A reactor for preparing polyaluminum ferric sulfate from the waste catalyst recovery tail liquid

Abstract

The present invention provides a reaction kettle for preparing polyaluminum ferric sulfate from the waste catalyst recycling tail liquid, belonging to the technical field of chemical reaction treatment. The reaction kettle includes a reaction kettle, and a circulation pump is arranged at the bottom of the reaction kettle to circulate the raw materials put into the reaction kettle through the circulation pump. After repeated circulation, the raw materials are mixed and stirred multiple times, avoiding the influence of the internal stirring component on the reaction quality of the raw materials, thereby improving the quality of polyaluminum ferric sulfate. The bottom of the conical eddy current chamber is fixedly connected with a return hopper arranged in the inner cavity of the reaction kettle, and the return hopper is communicated with the inner cavity of the conical eddy current chamber. The bottom of the return hopper is communicated with the liquid inlet of the circulation pump. During the mixing of the liquid, when the liquid passes through the eccentric flow holes on both sides, since the eccentric flow holes on both sides are symmetrically located at the eccentric positions, the liquid entering the conical eddy current chamber from both sides forms an eddy current, and the efficiency of liquid circulation is improved through the vortex-type liquid, thereby ensuring the stirring effect of the liquid raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical reaction treatment, and particularly to a reaction kettle for preparing polyaluminum ferric sulfate from the tail liquid of waste catalyst recovery. Background Art

[0002] Polyaluminum ferric sulfate is a flocculant, mainly used as a treatment agent for drinking water and industrial water, as well as a treatment agent for industrial wastewater, urban sewage and sludge, and has functions such as decolorization, deodorization, demulsification and sludge dehydration. At present, polyaluminum ferric sulfate is mainly produced by two methods, one is the direct oxidation method and the other is the catalytic oxidation method. The raw material cost of the direct oxidation method is higher than that of the catalytic oxidation method, so the catalytic oxidation method is mostly used for production. By stirring in a reaction kettle, low-molecular-weight compounds are polymerized into high-molecular-weight compounds through chemical reactions. Specifically, ferrous sulfate (FeSO4) reacts with sulfuric acid aluminum tail liquid (H2SO4) in the reaction kettle to produce polyaluminum ferric sulfate.

[0003] Related Technology 1 (publication number: CN105214592A) discloses a reaction device for producing polyferric sulfate, and its disclosed technical solution: a porous sieve plate unit and an aeration unit are added in a traditional reaction kettle. The porous sieve plate unit increases the suspension time of the liquid through a filler, and oxygen is released from the aeration unit and diffuses throughout the reaction kettle, increasing the gas-liquid contact area and contact time, and improving the reaction rate and production efficiency;

[0004] Related Technology 2 (publication number: CN112973602A) discloses a catalytic oxidation reaction kettle for polyferric sulfate production, and its disclosed technical solution: by setting an auxiliary catalytic device, a gas pump can be used to input pure oxygen from a rotary joint, and the oxygen enters the aeration mechanism through an oxygen delivery cavity to add oxygen to the solution in the kettle. The addition of oxygen can greatly promote the progress of the oxidation reaction and save the dosage of the catalyst. By the rotation of the rotating shaft, while stirring the solution in the kettle, the oxygen injection position is continuously changed, so that the mixing of oxygen and solution in the kettle is uniform and sufficient, improving the production efficiency of polyaluminum ferric sulfate; by setting a heating mechanism, when the rotating shaft rotates, the heating mechanism also continuously changes its position, making the temperature rise of the solution in the kettle more uniform and promoting the progress of the oxidation reaction; by setting a secondary shaft and blades, when the blades rotate with the secondary shaft, a downward thrust is generated on the solution, so that the solution in the kettle is continuously turned over. When the aeration device injects oxygen into the solution, the oxygen bubbles will extend the residence time in the solution under the action of the blades, and at the same time make the oxygen and solution mix fully, thereby promoting the progress of the oxidation reaction;

[0005] Related technology 3 (publication number: CN215028908U) discloses a reaction kettle of ferric sulfate, and the disclosed technical solution is: a first motor, a first rotating rod, a first gear, a second gear, a second rotating rod, a dispersion disk and a stirring rod are arranged, and the first motor drives the dispersion disk and the stirring rod to rotate at the same time in coordination with the mutual meshing of the first gear and the second gear, so as to achieve the effect of breaking up and stirring the materials, thereby improving the reaction efficiency;

[0006] Related technology 4 (publication number: CN114588864A) discloses an anti-blocking reactor for producing polyferric sulfate, and the disclosed technical solution is: in order to ensure the reaction rate and post-treatment during the production of polyferric sulfate, the concentration of the reaction liquid is high, and crystallization or impurity blockage is prone to occur during the production process. Once crystallization occurs, it is difficult to dissolve and dredge with the reaction liquid, and friction dredging is more suitable. Friction dredging requires stopping the reaction, which will affect the processing progress. The present invention adopts the combination of a float, an umbrella-shaped part, and a poking needle. When the reaction circulation system is blocked, the flow rate is changed to make the liquid outlet hole conductive, which does not affect the reaction and does not need to be disassembled for maintenance;

[0007] In the above disclosed technical solution, the following problems are found in the related technology: in the process of preparing polyferric sulfate, a mixing reaction is carried out by setting a stirrer to obtain polyferric sulfate, but in this process, the blades of the stirrer may cause corrosion of the stirring shaft and the blades due to the quality of the material, and the halogen elements in the system exceed the material selection requirements, resulting in severe wear;

[0008] Furthermore, in situations where stirring is intense, the viscosity of the liquid kettle reactor is low, or the average residence time is long, there may be problems with the flow pattern of the materials in the kettle, affecting the mixing effect;

[0009] Therefore, we proposed a new reactor for recovering tail liquid from waste catalyst to prepare polyaluminium ferric sulfate.

[0010] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include prior art information that does not constitute known to ordinary technicians in the field. Summary of the invention

[0011] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. In order to solve the problem of sufficient reaction in the above-mentioned prior art, the present invention provides a reactor for preparing polyaluminum ferric sulfate from waste catalyst tail liquid, which adopts a circulating stirring mixing structure combined with a liquid dispersion mixing structure to achieve the effect of improving the sufficient reaction. Its specific technical scheme is:

[0012] A reactor for preparing polyaluminum ferric sulfate from the tail liquid of waste catalyst recovery, including a reactor. A circulating pump is arranged at the bottom of the reactor. The liquid inlet of the circulating pump is communicated with the bottom of the reactor, and the liquid outlet of the circulating pump is communicated with the top of the outer wall of the reactor;

[0013] A conical eddy current chamber is embedded in the inner cavity of the reactor. Eccentric flow holes are symmetrically arranged on both sides of the outer wall of the conical eddy current chamber. A reflux hopper arranged in the inner cavity of the reactor is fixedly connected to the bottom of the conical eddy current chamber, and the reflux hopper is communicated with the inner cavity of the conical eddy current chamber. The bottom of the reflux hopper is communicated with the liquid inlet of the circulating pump;

[0014] A heater is arranged on the outer wall of the reactor. A flow track for prolonging the liquid flow time is arranged in the inner cavity of the reactor. The liquid outlet of the flow track is communicated with the eccentric flow hole. The flow track is located above the conical eddy current chamber.

[0015] In the above technical solution, a partition chamber is fixedly connected to the top of the reactor. A sealing plate is arranged at the docking position of the partition chamber and the reactor. An eight-shaped slideway is embedded at the top of the sealing plate. Slide rods are evenly arranged in a sliding manner in the inner cavity of the eight-shaped slideway. A dispersing member extending into the inner cavity of the reactor is arranged at the bottom end of the slide rod. A circulating driving assembly for driving the slide rod to slide cyclically along the eight-shaped slideway is arranged in the inner cavity of the partition chamber.

[0016] The circulating driving assembly includes turntables rotatably arranged towards each other at the top of the inner wall of the partition chamber. Card slots are evenly arranged on the circumferential outer wall of the turntable. A clamping block fixedly connected to the top end of the slide rod is clamped in the inner cavity of the card slot, and the clamping block is attached to the top of the eight-shaped slideway. A limiting clamping member attached to the bottom of the eight-shaped slideway is sleeved on the outer wall of the slide rod. A lever for adjusting the direction of the slide rod is rotatably arranged at the top of the sealing plate. A direction-changing assembly for driving the lever to swing reciprocally is arranged in the inner cavity of the partition chamber. A rotation driving member for driving the two turntables to rotate towards each other is arranged in the inner cavity of the partition chamber.

[0017] The direction-changing assembly includes a driving shaft rotatably arranged on the sealing plate. A driving half gear is sleeved on the outer wall of the driving shaft. A driven half gear is sleeved on the outer wall of the moving shaft where the lever is located. A transmission rack slidably arranged on the sealing plate is arranged between the driven half gear and the driving half gear, and both sides of the transmission rack are meshed with the driven half gear and the driving half gear respectively. A guide rail is sleeved on the outer wall of the driving shaft. A slider is slidably arranged on the outer wall of the guide rail. A driving member is rotatably arranged on the inner wall of the partition chamber. The free end of the driving member is rotatably connected to the slider.

[0018] A support base is fixedly installed at the top of the sealing plate. A guide rod is fixedly installed at the top of the support base. A moving seat connected to the transmission rack is sleeved outside the guide rod.

[0019] Sealing plates are symmetrically and rotatably arranged in the inner cavity of the eight-shaped slideway.

[0020] The rotary drive member includes two drive shafts rotatably arranged at the top of the inner wall of the separation bin. Gears are sleeved on the outer walls of each of the drive shafts, and the two gears are meshed with each other. The gears, the turntable and the sealing plate are sequentially sleeved on the outside of the drive shaft from top to bottom.

[0021] The circulation track includes a sealing pillar arranged in the inner cavity of the reaction kettle. A spiral slideway fixed to the inner wall of the reaction kettle is sleeved on the outer wall of the sealing pillar. The top of the sealing pillar is conical.

[0022] Liquid-dispersing grooves are evenly formed in the circumferential direction on the outer wall of the dispersing member.

[0023] Feeding ports are evenly embedded in the circumferential direction at the top of the outer wall of the reaction kettle.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: The reaction kettle for extracting polyaluminum ferric sulfate from the platinum-refining affiliated sulfuric acid tail liquid:

[0025] 1. The raw materials put into the reaction kettle are circulated by a circulating pump. After repeated circulation, the raw materials are mixed and stirred multiple times, avoiding the influence of the built-in stirring member on the reaction quality of the raw materials, thereby improving the quality of polyaluminum ferric sulfate.

[0026] 2. During the process of mixing the liquid, when the liquid passes through the eccentric flow holes on both sides, since the eccentric flow holes on both sides are symmetrically located at eccentric positions, the liquid entering the conical vortex chamber on both sides forms a vortex, and the efficiency of liquid circulation is improved through the vortex-type liquid, thereby ensuring the stirring effect of the liquid raw materials.

[0027] 3. The time of the liquid in the reaction kettle is increased through the circulation track, so that the liquid raw materials are more fully heated to ensure the mixing effect of the polyaluminum ferric sulfate raw materials, thereby improving the quality of polyaluminum ferric sulfate.

[0028] 4. Through the circulation drive assembly, the three slide rods slide cyclically along the eight-shaped slideway, so that the three slide rods drive the dispersing member at the bottom to slide cyclically along the trajectory of the number "8". The liquid raw materials entering the reaction kettle fall on the three cyclically sliding dispersing members. The liquid raw materials are dispersed by the dispersing member, and the dispersed liquid raw materials are mixed more evenly with each other, thereby improving the mixing and stirring effect of the raw materials and further improving the efficiency of the polyaluminum ferric sulfate processing process.

[0029] 5. When one of the slide bars slides to the position adjacent to the two turntables, that is, the slide bar is in the slots of the two turntables at the same time, the direction in which the lever is pushed by the direction-changing assembly causes the slide bar to slide along the direction corresponding to the figure-eight slideway through the limit of the lever bar, thereby ensuring that the three slide bars continue to break up the raw materials along the figure-eight slideway, thereby ensuring the efficiency of the raw material breaking up and improving the raw material mixing effect.

[0030] 6. The sliding cooperation between the moving seat and the guide rod can avoid the direction deviation of the transmission rack, thereby ensuring the stability of the cyclic sliding process of the three slide bars.

[0031] 7. The liquid dispersion grooves are arranged circumferentially on the slope of the outer wall of the scattered parts, so that the raw materials falling on the scattered parts are evenly dispersed, thereby improving the effect of liquid dispersion treatment and further improving the effect of raw material mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a reactor for recovering tail liquid from waste catalyst to prepare polyaluminium ferric sulfate according to the present invention;

[0033] Figure 2 The structure of the reactor part of the present invention is cut away Figure Ⅰ ;

[0034] Figure 3 The structure of the reactor part of the present invention is cut away Figure Ⅱ ;

[0035] Figure 4 It is a schematic diagram of the explosion structure of a reactor for preparing polyaluminium ferric sulfate from waste catalyst-derived sulfuric acid tail liquid of platinum according to the present invention;

[0036] Figure 5 It is a schematic diagram of the explosion structure of the compartment part of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure explosion of the circulation drive component part of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the direction-changing component part of the present invention;

[0039] Figure 8 It is a structural schematic diagram of the circulating drive component part of the present invention;

[0040] Figure 9 Schematic diagram of the structure explosion of the circulation track part of the present invention Figure Ⅰ ;

[0041] Figure 10 Schematic diagram of the structure explosion of the circulation track part of the present invention Figure Ⅱ;

[0042] Figure 11 It is the process flow diagram of the preparation process of the reactor of the present invention;

[0043] Among them, Figures 1 to 10 The corresponding relationship between the reference numerals and the component names in the figure is: 1 - reactor, 10 - circulation pump, 11 - return pipe, 13 - feed port, 14 - eccentric surge hole, 15 - return hopper, 16 - heater, 17 - support seat, 18 - moving seat, 19 - guide rod, 2 - partition chamber, 21 - sealing plate, 22 - eight-shaped slideway, 23 - slide rod, 24 - dispersing member, 25 - closing plate, 26 - liquid dispersion tank opening, 3 - circulation track, 31 - sealing support, 32 - spiral slideway, 4 - circulation driving assembly, 41 - turntable, 42 - card slot, 43 - card block, 44 - limit card member, 45 - movable shaft, 46 - lever member, 5 - direction-changing assembly, 51 - driving shaft, 52 - driving half gear, 53 - driven half gear, 54 - driving rack, 55 - guide rail, 56 - slider, 57 - driving member, 58 - transmission rod, 6 - driving member, 61 - driving shaft, 62 - gear, 9 - conical eddy chamber. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0045] Next, in combination with specific implementation cases and the attached Figure 1 - attached Figure 10 The present invention will be further described, but the present invention is not limited to these embodiments.

[0046] A reactor for preparing polyaluminum ferric sulfate from the waste catalyst recovery tail liquid includes a reactor 1. A circulation pump 10 is arranged at the bottom of the reactor 1. The circulation pump 10 is fixedly installed at the bottom of the reactor 1 through a frame and is powered on through a wire. The liquid inlet of the circulation pump 10 is communicated with the bottom of the reactor 1, and the liquid outlet of the circulation pump 10 is communicated with the top of the outer wall of the reactor 1. One end of the return pipe 11 is hermetically communicated with the liquid output end of the circulation pump 10, and the other end of the return pipe 11 is embedded and installed at the top of the outer wall of the reactor 1, so that the return pipe 11 is communicated with the inner cavity of the reactor 1. The liquid input end of the circulation pump 10 and the bottom of the reactor 1 are hermetically communicated through a liquid inlet pipe.

[0047] With the above structure, the raw materials put into the reaction kettle 1 are circulated by the circulating pump 10. After repeated circulation, the raw materials are mixed and stirred multiple times, avoiding the influence of the built-in stirring member on the reaction quality of the raw materials, thereby improving the quality of polyaluminum ferric sulfate.

[0048] A conical eddy current chamber 9 is embedded and installed in the inner cavity of the reaction kettle 1. The conical eddy current chamber 9 is fixedly embedded and installed in the inner cavity of the reaction kettle 1, and the conical eddy current chamber 9 is located near the bottom of the reaction kettle 1. Eccentric flow holes 14 are symmetrically arranged on both sides of the outer wall of the conical eddy current chamber 9. Eccentric flow holes 14 are arranged on both sides of the outer wall of the conical eddy current chamber 9 at positions deviating from the center, and the inner cavity of the conical eddy current chamber 9 is communicated with the inner cavity of the reaction kettle 1 through the eccentric flow holes 14. A return hopper 15 arranged in the inner cavity of the reaction kettle 1 is fixedly connected to the bottom of the conical eddy current chamber 9, and the return hopper 15 is communicated with the inner cavity of the conical eddy current chamber 9. The bottom of the return hopper 15 is communicated with the liquid inlet of the circulating pump 10.

[0049] The outer wall above the return hopper 15 is attached to the inner wall of the reaction kettle 1, so that the return hopper 15 is fixed in the inner cavity of the reaction kettle 1. The bottom of the conical eddy current chamber 9 is an open structure, and the return hopper 15 is fixedly installed in a fitting manner at the bottom of the conical eddy current chamber 9. The top of the conical eddy current chamber 9 is a closed structure, and the outer periphery of the bottom of the conical eddy current chamber 9 is attached to the inner wall of the reaction kettle 1, so that the liquid in the inner cavity of the reaction kettle 1 enters the inner cavity of the conical eddy current chamber 9 through the eccentric flow holes 14, enters the circulating pump 10 through the return hopper 15 below the conical eddy current chamber 9, is brought into the inner cavity of the return pipe 11 by the circulating pump 10, and returns to the inner cavity of the reaction kettle 1 again through the return pipe 11.

[0050] With the above structure, during the mixing of the liquid, when the liquid passes through the eccentric flow holes 14 on both sides, since the eccentric flow holes 14 on both sides are symmetrically located at eccentric positions, the liquid entering the conical eddy current chamber 9 from both sides forms an eddy current, and the efficiency of liquid circulation is improved by the vortex-type liquid, thereby ensuring the stirring effect of the liquid raw materials.

[0051] On the outer wall of the reactor 1, a heater 16 is provided. The liquid circulation of the entire system of the heater 16 of the reactor 1 is sealed. The system is equipped with an expansion vessel, and the expansion vessel and the liquid circulation are adiabatic and do not participate in the liquid circulation. They are only mechanically connected. Regardless of whether the temperature of the liquid circulation is high or low, the medium in the expansion vessel is below 60 degrees. The entire liquid circulation is a closed system. There is no absorption of water vapor at low temperatures, and no generation of oil mist at high temperatures. The heat transfer oil can operate at a wide range of working temperatures. With the same machine and the same heat transfer medium, temperature control can be achieved from -95 degrees to 200 degrees. In the range of 1KW to 80KW of refrigeration capacity, no mechanical or electronic valves are used in the entire circulation system. The heater 16 is fixedly embedded on the outer wall of the reactor 1, and the heating component of the heater 16 is located in the inner cavity of the reactor 1, providing heat for the reaction process of polyaluminum ferric sulfate to ensure the production quality of polyaluminum ferric sulfate.

[0052] With the above structure, a flow track 3 for extending the liquid flow time is provided in the inner cavity of the reactor 1. By means of the flow track 3, the time of the liquid in the reactor 1 is increased, enabling the liquid raw materials to be heated more fully to ensure the mixing effect of the polyaluminum ferric sulfate raw materials, thereby improving the quality of polyaluminum ferric sulfate. The liquid outlet of the flow track 3 is communicated with the eccentric surge hole 14, so that the liquid enters the interior of the eccentric surge hole 14 after passing through the flow track 3, and then circulates and stirs through the formed eddy current. The flow track 3 is located above the conical eddy current chamber 9.

[0053] Among them, a partition chamber 2 is fixedly connected to the top of the reactor 1, and a sealing plate 21 is provided at the docking part of the partition chamber 2 and the reactor 1. The partition chamber 2 is fixedly attached to the top of the reactor 1, making the inner cavities of the reactor 1 and the partition chamber 2 communicate. The sealing plate 21 is fixedly embedded at the docking part of the partition chamber 2 and the reactor 1, and the space between the partition chamber 2 and the reactor 1 is divided into two parts by the sealing plate 21. An eight-shaped slideway 22 is embedded at the top of the sealing plate 21, and slide rods 23 are evenly slidably arranged in the inner cavity of the eight-shaped slideway 22. The eight-shaped slideway 22 in the shape of an Arabic numeral "8" is fixedly embedded at the bottom of the sealing plate 21 and penetrates the inner cavity, so that the reactor 1 and the partition chamber 2 are communicated through the eight-shaped slideway 22.

[0054] At the bottom end of the slide rod 23, a dispersing part 24 extending into the inner cavity of the reactor 1 is provided. The slide rod 23 passes through the eight-shaped slideway 22 and then extends into the inner cavity of the reactor 1. The dispersing part 24 is fixedly installed at the end of the slide rod 23 in the inner cavity of the reactor 1, and a circulating drive assembly 4 for driving the slide rod 23 to slide cyclically along the eight-shaped slideway 22 is provided in the inner cavity of the partition chamber 2.

[0055] With the above structure, by driving the circulating drive component 4, the three sliding rods 23 slide cyclically along the figure-eight slideway 22, causing the three sliding rods 23 to drive the dispersing members 24 at the bottom to slide cyclically along the trajectory of the number "8", so that the liquid raw materials entering the reaction kettle 1 fall on the three cyclically sliding dispersing members 24. The liquid raw materials are dispersed by the dispersing members 24, and the dispersed liquid raw materials are mixed more evenly with each other, thereby improving the effect of raw material mixing and stirring, and further improving the efficiency of the polyaluminum ferric sulfate processing process.

[0056] It should be noted that the circulating drive component 4 includes turntables 41 rotatably arranged oppositely at the top of the inner wall of the partition chamber 2. The outer circumferential wall of the turntable 41 is evenly provided with clamping grooves 42. The inner cavity of the clamping groove 42 is clamped with a clamping block 43 fixedly connected to the top end of the sliding rod 23, and the clamping block 43 fits on the top of the figure-eight slideway 22. Three clamping grooves 42 are evenly opened on the outer circumferential wall of each turntable 41, and the clamping block 43 is driven to move through the clamping grooves 42. The clamping grooves 42 at each position on the two turntables 41 are in opposite positions. When the two turntables 41 rotate oppositely to the adjacent position, one of the clamping grooves 42 on the two turntables 41 converges. A limiting clamping member 44 that fits on the bottom of the figure-eight slideway 22 is sleeved on the outer wall of the sliding rod 23. The clamping block 43 is fixedly installed at the top end of the sliding rod 23, and the limiting clamping member 44 is fixedly sleeved outside the sliding rod 23 through the mounting hole opened in the center.

[0057] With the above structure, during the process of the sliding rod 23 sliding along the inner wall of the figure-eight slideway 22, the sliding rod 23 drives the limiting clamping member 44 and the clamping block 43 to slide along the upper and lower surfaces of the figure-eight slideway 22 respectively. The limiting clamping member 44 and the clamping block 43 limit the sliding process of the sliding rod 23 to prevent the sliding rod 23 from separating from the figure-eight slideway 22, thereby ensuring the stability of the dispersion treatment after the raw materials enter the reaction kettle 1.

[0058] A lever member 46 for adjusting the direction of the sliding rod 23 is rotatably arranged on the top of the sealing plate 21. Since the trajectory of the figure-eight slideway 22 requires the sliding rod 23 to be toggled to the corresponding direction at the convergence to ensure the figure-eight cyclic sliding. A direction-changing component 5 for driving the lever member 46 to swing reciprocally is arranged in the inner cavity of the partition chamber 2, and a rotation drive member 6 for driving the two turntables 41 to rotate oppositely is arranged in the inner cavity of the partition chamber 2.

[0059] With the above structure, the shifting rod member 46 reciprocates by means of the direction-changing assembly 5. When one of the sliding rods 23 slides to the adjacent position of the two turntables 41, that is, at this time the sliding rod 23 is simultaneously in the card slots 42 of the two turntables 41. At this time, according to the direction in which the direction-changing assembly 5 toggles the shifting rod member 46, the sliding rod 23 slides along the corresponding direction of the figure-eight-shaped slideway 22 by the limit of the shifting rod member 46, thereby ensuring that the three sliding rods 23 continuously disperse the raw materials along the figure-eight-shaped slideway 22, further ensuring the efficiency of the raw material dispersion process and improving the effect of raw material mixing.

[0060] In addition, the direction-changing assembly 5 includes a driving shaft 51 rotatably arranged on the sealing plate 21. Bearings are embedded and installed on the top of the sealing plate 21. One end of the driving shaft 51 is embedded and installed in the bearing, so that the driving shaft 51 rotates on the sealing plate 21. The driving half gear 52 is fixedly sleeved outside the driving shaft 51 through the opened mounting hole. The outer wall of the driving shaft 51 is sleeved with the driving half gear 52, and the outer wall of the movable shaft 45 where the shifting rod member 46 is located is sleeved with the driven half gear 53. Bearings are embedded and installed on the top of the sealing plate 21. One end of the movable shaft 45 is embedded and installed inside the bearing. One end of the shifting rod member 46 is fixedly sleeved outside the movable shaft 45 through the opened mounting hole. The driven half gear 53 is fixedly sleeved outside the movable shaft 45 through the opened mounting hole.

[0061] A transmission rack 54 slidably arranged on the sealing plate 21 is arranged between the driven half gear 53 and the driving half gear 52, and both sides of the transmission rack 54 are meshed with the driven half gear 53 and the driving half gear 52 respectively, and the transmission rack 54 slides on the sealing plate 21. Teeth are evenly arranged on both sides of the transmission rack 54, and the teeth on both sides are meshed with the driven half gear 53 and the driving half gear 52 respectively. The outer wall of the driving shaft 51 is sleeved with a guide rail 55, and a slider 56 is slidably arranged on the outer wall of the guide rail 55. A driving member 57 is rotatably arranged on the inner wall of the separation bin 2, and the free end of the driving member 57 is rotatably connected to the slider 56.

[0062] The motor is fixed on the inner wall of the separation bin 2 through a machine cover. One end of the driving member 57 is fixedly sleeved outside the output shaft of the motor through the opened mounting hole. The other end of the driving member 57 is movably sleeved outside the transmission rod 58 through the opened mounting hole, and the other end of the transmission rod 58 is vertically fixed on the surface of the slider 56. Guide grooves are opened on both side surfaces of the guide rail 55, and guide blocks are fixedly installed on both side surfaces of the slider 56. The slider 56 is sleeved outside the guide rail 55, and the slider 56 drives the guide blocks to fit and slide on the inner wall of the guide groove.

[0063] With the above structure, during the process of adjusting the direction of the sliding rod 23, the motor is connected to the power supply through a wire, so that the output shaft of the motor drives one end of the driving member 57 to rotate continuously. The driving member 57 drives the slider 56 to slide on the guide rail 55 through the transmission rod 58. After the guide rail 55 is stressed, it drives the driving shaft 51 to swing reciprocally. The driving half gear 52 swings reciprocally with the driving shaft 51, drives the driven half gear 53 to swing reciprocally through the transmission rack 54. The driven half gear 53 drives the lever member 46 to swing reciprocally through the movable shaft 45, and adjusts the direction of the sliding rod 23 through the lever member 46, ensuring that the three sliding rods 23 slide cyclically along the eight-shaped slideway 22, so that the dispersing member 24 continuously disperses the raw materials, thereby improving the mixing effect during the reaction process of the raw materials.

[0064] In addition, a support seat 17 is fixedly installed on the top of the sealing plate 21, a guide rod 19 is fixedly installed on the top of the support seat 17, and a moving seat 18 connected to the transmission rack 54 is sleeved outside the guide rod 19. Two mutually parallel guide rods 19 are fixedly installed on the top of the support seat 17. The moving seat 18 is movably sleeved outside the guide rod 19 through the opened mounting holes, so that the moving seat 18 fits and slides on the outer wall of the guide rod 19.

[0065] With the above structure, through the sliding fit between the moving seat 18 and the guide rod 19, the deviation of the direction of the transmission rack 54 is avoided, thereby ensuring the stability of the cyclic sliding process of the three sliding rods 23.

[0066] Sealing plates 25 are symmetrically and rotatably arranged in the inner cavity of the eight-shaped slideway 22. The two through holes of the eight-shaped slideway 22 are blocked by the sealing plates 25. The sealing plates 25 rotate in the through holes of the eight-shaped slideway 22 along with the driving shaft 61.

[0067] The rotary driving member 6 includes two driving shafts 61 rotatably arranged at the top of the inner wall of the separation chamber 2. A gear 62 is sleeved on the outer wall of each driving shaft 61, and the two gears 62 are meshed with each other. The motor is fixed on the top of the separation chamber 2 through a machine cover, and the output shaft of the motor penetrates through the top of the separation chamber 2 and is fixedly connected to one end of the corresponding driving shaft 61. The gear 62, the turntable 41 and the sealing plate 25 are sequentially sleeved on the outer part of the driving shaft 61 from top to bottom.

[0068] Furthermore, the flow track 3 includes a sealing pillar 31 arranged in the inner cavity of the reaction kettle 1. A spiral slideway 32 fixed to the inner wall of the reaction kettle 1 is sleeved on the outer wall of the sealing pillar 31. The top of the sealing pillar 31 is conical. After the raw materials are dispersed, they fall on the conical top of the sealing pillar 31 and then fall on the spiral slideway 32 along the inclined surface of the conical top. The spiral slideway 32 is spirally fixed on the inner wall of the reaction kettle 1, the sealing pillar 31 is fixedly installed on the inner wall of the spiral slideway 32, and the spiral slideway 32 drives the sealing pillar 31 to be fixed above the conical eddy current chamber 9.

[0069] With the above structure, the spiral chute 32 increases the residence time of the liquid in the reactor 1, thereby prolonging the heating treatment time and ensuring the product quality of polyaluminum ferric sulfate. The spiral chute 32 improves the fluidity of the liquid.

[0070] The outer wall of the dispersing member 24 is circumferentially and evenly provided with liquid dispersing slots 26. Through the liquid dispersing slots 26 circumferentially spirally arranged on the outer wall slope of the dispersing member 24, the raw materials falling on the dispersing member 24 are evenly dispersed, thus improving the effect of liquid dispersion treatment and further enhancing the effect of raw material mixing.

[0071] The top of the outer wall of the reactor 1 is circumferentially and evenly embedded with a feed inlet 13. An exhaust gas discharge port is provided on the outer wall of the reactor 1, a discharge port is provided at the bottom of the outer wall of the reactor 1, and a pipe communicating with the finished product tank is installed on the outer wall of the reflux pipe 11. Plug members are provided on each of the feed inlet, discharge port and exhaust gas discharge port to ensure the sealing performance during the processing.

[0072] The working principle of the reactor for preparing polyaluminum ferric sulfate from the waste catalyst recovery tail liquid in this embodiment is as follows: First, the driving motors of the driving member 57 and the gear 62 and the circulation pump 10 are simultaneously connected to the power supply through wires, so that the two meshing gears 62 drive the two turntables 41 to rotate relatively through the drive shaft 61, and the turntable 41 drives the slide rod 23 to slide on the inner wall of the eight-shaped chute 22 through the card slot 42. At the same time, the driving member 57 drives the slider 56 to slide on the guide rail 55 through the transmission rod 58, so that the guide rail 55 drives the driving shaft 51 to swing reciprocally after being stressed, and the driving half gear 52 swings reciprocally along with the driving shaft 51, drives the driven half gear 53 to swing reciprocally through the transmission rack 54, and the driven half gear 53 drives the lever member 46 to swing reciprocally through the movable shaft 45, and the direction of the slide rod 23 is adjusted through the lever member 46.

[0073] Then, the raw materials are put into the interior of the reactor 1 through the feed inlet at the top of the outer wall of the reactor, so that the raw materials to be mixed are dispersed by the dispersing member 24. The dispersed raw materials fall on the sealing support column 31, and the raw materials fall along the spiral chute 32 to the outside of the conical vortex chamber 9. Due to the power of the circulation pump 10, the liquid in the inner cavity of the reactor 1 enters the inner cavity of the conical vortex chamber 9 through the eccentric surge holes 14, enters the circulation pump 10 through the reflux hopper 15 below the conical vortex chamber 9, and is brought into the inner cavity of the reflux pipe 11 by the circulation pump 10.

[0074] After repeated circulation and mixing of the raw materials for multiple times, they are discharged to the outside through the pipe communicating with the finished product tank on the reflux pipe 11, and finally crystallization processing is carried out.

[0075] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings. These 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. Therefore, it should not be construed as a limitation to the present invention.

[0076] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0077] In the present invention, unless otherwise clearly defined and limited, the terms "mount", "set", "connect", "fix", "swivel connection", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. It may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reactor for preparing polyaluminum ferric sulfate from the waste catalyst recovery tail liquid, comprising a reactor (1), characterized in that: A circulation pump (10) is provided at the bottom of the reactor (1). The liquid inlet of the circulation pump (10) is communicated with the bottom of the reactor (1), and the liquid outlet of the circulation pump (10) is communicated with the top of the outer wall of the reactor (1). A conical eddy chamber (9) is embedded in the inner cavity of the reactor (1). Eccentric surge holes (14) are symmetrically formed on both sides of the outer wall of the conical eddy chamber (9). A return hopper (15) disposed in the inner cavity of the reactor (1) is fixedly connected to the bottom of the conical eddy chamber (9), and the return hopper (15) is communicated with the inner cavity of the conical eddy chamber (9). The bottom of the return hopper (15) is communicated with the liquid inlet of the circulation pump (10). A heater (16) is provided on the outer wall of the reactor (1). A flow track (3) for extending the liquid flow time is provided in the inner cavity of the reactor (1). The liquid outlet of the flow track (3) is communicated with the eccentric surge hole (14), and the flow track (3) is located above the conical eddy chamber (9). A partition chamber (2) is fixedly connected to the top of the reactor (1). A sealing plate (21) is provided at the docking portion of the partition chamber (2) and the reactor (1). An eight-shaped slideway (22) in the shape of an Arabic numeral "8" is embedded at the top of the sealing plate (21). Slide rods (23) are evenly slidably disposed in the inner cavity of the eight-shaped slideway (22). A dispersing member (24) extending into the inner cavity of the reactor (1) is provided at the bottom end of the slide rod (23). A circulation driving assembly (4) for driving the slide rod (23) to slide cyclically along the eight-shaped slideway (22) is provided in the inner cavity of the partition chamber (2). The circulation driving assembly (4) includes turntables (41) rotatably provided towards each other at the top of the inner wall of the partition chamber (2). Card slots (42) are evenly formed on the circumferential outer wall of the turntable (41). A clamping block (43) fixedly connected to the top end of the slide rod (23) is clamped in the inner cavity of the card slot (42), and the clamping block (43) is attached to the top of the eight-shaped slideway (22). A limiting clamping member (44) attached to the bottom of the eight-shaped slideway (22) is sleeved on the outer wall of the slide rod (23). A lever member (46) for adjusting the direction of the slide rod (23) is rotatably provided at the top of the sealing plate (21). A direction-changing assembly (5) for driving the lever member (46) to swing reciprocally is provided in the inner cavity of the partition chamber (2). A rotation driving member (6) for driving the two turntables (41) to rotate towards each other is provided in the inner cavity of the partition chamber (2).

2. The reactor for preparing polyaluminum ferric sulfate from the waste catalyst recovery tail liquid according to claim 1, characterized in that: The direction-changing component (5) includes a driving shaft (51) rotatably arranged on the sealing plate (21). An active half gear (52) is sleeved on the outer wall of the driving shaft (51). A driven half gear (53) is sleeved on the outer wall of the movable shaft (45) where the lever rod (46) is located. A transmission rack (54) slidably arranged on the sealing plate (21) is arranged between the driven half gear (53) and the active half gear (52). The two sides of the transmission rack (54) are respectively meshed with the driven half gear (53) and the active half gear (52). A guide rail (55) is sleeved on the outer wall of the driving shaft (51). A slider (56) is slidably arranged on the outer wall of the guide rail (55). An active member (57) is rotatably arranged on the inner wall of the partition chamber (2). The free end of the active member (57) is rotatably connected to the slider (56).

3. The reactor for preparing polyaluminum ferric sulfate from the waste catalyst recovery tail liquid according to claim 2, characterized in that: A support base (17) is fixedly installed on the top of the sealing plate (21). A guide rod (19) is fixedly installed on the top of the support base (17). A moving seat (18) connected to the transmission rack (54) is sleeved on the outside of the guide rod (19).

4. The reactor for preparing polyaluminum ferric sulfate from the waste catalyst recycling tail liquid according to claim 1, wherein: Closing plates (25) are symmetrically and rotatably arranged in the inner cavity of the eight-shaped slideway (22).

5. The reactor for preparing polyaluminum ferric sulfate from the waste catalyst recycling tail liquid according to claim 4, characterized in that: The rotation driving member (6) includes two driving shafts (61) rotatably arranged on the top of the inner wall of the partition chamber (2). A gear (62) is sleeved on the outer wall of each driving shaft (61). The two gears (62) are meshed with each other. The gear (62), the turntable (41) and the closing plate (25) are sequentially sleeved on the outside of the driving shaft (61) from top to bottom.

6. The reactor for preparing polyaluminum ferric sulfate from the waste catalyst recycling tail liquid according to claim 1, wherein: The flow-through track (3) includes a sealing support column (31) arranged in the inner cavity of the reaction kettle (1). A spiral slideway (32) fixed to the inner wall of the reaction kettle (1) is sleeved on the outer wall of the sealing support column (31). The top of the sealing support column (31) is conical.

7. The reactor for preparing polyaluminum ferric sulfate from the waste catalyst recycling tail liquid according to claim 1, wherein: Liquid-dispersing grooves (26) are evenly formed in the circumferential direction on the outer wall of the dispersing member (24).

8. The reactor for preparing polyaluminum ferric sulfate from the waste catalyst recovery tail liquid according to claim 1, wherein: Feeding ports (13) are evenly embedded in the circumferential direction on the top of the outer wall of the reaction kettle (1).

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