Device for separating ferrous ions in titanium dioxide solution
By introducing a circulation component and a mixing cylinder design into the device for separating ferrous ions from titanium dioxide liquid, the problems of resource waste and increased costs caused by water dilution are solved, and efficient ferrous ion separation and filtration effects are achieved.
Patent Information
- Application Number
- CN202423211752.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Traditional methods for separating ferrous ions from titanium dioxide solution require water dilution, leading to water waste and increased costs for subsequent concentration.
An apparatus for separating ferrous ions from titanium dioxide liquid is employed, comprising a tank, a filter assembly, a circulation assembly, and a drive assembly. The circulation assembly mixes the filtrate with the slurry, reducing the slurry viscosity. Combined with the design of a mixing cylinder and an inclined channel, the mixing effect is enhanced.
It effectively reduced production costs, improved filtration efficiency, prevented a decrease in titanium solution concentration, and ensured filtration quality.
Smart Images
Figure CN223874610U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to titanium dioxide preparation technical field, concretely relates to a device for separating ferrous ions in titanium dioxide liquid. BACKGROUND
[0002] In the production process of traditional sulfuric acid method titanium dioxide, iron elements in raw materials are dissolved and converted into ferrous sulfate, so that a large amount of ferrous ions are contained in acidolysis slurry, and these ferrous ions need to be removed before the subsequent titanium liquid hydrolysis section, otherwise the quality of titanium dioxide will be affected; in order to remove ferrous ions, the feature that the solubility of ferrous sulfate decreases sharply with the decrease of temperature is often used, and vacuum low-temperature evaporation crystallization method is used to make ferrous crystallize and precipitate, and then solid-liquid separation is carried out through a disc filter, so as to remove ferrous sulfate; however, due to the evaporation of water after evaporation crystallization, the concentration of titanium liquid is increased, and the viscosity is increased, thereby the disc filtration cycle is shortened, and the yield is affected, so it is necessary to dilute with water when carrying out solid-liquid separation, and after dilution with water, not only water resources are wasted, but also the concentration of titanium liquid is reduced, and the subsequent concentration cost is increased.
[0003] In view of the problems existing in the prior art, it is necessary to study a device for separating ferrous ions in titanium dioxide liquid, which has low use cost. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a device for separating ferrous ions in titanium dioxide liquid, which aims to solve the technical problem that the prior art dilutes titanium liquid with water, which not only wastes water resources, but also increases the subsequent concentration cost.
[0005] To solve the above-mentioned technical problems, the technical scheme adopted by the utility model is as follows:
[0006] A device for separating ferrous ions in titanium dioxide liquid, comprising a tank body, a filter assembly, a circulating assembly and a driving assembly,
[0007] The filter assembly is arranged in the tank body,
[0008] The driving assembly comprises a driving shaft and a driving device, the filter assembly is connected to the outer side wall of the driving shaft, the driving shaft and the filter assembly are hollow and communicate with each other, and the driving assembly drives the filter assembly to rotate in the tank body,
[0009] The circulating assembly comprises a storage part, a liquid outlet pipe and a circulating pipe,
[0010] One side of the tank body is connected with a connecting pipe, one end of the connecting pipe communicates with the driving shaft, the other end of the connecting pipe is connected with the upper end of the storage part through the liquid outlet pipe, and the lower part of the storage part is connected with the tank body through the circulating pipe,
[0011] The liquid inlet pipe is connected to the groove body.
[0012] In the utility model, after the material liquid after crystallization is injected into the groove body, the ferrous sulfate crystal is filtered outside the filtering assembly under the filtering of the filtering assembly, and the filtrate enters inside the filtering assembly, thereby entering inside the driving shaft which is communicated with the inside of the filtering assembly, and flowing into the circulating assembly through the connecting pipe, the filtrate flows out from the liquid outlet pipe, enters the storage part, and then flows into the circulating pipe through the storage part, and returns to the inside of the groove body again through the circulating pipe, mixes with the slurry which is just crystallized and filtered into the inside of the groove body, reduces the viscosity of the slurry under the condition of avoiding the reduction of the concentration of titanium, prevents the influence of the viscosity of the slurry on the filtering quality, and reduces the production cost.
[0013] Preferably, the end of the circulating pipe is connected with a mixing cylinder, and the liquid inlet pipe is communicated with the mixing cylinder.
[0014] After the technical scheme is adopted, it should be noted that the mixing cylinder is used for mixing the filtrate after filtering and the slurry after crystallization, so that the filtrate with low viscosity and the slurry after crystallization with high viscosity are fully mixed before entering the groove body for filtering, so that the liquid which is mixed uniformly has better filtering effect when filtered by the filtering assembly, the filter residue formed on the surface of the filtering assembly is more uniform, and the filtering quality is not affected by too much filter residue in the local filtering assembly.
[0015] Preferably, the mixing cylinder comprises a cylinder body and a connecting part, a mixing cavity is arranged in the cylinder body, the connecting part is connected to one side of the cylinder body, a connecting hole is formed in the connecting part, the connecting hole is communicated with the mixing cavity through at least one inclined channel, one end of the circulating pipe is connected to the connecting hole, the liquid inlet pipe penetrates the cylinder body in the axial direction of the cylinder body, the liquid inlet pipe is communicated with the mixing cavity, and the connecting hole is perpendicular to the liquid inlet pipe.
[0016] After the technical scheme is adopted, it should be noted that the inner diameter of the inclined channel is smaller than the inner diameter of the connecting hole, the filtrate in the circulating pipe flows into the connecting hole, and because the diameter of the inclined channel is smaller than the diameter of the connecting hole, the filtrate will flow into the mixing cavity at a higher speed in the inclined channel, and because the inclined channel is inclined, the filtrate flowing into the mixing cavity through the inclined channel will form a large impact in the mixing cavity and generate vortex flow, at this time, the slurry flowing from the liquid inlet pipe collides with the filtrate in the mixing cavity to form vortex flow and uniform mixing, so that the viscosity of the slurry just crystallized is reduced in the mixing cavity, the viscosity of the slurry discharged into the groove body is more uniform, and the filtering effect is better, and in addition, it should be noted that the connecting hole and the inclined channel are both perpendicular to the liquid inlet pipe, so that the filtrate flowing into the mixing cavity through the inclined channel is more likely to form vortex flow, and the mixing effect is increased.
[0017] Preferably, the connecting hole is provided with a connecting cavity, the connecting cavity is arranged along the axial direction of the barrel, and two inclined channels are arranged on the side of the connecting cavity close to the mixing cavity.
[0018] After the technical scheme is adopted, it should be noted that the connecting cavity is arranged to increase the difference between the cross-sectional areas when the connecting cavity enters the inclined channel, so that the speed and pressure of the filtrate entering the inclined channel are further increased, thereby achieving more efficient and more uniform mixing of the slurry entering the mixing cavity from the feed pipe. The two inclined channels are arranged to further improve the mixing efficiency and quality.
[0019] Preferably, the barrel is provided with end covers at both ends, the liquid inlet pipe comprises a first liquid inlet pipe and a second liquid inlet pipe, one end of the first liquid inlet pipe penetrates through the end cover at one end of the barrel and communicates with the mixing cavity, the other end of the first liquid inlet pipe extends outward and is used for feeding, one end of the second liquid inlet pipe penetrates through the end cover at the other end of the barrel and communicates with the mixing cavity, and the other end of the second liquid inlet pipe is connected to the tank.
[0020] After the technical scheme is adopted, it should be noted that the end cover is used to seal both ends of the barrel, and a sealing ring is arranged at the connection between the end cover and the liquid inlet pipe.
[0021] Further, the liquid outlet pipe is provided with a first water pump, the circulating pipe is provided with a second water pump and a first electronic valve, and the first liquid inlet pipe is provided with a second electronic valve.
[0022] After the technical scheme is adopted, it should be noted that the first water pump is used to accelerate filtration, when the first water pump is started, suction will be generated in the inside of the driving shaft and the inside of the filter assembly, so that the slurry in the tank is sucked into the filter assembly to accelerate the filtration of the filter assembly, and the filtered filtrate is pumped into the storage part. The second water pump is used to pump the filtrate in the storage part into the mixing barrel, and to provide an initial speed after the filtrate enters the connecting hole and the connecting cavity, thereby enhancing the mixing effect. The first electronic valve and the second electronic valve are respectively used to control the proportion of the filtrate and the crystallization slurry entering the mixing barrel.
[0023] Further, the filter assembly comprises at least one filter disc arranged along the axial direction of the driving shaft, each filter disc is surrounded by a plurality of sub-filter discs, and the inside of each sub-filter disc is hollow and communicates with the inside of the driving shaft.
[0024] After the technical scheme is adopted, it should be noted that the filter disc is made of any one of a stainless steel filter disc, a ceramic filter disc and a polypropylene filter disc, the sub-filter disc is fan-shaped, a plurality of sub-filter discs surround a circular filter disc, and the filter discs are uniformly distributed along the axial direction of the driving shaft.
[0025] Further, the groove body is provided with a baffle, the baffle is provided with a plurality of bending parts, one side of the filter disc is arranged in the bending part, the bending part is provided with a scraper, the baffle divides the groove body into a filtering groove and a scraping groove, and the scraping groove is provided with a plurality of discharge ports at the lower end.
[0026] After the technical scheme is adopted, it should be noted that, in the process of driving the shaft to drive the filter disc to rotate, the ferrous sulfate crystals attached to the surface of the filter disc have a certain thickness, and in the process of continuous rotation of the rotating disc, the scrapers on both sides of the bending part continuously scrape the ferrous sulfate crystals attached to both sides of the filter disc, the scraped ferrous sulfate crystals fall into the scraping groove, and are discharged through the discharge ports, and a collecting device or a conveying belt can be arranged at the lower end of the discharge ports to transport the ferrous sulfate crystals.
[0027] Further, the driving device is a driving motor, the driving motor is arranged on one side of the filtering groove or the scraping groove, chain wheels are arranged on the output shaft of the driving motor and the driving shaft, chain wheels are engaged with chains, and the driving shaft is driven in a chain transmission mode,
[0028] After the technical scheme is adopted, it should be noted that, one end of the output shaft provided with the chain wheel is closed and solid, so that the torsional resistance and rigidity are increased, the chain wheel structure is adopted to drive the driving shaft to rotate, the bearing capacity is high, and the environmental adaptability is high.
[0029] Further, the filtering groove is provided with connecting pieces at both sides of the upper end, through holes are arranged in the connecting pieces, bearings are arranged at both ends of the connecting shaft, the bearings are arranged in the through holes, one end of the driving shaft close to the connecting pipe is arranged in the through hole, and the other end of the driving shaft passes through the through hole and is provided with the chain wheel.
[0030] After the technical scheme is adopted, it should be noted that the second liquid inlet pipe communicates in the filtering groove through the side wall of the filtering groove.
[0031] Further, the driving motor, the first water pump, the second water pump, the first electronic valve and the second electronic valve are in communication with an external power supply.
[0032] Further, the groove body is provided with a support column at the lower end.
[0033] The working process of the utility model is as follows:
[0034] Filtering of the crystallization slurry: the driving motor is started, the driving motor drives the driving shaft to rotate through chain transmission, the second electronic valve is controlled to be opened, the slurry after crystallization enters the mixing cylinder through the first liquid inlet pipe, and then flows into the filtering groove through the second liquid inlet pipe, then the first water pump is started to accelerate filtration, and the filtrate is pumped into the storage part, the ferrous sulfate crystals are adsorbed on the surface of the filter disc, and the filtration of the ferrous sulfate crystals is completed.
[0035] After the filtrate flows into the storage member, the second water pump is started, the first electronic valve is controlled to be opened, and the second water pump pumps the filtrate in the storage member into the mixing cylinder through the circulating pipe, the filtrate forms a vortex in the mixing cylinder and continuously impacts the crystalline slurry flowing from the first liquid inlet pipe, so that the filtrate and the crystalline slurry are mixed and diluted uniformly in the mixing cylinder, and then are discharged into the filter tank through the second liquid inlet pipe.
[0036] The ferrous sulfate crystals are continuously scraped off by the scraping plates on both sides of the bending part, and the scraped ferrous sulfate crystals fall into the scraping groove and are discharged through the discharge port.
[0037] In summary, the beneficial effects of the present application are as follows:
[0038] 1. The device for separating ferrous ions in titanium dioxide liquid provided by the present application has the advantages that the circulating assembly is arranged, the filtrate flows into the storage member from the liquid outlet pipe, then flows into the circulating pipe through the storage member, and then returns to the inside of the tank body through the circulating pipe, so that the viscosity of the slurry is reduced without reducing the concentration of titanium, the influence of the viscosity of the slurry on the filtration quality is prevented, and the production cost is reduced.
[0039] 2. The device for separating ferrous ions in titanium dioxide liquid provided by the present application has the advantages that the mixing cylinder is arranged, the filtrate accelerates to flow into the mixing cavity in the inclined channel through the connecting hole, the filtrate flowing into the mixing cavity through the inclined channel forms a large impact in the mixing cavity and generates a vortex due to the inclined arrangement of the inclined channel, at this time, the slurry flowing from the liquid inlet pipe collides with the filtrate in the mixing cavity to form a vortex and uniformly mix, the viscosity of the just-crystallized slurry is reduced in the mixing cavity, so that the viscosity of the slurry discharged into the tank body is more uniform, and the filtration effect is better.
[0040] 3. The device for separating ferrous ions in titanium dioxide liquid provided by the present application has the advantages that the connecting cavity is arranged, the difference between the cross-sectional areas when the connecting cavity enters the inclined channel is increased, the speed of the filtrate entering the inclined channel is further increased, and the pressure is increased, so that the slurry entering the mixing cavity from the feeding pipe is mixed more efficiently and more uniformly. BRIEF DESCRIPTION OF DRAWINGS
[0041] The present application will be described by examples and with reference to the accompanying drawings, in which:
[0042] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0043] Figure 2 is a schematic diagram of a groove body structure of the utility model;
[0044] Figure 3 is a schematic diagram of a mixing cylinder structure of the utility model;
[0045] Figure 4 is a schematic diagram of an internal structure of the mixing cylinder of the utility model;
[0046] Figure 5 is a schematic diagram of an internal structure of the connecting hole of the utility model Figure 4 is a sectional view along A-A direction of the utility model;
[0047] Figure 6 is a schematic diagram of an internal structure of the connecting hole of the utility model
[0048] Reference signs:
[0049] 1-groove body, 101-filter groove, 102-scraping groove, 2-driving assembly, 201-driving motor, 202-driving shaft, 203-chain, 3-filter assembly, 301-filter disc, 4-connecting pipe, 5-liquid outlet pipe, 6-storage part, 7-circulation pipe, 8-mixing cylinder, 801-connecting part, 802-cylinder body, 803-end cover, 804-connecting hole, 805-inclined passage, 806-connecting cavity, 9-first liquid inlet pipe, 10-second liquid inlet pipe, 11-first water pump, 12-second water pump, 13-first electronic valve, 14-second electronic valve, 15-connecting part, 16-drainage port, 17-baffle, 18-scraping plate, 19-supporting column. DETAILED DESCRIPTION
[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and indicated in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0051] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.
[0052] The utility model will be described in detail below. Figures 1-6 The utility model will be described in detail below. Embodiment 1
[0053] A device for separating ferrous ions in titanium dioxide liquid, as shown in Figure 1 、 Figure 2 illustrated, comprising tank body 1, filter assembly 3, circulating assembly and driving assembly 2,
[0054] The filter assembly 3 is arranged in the tank body 1,
[0055] The driving assembly 2 comprises a driving shaft 202 and a driving device, the filter assembly 3 is connected to the outer side wall of the driving shaft 202, the driving shaft 202 and the filter assembly 3 are hollow and communicate with each other, and the driving assembly 2 drives the filter assembly 3 to rotate in the tank body 1,
[0056] The circulating assembly comprises a storage part, a liquid outlet pipe 5 and a circulating pipe 7,
[0057] One side of the tank body 1 is connected with a connecting pipe 4, one end of the connecting pipe 4 communicates with the driving shaft 202, the other end of the connecting pipe 4 is connected with the upper end of the storage part through the liquid outlet pipe 5, and the lower part of the storage part is connected with the tank body 1 through the circulating pipe 7,
[0058] The tank body 1 is also connected with a liquid inlet pipe.
[0059] One side of the tank body 1 is connected with a connecting pipe 4, one end of the connecting pipe 4 communicates with the driving shaft 202, the other end of the connecting pipe 4 is connected with the circulating assembly, the circulating assembly comprises a storage part 6, the upper end and the lower part of the storage part 6 are connected with a liquid outlet pipe 5 and a circulating pipe 7 respectively, the liquid outlet pipe 5 is connected with the connecting pipe 4, and the circulating pipe 7 is connected with the tank body 1,
[0060] The tank body 1 is also connected with a liquid inlet pipe.
[0061] The liquid outlet pipe 5 is provided with a first water pump 11, the circulating pipe 7 is provided with a second water pump 12 and a first electronic valve 13, and the liquid inlet pipe is provided with a second electronic valve 14.
[0062] The filter assembly 3 comprises at least one filter disc 301 arranged axially along the driving shaft 202, and each filter disc 301 is enclosed by a plurality of sub-filter discs, which are hollow inside and communicate with the inside of the driving shaft 202.
[0063] The groove body 1 is provided with a baffle 17, the baffle 17 is provided with a plurality of bending portions, the filter disc 301 is arranged in the bending portion, the bending portion is provided with a scraper 18, the baffle 17 divides the groove body 1 into a filtering groove 101 and a scraping groove 102, and the scraping groove 102 is provided with a plurality of discharge ports 16 at the lower end.
[0064] The driving device is a driving motor 201, the driving motor 201 is arranged on one side of the filtering groove 101 or the scraping groove 102, the output shaft of the driving motor 201 and the driving shaft 202 are both provided with a chain wheel, and the chain wheels are engaged with a chain 203.
[0065] The filtering groove 101 is provided with a connecting piece 15 on both sides of the upper end, the connecting piece 15 is provided with a through hole penetrating therethrough, the connecting shaft is provided with a bearing at both ends, the bearings are arranged in the through holes, one end of the driving shaft 202 close to the connecting pipe 4 is arranged in the through hole, and the other end of the driving shaft 202 penetrates through the through hole and is provided with the chain wheel.
[0066] The driving motor 201, the first water pump 11, the second water pump 12, the first electronic valve 13 and the second electronic valve 14 all communicate with an external power supply.
[0067] The groove body 1 is provided with a support column 19 at the lower end.
[0068] In the embodiment, the material liquid after crystallization is injected into the groove body 1, and the ferrous sulfate crystals are filtered outside the filter assembly 3 under the filtering of the filter assembly 3, and the filtrate enters the inside of the filter assembly 3, then enters the inside of the driving shaft 202 which communicates with the inside of the filter assembly 3, and flows into the circulating assembly through the connecting pipe 4, the filtrate flows into the storage piece 6 from the liquid outlet pipe 5, then flows into the circulating pipe 7 through the storage piece 6, and then returns to the inside of the groove body 1 again through the circulating pipe 7, and mixes with the slurry which is just crystallized and filtered into the inside of the groove body 1, so that the viscosity of the slurry is reduced without reducing the concentration of titanium, the influence of the viscosity of the slurry on the filtering quality is prevented, and the production cost is reduced.
[0069] In this embodiment, the first water pump 11 is used to accelerate filtration. When the first water pump 11 is started, suction will be generated inside the drive shaft 202 and inside the filter assembly 3, thereby drawing the slurry in the tank 1 into the filter assembly 3, accelerating the filtration of the filter assembly 3, and pumping the filtered filtrate into the storage container 6. The second water pump 12 is used to pump the filtrate in the storage container 6 into the mixing cylinder 8, and provides a certain initial velocity after the filtrate enters the connecting hole 804 and the connecting cavity 806 to enhance the mixing effect. The first electronic valve 13 and the second electronic valve are used to control the ratio of filtrate and crystallized slurry entering the mixing cylinder 8, respectively. Example 2
[0070] The difference between this embodiment and Embodiment 1 is that, as Figures 3-6 As shown, the end of the circulation pipe 7 is connected to the mixing cylinder 8, and the liquid inlet pipe is connected to the mixing cylinder 8.
[0071] The mixing cylinder 8 includes a cylinder body 802 and a connecting part 801. The cylinder body 802 has a mixing chamber inside. One side of the cylinder body 802 is connected to the connecting part 801. The connecting part 801 has a connecting hole 804. The connecting hole 804 communicates with the mixing chamber through at least one inclined channel 805. One end of the circulation pipe 7 is connected to the connecting hole 804. The liquid inlet pipe passes through the cylinder body 802 axially along the cylinder body 802 and communicates with the mixing chamber. The connecting hole 804 is perpendicular to the liquid inlet pipe.
[0072] Both ends of the cylinder 802 are provided with end caps 803. The liquid inlet pipe includes a first liquid inlet pipe 9 and a second liquid inlet pipe 10. One end of the first liquid inlet pipe 9 passes through the end cap 803 at one end of the cylinder 802 and communicates with the mixing chamber, while the other end extends outward for feeding. One end of the second liquid inlet pipe 10 passes through the end cap 803 at the other end of the cylinder 802 and communicates with the mixing chamber, while the other end is connected to the tank 1. A second electronic valve is provided on the first liquid inlet pipe 9.
[0073] In the embodiment, the mixing cylinder 8 is used to mix the filtered filtrate and the slurry after crystallization is completed, so that the filtrate with low viscosity and the slurry with high viscosity after crystallization are mixed sufficiently before entering the tank 1 for filtration, so that the mixed liquid is filtered by the filter assembly 3, the filtering effect is better, the filter residue formed on the surface of the filter assembly 3 is more uniform, and the filtering quality is not affected by too much filter residue in a local part of the filter assembly 3. The inner diameter of the inclined channel 805 is smaller than the inner diameter of the connecting hole 804. The filtrate in the circulating pipe 7 enters the connecting hole 804, and then, because the hole diameter of the inclined channel 805 is smaller than the hole diameter of the connecting hole 804, the filtrate flows into the mixing chamber at a high speed in the inclined channel 805. Because the inclined channel 805 is inclined, the filtrate flowing into the mixing chamber through the inclined channel 805 forms a large impact and vortex in the mixing chamber. At this time, the slurry flowing from the liquid inlet pipe collides with the filtrate in the mixing chamber to form a vortex and uniform mixing, so that the viscosity of the just-crystallized slurry is reduced in the mixing chamber, so that the viscosity of the slurry discharged into the tank 1 is more uniform, and the filtering effect is better. In addition, it should be noted that the connecting hole 804 and the inclined channel 805 are perpendicular to the liquid inlet pipe, so that the filtrate entering the mixing chamber through the inclined channel 805 is more likely to form a vortex, thereby increasing the mixing effect. Embodiment 3
[0074] The difference between the embodiment and the embodiment 2 is that, as shown in Figure 5 , Figure 6 The connecting hole 804 is provided with a connecting chamber 806, the connecting chamber 806 is arranged along the axial direction of the cylinder body 802, and two inclined channels 805 are arranged on the side of the connecting chamber 806 close to the mixing chamber.
[0075] In the embodiment, the connecting chamber 806 is arranged, the difference between the cross-sectional area of the connecting chamber 806 entering the inclined channel 805 is increased, the speed of the filtrate entering the inclined channel 805 is further increased, and the pressure is increased, so that the slurry entering the mixing chamber from the liquid inlet pipe is mixed more efficiently and uniformly, and the two inclined channels 805 are arranged to further improve the mixing efficiency and quality.
[0076] The working process of the utility model is as follows:
[0077] Filtering of the crystallization slurry: start the driving motor 201, the driving motor 201 drives the driving shaft 202 to rotate through chain transmission, the second electronic valve 14 is controlled to be opened, the slurry after crystallization enters the mixing cylinder 8 through the first liquid inlet pipe 9, and then flows into the filter tank 101 from the second liquid inlet pipe 10, then the first water pump 11 is started to accelerate filtration, and the filtrate is pumped into the storage part 6, and the ferrous sulfate crystals are adsorbed on the surface of the filter disc 301, so that the filtration of the ferrous sulfate crystals is completed.
[0078] The filtrate is circulated: after the filtrate flows into the storage 6, the second water pump 12 is started, the first electronic valve 13 is controlled to be opened, the second water pump 12 pumps the filtrate in the storage 6 into the mixing cylinder 8 through the circulation pipe 7, the filtrate forms a vortex in the mixing cylinder 8 and continuously impacts the crystal slurry flowing from the first liquid inlet pipe 9, so that the filtrate and the crystal slurry are mixed and diluted uniformly in the mixing cylinder 8, and then are discharged into the filter tank 101 through the second liquid inlet pipe 10.
[0079] The ferrous sulfate crystals are scraped: during the continuous rotation of the rotating disc, the scraping plates 18 on both sides of the bending part continuously scrape the ferrous sulfate crystals attached to both sides of the filter disc 301 since one side of the filter disc 301 is always in the concave part of the bending part, the scraped ferrous sulfate crystals fall into the scraping groove 102 and are discharged through the discharge port 16, and a collecting device or a conveying belt can be arranged at the lower end of the discharge port 16 to transport the ferrous sulfate crystals.
[0080] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An apparatus for separating ferrous ions from a solution of titanium dioxide, characterized in that, The filter assembly (3) is arranged in the tank (1), The driving assembly (2) includes a driving shaft (202) and a driving device, the filter assembly (3) is connected to the outer side wall of the driving shaft (202), the driving shaft (202) and the filter assembly (3) are hollow and communicate with each other, and the driving assembly (2) drives the filter assembly (3) to rotate in the tank (1). The circulating assembly includes a storage member (6), a liquid outlet pipe (5) and a circulating pipe (7). One side of the tank (1) is connected with a connecting pipe (4), one end of the connecting pipe (4) communicates with the driving shaft (202), the other end of the connecting pipe (4) is connected with the upper end of the storage member (6) through the liquid outlet pipe (5), and the lower part of the storage member (6) is connected with the tank (1) through the circulating pipe (7). The tank (1) is further connected with a liquid inlet pipe. The end of the circulating pipe (7) is connected with a mixing cylinder (8), and the liquid inlet pipe communicates with the mixing cylinder (8).
2. A device for separating ferrous ions from a solution of titanium dioxide according to claim 1, characterized in that: The mixing cylinder (8) includes a cylinder body (802) and a connecting part (801), the cylinder body (802) is provided with a mixing cavity, one side of the cylinder body (802) is connected with the connecting part (801), the connecting part (801) is provided with a connecting hole (804), the connecting hole (804) communicates with the mixing cavity through at least one inclined channel (805), one end of the circulating pipe (7) is connected in the connecting hole (804), the liquid inlet pipe penetrates the cylinder body (802) in the axial direction of the cylinder body (802), the liquid inlet pipe communicates with the mixing cavity, and the connecting hole (804) is perpendicular to the liquid inlet pipe.
3. A device for separating ferrous ions from a solution of titanium dioxide according to claim 2, characterized in that: The connecting hole (804) is provided with a connecting cavity (806), the connecting cavity (806) is arranged in the axial direction parallel to the cylinder body (802), and two inclined channels (805) are arranged on the side of the connecting cavity (806) close to the mixing cavity.
4. A device for separating ferrous ions from a solution of titanium dioxide according to claim 3, characterized in that: Both ends of the cylinder body (802) are provided with end covers (803), the liquid inlet pipe includes a first liquid inlet pipe (9) and a second liquid inlet pipe (10), one end of the first liquid inlet pipe (9) penetrates the end cover (803) at one end of the cylinder body (802) and communicates with the mixing cavity, the other end of the first liquid inlet pipe (9) extends outward and is used for feeding, one end of the second liquid inlet pipe (10) penetrates the end cover (803) at the other end of the cylinder body (802) and communicates with the mixing cavity, and the other end of the second liquid inlet pipe (10) is connected with the tank (1).
5. A device for separating ferrous ions from a solution of titanium dioxide according to claim 3, characterized in that: The liquid outlet pipe (5) is provided with a first water pump (11), the circulating pipe (7) is provided with a second water pump (12) and a first electronic valve (13), and the first liquid inlet pipe (9) is provided with a second electronic valve (14).
6. A device for separating ferrous ions from a solution of titanium dioxide according to claim 5, characterized in that: The filter assembly (3) includes at least one filter disc (301) arranged in the axial direction of the driving shaft (202), each filter disc (301) is enclosed by a plurality of sub-filter discs, and the sub-filter discs are hollow and communicate with the inside of the driving shaft (202).
7. A device for separating ferrous ions from a solution of titanium dioxide according to any one of claims 1 to 5, characterized in that: 8. A device for separating ferrous ions from a solution of titanium dioxide according to claim 7, characterized in that: The groove body (1) is provided with a partition (17), the partition (17) is provided with a plurality of bending parts, the filter disc (301) is placed in the bending part, the bending part is provided with a scraper (18), the partition (17) divides the groove body (1) into a filter groove (101) and a scraping groove (102), and the scraping groove (102) is provided with a plurality of discharge ports (16) at the lower end.
9. A device for separating ferrous ions from a solution of titanium dioxide according to claim 8, characterized in that: The driving device is a driving motor (201), the driving motor (201) is arranged on one side of the filter groove (101) or the scraping groove (102), chain wheels are arranged on the output shaft of the driving motor (201) and the driving shaft (202), and chains (203) are engaged with the chain wheels.
10. A device for separating ferrous ions from a solution of titanium dioxide according to claim 9, characterized in that: Both sides of the upper end of the filter groove (101) are provided with connecting pieces (15), through holes are arranged in the connecting pieces (15), bearings are arranged at both ends of the connecting shaft, the bearings are arranged in the through holes, one end of the driving shaft (202) close to the connecting pipe (4) is arranged in the through hole, and the other end of the driving shaft (202) penetrates through the through hole and is provided with the chain wheel.