Vacuum satellite mixer

Abstract

The invention provides a kind of vacuum satellite mixer, including base, two satellite stirring devices and stirring cylinder;Base is placed in factory floor, two satellite stirring devices are fixed at the two ends of base, stirring cylinder is fixed between two satellite stirring devices, satellite stirring device includes stirring support, stirring transmission system, stirring drive part and two stirring paddle stirring mechanism, stirring support and stirring drive part are fixed on base, stirring mechanism is erected in stirring support, stirring transmission system is connected between the output end of stirring drive part and the input end of stirring mechanism, two satellite stirring devices and stirring cylinder form a cylindrical sealed cavity;After adding powder to the cylindrical sealed cavity, vacuumize, two stirring drive parts of two satellite stirring devices drive two stirring paddles of each stirring mechanism to revolve simultaneously through respective stirring transmission system, two stirring paddles of two satellite stirring devices rotate simultaneously, and the vacuum satellite mixer can uniformly stir powder.

Description

Technical Field

[0001] This invention belongs to the field of battery manufacturing equipment technology, and in particular relates to a vacuum satellite mixer. Background Technology

[0002] The anode of a lithium-ion battery cell is made by coating or laminating lithium-containing amorphous carbon powder onto both sides of copper foil, while the cathode is made by coating or laminating lithium iron phosphate (LiFePO4) powder or nickel manganese cobalt phosphate (NMP) powder onto both sides of aluminum foil. These powders are mixtures; for example, the NMP powder is actually a mixture of nickel powder, manganese powder, cobalt powder, flame retardant powder, binder powder, and conductive agent powder, all of which must be thoroughly stirred. The battery cell is a crucial component of the battery, directly determining its electrochemical performance and safety. The uniformity of the dry powder dispersion directly affects the quality of the cell's electrochemical performance.

[0003] Dry powder mixing requirements:

[0004] 1. Stir and disperse evenly.

[0005] 2. The mixture is flocculent.

[0006] To address this, we developed a vacuum satellite mixer. Summary of the Invention

[0007] The purpose of this invention is to provide a vacuum satellite mixer for uniformly dispersing and mixing powders.

[0008] The present invention is implemented as follows: a vacuum satellite mixer includes a base, two satellite mixing devices and a mixing cylinder; the base is used to place on the factory floor, the two satellite mixing devices are fixed at opposite ends of the base, and the mixing cylinder is fixed in the middle of the two satellite mixing devices, so that the cylinder cavity of the mixing cylinder becomes a cylindrical sealed cavity.

[0009] The satellite mixing device includes a mixing bracket, a mixing transmission system, a mixing drive component, and a mixing mechanism. The mixing bracket and the mixing drive component are fixed on a base, and the mixing mechanism is mounted inside the mixing bracket. The mixing transmission system is connected between the output end of the mixing drive component and the input end of the mixing mechanism. The mixing mechanism includes two mixing blades. The mixing drive component drives the two mixing blades of the mixing mechanism to revolve together through the mixing transmission system, and the two mixing blades rotate simultaneously on their own axes.

[0010] Powder can be added to the cylindrical sealed cavity first, and then a vacuum can be drawn. Then, the two stirring drive components of the two satellite stirring devices drive the two stirring paddles of their respective stirring mechanisms to revolve together through their respective stirring transmission systems. The two stirring paddles of the two satellite stirring devices rotate simultaneously. A vacuum satellite mixer can disperse and stir powder evenly.

[0011] Furthermore, the stirring support includes a stirring base, a stirring shroud, end bushings, and three stirring support sealing rings. The stirring base includes a stirring support base plate, a stirring support upright plate, and a stirring support bracket. The stirring support base plate is fixed to an external machine base. The stirring support upright plate is fixed to the left side of the stirring support base plate and has an edge sealing groove for the stirring shroud and a centrally located spindle through hole. The stirring support bracket is fixed to the right side of the stirring support base plate. The stirring shroud is fixed to the stirring support upright plate with one open end, and the stirring shroud is fixed to the stirring support with its cylindrical body. On the support plate, the end bushing is dynamically matched with the outer end face of the end bushing and is fixed close to the top surface of the two stirring paddles to the other open end of the stirring hood. The left stirring bracket sealing ring is fixed in the sealing groove of the stirring bracket upright plate to the stirring hood to seal the left end of the stirring hood and the right side of the stirring bracket upright plate. The middle stirring bracket sealing ring is fixed in the sealing groove of the left end of the end bushing to seal the left end of the end bushing and the right end of the stirring hood. The right stirring bracket sealing ring is fixed in the outer sealing groove of the end bushing on the outer end face of the right end of the end bushing to seal the external stirring space.

[0012] Furthermore, the stirring mechanism includes a main shaft support assembly, a fixed gear, a main shaft assembly, a rotating drum assembly, an end sealing plate, an end sealing plate sealing strip, and two satellite stirring assemblies. The main shaft support assembly is fixed to the stirring support upright plate. The fixed gear is fixed to the end of the main shaft support assembly near the stirring support upright plate. The main shaft assembly is mounted inside the main shaft support assembly. The rotating drum assembly is fixed to the output end of the main shaft assembly. The end sealing plate is fixed to the rotating drum assembly with its left side facing out. The end sealing plate sealing strip is fixed in the end sealing plate sealing strip groove on the right side of the end sealing plate. The two satellite stirring assemblies are separately mounted inside the rotating drum assembly. The main shaft support assembly, the fixed gear, the power output end portion of the main shaft assembly, the rotating drum assembly, the end sealing plate, and the end sealing plate sealing strip are all part of the main shaft support assembly. The sealing tape and the power input ends of the two satellite stirring groups are sealed inside the stirring hood. The end sealing plate sealing tape dynamically seals the end sealing plate and the left end face of the end bushing fixed to the stirring hood inside the stirring hood. The sealing of the satellite stirring device can prevent dust from entering the external stirring space and ensure the sealing of the external vacuum stirring space. The stirring drive unit drives the main shaft assembly together with the rotating drum assembly through the stirring transmission system, carrying the two satellite stirring groups to revolve around the center line of the main shaft assembly to stir the powder. At the same time, the two satellite stirring groups are driven by the rotating drum assembly and rotated by the fixed gear fixed on the main shaft support assembly to stir the powder. The stirring mechanism can disperse and stir the powder evenly.

[0013] Furthermore, the main shaft support assembly includes a main shaft support cylinder, a main shaft support cylinder end sealing ring, a rotary drum end cover, a rotary drum end cover wear-resistant sleeve, a rotary drum sealing ring, two rotary drum bearings, an inner ring support for the rotary drum bearings, an outer ring support for the rotary drum bearings, and a rotary drum bearing retaining ring. The main shaft support cylinder is aligned with the main shaft through hole of the stirring support upright plate and fixed to the stirring support upright plate with its left end flange. The main shaft support cylinder end sealing ring is fixed to the sealing joint between the left end flange of the main shaft support cylinder and the stirring support upright plate. The fixing gear is fixed to the main shaft support cylinder close to the right end face of the left end flange of the main shaft support cylinder. The rotary drum end cover passes through the main shaft support cylinder, is limited by the left end step of the main shaft support cylinder, and is fixed to the rotary drum assembly. The wear-resistant sleeve of the rotary drum end cover is disposed inside the rotary drum end cover to bear the rotational friction of the main shaft support cylinder. The rotary drum sealing ring is fixed in the sealing groove of the rotary drum end cover to seal the connection with the rotary drum assembly. The inner rings of the two rotary drum bearings pass through the outside of the main shaft support cylinder. The inner ring support of the rotary drum bearing passes through the outside of the main shaft support cylinder and is separated between the inner rings of the two rotary drum bearings to support the inner rings of the two rotary drum bearings. The outer ring support of the rotary drum bearing passes through the outer ring support of the inner ring of the rotary drum bearing and is separated between the outer rings of the two rotary drum bearings to support the outer rings of the two rotary drum bearings. The rotary drum bearing retaining ring is engaged in the retaining ring groove outside the right end of the main shaft support cylinder to limit the right end of the rotary drum bearing.

[0014] Furthermore, the main shaft assembly includes a main shaft and two main shaft bearings. The main shaft includes a central main shaft body, a main shaft power input end at the left end, a main shaft power output end at the right end, and a main shaft bolt groove on the end face of the main shaft power output end. The inner rings of the two main shaft bearings are fixed at both ends of the main shaft body. The main shaft, carrying the two main shaft bearings, passes through the main shaft through hole of the stirring support plate and extends into and through the main shaft support cylinder. The right end of the main shaft power output end and the main shaft bolt groove on its end face are exposed for connecting the rotating drum assembly to output rotational power. The outer rings of the two main shaft bearings are supported inside the main shaft support cylinder. The main shaft power input end remains outside the main shaft through hole of the stirring support plate for connecting the stirring transmission system to input rotational power.

[0015] Furthermore, the rotary drum assembly includes a rotary drum, a rotary bolt, and multiple end-sealing plate flexible connection assemblies. The rotary drum has a rotary bearing seat hole in the center of its left end face, two rotary satellite bearing seat holes on each side of the left end face and the corresponding two on each side of the right end face, multiple sliding sleeve fixing holes around the right end face, multiple sliding sleeve mounting through holes on both sides of the left end face, and a rotary bolt groove in the center of the right end face that has the same width and depth as the main shaft bolt groove and can be aligned when the rotary drum assembly is assembled to the outside of the main shaft support assembly. The rotary bolt is fixed in the main shaft bolt groove, and... Located in the rotating drum groove aligned with the main shaft groove, it is used to output the rotational power of the main shaft to the rotating drum assembly; multiple end-sealing plate flexible connection assemblies pass through multiple sliding sleeve mounting holes and are fixed in multiple sliding sleeve fixing holes to fix the end-sealing plate; multiple end-sealing plate flexible connection assemblies apply sensitive elastic force to the end-sealing plate so that the end-sealing plate, along with the end-sealing plate sealing strip fixed in the end-sealing plate sealing strip groove on the right side of the end-sealing plate, forms a tight dynamic seal with the left end face of the end bushing fixed on the stirring shroud.

[0016] Furthermore, the end-sealing plate flexible connection assembly includes a sliding sleeve, a sliding rod, a loose sleeve, and a compression spring. The sliding sleeve passes through the sliding sleeve mounting hole of the rotary drum and is fixed inside the sliding sleeve fixing hole of the rotary drum. The sliding rod passes through the sliding sleeve mounting hole of the rotary drum and is inserted into the sliding sleeve. The end of the sliding rod protrudes from the sliding sleeve and is exposed outside the right side of the rotary drum. The loose sleeve on the left and the compression spring on the right both pass through the end of the sliding rod exposed outside the right side of the rotary drum. The end faces of the ends of the multiple sliding rods are used to fix the end-sealing plate. The multiple compression springs are kept in a compressed state and can be further compressed to apply a sensitive elastic force to the end-sealing plate.

[0017] Furthermore, the satellite stirring assembly includes a satellite shaft, a satellite gear, two satellite shaft bearings, a satellite shaft end sleeve, and the stirring paddle. The outer rings of the two satellite shaft bearings are respectively fitted into the two satellite bearing seat holes on both sides of the rotating drum. The satellite shaft passes partially through the satellite shaft hole of the end sealing plate from right to left. The middle part of the satellite shaft is fitted into the inner rings of the two satellite shaft bearings. The satellite gear is fixed to the left end of the satellite shaft for meshing with the fixed gear. The satellite shaft end sleeve is fitted outside the right side of the middle part of the satellite shaft and fixed to the right side of the end sealing plate, which is pressed by multiple end sealing plate flexible connection components, to dynamically seal the satellite shaft hole of the end sealing plate. The stirring paddle is fixed outside the left end of the satellite shaft. The satellite gear can be rotated by the fixed gear to make the satellite shaft and the stirring paddle rotate and stir the powder.

[0018] Furthermore, the impeller includes an impeller head, two impeller shoulders, two impeller arms, and an impeller foot. The impeller head is fixed to the left end of the satellite shaft. The two impeller shoulders are symmetrically distributed on both sides of the impeller head. The two impeller arms are respectively connected to the two impeller shoulders. The impeller foot is connected between the two impeller arms. When the satellite shaft, together with the impeller, rotates around the center line of the satellite shaft like a satellite, the top generatrix of the impeller shoulders rotates to form the top surface of the impeller cylinder and is close to the outer end face of the end bushing. The side generatrixes of the two impeller arms twist in opposite directions. The rotating shape forms the side surface of the stirring paddle cylinder, and the bottom generatrix of the stirring paddle foot rotates to form the bottom surface of the stirring paddle cylinder. The top surface, side surface, and bottom surface of the stirring paddle cylinder combine to form the stirring area of ​​the stirring paddle cylinder. When the stirring drive unit drives the two stirring paddles of the stirring mechanism to revolve together like the Earth, the two simultaneously rotating cylindrical parts of the two stirring paddles overlap and revolve together, forming a seamless satellite stirring cylinder stirring area, which can disperse and evenly stir the powder in the satellite stirring cylinder stirring area.

[0019] Furthermore, the stirring cylinder includes a cylinder body, an inlet valve, an NPM recovery valve, an outlet valve, a vacuum valve, a vacuum gauge, an atmospheric valve, and an observation window. The cylinder body includes a hollow cavity, and the cylinder body is fixed between the end bushings of the two satellite stirring devices, making the cavity of the cylinder body a cylindrical sealed cavity. The stirring bracket sealing ring is fixed in the outer sealing groove of the end bushing on the outer end face of the end bushing to seal the cylindrical sealed cavity. The diameter of the cylindrical sealed cavity is such that only a gap is left between the side generatrices of the two stirring blades for the movement of the stirring blades. The length of the cylindrical sealed cavity is such that only two gaps are left between the bottom generatrices of the two stirring blades for the movement of the two stirring blades. The two satellite stirring cylinders of the two satellite stirring devices form a cavity with only a gap for movement between them and the cylindrical sealed cavity. The cylinder has a double-long satellite stirring cylinder, and the two satellite stirring devices can disperse and evenly stir the powder inside the stirring cylinder. The feed valve is fixed to the upper part of the cylinder for adding the raw material powder to be stirred, and the discharge valve is fixed to the lower part of the cylinder for discharging the stirred powder. The vacuum valve, the vacuum gauge, the atmospheric valve, and the observation window are all fixed to the outside of the cylinder. The vacuum valve is used to evacuate the sealed cavity of the cylinder, the vacuum gauge is used to measure and display the vacuum degree inside the sealed cavity of the cylinder, the atmospheric valve is used to break the vacuum in the sealed cavity of the cylinder, and the observation window is used to observe the inside of the sealed cavity of the cylinder. The NPM recovery valve is fixed to the upper part of the cylinder next to the feed valve and is used to remove the micro dust inside the sealed cavity of the cylinder when needed after vacuum stirring.

[0020] The beneficial effects of this vacuum satellite mixer are:

[0021] Two satellite stirring devices and a stirring cylinder form a cylindrical sealed cavity. Powder can be added to the cylindrical sealed cavity first, and then a vacuum can be drawn. Then, the two stirring drive components of the two satellite stirring devices drive the two stirring paddles of their respective stirring mechanisms to revolve together through their respective stirring transmission systems. The two stirring paddles of each of the two satellite stirring devices rotate simultaneously, which can disperse and stir the powder in the stirring area of ​​the satellite stirring cylinder. Attached Figure Description

[0022] Figure 1 Vacuum satellite mixer structural diagram;

[0023] Figure 2 Diagram of satellite mixing device;

[0024] Figure 3 Structure diagram of the stirring support;

[0025] Figure 4 A structural diagram of a satellite mixing device without the mixing shroud;

[0026] Figure 5 Structure diagram of the stirring mechanism;

[0027] Figure 6 Structural diagram of the main shaft support assembly, fixed gear, and stirring support vertical plate;

[0028] Figure 7 Exploded view of the spindle support assembly structure;

[0029] Figure 8 Spindle assembly structure diagram;

[0030] Figure 9 Rotary drum assembly and structural diagram;

[0031] Figure 10 Structural diagram of the rotary drum assembly and satellite mixing assembly;

[0032] Figure 11 Satellite mixing unit structure diagram;

[0033] Figure 12 Agitator structure diagram;

[0034] Figure 13 Diagram showing the assembly structure of the agitator and end liner;

[0035] Figure 14 Diagrams of a stirring impeller cylinder and a satellite stirring cylinder;

[0036] Figure 15 Structure diagram of the stirring tank.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Base;

[0039] 200. Satellite mixing device;

[0040] 210. Stirring support;

[0041] 211. Mixing support; 2111. Mixing bracket base plate; 2112. Mixing bracket upright plate; 21121. Sealing groove between the mixing bracket upright plate and the mixing hood; 21122. Main shaft through hole of the mixing bracket upright plate; 2113. Mixing bracket support plate;

[0042] 212. Stirring cover;

[0043] 213. End bushing; 2131. End bushing outer sealing groove; 2132. End bushing outer end face;

[0044] 214. Stirring support sealing ring;

[0045] 220. Stirring drive system;

[0046] 230. Agitator drive unit;

[0047] 240. Stirring mechanism;

[0048] 241. Spindle support assembly; 2411. Spindle support cylinder; 2412. Spindle support cylinder end seal ring; 2413. Rotary drum end cover; 2414. Rotary drum end cover wear-resistant sleeve; 2415. Rotary drum seal ring; 2416. Rotary drum bearing; 2417. Rotary drum bearing inner ring support; 2418. Rotary drum bearing outer ring support; 2419. Rotary drum bearing retaining ring;

[0049] 242. Fixed gear;

[0050] 243. Spindle assembly; 2431. Spindle; 24311. Spindle body; 24312. Spindle power input end; 24313. Spindle power output end; 24314. Spindle bolt groove;

[0051] 2432. Spindle bearing;

[0052] 244. Rotary drum assembly;

[0053] 2441, Rotary drum; 24411, Rotary drum bearing seat hole; 24412, Rotary drum satellite bearing seat hole; 24413, Sliding sleeve fixing hole; 24414, Sliding sleeve mounting through hole; 24415, Rotary drum bolt groove;

[0054] 2442. Rotary drum bolt; 2443. End sealing plate flexible connection assembly; 24431. Sliding sleeve; 24432. Sliding rod; 24433. Loose sleeve; 24434. Compression spring;

[0055] 245. End sealing plate; 2451. End sealing plate sealing groove; 2452. End sealing plate satellite shaft hole;

[0056] 246. End sealing plate sealing strip;

[0057] 247. Satellite mixing assembly; 2471. Satellite shaft; 2472. Satellite gear; 2473. Satellite shaft bearing; 2474. Satellite shaft end sleeve; 2475. Mixer; 24751. Mixer head; 24752. Mixer shoulder;

[0058] 24753, Agitator arm; 24754, Agitator foot; 2476, Agitator cylinder; 24761, Top surface of agitator cylinder; 24762, Side surface of agitator cylinder; 24763, Bottom surface of agitator cylinder; 2477, Satellite agitator cylinder;

[0059] 300. Stirring drum; 310. Drum body; 311. Drum cavity; 320. Feed valve; 330. NPM recovery valve; 340. Discharge valve; 350. Vacuum valve; 360. Vacuum gauge; 370. Atmospheric valve; 380. Observation window. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0061] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication of two components. For those skilled in the art, the specific meaning of the terms in this invention can be understood according to the specific circumstances.

[0062] See Figure 1This embodiment provides a vacuum satellite mixer for uniformly dispersing and mixing powder. A vacuum satellite mixer includes a base (100), two satellite mixing devices (200), and a mixing drum (300); the base (100) is placed on the factory floor, the two satellite mixing devices (200) are fixed at opposite ends of the base (100), and the mixing drum (300) is fixed in the middle of the two satellite mixing devices (200), so that the cavity (311) of the mixing drum (300) becomes a cylindrical sealed cavity;

[0063] See Figure 2 The satellite mixing device (200) includes a mixing support (210), a mixing transmission system (220), a mixing drive (230), and a mixing mechanism (240). The mixing support (210) and the mixing drive (230) are fixed on the base (100). The mixing mechanism (240) is mounted inside the mixing support (210). The mixing transmission system (220) is connected between the output end of the mixing drive (230) and the input end of the mixing mechanism (240). See also Figure 3 , Figure 4 , Figure 5 , Figure 10 , Figure 11 , Figure 12 The stirring mechanism (240) includes two stirring paddles (2475). The stirring drive (230) drives the two stirring paddles (2475) of the stirring mechanism (240) to revolve together through the stirring transmission system (220), and the two stirring paddles (2475) rotate on their own axis at the same time.

[0064] Powder can be added to the cylindrical sealed cavity first and then vacuumed. Then, the two stirring drive components (230) of the two satellite stirring devices (200) drive the two stirring paddles (2475) of their respective stirring mechanisms (240) to revolve together through their respective stirring transmission systems (220). The two stirring paddles (2475) of the two satellite stirring devices (200) rotate simultaneously. A vacuum satellite mixer can disperse and stir powder evenly.

[0065] Further, see Figure 3 , Figure 4 , Figure 7 and Figure 13 The mixing support (210) includes a mixing base (211), a mixing hood (212), an end bushing (213), and three mixing support sealing rings (214). The mixing base (211) includes a mixing support base plate (2111), a mixing support upright plate (2112), and a mixing support plate (2113). The mixing support base plate (2111) is fixed to the external machine platform, and the mixing support upright plate (2112) is fixed to the left side of the mixing support base plate (2111). It is provided with a sealing groove (21121) for the mixing hood near the edge of the mixing support upright plate (see [reference]). Figure 4 ) and the centrally located stirring support plate main shaft through hole (21122) (see Figure 7 The mixing support plate (2113) is fixed to the right side of the mixing support base plate (2111), and the mixing shroud (212) is fixed to the mixing support upright plate (2112) with one open end. The mixing shroud (212) is fixed to the mixing support plate (2113) with its body (see [reference]). Figure 3 The end bushing (213) is dynamically matched with the outer end face (2132) of the end bushing and close to the top surface of the two agitators (2475) with a small gap (see [link]). Figure 13 ) is fixed to the other open end of the stirring shroud (212) (see Figure 3 See also Figure 3 The left stirring bracket sealing ring (214) is fixed in the stirring bracket upright plate to the stirring hood cylinder sealing groove (21121) to seal the left end of the stirring hood cylinder (212) and the right side of the stirring bracket upright plate (2112). The middle stirring bracket sealing ring (214) is fixed in the sealing groove at the left end of the end bushing (213) to seal the left end of the end bushing (213) and the right end of the stirring hood cylinder (212). The right stirring bracket sealing ring (214) is fixed in the end bushing outer sealing groove (2131) on the outer end face of the right end of the end bushing (213) to seal the external stirring space.

[0066] Further, see Figure 5The mixing mechanism (240) includes a main shaft support assembly (241), a fixed gear (242), a main shaft assembly (243), a rotary drum assembly (244), an end sealing plate (245), an end sealing plate sealing strip (246), and two satellite mixing assemblies (247). The main shaft support assembly (241) is fixed on the mixing support upright plate (2112), the fixed gear (242) is fixed at the end of the main shaft support assembly (241) near the mixing support upright plate (2112), and the main shaft assembly (243) is mounted on the main shaft support assembly (241). Inside 241), the rotating drum assembly (244) is fixed on the output end of the main shaft assembly (243). The end sealing plate (245) is fixed on the left side of the rotating drum assembly (244). The end sealing plate sealing strip (246) is fixed in the end sealing plate sealing strip groove (2451) on the right side of the end sealing plate (245). Two satellite mixing groups (247) are separately mounted inside the rotating drum assembly (244). The main shaft support assembly (241), the fixed gear (242), the power output end of the main shaft assembly (243), and the rotating drum assembly (244) are also included. 4) The power input ends of the end sealing plate (245), the end sealing plate sealing strip (246), and the two satellite stirring units (247) are sealed inside the stirring shroud (212). The end sealing plate sealing strip (246) dynamically seals the end sealing plate (245) and the left end face of the end bushing (213) fixed in the stirring shroud (212) inside the stirring shroud (212). This seal can prevent dust from entering the external stirring space and ensure the seal of the external vacuum stirring space; the stirring drive unit (230) is connected to the stirring shroud (212). The stirring transmission system (220) drives the main shaft assembly (243) together with the rotating drum assembly (244) to carry two satellite stirring assemblies (247) to revolve around the center line of the main shaft assembly (243), which is also the center line of the fixed gear (242), to stir the powder. At the same time, the two satellite stirring assemblies (247) are driven by the rotating drum assembly (244) and rotate on their own axis by the fixed gear (242) fixed on the main shaft support assembly (241) to stir the powder. The stirring mechanism (240) can disperse and stir the powder evenly.

[0067] Furthermore, see Figure 5 , Figure 6 , Figure 7The main shaft support assembly (241) includes a main shaft support cylinder (2411), a main shaft support cylinder end seal ring (2412), a rotary drum end cap (2413), a rotary drum end cap wear sleeve (2414), a rotary drum seal ring (2415), two rotary drum bearings (2416), a rotary drum bearing inner ring support (2417), a rotary drum bearing outer ring support (2418), and a rotary drum bearing retaining ring (2419). The main shaft support cylinder (2411) is aligned with the main shaft through hole (21122) of the stirring support plate with its center aligned with the cylinder. The left flange is fixed to the stirring support plate (2112). The main shaft support cylinder end sealing ring (2412) is fixed to the sealing joint between the left flange of the main shaft support cylinder (2411) and the stirring support plate (2112). The fixed gear (242) is fixed to the main shaft support cylinder (2411) close to the right end face of the left flange of the main shaft support cylinder (2411). The rotating drum end cap (2413) is inserted outside the main shaft support cylinder (2411) and is limited to the left by the left end step of the main shaft support cylinder (2411). Fixed on the rotary drum assembly (244), the wear-resistant sleeve (2414) of the rotary drum end cover is set inside the rotary drum end cover (2413) to bear the rotational friction of the main shaft support cylinder (2411). The rotary drum sealing ring (2415) is fixed in the sealing groove of the rotary drum end cover (2413) to seal the connection with the rotary drum assembly (244). The inner rings of the two rotary drum bearings (2416) pass through the outside of the main shaft support cylinder (2411), and the inner ring support (2417) of the rotary drum bearings passes through the outside of the main shaft support cylinder (2411), separating the two bearings. The inner ring of the two swivel bearings (2416) is supported between the inner rings of the two swivel bearings (2416). The outer ring support (2418) of the swivel bearing passes through the inner ring support (2417) of the swivel bearing and is separated between the outer rings of the two swivel bearings (2416) to support the outer rings of the two swivel bearings (2416). The swivel bearing retaining ring (2419) is engaged in the retaining ring groove outside the right end of the main shaft support cylinder (2411) to limit the right end of the swivel bearing (2416).

[0068] Furthermore, see Figure 5 , Figure 6 , Figure 8The main shaft assembly (243) includes a main shaft (2431) and two main shaft bearings (2432). The main shaft (2431) includes a main shaft body (24311) in the middle, a main shaft power input end (24312) at the left end, a main shaft power output end (24313) at the right end, and a main shaft bolt groove (24314) on the end face of the main shaft power output end (24313). The inner rings of the two main shaft bearings (2432) are fixed at both ends of the main shaft body (24311). The main shaft (2431) carries the two main shaft bearings (2432) through the stirring support. The main shaft through hole (21122) of the stirring support plate (2112) extends into and passes through the main shaft support cylinder (2411). The right end of the main shaft power output end (24313) and the main shaft bolt groove (24314) on its end face are exposed for connecting the rotating drum assembly (244) to output rotational power. The outer rings of the two main shaft bearings (2432) are supported in the main shaft support cylinder (2411). The main shaft power input end (24312) remains outside the main shaft through hole (21122) of the stirring support plate for connecting the stirring transmission system (220) to input rotational power.

[0069] Furthermore, see Figure 5 , Figure 9 , Figure 10 The rotary drum assembly (244) includes a rotary drum (2441), a rotary bolt (2442), and multiple end-sealing plate flexible connection assemblies (2443). The rotary drum (2441) is provided with a rotary bearing seat hole (24411) in the middle of the left end face, two rotary satellite bearing seat holes (24412) on both sides of the left end face and on both sides of the corresponding right end face, multiple sliding sleeve fixing holes (24413) around the right end face, multiple sliding sleeve mounting through holes (24414) on both sides of the left end face, and a rotary bolt groove (24415) in the middle of the right end face that has the same width and depth as the main shaft bolt groove (24314) of the main shaft (2431) and can be aligned when the rotary drum assembly (2444) is assembled outside the main shaft support assembly (241). The rotary bolt (2442) is fixed in the main shaft bolt groove (24415). Inside 4314), and in the rotating drum groove (24415) aligned with the main shaft groove (24314), the rotational power of the main shaft (2431) is output to the rotating drum assembly (244); multiple end-sealing plate flexible connection assemblies (2443) pass through multiple sliding sleeve mounting holes (24414) and are fixed in multiple sliding sleeve fixing holes (24413) for fixing the end-sealing plate (245). Multiple end-sealing plate flexible connection assemblies (2443) apply sensitive elastic force to the end-sealing plate (245) so that the end-sealing plate (245) with the end-sealing plate sealing strip (246) fixed in the end-sealing plate sealing strip groove (2451) on the right side of the end-sealing plate (245) forms a tight dynamic seal with the left end face of the end bushing (213) fixed on the stirring hood (212).

[0070] Furthermore, see Figure 9The end-sealing plate flexible connection assembly (2443) includes a sliding sleeve (24431), a sliding rod (24432), a loose sleeve (24433), and a compression spring (24434). The sliding sleeve (24431) passes through the sliding sleeve mounting through hole (24414) of the rotary drum (2441) and is fixed in the sliding sleeve fixing hole (24413) of the rotary drum (2441). The sliding rod (24432) passes through the sliding sleeve mounting through hole (24414) of the rotary drum (2441) and is installed in the sliding sleeve (24431). The end of the rod (24432) passes through the sliding sleeve (24431) and protrudes outside the right side of the rotary drum (2441). The loop (24433) on the left and the compression spring (24434) on the right both pass through the end of the rod (24432) protruding outside the right side of the rotary drum (2441). The end faces of the rod ends of multiple sliding rods (24432) are used to fix the end sealing plate (245). Multiple compression springs (24434) are kept in a compressed state and can be further compressed, applying a sensitive elastic force to the end sealing plate (245).

[0071] Furthermore, see Figure 5 , Figure 11 The satellite mixing assembly (247) includes a satellite shaft (2471), a satellite gear (2472), two satellite shaft bearings (2473), a satellite shaft end sleeve (2474), and a mixing paddle (2475). The outer rings of the two satellite shaft bearings (2473) are respectively fitted into the two rotating drum satellite bearing seat holes (24412) on both sides of the rotating drum (2441). The satellite shaft (2471) runs from right to left from the end sealing plate satellite shaft hole (2452) of the end sealing plate (245). Figure 8 Partially passing through, the middle of the satellite shaft (2471) is fitted inside the inner rings of two satellite shaft bearings (2473). The satellite gear (2472) is fixed to the left end of the satellite shaft (2471) for meshing with the fixed gear (242). The satellite shaft end sleeve (2474) is fitted outside the right end of the middle of the satellite shaft (2471) and fixed to the right side of the end seal plate (245) which is spring-loaded by multiple end seal plate flexible connection assemblies (2443) (see...). Figure 5 The dynamic sealing end plate satellite shaft hole (2452) serves as the dynamic sealing end plate. The stirring paddle (2475) is fixed on the left side of the satellite shaft (2471). The satellite gear (2472) can be rotated by the fixed gear (242) to carry the satellite shaft (2471) and the stirring paddle (2475) to rotate and stir the powder.

[0072] Furthermore, see Figure 12The impeller (2475) includes an impeller head (24751), two impeller shoulders (24752), two impeller arms (24753), and an impeller foot (24754). The impeller head (24751) is fixed to the left end of the satellite shaft (2471). The two impeller shoulders (24752) are symmetrically distributed on both sides of the impeller head (24751). The two impeller arms (24753) are respectively connected to the two impeller shoulders (24752), and the impeller foot (24754) is connected between the two impeller arms (24753). The satellite shaft (2471) together with the impeller (2475) rotates around the middle of the satellite shaft (2471). When the center line rotates like the moon, the top generatrix of the impeller shoulder (24752) rotates to form the top surface (24761) of the impeller cylinder and is close to the outer end face (2132) of the end bushing (213). The side generatrixes of the two impeller arms (24753) rotate to form the side surface (24762) of the impeller cylinder. The bottom generatrix of the impeller foot (24754) rotates to form the bottom surface (24763) of the impeller cylinder. The top surface (24761), side surface (24762), and bottom surface (24763) of the impeller cylinder combine to form the stirring area of ​​the impeller cylinder (2476).

[0073] Furthermore, see Figure 14 When the stirring drive (230) drives the two stirring paddles (2475) of the stirring mechanism (240) to revolve together like the planet Earth through the stirring transmission system (220), the two simultaneously rotating stirring paddle cylinders (2476) of the two stirring paddles (2475) partially overlap and revolve together to form a stirring area of ​​a gapless satellite stirring cylinder (2477), which can disperse and stir the powder in the stirring area of ​​the satellite stirring cylinder (2477).

[0074] Further, see Figure 15The mixing drum (300) includes a drum body (310), a feed valve (320), an NPM recovery valve (330), a discharge valve (340), a vacuum valve (350), a vacuum gauge (360), an atmospheric valve (370), and an observation window (380). The drum body (310) includes a hollow cylindrical cavity (311). The drum body (310) is fixed between the end bushings (213) of two satellite mixing devices (200), making the cylindrical cavity (311) of the drum body (310) a cylindrical sealed cavity. The sealing ring (214) of the mixing support is fixed in the outer sealing groove (2131) of the end bushing (213) on the outer end face of the end bushing (213) to seal the cylindrical sealing cavity; the diameter of the cylindrical sealing cavity and the side generatrix of the two mixing blades (2475) are only separated by a gap for the movement of the mixing blades (2475), and the length of the cylindrical sealing cavity and the bottom generatrix of the two mixing blades (2475) are only separated by a gap for the movement of the two mixing blades (2475), and the two satellite mixing cylinders of the two satellite mixing devices (200) are... (2477) Forms a double-length satellite stirring cylinder with only a movable gap between it and the sealed cylindrical cavity. Two satellite stirring devices (200) can disperse the powder in the stirring drum (300) evenly. The feed valve (320) is fixed to the upper part of the cylinder (310) for adding the raw material powder to be stirred, and the discharge valve (340) is fixed to the lower part of the cylinder (310) for discharging the stirred powder. Vacuum valve (350), vacuum gauge (360), atmospheric valve (370) and observation window (3 All 80) are fixed outside the cylinder (310). The vacuum valve (350) is used to evacuate the cylindrical sealed cavity. The vacuum gauge (360) is used to measure and display the vacuum level inside the cylindrical sealed cavity. The atmospheric valve (370) is used to break the vacuum in the cylindrical sealed cavity. The observation window (380) is used to observe the inside of the cylindrical sealed cavity. The NPM recovery valve (330) is fixed on the upper part of the cylinder (310) next to the feed valve (320) and is used to remove the micro dust inside the cylindrical sealed cavity when needed after vacuum stirring.

[0075] 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 vacuum satellite blender, comprising: The base (100), two satellite stirring devices (200) and a stirring barrel (300); the base (100) is used for being placed on the ground of a factory building, two satellite stirring devices (200) are fixed at both ends of the base (100), and the stirring barrel (300) is fixed between the two satellite stirring devices (200), so that the barrel cavity (311) of the stirring barrel (300) becomes a cylindrical sealed cavity; The satellite stirring device (200) comprises a stirring support (210), a stirring transmission system (220), a stirring driving member (230) and a stirring mechanism (240), the stirring support (210) and the stirring driving member (230) are fixed on the base (100), the stirring mechanism (240) is arranged in the stirring support (210), and the stirring transmission system (220) is connected between the output end of the stirring driving member (230) and the input end of the stirring mechanism (240); the stirring mechanism (240) comprises two stirring paddles (2475), the stirring driving member (230) drives the two stirring paddles (2475) of the stirring mechanism (240) to revolve together through the stirring transmission system (220), and the two stirring paddles (2475) simultaneously rotate; The cylindrical sealed cavity can be first filled with powder and then vacuumized, then the two stirring driving members (230) of the two satellite stirring devices (200) simultaneously drive the two stirring paddles (2475) of the stirring mechanism (240) through the stirring transmission system (220), and the two stirring paddles (2475) of the two satellite stirring devices (200) simultaneously rotate, so that a vacuum satellite stirring machine can uniformly stir the powder; The stirring support (210) comprises a stirring support base (211), a stirring cover barrel (212), an end bushing (213) and three stirring support sealing rings (214), the stirring support base (211) comprises a stirring support bottom plate (2111), a stirring support vertical plate (2112) and a stirring support supporting plate (2113); The stirring mechanism (240) comprises a main shaft support group (241), a fixed gear (242), a main shaft group (243), a rotating drum group (244), an end sealing plate (245), an end sealing plate sealing belt (246) and two satellite stirring groups (247), the main shaft support group (241) is fixed on the stirring support vertical plate (2112), the fixed gear (242) is fixed on the main shaft support group (241) close to the end of the stirring support vertical plate (2112), the main shaft group (243) is erected in the main shaft support group (241), the rotating drum group (244) is fixed on the output end of the main shaft group (243), the end sealing plate (245) is fixed on the rotating drum group (244) with the left plate surface, the end sealing plate sealing belt (246) is fixed in the end sealing plate sealing belt groove (2451) of the right plate surface of the end sealing plate (245), two satellite stirring groups (247) are separately erected in the rotating drum group (244), the main shaft support group (241), the fixed gear (242), the power output end part of the main shaft group (243), the rotating drum group (244), the end sealing plate (245), the end sealing plate sealing belt (246) and the power input end part of two satellite stirring groups (247) are sealed in the stirring cover cylinder (212), the end sealing plate sealing belt (246) dynamically seals the left end surface of the end sealing plate (245) and the end bushing (213) fixed on the stirring cover cylinder (212) in the stirring cover cylinder (212), the sealing of the satellite stirring device (200) can prevent the dust in the external stirring space from entering and ensure the sealing of the external vacuum stirring space; the stirring driving part (230) drives the main shaft group (243) together with the rotating drum group (244) with two satellite stirring groups (247) to revolve and stir the powder with the center line of the main shaft group (243) as the center line, at the same time, two satellite stirring groups (247) are driven by the fixed gear (242) fixed on the main shaft support group (241) to rotate and stir the powder; the stirring mechanism (240) can uniformly stir the powder.

2. The vacuum satellite mixer according to claim 1, wherein the stirring support base plate (2111) is fixed on the base (100), the stirring support vertical plate (2112) is fixed on the left side of the stirring support base plate (2111), and is provided with a stirring support vertical plate to stirring cover cylinder sealing groove (21121) on the edge and a stirring support vertical plate main shaft through hole (21122) in the middle part, the stirring support supporting plate (2113) is fixed on the right side of the stirring support base plate (2111), the stirring cover cylinder (212) is fixed on the stirring support vertical plate (2112) with one open end, the stirring cover cylinder (212) is fixed on the stirring support supporting plate (2113) with a cylinder body, the end bushing (213) is fixed on the other open end of the stirring cover cylinder (212) with an end bushing outer end face (2132) dynamically matched and closely attached to the top surface of the two stirring paddles (2475), the left stirring support sealing ring (214) is fixed in the stirring support vertical plate to stirring cover cylinder sealing groove (21121) for sealing the left end of the stirring cover cylinder (212) and the right surface of the stirring support vertical plate (2112), the middle stirring support sealing ring (214) is fixed in the sealing groove of the left end of the end bushing (213) for sealing the left end of the end bushing (213) and the right end of the stirring cover cylinder (212), and the right stirring support sealing ring (214) is fixed in the end bushing outer sealing groove (2131) on the outer end face of the right end of the end bushing (213) for sealing the external stirring space.

3. The vacuum satellite mixer according to claim 2, wherein the main shaft support group (241) comprises a main shaft support cylinder (2411), a main shaft support cylinder end sealing ring (2412), a rotating cylinder end cover (2413), a rotating cylinder end cover wear-resistant sleeve (2414), a rotating cylinder sealing ring (2415), two rotating cylinder bearings (2416), a rotating cylinder bearing inner ring support (2417), a rotating cylinder bearing outer ring support (2418), and a rotating cylinder bearing snap spring (2419), the main shaft support cylinder (2411) is fixed on the stirring support vertical plate (2112) with the cylinder center aligned with the stirring support vertical plate main shaft through hole (21122) and the left end flange, the main shaft support cylinder end sealing ring (2412) is fixed between the left end flange of the main shaft support cylinder (2411) and the sealing joint of the stirring support vertical plate (2112), the fixed gear (242) is fixed on the main shaft support cylinder (2411) close to the right end surface of the left end flange of the main shaft support cylinder (2411), the rotating cylinder end cover (2413) is arranged outside the main shaft support cylinder (2411) and is limited by the left end step of the main shaft support cylinder (2411) left, and is fixed on the rotating cylinder group (244), the rotating cylinder end cover wear-resistant sleeve (2414) is arranged in the rotating cylinder end cover (2413) to bear the rotating friction of the main shaft support cylinder (2411), the rotating cylinder sealing ring (2415) is fixed in the sealing groove of the rotating cylinder end cover (2413) to seal the connection with the rotating cylinder group (244), the inner rings of the two rotating cylinder bearings (2416) are arranged outside the main shaft support cylinder (2411), the rotating cylinder bearing inner ring support (2417) is arranged outside the main shaft support cylinder (2411) and is separated between the inner rings of the two rotating cylinder bearings (2416) to support the inner rings of the two rotating cylinder bearings (2416), the rotating cylinder bearing outer ring support (2418) is arranged outside the rotating cylinder bearing inner ring support (2417) and is separated between the outer rings of the two rotating cylinder bearings (2416) to support the outer rings of the two rotating cylinder bearings (2416), and the rotating cylinder bearing snap spring (2419) is arranged in the snap spring groove outside the right end of the main shaft support cylinder (2411) to right-limit the right end rotating cylinder bearing (2416).

4. The vacuum satellite blender of claim 3, said main shaft set (243) comprises a main shaft (2431) and two main shaft bearings (2432), said main shaft (2431) comprises a main shaft shaft body (24311) in the middle, a main shaft power input end (24312) at the left end, a main shaft power output end (24313) at the right end and a main shaft bolt slot (24314) on the end face of said main shaft power output end (24313), the inner rings of two said main shaft bearings (2432) are fixed on both ends of said main shaft shaft body (24311), said main shaft (2431) with two said main shaft bearings (2432) passes through said blender support upright plate main shaft through hole (21122) of said blender support upright plate (2112) and extends into said main shaft support cylinder (2411), the right end exposes said main shaft power output end (24313) and said main shaft bolt slot (24314) on the end face thereof for connecting the output rotary power of said drum set (244), the outer rings of two said main shaft bearings (2432) are supported in said main shaft support cylinder (2411), said main shaft power input end (24312) is left outside said blender support upright plate main shaft through hole (21122) for connecting the input rotary power of said blender drive train (220).

5. The vacuum satellite blender of claim 4, said drum set (244) comprises a drum drum (2441), a drum bolt (2442) and a plurality of end seal plate flexible connection assemblies (2443), said drum drum (2441) is provided with a drum bearing seat hole (24411) in the middle of the left end face, two drum satellite bearing seat holes (24412) on both sides of the left end face and corresponding two drum satellite bearing seat holes (24412) on both sides of the right end face, a plurality of slide sleeve fixing holes (24413) on the right end face periphery, a plurality of slide sleeve mounting through holes (24414) on both sides of the left end face and a drum bolt slot (24415) in the middle of the right end face which is consistent with the slot width and slot depth of said main shaft bolt slot (24314) and can be aligned when said drum set (244) is assembled to said main shaft support set (241) outside; said drum bolt (2442) is fixed in said main shaft bolt slot (24314) and located in said drum bolt slot (24415) aligned with said main shaft bolt slot (24314) for outputting the rotary power of said main shaft (2431) to said drum set (244); a plurality of said end seal plate flexible connection assemblies (2443) are respectively fixed in a plurality of said slide sleeve fixing holes (24413) through a plurality of said slide sleeve mounting through holes (24414) for fixing said end seal plate (245), a plurality of said end seal plate flexible connection assemblies (2443) apply sensitive elastic force to said end seal plate (245) to make said end seal plate (245) with said end seal belt (246) fixed in said end seal belt slot (2451) on the right side of said end seal plate (245) tightly dynamically sealed with the left end face of said end bushing (213) fixed on said blender cover cylinder (212).

6. The vacuum satellite blender of claim 5, the end seal plate soft link assembly (2443) comprising a sliding sleeve (24431), a sliding rod (24432), a sliding sleeve (24433) and a compression spring (24434), the sliding sleeve (24431) being fixed in a sliding sleeve fixing hole (24413) of the rotary drum (2441) through a sliding sleeve mounting via (24414) of the rotary drum (2441), the sliding rod (24432) being threaded in the sliding sleeve (24431) through the sliding sleeve mounting via (24414) of the rotary drum (2441), a rod tail of the sliding rod (24432) being exposed outside a right face of the rotary drum (2441), the sliding sleeve (24433) and the compression spring (24434) being threaded outside the rod tail of the sliding rod (24432) exposed outside the right face of the rotary drum (2441) from left to right, end faces of the rod tails of the sliding rods (24432) being used for fixing the end seal plate (245), the compression springs (24434) all being kept in a compressed state and being able to be continuously compressed, the end seal plate (245) being applied with sensitive elastic force.

7. The vacuum satellite blender of claim 6, the satellite stirring group (247) comprising a satellite shaft (2471), a satellite gear (2472), two satellite shaft bearings (2473), a satellite shaft end sleeve (2474) and the stirring paddle (2475), outer rings of the two satellite shaft bearings (2473) being respectively sleeved in two rotary drum satellite bearing seat holes (24412) of two faces of the rotary drum (2441), the satellite shaft (2471) being partially threaded from right to left through an end seal plate satellite shaft hole (2452) of the end seal plate (245), a middle part of the satellite shaft (2471) being sleeved in inner rings of the two satellite shaft bearings (2473), the satellite gear (2472) being fixed at a left end of the satellite shaft (2471) for meshing with the fixed gear (242), the satellite shaft end sleeve (2474) being sleeved outside a middle part of a right end of the satellite shaft (2471) and being fixed on the right face of the end seal plate (245) pressed by the end seal plate soft link assemblies (2443) to dynamically seal the end seal plate satellite shaft hole (2452), the stirring paddle (2475) being fixed outside the left end of the satellite shaft (2471), the satellite gear (2472) being able to be driven by the fixed gear (242) to rotate the satellite shaft (2471) together with the stirring paddle (2475) to stir powder.

8. The vacuum satellite blender of claim 7, said blender paddle (2475) comprising a blender paddle head (24751), two blender paddle shoulders (24752), two blender paddle arms (24753) and a blender paddle foot (24754), said blender paddle head (24751) fixed outside the left end of said satellite shaft (2471), two said blender paddle shoulders (24752) symmetrically distributed on both sides of said blender paddle head (24751), two said blender paddle arms (24753) respectively connected to two said blender paddle shoulders (24752), said blender paddle foot (24754) connected between two said blender paddle arms (24753); when said satellite shaft (2471) rotates around the center line of said satellite shaft (2471) with said blender paddle (2475) like a satellite, the top surface generatrix of said blender paddle shoulders (24752) rotates to form a blender paddle cylinder top surface (24761) and sticks to said end bushing outer end surface (2132) of said end bushing (213), the reverse torsion side surface generatrix of two said blender paddle arms (24753) rotates to form a blender paddle cylinder side surface (24762), the bottom surface generatrix of said blender paddle foot (24754) rotates to form a blender paddle cylinder bottom surface (24763), said blender paddle cylinder top surface (24761), said blender paddle cylinder side surface (24762) and said blender paddle cylinder bottom surface (24763) combine to form a blender area of a blender paddle cylinder (2476); when said stirring drive (230) drives two said blender paddles (2475) of said stirring mechanism (240) to revolve like planets through said stirring transmission system (220), two said blender paddle cylinders (2476) of two said blender paddles (2475) revolve together while self-rotating partially overlap to form a blender area of a satellite blender cylinder (2477) without gap, which can uniformly disperse and stir powder in the stirring area of said satellite blender cylinder (2477).

9. The vacuum satellite mixer according to claim 2, wherein the stirring cylinder (300) comprises a cylinder body (310), an inlet valve (320), an NPM recovery valve (330), an outlet valve (340), a vacuum valve (350), a vacuum gauge (360), an atmospheric valve (370) and an observation window (380), the cylinder body (310) comprises a hollow cylinder cavity (311), the cylinder body (310) is fixed between two end bushings (213) of the satellite stirring devices (200), so that the cylinder cavity (311) of the cylinder body (310) becomes a cylindrical sealing cavity, the stirring support sealing ring (214) is fixed in an end bushing outer sealing groove (2131) on the outer end surface of the end bushing (213) to seal the cylindrical sealing cavity; the diameter of the cylindrical sealing cavity is only left with a gap for the movement of two stirring paddles (2475) between the side generatrices of the two stirring paddles (2475), the length of the cylindrical sealing cavity is only left with a gap for the movement of two stirring paddles (2475) between the bottom generatrices of the two stirring paddles (2475), two satellite stirring cylinders (2477) of two satellite stirring devices (200) form a double-length satellite stirring cylinder which is only left with a movement gap with the cylindrical sealing cavity, and two satellite stirring devices (200) can uniformly and dispersedly stir the powder in the stirring cylinder (300); the inlet valve (320) is fixed on the upper part of the cylinder body (310) for adding the raw powder to be stirred, the outlet valve (340) is fixed on the lower part of the cylinder body (310) for discharging the stirred powder, the vacuum valve (350), the vacuum gauge (360), the atmospheric valve (370) and the observation window (380) are all fixed outside the cylinder body (310), the vacuum valve (350) is used for vacuumizing the cylindrical sealing cavity, the vacuum gauge (360) is used for measuring and displaying the vacuum degree in the cylindrical sealing cavity, the atmospheric valve (370) is used for breaking the vacuum of the cylindrical sealing cavity, and the observation window (380) is used for observing the inside of the cylindrical sealing cavity, and the NPM recovery valve (330) is fixed on the upper part of the cylinder body (310) beside the inlet valve (320) and is used for drawing away the fine dust in the cylindrical sealing cavity when necessary after vacuum stirring.

Images