A filter press equipment for producing ternary precursors

Abstract

The present invention discloses a filter press equipment for ternary precursor production, comprising: a frame, a guide bracket is arranged on the upper part, a guide hopper is fixedly installed on the frame at the lower side of the guide bracket; a plurality of filter plates are movably installed on the guide bracket laterally; a clamping mechanism comprises a push hydraulic cylinder, when the piston rod of the push hydraulic cylinder is extended, the plurality of filter plates form a closed connection with each other under the push action of the push hydraulic cylinder; a feed pipe is fixedly installed on the other end of the guide bracket, and is used to pump the material into the filter cloth between two adjacent filter plates; a filter press strengthening mechanism comprises a plurality of annular electromagnets and a plurality of negative pressure pipes, the annular electromagnets are respectively sleeved on the periphery of the corresponding guide pipe and fixedly connected to the inner side of the corresponding filter cloth, and the feed ends of the negative pressure pipes are respectively connected to the filter plates on the inner side of the filter cloth. The present invention can effectively form negative pressure on the filter cake while squeezing the filter cake.

Description

Technical Field

[0001] The invention relates to the technical field of filter pressing for ternary precursor production, and in particular to filter pressing equipment for ternary precursor production. Background Art

[0002] Filter press equipment, especially plate and frame filter press equipment, is a solid-liquid separation equipment commonly used in the production process of ternary precursors. It is a low-energy, high-efficiency intermittent pressurized filtration equipment. It relies on a clamping device to press the filter plate, and then pumps the slurry into the space between the filter cloths of two adjacent filter plates to separate the liquid from the material by pressurization.

[0003] In order to improve the solid-liquid separation efficiency, the existing filter press equipment for ternary precursor production is generally equipped with an airflow booster mechanism or a liquid flow booster mechanism, through which the gas or liquid material is pumped into the inner side of the filter cloth to expand the filter cloth, thereby squeezing the filter cake to further squeeze out the liquid material in the filter cake and then discharge it to improve the solid-liquid separation efficiency. Although the intervention of the airflow booster mechanism or the liquid flow booster mechanism can form a certain improvement in the solid-liquid separation efficiency, the effect of improving the solid-liquid separation efficiency is relatively limited if it only relies on a single boosting method to squeeze the filter cake.

[0004] Therefore, the research purpose of the present invention is to design a filter press equipment for the production of ternary precursors that can effectively form a negative pressure on the filter cake while squeezing the filter cake, thereby discharging the liquid material in the filter cake in both directions to greatly improve the solid-liquid separation efficiency. Summary of the invention

[0005] In view of the technical problems existing in the above-mentioned prior art, the present invention provides a filter press equipment for producing a ternary precursor, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the present invention is:

[0007] A filter press device for producing a ternary precursor, comprising:

[0008] A frame, wherein a corresponding guide bracket is arranged on the upper part of the frame, and a guide hopper with a feed port facing the guide bracket is fixedly installed on the frame at the lower side of the guide bracket;

[0009] A plurality of filter plates are laterally movably mounted on the guide bracket, and corresponding accommodating cavities are respectively provided on opposite sides of two adjacent filter plates, and a material guide pipe located in the middle of the accommodating cavity is respectively penetrated through the middle of the filter plate, and a corresponding filter cloth is respectively fixedly connected to one side of the filter plate with the accommodating cavity, and the middle of the filter cloth is respectively sealed and connected to the material guide pipe;

[0010] The clamping mechanism comprises a push hydraulic cylinder fixedly mounted on one end of the guide bracket. When the piston rod of the push hydraulic cylinder is extended, the plurality of filter plates are closed and connected with each other under the pushing action of the push hydraulic cylinder. After the filter plates are closed and connected with each other, two adjacent material guide pipes are respectively arranged at intervals.

[0011] A feed pipe is fixedly mounted on the other end of the guide bracket, the feed end of the feed pipe is pumped to an external material source, and the discharge end of the feed pipe is connected to a guide pipe of a filter plate at the end, so as to pump the material into between the filter cloths of two adjacent filter plates;

[0012] The filter press strengthening mechanism comprises a plurality of annular electromagnets and a plurality of negative pressure pipes, wherein the annular electromagnets are respectively sleeved on the periphery of the corresponding material guide pipe and fixedly connected to the inner side of the corresponding filter cloth, and the feed ends of the negative pressure pipes are respectively connected to the filter plates on the inner side of the filter cloth for vacuumizing the accommodating cavity on the filter plate, and the plurality of negative pressure pipes are connected in parallel to the corresponding negative pressure mechanism; when the material enters between the filter cloths of two adjacent filter plates, the annular electromagnet is energized, and the distance between the filter cloths of the two adjacent filter plates is reduced under the action of the adsorption force, so as to squeeze and filter out the liquid material in the filter cake, and at the same time, the negative pressure mechanism starts to pump negative pressure to accelerate the extraction of the liquid material in the filter cake.

[0013] The filter press equipment also includes a washing mechanism, which includes a washing liquid distribution pipe connected between the filter cloths of two adjacent filter plates, and the washing liquid distribution pipe is connected to an external washing liquid source through a corresponding washing liquid inlet pipe pump.

[0014] A corresponding lower hopper is fixedly installed on the lower side of the discharge end of the guide hopper, and the top of the lower hopper is folded inward in an inverted L shape and is provided with a corresponding cover, and the discharge end of the guide hopper extends through the cover; a screening plate arranged in a ring shape is rotatably installed on the bottom side of the cover, and a number of corresponding screening holes are evenly distributed on the screening plate, and a plurality of corresponding crushing ridges are fixedly connected to the top surface of the screening plate at intervals, and the screening plate is driven by a rotating drive motor fixedly installed on the guide hopper.

[0015] A plurality of material baffle plates are arranged in the cover at intervals, and the bottoms thereof are arranged at intervals from the crushing material convex edge.

[0016] The screening plate is provided with a plurality of fixed connecting rods fixedly connected to the output shaft end of the rotary drive motor at intervals inwardly.

[0017] The negative pressure pumping mechanism comprises a negative pressure pumping container, a plurality of negative pressure pumping tubes are connected in parallel to the negative pressure pumping container, and a top pump of the negative pressure pumping container is connected to a corresponding vacuum pump.

[0018] A corresponding push plate is fixedly connected to the piston rod end of the push hydraulic cylinder. When the piston rod of the push hydraulic cylinder is extended, the push plate pushes the plurality of filter plates to form a closed connection with each other.

[0019] The side of the annular electromagnet on the filter plate at the end that is not connected to the filter cloth is respectively provided with a corresponding plug-in shaft, and the plug-in shaft can be movably plugged into the filter plate at the end.

[0020] The annular electromagnets on both sides of the filter plate located in the middle are respectively fixedly connected with a guide sleeve and a guide shaft which are movably connected to each other on one side which is not connected to the filter cloth.

[0021] Advantages of the present invention:

[0022] 1) The filter press strengthening mechanism of the present invention includes a plurality of annular electromagnets and a plurality of negative pressure pipes. The annular electromagnets are respectively sleeved on the periphery of the corresponding material guide pipe and fixedly connected to the inner side of the corresponding filter cloth. The feed ends of the negative pressure pipes are respectively connected to the filter plates on the inner side of the filter cloth, and are used to evacuate the accommodating chamber on the filter plate. After the material enters between the filter cloths of two adjacent filter plates, as the feed pressure increases, the liquid material in the material gradually enters the accommodating chamber of the filter plate through the filter cloth. When the feed pressure reaches the set value, the annular electromagnet is energized, and the distance between the filter cloths of the two adjacent filter plates is reduced under the action of the adsorption force, so as to squeeze and filter out the liquid material in the filter cake; at the same time, the negative pressure extraction mechanism starts to extract negative pressure to accelerate the extraction and discharge of the liquid material in the filter cake. Thereby, while squeezing the filter cake, it can effectively form a negative pressure on the filter cake, and discharge the liquid material in the filter cake in two directions, thereby greatly improving the solid-liquid separation efficiency.

[0023] 2) The present invention also has a lower hopper fixedly installed on the lower side of the discharge end of the guide hopper. The top of the lower hopper is folded inward in an inverted L shape and is provided with a corresponding cover. The discharge end of the guide hopper extends through the cover. When the filter cake after filtration is discharged into the guide hopper, the material is initially crushed by collision. The crushed material enters the cover of the lower hopper through the guide hopper. As the sieve plate rotates, the crushing convex edge drives the material through the baffle plate. Under the cooperation of the crushing convex and the baffle plate, the material is sheared and crushed. The crushed material is evenly screened out through the sieve holes on the sieve plate, thereby effectively and directly crushing the filter cake and outputting it, so that the material after solid-liquid separation can directly enter the corresponding drying equipment for drying processing, so as to enhance the use function of the present invention.

[0024] 3) The annular electromagnets on the filter plates at the ends of the present invention are provided with corresponding plug-in shafts on the sides that are not connected to the filter cloth, and the plug-in shafts are respectively movably plugged into the filter plates at the ends; and the annular electromagnets on both sides of the filter plates at the middle that are not connected to the filter cloth are respectively fixed with guide sleeves and guide shafts that form a movable docking with each other. The load of the annular electromagnets is transferred to the filter plates, thereby preventing the filter cloth from being overloaded due to the setting of the annular electromagnets, and ensuring the practical effect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention.

[0026] Figure 2 It is a front view of the present invention.

[0027] Figure 3 for Figure 1 A partial enlarged view of part A.

[0028] Figure 4 Schematic diagram of filter plate assembly.

[0029] Figure 5 It is a cross-sectional view of the filter plate at the end.

[0030] Figure 6 It is a cross-sectional view of the filter plate located in the middle.

[0031] Figure 7 It is a schematic diagram of the structure of the lower hopper.

[0032] Figure 8 This is a cross-sectional view of the lower hopper.

[0033] In the accompanying drawings: frame 1, guide bracket 2, guide hopper 3, filter plate 4, accommodating chamber 401, guide pipe 402, filter cloth 5, clamping mechanism 6, push hydraulic cylinder 601, push plate 602, feed pipe 7, annular electromagnet 801, negative pressure pipe 802, negative pressure container 901, vacuum pump 902, washing mechanism 10, washing liquid distribution pipe 1001, washing liquid inlet pipe 1002, lower hopper 11, cover 12, sieve plate 13, crushing material convex edge 14, rotating drive motor 15, baffle plate 16, fixed connecting rod 17, plug-in shaft 18, guide sleeve 19, guide shaft 20. DETAILED DESCRIPTION

[0034] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the embodiments in conjunction with the accompanying drawings:

[0035] refer to Figure 1-8 , a filter press equipment for producing ternary precursors, comprising:

[0036] A frame 1, wherein a corresponding guide bracket 2 is disposed on the upper portion of the frame 1, and a guide hopper 3 with a feed port facing the guide bracket 2 is fixedly mounted on the frame 1 below the guide bracket 2;

[0037] A plurality of filter plates 4 are laterally movably mounted on the guide bracket 2, and corresponding accommodating cavities 401 are respectively provided on opposite sides of two adjacent filter plates 4, and a material guide pipe 402 located in the middle of the accommodating cavity 401 is respectively penetrated through the middle of the filter plate 4, and a corresponding filter cloth 5 is respectively fixedly connected to one side of the filter plate 4 provided with the accommodating cavity 401, and the middle of the filter cloth 5 is respectively sealed and connected to the material guide pipe 402;

[0038] The clamping mechanism 6 comprises a push hydraulic cylinder 601 fixedly mounted on one end of the guide bracket 2. When the piston rod of the push hydraulic cylinder 601 is extended, the plurality of filter plates 4 are closed and connected with each other under the pressing action of the push hydraulic cylinder 601. After the filter plates 4 are closed and connected with each other, two adjacent guide pipes 402 are respectively arranged at intervals.

[0039] A feed pipe 7 is fixedly mounted on the other end of the guide bracket 2, the feed end of the feed pipe 7 is pumped to an external material source, and the discharge end of the feed pipe 7 is connected to a guide pipe 402 of the filter plate 4 at the end, so as to pump the material into between the filter cloths 5 of two adjacent filter plates 4;

[0040] The filter press strengthening mechanism includes a plurality of annular electromagnets 801 and a plurality of negative pressure pipes 802. The annular electromagnets 801 are respectively sleeved on the periphery of the corresponding material guide pipe 402 and fixedly connected to the inner side of the corresponding filter cloth 5. The feed ends of the negative pressure pipes 802 are respectively connected to the filter plates 4 on the inner side of the filter cloth 5 to evacuate the accommodating chamber 401 on the filter plate 4. The plurality of negative pressure pipes 802 are connected in parallel to the corresponding negative pressure mechanism. When the material enters between the filter cloths 5 of two adjacent filter plates 4, the annular electromagnets 801 are energized to reduce the distance between the filter cloths 5 of two adjacent filter plates 4 under the action of adsorption force, so as to squeeze and filter out the liquid material in the filter cake. At the same time, the negative pressure mechanism starts to pump negative pressure to accelerate the extraction of liquid material in the filter cake.

[0041] The filter press strengthening mechanism of the present invention comprises a plurality of annular electromagnets 801 and a plurality of negative pressure extraction pipes 802. The annular electromagnets 801 are respectively sleeved on the periphery of the corresponding material guide pipes 402 and fixedly connected to the inner side of the corresponding filter cloths 5. The feed ends of the negative pressure extraction pipes 802 are respectively connected to the filter plates 4 on the inner side of the filter cloths 5, and are used to vacuum the accommodating chambers 401 on the filter plates 4. After the material enters between the filter cloths 5 of two adjacent filter plates 4, as the feed pressure increases, the liquid material in the material gradually enters the accommodating chambers 401 of the filter plates 4 through the filter cloths 5. When the feed pressure reaches the set value, the annular electromagnets 801 are energized, and the spacing between the filter cloths 5 of the two adjacent filter plates 4 is reduced under the action of the adsorption force, so as to squeeze and filter out the liquid material in the filter cake; at the same time, the negative pressure extraction mechanism starts to extract the negative pressure to accelerate the extraction of the liquid material in the filter cake. In this way, the filter cake can be squeezed and negative pressure can be effectively formed on the filter cake, so that the liquid material in the filter cake can be discharged in two directions, thereby greatly improving the solid-liquid separation efficiency.

[0042] The filter press device also includes a washing mechanism 10, which includes a washing liquid distributing pipe 1001 connected between the filter cloths 5 of two adjacent filter plates 4, and the washing liquid distributing pipe 1001 is connected to an external washing liquid source through a corresponding washing liquid inlet pipe 1002. After the filter cake is formed, the filter cake can be washed by injecting washing liquid. After washing is completed, the annular electromagnet 801 is energized and the negative pressure pumping mechanism is started to pump negative pressure, so as to enhance the use function of the present invention.

[0043] A corresponding lower hopper 11 is fixedly installed at the lower side of the discharge end of the guide hopper 3. The top of the lower hopper 11 is folded inward in an inverted L shape and provided with a corresponding cover 12. The discharge end of the guide hopper 3 extends through the cover 12. A sieve plate 13 arranged in a ring shape is rotatably installed at the bottom side of the cover 12. A plurality of corresponding sieve holes are evenly distributed on the sieve plate 13, and a plurality of corresponding crushing material ridges 14 are fixedly connected to the top surface of the sieve plate 13 at intervals. The sieve plate 13 is driven by a rotating drive motor 15 fixedly installed on the guide hopper 3. A plurality of baffle plates 16 are arranged at intervals in the cover 12, and the bottoms of the baffle plates 16 are arranged at intervals with the crushing material ridges 14.

[0044] In the process of the filter cake after pressure filtration being discharged into the guide hopper 3, the material is initially crushed by collision, and the crushed material enters the cover 12 of the lower hopper 11 through the guide hopper 3. As the sieve plate 13 rotates, the crushing convex edge 14 drives the material to pass through the baffle plate 16. Under the cooperation of the crushing convex edge 14 and the baffle plate 16, the material is sheared and crushed, and the crushed material is evenly screened out through the sieve holes on the sieve plate 13, so that the filter cake is effectively and directly crushed and output, so that the material after solid-liquid separation can directly enter the corresponding drying equipment for drying processing, so as to enhance the use function of the present invention.

[0045] The sieve plate 13 is provided with a plurality of fixed connecting rods 17 fixed to the output shaft end of the rotation drive motor 15 at intervals. The negative pressure pumping mechanism comprises a negative pressure pumping container 901, a plurality of negative pressure pumping tubes 802 are connected in parallel to the negative pressure pumping container 901, and the top pump of the negative pressure pumping container 901 is connected to the corresponding vacuum pump 902. A corresponding push plate 602 is fixed to the piston rod end of the push hydraulic cylinder 601, and the piston rod of the push hydraulic cylinder 601 is extended, and the push plate 602 pushes the plurality of filter plates 4 to form a closed connection with each other.

[0046] The side of the annular electromagnet 801 on the filter plate 4 at the end that is not connected to the filter cloth 5 is respectively provided with a corresponding plug-in shaft 18, and the plug-in shaft 18 can be movably plugged into the filter plate 4 at the end. The side of the annular electromagnet 801 on both sides of the filter plate 4 at the middle that is not connected to the filter cloth 5 is respectively fixed with a guide sleeve 19 and a guide shaft 20 that form a movable docking with each other. The load of the annular electromagnet 801 is transferred to the filter plate, thereby preventing the filter cloth 5 from being excessively loaded due to the setting of the annular electromagnet 801, so as to ensure the practical effect of the present invention.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A filter press device for producing a ternary precursor, characterized in that: include: A frame (1), wherein a corresponding guide bracket (2) is arranged on the upper part of the frame (1), and a guide hopper (3) with a feed port facing the guide bracket (2) is fixedly mounted on the frame (1) below the guide bracket (2); A plurality of filter plates (4) are laterally movably mounted on the guide bracket (2), a corresponding accommodating cavity (401) is respectively provided on opposite sides of two adjacent filter plates (4), a material guide pipe (402) located in the middle of the accommodating cavity (401) is respectively provided through the middle of the filter plate (4), a corresponding filter cloth (5) is respectively fixedly connected to one side of the filter plate (4) provided with the accommodating cavity (401), and the middle of the filter cloth (5) is respectively sealed and connected to the material guide pipe (402); The clamping mechanism (6) comprises a pushing hydraulic cylinder (601) fixedly mounted on one end of the guide bracket (2); when the piston rod of the pushing hydraulic cylinder (601) is extended, the plurality of filter plates (4) are closed and connected to each other under the pushing action of the pushing hydraulic cylinder (601); after the filter plates (4) are closed and connected to each other, two adjacent material guide pipes (402) are respectively arranged at intervals; A feed pipe (7) is fixedly mounted on the other end of the guide bracket (2); the feed end of the feed pipe (7) is connected to an external material source by a pump, and the discharge end of the feed pipe (7) is connected to a material guide pipe (402) of a filter plate (4) located at the end, so as to pump the material into between the filter cloths (5) of two adjacent filter plates (4); The filter press strengthening mechanism comprises a plurality of annular electromagnets (801) and a plurality of negative pressure extraction pipes (802), wherein the annular electromagnets (801) are respectively sleeved on the periphery of the corresponding material guide pipe (402) and fixedly connected to the inner side of the corresponding filter cloth (5), and the feed ends of the negative pressure extraction pipes (802) are respectively connected to the filter plates (4) on the inner side of the filter cloth (5) for vacuumizing the accommodating chamber (401) on the filter plate (4), and the plurality of negative pressure extraction pipes (802) are connected in parallel to the corresponding negative pressure extraction mechanism; when the material enters between the filter cloths (5) of two adjacent filter plates (4), the annular electromagnets (801) are energized, and the distance between the filter cloths (5) of the two adjacent filter plates (4) is reduced under the action of the adsorption force, so as to squeeze and filter out the liquid material in the filter cake, and at the same time, the negative pressure extraction mechanism starts to extract the negative pressure, so as to accelerate the extraction of the liquid material in the filter cake; A corresponding lower hopper (11) is fixedly mounted on the lower side of the discharge end of the guide hopper (3); the top of the lower hopper (11) is folded inwardly in an inverted L shape and is provided with a corresponding cover (12); the discharge end of the guide hopper (3) extends through the cover (12); a sieve plate (13) arranged in a ring shape is rotatably mounted on the bottom side of the cover (12); a plurality of corresponding sieve holes are evenly distributed on the sieve plate (13), and a plurality of corresponding crushing ridges (14) are fixedly connected to the top surface of the sieve plate (13) at intervals; the sieve plate (13) is driven by a rotary drive motor (15) fixedly mounted on the guide hopper (3); A plurality of material blocking plates (16) are arranged at intervals in the cover (12) and have bottoms spaced apart from the material crushing convex edge (14); A corresponding plug-in shaft (18) is provided on the side of the annular electromagnet (801) on the filter plate (4) at the end that is not connected to the filter cloth (5), and the plug-in shaft (18) can be movably plugged into the filter plate (4) at the end; The sides of the annular electromagnets (801) on both sides of the filter plate (4) located in the middle that are not connected to the filter cloth (5) are respectively fixedly connected with a guide sleeve (19) and a guide shaft (20) that are movably connected to each other.

2. The filter press equipment for producing a ternary precursor according to claim 1, characterized in that: The filter press equipment further comprises a washing mechanism (10), wherein the washing mechanism (10) comprises a washing liquid distribution pipe (1001) connected between the filter cloths (5) of two adjacent filter plates (4), and the washing liquid distribution pipe (1001) is connected to an external washing liquid source via a corresponding washing liquid inlet pipe (1002) pump.

3. The filter press equipment for producing a ternary precursor according to claim 1, characterized in that: The screening plate (13) is provided with a plurality of fixed connecting rods (17) fixedly connected to the output shaft end of the rotary drive motor (15) at intervals inwardly.

4. The filter press equipment for producing a ternary precursor according to claim 1, characterized in that: The negative pressure extraction mechanism comprises a negative pressure extraction container (901), a plurality of negative pressure extraction tubes (802) are connected in parallel to the negative pressure extraction container (901), and a top pump of the negative pressure extraction container (901) is connected to a corresponding vacuum pump (902).

5. The filter press equipment for producing a ternary precursor according to claim 1, characterized in that: A corresponding push plate (602) is fixedly connected to the piston rod end of the push hydraulic cylinder (601); when the piston rod of the push hydraulic cylinder (601) is extended, the push plate (602) pushes the plurality of filter plates (4) to form a closed connection with each other.

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