate, and the hook block can contact the hook plate after rotation. An adjusting rod that is rotatably connected to each other is provided at the bottom of the hook plate, and a first gear is provided at one end of the adjusting rod, and the first gear is provided at the through groove and meshes with the second gear, and the other end of the adjusting rod is rotatably connected to the filter box. The second gear is driven to rotate by rotating the adjusting rod, thereby driving the top plate to rotate, so that the hook block hooks the hook plate or releases the hooking state. A guide plate is arranged above the partition, and pins are arranged at both ends of the guide plate and are rotatably connected to the filter box; a second motor is arranged on the outer wall of the filter box, and the output shaft of the second motor is connected to the pin on the guide plate, and the rotation of the guide plate is controlled by the second motor.

2. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 1 is characterized in that The neutralization mechanism comprises a neutralization tank, a reagent tank is arranged on the top of the neutralization tank, a dosing pipe is arranged on the reagent tank; the top of the neutralization tank is connected to a second drain pipe; the bottom of the neutralization tank is connected to a pipeline, and a second water pump is arranged on the pipeline; a main shaft is arranged inside the neutralization tank, the main shaft is hollow, both ends of the main shaft are rotatably connected to the neutralization tank, the top of the main shaft is arranged in the reagent tank, and a third water pump is arranged on the top of the main shaft for supplying neutralizing reagent to the hollow main shaft; a through pipe and a support arm are arranged on the main shaft; a first through port is arranged on the through pipe; a rotatably connected first stirring shaft is arranged on the support arm, and rotatably connected rollers are arranged between the through pipes; the neutralizing reagent in the reagent tank is composed of the following raw materials in parts by weight: 5-6 parts by weight of methanol, 6-8 parts by weight of dimethyl silicone oil, 2-4 parts by weight of polyethylene polyamine, 40-45 parts by weight of lime, and 30-45 parts by weight of solvent, which are mixed with each other to form a solution; The first stirring shaft is provided with stirring blades.

3. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 2 is characterized in that A rotating shaft is provided inside the roller, the rotating shaft is hollow, a second opening is provided at the top of the rotating shaft, the second opening is provided in the through pipe and is interconnected; a nozzle is provided on the rotating shaft, and two sections of reciprocating threads are provided on the outer wall of the rotating shaft; a sliding groove is provided on the inner wall of the roller; a plurality of openings are provided on the roller, a rotatably connected sealing plate is provided at the opening, and a fan plate is provided on the sealing plate; an oblique angle is provided at the opening to expand the rotation angle of the fan plate.

4. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 2, characterized in that A pair of second stirring shafts and a pair of stirring frames are arranged inside the roller; the stirring frames are arranged on the reciprocating threaded section and connected to the rotating shaft through threads, the stirring frames include a fixed frame, a sliding block is arranged on the fixed frame, the sliding block is arranged in the slide groove, and a rotatably connected stirring blade is arranged in the fixed frame; a first motor is arranged at the bottom end of the main shaft to provide power for it, and the first motor is fixed to the bottom of the neutralization tank through a motor seat; the main shaft is driven to rotate by the first motor, thereby driving the roller and the first stirring shaft to rotate with the main shaft as the axis.

5. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 2 is characterized in that A second gear ring is also provided in the neutralization tank and fixedly connected to the inner wall of the neutralization tank; a gear is provided at the top of the first stirring shaft and meshes with the second gear ring; a gear is provided at the top of the rotating shaft and meshes with the second gear ring.

6. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 2 is characterized in that The through pipe is provided with a first gear ring; the top end of the second stirring shaft is provided with a gear which meshes with the first gear ring.

7. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 1, characterized in that The bottom of the sedimentation tank is provided with a decontamination port, one side of the sedimentation tank is provided with a support frame for supporting and fixing the pipeline, and the other side is provided with a first drainage pipe and a support frame for supporting and fixing the first drainage pipe; a first water pump is provided on the first drainage pipe; one end of the first drainage pipe is provided with a telescopic pipe to adjust the depth of the drainage pipe into the sedimentation tank; A transparent observation port is provided on the side wall of the filter box to facilitate observation of the accumulation of filtered impurities on the filter plate in the filter box.

8. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 1 is characterized in that: The specific steps are as follows: 1) Transmission of clean wastewater: The clean wastewater is first transmitted through the water inlet pipe into the filter box of the filter mechanism; then the clean wastewater is guided by the guide plate and then flows through the filter plate for filtration; when there are many impurities on the filter plate, the guide plate is driven by the second motor to rotate to the other side, changing the flow direction of the clean wastewater so that it flows through the filter plate on the other side; the flow direction of the clean wastewater is changed by the rotation of the guide plate, thereby achieving the effect of alternating the use of the filter plates, so as to achieve the effect of continuous filtration of the clean wastewater; 2) Quick replacement of filter plates: observe the accumulation of impurities on the filter plates inside the filter box through the observation port. When the filter plates filter more impurities, they can be quickly replaced. First, pull out the sealing plate to open the replacement port; then turn the adjusting rod to drive the second gear and the shaft sleeve to rotate, thereby driving the spline shaft and the top plate to rotate, so that the hook block is separated from the hooked state between the hook plate, and then pushed out by the third spring, and then the filter plate is pushed out of the replacement port for a distance under the push of the top plate, so as to facilitate the collection of the filter plate; when installing the filter plate, push the filter box along the replacement port and the slide rail, push the top plate to reset and return to the side of the hook plate, and then turn the adjusting rod to rotate the spline shaft and the top plate, so that the hook plate and the hook block are mutually hooked and limited, preventing the top plate from being pushed out by the third spring; then plug in the sealing plate to block the replacement port; 3) Neutralization of cleaned wastewater: After cleaning, the wastewater is transferred to the neutralization tank through the second drainage pipe for neutralization; 4) Transfer and sedimentation of neutralized wastewater: The wastewater mixed with the neutralizing agent flows into the sedimentation tank through the pipeline, and then is allowed to settle; the supernatant of the neutralized wastewater after sedimentation is discharged from the first drain pipe, and the impurities after sedimentation are discharged and cleaned from the sewage removal port; the sedimentation time is set to 45-70min.

9. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 8, characterized in that Step 3) is divided into two steps; S1: The neutralizing agent in the agent tank is supplied to the main shaft through the action of the third water pump. The neutralizing agent passes through the main shaft, the through pipe, the rotating shaft, and then is sprayed out through the nozzle. The third water pump provides power to spray the neutralizing agent along the nozzle; then the main shaft is driven to rotate by the first motor, thereby driving the roller and the second stirring shaft to rotate with the main shaft as the axis; the roller and the second stirring shaft are caused to rotate by the arrangement of the first gear ring and the second gear ring; at this time, the fan plate is subjected to the resistance of the water flow so that the sealing plate closes the opening on the roller, so that the neutralizing agent is first mixed with the wastewater in the roller; at the same time, the stirring frame reciprocates up and down along the slider to improve the mixing efficiency; S2: After the roller rotates as required, the first motor drives it to reverse, and the fan plate rotates under the resistance of the water flow to open the opening on the roller, so that the neutralizing agent and wastewater evenly mixed in the roller flow out along the opening into the neutralization tank to mix with the wastewater as a whole.

10. The device and method for purifying waste water after pickling of hot-rolled titanium plates according to claim 8, characterized in that In step 3), according to the tooth ratio of the first gear ring and the second gear ring, the speed ratio of the roller and the second stirring shaft is set to 1:3; further, the speed of the main shaft is set to 45-60r / min; the mixing time is 25-35min, and then the pH value is tested by sampling through the sampling port; determine whether the neutralization effect is met, if not, continue mixing or add reagents, and if it is met, transfer the wastewater to the sedimentation tank.

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