A ternary precursor raw material batching device and batching method thereof

Abstract

The present invention discloses a ternary precursor raw material batching equipment and a batching method thereof, comprising a tank body, a liquid feed pipe, a stirring structure, a sulfate feed hopper, a discharge pipe, a filter kettle body, a feed pipe, a discharge pipe, an upper cover, a mesh basket, and a filter bag, and also comprises: a graded discharge mechanism, comprising a guide baffle, a diverter plate, a rebound structure, and a crushing structure; a side flow guide structure, comprising a guide arc bucket and a material upsetting structure, the end of the guide arc bucket extending to the lateral direction of the stirring blade at the top of the stirring rod; an inner and outer layer separation structure, comprising an inner guide pipe, a seal, and a pressure seat, the horizontal part of the filter bag is pressed and fixed by the seal and the pressure seat; a bag body adjustment structure, comprising an inner fixing part, a matching plate, and a tensioning part. The present invention can ensure the proportion of sulfate in the liquid, allow the filter bag to be evenly attached to the metal mesh basket, and ensure the production quality of the front-end raw materials of the ternary precursor.

Description

Technical Field

[0001] The invention relates to the preparation of ternary precursor raw materials, in particular to a ternary precursor raw material batching device and a batching method thereof. Background Art

[0002] The ternary precursor material is nickel cobalt manganese hydroxide, which is made from a sulfuric acid mixed solution formed by mixing nickel sulfate, cobalt sulfate, manganese sulfate and solvent as raw material, and then auxiliary agents (ammonia solution, alkaline solution) are added for stirring and mixing. The stirred solution is pumped into a concentrator for concentration, and when the concentrator reaches the specified liquid level, the filter liquid valve is opened to discharge the clear liquid, and the overflow hole valve is opened to discharge the material. The discharged material is a qualified product after washing, drying, screening and packaging. In the batching process of the sulfuric acid mixed solution, the liquid raw material in the raw material kettle is pumped into the required batching equipment with the help of a flow meter, and then solid raw materials such as nickel sulfate, cobalt sulfate and manganese sulfate are added to the batching equipment and stirred and mixed to obtain the required sulfuric acid mixed solution. The obtained sulfuric acid mixed solution can be temporarily stored in a pressure stabilizing tank after pressure filtration and fine filtration.

[0003] In the existing preparation process of mixed solution, the following problems are prone to occur: 1. In the process of feeding sulfate, the whole bag of sulfate will clump, which often affects the feeding. Even after it is manually broken by a wooden hammer, it is still much larger than normal particles, so it is necessary to extend the normal dissolution and mixing time, otherwise the concentration of the sulfuric acid mixed solution will not meet the requirements for preparing the ternary precursor; 2. During the filtration process, the pressure is tested at any time, and the filter bag is replaced when the pressure is too high. During the replacement of the filter bag, the filter bag needs to be evenly spread in the metal frame to ensure the uniformity of the pressure. Due to the uneven level of the installers, the filter bag is prone to wrinkles during the pressurization process after installation, which can easily cause multiple discharge positions of the filter bag to fold and clog, resulting in misjudgment of the pressure detection equipment. Frequent opening of the cover is required for confirmation, which greatly delays the filtration progress of the solution. Summary of the invention

[0004] The present invention provides a ternary precursor raw material batching equipment and a batching method thereof, which can evenly crush particles and completely stir and mix with required liquid during the preparation stage of sulfuric acid solution, thereby ensuring the proportion of sulfate in the liquid and the production quality of the front-end raw materials of the ternary precursor. It can also be divided into two sections for sealing, thereby reducing the explosion phenomenon that may occur when opening the cover to replace the filter bag. At the same time, it can also fine-tune the spread area of ​​the filter bag after the filter bag is installed, so that the filter bag can be evenly attached to the metal mesh basket, so that the pressure at each position is balanced, and it is not easy to misjudge the pressure, which can effectively solve the above-mentioned problems.

[0005] The present invention is achieved in that:

[0006] A ternary precursor raw material batching equipment, comprising a tank body for mixing sulfuric acid solution, a plurality of liquid feed pipes are arranged on the top of the tank body, a stirring structure inserted into the tank body is arranged on the top of the tank body, a sulfate feed hopper is arranged on the side of the stirring structure, a feed pipe is arranged at the bottom of the tank body, the feed pipe is connected to a filter kettle body, a feed pipe connected to the tank body containing sulfate solution is arranged on one side of the filter kettle body, a discharge pipe is arranged at the lower end of the right side of the filter kettle body, an upper cover is movably arranged on the top of the filter kettle body, a net basket is fixedly connected to the inside of the filter kettle body, and a filter bag is movably arranged in the net basket, characterized in that the ternary precursor raw material batching equipment also includes:

[0007] A graded unloading mechanism, wherein the sulfate feed hopper comprises a middle unloading area and two lateral installation areas, and the graded unloading mechanism comprises a guide baffle arranged on the inner side of the middle unloading area, the guide baffle is an inverted V-shaped structure, a plurality of holes are opened on the guide baffle, a diverter plate is movably arranged at the bottom of both sides of the guide baffle toward one side of the lateral installation area, the diverter plate is fixed by a rebound structure, and a crushing structure is arranged on the inner side of the lateral installation area, when particles pour onto the guide baffle, particles with a particle size smaller than the hole directly enter the tank body through the guide baffle, and particles with a particle size larger than the hole fall to the top of the diverter plate through the guide baffle, and the particles falling onto the diverter plate are crushed by the crushing structure, so that the particles can enter the tank body through the diverter plate;

[0008] A side flow guide structure, wherein a plurality of stirring blades are arranged on the stirring rod of the stirring structure, and the side flow guide structure comprises two guide arc buckets arranged on the inner top of the tank body, wherein the guide arc buckets are located below the projection position of the diverter plate, and there is a material stirring structure fixed to the tank body on both sides of the guide arc buckets, and the ends of the guide arc buckets extend to the lateral direction of the stirring blades at the top of the stirring rod, and when particles fall to the guide arc buckets through the diverter plate, the guide arc buckets are pressed to squeeze the material stirring structure, and the material stirring structure vibrates the guide arc buckets and transports the particles on the guide arc buckets to the stirring blades at the top of the stirring rod;

[0009] The inner and outer layer separation structure comprises an inner guide tube connected to the feed tube, a seal is connected to the bottom of the inner guide tube, the seal is locked on the upper edge of the mesh basket and forms a first closed space with the mesh basket, a pressure seat is connected to the lower side of the upper cover, when the upper cover is locked on the upper side of the filter kettle body, the pressure seat is fixed on the upper side of the seal, a second closed space is formed between the upper cover, the pressure seat and the seal, and the horizontal part of the filter bag is pressed and fixed by the seal and the pressure seat;

[0010] The bag body adjustment structure comprises matching rods on the four outer edges of the filter bag, a connecting buckle is arranged at the center of the bottom of the filter bag, and the bag body adjustment structure comprises four internal fixing parts arranged on the inner side of the mesh basket. When the filter bag is embedded in the mesh basket, the matching rods slide down along the internal fixing parts, and a matching plate fixed to the connecting buckle is arranged at the bottom of the mesh basket. A tensioning piece is arranged on the side of the matching plate away from the connecting buckle, and the tensioning piece extends and is fixed to the bottom of the inner part of the filter kettle body. When the matching rod of the filter bag is fully matched with the internal fixing part, the tensioning piece drives the matching plate to move downward, so that the matching plate tensions and straightens the filter bag downward.

[0011] As a further improvement, the rebound structure includes two rows of rebound frames arranged in the lateral installation area, the top of the rebound frame is fixedly connected to a bonding plate, the bonding plate is locked under the diverter plate, and an outer sealing canopy is glued to one side of the top surface of the diverter plate close to the guide baffle.

[0012] As a further improvement, the rebound frame includes a guide cylinder arranged on the inner wall of the lateral installation area, a correction cylinder is arranged above the guide cylinder, and a rebound spring is arranged on the inner side of the guide cylinder and the correction cylinder, and the rebound spring is locked to the bottom of the bonding plate.

[0013] As a further improvement, the crushing structure includes a driving motor arranged in the upper inner half of the lateral mounting area, and a pressing plate is arranged at the bottom of all the driving motors, and a plurality of pressing nails are welded at the bottom of the pressing plate.

[0014] As a further improvement, the material lifting structure includes an arc tube arranged on the top of the tank body, and a plurality of hanging springs are cantilevered at the bottom of the arc tube, and the bottom of the hanging springs is fixedly connected to the guide arc bucket.

[0015] As a further improvement, the inner guide tube includes a cross-section connected to the feed pipe, the cross-section is connected to a lower through section through a guide section, a first filter baffle is arranged between the cross-section and the guide section, a second filter baffle is arranged between the guide section and the lower through section, and an external connecting pipe is arranged at one end of the guide section away from the first filter baffle, the external connecting pipe is extended to the outside of the filter kettle body and is communicated with a suction device.

[0016] As a further improvement, the seal includes a sealing disk locked on the upper edge of the mesh basket by a plurality of rivets, an inner sealing ring is fixedly connected to the bottom of the sealing disk, the inner sealing ring is attached to the upper edge of the mesh basket, the pressure seat includes an outer sealing ring arranged on the outside of the inner sealing ring, two lower sealing rings are arranged below the upper cover, the two lower sealing rings are arranged at intervals, and the feed pipe and the external connecting pipe are arranged in the gap between the lower sealing rings.

[0017] As a further improvement, the internal fixing part includes a limit seat arranged on the inner edge of the basket, and a long groove flush with the vertical section of the filter bag is opened on the inner side of the limit seat. The limit seat includes a fixing strip located at the inner edge of the basket, and an elastic pad is arranged on both sides of the fixing strip. The two elastic pads are clamped on the outer peripheral surface of the mating rod.

[0018] As a further improvement, the tensioning member includes a guide ring fixedly connected to the bottom of the outer part of the basket, and the bottom of the matching plate is connected to a telescopic motor, and the telescopic motor is fixedly connected to the bottom of the inner part of the filter kettle.

[0019] The present invention also provides a ternary precursor raw material batching method, using the above-mentioned ternary precursor raw material batching equipment, comprising the following steps:

[0020] S1: Liquid raw materials are added through the liquid feed pipe, and solid raw materials are added through the sulfate feed hopper. Sulfate particles of conventional particle size can directly enter the tank through the guide baffle to merge with the liquid raw materials, and sulfate particles larger than the conventional particle size slide down the guide baffle to the diverter plate;

[0021] S2: The particles that slide down onto the diverter plate are continuously pressed by the crushing structure until they meet the requirements and then fall from the diverter plate to the guide arc bucket on the side flow guide structure, which creates pressure on the guide arc bucket, thereby causing the guide arc bucket that is movably arranged on the material shaking structure to start shaking up and down, and continuously transport the particles downward;

[0022] S3: The particles transported downward collide with the stirring blades at the top and are completely broken up into particles of the required size. After being broken up, the particles that meet the requirements will be integrated into the liquid. After being stirred by the stirring structure for a preset time, the solution is passed into the filter kettle through the feed pipe;

[0023] S4: The solution passing through the filter kettle is first filtered through the inner guide tube and then enters the filter bag of the mesh basket. The filter bag is tensioned downward by the tensioning piece. The matching rods on the outer edges of the filter bag slide down evenly along the inner fixing piece, and the filter bag is fully opened.

[0024] S5: The solution flows along the filter bag to the outside of the basket and is output to the outside through the discharge pipe to be used as raw material for the preparation of ternary precursors.

[0025] The beneficial effects of the present invention are:

[0026] In some existing mixed solution batching tanks, most of them directly pour a whole bag of sulfate particles into the tank through the opening on the tank. If agglomerated particles are found during the pouring process, they are crushed with a mallet or by hand. Although this can solve the problem of agglomeration, on the one hand, the feeding speed is too fast and it is difficult for workers to react. On the other hand, workers are prone to bring in some impurities when intervening, which affects the purity of the solution. Therefore, the present invention provides a graded feeding mechanism and a guide baffle at the position of the sulfate feed hopper. Sulfate particles of conventional particle size can directly enter the tank through the guide baffle and be mixed and stirred with the solution. Agglomerates due to improper storage or quality problems of the product itself will slide down along the guide baffle to the position of the diverter plate, and are continuously pressed by the crushing structure above the diverter plate until the particles meet the requirements and fall from the position of the diverter plate. Therefore, while not blocking the falling of conventional particles, the whole agglomerated particles can also enter the tank more promptly, thereby avoiding some particles from being stuck at the feeding position and unable to fall, thereby affecting subsequent feeding.

[0027] Although the agglomerated particles are processed by the diverter plate and the crushing structure, due to the continuous feeding, the number of times the crushing structure can be reciprocated is limited, and it is difficult to crush the particles into the required particle size in a short time. Therefore, the present invention sets a side flow guide structure at the lower end of the diverter plate. The particles falling through the guide baffle can directly fall into the solution, while the particles falling through the diverter plate will fall into the side flow guide structure. The falling particles will form pressure on the guide arc bucket, thereby causing the guide arc bucket movably arranged on the material shaking structure to start shaking up and down, continuously transporting the particles downward, and they can be separated during the transportation process. The end of the guide arc bucket is opposite to the stirring blade at the top of the stirring rod, and the transported particles will be directly cut, so that the particles that originally did not meet the requirements can be better mixed and reacted with the solution, and the prepared liquid meets the requirements for the preparation of the ternary precursor.

[0028] In the existing bag filters for solutions, it is inevitable to replace the filter bags after using them for a period of time. Generally, the filter bags are fixed in position by the pressure introduced. However, if the position of the filter bags is not installed properly, it is easy to cause wrinkles in the filter bags. These wrinkles will not be smoothed out as the pressure of the filter bags is applied. Instead, the filter holes will overlap and cover, thereby increasing the pressure in the kettle body. Therefore, the present invention provides a bag body adjustment structure, firstly, a matching rod and a connecting buckle are added to the conventional filter bag, and at the same time, an internal fixing member and a matching plate are correspondingly provided on the mesh basket, so that the four sides of the filter bag can be fixed after installation, and the bottom of the filter bag is connected to the matching plate. Since the top of the filter bag is fixed, the filter bag guided by the internal fixing member can be moved downward by moving the tensioning member downward, thereby tightening the entire filter bag, smoothing the position where there may be wrinkles, and the entire filter bag is in a relatively flat state, thereby ensuring the pressure stability in the filter chamber and avoiding the phenomenon of misjudgment.

[0029] During the replacement of the filter bag, the upper cover needs to be opened. However, if the gas in the filter kettle is not exhausted, it is often easy to explode, and the material is easily sprayed everywhere, which is very difficult to clean. Therefore, the present invention sets the original single sealed cavity as a double sealed cavity. First, the introduced gas is directly introduced into the mesh basket through a separate inner guide tube, and is not directly exposed to the upper cover, so that it will not explode directly when the upper cover is opened, and there can be a certain buffer time and space. Since a pressure seat is provided in the upper cover, after the pressure seat is opened, the restricting force in the mesh basket has actually gradually decreased, and it will not explode directly during slow ventilation, thereby avoiding the phenomenon of "blowout" of the filtered particles, and making the air pressure in the equipment more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of a ternary precursor raw material batching equipment of the present invention.

[0032] Figure 2 It is a schematic diagram of the internal structure of the tank body of the present invention.

[0033] Figure 3 The present invention Figure 2 Schematic diagram of the top view structure.

[0034] Figure 4 The present invention Figure 3Cross-section view at AA in the middle.

[0035] Figure 5 The present invention Figure 4 Magnified view of area B.

[0036] Figure 6 It is a schematic structural diagram of the sulfate feed hopper of the present invention.

[0037] Figure 7 It is a structural schematic diagram of the graded material discharging mechanism of the present invention.

[0038] Figure 8 It is a structural schematic diagram of the crushing structure of the present invention.

[0039] Fig. 9 It is a structural schematic diagram of the lateral flow guide structure of the present invention.

[0040] Fig.10 It is a three-dimensional structural schematic diagram of the filtering kettle body of the present invention.

[0041] Fig.11 The present invention Fig.10 Top view of the .

[0042] Fig.12 The present invention Fig.11 Cross-sectional view at CC.

[0043] Fig.13 The present invention Fig.12 Isometric side section view.

[0044] Fig.14 The present invention Fig.12 Magnified view of area D in the middle.

[0045] Fig.15 The present invention Fig.12 Magnified view of area E in the middle.

[0046] Fig.16 It is a bottom-up three-dimensional structural schematic diagram of the net basket of the present invention.

[0047] Fig.17 It is a top view of the three-dimensional structure of the net basket of the present invention.

[0048] Fig.18 The present invention Fig.17 Magnified view of region F.

[0049] Fig.19 It is a schematic structural diagram of the cooperation between the upper cover, the sealing member and the pressure seat of the present invention.

[0050] In the figure:

[0051] Tank body 10, liquid feed pipe 20, stirring structure 30, stirring blade 31, sulfate feed hopper 40, middle unloading area 41, lateral installation area 42, clamping gap 43, clamping member 44, graded unloading mechanism 50, guide baffle 51, diverter plate 52, rebound structure 53, rebound frame 531, guide cylinder 5311, deviation correction cylinder 5312, rebound spring 5313, laminating plate 532, outer sealing canopy 533, crushing structure 54, driving motor 541, pressing plate 542, side flow guide structure 60, guide arc bucket 61, material shaking structure 62, arc tube 621, hanging spring 622, filtering kettle body 1, feed pipe 101, outlet Material pipe 102, upper cover 2, mesh basket 3, inner and outer layer separation structure 4, inner guide tube 401, cross-sectional section 4011, guide section 4012, lower through section 4013, first filter baffle 4014, second filter baffle 4015, external connecting pipe 4016, sealing member 402, sealing disk 4021, inner sealing ring 4022, pressure seat 403, outer sealing ring 4031, lower sealing ring 4032, bag body adjustment structure 5, inner fixing member 501, limit seat 5011, fixing strip 50111, elastic pad 50112, matching plate 502, tensioning member 503, guide ring 5031, telescopic motor 5032, matching rod 601. DETAILED DESCRIPTION

[0052] In order to make the embodiments of the present invention, all belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0053] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as referring to the purpose, technical solutions and advantages of the methods. To be more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work indicate or imply relative importance or implicitly indicate the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0054] Reference Figures 1 to 19As shown, a ternary precursor raw material batching equipment comprises a tank body 10 for mixing sulfuric acid solution, a plurality of liquid feed pipes 20 are arranged on the top of the tank body 10, a stirring structure 30 inserted into the tank body 10 is arranged on the top of the tank body 10, a sulfate feed hopper 40 is arranged on the side of the stirring structure 30, a feed pipe is arranged at the bottom of the tank body 10, the feed pipe is connected to a filter kettle body 1, a feed pipe 101 connected to a tank body containing sulfate solution is arranged on one side of the filter kettle body 1, a discharge pipe 102 is arranged at the lower end of the right side of the filter kettle body 1, an upper cover 2 is movably arranged on the top of the filter kettle body 1, a net basket 3 is fixedly connected to the inside of the filter kettle body 1, a filter bag is movably arranged in the net basket 3, and the ternary The precursor raw material batching equipment also includes: a graded unloading mechanism 50, the sulfate feed hopper 40 includes a middle unloading area 41 and two lateral installation areas 42, the graded unloading mechanism 50 includes a guide baffle 51 arranged on the inner side of the middle unloading area 41, the guide baffle 51 is an inverted V-shaped structure, a plurality of holes are opened on the guide baffle 51, and a diverter plate 52 is movably arranged at the bottom of both sides of the guide baffle 51 toward one side of the lateral installation area 42, the diverter plate 52 is fixed by a rebound structure 53, and a crushing structure 54 is arranged on the inner side of the lateral installation area 42. When the particles are poured into the guide baffle 51, the particles with a particle size smaller than the hole directly pass through the guide baffle 51 into the tank body 10, and the particles with a particle size larger than the hole pass through the guide baffle. 51 falls to the top of the diverter plate 52, and the particles falling on the diverter plate 52 are crushed by the crushing structure 54, so that the particles can pass through the diverter plate 52 into the tank body 10; the side flow guide structure 60, the stirring rod of the stirring structure 30 is provided with a plurality of stirring blades 31, the side flow guide structure 60 comprises two guide arc buckets 61 arranged on the top of the inner side of the tank body 10, the guide arc buckets 61 are located below the projection position of the diverter plate 52, and there are two sides of the guide arc buckets 61 with a material-lifting structure 62 fixed to the tank body 10, the end of the guide arc bucket 61 extends to the side of the stirring blade 31 at the top of the stirring rod, when the particles pass through the diverter plate 52 and fall to the guide arc bucket 61, the guide arc bucket 61 is pressed to squeeze the material-lifting structure 62 , the material shaking structure 62 vibrates the guide arc bucket 61 and transports the particles on the guide arc bucket 61 to the stirring blade 31 at the top of the stirring rod; the inner and outer layer separation structure 4 comprises an inner guide tube 401 connected to the feed pipe 101, a sealing member 402 is connected to the bottom of the inner guide tube 401, the sealing member 402 is locked on the upper edge of the mesh basket 3 and forms a first closed space with the mesh basket 3, a pressure seat 403 is connected to the bottom of the upper cover 2, when the upper cover 2 is locked on the top of the filter kettle body 1, the pressure seat 403 is fixed on the top of the sealing member 402, and a second closed space is formed between the upper cover 2, the pressure seat 403 and the sealing member 402, and the horizontal part of the filter bag is pressed and fixed by the sealing member 402 and the pressure seat 403;The bag adjustment structure 5, the four outer edges of the filter bag are provided with matching rods 601, the center of the bottom of the filter bag is provided with a connecting buckle, the bag adjustment structure 5 comprises four inner fixings 501 provided on the inner side of the net basket 3, when the filter bag is embedded in the net basket 3, the matching rods 601 slide down along the inner fixings 501, the bottom of the net basket 3 is provided with a matching plate 502 fixed on the connecting buckle, the matching plate 502 is provided with a tensioning member 503 on the side away from the connecting buckle, the tensioning member 503 extends and is fixed to the bottom of the inside of the filter kettle body 1, when the matching rods 601 of the filter bag are fully matched with the inner fixings 501, the tensioning member 503 drives the matching plate 502 to move downward, so that the matching plate 502 tensions the filter bag downward and straightens it. ;

[0055] Sulfate solution is one of the important raw materials for the ternary precursor. In the process of preparing the sulfate solution, it is necessary to add a variety of solids such as manganese sulfate, nickel sulfate, cobalt sulfate and other auxiliary liquids. In this embodiment, the liquid raw material is added through the liquid feed pipe 20, and the solid raw material is added through the sulfate feed hopper 40.

[0056] In the process of adding raw materials, liquid raw materials are added first, then solid raw materials are added, and finally stirring is performed. Samples are taken after stirring for 2 hours when the feed is more than 200 kg, and samples are taken after stirring for 1 hour when the feed is less than 200 kg. Materials that are less than one bag must be accurately weighed using an electronic scale.

[0057] The length of the top stirring blade 31 is shorter than the length of the lower stirring blade 31 , so that it can better adapt to the side flow guide structure 60 .

[0058] In the process of loading a whole bag of sulfate particles, the whole bag of particles is moved to the position of the tank body 10 by moving a vehicle within the factory area, and then fixed and unloaded with manual assistance. Workers are required to hold the bag body, which is difficult to do. Therefore, in this embodiment, a clamping gap 43 is provided on the top surface of the sulfate feed hopper 40, and a clamping piece 44 is provided on the side of the clamping gap 43 away from the feeding side of the sulfate feed hopper 40. When the cloth bag filled with particles is embedded in the clamping gap 43, one end of the cloth bag is fixed by the clamping piece 44, so that a certain amount of auxiliary support can be provided during the stage of opening the bag with a utility knife.

[0059] In some existing mixed solution batching tanks, most of them directly pour the whole bag of sulfate particles into the tank through the opening on the tank. If agglomerated particles are found during the pouring process, they are crushed with a mallet or by hand. Although this can solve the problem of agglomeration, on the one hand, the material feeding speed is too fast, and it is difficult for workers to react. On the other hand, it is easy for workers to bring in some impurities when they intervene, affecting the purity of the solution. Therefore, this embodiment provides a graded material feeding mechanism 50, and a guide baffle 51 is provided at the position of the sulfate feed hopper 40, so that the sulfate particles of conventional particle size can be The particles directly enter the tank body 10 through the guide baffle 51 and are mixed and stirred with the solution. The particles that are agglomerated due to improper storage or quality problems of the product itself will slide down the guide baffle 51 to the position of the diverter plate 52, and are continuously pressed by the crushing structure 54 arranged above the diverter plate 52 until the particles meet the requirements and fall from the position of the diverter plate 52. In this way, while not blocking the falling of conventional particles, the entire mass of particles can enter the tank body 10 in a relatively timely manner, thereby preventing some particles from being stuck at the discharge position and unable to fall, thereby affecting subsequent discharge.

[0060] When setting the guide baffle 51 and the diverter plate 52, the retention time of the particles needs to be taken into consideration, so as to ensure that the particles can be quickly and smoothly distinguished and transported to the tank body 10. Therefore, the diameter of the holes on the guide baffle 51 of this embodiment is three times the required particle size, and the top of the guide baffle 51 is chamfered. First, the diameter of the holes on the guide baffle 51 is set to three times the required particle size. Secondly, the initial position of the diverter plate 52 is flush with the bottom end of the guide baffle 51, and the diameter of the through holes on the diverter plate 52 is twice the required particle size. The diameter of the through holes on the diverter plate 52 is twice the required particle size, so that fast material discharge and material separation can be completed. If the through holes on the diverter plate 52 are set too small, it is easy to cause particle accumulation on the diverter plate 52, affecting normal material discharge. Therefore, it is not advisable to set the through holes on the diverter plate 52 too small.

[0061] When the particles on the diverter plate 52 are pressed by the crushing structure 54, if the diverter plate 52 is installed in a completely fixed manner, the mobility of the particles is poor, and the massed objects crossing the crushing structure 54 cannot be crushed. Therefore, the rebound structure 53 of this embodiment includes two rows of rebound frames 531 arranged in the lateral installation area 42, and the top of the rebound frame 531 is fixedly connected with a bonding plate 532, and the bonding plate 532 is locked under the diverter plate 52. The diverter plate 52 is fixed on the rebound frame 531 through the provided rebound structure 53. The particles on the diverter plate 52 can jump to a certain extent when being shaken by the extension and retraction of the rebound frame 531, and their position can change, thereby improving the effect of the pressing. In order to avoid a gap between the movable diverter plate 52 and the guide baffle 51, thereby causing material leakage, preferably, an outer sealing cap 533 is glued to the side of the top surface of the diverter plate 52 close to the guide baffle 51, and the outer sealing cap 533 is set on the side of the diverter plate 52 to seal the material, thereby completely blocking the particles and preventing particles that do not meet the required particle size from directly entering the tank body 10.

[0062] In the specific crushing stage, the crushing structure 54 includes a driving motor 541 arranged on the upper inner half of the lateral mounting area 42, and a pressing plate 542 is arranged at the bottom of all the driving motors 541. The same pressing plate 542 is driven by a plurality of driving motors 541 to press the agglomerated particles. In order to improve the pressing effect of the crushing structure 54 on the agglomerated particles, the present embodiment provides pressing nails on the pressing plate 542 at the bottom of the crushing structure 54. The pressing nails can crush the agglomerated particles faster, and the overall crushing effect is better when combined with the diverter plate 52 that continuously moves up and down. Even if there is moisture in the particles, a better crushing and separation effect can be achieved.

[0063] Although the agglomerated particles are processed by the diverter plate 52 and the crushing structure 54, due to the continuous feeding, the number of times the crushing structure 54 can be reciprocated is limited, and it is difficult to crush the particles into the required particle size in a short time. Therefore, the present invention sets a side flow guide structure 60 at the lower end of the diverter plate 52. The particles falling through the guide baffle 51 can directly fall into the solution, while the particles falling through the diverter plate 52 will fall into the side flow guide structure 60. The falling particles will form pressure on the guide arc bucket 61, thereby causing the guide arc bucket 61 movably arranged on the material-lifting structure 62 to start shaking up and down, continuously transporting the particles downward, and they can be separated during the transportation process. The end of the guide arc bucket 61 is opposite to the stirring blade at the top of the stirring rod, and the transported particles will be directly cut, so that the particles that originally did not meet the requirements can be better mixed and reacted with the solution, and the prepared liquid meets the requirements for the preparation of the ternary precursor.

[0064] Among them, the lifting material structure 62 includes an arc tube 621 arranged on the top of the tank body 10, and a plurality of hanging springs 622 are cantilevered at the bottom of the arc tube 621. The bottom of the hanging spring 622 is fixedly connected to the guide arc bucket 61. The arc tube 621 can adapt to the arc-shaped inner surface of the tank body 10, and it can serve as a hanging surface of the hanging spring 622 to fix the spring. In addition, the hanging spring 622 in this embodiment needs to be set thinner to ensure its sensitivity.

[0065] After the particles are fed, they are stirred and then passed into the feed pipe 101. During the filtration of the solution, the prepared sulfate solution is input into the inner guide pipe 401 through the feed pipe 101. By pressurizing the space inside the inner guide pipe 401, the sulfate solution is output through the filter bag to the space between the mesh basket 3 and the filter kettle body 1, and is discharged uniformly through the discharge pipe 102.

[0066] In the existing bag filter of the solution, it is inevitable to replace the filter bag after using it for a period of time. Generally, the filter bag is fixed in position by the pressure introduced. However, if the position of the filter bag is not installed properly, it is easy to cause wrinkles in the filter bag. These wrinkles will not be smoothed out with the pressure of the filter bag, but will cause the filter holes to overlap and cover, thereby increasing the pressure in the kettle. Therefore, the present invention provides a bag adjustment structure 5, firstly, adds a matching rod 601 and a connecting buckle to the conventional filter bag, and at the same time, correspondingly provides an internal fixing member 501 and a matching plate 502 on the basket 3, so that the four sides of the filter bag can be fixed after installation, and the bottom of the filter bag is connected to the matching plate 502. Since the top of the filter bag is fixed, the filter bag guided by the internal fixing member 501 can be moved downward by moving the tensioning member 503 downward, thereby tightening the entire filter bag, so that the position where there may be wrinkles is smoothed, and the entire filter bag is in a relatively flat state, thereby ensuring the pressure stability in the filter chamber and avoiding the phenomenon of misjudgment.

[0067] During the process of the internal fixing part 501 cooperating with the filter bag, the internal fixing part 501 of this embodiment includes a limiting seat 5011 arranged on the inner edge of the net basket 3, and a long groove flush with the vertical section of the filter bag is provided on the inner side of the limiting seat 5011, which adopts a clamping long groove structure, and the filter bag can be vertically inserted from the upper end through the long groove in the limiting seat 5011, so that even a novice can find the right seat during installation, thereby lowering the threshold of operation. In order to improve the adaptability to filter bags of different specifications, the limiting seat 5011 includes a fixing strip 50111 located at the inner edge of the net basket 3, and an elastic pad 50112 is provided on both sides of the fixing strip 50111, and the two elastic pads 50112 are clamped on the outer peripheral surface of the matching rod 601, and the elastic pads 50112 can be selected. Elastic pads 50112 of different specifications are selected and fixed, thereby improving the practicality of the present invention.

[0068] During the process of the tensioning member 503 tightening the filter bag, the tensioning member 503 of the present embodiment includes a guide ring 5031 fixedly connected to the outer bottom of the mesh basket 3, and the bottom of the matching plate 502 is connected to a telescopic motor 5032. The telescopic motor 5032 is fixedly connected to the bottom of the inside of the filter kettle body 1, and is matched with the mesh basket 3 through the guide ring 5031, and is tightly adsorbed on the connecting buckle of the mesh basket 3, and then the entire filter bag is pulled down by the retraction of the telescopic motor 5032. The precision of the pull-down can be controlled by the high-precision telescopic motor 5032 to prevent it from tearing the filter bag. Preferably, the telescopic motor 5032 is a servo motor.

[0069] During the replacement of the filter bag, the upper cover 2 needs to be opened. However, if the gas in the filter kettle body 1 is not exhausted, it is often easy to explode, and the material is easily sprayed everywhere, which is very difficult to clean. Therefore, the present invention sets the original single sealed cavity as a double sealed cavity. First, the introduced gas is directly introduced into the mesh basket 3 through a separate inner guide tube 401, and is not directly exposed to the upper cover 2, so that it will not explode directly when the upper cover 2 is opened, and there can be a certain buffer time and space. Since a pressure seat 403 is provided in the upper cover 2, after the pressure seat 403 is opened, the restricting force in the mesh basket 3 has actually gradually decreased, and it will not explode directly during slow ventilation, thereby avoiding the "blowout" phenomenon of the filtered particles, and making the air pressure in the equipment more stable.

[0070] In the process of using the inner guide tube 401 for guiding, the inner guide tube 401 is not just a connected pipe. The inner guide tube 401 includes a cross-section 4011 connected to the feed pipe 101, and the cross-section 4011 is connected to a lower section 4013 through a guide section 4012. A first filter baffle 4014 is arranged between the cross-section 4011 and the guide section 4012, and a second filter baffle 4015 is arranged between the guide section 4012 and the lower section 4013. The interior of the inner guide tube 401 is divided into three parts, and the first filter baffle 4014 and the second filter baffle 4015 are respectively arranged at the connecting positions of the three parts. The filtering accuracy of the first filter baffle 4014 and the second filter baffle 4015 is weaker than that of the filter bag. Therefore, a baffle can be arranged at the front end to perform preliminary filtering on the filtered liquid, reduce the compliance of the filter bag, and reduce the replacement cycle of the filter bag, so as to achieve the effect of guiding to form an independent space while achieving the effect of preliminary filtering of the filtrate.

[0071] In order to prevent the first filter baffle 4014 and the second filter baffle 4015 from being blocked, an external connecting pipe 4016 is provided at one end of the guide section 4012 away from the first filter baffle 4014, and the external connecting pipe 4016 is extended to the outside of the filter kettle body 1 and is communicated with a suction device. In this embodiment, an external connecting pipe 4016 is provided at a middle position between the first filter baffle 4014 and the second filter baffle 4015, and back-pumping is performed through the external connecting pipe 4016. The aperture of the first filter baffle 4014 is larger than that of the second filter baffle 4015, so the particle layer formed on the second filter baffle 4015 is thicker, so the effect of back-pumping it through the external connecting pipe 4016 is the best. In order to facilitate disassembly, the cross-section 4011 and the guide section 4012, and the guide section 4012 and the external connecting pipe 4016 are movably connected, so that disassembly can be achieved.

[0072] The seal 402 and the pressure seat 403 are both used to fix the horizontal part of the filter bag, but the gap between the seal 402 and the pressure seat 403 is not a flat filter bag part. The filter bag part between the seal 402 and the pressure seat 403 is an arched part, which is not used as a filtering part but as a compensating part. If the tensioning member 503 is in a stretched state during the downward movement, the filter bag may be damaged if it is pulled hard at this time. Therefore, a certain amount of compensation is provided for the downward pull of the filter bag through the arched part, thereby ensuring that the filter bag will not be damaged when it is stretched.

[0073] During the sealing process of the seal 402, the seal 402 includes a sealing disk 4021 locked on the upper edge of the mesh basket 3 by a plurality of rivets, and an inner sealing ring 4022 is fixedly connected to the bottom of the sealing disk 4021. The inner sealing ring 4022 is attached to the upper edge of the mesh basket 3, and is sealed by two layers. One is through the locking of the sealing disk 4021 to achieve hard fixation, and the other is through the fixation of the inner sealing ring 4022 and the soft sealing with the sealing disk 4021, so that the first enclosed space is closed through the sealing effect of the two layers.

[0074] In the process of sealing through the pressure seat 403, it is based on the sealing member 402. Specifically, the pressure seat 403 includes an outer sealing ring 4031 arranged on the outside of the inner sealing ring 4022, and two lower sealing rings 4032 are arranged under the upper cover 2. The two lower sealing rings 4032 are arranged at intervals, and the feed pipe 101 and the external connecting pipe 4016 are arranged in the gap between the lower sealing rings 4032. An outer sealing ring 4031 is also arranged on the outside of the inner sealing ring 4022 to form two closures with the inner sealing ring 4022. Since the outer sealing ring 4031 is also fixed by the inner sealing ring 4022, in order to avoid the poor pressing effect of the sealing disk 4021 on the outer outer sealing ring 4031, the present invention further arranges a lower sealing ring 4032 at the upper end of the outer sealing ring 4031, and the sealing disk 4021 is pressed by the lower sealing ring 4032, thereby realizing the fixation of the outer sealing ring 4031, thereby improving the coordination effect between the outer sealing ring 4031 and the horizontal part of the filter bag.

[0075] Another embodiment of the present invention further provides a ternary precursor raw material batching method, using the above-mentioned ternary precursor raw material batching equipment, comprising the following steps:

[0076] S1: Liquid raw materials are added through the liquid feed pipe 20, and solid raw materials are added through the sulfate feed hopper 40. Sulfate particles of conventional particle size can directly enter the tank body 10 through the guide baffle 51 to merge with the liquid raw materials, and sulfate particles larger than the conventional particle size slide down along the guide baffle 51 to the diverter plate 52;

[0077] S2: The particles sliding down onto the diverter plate 52 are continuously pressed by the crushing structure 54 until the particles meet the requirements and then fall from the diverter plate 52 to the guide arc bucket 61 on the side flow guide structure 60, thereby forming pressure on the guide arc bucket 61, so that the guide arc bucket 61 movably arranged on the material shaking structure 62 starts to shake up and down, and the particles are continuously transported downward;

[0078] S3: The particles transported downward collide with the stirring blades 31 at the top and are completely broken up into particles of a desired size. After being broken up, the particles that meet the requirements are melted into the liquid. After being stirred by the stirring structure 30 for a preset time, the solution is passed into the filter kettle body 1 through the feed pipe.

[0079] S4: The solution passing through the filter kettle 1 is first filtered through the inner guide tube 401 and then enters the filter bag of the basket 3. The filter bag is tensioned downward by the tensioning member 503. The matching rod 601 of the outer edge of the filter bag slides evenly along the inner fixing member 501, and the filter bag is fully opened.

[0080] S5: The solution flows along the filter bag to the outside of the basket 3 and is output to the outside through the discharge pipe 102 to be used as a raw material for preparing the ternary precursor.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ternary precursor raw material batching device, comprising a tank body (10) for mixing sulfuric acid solution, a plurality of liquid feed pipes (20) are arranged on the top of the tank body (10), a stirring structure (30) inserted into the tank body (10) is arranged on the top of the tank body (10), a sulfate feed hopper (40) is arranged on the side of the stirring structure (30), a feed pipe is arranged at the bottom of the tank body (10), the feed pipe is connected to a filter kettle body (1), a feed pipe (101) connected to a tank body containing sulfate solution is arranged on one side of the filter kettle body (1), a discharge pipe (102) is arranged at the lower end of the right side of the filter kettle body (1), an upper cover (2) is movably arranged on the top of the filter kettle body (1), a net basket (3) is fixedly connected to the inside of the filter kettle body (1), and a filter bag is movably arranged in the net basket (3), characterized in that: The ternary precursor raw material batching equipment also includes: The grading material discharging mechanism (50) comprises a middle material discharging area (41) and two lateral mounting areas (42), the grading material discharging mechanism (50) comprises a guide baffle (51) arranged inside the middle material discharging area (41), the guide baffle (51) presenting an inverted V-shaped structure, a plurality of holes being provided on the guide baffle (51), and a diverter plate (52) being movably provided at the bottom of both sides of the guide baffle (51) toward one side of the lateral mounting area (42), the diverter plate (52) 52) is fixed by a rebound structure (53), and a crushing structure (54) is arranged on the inner side of the lateral mounting area (42). When particles are poured onto the guide baffle (51), particles with a particle size smaller than the hole directly pass through the guide baffle (51) into the tank body (10), and particles with a particle size larger than the hole pass through the guide baffle (51) and fall onto the top of the diverter plate (52). The particles falling onto the diverter plate (52) are crushed by the crushing structure (54), so that the particles can pass through the diverter plate (52) and enter the tank body (10); A side flow guide structure (60), wherein a plurality of stirring blades (31) are arranged on the stirring rod of the stirring structure (30), and the side flow guide structure (60) comprises two guide arc buckets (61) arranged on the top of the inner side of the tank body (10), wherein the guide arc buckets (61) are located below the projection position of the diverter plate (52), and there are a material stirring structure (62) fixed to the tank body (10) on both sides of the guide arc buckets (61), and the ends of the guide arc buckets (61) extend to the side of the stirring blades (31) at the top of the stirring rod, and when particles fall to the guide arc buckets (61) through the diverter plate (52), the guide arc buckets (61) are pressed against the material stirring structure (62), and the material stirring structure (62) vibrates the guide arc buckets (61) and transports the particles on the guide arc buckets (61) to the stirring blades (31) at the top of the stirring rod; The inner and outer layer separation structure (4) comprises an inner guide tube (401) connected to the feed tube (101); the bottom of the inner guide tube (401) is connected to a sealing member (402); the sealing member (402) is locked to the upper edge of the mesh basket (3) and forms a first closed space with the mesh basket (3); a pressure seat (403) is connected to the lower side of the upper cover (2); when the upper cover (2) is locked to the upper side of the filter kettle body (1), the pressure seat (403) is fixed to the upper side of the sealing member (402); a second closed space is formed between the upper cover (2), the pressure seat (403) and the sealing member (402); and the horizontal portion of the filter bag is pressed and fixed by the sealing member (402) and the pressure seat (403); A bag body adjustment structure (5), wherein matching rods (601) are arranged on four outer edges of the filter bag, a connecting buckle is arranged at the center of the bottom of the filter bag, and the bag body adjustment structure (5) comprises four internal fixing members (501) arranged on the inner side of the net basket (3); when the filter bag is embedded in the net basket (3), the matching rods (601) slide down along the internal fixing members (501); a matching plate (502) fixedly connected to the connecting buckle is arranged at the bottom of the net basket (3); a tensioning member (503) is arranged on a side of the matching plate (502) away from the connecting buckle; the tensioning member (503) extends and is fixed to the bottom of the inside of the filter kettle (1); when the matching rods (601) of the filter bag are fully matched with the internal fixing members (501), the tensioning member (503) drives the matching plate (502) to move downward, so that the matching plate (502) tensions the filter bag downward and straightens it; The inner fixing member (501) comprises a limit seat (5011) arranged at the inner edge of the net basket (3), a long groove flush with the vertical section of the filter bag is provided on the inner side of the limit seat (5011), the limit seat (5011) comprises a fixing strip (50111) located at the inner edge of the net basket (3), an elastic pad (50112) is provided on both sides of the fixing strip (50111), and the two elastic pads (50112) are clamped on the outer peripheral surface of the matching rod (601); The tensioning member (503) comprises a guide ring (5031) fixedly connected to the outer bottom of the net basket (3); the bottom of the matching plate (502) is connected to a telescopic motor (5032); and the telescopic motor (5032) is fixedly connected to the bottom of the inside of the filtering kettle body (1).

2. The ternary precursor raw material batching equipment according to claim 1, characterized in that: The rebound structure (53) comprises two rows of rebound frames (531) arranged in the lateral mounting area (42); a bonding plate (532) is fixedly connected to the top of the rebound frame (531); the bonding plate (532) is locked under the diverter plate (52); and an outer sealing canopy (533) is glued to one side of the top surface of the diverter plate (52) close to the guide baffle (51).

3. The ternary precursor raw material batching equipment according to claim 2, characterized in that: The rebound frame (531) comprises a guide cylinder (5311) arranged on the inner wall of the lateral installation area (42); a deviation correction cylinder (5312) is arranged above the guide cylinder (5311); a rebound spring (5313) is arranged on the inner side of the guide cylinder (5311) and the deviation correction cylinder (5312); and the rebound spring (5313) is locked to the bottom of the bonding plate (532).

4. The ternary precursor raw material batching equipment according to claim 1, characterized in that: The crushing structure (54) comprises a driving motor (541) arranged at the upper inner half of the lateral mounting area (42), and a pressing plate (542) is arranged at the bottom of each driving motor (541), and a plurality of pressing nails are welded to the bottom of the pressing plate (542).

5. The ternary precursor raw material batching equipment according to claim 1, characterized in that: The lifting structure (62) comprises an arc-shaped tube (621) arranged at the top of the tank body (10), a plurality of hanging springs (622) are cantilevered at the bottom of the arc-shaped tube (621), and the bottoms of the hanging springs (622) are fixedly connected to the guide arc bucket (61).

6. The ternary precursor raw material batching equipment according to claim 1, characterized in that: The inner guide tube (401) comprises a cross-section (4011) connected to the feed tube (101); the cross-section (4011) is connected to a lower through section (4013) via a guide section (4012); a first filter baffle (4014) is arranged between the cross-section (4011) and the guide section (4012); a second filter baffle (4015) is arranged between the guide section (4012) and the lower through section (4013); an external connecting tube (4016) is arranged at one end of the guide section (4012) away from the first filter baffle (4014); the external connecting tube (4016) is extended to the outside of the filter kettle body (1) and is in communication with a suction device.

7. The ternary precursor raw material batching equipment according to claim 1, characterized in that: The sealing member (402) comprises a sealing disk (4021) which is locked to the upper edge of the mesh basket (3) by a plurality of rivets; an inner sealing ring (4022) is fixedly connected to the lower side of the sealing disk (4021); the inner sealing ring (4022) is fitted to the upper edge of the mesh basket (3); the pressure seat (403) comprises an outer sealing ring (4031) arranged on the outer side of the inner sealing ring (4022); two lower sealing rings (4032) are arranged below the upper cover (2); the two lower sealing rings (4032) are arranged at intervals; the feed pipe (101) and the external connecting pipe (4016) are arranged in the gap between the lower sealing rings (4032).

8. A method for batching a ternary precursor raw material, using a ternary precursor raw material batching device according to any one of claims 1 to 7, characterized in that: The steps include: S1: adding liquid raw materials through the liquid feed pipe (20), and adding solid raw materials through the sulfate feed hopper (40); sulfate particles of normal particle size can directly enter the tank body (10) through the guide baffle (51) to merge with the liquid raw materials, and sulfate particles larger than the normal particle size slide down along the guide baffle (51) to the diverter plate (52); S2: The particles that slide down onto the diverter plate (52) are continuously pressed by the crushing structure (54) until the particles meet the requirements and then fall from the diverter plate (52) to the guide arc bucket (61) on the side flow guide structure (60), thereby exerting pressure on the guide arc bucket (61), thereby causing the guide arc bucket (61) that is movably arranged on the material shaking structure (62) to start shaking up and down, thereby continuously conveying the particles downward; S3: The particles transported downward collide with the stirring blades (31) at the top and are completely broken up into particles of a desired size. After being broken up, the particles that meet the desired size are melted into the liquid. After being stirred by the stirring structure (30) for a preset time, the solution is passed into the filter kettle (1) through the feed pipe. S4: the solution passing through the filter kettle (1) is first filtered through the inner guide tube (401) and then enters the filter bag of the net basket (3). The filter bag is tensioned downward by the tensioning member (503), and the matching rod (601) on the outer edge of the filter bag slides evenly along the inner fixing member (501), and the filter bag is fully opened; S5: The solution flows along the filter bag to the outside of the mesh basket (3) and is output to the outside through the discharge pipe (102) to be used as a raw material for preparing the ternary precursor.

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