Thallium removal all-in-one machine

Abstract

The utility model discloses a thallium removal all-in-one machine which comprises a first reaction tank, a second reaction tank, a third reaction tank, a fourth reaction tank and a sedimentation tank, the first reaction tank is provided with a first dosing pipe and a water inlet pipe, the second reaction tank is communicated with the first reaction tank, the second reaction tank is provided with a second dosing pipe, and the third reaction tank is communicated with the second reaction tank. The third reaction tank is provided with a third dosing pipe, the fourth reaction tank is communicated with the third reaction tank, the fourth reaction tank is provided with a fourth dosing pipe, the sedimentation tank is communicated with the fourth reaction tank, the bottom end of the sedimentation tank is provided with a sludge discharge pipe, the sludge discharge pipe is provided with a pump machine, and the sludge discharge pipe is connected with a sludge outlet pipe and a sludge return pipe communicated with the fourth reaction tank. And the pump machine is used for discharging sludge in the sludge discharge pipe through the sludge outlet pipe and / or returning the sludge to the fourth reaction tank through the sludge return pipe. The thallium removal all-in-one machine is convenient to operate, high in treatment efficiency, high in integration degree, convenient to transport and install, smaller in occupied area and lower in cost, and is integrated equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial wastewater treatment, in particular to an integrated thallium removal machine. Background Art

[0002] Industrial wastewater from the lithium battery industry contains thallium, which can be absorbed by the human body and damage human health. Therefore, thallium needs to be removed during wastewater treatment. In the prior art, the treatment methods for thallium-containing industrial wastewater mainly include chemical precipitation, electrocoagulation, adsorption, ion exchange, biological reaction, etc. Although these methods can reduce the concentration of thallium in industrial wastewater, they can only remove thallium from industrial wastewater with a relatively single pollution source and a relatively simple composition. For industrial wastewater from the lithium battery industry with multiple pollution sources and complex compositions, it is necessary to use multiple devices with different methods to remove thallium, which is not only cumbersome to operate, but also has low treatment efficiency. In addition, the transportation and installation of multiple devices are cumbersome, occupying a large area and high cost. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an integrated thallium removal machine, which is more convenient to operate and has higher processing efficiency when removing thallium from industrial wastewater. Moreover, the integrated thallium removal machine is an integrated device with a high degree of integration, convenient transportation and installation, smaller footprint and lower cost.

[0004] According to the embodiment of the utility model, the thallium removal integrated machine includes a first reaction tank, a second reaction tank, a third reaction tank, a fourth reaction tank and a sedimentation tank. The first reaction tank is provided with a first dosing pipe and a water inlet pipe. The first dosing pipe is used to input a pH adjuster into the first reaction tank. The second reaction tank is connected to the first reaction tank. The second reaction tank is provided with a second dosing pipe. The second dosing pipe is used to input a stabilizer into the second reaction tank. The third reaction tank is connected to the second reaction tank. The third reaction tank is provided with a third dosing pipe. The third dosing pipe is used to input a coagulant into the third reaction tank. The fourth reaction tank is connected to the third reaction tank. The fourth reaction tank is provided with a fourth dosing pipe. The fourth dosing pipe is used to input a flocculant into the fourth reaction tank. The sedimentation tank is connected to the fourth reaction tank. A mud discharge pipe is provided at the bottom of the sedimentation tank. The mud discharge pipe is provided with a pump. The mud discharge pipe is connected with a mud discharge pipe and a mud return pipe connected to the fourth reaction tank. The pump is used to discharge the sludge in the mud discharge pipe through the mud discharge pipe and / or return the sludge to the fourth reaction tank through the mud return pipe.

[0005] The thallium removal integrated machine according to the embodiment of the utility model has at least the following beneficial effects:

[0006] In the utility model, when it is necessary to remove thallium from industrial wastewater in the lithium battery industry, the industrial wastewater is input into the first reaction tank through the water inlet pipe, and the pH regulator such as liquid alkali is input into the first reaction tank through the first dosing pipe to adjust the pH value of the industrial wastewater system to a suitable range. The industrial wastewater then enters the second reaction tank, and a stabilizer is added to the second reaction tank through the second dosing pipe to adjust the form of thallium and make the thallium more stable as a whole. The industrial wastewater then enters the third reaction tank, and the third dosing pipe is used to add a stabilizer to the second reaction tank. Adding coagulants such as biological agents into the third reaction tank can cause a coagulation reaction with industrial wastewater to form a suspension. The industrial wastewater then enters the fourth reaction tank, and anionic polyacrylamide and other flocculants are added to the fourth reaction tank through the fourth dosing pipe. The flocculants can flocculate the industrial wastewater into agglomerated flocs containing thallium. Finally, the industrial wastewater enters the sedimentation tank for sedimentation to achieve solid-liquid separation. The sludge containing thallium can sink and enter the sludge discharge pipe, and the supernatant after thallium removal can be discharged through the outlet of the sedimentation tank. Compared with the prior art that requires the cooperation of multiple devices for thallium removal, the thallium removal integrated machine of the utility model is not only more convenient to operate and has higher processing efficiency, but also has a high degree of integration, is convenient for transportation and installation, occupies a smaller area, and has lower cost. In addition, in addition to being discharged by being pumped into the mud outlet pipe, a small amount of sludge in the mud discharge pipe can also be pumped into the return mud pipe by a pump and refluxed into the fourth reaction tank. The sludge re-entering the fourth reaction tank can be used as a loading medium, which facilitates the rapid coagulation of thallium-containing flocs in the fourth reaction tank outside the loading medium, thereby achieving a better flocculation effect and thus a higher thallium removal efficiency.

[0007] According to some embodiments of the utility model, a first guide channel extending vertically is provided in the first reaction tank, and the water inlet pipe and the first dosing pipe both extend into the first guide channel; and / or, a second guide channel extending vertically is provided in the second reaction tank, and the second dosing pipe extends into the second guide channel; and / or, a third guide channel extending vertically is provided in the third reaction tank, and the third dosing pipe extends into the third guide channel.

[0008] According to some embodiments of the utility model, the first reaction tank is provided with a first stirrer, which is provided with a first stirring shaft located in the first reaction tank; and / or, the second reaction tank is provided with a second stirrer, which is provided with a second stirring shaft located in the second reaction tank; and / or, the third reaction tank is provided with a third stirrer, which is provided with a third stirring shaft located in the third reaction tank.

[0009] According to some embodiments of the utility model, a reaction cylinder is provided in the fourth reaction pool, the fourth dosing tube extends into the reaction cylinder, the fourth reaction pool is provided with a fourth stirrer, and the fourth stirrer is provided with a fourth stirring shaft extending into the reaction cylinder.

[0010] According to some embodiments of the utility model, the reaction cylinder extends vertically, and the bottom end of the fourth reaction tank is provided with a connecting channel connected to the third reaction tank. The connecting channel is provided with a guide tube extending upward, and the guide tube is located directly below the reaction cylinder.

[0011] According to some embodiments of the utility model, an anti-blocking plate is provided in the fourth reaction tank directly above the guide channel, and a gap exists between the anti-blocking plate and the guide channel.

[0012] According to some embodiments of the utility model, a loading medium box connected to the fourth reaction tank is provided at the top of the fourth reaction tank, the thallium removal integrated machine also includes a cyclone separator connected to the return mud pipe, the bottom end of the cyclone separator is provided with a bottom flow pipe connected to the loading medium box, the top end of the cyclone separator is provided with a top flow pipe, and the mud outlet pipe and the loading medium box are both connected to the top flow pipe.

[0013] According to some embodiments of the utility model, the sedimentation tank is provided with a sludge scraper, and the sludge scraper is used to scrape off the sludge on the inner surface of the sedimentation tank.

[0014] According to some embodiments of the utility model, the mud outlet pipe is connected to a sludge dewatering machine, and the sludge dewatering machine is provided with a water outlet and a mud outlet, and the water outlet is connected to the first reaction tank.

[0015] According to some embodiments of the utility model, a sludge temporary storage tank is provided at the bottom end of the sedimentation tank, and the sludge discharge pipe is connected to the sludge temporary storage tank.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of the thallium removal integrated machine of the utility model;

[0019] Figure 2 This is one of the viewing angles of the thallium removal machine of the utility model;

[0020] Figure 3 This is another perspective view of the thallium removal integrated machine of the utility model;

[0021] Figure 4 It is a cross-sectional view of the thallium removal integrated machine of the utility model;

[0022] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0023] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0024] Figure Number:

[0025] A first reaction tank 10; a first dosing pipe 11; a water inlet pipe 12; a first flow guide channel 13; a first stirrer 14; and a first stirring shaft 15;

[0026] The second reaction tank 20; the second dosing pipe 21; the second flow guide channel 22; the second stirrer 23; the second stirring shaft 24;

[0027] A third reaction tank 30; a third dosing pipe 31; a third flow guide channel 32; a third stirrer 33; a third stirring shaft 34;

[0028] Fourth reaction pool 40; fourth dosing pipe 41; reaction cylinder 42; fourth stirrer 43; fourth stirring shaft 44; connecting channel 45; flow guide pipe 46; anti-blocking plate 47; medium loading box 48;

[0029] Sedimentation tank 50; mud discharge pipe 51; pump 52; mud discharge pipe 53; mud return pipe 54; mud scraper 55; sludge temporary storage tank 56; inclined pipe 57; water outlet weir 58;

[0030] Cyclone separator 60; bottom flow pipe 61; top flow pipe 62;

[0031] Sludge dewatering machine 70; flocculation stirring tank 71;

[0032] Rack 80; pH adjuster configuration pool 81, coagulant configuration pool 82; stabilizer configuration pool 83, flocculant configuration box 84; control box 85;

[0033] Pre-sedimentation tank 90. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference below Figures 1 to 6 The invention describes an all-in-one thallium removal machine according to an embodiment of the invention.

[0039] like Figures 1 to 6 As shown, the thallium removal integrated machine according to the embodiment of the utility model includes a first reaction tank 10 , a second reaction tank 20 , a third reaction tank 30 , a fourth reaction tank 40 and a sedimentation tank 50 .

[0040] For example, the thallium removal machine can also include a frame 80, and the first reaction tank 10, the second reaction tank 20, the third reaction tank 30, the fourth reaction tank 40 and the sedimentation tank 50 are all arranged on the frame 80. A control box 85 can be arranged on the frame 80, and the control box 85 is used to control the operation of the entire equipment.

[0041] The first reaction tank 10 is provided with a first dosing pipe 11 and a water inlet pipe 12. The water inlet pipe 12 is used to input the industrial wastewater to be treated into the first reaction tank 10. The first dosing pipe 11 is used to input the pH adjuster into the first reaction tank 10. The pH adjuster can be liquid alkali, lime milk or other suitable pH adjusters. The pH adjuster is a common reagent in the wastewater treatment process and will not be repeated here.

[0042] The second reaction tank 20 is connected to the first reaction tank 10, and the second reaction tank 20 is provided with a second dosing pipe 21, and the second dosing pipe 21 is used to input a stabilizer into the second reaction tank 20. The stabilizer can adjust the shape of thallium. The stabilizer can be polyaluminum chloride, polyacrylamide or other suitable stabilizers. The stabilizer is a common reagent in the wastewater treatment process and will not be repeated here.

[0043] The third reaction tank 30 is connected to the second reaction tank 20. The third reaction tank 30 is provided with a third dosing pipe 31. The third dosing pipe 31 is used to input a coagulant into the third reaction tank 30. The coagulant can be a biological agent or an inorganic agent. The coagulant is a common reagent in wastewater treatment technology and will not be described in detail here.

[0044] The fourth reaction tank 40 is connected to the third reaction tank 30, and the fourth reaction tank 40 is provided with a fourth dosing pipe 41, which is used to input flocculant into the fourth reaction tank 40. The flocculant can be anionic polyacrylamide, polyaluminum chloride or other suitable flocculants. The flocculant is a common reagent in wastewater treatment process and will not be described here.

[0045] The sedimentation tank 50 is connected to the fourth reaction tank 40. The bottom of the sedimentation tank 50 is connected to a mud discharge pipe 51. The mud discharge pipe 51 is provided with a pump 52. The mud discharge pipe 51 is connected to a mud outlet pipe 53 and a mud return pipe 54 connected to the fourth reaction tank 40. The pump 52 is used to discharge the sludge in the mud discharge pipe 51 through the mud outlet pipe 53 and / or return to the fourth reaction tank 40 through the mud return pipe 54. That is, in addition to being able to discharge the sludge in the mud discharge pipe 51 through the mud outlet pipe 53, the pump 52 can also return to the fourth reaction tank 40 through the mud return pipe 54. The sedimentation tank 50 can be an inclined tube sedimentation tank, and then an inclined pipe 57 is provided in the sedimentation tank 50. Of course, the sedimentation tank 50 can also be set as other suitable types of sedimentation tanks 50, such as a horizontal flow sedimentation tank or a vertical flow sedimentation tank.

[0046] In the utility model, when it is necessary to remove thallium from industrial wastewater in the lithium battery industry, the industrial wastewater is input into the first reaction tank 10 through the water inlet pipe 12, and the pH regulator such as liquid alkali is input into the first reaction tank 10 through the first dosing pipe 11 to adjust the pH value of the industrial wastewater system to a suitable range. The industrial wastewater then enters the second reaction tank 20, and a stabilizer is added to the second reaction tank 20 through the second dosing pipe 21 to adjust the form of thallium and make the thallium more stable as a whole. The industrial wastewater then enters the third reaction tank 30, and through the third dosing pipe 3 Adding a coagulant such as a biological agent into the third reaction tank 30 can cause a coagulation reaction with the industrial wastewater to form a suspension. The industrial wastewater then enters the fourth reaction tank 40, and an anionic polyacrylamide or other flocculant is added to the fourth reaction tank 40 through the fourth dosing pipe 41. The flocculant can flocculate the industrial wastewater into agglomerated flocs containing thallium. Finally, the industrial wastewater enters the sedimentation tank 50 for sedimentation, so that solid-liquid separation can be achieved. The sludge containing thallium can sink and enter the sludge discharge pipe 51, and the clean water after the thallium is removed can be discharged through the outlet of the sedimentation tank 50.

[0047] Compared with the prior art which requires the cooperation of multiple devices for thallium removal, the thallium removal integrated machine of the utility model is not only more convenient to operate and has a higher processing efficiency, but also has a high degree of integration, is convenient for transportation and installation, occupies a smaller area, and has a lower cost. In addition, in addition to being discharged by pumping the sludge in the sludge discharge pipe 51 into the sludge discharge pipe 53 through the pump 52, a small amount of sludge can also be pumped into the return sludge pipe 54 through the pump 52 and refluxed into the fourth reaction tank 40. The sludge re-entering the fourth reaction tank 40 can be used as a loading medium, which facilitates the rapid condensation of the agglomerated flocs containing thallium in the fourth reaction tank 40 outside the loading medium, thereby achieving a better flocculation effect and a higher thallium removal processing efficiency.

[0048] It should be noted that a pre-sedimentation tank 90 may be provided between the first reaction tank 10 and the sedimentation tank 50, and the pre-sedimentation tank 90 is connected to the fourth reaction tank 40 and the sedimentation tank 50. The pre-sedimentation tank 90 first allows the flocs in the wastewater to grow and initially precipitate, and the wastewater after the initial precipitation enters the sedimentation tank 50 for further precipitation and solid-liquid separation. A pH meter may be provided in the reaction tank. For example, a pH meter may be provided in the fourth reaction tank 40, so that the staff can timely understand the pH value of the industrial wastewater system, and then adjust the pH value in time according to the actual situation. The mud discharge pipe 51 may be provided with a flow meter so that the staff can timely understand the mud discharge situation of the mud discharge pipe 51. Valves may be provided on the mud discharge pipe 53 and the mud return pipe 54 to distribute the amount of sludge entering the mud discharge pipe 53 and the mud return pipe 54. A water outlet weir 58 may be provided at the top of the sedimentation tank 50, and the water outlet weir 58 may be connected to the water outlet of the sedimentation tank 50 to facilitate water discharge.

[0049] In some embodiments of the present invention, Figure 4 As shown, a first flow guiding channel 13 extending vertically is provided in the first reaction tank 10, and the water inlet pipe 12 and the first dosing pipe 11 both extend into the first flow guiding channel 13. For example, a U-shaped material extending vertically may be installed on the inner side wall of the first reaction tank 10, and the first flow guiding channel 13 is formed between the U-shaped material and the inner side wall of the first reaction tank 10. Of course, a pipe body may be vertically arranged in the first reaction tank 10, and the first flow guiding channel 13 is directly formed in the pipe body, and the outlet end of the first dosing pipe 11 is located in the first flow guiding channel 13.

[0050] In this embodiment, a first guide channel 13 is set in the first reaction tank 10, and the reagent added by the first dosing pipe 11 can be quickly, completely and evenly mixed with the industrial wastewater entering from the water inlet pipe 12, thereby achieving better treatment effect and higher treatment efficiency for the industrial wastewater.

[0051] In some embodiments of the present invention, Figure 4As shown, a second flow guiding channel 22 extending vertically is provided in the second reaction tank 20, and the second dosing tube 21 extends into the second flow guiding channel 22. For example, a U-shaped material extending vertically may be installed on the inner side wall of the second reaction tank 20, and the second flow guiding channel 22 is formed between the U-shaped material and the inner side wall of the second reaction tank 20. Of course, a tube body may be vertically arranged in the second reaction tank 20, and the second flow guiding channel 22 is directly formed in the tube body, and the outlet end of the second dosing tube 21 is located in the second flow guiding channel 22.

[0052] In this embodiment, a second guide channel 22 is set in the second reaction tank 20, which makes it more convenient for the reagent added by the second dosing tube 21 to enter the middle or bottom of the second reaction tank 20, so that the reagent added by the second dosing tube 21 can be mixed with the industrial wastewater in the second reaction tank 20 more quickly, comprehensively and evenly, thereby achieving better treatment effect and higher treatment efficiency for the industrial wastewater.

[0053] In some embodiments of the present invention, Figure 4 As shown, a third flow guiding channel 32 extending vertically is provided in the third reaction tank 30, and the third dosing tube 31 extends into the third flow guiding channel 32. For example, a U-shaped material extending vertically may be installed on the inner side wall of the third reaction tank 30, and the U-shaped material and the inner side wall of the third reaction tank 30 may enclose the third flow guiding channel 32. Of course, a tube body may be vertically arranged in the third reaction tank 30, and the third flow guiding channel 32 may be directly formed in the tube body, and the outlet end of the third dosing tube 31 may be located in the third flow guiding channel 32.

[0054] In this embodiment, a third guide channel 32 is set in the third reaction tank 30, which makes it more convenient for the reagent added by the third dosing pipe 31 to enter the middle or bottom of the third reaction tank 30, so that the reagent added by the third dosing pipe 31 can be mixed with the industrial wastewater in the third reaction tank 30 more quickly, comprehensively and evenly, thereby achieving better treatment effect and higher treatment efficiency for the industrial wastewater.

[0055] In some embodiments of the present invention, Figures 1 to 4 As shown, the first reaction tank 10 is provided with a first stirrer 14, and the first stirrer 14 is provided with a first stirring shaft 15 located in the first reaction tank 10. For example, the first stirring shaft 15 can be provided with a first stirring blade, and the first stirrer 14 drives the first stirring shaft 15 to rotate, and the first stirring shaft 15 can drive the first stirring blade to rotate, thereby stirring and mixing the liquid in the first reaction tank 10, so that the industrial wastewater in the first reaction tank 10 and the pH regulator are mixed more comprehensively and evenly, and the pH adjustment effect is better, so that the treatment effect of the industrial wastewater is better and the treatment efficiency is higher.

[0056] In some embodiments of the present invention, Figures 1 to 4As shown, the second reaction tank 20 is provided with a second stirrer 23, and the second stirrer 23 is provided with a second stirring shaft 24 located in the second reaction tank 20. For example, the second stirring shaft 24 can be provided with a second stirring blade, and the second stirrer 23 drives the second stirring shaft 24 to rotate, and the second stirring shaft 24 can drive the second stirring blade to rotate, thereby stirring and mixing the liquid in the second reaction tank 20, so that the industrial wastewater in the second reaction tank 20 and the stabilizer are mixed more comprehensively and evenly, and the stabilization effect on the thallium-containing substance is better, so that the treatment effect on the industrial wastewater is better and the treatment efficiency is higher.

[0057] In some embodiments of the present invention, Figures 1 to 4 As shown, the third reaction tank 30 is provided with a third stirrer 33, and the third stirrer 33 is provided with a third stirring shaft 34 located in the third reaction tank 30. For example, the third stirring shaft 34 can be provided with a third stirring blade, and the third stirrer 33 drives the third stirring shaft 34 to rotate, and the third stirring shaft 34 can drive the third stirring blade to rotate, thereby stirring and mixing the liquid in the third reaction tank 30, so that the industrial wastewater in the third reaction tank 30 and the coagulant are mixed more comprehensively and evenly, and the coagulation effect on the thallium-containing substance is better, so that the treatment effect on the industrial wastewater is better and the treatment efficiency is higher.

[0058] In some embodiments of the present invention, Figures 1 to 4 As shown, a reaction barrel 42 is provided in the fourth reaction tank 40, a fourth dosing pipe 41 extends into the reaction barrel 42, a fourth stirrer 43 is provided in the fourth reaction tank 40, and the fourth stirrer 43 is provided with a fourth stirring shaft 44 extending into the reaction barrel 42. For example, the reaction barrel 42 can extend vertically, the top and bottom ends of the reaction barrel 42 can be penetrated, and the portion of the fourth stirring shaft 44 in the reaction barrel 42 can be provided with a fourth stirring blade. The fourth dosing pipe 41 adds flocculant into the reaction barrel 42, and the fourth stirrer 43 drives the fourth stirring blade to rotate through the fourth stirring shaft 44, so that the flocculant is mixed with the industrial wastewater in the reaction barrel 42 more comprehensively and evenly, and the flocculation effect on the thallium-containing substances is better. In addition, the reaction barrel 42 is provided, and the flocculant can be concentrated in the reaction barrel 42 with the industrial wastewater for flocculation reaction, the flocculation effect is better, the flocculation efficiency is higher, and thus the treatment effect on the industrial wastewater is better and the treatment efficiency is higher.

[0059] In some embodiments of the present invention, Figure 4 and Figure 5As shown, the reaction barrel 42 extends vertically, and the bottom end of the fourth reaction tank 40 is provided with a connecting channel 45 connected to the third reaction tank 30. The connecting channel 45 is provided with a guide pipe 46 extending upward, and the guide pipe 46 is located directly below the reaction barrel 42. The industrial wastewater after coagulation in the third reaction tank 30 enters the guide pipe 46 through the connecting channel 45 and is ejected from the top of the guide pipe 46. Since the reaction barrel 42 extends vertically, the guide pipe 46 extends vertically, and the guide pipe 46 is located directly below the reaction barrel 42, the industrial wastewater ejected from the guide pipe 46 can quickly enter the reaction barrel 42 and be flocculated into agglomerates by the flocculant, the flocculation effect is better, the flocculation efficiency is higher, and thus the treatment effect of the industrial wastewater is better and the treatment efficiency is higher.

[0060] It should be noted that a flocculation baffle may be provided on the peripheral side of the reaction cylinder 42 , and the plate surface of the flocculation baffle may be a vertical surface to further improve the flocculation effect.

[0061] In some embodiments of the present invention, Figure 5 As shown, an anti-blocking plate 47 is provided in the fourth reaction tank 40 just above the flow guide 46, and there is a gap between the anti-blocking plate 47 and the flow guide 46. The anti-blocking plate 47 can prevent the flocculated substances in the fourth reaction tank 40 from entering the flow guide 46 and blocking the flow guide 46.

[0062] In some embodiments of the present invention, Figure 6 As shown, a loading medium box 48 connected to the fourth reaction tank 40 is provided at the top of the fourth reaction tank 40, and the thallium removal integrated machine also includes a cyclone separator 60, and the cyclone separator 60 is connected to the mud return pipe 54. The bottom end of the cyclone separator 60 is provided with a bottom flow pipe 61 connected to the loading medium box 48, and the top end of the cyclone separator 60 is provided with a top flow pipe 62, and the mud outlet pipe 53 and the loading medium box 48 are both connected to the top flow pipe 62.

[0063] In this embodiment, most of the sludge is discharged through the mud outlet pipe 53, and a small amount of sludge enters the cyclone separator 60 through the mud return pipe 54. The cyclone separator 60 can separate the sludge. The heavier sludge particles enter the loading medium box 48 through the bottom underflow pipe 61, and the lighter sludge enters the top flow pipe 62. A part of the lighter sludge enters the mud outlet pipe 53 and is discharged, and a part of the lighter sludge enters the loading medium box 48 and mixes with the heavier sludge in the loading medium box 48. In addition, magnetic powder, garnet sand and other loading materials can be added to the loading medium box 48. These loading materials are used together with the mixed sludge in the loading medium box 48 as loading media. After the loading media is input into the fourth reaction tank 40, the thallium-containing substances can be quickly adsorbed on the loading medium, thereby improving the flocculation effect and efficiency.

[0064] It should be noted that a valve may be provided between the top flow pipe 62 and the loading medium box 48 , and a valve may be provided between the top flow pipe 62 and the mud outlet pipe 53 , so as to facilitate the adjustment of the sludge distribution amount.

[0065] In some embodiments of the present invention, Figures 1 to 4 As shown, the sedimentation tank 50 is provided with a scraper 55, which is used to scrape the sludge on the inner surface of the sedimentation tank 50. The sludge on the inner surface of the sedimentation tank 50 is scraped by the scraper 55, so that the sludge discharge effect is better. It should be noted that the scraper 55 can be a peripheral drive scraper, a central drive scraper or other suitable types of scrapers 55.

[0066] In some embodiments of the present invention, Figures 2 to 4 As shown, the mud outlet pipe 53 is connected to a sludge dewatering machine 70, and the sludge dewatering machine 70 is provided with a water outlet and a mud outlet, and the water outlet is communicated with the first reaction tank 10. For example, the sludge dewatering machine 70 can be a spiral sludge dewatering machine, a centrifugal sludge dewatering machine or other suitable sludge dewatering machine 70. The sludge dewatering machine 70 is provided to dewater the sludge, and facilitate the transportation and storage of the sludge. The water outlet of the sludge dewatering machine 70 is communicated with the first reaction tank 10, and the water separated from the sludge dewatering machine 70 can be repeatedly treated to remove thallium, which is more energy-saving and environmentally friendly.

[0067] It should be noted that the sludge dewatering machine 70 may be equipped with a flocculation stirring tank 71, and the water content of the sludge can be further reduced by adding flocculants.

[0068] In some embodiments of the present invention, Figure 4 As shown, a sludge temporary storage tank 56 is provided at the bottom of the sedimentation tank 50, and the sludge discharge pipe 51 is connected to the sludge temporary storage tank 56. The sludge temporary storage tank 56 is provided to temporarily store the sludge that cannot be discharged in time, which is more practical.

[0069] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, a dosing system may be provided on the rack 80, and the dosing system includes a pH adjuster configuration pool 81, a stabilizer configuration pool 83, a coagulant configuration pool 82, and a flocculant configuration box 84, etc. The first dosing pipe 11 is connected to the pH adjuster configuration pool 81, the second dosing pipe 21 is connected to the stabilizer configuration pool 83, the third dosing pipe 31 is connected to the coagulant configuration pool 82, and the fourth dosing pipe 41 is connected to the flocculant configuration box 84. The dosing system is provided, and it is more convenient to add drugs into the first reaction pool 10, the second reaction pool 20, the third reaction pool 30, and the fourth reaction pool 40.

[0070] The following is a specific embodiment to describe the process of removing thallium from industrial wastewater containing thallium by the thallium removal integrated machine of the present invention. It can be understood that the following description is only an exemplary description and is not a specific limitation.

[0071] Taking the industrial wastewater produced by the production of battery-grade lithium carbonate as the implementation object, the pH value of the industrial wastewater is 7.4, the thallium content is 0.083mg / L, the lead content is 5mg / L, and the cadmium content is 0.08mg / L. The thallium removal process is as follows:

[0072] S1. Industrial wastewater enters the first reaction tank 10 through the water inlet pipe 12, and the water flow rate is controlled at 120m3 / h;

[0073] S2. Add 10% concentration of liquid caustic soda to the first reaction tank 10 to adjust the pH value of the industrial wastewater system to 9.5, the hydraulic retention time is 10min;

[0074] S3 then enters the second reaction tank 20 and adds a stabilizer 0.3L / m3, and adjusts the form of thallium by the stabilizer, and the hydraulic retention time is 10min;

[0075] S4. After the wastewater enters the third reaction tank 30, 0.5L / m3 of biological agent is added, and a coagulation reaction occurs, and the hydraulic retention time is 5min;

[0076] S5. After the wastewater enters the fourth reaction tank 40, 2 g / m3 of flocculant is added to accelerate the formation of thallium-containing ligand micelles;

[0077] S6. The wastewater then enters the sedimentation tank 50 for solid-liquid separation. The supernatant in the sedimentation tank 50 meets the standards and is discharged. Part of the sludge is pumped into the mud outlet pipe 53 by the pump 52 and enters the screw-type sludge dewatering machine for filtration. The filtrate is returned to the first reaction tank 10 for treatment, and the filter cake is safely disposed of.

[0078] S7. Part of the bottom mud is pumped into the mud return pipe 54 by the pump 52, and then separated by the cyclone separator 60 and returned to the fourth reaction tank 40 to assist sedimentation.

[0079] The water quality of the treated drainage can reach: pH value 6 to 9, lead content less than 0.1mg / L, thallium content less than 0.002mg / L, cadmium content less than 0.005mg / L.

[0080] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A thallium removal integrated machine, characterized in that: include: A first reaction tank is provided with a first dosing pipe and a water inlet pipe, wherein the first dosing pipe is used to input a pH regulator into the first reaction tank; A second reaction tank, connected to the first reaction tank, the second reaction tank is provided with a second dosing pipe, and the second dosing pipe is used to input a stabilizer into the second reaction tank; A third reaction tank is connected to the second reaction tank, and the third reaction tank is provided with a third dosing pipe, and the third dosing pipe is used to input a coagulant into the third reaction tank; A fourth reaction tank, connected to the third reaction tank, the fourth reaction tank is provided with a fourth dosing pipe, and the fourth dosing pipe is used to input flocculant into the fourth reaction tank; A sedimentation tank is connected to the fourth reaction tank, the bottom end of the sedimentation tank is connected to a mud discharge pipe, the mud discharge pipe is provided with a pump, the mud discharge pipe is connected to a mud outlet pipe and a mud return pipe connected to the fourth reaction tank, the pump is used to discharge the sludge in the mud discharge pipe through the mud outlet pipe and / or return the sludge to the fourth reaction tank through the mud return pipe.

2. The thallium removal integrated machine according to claim 1, characterized in that: A first flow guiding channel extending vertically is provided in the first reaction tank, and the water inlet pipe and the first drug adding pipe both extend into the first flow guiding channel; and / or, A second flow guiding channel extending vertically is provided in the second reaction tank, and the second dosing pipe extends into the second flow guiding channel; and / or, A third flow guiding channel extending vertically is provided in the third reaction tank, and the third drug adding pipe extends into the third flow guiding channel.

3. The thallium removal integrated machine according to claim 1, characterized in that: The first reaction tank is provided with a first stirrer, and the first stirrer is provided with a first stirring shaft located in the first reaction tank; and / or, The second reaction tank is provided with a second stirrer, and the second stirrer is provided with a second stirring shaft located in the second reaction tank; and / or, The third reaction tank is provided with a third stirrer, and the third stirrer is provided with a third stirring shaft located in the third reaction tank.

4. The thallium removal integrated machine according to claim 1, characterized in that: A reaction cylinder is arranged in the fourth reaction pool, the fourth drug-adding pipe extends into the reaction cylinder, the fourth reaction pool is provided with a fourth stirrer, and the fourth stirrer is provided with a fourth stirring shaft extending into the reaction cylinder.

5. The thallium removal integrated machine according to claim 4, characterized in that: The reaction cylinder extends vertically, and a connecting channel connected to the third reaction tank is provided at the bottom of the fourth reaction tank. The connecting channel is provided with a guide pipe extending upward, and the guide pipe is located directly below the reaction cylinder.

6. The thallium removal integrated machine according to claim 5, characterized in that: An anti-blocking plate is provided in the fourth reaction tank just above the flow guide pipe, and a gap exists between the anti-blocking plate and the flow guide pipe.

7. The thallium removal integrated machine according to claim 1, characterized in that: A loading medium box connected to the fourth reaction pool is provided at the top of the fourth reaction pool, and the thallium removal integrated machine further includes: A cyclone separator is connected to the mud return pipe, the bottom end of the cyclone separator is provided with a bottom flow pipe connected to the loading medium box, the top end of the cyclone separator is provided with a top flow pipe, and the mud outlet pipe and the loading medium box are both connected to the top flow pipe.

8. The thallium removal integrated machine according to claim 1, characterized in that: The sedimentation tank is provided with a sludge scraper, and the sludge scraper is used to scrape away the sludge on the inner surface of the sedimentation tank.

9. The thallium removal integrated machine according to claim 1, characterized in that: The mud outlet pipe is connected to a sludge dewatering machine, and the sludge dewatering machine is provided with a water outlet and a mud outlet, and the water outlet is communicated with the first reaction tank.

10. The all-in-one thallium removal machine according to claim 1, characterized in that: A sludge temporary storage tank is provided at the bottom end of the sedimentation tank, and the sludge discharge pipe is connected to the sludge temporary storage tank.

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