Zirconium sulfate waste liquid filtering device and filtering process

Abstract

The invention relates to the technical field of zirconium sulfate waste liquid filtering, and specifically discloses a zirconium sulfate waste liquid filtering device, comprising a shell, an end cover connected to the shell and a cylinder, a liquid inlet component arranged on the upper side of the end cover, a liquid outlet component arranged on the lower side of the cylinder, and a precipitation crushing and regeneration component arranged on the liquid outlet component inside the shell, wherein the shell is provided with an air inlet near the outer side of the precipitation crushing and regeneration component, and a liquid outlet pipe is provided at the bottom of the cylinder; the precipitation crushing and regeneration component comprises a connecting plate fixedly connected to the inside of the shell, a motor arranged on the end cover, a precipitation crushing part coaxially connected to the motor and acting on the liquid outlet component, an extension shaft coaxially connected to the output shaft of the motor, a flow guide component installed inside the shell for guiding flow, and a filter screen and a filter screen cleaning and reaction component arranged on the extension shaft. The device solves the problem that the traditional zirconium sulfate waste liquid filtering device does not consider the influence of participating impurity ions and the influence of the filtering effect of the filter screen, thereby causing the filtering effect to deteriorate.

Description

Technical Field

[0001] The present application relates to the technical field of zirconium sulfate waste liquid filtration, and specifically discloses a zirconium sulfate waste liquid filtration device and a filtration process. Background Art

[0002] Zirconium sulfate is an inorganic compound with a variety of uses and properties. It is usually used in the fields of catalyst carriers, electronic materials, ceramic materials, high-temperature lubricants, etc.

[0003] The zirconium sulfate production process involves multiple steps, from raw material processing to purification of the final product:

[0004] Zircon: Zircon is one of the main raw materials for the production of zirconium sulfate, and its main component is zirconium silicate. Zircon needs to be crushed and ground to obtain particles with a moderate particle size, which is helpful for the subsequent chemical reaction process;

[0005] Sintering or alkali fusion: Zircon is first treated by sintering or alkali fusion, and then washed with water to remove impurities. Leaching precipitation: The treated zircon reacts with sulfuric acid or hydrochloric acid to produce a zirconium sulfate solution. In this step, it may be necessary to control the reaction temperature and time, and add a catalyst to increase the reaction rate. Evaporation crystallization: Zirconium sulfate is crystallized from the solution by evaporating the solvent, and then recrystallized to increase the purity of the product. Product purification and washing to remove sodium: After the ammonia precipitation step, the precipitate needs to be washed to remove impurities such as sodium ions. Recrystallization: In order to further improve the purity of zirconium sulfate, multiple recrystallization processes are usually carried out.

[0006] Wastewater and waste gas treatment: Wastewater and waste gas generated during the production process need to be properly treated to reduce the impact on the environment;

[0007] About zirconium sulfate waste liquid:

[0008] It is necessary to describe in detail the reaction process: the treated zircon is reacted with sulfuric acid or hydrochloric acid to generate a zirconium sulfate solution. In this step, controlling the reaction temperature and time and adding a catalyst can increase the reaction rate, and then ammonia precipitation: adding ammonia to the zirconium sulfate solution to precipitate the zirconium ions in the form of zirconium hydroxide. This step helps to separate the zirconium sulfate from the solution;

[0009] Waste liquid treatment: Filtration and separation: The reaction mixture is filtered and separated to obtain zirconium sulfate solution and solid residue. This step is a key part of waste liquid treatment because it directly affects the purity of the final product.

[0010] Finally, a stabilizer, such as anhydrous sodium sulfate, is added to the zirconium sulfate solution to improve the stability of the solution, followed by crystallization of the zirconium sulfate solution to obtain zirconium sulfate crystals;

[0011] It should be made clear that most of the solid residues are ammonium salts, that is, in the previous step, whether it is hydrochloric acid or sulfuric acid, it is an acid environment, and when ammonia water is added, precipitation occurs. The main purpose is to remove the influence of impurities such as sodium ions;

[0012] As to why ammonia water is used as the core of the oxidation reaction, it is because when ammonia water is added, in order to remove the acid environment, the excess ammonia water will cause the entire zirconium sulfate solution to become waste liquid (because of the excess ammonia water). However, for the zirconium sulfate solution in this link, when it enters the crystallization nodule, it needs to evaporate and crystallize. At this time, the ammonia water will volatilize, leaving a relatively pure zirconium sulfate solution.

[0013] Therefore, in summary, for zirconium sulfate solution waste liquid, the core is to remove the solid impurities in the zirconium sulfate solution waste liquid;

[0014] Chinese patent publication number CN213895377U discloses a residue filtering device for ammonium sulfate waste liquid, including a colloid filter, a fully automatic tubular filter, a reflux tank, and a sedimentation tank. The colloid filter is connected to a filtrate pump through a pipeline, the filtrate pump is connected to a fully automatic tubular filter through a pipeline, the fully automatic tubular filter is connected to a reflux tank through a pipeline, the reflux tank is connected to a reflux pump through a pipeline, and the reflux pump is connected to a fully automatic tubular filter and a sedimentation tank through pipelines. The residue in the ammonium sulfate waste liquid is effectively filtered out to achieve solid-liquid separation;

[0015] The problems with the above patents are:

[0016] 1. The nature of the reaction is not taken into account: adding ammonia water to produce precipitation does not take into account the essence of the reaction, that is, the reaction rate and whether the reaction is sufficient;

[0017] 2. For the above-mentioned fully automatic tubular filter, the filter effect variation diagram is not taken into account. For solid-liquid separation filtration, it is necessary to consider that impurities block the filter screen and affect the filtration effect;

[0018] In summary, the existing residue filtering device for zirconium sulfate waste liquid does not deal with residual impurities such as sodium ions, nor does it deal with the problem that the effect of the filter screen will drop sharply due to impurity clogging. This will lead to the deterioration of the filtering effect of the zirconium sulfate waste liquid, affect the subsequent crystallization process, and affect the formation and quality of the zirconium sulfate produced. In view of this, the inventor proposes a zirconium sulfate waste liquid filtering device and filtering process. Summary of the invention

[0019] The purpose of the present invention is to solve the problem that the traditional zirconium sulfate waste liquid filtering device does not consider the influence of participating impurity ions and the influence of the filtering effect of the filter net, thereby causing the filtering effect to deteriorate.

[0020] In order to achieve the above object, the present invention provides the following basic scheme:

[0021] A zirconium sulfate waste liquid filtering device comprises a shell, an end cover connected to the shell and a cylinder, a liquid inlet assembly arranged on the upper side of the end cover, a liquid outlet assembly arranged on the lower side of the cylinder, and a precipitation crushing and regeneration assembly arranged on the liquid outlet assembly inside the shell, wherein the shell is provided with an air inlet near the outer side of the precipitation crushing and regeneration assembly, and a liquid outlet pipe is provided at the bottom of the cylinder;

[0022] Sediment crushing and regeneration into components:

[0023] It includes a connecting plate fixedly connected to the inside of the shell, a motor arranged on the end cover, a sediment crushing part coaxially connected to the motor and acting on the liquid outlet component, an extension shaft coaxially connected to the motor output shaft, a flow guide component installed inside the shell for guiding flow, and a filter screen and a filter screen cleaning and reaction component arranged on the extension shaft.

[0024] The principles and effects of this basic solution are:

[0025] 1. Compared with the prior art, the device is a subsequent device for filtering zirconium sulfate waste liquid, that is, the zirconium sulfate waste liquid is filtered again to remove the influence of impurities such as sodium ions in the zirconium sulfate waste liquid again, so as to ensure the purity of the zirconium sulfate solution, which is beneficial to improve the crystallization quality of the subsequent zirconium sulfate solution.

[0026] 2. Compared with the prior art, the first advantage of this device is that it is equipped with a motor, and the output shaft of the motor is used to act on the sediment crushing part, so that the first sediment is crushed first. The purpose of this part is to give priority to removing large-particle sediments, which are formed by the accumulation of many small particles over time. Because large-particle sediments have a greater impact on the filter screen, it is not convenient to clean the filter screen, and the filtering effect cannot be guaranteed. Therefore, the motor is used to deal with large-particle sediments first.

[0027] 3. Compared with the prior art, the second advantage of the present device is that a flow guide component is provided, which diverts the solid-liquid mixture coming out of the liquid outlet component, and a flow guide component is provided. The flow guide component can cooperate with a connecting plate so that the connecting plate and the flow guide component form a relatively sealed space, and the air inlet is used as a gas inlet, so that the gas can act in the relatively sealed space, react with the diverted solid-liquid mixture again, and make the reaction more complete.

[0028] 4. Compared with the prior art, the third advantage of the present device is that: an extension shaft coaxially connected to the motor output shaft, a filter screen and a filter screen cleaning and reaction component are arranged through the extension shaft, the filter screen is used to achieve solid-liquid separation, a filter screen cleaning and reaction component are arranged, and the filter screen cleaning can achieve cleaning of the filter screen under the action of the extension shaft, thereby ensuring the filtering effect of the filter screen, and a reaction component is arranged, and the reaction component has two steps, the first step is the reaction step, when it is the reaction step, the function of the reaction component is to accelerate the generation of precipitation, so that the solid-liquid mixture is in an agitated state for a long time, and the second step is the stop step, when it is the stop step, the function of the reaction component is to accelerate precipitation and quickly achieve solid-liquid separation.

[0029] Furthermore, the shell is threadedly connected to the end cover, a threaded column is provided at the bottom of the end cover, and a connecting thread is provided at the bottom of the shell, and the shell and the cylinder are connected through the connecting thread.

[0030] Furthermore, the liquid inlet component is connected to a system for generating zirconium sulfate solution on the side away from the end cover, and the liquid outlet pipe is connected to a system for obtaining pure zirconium sulfate solution. The system for generating zirconium sulfate solution is used for generating zirconium sulfate solution, and the system for obtaining pure zirconium sulfate solution is used for purifying zirconium sulfate solution.

[0031] Furthermore, the sedimentation crushing part includes a driving gear sleeve coaxially connected to the motor output shaft, a driving gear connected to the driving gear sleeve, a secondary shaft arranged on a connecting plate, and a driven gear sleeved on the secondary shaft and meshing with the driving gear, one end of the secondary shaft is fixedly connected to the connecting plate, and the other end of the secondary shaft passes through a diversion pipe and is provided with a crushing roller.

[0032] Furthermore, the outer peripheral surface of the connecting plate is provided with a guide surface, and a slot is opened inside the shell. The connecting plate is installed in the slot. A plurality of load-bearing columns are fixedly connected to the bottom of the connecting plate, and gaps are left between adjacent load-bearing columns. The free ends of the load-bearing columns are fixedly connected to the inner bottom surface of the slot.

[0033] Furthermore, the guide assembly is an inclined cylinder structure, which is arranged between the shunt pipe and the slot, and a mounting surface is provided on the top of the inclined cylinder structure, on which a secondary shaft mounting hole and a motor output shaft mounting hole are provided, and a ring is fixedly connected to the outer periphery of the bottom of the inclined cylinder structure, and the ring is fixedly connected to the inner wall of the shell, and a through hole for the passage of solid and liquid is provided on the ring.

[0034] Furthermore, the other end of the extension shaft is connected to the bottom of the shell, and a first rotating bearing is provided at the connection between the two. The filter screen is sleeved on the extension shaft, and a second rotating bearing is provided at the connection between the two. The filter screen includes an outer frame, an inner frame, a filter screen body arranged between the outer frame and the inner frame, and an electric switch valve component arranged at the bottom of the outer frame.

[0035] Furthermore, the filter cleaning and reaction component includes a filter cleaning component and a reaction component. The filter cleaning component is a cleaning rod fixedly connected to the side wall of the extension shaft, and the cleaning rod is in contact with the filter body. The reaction component includes a groove opened on the side wall of the extension shaft, a connecting tube sleeved on the extension shaft, a clamping column arranged on the extension shaft for fixing the connecting tube, and an electric key component arranged in the groove for the connecting tube to rotate with the extension shaft. Stirring rods are arranged around the connecting tube.

[0036] Based on the same inventive concept, the present invention also proposes a filtration process of a zirconium sulfate waste liquid filtration device, comprising the following steps:

[0037] S01: installing the device in a system for generating zirconium sulfate solution and a system for obtaining pure zirconium sulfate solution, and then starting the system for generating zirconium sulfate solution to generate zirconium sulfate waste liquid, i.e., a zirconium sulfate solid-liquid mixture;

[0038] S02: The zirconium sulfate solid-liquid mixture enters the device, and the device crushes the solid in the zirconium sulfate solid-liquid mixture, and the liquid reacts with the gas again to fully generate precipitation, and all the precipitation falls on the filter screen. The reaction component accelerates the reaction and fully reacts, and the filter screen cleaning component prevents the filter screen from being blocked;

[0039] S03: obtaining a pure zirconium sulfate solution, the pure zirconium sulfate solution enters a system for obtaining a pure zirconium sulfate solution, and is crystallized by the system for obtaining a pure zirconium sulfate solution to obtain pure zirconium sulfate crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 A schematic structural diagram of a zirconium sulfate waste liquid filtering device and a filtering process proposed in an embodiment of the present application is shown;

[0042] Figure 2 The present invention shows a zirconium sulfate waste liquid filtering device and filtering process proposed in the embodiment of the present invention. Figure 1 A schematic diagram of the structure from another angle;

[0043] Figure 3 The present invention shows a zirconium sulfate waste liquid filtering device and filtering process proposed in the embodiment of the present invention. Figure 2 A schematic diagram of the specific structure of the A part;

[0044] Figure 4The following is a schematic diagram showing the installation of a zirconium sulfate waste liquid filtering device and a filtering process proposed in an embodiment of the present application;

[0045] Figure 5 A schematic diagram of the installation of a zirconium sulfate waste liquid filtering device and a flow guide component in a filtering process proposed in an embodiment of the present application is shown;

[0046] Figure 6 A schematic diagram of the structure of a zirconium sulfate waste liquid filtering device and a connecting disk in a filtering process proposed in an embodiment of the present application is shown;

[0047] Figure 7 A schematic diagram of the installation of a filter screen of a zirconium sulfate waste liquid filtering device and a filtering process proposed in an embodiment of the present application is shown;

[0048] Figure 8 A schematic diagram of the specific structure of a zirconium sulfate waste liquid filtering device and a filter screen in a filtering process proposed in an embodiment of the present application is shown;

[0049] Fig. 9 A schematic diagram of the structure of a zirconium sulfate waste liquid filtering device and an electric switch valve component in a filtering process proposed in an embodiment of the present application is shown;

[0050] Fig.10 The present invention shows a zirconium sulfate waste liquid filtering device and filtering process proposed in the embodiment of the present invention. Figure 7 Schematic diagram of the structure of part B. DETAILED DESCRIPTION

[0051] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0052] The reference numerals in the drawings of the specification include: main pipe 1, mixing box 2, shunt pipe 3, end cover 4, motor 5, driving gear sleeve 6, driving gear 7, connecting plate 8, driven gear 9, secondary shaft 10, slot 11, liquid outlet pipe 12, shell 13, cylinder 14, mounting column 15, liquid outlet pipe 16, extension shaft 17, threaded column 18, system for generating zirconium sulfate solution 19, system for obtaining pure zirconium sulfate solution 20, rolling roller 21, inclined cylinder structure 22, mounting surface 23, secondary shaft mounting hole 24, electric The machine output shaft mounting hole 25, the collar 26, the through hole 27, the inclined surface 28, the guide surface 29, the connecting hole 30, the load-bearing column 32, the groove 33, the groove 34, the connecting cylinder 35, the stirring rod 37, the filter body 38, the outer frame 39, the second rotating bearing 40, the cleaning rod 41, the first rotating bearing 42, the clamping column 43, the first rotating bearing 44, the electric switch valve member 45, the connecting block 4501, the rotating motor 4502, the rotating plate 4504, the cylinder 46, and the connecting column 47.

[0053] Implementation example Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown:

[0054] A zirconium sulfate waste liquid filtering device comprises a shell 13, an end cover 4 connected to the shell 13 and a cylinder 14, a liquid inlet assembly arranged on the upper side of the end cover 4, a liquid outlet assembly arranged on the lower side of the cylinder 14, and a precipitation crushing and regeneration assembly arranged inside the shell 13 on the liquid outlet assembly, wherein the shell 13 is provided with an air inlet near the outer side of the precipitation crushing and regeneration assembly, and a liquid outlet pipe 12 is provided at the bottom of the cylinder 14;

[0055] Structurally:

[0056] The shell 13 is threadedly connected to the end cover 4. A threaded column 18 is provided at the bottom of the end cover 4. A connecting thread is provided at the bottom of the shell 13. The shell 13 is connected to the cylinder 14 through the connecting thread. A system 19 for generating zirconium sulfate solution is connected to the side of the liquid inlet component away from the end cover 4. A system 20 for obtaining pure zirconium sulfate solution is connected to the liquid outlet pipe 12. The system 19 for generating zirconium sulfate solution is used for generating zirconium sulfate solution. The system 20 for obtaining pure zirconium sulfate solution is used for purifying zirconium sulfate solution. A mounting column 15 is provided on the cylinder 14. The mounting column 15 is used to connect the system 20 for obtaining pure zirconium sulfate solution.

[0057] The liquid inlet assembly is used for the zirconium sulfate solid-liquid mixture to enter, and the liquid inlet assembly includes a mixing box 2 and a plurality of branch pipes 3 arranged at the bottom of the mixing box 2, and the branch pipes 3 are installed on the precipitation crushing and regeneration assembly. The mixing box 2 is provided with a main pipe 1, and the main pipe 1 is connected to the zirconium sulfate solution generation system 19.

[0058] Sediment crushing and regeneration into components:

[0059] It includes a connecting plate 8 fixedly connected to the inside of the shell 13, a motor 5 arranged on the end cover 4, a sedimentation crushing part coaxially connected to the motor 5 and acting on the liquid outlet component, an extension shaft 17 coaxially connected to the output shaft of the motor 5, a flow guide component installed in the shell 13 for diverting flow, and a filter screen and a filter screen cleaning and reaction component arranged on the extension shaft 17.

[0060] Specific:

[0061] The sedimentation crushing part includes a driving gear sleeve 6 coaxially connected to the output shaft of the motor 5, a driving gear 7 connected to the driving gear sleeve 6, a secondary shaft 10 arranged on a connecting plate 8, and a driven gear 9 sleeved on the secondary shaft 10 and meshing with the driving gear 7. One end of the secondary shaft 10 is fixedly connected to the connecting plate 8, and the other end of the secondary shaft 10 passes through the shunt pipe 3 and is provided with a crushing roller 21.

[0062] The driving gear 7 drives the driven gear 9 to rotate, so that the secondary shaft 10 rotates, and then the rolling roller 21 rotates. The rolling roller 21 acts on the inside of the diversion pipe 3, so that the solid precipitation in the solid-liquid mixture flowing through the diversion pipe 3 is rolled, so that the large particle precipitation is transformed into small particle precipitation;

[0063] Then, a guide surface 29 is provided on the outer peripheral surface of the connecting disk 8, a slot 11 is opened inside the shell 13, and the connecting disk 8 is installed in the slot 11. A plurality of load-bearing columns 32 are fixedly connected to the bottom of the connecting disk 8, and gaps are left between adjacent load-bearing columns 32. The free ends of the load-bearing columns 32 are fixedly connected to the inner bottom surface of the slot 11, and a connecting hole 30 through which the extension shaft 17 passes is provided on the connecting disk 8.

[0064] The solid-liquid mixture flows downward from the gap;

[0065] In order to limit the flow direction of the solid mixture, a flow guide component is provided, which is an inclined cylinder structure 22. The inclined cylinder structure 22 is arranged between the shunt pipe 3 and the card slot 11. A mounting surface 23 is provided on the top of the inclined cylinder structure 22. A secondary shaft mounting hole 24 and a motor output shaft mounting hole 25 are provided on the mounting surface 23. A collar 26 is fixedly connected to the outer periphery of the bottom of the inclined cylinder structure 22. The collar 26 is fixedly connected to the inner wall of the shell 13. A through hole 27 for solid and liquid to pass through is provided on the collar 26. An inclined surface 28 is provided on the top of the inclined cylinder to prevent solid and liquid from stagnation and accumulation.

[0066] Specifically: the solid-liquid mixture flows through the through hole 27, then enters the card slot 11, and then flows downward from the gap;

[0067] In this process, the flow guide component can cooperate with the connecting plate 8, so that the connecting plate 8 and the flow guide component form a relatively sealed space, and the air inlet is used as a gas inlet, so that the gas can act in the relatively sealed space to react with the diverted solid-liquid mixture again, so that the reaction is more complete;

[0068] Then, the other end of the extension shaft 17 is connected to the bottom of the shell 13, and a first rotating bearing 42 is provided at the connection between the two. The filter screen is sleeved on the extension shaft 17, and a second rotating bearing 40 is provided at the connection between the two. The filter screen includes an outer frame 39, an inner frame, a filter screen body 38 arranged between the outer frame 39 and the inner frame, and an electric switch valve component 45 arranged at the bottom of the outer frame 39.

[0069] The filter cleaning and reaction component includes a filter cleaning component and a reaction component. The filter cleaning component is a cleaning rod 41 fixedly connected to the side wall of the extension shaft 17, and the cleaning rod 41 is in contact with the filter body 38. The reaction component includes a groove 33 opened on the side wall of the extension shaft 17, a connecting tube 35 sleeved on the extension shaft 17, a clamping column 43 arranged on the extension shaft 17 for fixing the connecting tube 35, and an electric key component arranged in the groove 33 for the connecting tube 35 to rotate with the extension shaft 17. Stirring rods 37 are arranged around the connecting tube 35.

[0070] Regarding the electric switch valve member 45: Fig. 9 As shown, it includes a plurality of connection blocks 4501 fixed to the inner bottom of the outer frame 39, a rotating motor 4502 disposed between the connection blocks 4501, and a rotating plate 4504 connected to the rotating motor 4502. When the rotating plate 4504 is opened, liquid passes through. When the rotating plate 4504 is not opened, liquid can only pass through the filter screen and cannot pass through the rotating plate 4504.

[0071] Based on the same inventive concept, the present invention also proposes a filtration process of a zirconium sulfate waste liquid filtration device, comprising the following steps:

[0072] S01: installing the device in the zirconium sulfate solution generating system 19 and the pure zirconium sulfate solution obtaining system 20, and then starting the zirconium sulfate solution generating system 19 to generate zirconium sulfate waste liquid, i.e., zirconium sulfate solid-liquid mixture;

[0073] S02: The zirconium sulfate solid-liquid mixture enters the device, and the device crushes the solid in the zirconium sulfate solid-liquid mixture, and the liquid reacts with the gas again to fully generate precipitation, and all the precipitation falls on the filter screen. The reaction component accelerates the reaction and fully reacts, and the filter screen cleaning component prevents the filter screen from being blocked;

[0074] Specific:

[0075] On the reaction assembly: that is, during the process of accelerating the precipitation, the electric key assembly needs to be started at this time. The electric key assembly includes a cylinder 46 and a connecting column 47 connected to the extended end of the cylinder 46. After the connecting column 47 is extended, it is connected to the connecting cylinder 35, so that the connecting cylinder 35 and the extension shaft 17 are a whole, so that the stirring rod 37 can rotate, and under the action of the stirring rod 37, the precipitation is accelerated;

[0076] On the filter cleaning assembly: At this time, the liquid does not need to be too agitated, and the electric key assembly should not be started. At this time, the connecting tube 35 will not rotate with the rotation of the extension shaft 17, but the stability of the connecting tube 35 needs to be considered. Therefore, a clamping column 43 is provided to ensure the stable position of the connecting tube 35;

[0077] At this time, the stirring rod 37 will not rotate, and the motor 5 needs to slow down, and then the cleaning rod 41 acts on the filter body 38 to prevent the filter holes on the filter body 38 from being blocked. Then, when the motor 5 slows down, the liquid changes from an agitated state to a stable wave state, and then settles on the filter body 38. Since there is no liquid in the electric switch valve part 45 at this time, it cannot flow out. After waiting for a period of reaction, the electric switch valve part 45 is opened, and the liquid passes through and enters S03. The liquid passing through is a pure zirconium sulfate solution with solids filtered out;

[0078] S03: obtaining a pure zirconium sulfate solution. The pure zirconium sulfate solution enters into a system 20 for obtaining a pure zirconium sulfate solution. The system 20 is crystallized to obtain pure zirconium sulfate crystals.

[0079] The device solves the problem that the traditional zirconium sulfate waste liquid filtering device does not consider the influence of participating impurity ions and the influence of the filtering effect of the filter net, which leads to poor filtering effect.

[0080] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A zirconium sulfate waste liquid filtering device, characterized in that: It comprises a shell, an end cover connected to the shell and a cylinder, a liquid inlet assembly arranged on the upper side of the end cover, a liquid outlet assembly arranged on the lower side of the cylinder, and a sediment crushing and regeneration assembly arranged on the liquid outlet assembly inside the shell, wherein the shell is provided with an air inlet near the outer side of the sediment crushing and regeneration assembly, and a liquid outlet pipe is provided at the bottom of the cylinder; The side of the liquid inlet component away from the end cover is connected to a system for generating zirconium sulfate solution, and the liquid outlet pipe is connected to a system for obtaining pure zirconium sulfate solution. The system for generating zirconium sulfate solution is used for generating zirconium sulfate solution, and the system for obtaining pure zirconium sulfate solution is used for purifying zirconium sulfate solution; Sediment crushing and regeneration into components: It includes a connection plate fixedly connected to the inside of the shell, a motor arranged on the end cover, a sediment crushing member coaxially connected to the motor and acting on the liquid outlet assembly, an extension shaft coaxially connected to the motor output shaft, a flow guide assembly installed inside the shell for guiding flow, and a filter screen and a filter screen cleaning and reaction assembly arranged on the extension shaft; The liquid inlet assembly is used for the zirconium sulfate solid-liquid mixture to enter, and the liquid inlet assembly includes a mixing box and a plurality of shunt pipes arranged at the bottom of the mixing box, the shunt pipes are installed on the precipitation crushing and regeneration assembly, and the mixing box is provided with a main pipe, and the main pipe is connected to the zirconium sulfate solution generation system; The sediment crushing part comprises a driving gear sleeve coaxially connected to the motor output shaft, a driving gear connected to the driving gear sleeve, a secondary shaft arranged on a connecting plate, and a driven gear sleeved on the secondary shaft and meshing with the driving gear, one end of the secondary shaft is fixedly connected to the connecting plate, and the other end of the secondary shaft passes through a shunt pipe and is provided with a crushing roller; The outer peripheral surface of the connecting plate is provided with a flow guide surface, the interior of the housing is provided with a slot, the connecting plate is installed in the slot, a plurality of load-bearing columns are fixedly connected to the bottom of the connecting plate, gaps are left between adjacent load-bearing columns, and the free ends of the load-bearing columns are fixedly connected to the inner bottom surface of the slot; The flow guide assembly is an inclined cylinder structure, which is arranged between the shunt pipe and the card slot, and a mounting surface is arranged on the top of the inclined cylinder structure, on which a secondary shaft mounting hole and a motor output shaft mounting hole are opened, and a collar is fixedly connected to the outer periphery of the bottom of the inclined cylinder structure, and the collar is fixedly connected to the inner wall of the shell, and a through hole for solid and liquid to pass through is opened on the collar; The filter screen cleaning and reaction assembly includes a filter screen cleaning assembly and a reaction assembly, wherein the filter screen cleaning assembly is a cleaning rod fixedly connected to the side wall of the extension shaft, and the cleaning rod is in contact with the filter screen body, and the reaction assembly includes a groove opened on the side wall of the extension shaft, a connecting cylinder sleeved on the extension shaft, a clamping column arranged on the extension shaft for fixing the connecting cylinder, and an electric key assembly arranged in the groove for the connecting cylinder to rotate with the extension shaft, and stirring rods are arranged around the connecting cylinder; The other end of the extension shaft is connected to the bottom of the shell, and a first rotating bearing is provided at the connection between the two. The filter screen is sleeved on the extension shaft, and a second rotating bearing is provided at the connection between the two. The filter screen includes an outer frame, an inner frame, a filter screen body arranged between the outer frame and the inner frame, and an electric switch valve member arranged at the bottom of the outer frame.

2. A zirconium sulfate waste liquid filtering device according to claim 1, characterized in that: The shell is threadedly connected to the end cover, a threaded column is provided at the bottom of the end cover, and a connecting thread is provided at the bottom of the shell, and the shell and the cylinder are connected through the connecting thread.

3. A filtering process based on the zirconium sulfate waste liquid filtering device according to claim 2, characterized in that: The following steps are involved: S01: installing the device in a system for generating zirconium sulfate solution and a system for obtaining pure zirconium sulfate solution, and then starting the system for generating zirconium sulfate solution to generate zirconium sulfate waste liquid, i.e., a zirconium sulfate solid-liquid mixture; S02: The zirconium sulfate solid-liquid mixture enters the device, and the device crushes the solid in the zirconium sulfate solid-liquid mixture, and the liquid reacts with the gas again to fully generate precipitation, and all the precipitation falls on the filter screen. The reaction component accelerates the reaction and fully reacts, and the filter screen cleaning component prevents the filter screen from being blocked; S03: obtaining a pure zirconium sulfate solution, the pure zirconium sulfate solution enters a system for obtaining a pure zirconium sulfate solution, and is crystallized by the system for obtaining a pure zirconium sulfate solution to obtain pure zirconium sulfate crystals.

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