A water fly ball mill for processing mineral medicinal materials

Abstract

The present application relates to a kind of water fly ball mill for mineral medicinal material water fly processing, including machine box, power box with double-shaft speed reducer motor is fixed in the top surface of machine box, the two output shaft end faces of double-shaft speed reducer motor are vertically symmetrical and connected with U-shaped frame respectively, each U-shaped frame is equipped with the stainless steel tank body of tiltable, the ceramic tank body is sleeved in stainless steel tank body, the tank opening of stainless steel tank body is detachably sealed with tank cover;The ceramic tank body is axially detachably separated with sieve filter component for filtering qualified fine powder in the side close to tank opening in, sieve filter component divides ceramic tank body into grinding cavity and liquid collection cavity;Grinding cavity is placed with ceramic ball;The grinding cavities of two ceramic tank bodies are supplied with water from respective tank bottom during rotation by same water inlet component;The liquid collection cavities of two ceramic tank bodies are extracted from respective tank cover during rotation by same liquid extraction component.The present application can avoid overfine crushing and agglomeration caused by long-term retention, and can effectively prevent coarse powder from mixing into finished product.

Description

Technical Field

[0001] This invention belongs to the technical field of mineral and medicinal material grinding equipment, and specifically relates to a water-milling ball mill for water-milling processing of mineral and medicinal materials. Background Technology

[0002] Water-milling is a core processing technique for traditional Chinese medicine minerals and shellfish. It is especially suitable for mineral medicines such as cinnabar and realgar that are insoluble in water and contain trace amounts of soluble toxic impurities. The core principle is repeated wet grinding, hydraulic classification of coarse and fine powders, removal of coarse particles and soluble toxic impurities, and finally obtaining ultrafine medicinal powders with uniform particle size, high purity and stable medicinal properties.

[0003] The existing water-mill structure mainly consists of a casing, a dual-shaft geared motor, a U-shaped frame, and a double-layer grinding tank composed of a stainless steel tank and a ceramic tank. During operation, it performs concentrated wet grinding at a fixed speed and for a fixed duration. After grinding, the material is discharged as a whole and then externally filtered, dehydrated, and dried. This conventional equipment has some process defects: the equipment adopts a "one-time centralized grinding, post-processing sorting" mode, which cannot replicate the traditional water-mill process of "immediate separation of qualified fine powder and re-grinding of coarse residue in the tank". During the grinding process, qualified fine powder is retained in the tank for a long time, which can easily lead to excessively fine powder and agglomeration due to continuous grinding. At the same time, coarse particles are mixed into the finished product without being fully ground, resulting in uneven powder particle size.

[0004] Therefore, the present invention provides an improved water-milling ball mill for water-milling processing of mineral medicinal materials. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a water-milling ball mill for the water-milling processing of mineral medicinal materials. The specific technical solution is as follows: This invention provides a water-milling ball mill for water-milling mineral medicinal materials, including a chassis containing a control cabinet, a power box containing a dual-shaft reduction motor fixed on the top surface of the chassis, the two output shafts of the dual-shaft reduction motor passing through the corresponding sides of the power box, and the end faces of the two output shafts being vertically and symmetrically connected to U-shaped frames, each U-shaped frame containing a tiltable stainless steel tank, the stainless steel tank containing a matching ceramic tank, and the opening of the stainless steel tank being detachably sealed with a tank cover; The ceramic tank is axially and detachably equipped with a sieve assembly for filtering qualified fine powder near the tank opening. The sieve assembly divides the interior of the ceramic tank into a grinding chamber and a liquid collection chamber. The grinding chamber is located between the sieve assembly and the bottom of the tank, and the liquid collection chamber is located between the sieve assembly and the tank opening. Ceramic balls are placed in the grinding chamber for grinding mineral medicinal materials with water. The grinding chambers of the two ceramic tanks are supplied with water from their respective bottoms during rotation via the same water inlet assembly; the liquid collection chambers of the two ceramic tanks are drawn from their respective lids during rotation via the same liquid extraction assembly.

[0006] As a preferred embodiment of the present invention, the water inlet assembly includes a horizontally arranged T-shaped pipe. The inlet of the T-shaped pipe is connected to a solenoid valve, and its two opposite outlets are symmetrically connected to inverted L-shaped pipes. The bottom of the inverted L-shaped pipe is radially connected to a screw-fitting connector that is axially rotatably sleeved on the corresponding output shaft. An L-shaped hole is provided on the output shaft. One end of the L-shaped hole is located on the end face of the output shaft and is connected to the bottom of the grinding chamber of the corresponding ceramic tank through a telescopic hose. The other end of the hole is connected to the inside of the screw-fitting connector.

[0007] As a preferred embodiment of the present invention, the rotary joint includes a sealing ring groove, which is rotatably and sealingly fitted onto the corresponding output shaft via a first bearing fixed to its two end faces; the top surface of the sealing ring groove is radially connected to the bottom opening of the corresponding inverted L-shaped tube, and the interior of the sealing ring groove is radially connected to the opening of the corresponding L-shaped hole; the T-shaped tube is fixed to the top surface of the power box.

[0008] As a preferred embodiment of the present invention, the liquid extraction assembly includes a vertically mounted Y-shaped tube, the outlet of which is connected to a suction pump, and two opposite inlet ports of which are symmetrically connected to Z-shaped tubes; the inlet port of the Z-shaped tube is connected to the liquid collection chamber of the corresponding ceramic tank through a U-shaped tube; one end of the U-shaped tube is rotatably sealed to the middle of the corresponding tank cover through a second bearing sleeved on it, and the other end is axially slidably sealed to the inlet port of the corresponding Z-shaped tube; the middle of the U-shaped tube is supported by a shifting support assembly and can move laterally.

[0009] As a preferred embodiment of the present invention, the U-shaped tube extends into the corresponding liquid collection cavity and is connected downward to an L-shaped liquid extraction tube, wherein the lateral portion of the liquid extraction tube maintains a clearance fit with the inner bottom wall of the liquid collection cavity.

[0010] As a preferred embodiment of the present invention, the U-shaped tube extends into the corresponding liquid collection cavity and is axially connected to a cylindrical cover. The longitudinal part of the suction tube is radially connected to the bottom of the rear end face of the cylindrical cover. A cross is axially connected to the inner side of the front port of the cylindrical cover. An impeller is rotatably connected to the center of the cross. A straight rod is axially connected to the middle of the impeller. The straight rod rotates and seals through the rear end face of the cylindrical cover, and a silicone scraper is vertically connected to the end of the straight rod. The length of the silicone scraper is the same as the diameter of the filter surface of the sieve assembly, and the filter surface of the sieve assembly is in contact with the side of the corresponding silicone scraper.

[0011] As a preferred embodiment of the present invention, a plurality of silicone scrapers are integrally formed and evenly distributed along the long side of the side of the silicone scraper that contacts the filter surface of the sieve assembly, and the size of the silicone scrapers is adapted to the filter pore diameter of the sieve assembly.

[0012] As a preferred embodiment of the present invention, the sieve assembly includes an annular boss, which is axially fixed to the inner peripheral wall of the liquid collection cavity of the corresponding ceramic tank. An anti-collision sieve plate is detachably attached to the annular surface of the annular boss facing the tank cover. The anti-collision sieve plate has a plurality of sieve holes evenly distributed on it, and the diameter of the sieve holes is smaller than the outer diameter of the ceramic balls in the corresponding grinding cavity. An annular groove is provided circumferentially along the outer edge of the sieve holes on the end face of the anti-collision sieve plate facing the tank cover. A filter sieve plate is interference-fitted into the annular groove. The filter sieve plate has a plurality of sieve holes evenly distributed on it, and the diameter of the sieve holes is adapted to the particle size of the qualified fine powder.

[0013] As a preferred embodiment of the present invention, a filter element for intercepting toxic impurities is connected in series in one straight section of the Z-shaped tube.

[0014] As a preferred embodiment of the present invention, the grinding chamber of the ceramic tank has a perforation in the middle or lower part of the bottom of the tank, and a one-way valve is embedded in the perforation. The one-way valve includes a cylindrical valve housing, which is fitted into the through hole. A through hole is provided on the rear end face of the valve housing, which is connected to the port of a corresponding telescopic hose. A retaining ring is integrally formed circumferentially in the middle of the inner wall of the valve housing. A conical valve core is abutted on the annular surface of the retaining ring facing the grinding chamber. A spring is axially connected between the back of the valve core and the outer edge of the through hole. The valve core is rotatably connected to a conical rotating nozzle. The outer circumferential surface of the rotating nozzle has multiple obliquely through-hole water outlet grooves evenly distributed around it, and the outer diameter of the rotating nozzle is the same as the inner diameter of the front port of the valve housing.

[0015] The beneficial effects of this invention are: 1. In this invention, the sieve assembly divides the ceramic tank into a grinding chamber and a liquid collection chamber. During the grinding process, qualified fine powder passes through the sieve assembly and enters the liquid collection chamber immediately, and is discharged in real time by the liquid extraction assembly, avoiding excessive grinding and agglomeration caused by long-term retention. Unqualified coarse particles are retained in the grinding chamber and continuously ground until the particle size is qualified, thereby effectively preventing coarse powder from being mixed into the finished product and ensuring that the output powder has a highly concentrated and uniform particle size.

[0016] 2. In this invention, the water inlet assembly supplies water to the grinding chamber from the bottom of the tank, and the liquid extraction assembly extracts liquid from the liquid collection chamber on the side of the tank cover, forming a continuous and stable liquid flow circulation during rotational grinding. The impact force generated by the continuous water inlet from the bottom of the tank effectively inhibits powder deposition at the bottom of the grinding chamber, keeping the ceramic balls and medicinal materials in a good suspended and tumbling state, avoiding excessively high local concentrations, and effectively improving grinding efficiency.

[0017] 3. In this invention, when the dual-shaft geared motor drives the tank to rotate, the water inlet assembly continuously supplies water from the bottom of the tank, forming a directional liquid flow from the bottom of the tank to the opening of the tank. This liquid flow not only carries qualified fine powder through the sieve assembly, but also dynamically washes the surface of mineral particles, causing trace amounts of soluble toxic impurities in medicinal materials such as cinnabar and realgar to dissolve preferentially, and is discharged by the liquid extraction assembly with the filtrate for subsequent filtration treatment. This enhances the purification and detoxification effect on the basis of physical grading, and improves the purity of processed products and the safety of medication. Attached Figure Description

[0018] Figure 1 A schematic diagram of the existing waterjet ball mill structure is shown. Figure 2 A cross-sectional view of an existing waterjet ball mill structure is shown; Figure 3 A three-dimensional structural schematic diagram of the water-jet ball mill in this invention is shown; Figure 4 A three-dimensional structural schematic diagram of the water-jet ball mill in this invention is shown from another perspective; Figure 5 A cross-sectional view of the water-jet ball mill in this invention is shown; Figure 6 It shows Figure 5 Enlarged view of the structure at part A in the middle; Figure 7 It shows Figure 5 Enlarged view of the structure of part B in the middle; Figure 8 It shows Figure 5 Enlarged view of the structure of part C in the middle; Figure 9 A three-dimensional structural schematic diagram of the rotating nozzle in this invention is shown; Figure 10 This invention illustrates a schematic diagram of the structure when the sieve assembly is separated from the corresponding ceramic tank. Figure 11 The diagram shows the structure of the can lid and the filter assembly assembled with the shift support component in this invention when disassembled.

[0019] The diagram shows: 1. Chassis; 11. Control cabinet; 12. Power box; 2. Dual-shaft geared motor; 21. Output shaft; 211. L-shaped hole; 3. U-shaped frame; 4. Screw assembly; 41. Screw support rod; 42. Positioning screw; 421. Threaded groove; 5. Stainless steel tank; 51. Ceramic tank; 511. Straight convex rib; 52. Tank lid; 53. Locking cap clamp; 54. Annular convex rib; 6. Water inlet assembly; 61. T-tube; 62. Inverted L-shaped tube; 63. Tight-fitting connector; 631. Sealing ring groove; 632. First bearing; 64. Telescopic hose; 641. Valve body; 6411. Retaining ring; 642. Valve core; 643. Spring; 644. 6441. Rotary nozzle; 65. Water outlet groove; 7. Solenoid valve; 7. Liquid extraction assembly; 71. Y-shaped tube; 72. Z-shaped tube; 73. U-shaped tube; 731. Second bearing; 732. Liquid extraction tube; 733. Cylindrical cover; 734. Cross; 735. Impeller; 736. Straight rod; 737. Silicone scraper; 738. Silicone shavings; 74. Suction pump; 75. Filter element; 8. Shift support assembly; 81. Suspension bracket; 82. Slider; 821. Slot; 83. Slide rail; 831. Limiting rod; 832. Pin; 9. Screening assembly; 91. Annular boss; 92. Anti-collision screen plate; 921. Annular groove; 93. Filter screen plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Example 1 To address the technical problems in the background section, the following water-milling ball mill for water-milling processing of mineral medicinal materials is provided: Combination Figures 1 to 5 As shown, a water-milling ball mill for water-milling mineral medicinal materials includes a chassis 1 containing a control cabinet 11. A power box 12 containing a dual-shaft reduction motor 2 is fixed on the top surface of the chassis 1. The two output shafts 21 of the dual-shaft reduction motor 2 pass through the corresponding sides of the power box 12, and the end faces of the two output shafts 21 are respectively vertically and symmetrically connected to U-shaped frames 3. Each U-shaped frame 3 is provided with a tiltable stainless steel tank 5. A ceramic tank 51 that is adapted to it is fitted inside the stainless steel tank 5. The opening of the stainless steel tank 5 is detachably sealed with a tank cover 52. The ceramic tank 51 is axially and detachably equipped with a sieve filter assembly 9 for filtering qualified fine powder on the side near the tank opening. The sieve filter assembly 9 divides the interior of the ceramic tank 51 into a grinding chamber and a liquid collection chamber. The grinding chamber is located between the sieve filter assembly 9 and the bottom of the tank, and the liquid collection chamber is located between the sieve filter assembly 9 and the tank opening. Ceramic balls are placed in the grinding chamber for grinding mineral medicinal materials with water. The grinding chambers of the two ceramic tanks 51 are supplied with water from the bottom of their respective tanks during rotation through the same water inlet assembly 6; the liquid collection chambers of the two ceramic tanks 51 are drawn from their respective tank covers 52 during rotation through the same liquid extraction assembly 7.

[0022] By adopting the above technical solution, a sieve assembly 9 is axially detachable and installed adjacent to the tank opening, dividing the interior of the ceramic tank 51 into an independent grinding chamber and a liquid collection chamber. The volume of the grinding chamber is larger than that of the liquid collection chamber. During the grinding process, qualified fine powder can immediately pass through the sieve assembly 9 into the liquid collection chamber and be discharged out of the tank in real time by the liquid extraction assembly 7. This prevents qualified fine powder from being retained in the grinding chamber for a long time, effectively avoiding over-grinding and powder agglomeration caused by continuous grinding. At the same time, substandard coarse particles cannot pass through the sieve assembly 9 and are forced to remain in the grinding chamber to continue interacting with the ceramic balls until the particle size is qualified. This eliminates the problem of coarse particles being mixed into the finished product and ensures the concentration and uniformity of the output powder particle size.

[0023] The system employs a water inlet assembly 6 to supply water from the bottom of the grinding chambers in both ceramic tanks 51, combined with a liquid extraction assembly 7 to extract liquid from the collection chamber on the side of the tank cover 52. This collaborative design establishes a continuous and stable liquid circulation system during the rotational grinding process. The impact force generated by the continuous water inlet at the bottom of the tanks effectively suppresses powder deposition in the dead corners at the bottom of the grinding chambers, ensuring that the ceramic balls and mineral medicinal materials remain in a good suspended and tumbling state, thus avoiding the reduction in grinding efficiency caused by excessively high local concentrations.

[0024] During the rotation of the tank by the U-shaped frame 3 driven by the dual-shaft geared motor 2, the water inlet assembly 6 continuously supplies water to the grinding chamber from the bottom of the tank, forming a directional liquid flow from the bottom to the opening. This liquid flow not only assists in carrying qualified fine powder through the sieve assembly 9, but also dynamically washes the surface of mineral particles during the grinding process, causing trace amounts of soluble toxic impurities in medicinal materials such as cinnabar and realgar to dissolve preferentially and be carried away by the liquid extraction assembly 7 along with the filtrate for subsequent filtration. This enhances the purification and detoxification effect while performing physical grading, improving the purity and safety of the processed products.

[0025] In actual grinding of cinnabar, ceramic balls and cinnabar with iron filings removed are first placed in the grinding chamber. Then, the sieve assembly 9 is installed, and the lid 52 is closed. Water, 3 to 5 times the weight of the medicinal material, is added through the water inlet assembly 6. The cinnabar is wet-crushed for 5 to 10 minutes at a speed of 250 to 400 rpm. Then, the liquid extraction assembly 7 is opened to extract the suspension containing qualified fine powder from the collection chamber. While extracting, the water inlet assembly 6 continuously supplies water to maintain a suitable liquid level in the grinding chamber (preferably, a flow meter can be connected in series on the liquid extraction assembly 7 and the water inlet assembly 6 to balance the flow rates of the inlet and outlet liquids). This cycle is repeated multiple times. The extracted suspension is filtered and centrifuged to obtain powdered solid, which is then further dried in a hot air circulation box to obtain cinnabar powder.

[0026] It should be noted that the control cabinet 11, the dual-shaft geared motor 2, and other conventional components of the water jet ball mill are all existing technologies. Their detailed structures can be found in existing literature and journals, and they can also be purchased directly on the market, or assembled from parts purchased on the market, etc. They are not the subject of this patent and will not be described in detail here.

[0027] like Figure 1 and Figure 2 As shown, the stainless steel tank 5 is connected to the corresponding U-shaped frame 3 through two sets of symmetrically arranged screw-fixing components 4 on its outer circumference. The fixing assembly 4 includes a pivot rod 41 and a positioning screw 42. One end of the pivot rod 41 is fixedly connected to the outer circumferential surface of the stainless steel tank 5, and the other end is rotatably connected to the cantilever end of the corresponding U-shaped frame 3. The positioning screw 42 is threaded through the cantilever of the corresponding U-shaped frame 3 and is radially screwed and locked to the threaded groove 421 fixed on the outer circumferential surface of the tail of the stainless steel tank 5 when the stainless steel tank 5 is flipped to a horizontal position.

[0028] By adopting the above technical solution, and by setting up the swivel assembly 4, the stainless steel tank 5 is given the ability to tilt around the fulcrum through the rotatable connection between the swivel support rod 41 and the cantilever end of the U-shaped frame 3, thus realizing convenient tilting loading and unloading operations. At the same time, when the stainless steel tank 5 is flipped to the horizontal working position, the positioning screw 42 is radially screwed and locked to the threaded groove 421 fixed on the outer circumference of the tail of the tank. This structure can provide rigid radial locking force during grinding rotation, effectively resisting the deflection tendency of the tank caused by the shift of the center of gravity or vibration, ensuring reliable horizontal position locking, and improving the stability and safety of equipment operation.

[0029] like Figure 1 and Figure 2 As shown, the stainless steel tank body 5 has an annular protrusion 54 integrally formed on the outer circumference of the tank opening, and the annular protrusion 54 and the tank cover 52 are detachably locked together by a matching locking clamp 53.

[0030] Using the above technical solution, the annular protrusion 54 integrally formed on the outer edge of the stainless steel tank body 5 opening, in conjunction with the matching locking clamp 53, achieves a quick-locking and clamping action for the tank cover 52. Compared to traditional flange bolt connections, this structure can generate a uniform radial clamping force on the circumference of the tank opening through a single clamp, ensuring consistent and adjustable sealing pressure between the tank cover 52 and the tank opening, and preventing slurry leakage due to uneven local clamping force. Preferably, a sealing gasket (not shown in the figure) is embedded in the contact surface between the tank cover 52 and the stainless steel tank body 5 to enhance sealing performance. At the same time, the disassembly and locking operation of the locking clamp 53 is convenient, shortening the auxiliary time for opening and closing the tank cover 52.

[0031] like Figure 5 and Figure 10 As shown, the inner wall of the stainless steel tank 5 is fixed with multiple straight protrusions 511 at equal intervals in the circumference, and the outer wall of the ceramic tank 51 is provided with multiple straight grooves (not shown in the figure) at equal intervals in the circumference. Each straight groove is axially engaged with the corresponding straight protrusion 511.

[0032] Using the above technical solution, circumferentially spaced straight protruding ribs 511 are provided on the inner wall of the stainless steel tank 5, and corresponding straight grooves are opened on the outer wall of the ceramic tank 51, with the two engaging axially. When transmitting rotational torque, this structure relies on the mechanical shear-resistant surface formed by the straight protruding ribs 511 embedded in the straight grooves to eliminate the circumferential slippage of the ceramic tank 51 relative to the stainless steel tank 5, ensuring that the two rotate completely synchronously.

[0033] like Figure 8 , Figure 10 and Figure 11 As shown, the sieve assembly 9 includes an annular boss 91, which is axially fixed on the inner peripheral wall of the liquid collection chamber of the corresponding ceramic tank 51. An anti-collision sieve plate 92 is detachably attached to the annular surface of the annular boss 91 facing the tank cover 52. The anti-collision sieve plate 92 has multiple sieve holes evenly distributed on it, and the diameter of the sieve holes is smaller than the outer diameter of the ceramic balls in the corresponding grinding chamber. An annular groove 921 is provided on the end face of the anti-collision sieve plate 92 facing the tank cover 52 along the outer edge of its sieve holes. A filter sieve plate 93 is interference-fitted into the annular groove 921. The filter sieve plate 93 has multiple sieve holes evenly distributed on it, and the diameter of the sieve holes is adapted to the particle size of the qualified fine powder.

[0034] Using the above technical solution, the sieve assembly 9 adopts a double-layer sieve plate structure. The annular boss 91, fixed to the inner wall of the ceramic tank 51, provides a stable axial mounting base for the entire sieve assembly 9. The anti-collision sieve plate 92, attached to the side facing the tank cover 52, has a sieve aperture smaller than the outer diameter of the ceramic balls, effectively blocking high-speed splashing ceramic balls during grinding, preventing them from directly impacting and damaging the finely sized filter sieve plate 93. The filter sieve plate 93 is interference-fitted to the end face of the anti-collision sieve plate 92 via an annular groove 921, and its sieve aperture is matched to the qualified fine powder particle size, ensuring that only qualified powder enters the collection chamber. This split-type combined structure has both impact protection and grading functions, and each component can be independently disassembled and replaced, facilitating maintenance and adjustment of grading accuracy.

[0035] According to the pharmacopoeia's statutory grading standards (2020 edition of the Chinese Pharmacopoeia) and industry standard quality control: the finished water-milled cinnabar should pass through a 200-mesh (75μm) sieve and be free of particles and bright stars when rubbed by hand.

[0036] like Figures 3 to 6 As shown, the water inlet assembly 6 includes a horizontally arranged T-shaped pipe 61. A solenoid valve 65 is connected to the inlet of the T-shaped pipe 61, and two opposite outlets are symmetrically connected to inverted L-shaped pipes 62. The bottom of the inverted L-shaped pipe 62 is radially connected to a screw-fitting connector 63 axially rotatably mounted on the corresponding output shaft 21. An L-shaped hole 211 is provided on the output shaft 21. One end of the L-shaped hole 211 is located on the end face of the output shaft 21 and is connected to the bottom of the grinding chamber of the corresponding ceramic tank 51 via a telescopic hose 64. The other end of the hole is connected to the inside of the screw-fitting connector 63. Preferably, the telescopic hose 64 is an elastic spiral hose or an elastic corrugated hose.

[0037] Using the above technical solution, the water inlet assembly 6 divides one water inlet into two through a horizontally arranged T-shaped pipe 61, achieving simultaneous water supply to both tanks. The inverted L-shaped pipe 62 connects to the screw-on connector 63, and, in conjunction with the L-shaped hole 211 opened in the output shaft 21, guides the water to the bottom of the tank, and then sends it into the grinding chamber through the telescopic hose 64. Preferably, the telescopic hose 64 adopts an elastic spiral or elastic wave structure, and its redundant length can fully adapt to the relative displacement and bending deformation caused by the tilting action of the stainless steel tank 5. This prevents the pipeline from being pulled out or bent and suffocated when the tank is tilted, while also ensuring a continuous water supply and guaranteeing that the pipeline remains unobstructed during dynamic water supply.

[0038] like Figure 6 As shown, the rotary joint 63 includes a sealing ring groove 631, which is rotatably and sealingly fitted onto the corresponding output shaft 21 via a first bearing 632 fixed to its two end faces; the top surface of the sealing ring groove 631 is radially connected to the bottom opening of the corresponding inverted L-shaped tube 62, and the interior of the sealing ring groove 631 is radially connected to the opening of the corresponding L-shaped hole 211; the T-shaped tube 61 is fixed to the top surface of the power box 12.

[0039] Using the above technical solution, the rotary joint 63 rotatably seals the sealing ring groove 631 onto the output shaft 21 via the first bearing 632, allowing the sealing ring groove 631, as a stationary component, to achieve dynamic sealing with the rotating output shaft 21. Preferably, an annular sealing washer (not shown in the figure) is embedded in the contact surface between the sealing ring groove 631 and the output shaft 21. This structure ensures the free rotation of the output shaft 21 while utilizing the internal annular cavity of the sealing ring groove 631 to smoothly guide the static water flow from the inverted L-shaped pipe 62 to the orifice of the L-shaped hole 211 that rotates with the shaft, achieving low-friction, continuous water flow transfer between the moving and stationary components. Furthermore, the first bearing 632 can effectively withstand radial loads, ensuring good alignment and minimal wear of the sealing pair under long-term rotational conditions, thus extending the seal life.

[0040] like Figures 3 to 5 As shown, the liquid extraction assembly 7 includes a vertically mounted Y-shaped tube 71. The outlet of the Y-shaped tube 71 is connected to a suction pump 74 (the outlet of the suction pump 74 can be connected to subsequent filtration equipment, or the extracted suspension can be collected and filtered). Two opposite inlet ports are symmetrically connected to Z-shaped tubes 72. The inlet port of the Z-shaped tube 72 is connected to the liquid collection chamber of the corresponding ceramic tank 51 via a U-shaped tube 73. One end of the U-shaped tube 73 is rotatably sealed and inserted into the middle of the corresponding tank cover 52 via a second bearing 731 sleeved on it, while the other end is axially slidably sealed and inserted into the inlet port of the corresponding Z-shaped tube 72. The middle of the U-shaped tube 73 is supported by a shifting support assembly 8 and allows for lateral movement. Preferably, the suction pump 74 is a flexible hose pump.

[0041] Using the above technical solution, in the liquid extraction assembly 7, the two inlet branches of the Y-shaped tube 71 converge downwards at an acute angle, allowing the two powder-containing suspensions to converge into the downstream discharge main pipe in the same direction, eliminating turbulence and pulsation caused by opposing collisions, and ensuring a stable suction flow rate of the suction pump 74 without severe hydraulic shock. One end of the U-shaped tube 73 is rotatably sealed to the middle of the rotating tank cover 52 through the second bearing 731, which does not hinder the free rotation of the tank body and maintains the continuity of the liquid extraction path; its other end is axially slidably sealed inside the inlet of the Z-shaped tube 72, which can accommodate the displacement when the tank cover 52 is opened or closed. The suction pump 74 is a flexible hose pump, in which only the flexible hose contacts and transports the suspension containing mineral particles during operation, without impellers or other hard rotating parts, avoiding the erosion and wear of the pump body metal surface by high-speed mineral particles, and effectively improving the durability of vulnerable parts.

[0042] like Figures 3 to 5 as well as Figure 11As shown, the shift support assembly 8 includes a suspension frame 81, which longitudinally passes through and supports the middle of the corresponding U-shaped tube 73; a slider 82 is vertically connected to the bottom surface of the suspension frame 81, and the slider 82 is laterally slidably mounted on a slide rail 83. The slide rail 83 is arranged along the straight section of the Z-shaped tube 72, and the longitudinal section of the slide rail 83 is "I" shaped.

[0043] Using the above technical solution, the shift support assembly 8 utilizes a suspension frame 81 that longitudinally passes through the middle of the U-shaped tube 73 to provide reliable support. The suspension frame 81 is slidably mounted on a slide rail 83 with an I-shaped longitudinal section via a slider 82. This slide rail 83 provides longitudinal constraint to the slider 82 to prevent it from detaching, while also ensuring that the slider 82 slides smoothly laterally along the straight section of the Z-shaped tube 72. During the opening and closing of the can lid 52, the U-shaped tube 73 can adaptively adjust its lateral position using this sliding structure, ensuring that its end always maintains an axial sliding seal with the Z-shaped tube 72.

[0044] like Figures 3 to 5 as well as Figure 11 As shown, an inverted L-shaped limiting rod 831 is longitudinally installed on the end face of the slide rail 83 away from the can cover 52. A pin 832 is vertically movably inserted on the horizontal part of the limiting rod 831. When the slider 82 moves to abut against the limiting rod 831, the pin 832 engages with the slot 821 opened on the top surface of the slider 82. When the can lid 52 is sealed to the stainless steel can body 5, the slider 82 is located at the end of the slide rail 83 away from the limiting rod 831; when the slider 82 abuts against the limiting rod 831, the pipe opening corresponding to the U-shaped tube 73 is still inserted into the liquid inlet of the corresponding Z-shaped tube 72.

[0045] Using the above technical solution, an inverted L-shaped limiting rod 831 is set on the side of the slide rail 83 away from the tank cover. This, along with a movable pin 832 and a slot 821 on the slider 82, constitutes a mechanical anti-detachment locking mechanism. When the tank cover 52 is opened to its maximum stroke, the slider 82 moves to abut against the limiting rod 831. At this time, the pin 832 falls into the slot 821 to achieve insertion and locking, preventing the slider 82 from accidentally sliding back. Simultaneously, this limiting position is configured to ensure that the corresponding opening of the U-shaped tube 73 remains inserted into the liquid inlet of the Z-shaped tube 72. This provides the operator with a clear end-stroke limit signal while also ensuring the pipe anti-detachment and sealing functions.

[0046] Example 2 Combination Figure 5 , Figure 8 and Figure 11 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, as Figure 5As shown, the U-shaped tube 73 extends into the corresponding liquid collection cavity and is connected downward to an L-shaped liquid extraction tube 732. The transverse part of the liquid extraction tube 732 maintains a clearance fit with the inner bottom wall of the liquid collection cavity.

[0047] With the above technical solution, the inlet of the suction pipe 732 is always located in the liquid layer at the bottom of the collection chamber, ensuring that the pipe opening is always submerged in the suspension during the suction process, effectively preventing air intake, thereby maintaining stable air pressure inside the tank and preventing cavitation or pipeline pulsation of the suction pump 74. At the same time, during the rotation of the tank, the suction pipe 732, which extends laterally into the liquid, acts as a physical barrier for the suspension in the chamber, generating a local turbulence and stirring effect, causing the powder settled at the bottom to be resuspended, ensuring a uniform and stable concentration of the suspension in the collection chamber, and thus ensuring that the qualified fine powder suspension extracted each time has a consistent solid content, which is beneficial to the batch-to-batch quality consistency of subsequent filtration and drying processes.

[0048] like Figure 8 As shown, the U-shaped tube 73 extends into the corresponding liquid collection chamber and is axially connected to the cylindrical cover 733. The longitudinal part of the suction tube 732 is radially connected to the bottom of the rear end face of the cylindrical cover 733. A cross 734 is axially connected to the inner side of the front port of the cylindrical cover 733. An impeller 735 is rotatably connected to the center of the cross 734. A straight rod 736 is axially connected to the middle of the impeller 735. The straight rod 736 rotatably and sealably passes through the rear end face of the cylindrical cover 733, and a silicone scraper 737 is vertically connected to the end of the straight rod 736. The length of the silicone scraper 737 is the same as the diameter of the filter surface of the filter assembly 9, and the filter surface of the filter assembly 9 is in contact with the side of the corresponding silicone scraper 737.

[0049] Using the above technical solution, during the liquid extraction process, when the liquid carrying qualified fine powder enters the cylindrical cover 733 from the extraction pipe 732, the liquid flow energy impacts and drives the impeller 735 to rotate at the center of the cross 734. This rotational motion is transmitted to the silicone scraper 737 via the straight rod 736. Since the length of the silicone scraper 737 is the same as the diameter of the filter surface of the sieve assembly 9 and they are in close contact with each other, when the impeller 735 rotates, the silicone scraper 737 continuously scrapes the entire filter surface of the filter screen plate 93 circumferentially, promptly removing the powder cake layer and bridging particles adhering to the surface of the sieve holes, effectively delaying the increase of filtration resistance and maintaining a long-term stable filtration flux. This structure requires no additional power source, relying entirely on the liquid flow energy of the extraction itself to achieve a self-cleaning function, reducing the frequency of manual maintenance.

[0050] like Figure 8 and Figure 11 As shown, on the side of the silicone scraper 737 that contacts the filter surface of the filter assembly 9, a plurality of silicone scrapers 738 are integrally formed and evenly distributed along its long side. The size of the silicone scrapers 738 is adapted to the filter pore size of the filter assembly 9.

[0051] Using the above technical solution, the silicone material possesses excellent flexibility and elastic deformation capabilities. As the silicone scraper 738 rotates with the silicone scraper 737 through each filter hole, it can adaptively extend into the filter channels of the filter screen plate 93, pushing out or pushing away wedge-shaped or adhered particles that are stuck deep within the channels and cannot be scraped off by a flat surface. This structure extends the cleaning effect from the filter surface to the interior of the filter holes, achieving a three-dimensional active unblocking effect from the surface to the holes. This effectively eliminates deep blockage of the filter holes by fine powder, ensuring that the filter assembly 9 maintains a high permeability during long-term circulating liquid extraction, thereby ensuring the continuous and stable operation of the water-jetting process.

[0052] Example 3 Combination Figures 3 to 5 as well as Figure 7 , Figure 9 and Figure 11 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, as Figures 3 to 5 as well as Figure 11 As shown, a filter element 75 for trapping toxic impurities is connected in series in one straight section of the Z-shaped tube 72.

[0053] By employing the above technical solution, the filter element 75 selectively traps and captures trace amounts of soluble mercury salts, heavy metal ions, and other highly toxic impurities dissolved during the grinding of cinnabar as they enter the extraction pipeline along with the suspension. Meanwhile, qualified micron-sized ultrafine powder, due to differences in particle size and material affinity, can smoothly pass through the filter element 75 into the subsequent collection stage. This solves the problem that relying solely on subsequent physical solid-liquid separation methods such as filtration and centrifugation cannot effectively remove dissolved toxic impurities. By integrating chemical adsorption or chelation purification processes into the continuous extraction circuit, physical grading and chemical purification are completed simultaneously, effectively improving the safety of processed products.

[0054] Preferably, the filter element 75 is a silver-modified activated carbon fiber filter element: a porous high specific surface area adsorption type filter element, which is suitable for adsorbing highly toxic soluble impurities such as soluble mercury salts and heavy metal ions dissolved from cinnabar. It is water-resistant, has no powder adsorption residue, and is suitable for continuous filtration of wet suspensions.

[0055] The filter element 75 is a chelating resin microporous filter element: equipped with heavy metal specific chelating functional groups, it can target and capture soluble heavy metal toxic ions, and does not adsorb inorganic mineral ultrafine powder. It is a special filter element for removing impurities from mineral medicines.

[0056] Both of the above-mentioned chelation / adsorption type toxic and impurity interception filter elements 75 are existing technologies. Their detailed structures can be found in existing literature and journals, and they can also be purchased directly on the market, or components can be purchased on the market to assemble them, etc. They are not the subject of this patent and will not be described in detail here.

[0057] like Figure 7 and Figure 9 As shown, the grinding chamber of the ceramic tank 51 has a perforation (not shown in the figure) in the middle or lower part of the bottom of the tank, and a one-way valve is embedded in the perforation; The one-way valve includes a cylindrical valve housing 641, which is fitted into the through hole. A through hole is provided on the rear end face of the valve housing 641, which is connected to the port of the corresponding telescopic hose 64. A retaining ring 6411 is integrally formed in the middle of the inner wall of the valve housing 641. A conical valve core 642 is abutted on the annular surface of the retaining ring 6411 facing the grinding cavity. A spring 643 is axially connected between the back of the valve core 642 and the outer edge of the through hole. A conical rotating nozzle 644 is rotatably connected to the front of the valve core 642. The outer circumferential surface of the rotating nozzle 644 has multiple obliquely through-hole water outlet grooves 6441 evenly distributed around it, and the outer diameter of the front of the rotating nozzle 644 is the same as the inner diameter of the front port of the valve housing 641.

[0058] Using the above technical solution, when water enters, the water overcomes the tension of the spring 643 and pushes open the conical valve core 642, allowing the water to flow out through the annular gap between the valve core 642 and the inner wall of the valve housing 641. When water entry stops, the spring 643 pushes the valve core 642 back to its original position against the ring surface of the retaining ring 6411, and the back pressure of the slurry in the grinding chamber achieves automatic shut-off, effectively preventing the slurry in the chamber from flowing back into the pipeline and causing blockage or contamination. Furthermore, when the jet water is ejected through multiple obliquely penetrating water outlet grooves 6441 evenly distributed on the outer circumference of the rotating nozzle 644, the tangential reaction force generated by the oblique liquid flow drives the rotating nozzle 644 to rotate at high speed around its axis, thereby dynamically scattering and ejecting a rotating water flow with enhanced impact into the grinding chamber. Because the one-way valve is located in the middle or lower part of the tank, it is precisely aligned with the high-density enrichment area of ​​the cinnabar, water and ceramic ball mixture during the grinding process. The high-pressure rotating water flow can powerfully scour the surface of mineral particles, break up the diffusion boundary layer wrapped around the particle surface, and continuously renew the solid-liquid contact interface. This effectively promotes the dissolution mass transfer efficiency of trace soluble toxic impurities from the inside of the particles to the liquid phase. At the same time, the hydraulic impact helps to break up agglomerates, further enhancing the dual effects of detoxification and pulverization of water-based processing.

[0059] Working principle and usage process of this invention: When using this invention, first, open the can lid 52, place the ceramic ball and the mineral medicine (such as cinnabar) after removing iron filings into the grinding chamber of the ceramic can body 51, install the sieve assembly 9, and fix the anti-collision sieve plate 92 and the filter sieve plate 93 on the annular boss 91 in sequence, then close the can lid 52 and lock it with the locking clamp 53.

[0060] Then, the control cabinet 11 is started, and the dual-axis geared motor 2 drives the U-shaped frame 3 through the output shaft 21 to rotate the stainless steel tank 5 and the internal ceramic tank 51 synchronously. At the same time, the solenoid valve 65 of the water inlet assembly 6 opens, and the water flows through the T-shaped pipe 61 to the sealing ring groove 631 of the screw-fit connector 63 through the inverted L-shaped pipe 62. Then, it is delivered to the one-way valve at the bottom of the tank through the L-shaped hole 211 in the output shaft 21 and the telescopic hose 64. The water pressure overcomes the force of the spring 643 to open the valve core 642, and the water flows out through the gap between the valve core and the valve body 641. After passing through the oblique water outlet groove 6441 of the rotating nozzle 644, it is rotated and sprayed into the grinding chamber, dynamically washing the surface of the mineral particles and maintaining the liquid level.

[0061] Next, after grinding for the set time, the suction pump 74 of the liquid extraction assembly 7 is activated. Fine powder with the required particle size in the grinding chamber passes through the filter screen 93 with the liquid and enters the collection chamber, where it is further blocked by the anti-collision screen 92. The suspension in the collection chamber is extracted through the L-shaped extraction pipe 732 and, as it flows through the cylindrical cover 733, drives the impeller 735 to rotate. The impeller 735, through the straight rod 736, drives the silicone scraper 737 and the scraper 738 to scrape the filter surface and clear the filter holes. The suspension then passes through the U-shaped pipe 73, the Z-shaped pipe 72, and the filter element 75 connected in series therein (which traps soluble toxic impurities), and is discharged and collected after flowing into the Y-shaped pipe 71.

[0062] During the extraction process, the water inlet component 6 continuously replenishes water to balance the liquid level, achieving a "grinding and selection" cycle. Qualified suspensions are continuously discharged, while coarse particles are retained in the grinding chamber by the sieving component 9 for further grinding until the batch processing is complete. Finally, the collected suspension is subjected to external filtration, centrifugation, and drying to obtain the finished ultrafine medicinal powder.

[0063] 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 water-milling ball mill for water-milling processing of mineral medicinal materials, comprising a chassis (1) containing a control cabinet (11), a power box (12) containing a dual-shaft reduction motor (2) fixed on the top surface of the chassis (1), the two output shafts (21) of the dual-shaft reduction motor (2) passing through the corresponding sides of the power box (12) respectively, and the end faces of the two output shafts (21) being vertically and symmetrically connected to U-shaped frames (3), each U-shaped frame (3) being provided with a tiltable stainless steel tank (5), the stainless steel tank (5) being fitted with a ceramic tank (51) adapted to it, and the opening of the stainless steel tank (5) being detachably sealed with a tank cover (52), characterized in that: The ceramic tank (51) is axially and detachably equipped with a sieve assembly (9) for filtering qualified fine powder near the tank opening. The sieve assembly (9) divides the interior of the ceramic tank (51) into a grinding chamber and a liquid collection chamber. The grinding chamber is located between the sieve assembly (9) and the bottom of the tank, and the liquid collection chamber is located between the sieve assembly (9) and the tank opening. Ceramic balls are placed in the grinding chamber for grinding mineral medicinal materials with water. The grinding chambers of the two ceramic tanks (51) are supplied with water from their respective bottoms during rotation through the same water inlet assembly (6); the liquid collection chambers of the two ceramic tanks (51) are drawn from their respective lids (52) during rotation through the same liquid extraction assembly (7).

2. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 1, characterized in that: The water inlet assembly (6) includes a horizontally arranged T-shaped pipe (61), the water inlet of the T-shaped pipe (61) is connected to a solenoid valve (65), and its two opposite water outlets are symmetrically connected to inverted L-shaped pipes (62). The bottom of the inverted L-shaped pipe (62) is radially connected to a screw-fitting connector (63) that is axially rotatably sleeved on the corresponding output shaft (21). An L-shaped hole (211) is provided on the output shaft (21). One end of the L-shaped hole (211) is located on the end face of the output shaft (21) and is connected to the bottom of the grinding chamber of the corresponding ceramic tank (51) through a telescopic hose (64). The other end of the hole is connected to the inside of the screw-fitting connector (63).

3. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 2, characterized in that: The sealing joint (63) includes a sealing ring groove (631), which is rotatably and sealingly fitted onto the corresponding output shaft (21) by a first bearing (632) fixed to its two end faces; the top surface of the sealing ring groove (631) is radially connected to the bottom opening of the corresponding inverted L-shaped tube (62), and the interior of the sealing ring groove (631) is radially connected to the opening of the corresponding L-shaped hole (211); the T-shaped tube (61) is fixed to the top surface of the power box (12).

4. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 1, characterized in that: The liquid extraction assembly (7) includes a vertically mounted Y-shaped tube (71), the outlet of which is connected to a suction pump (74), and two opposite inlet ports are symmetrically connected to Z-shaped tubes (72); the inlet port of the Z-shaped tube (72) is connected to the liquid collection chamber of the corresponding ceramic tank (51) through a U-shaped tube (73); one end of the U-shaped tube (73) is rotatably sealed and inserted into the middle of the corresponding tank cover (52) through a second bearing (731) sleeved on it, and the other end is axially slidably sealed and inserted into the inlet port of the corresponding Z-shaped tube (72); the middle of the U-shaped tube (73) is supported by a shifting support assembly (8) and can move laterally.

5. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 4, characterized in that: The U-shaped tube (73) extends into the corresponding liquid collection cavity and is connected downward to an L-shaped liquid extraction tube (732). The transverse part of the liquid extraction tube (732) maintains a clearance fit with the inner bottom wall of the liquid collection cavity.

6. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 5, characterized in that: The U-shaped tube (73) extends into the corresponding liquid collection cavity and is axially connected to the cylindrical cover (733). The longitudinal part of the suction tube (732) is radially connected to the bottom of the rear end face of the cylindrical cover (733). A cross (734) is axially connected to the inner side of the front port of the cylindrical cover (733). An impeller (735) is rotatably connected to the center of the cross (734). A straight rod (736) is axially connected to the middle part of the impeller (735). The straight rod (736) rotates and seals through the rear end face of the cylindrical cover (733). A silicone scraper (737) is vertically connected to the end of the straight rod (736). The length of the silicone scraper (737) is the same as the diameter of the filter surface of the filter assembly (9). The filter surface of the filter assembly (9) is in contact with the side of the corresponding silicone scraper (737).

7. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 6, characterized in that: On the side of the silicone scraper (737) that contacts the filter surface of the filter assembly (9), a plurality of silicone scrapers (738) are integrally formed and evenly distributed along its long side direction. The size of the silicone scrapers (738) is adapted to the filter pore size of the filter assembly (9).

8. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 1, characterized in that: The sieve assembly (9) includes an annular boss (91), which is axially fixed on the inner peripheral wall of the liquid collection cavity of the corresponding ceramic tank (51). An anti-collision sieve plate (92) is detachably attached to the annular surface of the annular boss (91) facing the tank cover (52). The anti-collision sieve plate (92) has a plurality of sieve holes evenly distributed on it, and the diameter of the sieve hole is smaller than the outer diameter of the ceramic ball in the corresponding grinding cavity. An annular groove (921) is provided circumferentially along the outer edge of the sieve hole on the end face of the anti-collision sieve plate (92) facing the tank cover (52). A filter sieve plate (93) is interference-fitted in the annular groove (921). The filter sieve plate (93) has a plurality of sieve holes evenly distributed on it, and the diameter of the sieve hole is adapted to the particle size of the qualified fine powder.

9. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 2, characterized in that: A filter element (75) for trapping toxic impurities is connected in series in one straight section of the Z-shaped tube (72).

10. A water-milling ball mill for water-milling processing of mineral medicinal materials according to claim 9, characterized in that: The grinding chamber of the ceramic tank (51) has a perforation in the middle or lower part of the bottom of the tank, and a one-way valve is embedded in the perforation; The one-way valve includes a cylindrical valve housing (641) which is fitted into the through hole. A through hole is provided on the rear end face of the valve housing (641), which is connected to the port of the corresponding telescopic hose (64). A retaining ring (6411) is integrally formed in the middle of the inner wall of the valve housing (641). A conical valve core (642) is abutted on the annular surface of the retaining ring (6411) facing the grinding cavity. A spring (643) is axially connected between the back of the valve core (642) and the outer edge of the through hole. The valve core (642) is rotatably connected to a conical rotating nozzle (644). The outer circumferential surface of the rotating nozzle (644) is evenly distributed with multiple obliquely through-hole water outlet grooves (6441), and the outer diameter of the front of the rotating nozzle (644) is the same as the inner diameter of the front port of the valve housing (641).

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