A slurry stirring device for ceramic production

Abstract

This invention discloses a slurry mixing device for ceramic production, belonging to the field of ceramic production technology. It includes a reactor module, a feeding module, and a dispersing module. The feeding module is movably mounted on the reactor module and connected to the dispersing module, driving the dispersing module to rotate continuously within the reactor. The feeding module contains two sets of alternating valve plates for quantitatively feeding ceramic powder into the mixing reactor. The bottom of the dispersing module's slurry shell is provided with several bottom-mounted dispersing holes for slowly releasing ceramic powder into the mixing reactor. This invention uses the feeding module to quantitatively feed the ceramic powder to be mixed in batches into the dispersing module for dispersion, reducing powder agglomeration in the solvent, refining powder particles, improving particle size distribution, and making the mixed product more uniform.

Description

Technical Field

[0001] This invention belongs to the field of ceramic production technology, specifically relating to a slurry mixing device for ceramic production. Background Technology

[0002] The mixing of ceramic slurry is a very important process, as it directly affects the stability, fluidity, ease of subsequent molding, and performance of the final product.

[0003] Chinese Patent Publication No. CN114290517A discloses a slurry mixing device for ceramic art processing, including a slurry tank. Support frames are fixedly installed on both sides of the bottom of the slurry tank, and a feeding mechanism is fixedly installed on the top of the slurry tank. A drive motor is fixedly installed on the top of the feeding mechanism, and a mixing mechanism is fixedly installed on the output shaft of the drive motor. This invention, through its designed mixing mechanism, utilizes conical stirring blades to increase the slurry dispersion pressure through the adjacent conical surfaces. Furthermore, when the stirring blades contact the slurry, the dispersion plates arranged at relative angles can fully extrude and disperse the slurry through limiting and squeezing, further improving the dispersion effect of the slurry mixture. The expanding air bladder at the end can expand the end of the stirring blades through air injection, synchronously controlling the relative tilt angle of the stirring blades to achieve pressurized dispersion and mixing effects for slurries of different viscosities.

[0004] In actual use, the above-mentioned stirring device causes the ceramic powder particles to clump together and form dry clumps during rapid addition, which are difficult to be wetted and opened by solvents and dispersants. Furthermore, the ceramic powder raw material is prone to absorbing water and clumping, which further hinders the dissolution efficiency of the powder in the solvent, resulting in insufficient fineness of the slurry after stirring. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a slurry mixing device for ceramic production, so as to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A slurry mixing device for ceramic production includes a vessel body module, a feeding module, and a dispersing module. The vessel body module includes a vessel body assembly, and the vessel body assembly includes a mixing vessel and a vessel lid, which are fixedly connected.

[0008] The feeding module is movably mounted on the kettle lid and connected to the dispersing module, and is used to drive the dispersing module to rotate continuously in the inner cavity of the mixing kettle;

[0009] The feeding module is equipped with two sets of alternating valve plates for quantitatively feeding ceramic powder into the mixing vessel cavity;

[0010] The dispersion module includes a dispersion component, which includes a material shell and bottom dispersion holes. The material shell is disposed in the inner cavity of the mixing vessel. One end of the material shell is connected to the feeding module. Several bottom dispersion holes are arranged at the bottom of the material shell. The bottom dispersion holes are used to release ceramic powder into the mixing vessel at a low speed.

[0011] As a further embodiment of the present invention, the feeding module includes a feeding assembly, which includes a feeding cylinder, a driven gear ring, a feed inlet, a storage hopper, a material pipe, a main shaft, and a scraper. The feeding cylinder is rotatably mounted on the vessel lid, and the driven gear ring is arranged at the outer diameter end of the feeding cylinder. The feed inlet is provided at the top of the feeding cylinder. The storage hopper is fixedly installed in the feed inlet. The material pipe is arranged longitudinally in the feeding cylinder and communicates with the storage hopper. The main shaft is rotatably assembled in the feeding cylinder and the storage hopper, and the end of the main shaft is fixedly arranged on the vessel lid. The scraper is arranged in the storage hopper and fixedly connected to the main shaft.

[0012] As a further embodiment of the present invention, the feeding assembly further includes a valve plate bin, a top valve plate slot, a bottom valve plate slot, a top valve plate, a bottom valve plate, a top arc plate, and a bottom arc plate. The valve plate bin is disposed on the material pipe, and the valve plate bin is provided with a top valve plate slot and a bottom valve plate slot respectively. The top valve plate and the bottom valve plate are elastically slidably assembled in the top valve plate slot and the bottom valve plate slot respectively. The top arc plate and the bottom arc plate are both fixedly assembled on the main shaft, and the top arc plate and the bottom arc plate slide against the top valve plate and the bottom valve plate respectively.

[0013] As a further embodiment of the present invention, the feeding assembly further includes a first bevel gear, a sleeve, a countershaft, and a second bevel gear. The first bevel gear and the main shaft are coaxially and fixedly connected. The sleeve is arranged on the bottom side of the feeding cylinder. One end of the countershaft is rotatably assembled in the sleeve, and the other end of the countershaft is coaxially and fixedly connected to the second bevel gear. The second bevel gear and the first bevel gear are connected in a transmission manner.

[0014] As a further embodiment of the present invention, the dispersing assembly further includes a central bevel gear shaft, a pressing screw, a front traction rod, and a conical pressing cylinder. The material shell and the material pipe are connected. A central bevel gear shaft is fixedly arranged at one end of the material shell. The upper side of one end of the central bevel gear shaft meshes with a first bevel gear, and the lower side of the same end of the central bevel gear shaft meshes with a second bevel gear. The pressing screw is slidably inserted into the central bevel gear shaft. The front traction rod is fixedly connected to the pressing screw. The conical pressing cylinder is fixedly arranged in the material shell, and the front traction rod is slidably inserted into one end of the conical pressing cylinder. A first cavity is provided on one side of the pressing screw. A second cavity is provided between the conical pressing cylinder and the inner wall of the material shell. The second cavity is connected to the bottom dispersing hole. The first cavity and the second cavity are connected to each other.

[0015] As a further embodiment of the present invention, the dispersing assembly further includes a central drive shaft, a tail driven shaft, a traction disc, a slide cylinder, a pulling groove, a spiral groove, and a sliding pin. The central drive shaft is arranged inside the conical pressing cylinder, with one end of the central drive shaft being slidably inserted into the front traction rod and the other end being slidably inserted into the tail driven shaft. The tail driven shaft penetrates the shell of the conical pressing cylinder and is rotatably mounted on one end of the bulk material shell. The traction disc is sleeved on the tail driven shaft and fixedly connected to the front traction rod. The slide cylinder is elastically slidably assembled in the bulk material shell, and a pulling groove is provided at one end of the slide cylinder. The pulling groove is slidably sleeved on the traction disc, and a spiral groove is also provided on the inner wall side of the slide cylinder. The sliding pin is fixedly arranged on the tail driven shaft and slidably assembled in the spiral groove.

[0016] As a further embodiment of the present invention, the dispersing component further includes a discharge trough, which is fixedly arranged at the bottom of the bulk material shell. The inner cavity of the discharge trough is connected to the bottom dispersing hole, and the bottom of the discharge trough is at an angle to the horizontal plane, so that the powder is thrown into the mixing vessel along the tangential direction of the bulk material shell cylinder wall.

[0017] As a further embodiment of the present invention, the slurry mixing device for ceramic production further includes a reflux assembly. The reflux assembly includes a reflux shell, a crankshaft, a pull rod, a reflux cylinder, a piston shaft, a piston, an orifice plate, a reflux pipe, and a drain pipe. The reflux shell is fixedly assembled at the bottom of the sleeve. The crankshaft is rotatably installed in the reflux shell, with one end of the crankshaft coaxially connected to the countershaft. The pull rod is rotatably sleeved at the other end of the crankshaft. The reflux cylinder is fixedly arranged at one end of the reflux shell. One end of the piston shaft is slidably inserted into the reflux cylinder, and the other end of the piston shaft is rotatably connected to the pull rod. The piston is slidably assembled in the inner cavity of the reflux cylinder and fixedly connected to the piston shaft. The orifice plate is fixedly arranged in the inner cavity of the reflux cylinder. The reflux cylinder is also connected to the reflux pipe and the drain pipe.

[0018] As a further embodiment of the present invention, the reflux assembly further includes a one-way check valve, a scraper hopper, a scraper port, a collector, and a jet nozzle. Both the reflux pipe and the guide pipe are equipped with one-way check valves. The guide pipe is equipped with a scraper hopper, and a scraper port is opened on one side of the scraper hopper. The end of the reflux pipe is connected to a collector. The collector is located at the bottom of the bulk material shell, and a plurality of jet nozzles are arrayed on the collector. The jet nozzles are inclinedly arranged on the collector.

[0019] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0020] The alternating movement of the top and bottom valve plates enables the batch and quantitative feeding of ceramic powder, avoiding rapid accumulation and the formation of dry clumps. In conjunction with the scraper in the storage hopper to push the powder, the material pipe is prevented from being blocked, thus reducing the probability of agglomeration from the source.

[0021] By using a screw press and a conical cylinder to press together, agglomerated powder can be broken up. The bottom-mounted discharge hole enables low-speed release, further refining the powder particles and improving the particle size distribution.

[0022] The angled design of the unloading trough not only prevents droplets from splashing and causing clumping of the bottom dispersing holes, but also allows the powder to be thrown along the tangential direction, increasing the contact area with the solvent and improving the dissolution efficiency.

[0023] The bottom sediment of the reactor is cleaned by the scraper hopper of the reflux component. After being crushed by the reflux cylinder, the reflux solvent is sprayed obliquely through the jet nozzle to form fluid disturbance, accelerate powder wetting, ensure slurry uniformity, and optimize the subsequent molding effect. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of a slurry mixing device for ceramic production provided in one embodiment of the present invention.

[0025] Figure 2 This is a partial cross-sectional view of a slurry mixing device for ceramic production provided in one embodiment of the present invention.

[0026] Figure 3 for Figure 2 Enlarged schematic diagram of reference numeral A in the attached figure.

[0027] Figure 4 This is a partial structural schematic diagram of a slurry mixing device for ceramic production provided in one embodiment of the present invention.

[0028] Figure 5 for Figure 4 Enlarged schematic diagram of reference numeral B in the attached figure.

[0029] Figure 6 for Figure 4 Enlarged schematic diagram of reference numeral D in the attached figure.

[0030] Figure 7 for Figure 4 Enlarged schematic diagram of the figure marked C in the attached diagram.

[0031] Figure 8 This is a schematic diagram of the jet nozzle in a slurry mixing device for ceramic production provided in one embodiment of the present invention.

[0032] Reference numerals: 1-Cafe body assembly, 101-Mixing kettle, 102-Cafe cover, 2-Feeding assembly, 201-Feeding cylinder, 202-Driven gear ring, 203-Inlet, 204-Storage hopper, 205-Material pipe, 206-Main shaft, 207-Valve plate bin, 208-Top valve plate groove, 209-Bottom valve plate groove, 210-Top valve plate, 211-Bottom valve plate, 212-Top arc plate, 213-Bottom arc plate, 214-Scraper, 215-First bevel gear, 216-Sleeve, 217-Secondary shaft, 218-Second bevel gear, 3-Dispersion assembly, 301-Bulk material shell, 302-Central bevel gear shaft, 303-Pressure material. Screw, 304-Bottom-mounted material dispersing hole, 305-Front-mounted traction rod, 306-Conical pressure cylinder, 307-Middle-mounted drive shaft, 308-Tail-mounted driven shaft, 309-Traction disc, 310-Slide cylinder, 311-Pull groove, 312-Spiral groove, 313-Sliding pin, 314-Discharge groove, 4-Recirculation assembly, 401-Recirculation shell, 402-Crankshaft, 403-Pull rod, 404-Recirculation cylinder, 405-Piston shaft, 406-Piston, 407-Orifice plate, 408-Recirculation pipe, 409-Drainage pipe, 410-One-way check valve, 411-Scraper hopper, 412-Scraper port, 413-Collector, 414-Jet nozzle. Detailed Implementation

[0033] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Please see Figures 1-8 According to one embodiment of the present invention, a slurry mixing device for ceramic production has a first direction x, a second direction y, and a third direction z. The slurry mixing device includes a vessel body module, a feeding module, and a dispersing module. The vessel body module includes a vessel body assembly 1, which includes a mixing vessel 101 and a vessel cover 102, the vessel cover 102 and the mixing vessel 101 being fixedly connected. The feeding module is movably mounted on the vessel cover 102 and connected to the dispersing module, used to drive the dispersing module. The block rotates continuously inside the mixing vessel 101; the feeding module is equipped with two sets of alternating valve plates for quantitatively feeding ceramic powder into the mixing vessel 101; the dispersion module includes a dispersion component 3, which includes a material dispersing shell 301 and bottom dispersing holes 304. The material dispersing shell 301 is disposed inside the mixing vessel 101, one end of which is connected to the feeding module, and several bottom dispersing holes 304 are arranged at the bottom of the material dispersing shell 301. The bottom dispersing holes 304 are used to release ceramic powder into the mixing vessel 101 at a low speed.

[0035] In practical application, the ceramic production slurry mixing device of this embodiment consists of a vessel module, a feeding module, and a dispersion module. The vessel module includes a mixing vessel 101 and a vessel cover 102. The vessel cover 102 is fixedly installed on the mixing vessel 101 and forms a stirring reaction vessel with the mixing vessel 101 in a sealed state. It is used to pre-fill the solvent and dispersant required for the water-based slurry reaction. The ceramic powder to be mixed is fed into the cavity of the dispersion module in batches and in a quantitative manner through the feeding module. The dispersion module uses the dispersion function of the raw materials to reduce the dense accumulation of powder in the solvent during the output process and avoid the formation of agglomerates in the solvent. In conjunction with the reflux component 4 arranged in the cavity of the mixing vessel 101, the powder is quickly soaked and opened in the solvent during the continuous stirring of the solvent and powder, breaking up the powder agglomerates and making the mixed product more uniform. At the same time, during the feeding process, the agglomerated powder can also be squeezed and broken, further refining the powder particles and improving the particle size distribution, so that the mixing effect is uniform and stable.

[0036] Please see Figure 5 In a preferred embodiment of the present invention, the feeding module includes a feeding assembly 2, which includes a feeding cylinder 201, a driven gear ring 202, a feed inlet 203, a storage hopper 204, a feed pipe 205, a main shaft 206, and a scraper 214. The feeding cylinder 201 is rotatably mounted on the reactor lid 102. The driven gear ring 202 is arranged at the outer diameter end of the feeding cylinder 201. The feed inlet 203 is provided at the top of the feeding cylinder 201. The storage hopper 204 is fixedly installed in the feed inlet 203. The feed pipe 205 is arranged longitudinally in the feeding cylinder 201 and communicates with the storage hopper 204. The main shaft 206 is rotatably assembled in the feeding cylinder 201 and the storage hopper 204, and the end of the main shaft 206 is fixedly arranged on the reactor lid 102. The scraper 214 is arranged in the storage hopper 204 and fixedly connected to the main shaft 206.

[0037] In practical application, the feeding cylinder 201 is rotatably mounted on the kettle cover 102, and a driven toothed ring 202 is provided at the outer diameter end of the feeding cylinder 201. An external drive source can be installed on the kettle cover 102 to drive the feeding cylinder 201 to rotate via a synchronous belt. The specific structure of the external drive source is not limited here. Since the main shaft 206 is fixedly mounted on the kettle cover 102, when the feeding cylinder 201 rotates, the feeding cylinder 201 and the main shaft 206 rotate relative to each other. The scraper 214 fixedly arranged on the main shaft 206 can push the powder accumulated in the storage hopper 204 to the material pipe 205 during rotation, thereby ensuring that the material pipe 205 is always filled with powder to be mixed during the rotation cycle.

[0038] Please see Figure 3 and Figure 5In a preferred embodiment of the present invention, the feeding assembly 2 further includes a valve plate bin 207, a top valve plate groove 208, a bottom valve plate groove 209, a top valve plate 210, a bottom valve plate 211, a top arc plate 212, and a bottom arc plate 213. The valve plate bin 207 is disposed on the material pipe 205. The valve plate bin 207 is provided with a top valve plate groove 208 and a bottom valve plate groove 209. The top valve plate groove 208 and the bottom valve plate 211 are elastically slidably assembled in the top valve plate groove 208 and the bottom valve plate groove 209, respectively. The top arc plate 212 and the bottom arc plate 213 are both fixedly assembled on the main shaft 206, and the top arc plate 212 and the bottom arc plate 213 slide against the top valve plate 210 and the bottom valve plate 211, respectively.

[0039] In practical application, the valve plate hopper 207 is located in the middle of the material pipe 205, and the valve plate hopper 207 is provided with a top valve plate groove 208 and a bottom valve plate groove 209 spaced apart. The top valve plate 210 and the bottom valve plate 211 are elastically slidably assembled in the top valve plate groove 208 and the bottom valve plate groove 209, respectively. The volume of the cavity between the top valve plate 210 and the bottom valve plate 211 is set to the volume of powder to be fed in a single operation. The two sets of top valve plates 210 and bottom valve plates 211 have relative open and closed states. The main shaft 206 is also coaxially fixed with a top arc plate 212 and a bottom arc plate 213. When the top arc plate 212 rotates and presses against the top valve plate 210, the top valve plate 210 moves against the elastic force towards the cavity wall of the material tube 205, so that the top valve plate 210 switches from the open state to the closed state. Similarly, when the bottom arc plate 213 rotates and presses against the bottom valve plate 211, it can switch the bottom valve plate 211 from the open state to the closed state. The top valve plate 210 and the bottom valve plate 211 are in an alternating open and closed state.

[0040] Furthermore, if the top valve plate 210 is in the open state, the bottom valve plate 211 is in the closed state. At this time, the powder in the feed pipe 205 accumulates on the upper layer of the bottom valve plate 211. If the top valve plate 210 is switched to the closed state and the bottom valve plate 211 is switched to the open state, the powder inside the feed pipe 205 accumulates on the upper layer of the top valve plate 210. The powder in the cavity between the top valve plate 210 and the bottom valve plate 211 falls along the feed pipe 205 into the bulk material shell 301 for dispersion, so as to achieve periodic quantitative release of powder.

[0041] Please see Figure 2In a preferred embodiment of this invention, the feeding assembly 2 further includes a first bevel gear 215, a sleeve 216, a secondary shaft 217, and a second bevel gear 218. The first bevel gear 215 and the main shaft 206 are coaxially fixedly connected. The sleeve 216 is arranged on the bottom side of the feeding cylinder 201. One end of the secondary shaft 217 is rotatably assembled in the sleeve 216, and the other end of the secondary shaft 217 is coaxially fixedly connected to the second bevel gear 218. The second bevel gear 218 and the first bevel gear 215 are connected in a transmission manner.

[0042] In practical application, the first bevel gear 215 and the main shaft 206 are coaxially fixedly connected. When the feeding cylinder 201 rotates, the bulk material shell 301 and the feeding cylinder 201 rotate synchronously. The central bevel gear shaft 302 at one end of the bulk material shell 301 meshes and rotates during the movement, thereby meshing and driving the second bevel gear 218 to rotate. The auxiliary shaft 217 is rotatably arranged in the inner cavity of the sleeve 216 so that the second bevel gear 218 synchronously drives the auxiliary shaft 217 to rotate when it rotates.

[0043] Please see Figure 2 and Figure 7 In a preferred embodiment of the present invention, the dispersing assembly 3 further includes a central bevel gear shaft 302, a pressing screw 303, a front traction rod 305, and a conical pressing cylinder 306. The material dispersing shell 301 is connected to the material pipe 205. A central bevel gear shaft 302 is fixedly arranged at one end of the material dispersing shell 301. The upper side of one end of the central bevel gear shaft 302 meshes with a first bevel gear 215, and the lower side of the same end of the central bevel gear shaft 302 meshes with a second bevel gear 218. The pressing screw 303 is limited and slidably inserted into the central bevel gear shaft 306. On the gear shaft 302, the front traction rod 305 and the pressing screw 303 are fixedly connected. The conical pressing cylinder 306 is fixedly arranged in the bulk material shell 301, and the front traction rod 305 is limited and slidably inserted into one end of the conical pressing cylinder 306. A first cavity a1 is provided on one side of the pressing screw 303. A second cavity a2 is provided between the conical pressing cylinder 306 and the inner wall of the bulk material shell 301. The second cavity a2 is connected to the bottom bulk material hole 304. The first cavity a1 and the second cavity a2 are connected.

[0044] In practical application, the central bevel gear shaft 302 is fixedly mounted on the bulk material shell 301, and the central bevel gear shaft 302 meshes with the first bevel gear 215 and the second bevel gear 218. The pressure screw 303 is slidably sleeved on the central bevel gear shaft 302, so that when the central bevel gear shaft 302 rotates, it synchronously drives the pressure screw 303 to rotate. During rotation, the pressure screw 303 can continuously push the powder input into the inner cavity of the bulk material shell 301 towards the conical pressure cylinder 306, so that when the powder moves to the side of the bottom bulk material hole 304, the powder passes through the bottom bulk material hole 304 and is output into the inner cavity of the mixing kettle 101. The conical pressure cylinder 306 has a conical structure and is set towards the side of the pressure screw 303. The side of the pressure screw 303 is provided with opposite... The first cavity a1 and the inner wall of the conical pressing cylinder 306 and the bulk material shell 301 are respectively provided with a second cavity a2. Since the pressing screw 303 is slidably assembled at one end of the central conical tooth shaft 302, when the pressing screw 303 moves in the positive direction of the first direction x under the traction state, it can quickly push the remaining powder in the first cavity a1 into the second cavity a2. At this time, some agglomerated powder with a particle size larger than the aperture of the bottom bulk material hole 304 moves continuously into the depth of the second cavity a2 under the pushing action. Since the distance between the conical surface of the conical pressing cylinder 306 and the inner wall of the bulk material shell 301 is continuously reduced, the agglomerated powder is crushed under the extrusion. At the same time, with the rotation of the conical pressing cylinder 306, the agglomerated powder can be further refined and then output through the bottom bulk material hole 304.

[0045] Please see Figure 7 In a preferred embodiment of the present invention, the dispersing assembly 3 further includes a central drive shaft 307, a tail driven shaft 308, a traction disc 309, a slide cylinder 310, a traction groove 311, a spiral groove 312, and a sliding pin 313. The central drive shaft 307 is disposed inside the conical pressing cylinder 306, with one end of the central drive shaft 307 slidably inserted into the front traction rod 305, and the other end of the central drive shaft 307 slidably inserted into the tail driven shaft 308. The tail driven shaft 308 penetrates the conical pressing cylinder 306. The housing of 06 is rotatably mounted on one end of the bulk material housing 301. The traction disc 309 is sleeved on the tail driven shaft 308 and fixedly connected to the front traction rod 305. The slide cylinder 310 is elastically slidably assembled in the bulk material housing 301, and one end of the slide cylinder 310 is provided with a traction groove 311. The traction groove 311 is slidably sleeved on the traction disc 309. The inner wall side of the slide cylinder 310 is also provided with a spiral groove 312. The sliding pin 313 is fixedly arranged on the tail driven shaft 308 and slidably assembled in the spiral groove 312.

[0046] In practical application, the central drive shaft 307 is arranged in the conical pressure cylinder 306, and both ends of the central drive shaft 307 are respectively limited and slidably inserted into the front traction rod 305 and the tail driven shaft 308. When the pressure screw 303 rotates with the central bevel gear shaft 302, it can synchronously drive the front traction rod 305, the conical pressure cylinder 306, the central drive shaft 307, and the tail driven shaft 308 to rotate. A sliding pin 313 is also fixedly provided on the tail driven shaft 308. When the sliding pin 313 rotates in the circumferential direction... When the slide pin 313 rotates and slides into the spiral groove 312, it can rotate and squeeze the slide cylinder 310 to move in the positive direction of the first direction x during the sliding process, so that the slide cylinder 310 moves synchronously in the positive direction of the first direction x. During the movement, the traction groove 311 on one side of the slide cylinder 310 pulls the traction disc 309 to move, so that the front traction rod 305, which is fixedly connected to the traction disc 309, synchronously pulls the pressing screw 303 to move in the positive direction of the first direction x, thereby pushing the powder in the first cavity a1 into the second cavity a2.

[0047] Furthermore, the dispersing component 3 also includes a discharge trough 314, which is fixedly arranged at the bottom of the bulk material shell 301. The inner cavity of the discharge trough 314 is connected to the bottom dispersing hole 304, and the bottom of the discharge trough 314 is at an angle to the horizontal plane, so that the powder is thrown into the mixing vessel 101 along the tangential direction of the bulk material shell 301 cylinder wall. Since the discharge trough 314 is arranged at the bottom of the bulk material shell 301, a blocking surface is formed between the bottom dispersing hole 304 and the liquid surface of the vessel, preventing splashing droplets from falling at the opening of the bottom dispersing hole 304 and avoiding the powder from getting wet and clumping at the opening. At the same time, the powder is thrown obliquely to the liquid surface. Since there is a horizontal movement process in the oblique throwing, the same mass of powder covers a larger liquid surface area per unit time, which can further increase the dissolution efficiency of the powder.

[0048] Please see Figure 6In a preferred embodiment of the present invention, the slurry stirring device for ceramic production further includes a reflux assembly 4. The reflux assembly 4 includes a reflux shell 401, a crankshaft 402, a pull rod 403, a reflux cylinder 404, a piston shaft 405, a piston 406, an orifice plate 407, a reflux pipe 408, and a guide pipe 409. The reflux shell 401 is fixedly assembled to the bottom of the sleeve 216, and the crankshaft 402 is rotatably installed in the reflux shell 401, with one end of the crankshaft 402 coaxially connected to the countershaft 217. A pull rod 403 is rotatably sleeved on the other end of shaft 402. The reflux cylinder 404 is fixedly arranged on one end of reflux shell 401. One end of piston shaft 405 is slidably inserted on reflux cylinder 404. The other end of piston shaft 405 is rotatably connected to pull rod 403. Piston 406 is slidably assembled in the inner cavity of reflux cylinder 404 and fixedly connected to piston shaft 405. Orifice plate 407 is fixedly arranged in the inner cavity of reflux cylinder 404. Reflux pipe 408 and drainage pipe 409 are also connected to reflux cylinder 404.

[0049] In practical application, the secondary shaft 217 synchronously drives the crankshaft 402 to rotate during rotation, so that the crankshaft 402 and the pull rod 403 form a crank rocker arm structure, which in turn drives the piston shaft 405 to reciprocate in the first direction x, so that the piston 406 circulates alternately in positive and negative pressure states during synchronous movement. When the inner cavity of the reflux cylinder 404 is in a negative pressure state, the guide pipe 409 draws solvent from the bottom of the mixing vessel 101 into the inner cavity of the reflux cylinder 404. When the inner cavity of the reflux cylinder 404 is in a positive pressure state, the reflux pipe 408 outputs the solvent in the reflux cylinder 404.

[0050] Furthermore, the reflux assembly 4 also includes a one-way check valve 410. Both the reflux pipe 408 and the drainage pipe 409 are provided with one-way check valves 410 to limit the fluid to flow unidirectionally along the drainage pipe 409 into the inner cavity of the reflux cylinder 404, and to limit the fluid to be transported unidirectionally along the inner cavity of the reflux cylinder 404 into the reflux pipe 408.

[0051] Furthermore, the reflux assembly 4 also includes a scraper hopper 411, a scraper port 412, a collector 413, and jet nozzles 414. The scraper hopper 411 is mounted on the guide pipe 409, and a scraper port 412 is opened on one side of the scraper hopper 411. The end of the reflux pipe 408 is connected to the collector 413, which is located at the bottom of the bulk material shell 301. Several jet nozzles 414 are arrayed on the collector 413, and the jet nozzles 414 are inclinedly arranged on the collector 413. The scraper hopper 411 is located at the bottom of the mixing vessel 101. When the scraper hopper 411 rotates with the reflux shell 401, the scraper port 412 on one side of the scraper hopper 411 can scrape the sediment at the bottom of the vessel. The deposits are scraped into the scraper hopper 411, and when the drain pipe 409 is in the suction state, the solvent and deposits in the scraper hopper 411 can be simultaneously sucked into the return cylinder 404. When the inner cavity of the return cylinder 404 is in a positive pressure state, when the piston 406 moves to abut against the orifice plate 407, it can squeeze and crush the large-diameter deposits, so that the crushed particles can pass through the orifice plate 407 and enter the return pipe 408. The end of the return pipe 408 is connected to the collector 413. The jet nozzle 414 on the collector 413 can spray the solvent obliquely to the liquid surface side. The jet wave can be used to wet and disperse the powder floating on the liquid surface and quickly dissolve it into the solvent, reducing the accumulation of powder on the liquid surface.

[0052] The above embodiments of the present invention provide a slurry mixing device for ceramic production. The ceramic powder to be mixed is fed into the dispersion module in batches and quantitatively through the feeding module for dispersion, thereby reducing the formation of agglomerates in the solvent, refining the powder particles and improving the particle size distribution, and making the mixed product more uniform.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slurry mixing device for ceramic production, characterized in that, The slurry mixing device for ceramic production includes: The system includes a vessel body module, a feeding module, and a dispersing module. The vessel body module includes a vessel body assembly, which includes a mixing vessel and a vessel lid, and the vessel lid and the mixing vessel are fixedly connected. The feeding module is movably mounted on the kettle lid and connected to the dispersing module, and is used to drive the dispersing module to rotate continuously in the inner cavity of the mixing kettle; The feeding module is equipped with two sets of alternating valve plates for quantitatively feeding ceramic powder into the mixing vessel cavity; The dispersion module includes a dispersion component, which includes a material shell and bottom-mounted material dispersing holes. The material shell is disposed in the inner cavity of the mixing vessel, one end of which is connected to the feeding module. Several bottom-mounted material dispersing holes are disposed at the bottom of the material shell, which are used to release ceramic powder into the mixing vessel at a low speed. The feeding module includes a feeding assembly, which includes a feeding cylinder, a driven gear ring, a feed inlet, a storage hopper, a material pipe, a main shaft, and a scraper. The feeding cylinder is rotatably mounted on the vessel lid. The driven gear ring is arranged at the outer diameter end of the feeding cylinder. The feed inlet is provided at the top of the feeding cylinder. The storage hopper is fixedly installed in the feed inlet. The material pipe is arranged longitudinally in the feeding cylinder and communicates with the storage hopper. The main shaft is rotatably assembled in the feeding cylinder and the storage hopper, and the end of the main shaft is fixedly arranged on the vessel lid. The scraper is arranged in the storage hopper and fixedly connected to the main shaft.

2. The slurry mixing device for ceramic production according to claim 1, characterized in that, The feeding assembly further includes a valve plate bin, a top valve plate slot, a bottom valve plate slot, a top valve plate, a bottom valve plate, a top arc plate, and a bottom arc plate. The valve plate bin is disposed on the material pipe, and the valve plate bin is provided with a top valve plate slot and a bottom valve plate slot respectively. The top valve plate and the bottom valve plate are elastically slidably assembled in the top valve plate slot and the bottom valve plate slot respectively. The top arc plate and the bottom arc plate are both fixedly assembled on the main shaft, and the top arc plate and the bottom arc plate slide against the top valve plate and the bottom valve plate respectively.

3. The slurry mixing device for ceramic production according to claim 1, characterized in that, The feeding assembly further includes a first bevel gear, a sleeve, a countershaft, and a second bevel gear. The first bevel gear and the main shaft are coaxially and fixedly connected. The sleeve is arranged on the bottom side of the feeding cylinder. One end of the countershaft is rotatably assembled in the sleeve, and the other end of the countershaft is coaxially and fixedly connected to the second bevel gear. The second bevel gear and the first bevel gear are connected in a transmission manner.

4. The slurry mixing device for ceramic production according to claim 3, characterized in that, The dispersing assembly further includes a central bevel gear shaft, a pressing screw, a front traction rod, and a conical pressing cylinder. The dispersing shell and the material pipe are connected. A central bevel gear shaft is fixedly arranged at one end of the dispersing shell. The upper side of one end of the central bevel gear shaft meshes with a first bevel gear, and the lower side of the same end of the central bevel gear shaft meshes with a second bevel gear. The pressing screw is slidably inserted into the central bevel gear shaft. The front traction rod is fixedly connected to the pressing screw. The conical pressing cylinder is fixedly arranged in the dispersing shell, and the front traction rod is slidably inserted into one end of the conical pressing cylinder. A first cavity is provided on one side of the pressing screw. A second cavity is provided between the conical pressing cylinder and the inner wall of the dispersing shell. The second cavity is connected to the bottom dispersing hole. The first cavity and the second cavity are connected to each other.

5. The slurry mixing device for ceramic production according to claim 4, characterized in that, The dispersing assembly further includes a central drive shaft, a tail driven shaft, a traction disc, a slide cylinder, a pulling groove, a spiral groove, and a sliding pin. The central drive shaft is arranged inside the conical pressing cylinder, with one end of the central drive shaft slidably inserted into the front traction rod and the other end of the central drive shaft slidably inserted into the tail driven shaft. The tail driven shaft penetrates the shell of the conical pressing cylinder and is rotatably mounted on one end of the bulk material shell. The traction disc is sleeved on the tail driven shaft and fixedly connected to the front traction rod. The slide cylinder is elastically slidably assembled in the bulk material shell, and a pulling groove is provided at one end of the slide cylinder. The pulling groove is slidably sleeved on the traction disc, and a spiral groove is also provided on the inner wall side of the slide cylinder. The sliding pin is fixedly arranged on the tail driven shaft and slidably assembled in the spiral groove.

6. The slurry mixing device for ceramic production according to claim 1, characterized in that, The dispersion component also includes a discharge trough, which is fixedly arranged at the bottom of the bulk material shell. The inner cavity of the discharge trough is connected to the bottom dispersing hole, and the bottom of the discharge trough is at an angle to the horizontal plane so that the powder is thrown into the mixing vessel along the tangential direction of the bulk material shell cylinder wall.

7. The slurry mixing device for ceramic production according to claim 4, characterized in that, The slurry mixing device for ceramic production also includes a reflux assembly, which includes a reflux shell, a crankshaft, a pull rod, a reflux cylinder, a piston shaft, a piston, an orifice plate, a reflux pipe, and a drain pipe. The reflux shell is fixedly assembled at the bottom of the sleeve. The crankshaft is rotatably installed in the reflux shell, with one end of the crankshaft coaxially connected to the countershaft. The pull rod is rotatably sleeved at the other end of the crankshaft. The reflux cylinder is fixedly arranged at one end of the reflux shell. One end of the piston shaft is slidably inserted into the reflux cylinder, and the other end of the piston shaft is rotatably connected to the pull rod. The piston is slidably assembled in the inner cavity of the reflux cylinder and fixedly connected to the piston shaft. The orifice plate is fixedly arranged in the inner cavity of the reflux cylinder. The reflux cylinder is also connected to the reflux pipe and the drain pipe.

8. The slurry mixing device for ceramic production according to claim 7, characterized in that, The reflux assembly also includes a one-way check valve, a scraper hopper, a scraper port, a collector, and jet nozzles. Both the reflux pipe and the guide pipe are equipped with one-way check valves. The guide pipe is equipped with a scraper hopper, and a scraper port is opened on one side of the scraper hopper. The end of the reflux pipe is connected to a collector. The collector is located at the bottom of the bulk material shell, and several jet nozzles are arranged in an array on the collector. The jet nozzles are arranged at an angle on the collector.

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