A mica sheet pulping device and method

Abstract

The application discloses a mica sheet pulping device and method, and belongs to the technical field of mica papermaking, which comprises a reaction kettle, a first filtering device and a second filtering device which are sequentially arranged, and mica liquid after reaction of the reaction kettle is filtered through the first filtering device and the second filtering device in sequence; wherein the reaction kettle comprises a feeding piece arranged in the inside, the bottom end of the feeding piece is close to the bottom wall of the reaction kettle, and a plurality of discharging parts are arranged on the surface of the feeding piece and used for introducing the reagent into the inside of the reaction kettle; the technical effect achieved by the improved scheme is that: after the concentrated sulfuric acid is introduced, the concentrated sulfuric acid and the mica are allowed to react, the reaction effect is improved, the residual sulfuric acid in the introduction pipeline is reduced, the subsequent filtering operation is facilitated, when the residues are cleaned, the bottom plate is pulled, all the residues can be taken out at one time, the efficiency is higher, and the direct contact of the hands of workers can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of mica papermaking technology, specifically a mica sheet pulping apparatus and method. Background Technology

[0002] Mica paper is a mica product made from crushed mica or mica powder through processes such as pulping, papermaking, forming, and pressing. It can be used as an industrial electrical insulation material.

[0003] Currently, the most widely used methods for preparing mica pulp are calcination chemical pulping and hydraulic pulping. In the chemical pulping method, calcined mica is added to a reaction vessel along with concentrated sulfuric acid to react. The resulting pulp is then filtered before use. However, when adding concentrated sulfuric acid, the inlet pipe is typically extended to the bottom of the reaction vessel. This method can easily lead to the accumulation of concentrated sulfuric acid in the pipe, preventing it from entering the reaction vessel, or it can result in a slow reaction rate and difficulty in accurately controlling the amount of concentrated sulfuric acid added, thus affecting the entire reaction process.

[0004] On the other hand, the residue produced by the reaction of mica powder is very fine particles, which need to be filtered. The filtered residue will be directly adsorbed on the filter screen or filter canister. It is very sticky, similar to clay, which is not only difficult to clean, but also makes it difficult to control the amount of sulfuric acid, which can easily lead to a large amount of sulfuric acid residue. When cleaning the residue, the residual sulfuric acid is also very difficult to clean manually.

[0005] Therefore, a pulping device is needed that allows for easy control of sulfuric acid usage and facilitates filtration and slag removal. Summary of the Invention

[0006] The purpose of this invention is to address the above problems by providing a mica sheet pulping apparatus and method that reduces sulfuric acid residue during the reaction, facilitates control of the amount of sulfuric acid, and makes subsequent residue cleaning easier.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a mica sheet pulping device, comprising a reaction vessel, a first filtration device, and a second filtration device arranged in sequence, wherein the mica liquid after reaction in the reaction vessel is filtered sequentially through the first filtration device and the second filtration device;

[0008] The reactor includes an internal feeder, the bottom of which is close to the bottom wall of the reactor, and several discharge points are provided on its surface to introduce the reagent into the reactor.

[0009] The second filtration device includes a filter barrel, a bottom plate inside the filter barrel, and several first and second support rods arranged in an alternating manner above the bottom plate; the residue condensed in the filter barrel can be removed through the bottom plate.

[0010] The technical effects achieved by the above-mentioned improvement scheme are as follows: After the concentrated sulfuric acid is introduced through the feed component, it can be dispersed to react with the mica, thereby improving the reaction effect and reducing the residue of sulfuric acid in the inlet pipe, which facilitates subsequent filtration operations; when cleaning the residue, all the residue can be removed at once by pulling the bottom plate, which is more efficient and reduces direct manual contact.

[0011] To further refine the structure of the feed component, making it easier to control the timing of the dispersion of the added sulfuric acid in the reactor.

[0012] As a further improvement to the above technical solution, the feed component includes a first pipe and a second pipe, the first pipe being sleeved inside the second pipe, and the first pipe being fixedly connected to the reactor.

[0013] The second pipe is rotatably connected to the reactor, and the reactor is equipped with a handle that drives the second pipe to rotate.

[0014] As a further improvement to the above technical solution, the discharge section includes a first discharge port disposed on the side of the first pipe and a second discharge port disposed on the side of the second pipe.

[0015] The first and second discharge ports are located in corresponding positions and can be selectively connected to each other; when connected, concentrated sulfuric acid overflows into the reactor through the first and second discharge ports to participate in the reaction.

[0016] The technical effect achieved by the above-mentioned improvement scheme is as follows: by setting up a structure with two sleeves, concentrated sulfuric acid can be injected directly into the reactor from the bottom, which plays a role in safe operation. After all the sulfuric acid to be injected has been injected, the first pipe can be rotated to connect the second outlet and the first outlet. The sulfuric acid in the second pipe will overflow into the reactor through the first outlet and the second outlet, so as to ensure that all the added sulfuric acid participates in the reaction and reduces the residual sulfuric acid in the first pipe.

[0017] This is to facilitate the installation of the first and second support rods together, and to make disassembly easier.

[0018] As a further improvement to the above technical solution, the first support rod is provided with several support parts, and the second support rod has several connecting platforms;

[0019] The connecting platform is provided with a first through-part to facilitate the passage of the first support rod, and a second through-part to facilitate the passage of the support part. The shape of the second through-part corresponds to that of the support part.

[0020] The technical effect achieved by the above-mentioned improvement scheme is that the support and connecting platform can be mutually supported to fix the first support rod and the second support rod to each other, which facilitates disassembly and assembly and facilitates the coagulation and deposition of filtered residue.

[0021] To facilitate the quick and easy removal of deposited residue in one go.

[0022] As a further improvement to the above technical solution, an upwardly extending extension rod is provided on the upper side of the base plate. The top of the extension rod has a downwardly recessed docking groove. A through hole is provided on the extension rod to penetrate the docking groove. A guide groove is provided between the through hole and the top surface of the extension rod.

[0023] The second filter device also includes a lifting assembly. A sliding seat is movably disposed on the bottom surface of the lifting assembly. A first hook that can extend into the guide groove and the perforation is fixedly disposed on the bottom surface of the sliding seat so as to lift the bottom plate upward.

[0024] The technical effect achieved by the above-mentioned improvement scheme is that the lifting component can drive the bottom plate to move up and down, and the first hook can be directly hooked with the extension rod set on the bottom plate. It is also very convenient to install the hook. Furthermore, under the push of the bottom plate, all the residue in the filter bucket can be removed at once.

[0025] To facilitate the removal of residue and reduce adhesion between the residue and the bottom plate and filter barrel.

[0026] As a further improvement to the above technical solution, the base plate has fine holes inside, with the outlet of the fine holes located on the upper side of the base plate.

[0027] As a further improvement to the above technical solution, a downward-facing water pipe is fixedly installed on the sliding seat. The water pipe can extend and retract, and can spray water onto the surface of the filter bucket.

[0028] The filter barrel is located inside the outer casing, and its bottom is connected to a drive source that drives its rotation.

[0029] The technical effect achieved by the above-mentioned improvement scheme is that, through the fine holes and water spray from the water pipe, water can be allowed to penetrate between the deposited residue and the surface of the filter bucket and bottom plate, which plays a role in lubrication and separation, reduces the adhesion of residue, and makes it easier to remove the residue.

[0030] To ensure an independent working environment and maintain the filtration efficiency of the filter cartridge during centrifugal filtration.

[0031] As a further improvement to the above technical solution, a top cover is detachably provided on the top surface of the outer casing, and the top cover has a feed pipe connected to the first filter device.

[0032] A scraper bar is detachably installed on the top cover. The scraper bar extends into the inside of the filter barrel and contacts the inner wall of the filter barrel to scrape off the residue adsorbed on the filter barrel.

[0033] The technical effects achieved by the above-mentioned improvement scheme are as follows: by sealing the top of the outer box with the top cover, the risk of accidents during operation can be reduced, and the scraper bar installed on the top cover can continuously scrape and clean the inner wall of the filter barrel, ensuring the filtration effect.

[0034] A method for pulping using a mica sheet pulping device includes the following steps;

[0035] 1) Feeding and reaction: The mica material to be reacted and concentrated sulfuric acid and other raw materials are fed into the reactor through the corresponding inlet. When the concentrated sulfuric acid is introduced, it is slowly injected through the feed device. The concentrated sulfuric acid injected through the feed device can quickly enter the slurry and react.

[0036] 2) Coarse filtration: The slurry after reaction in the reactor is injected into the first filtration device, and the first filtration device is started to filter and remove the coarse particulate impurities remaining from the reaction.

[0037] 3) Secondary filtration: Introduce the slurry filtered in step 2) into the filter barrel, control the filter barrel to rotate and centrifuge, and maintain the rotation speed at 800-1000 r / min;

[0038] 4) Cleaning and slag removal: Remove the bottom plate from the filter bucket upwards, and disassemble the first and second support rods one by one to remove the deposited debris from the filter bucket and improve the slag removal effect.

[0039] As a further improvement to the above technical solution, in step 4), the filter bucket needs to be rotated while the bottom plate is being removed upwards;

[0040] Maintain a rotation speed of 30-50 r / min. When the filter barrel rotates, the residual impurities are more easily separated from the filter barrel. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0043] Figure 3 for Figure 1 A magnified schematic diagram of the local structure at point B;

[0044] Figure 4 This is a schematic diagram of the installation structure of the first and second pipes;

[0045] Figure 5 for Figure 4A diagram illustrating the explosion.

[0046] Figure 6 This is a schematic diagram of the second filtration device;

[0047] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point C;

[0048] Figure 8 This is a schematic diagram of the filter barrel and its internal structure;

[0049] Figure 9 for Figure 8 This is a schematic diagram of the exploded structure;

[0050] Figure 10 This is a schematic diagram of the base plate structure;

[0051] Figure 11 for Figure 10 Schematic diagram of the structure in the D direction;

[0052] Figure 12 This is a schematic diagram of the second support rod;

[0053] Figure 13 This is a schematic diagram of the first support rod;

[0054] Figure 14 for Figure 6 A magnified schematic diagram of the local structure at point E.

[0055] The text labels in the diagram represent: 10, Reactor; 101, Feeding component; 102, First pipe; 1021, First outlet; 103, Second pipe; 1031, Second outlet; 104, Rotary handle; 20, First filter device; 30, Second filter device; 301, Filter barrel; 302, Base plate; 3021, Fine hole; 303, First support rod; 3031, Support part; 304, Second support rod; 3041, Connecting platform; 3 042. First through-hole; 3043. Second through-hole; 305. Extension rod; 3051. Connecting groove; 3052. Perforation; 3053. Guide groove; 306. Lifting assembly; 307. Sliding seat; 308. First hook; 3081. Connecting seat; 3082. Telescopic column; 3083. Hook pin; 309. Water pipe; 310. Outer casing; 311. Top cover; 3111. Feed pipe; 312. Scraper rod; 313. Second hook. Detailed Implementation

[0056] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0057] As per the instruction manual Figure 1-14 As shown, as a specific embodiment of the present invention, the specific structure of the present invention is as follows: a mica sheet pulping device, including a reaction vessel 10, a first filtration device 20, and a second filtration device 30 arranged in sequence. The mica liquid after reaction in the reaction vessel 10 is filtered sequentially through the first filtration device 20 and the second filtration device 30. The first filtration device 20 is used for coarse filtration, and the second filtration device 30 is used for further centrifugal filtration of the slurry.

[0058] The reactor 10 includes an internal feeder 101. The bottom end of the feeder 101 is close to the bottom wall of the reactor 10, and several discharge ports are provided on its surface for introducing the reagent into the reactor 10. The discharge ports include a first discharge port 1021 provided on the side of the first pipe 102 and a second discharge port 1031 provided on the side of the second pipe 103. (See attached instruction manual for details.) Figure 2 , 4 As shown in Figure 5, in this embodiment, the first outlet 1021 and the second outlet 1031 are both provided with several rectangular holes arranged at equal intervals. They can also be vertically arranged elongated slots, which can be changed as needed. The first outlet 1021 and the second outlet 1031 are only provided on one side of the first pipe 102 or the second pipe 103. The positions of the first outlet 1021 and the second outlet 1031 correspond to each other and can be selectively connected to each other. In specific operation, the first pipe 102 is rotated to make the second outlet 1031 and the first outlet 1021 connected and penetrated. At this time, the concentrated sulfuric acid in the second pipe 103 overflows into the reactor 10 through the first outlet 1021 and the second outlet 1031 to participate in the reaction. This can maximize the mixing and reaction of concentrated sulfuric acid with mica solution during injection.

[0059] The second filtration device 30 includes a filter barrel 301, which is disposed inside an outer casing 310 and has a drive source connected to its bottom end to drive its rotation. Specifically, the drive source is a motor fixedly mounted on the outer casing 310, which is connected to the filter barrel 301 via a transmission connection, and the motor speed can be controlled. A bottom plate 302 is disposed inside the filter barrel 301. The bottom plate 302 can be pulled upwards, and a magnet that can attract the filter barrel 301 is disposed on the bottom surface of the bottom plate 302. A sealing ring is disposed between the bottom plate 302 and the bottom wall of the filter barrel 301 to prevent the filtered slurry from entering the cavity between the bottom plate 302 and the filter barrel 301. Several first support rods 303 and second support rods 304 are arranged in an alternating pattern above the bottom plate 302. (See attached diagram.) Figure 6 , 8As shown in Figures 9, 12, and 13, the first support rod 303 and the second support rod 304 can partially agitate the slurry inside the filter bucket 301 during rotation, maintaining the fluidity of the slurry and facilitating centrifugal filtration. On the other hand, the first support rod 303 and the second support rod 304 are installed in a mesh structure, which hinders the removal of impurities and provides a suitable location for them to adhere, facilitating the coagulation of impurities. This improves the overall stability of the residue after filtration and removal, preventing it from scattering during the removal process. When the bottom plate 302 is removed upwards, the residue coagulated inside the filter bucket 301 can be removed together. After the residue is completely removed, the first support rod 303 and the second support rod 304 can be disassembled to remove the coagulated residue from the bottom plate 302.

[0060] Please refer to the instruction manual attached. Figure 1 , 2 As shown in Figures 3, 4, and 5, the above embodiments are further optimized as follows: the feed component 101 includes a first pipe 102 and a second pipe 103. The first pipe 102 is sleeved inside the second pipe 103, and the first pipe 102 is fixedly connected to the reactor 10.

[0061] The second pipe 103 and the reactor 10 are rotatably connected. The reactor 10 is equipped with a handle 104 that drives the second pipe 103 to rotate. (See reference...) Figure 3 As shown, a bevel gear is provided on the second pipe 103, and a bevel gear meshing with it is also provided at the end of the handle 104. Therefore, when the handle 104 is rotated, the second pipe 103 can be driven to rotate synchronously. After the concentrated sulfuric acid is injected into the reactor 10, the second outlet 1031 and the first outlet 1021 can be connected by controlling the rotation of the second pipe 103, so that the concentrated sulfuric acid in the first pipe 102 can diffuse and react, reducing the residue of sulfuric acid in the first pipe 102.

[0062] Please refer to the instruction manual attached. Figure 1 , 6 As shown in Figures 7, 12, and 13, the following optimizations are made based on the above embodiments: The first support rod 303 is provided with a plurality of support portions 3031, and the second support rod 304 has a plurality of connecting platforms 3041, wherein the support portion 3031 is specifically a protrusion (see Figure 1). Figure 13 The connecting platform 3041 is also block-shaped, and its width is wider than that of the second support rod 304, and it is elliptical in shape (see reference). Figure 12Specifically, the connecting platform 3041 is provided with a first through-hole 3042 for the first support rod 303 to pass through, and a second through-hole 3043 for the support part 3031 to pass through. The first through-hole 3042 is a circular hole corresponding to the width of the first support rod 303, and the second through-hole 3043 corresponds to the shape of the support part 3031. When installing the first support rod 303 and the second support rod 304, the second support rod 304 is first fixedly installed on the base plate 302, and then the first support rod 303 passes through the first through-hole 3042. The support part 3031 can pass through the second through-hole 3043. The first support rod 303 is rotated so that the support part 3031 is pressed between the two connecting platforms 3041, as shown in Figure 7. In this way, the first support rod 303 and the second support rod 304 are fixed to each other.

[0063] Please refer to the instruction manual attached. Figure 6 , 7 8, 9, 10, 11, and 14 are further optimized based on the above embodiments: An upwardly extending extension rod 305 is provided on the upper side of the base plate 302. The extension rod 305 is divided into upper and lower parts; the upper part is frustum-shaped, and the lower part is cylindrical. The top of the extension rod 305 has a downwardly recessed mating groove 3051. A through hole 3052 is provided on the extension rod 305, penetrating the mating groove 3051. A guide groove 3053 is provided between the through hole 3052 and the top surface of the extension rod 305. Please refer to the attached document. Figure 10 As shown;

[0064] The second filter device 30 also includes a lifting assembly 306. In this application, a hoisting lifting method is used for lifting, including a vertically arranged column and a horizontal arm that moves up and down on the column (see reference). Figure 6 A sliding seat 307 is movably disposed on the bottom surface of the lifting assembly 306. Specifically, the sliding seat 307 is disposed below the horizontal arm, and a linear drive mechanism that can drive the sliding seat 307 to change position back and forth is disposed between the sliding seat 307 and the horizontal arm. In this embodiment, a gear and rack structure is used. A first hook 308 that can extend into the guide groove 3053 and the through hole 3052 is fixedly disposed on the bottom surface of the sliding seat 307 to facilitate lifting the base plate 302 upward. See attached figure. Figure 14As shown, in this embodiment, the first hook 308 includes a connecting seat 3081 fixedly installed on the bottom surface of the sliding seat 307. A telescopic column 3082 is provided below the connecting seat 3081. The telescopic column 3082 and the connecting seat 3081 can rotate or slide relative to each other. A drive cylinder is provided on the connecting seat 3081 to drive its up and down interaction. The output shaft of the cylinder and the telescopic column 3082 are rotatably connected. An outwardly protruding hook pin 3 is provided on the surface of the telescopic column 3082. 083, the hook pin 3083 is specifically a cylindrical pin; during the process of pulling the base plate 302 upward, the telescopic column 3082 and the docking groove 3051 are aligned with each other, and under the drive of the cylinder, the telescopic column 3082 can drive the hook pin 3083 through the guide groove 3053 into the perforation 3052. At this time, when the first hook 308 is pulled upward, the hook pin 3083 and the perforation 3052 hook each other, and then the base plate 302 can be pulled out upward to simultaneously remove the deposited residue.

[0065] Please refer to the instruction manual attached. Figure 6 , 7 As shown, based on the above embodiment, further optimization is made: the bottom plate 302 is provided with fine holes 3021 inside, and the outlet end of the fine holes 3021 is located on the upper side of the bottom plate 302. Specifically, during use, water can be passed upward through the fine holes 3021 so that the residue on the bottom plate 302 and the bottom plate 302 can be separated from each other.

[0066] A downward-facing water pipe 309 is fixedly installed on the sliding seat 307. The water pipe 309 is retractable and can spray water onto the surface of the filter barrel 301. Specifically, when it is necessary to pull the bottom plate 302 upward from the filter barrel 301, water is sprayed onto the surface of the filter barrel 301 through the water pipe 309. The water sprayed onto the filter barrel 301 will enter the interior of the filter barrel 301 through the sieve holes, thereby causing the residue inside the filter barrel 301 to separate from the inner wall of the filter barrel 301, so as to facilitate the removal of the deposited residue as a whole. During the removal process, by controlling the motor connected to the filter barrel 301 to start, the filter barrel 301 can be rotated, which separates the residue from the inner wall of the filter barrel 301 and reduces the dispersion of the deposited residue.

[0067] Please refer to the instruction manual attached. Figure 1 , 6 As shown, based on the above embodiment, a further optimization is made: a top cover 311 is detachably provided on the top surface of the outer casing 310, and the top cover 311 has a feed pipe 3111 that is connected to the first filter device 20.

[0068] A scraper rod 312 is detachably installed on the top cover 311. The scraper rod 312 extends into the filter barrel 301 and contacts the inner wall of the filter barrel 301 to scrape off the residue adsorbed on the filter barrel 301. By scraping the inner wall of the filter barrel 301 with the scraper rod 312, the inner wall of the filter barrel 301 can be kept clean, reducing the sedimentation of residue and facilitating the rapid separation of slurry. A second hook 313 is also provided on the sliding seat 307. The second hook 313 and the first hook 308 are respectively located at different positions on the sliding seat 307. A handle that can be hooked by the second hook 313 is provided on the scraper rod 312. When removing residue, the top cover 311 can be removed from the outer box 310, and the second hook 313 can lift the top cover 311 upward to facilitate the removal of residue from the filter barrel 301.

[0069] The method for pulping using a mica sheet pulping apparatus in this application includes the following steps;

[0070] 1) Feeding and reaction: The mica material to be reacted and concentrated sulfuric acid and other raw materials are fed into the reactor 10 through the corresponding inlets. When concentrated sulfuric acid is introduced, it is slowly injected through the feeder 101. The injected sulfuric acid enters the reactor 10 through the bottom outlets of the first pipe 102 and the second pipe 103 to react. When the amount of injected sulfuric acid is reached and the injection of sulfuric acid is stopped, the handle 104 is rotated. The handle 104 will drive the second pipe 103 to rotate synchronously, so that the second outlet 1031 and the first outlet 1021 are connected to each other. This allows the sulfuric acid remaining in the first pipe 102 and the second pipe 103 to quickly mix with the mica in the reactor 10, so that the concentrated sulfuric acid injected through the feeder 101 can quickly enter the slurry and react, reducing the residual time of concentrated sulfuric acid in the reactor.

[0071] 2) Coarse filtration: The slurry after reaction in the reactor 10 is injected into the first filter device 20. The first filter device 20 is started to filter and remove the coarse particulate impurities remaining from the reaction.

[0072] 3) Secondary filtration: The slurry filtered in step 2) is introduced into the filter barrel 301. The filter barrel 301 is controlled to rotate for centrifugal filtration, maintaining a speed of 800-1000 r / min. During centrifugal filtration, the motor connected to the filter barrel 301 is started, and the motor drives the filter barrel 301 to rotate inside the outer casing 310. Under the cleaning of the scraper bar 312 set on the top cover 311, the inner wall of the filter barrel 301 can be continuously cleaned to ensure the filtration effect.

[0073] 4) Cleaning and slag removal: By controlling the lowering of the lifting assembly 306 and the movement of the sliding seat 307, the second hook 313 moves to above the top cover 311 and hooks onto the handrail on the top cover 311. After the top cover 311 is removed, it is lifted upwards and taken out. Then, by controlling the movement of the sliding seat 307, the first hook 308 moves to above the extension rod 305. The lifting assembly 306 is lowered, causing the first hook 308 and the extension rod 305 to hook together. The bottom plate 302 is then lifted upwards and removed from the filter bucket 301. During removal, water is injected into the water pipe 309 and sprayed onto the side surface of the filter bucket 301 to facilitate the detachment of the filter bucket 301 from the deposited residue support and to maintain the deposited residue. To maintain the integrity of the residue, the first support rod 303 and the second support rod 304 are disassembled sequentially on the removed bottom plate 302, allowing the deposited impurities to be removed from the filter bucket 301, thus improving the slag removal effect. When the bottom plate 302 and the removed residue separate from each other, water can be injected into the fine hole 3021 to facilitate the separation of the bottom plate 302 and the residue. In addition, when removing the bottom plate 302 upwards, the filter bucket 301 needs to be rotated; the rotation speed should be maintained at 30-50 r / min. When the filter bucket 301 rotates, it can cause mutual movement between the filter bucket 301 and the residue, making it easier for the residual impurities to separate from the filter bucket 301, and protecting the integrity of the residue to prevent collapse, so that the residue can be removed in one go.

[0074] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0075] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A mica flake pulping apparatus, characterized by: The reaction kettle (10), the first filtering device (20) and the second filtering device (30) are sequentially arranged, and the mica liquid after the reaction in the reaction kettle (10) is filtered by the first filtering device (20) and the second filtering device (30) in sequence; The reaction kettle (10) comprises a feeding member (101) arranged in the interior, the bottom end of the feeding member (101) is close to the bottom wall of the reaction kettle (10), and a plurality of discharge portions are arranged on the surface of the feeding member (101) and used for introducing the medicament into the interior of the reaction kettle (10); The second filtering device (30) comprises a filter barrel (301), a bottom plate (302) is arranged in the filter barrel (301), a plurality of first supporting rods (303) and second supporting rods (304) are arranged above the bottom plate (302) and staggered with each other, and the bottom plate (302) can take out the residues condensed in the filter barrel (301); An extension rod (305) extending upwards is arranged on the upper side of the bottom plate (302), the top end of the extension rod (305) is concave downwards and is provided with a connecting groove (3051), a through hole (3052) penetrating through the connecting groove (3051) is arranged on the extension rod (305), and a guide groove (3053) is arranged between the through hole (3052) and the top surface of the extension rod (305); The second filtering device (30) further comprises a lifting assembly (306), a sliding seat (307) is movably arranged on the bottom surface of the lifting assembly (306), a first lifting hook (308) is fixedly arranged on the bottom surface of the sliding seat (307) and can be inserted into the guide groove (3053) and the through hole (3052), so that the bottom plate (302) can be lifted upwards; A water pipe (309) arranged downwards is fixedly arranged on the sliding seat (307), the water pipe (309) can be telescopic, and water can be sprayed on the surface of the filter barrel (301); The filter barrel (301) is arranged in an outer box (310) and is connected with a driving source at the bottom end to drive the rotation of the filter barrel (301).

2. A mica flake pulping apparatus as claimed in claim 1, wherein: The feeding member (101) comprises a first pipeline (102) and a second pipeline (103), the first pipeline (102) is sleeved in the second pipeline (103), and the first pipeline (102) and the reaction kettle (10) are fixedly connected with each other; The second pipeline (103) and the reaction kettle (10) are rotatably arranged, and a rotating handle (104) is arranged on the reaction kettle (10) to drive the rotation of the second pipeline (103).

3. A mica flake pulping apparatus as claimed in claim 2, wherein: The discharge portion comprises a first discharge port (1021) arranged on the side surface of the first pipeline (102) and a second discharge port (1031) arranged on the side surface of the second pipeline (103); The first discharge port (1021) and the second discharge port (1031) are corresponding to each other in position and are selectively connected with each other; when connected, the concentrated sulfuric acid overflows into the reaction kettle (10) through the first discharge port (1021) and the second discharge port (1031) to participate in the reaction.

4. A mica flake pulping apparatus as claimed in claim 1, wherein: A plurality of supporting portions (3031) are arranged on the first supporting rod (303), and a plurality of connecting tables (3041) are arranged on the second supporting rod (304). The first through portion (3042) is arranged through the connecting table (3041) to facilitate the first supporting rod (303) to pass through, and the second through portion (3043) can facilitate the supporting portion (3031) to pass through, and the second through portion (3043) and the outer shape of the supporting portion (3031) correspond to each other.

5. A mica flake pulping apparatus as claimed in claim 1, wherein: The bottom plate (302) is internally provided with a fine hole (3021), and the outlet end of the fine hole (3021) is located on the upper side of the bottom plate (302).

6. A mica flake pulping apparatus as claimed in claim 1, wherein: The top surface of the outer box (310) is detachably provided with a top cover (311), and the top cover (311) has a feeding pipe (3111) connected with the first filtering device (20); The top cover (311) is detachably provided with a scraping rod (312), which extends into the filter barrel (301) and is in contact with the inner wall of the filter barrel (301) to scrape off the residues adsorbed on the filter barrel (301).

7. A method of pulping using the mica sheet pulping apparatus according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: 1) Feeding and reacting: the mica material to be reacted and raw materials such as concentrated sulfuric acid are fed into the reaction kettle (10) through the corresponding inlet, and when the concentrated sulfuric acid is fed, it is slowly injected through the feeding part (101), and the concentrated sulfuric acid injected through the feeding part (101) can quickly enter the slurry and react; 2) Coarse filtration: the slurry after reaction in the reaction kettle (10) is injected into the first filtering device (20), and the first filtering device (20) is started to filter and remove the coarse particle impurities remaining after reaction; 3) Secondary filtration: the slurry filtered in step 2) is introduced into the filter barrel (301), and the filter barrel (301) is controlled to rotate and centrifugal filter, and the rotating speed is maintained at 800-1000r / min; 4) Cleaning and slag removal: the bottom plate (302) is taken out from the filter barrel (301) upward, and the first supporting rod (303) and the second supporting rod (304) are disassembled in sequence, so that the deposited impurities can be taken out from the filter barrel (301), and the slag removal effect is improved.

8. The pulping method according to claim 7, wherein: In step 4), the filter barrel (301) is controlled to rotate when the bottom plate (302) is taken out upward; The rotating speed is maintained at 30-50r / min, and the residual impurities are more easily separated from the filter barrel (301) when the filter barrel (301) rotates.

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