CN114433334A - Preparation device of photoluminescent powder - Google Patents

Abstract

The invention provides a device for preparing photoluminescent powder, which relates to the technical field of preparation of photoluminescent powder and comprises a grinding device and a containing device, wherein the bottom of the grinding device is connected inside the containing device, the grinding device comprises an installation supporting rod, a driving motor, a central rotating rod, auxiliary grinding equipment and a range control device, one end of the installation supporting rod is connected to the outer wall of the driving motor, and one end of the central rotating rod is connected with the driving motor. The invention adopts the mode of arranging the auxiliary grinding equipment around the central rotating rod, improves the contact range of the whole grinding device and the luminous powder block, can press the luminous powder block with larger volume from the upper part and the lower part, and the pressure of the two parts can be finally concentrated in the luminous powder block, thereby accelerating the crushing speed of the luminous powder block to achieve the purpose of improving the grinding efficiency, and the auxiliary grinding equipment can be further close to the grinding disc after the luminous powder block with larger volume is crushed into a plurality of sub-blocks with smaller volume.

Description

Preparation device of photoluminescent powder

Technical Field

The invention relates to the technical field of preparation of photoluminescent powder, in particular to a preparation device of photoluminescent powder.

Background

Luminescent powder, also known as noctilucent and light-storing luminescent pigment, is a powdery photoinduced light-storing luminescent material, realizes the luminescent function by absorbing various visible lights, and can be recycled for multiple times. The product contains no radioactive elements, and can be used as an additive.

However, in the prior art, the conventional luminescent powder preparation device generally needs to prepare a luminescent agent, then dry and dehydrate the luminescent agent, and finally grind the luminescent agent into luminescent powder for use, the conventional grinding device generally directly puts the dried luminescent powder block into a grinding disc for grinding, while the conventional grinding mode drives the grinding disc to continuously rotate through a motor, the luminescent powder block is ground into powder by friction and extrusion, because the grinding disc needs to continuously rotate in the grinding process, a part of the powder block is scattered above the grinding disc, at this time, an operator needs to continuously sweep the upper powder block below the grinding disc, certain limitations exist, and extra spaces are left in the conventional container for containing the powder block, and the extra spaces may cause a part of the powder block to be retained in the space during subsequent grinding, the powder block can not be completely processed by the grinding equipment, and the final product has caking.

Disclosure of Invention

The invention aims to solve the defects in the prior art, the auxiliary grinding equipment is arranged around the central rotating rod, the contact range of the whole grinding device and the luminous powder block is enlarged, the luminous powder block with larger volume can be pressed from the upper part and the lower part, the two pressures are finally concentrated in the luminous powder block, the crushing speed is increased, the purpose of improving the grinding efficiency is achieved, and the auxiliary grinding equipment can be further close to a grinding disc after the larger luminous powder block is crushed into a plurality of small-volume blocks.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a photoluminescence powder preparation facilities, includes grinder and accommodate device, the inside at accommodate device is connected to grinder's bottom, grinder includes erection bracing pole, driving motor, central bull stick, supplementary grinding device and range control device, erection bracing pole's one end is connected on driving motor's outer wall, the one end and the driving motor of central bull stick are connected, the bottom of central bull stick is provided with the abrasive disc, supplementary grinding device is located around the central bull stick, the top at supplementary grinding device is connected to range control device's one end, one side of range control device is connected on accommodate device's inner wall.

As a preferred embodiment, the auxiliary grinding device comprises an installation bearing module, the bottom of the installation bearing module is provided with a pressing grinding cone, the inside of the installation bearing module is provided with a motor, a crushing notch is formed in the outer wall of the pressing grinding cone, two sides of the installation bearing module are provided with movable rotating rods, the other ends of the movable rotating rods are connected to the outer wall of the central rotating rod, a separation rotating ring is arranged at the joint of the movable rotating rods and the central rotating rod, and the inner wall of the separation rotating ring is connected with the central rotating rod.

The beneficial effect of adopting the further scheme is that: the luminous powder block with large volume can be pressed from the upper part and the lower part, and the pressure at the two parts can be finally concentrated in the luminous powder block, so that the crushing speed is accelerated, and the purpose of improving the grinding efficiency is achieved.

As a preferred embodiment, route restriction through-hole has been seted up to the inside of activity bull stick, the inside of route restriction through-hole is provided with the activity slide bar, install spiral cutting blade on the outer wall of activity slide bar, the both ends of activity slide bar are provided with the butt joint module, the wiring end of activity slide bar is connected with the wiring end that the module was born in the installation, install the framework of kick-backing on the outer wall of activity bull stick, the framework of kick-backing is located the handing-over department that the module was born in activity bull stick and installation.

The beneficial effect of adopting the further scheme is that: grind mechanism can carry out the regulation of height and angle through the activity bull stick to guarantee that the inside luminous piecemeal of device can keep under the state of constantly moving, can promote the grinding scope of this device, avoid some miniature luminous powder pieces not to obtain abundant grinding.

As a preferred embodiment, the rebounding framework comprises an accommodating shell, a torsion spring is arranged inside the accommodating shell, an ejecting fixture block is arranged at the other end of the torsion spring, and the ejecting fixture block and the butt joint module are located on the same side of the movable rotating rod.

The beneficial effect of adopting the further scheme is that: the movable slide rod is pushed to limit the through hole to move along the route arranged in the movable rotating rod so as to press the luminous powder block between the grinding cone and the central rotating rod.

As a preferred embodiment, the range control device includes an arc-shaped bearing panel, a first rotating rod, a first rotating shaft, a second rotating rod, a second rotating shaft, a supporting cross rod, a moving slider and a telescopic connecting rod, wherein one end of the first rotating rod is connected to the bottom of the arc-shaped bearing panel, the first rotating rod is located at the junction of the first rotating rod and the arc-shaped bearing panel, one end of the second rotating rod is connected to the outer wall of the second rotating rod, the bottom of the second rotating rod is connected to the inside of the first rotating rod, the supporting cross rod is located at the bottom of the arc-shaped bearing panel, the first rotating rod is located between the supporting cross rod and the arc-shaped bearing panel, the moving slider is sleeved on the supporting cross rod, the bottom of the telescopic connecting rod is connected to the outer wall of the moving slider, and the other end of the second rotating rod is connected to the top of the moving slider.

The beneficial effect of adopting the further scheme is that: can stir the luminescent powder piece in the inside most space of this device, make the luminescent powder piece of abrasive disc top can fall into the below of abrasive disc to can avoid some luminescent powder to be detained on the inner wall of device effectively.

As a preferred embodiment, the accommodating device comprises a butt joint limiting ring, an accommodating box main body, supporting legs and a separating ring, the butt joint limiting ring is installed at the top of the accommodating box main body, one ends of the supporting legs are connected to the outer wall of the butt joint limiting ring, and the separating ring is installed on the inner wall of the butt joint limiting ring.

The beneficial effect of adopting the further scheme is that: the arc-shaped bearing panel in the range control device is limited on the butt joint limiting ring by the separating ring, so that the arc-shaped bearing panel is prevented from damaging the accommodating box main body in the rotating process, and the integrity of the inner wall of the accommodating box is kept.

As a preferred embodiment, the bottom of the arc-shaped bearing panel is connected to the top of the separating ring, one side of the arc-shaped bearing panel is connected to the inner wall of the butt-joint limiting ring, the top of the telescopic connecting rod is connected to the top of the installation bearing module, and the central rotating rod is located at the center of the circle of the containing box main body.

The beneficial effect of adopting the further scheme is that: the contact range of the whole grinding device and the luminous powder block is improved.

Compared with the prior art, the invention has the advantages and positive effects that,

1. in the invention, the auxiliary grinding equipment is arranged around the central rotating rod, so that the contact range of the whole grinding device and the luminous powder block is enlarged, and some luminescent powder blocks with larger volume can be pressed from the upper part and the lower part, the two pressures can be finally concentrated in the luminescent powder blocks, thereby accelerating the crushing speed of the powder to achieve the purpose of improving the grinding efficiency, and the auxiliary grinding equipment can be further close to the grinding disc after the larger luminous powder block is crushed into a plurality of small blocks, thereby additionally forming a plurality of small grinding mechanisms above the grinding disc, and the grinding mechanisms can adjust the height and the angle through the movable rotating rods, thereby guarantee that the inside luminous piecemeal of device can keep under the state of constantly moving, can promote the grinding scope of this device, avoid some miniature luminous powder pieces not to obtain abundant grinding.

2. According to the invention, the range control device can drive the auxiliary grinding equipment to move in the horizontal direction in a mode of combined operation of the first rotating rod, the second rotating rod, the first rotating shaft and the second rotating shaft, and simultaneously, the telescopic connecting rod is used for driving the grinding cone to move in the vertical direction of the device, so that the luminous powder blocks can be stirred in most of the space in the device, the luminous powder blocks above the grinding disc can fall into the lower part of the grinding disc, and some luminous powder can be effectively prevented from being retained on the inner wall of the device.

Drawings

FIG. 1 is a perspective view of a device for preparing photoluminescent powder according to the present invention;

FIG. 2 is a schematic view of a grinding apparatus of a device for preparing photoluminescent powder according to the present invention;

FIG. 3 is a schematic structural diagram of an auxiliary grinding apparatus in a grinding apparatus of a device for preparing photoluminescent powder according to the present invention;

FIG. 4 is a schematic view of a connection structure between a polishing apparatus and a polishing apparatus of a device for preparing photoluminescent powder according to the present invention;

FIG. 5 is a schematic structural view of a rebound structure and a part of auxiliary grinding equipment of a photoluminescent powder preparation apparatus provided in the present invention;

FIG. 6 is an enlarged view of the portion A of FIG. 2 according to the present invention;

fig. 7 is a schematic structural view of a containing device of a device for preparing photoluminescent powder according to the present invention.

Illustration of the drawings:

1. a grinding device; 2. a containment device;

11. mounting a support rod; 12. a drive motor; 13. a central rotating rod; 14. auxiliary grinding equipment; 15. a range control device;

141. installing a bearing module; 142. pressing and grinding the cone; 143. a movable rotating rod; 144. separating the swivel; 145. a route limiting via; 146. a movable slide bar; 147. a helical cutting blade; 148. a docking module; 149. a rebound framework;

1491. a housing case; 1492. a torsion spring; 1493. supporting and jacking a fixture block;

151. an arcuate load bearing panel; 152. a first rotating lever; 153. a first rotating shaft; 154. a second rotating rod; 155. a second rotating shaft; 156. a support rail; 157. moving the slide block; 158. a telescopic connecting rod;

21. butting a limiting ring; 22. an accommodating box main body; 23. supporting legs; 24. separating the rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 and 2, the present invention provides a technical solution: the utility model provides a photoluminescence powder preparation facilities, including grinder 1 and accommodate device 2, the inside at accommodate device 2 is connected to grinder 1's bottom, grinder 1 includes erection bracing pole 11, driving motor 12, center bull stick 13, supplementary grinding device 14 and scope controlling means 15, the one end of erection bracing pole 11 is connected on driving motor 12's outer wall, the one end of center bull stick 13 is connected with driving motor 12, the bottom of center bull stick 13 is provided with the abrasive disc, supplementary grinding device 14 is located around center bull stick 13, the top at supplementary grinding device 14 is connected to the one end of scope controlling means 15, one side of scope controlling means 15 is connected on accommodate device 2's inner wall.

In this embodiment, the mounting support rod 11 fixes the driving motor 12 inside the grinding device 1, and is connected with the grinding disc through the central rotating rod 13, the central rotating rod 13 is used to determine the rotation center of the whole grinding device 1, when in use, the driving motor 12 drives the grinding disc to rotate through the central rotating rod 13, so as to grind the luminescent powder inside the device, and the range control device 15 drives the auxiliary grinding device 14 to stir inside the device and above the grinding disc during grinding, so as to push the luminescent powder to below the grinding disc.

Example 2

As shown in fig. 2, 3, 4 and 5, the auxiliary grinding device 14 includes a mounting and bearing module 141, a pressing and grinding cone 142 is disposed at the bottom of the mounting and bearing module 141, a motor is disposed inside the mounting and bearing module 141, a crushing gap is disposed on the outer wall of the pressing and grinding cone 142, movable rotating rods 143 are disposed on both sides of the mounting and bearing module 141, the other ends of the movable rotating rods 143 are connected to the outer wall of the central rotating rod 13, a separation rotating ring 144 is disposed at the joint of the movable rotating rods 143 and the central rotating rod 13, the inner wall of the separation rotating ring 144 is connected to the central rotating rod 13, a path limiting through hole 145 is disposed inside the movable rotating rods 143, a movable sliding rod 146 is disposed inside the path limiting through hole 145, a spiral cutting blade 147 is mounted on the outer wall of the movable sliding rod 146, docking modules 148 are disposed at both ends of the movable sliding rod 146, and the terminal of the movable sliding rod 146 is connected to the terminal of the mounting and bearing module 141, the outer wall of the movable rotating rod 143 is provided with a resilient framework 149, the resilient framework 149 is located at the junction of the movable rotating rod 143 and the mounting and carrying module 141, the resilient framework 149 comprises a housing casing 1491, a torsion spring 1492 is arranged inside the housing casing 1491, the other end of the torsion spring 1492 is provided with an ejecting fixture block 1493, and the ejecting fixture block 1493 and the docking module 148 are located on the same side of the movable rotating rod 143.

In this embodiment, when the auxiliary grinding device 14 operates, the mounting bearing module 141 drives the pressing grinding cone 142 and the movable sliding rod 146 to rotate, the grinding notch and the spiral cutting blade 147 are utilized to crush the powder lump into a powder lump with a smaller volume, the movable rotating rod 143 rotates around the separating rotating ring 144 during grinding and crushing, the abutting modules 148 at the two ends of the movable sliding rod 146 move along the path limiting through hole 145 formed in the movable rotating rod 143 during rotation of the movable rotating rod 146 to process the powder lump between the pressing grinding cone 142 and the central rotating rod 13, when the movable rotating rod 143 is in an inclined state, the movable sliding rod 146 is located near the separating rotating ring 144, when the movable rotating rod 143 is in an inclined state, the movable sliding rod 146 moves to the vicinity of the mounting bearing module 141 and contacts with the supporting fixture 1493 on the resilient framework 149, and at this time, the torsion spring 1492 located inside the housing 1491 continuously abuts against the abutting fixture 148 through the supporting fixture 1493 Rebound upwards, make activity slide bar 146 keep under the state of constantly moving in activity bull stick 143, can promote grinding crushing effect effectively, and can suppress some great luminous powder pieces of volume from upper and lower two with the abrasive disc of bottom when activity bull stick 143 changes the decurrent state, two places pressure can finally concentrate in the inside of luminous powder piece, thereby accelerate its crushing speed and reach the mesh of promotion grinding powder efficiency, and supplementary grinding device 14 can be further close to the abrasive disc after breaking into a plurality of less piecemeals of volume with great luminous powder piece, thereby additionally formed a plurality of miniature grinding mechanism in the top of abrasive disc, can promote the grinding scope of this device, avoid some miniature luminous powder pieces not to obtain abundant grinding.

Example 3

As shown in fig. 2 and 6, the range control device 15 includes an arc-shaped bearing panel 151, a first rotating lever 152, a first rotating shaft 153, a second rotating lever 154, second pivot 155, support horizontal pole 156, remove slider 157 and flexible connecting rod 158, the bottom at arc load-bearing panel 151 is connected to the one end of first bull stick 152, first pivot 153 is located the handing-over department of first bull stick 152 and arc load-bearing panel 151, the one end of second bull stick 154 is connected on the outer wall of second pivot 155, the inside at first bull stick 152 is connected to the bottom of second pivot 155, support horizontal pole 156 is located the bottom of arc load-bearing panel 151, first bull stick 152 is located between support horizontal pole 156 and the arc load-bearing panel 151, remove slider 157 cup joints on support horizontal pole 156, the bottom of flexible connecting rod 158 is connected on the outer wall of removing slider 157, the other end of second pivot 155 is connected at the top of removing slider 157.

In this embodiment, the first rotating rod 152 rotates out from the arc-shaped bearing panel 151 around the first rotating shaft 153, and in the process of rotating out, the second rotating rod 154 is pushed to rotate around the second rotating shaft 155, so as to push the moving slider 157 on the supporting cross bar 156 forward, and the moving slider 157 is connected with the mounting bearing module 141 through the telescopic connecting rod 158, so as to drive the auxiliary grinding device 14 to move in the horizontal direction, and in the process of moving, the length of the telescopic connecting rod 158 changes, so as to push the auxiliary grinding device 14 downward, so as to change the state of the movable rotating rod 143, and the constant rotation of the first rotating rod 152 can constantly drive the movable rotating rod 143 and the telescopic connecting rod 158 to change the state, so as to stir the luminescent powder lumps in most of the space inside the device, so that the luminescent powder lumps above the grinding disc can fall below the grinding disc, and can effectively avoid some luminescent powder from being retained on the inner wall of the device.

Example 4

As shown in fig. 1 and 7, the accommodating device 2 includes a docking limiting ring 21, an accommodating box main body 22, supporting legs 23 and a separating ring 24, the docking limiting ring 21 is installed at the top of the accommodating box main body 22, one ends of the supporting legs 23 are connected to the outer wall of the docking limiting ring 21, the separating ring 24 is installed on the inner wall of the docking limiting ring 21, the bottom of the arc-shaped bearing panel 151 is connected to the top of the separating ring 24, one side of the arc-shaped bearing panel 151 is connected to the inner wall of the docking limiting ring 21, the top of the telescopic connecting rod 158 is connected to the top of the mounting bearing module 141, and the central rotating rod 13 is located at the center of the accommodating box main body 22.

In this embodiment, the docking limiting ring 21 is used for docking the grinding device 1, and the arc-shaped bearing panel 151 in the range control device 15 is limited on the docking limiting ring 21 by the separating ring 24 on the inner wall, so as to avoid damaging the accommodating box main body 22 during the rotation process, thereby maintaining the integrity of the inner wall.

The working principle is as follows:

as shown in fig. 1, 2, 3, 4, 5, 6 and 7, the docking limiting ring 21 is used for docking the grinding apparatus 1, and the arc-shaped bearing panel 151 of the range control device 15 is limited on the docking limiting ring 21 by the separating ring 24 on the inner wall thereof, so as to prevent the arc-shaped bearing panel 151 from being damaged to the accommodating box main body 22 during the rotation process, so as to maintain the integrity of the inner wall, the first rotating rod 152 rotates out from the arc-shaped bearing panel 151 around the first rotating shaft 153, and pushes the second rotating rod 154 to rotate around the second rotating shaft 155 during the rotation process, so as to push the moving slider 157 on the supporting cross rod 156 forward, and the moving slider 157 is connected with the mounting bearing module 141 through the telescopic connecting rod 158, so that the auxiliary grinding device 14 can be driven to move in the horizontal direction, and the length of the telescopic connecting rod 158 changes during the movement, therefore, the auxiliary grinding device 14 is pushed downwards to change the state of the movable rotating rod 143, the first rotating rod 152 continuously rotates to continuously drive the movable rotating rod 143 and the telescopic connecting rod 158 to change the state, when the auxiliary grinding device 14 operates, the bearing module 141 is firstly installed to drive the pressing grinding cone 142 and the movable sliding rod 146 to rotate, the luminescent powder block is crushed into powder blocks with smaller volume by the crushing notch and the spiral cutting blade 147, the movable rotating rod 143 rotates around the separating rotating ring 144 during grinding and crushing, the butt-joint modules 148 at the two ends of the movable sliding rod 146 move along the route limiting through hole 145 formed in the movable rotating rod 143 during rotation of the auxiliary grinding device to process the luminescent powder block between the pressing grinding cone 142 and the central rotating rod 13, when the movable rotating rod 143 is in an oblique upward state, the movable sliding rod 146 is located near the separating rotating ring 144, when the movable rotating rod 143 is in an inclined downward state, the movable sliding rod 146 moves to the vicinity of the mounting and carrying module 141 and contacts with the propping fixture block 1493 of the rebounding framework 149, at this time, the torsion spring 1492 located inside the accommodating housing 1491 rebounds the butting module 148 upward through the propping fixture block 1493, so that the movable sliding rod 146 is kept in a continuously moving state inside the movable rotating rod 143, the grinding and crushing effects can be effectively improved, and when the movable rotating rod 143 is changed into an inclined downward state, the movable rotating rod 143 and the grinding disc at the bottom can press some luminescent powder lumps with larger volumes from the upper part and the lower part, and the two pressures can be finally concentrated inside the luminescent powder lumps.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims (7)

1. The utility model provides a photoluminescence powder preparation facilities, includes grinder (1) and accommodate device (2), the inside at accommodate device (2) is connected to the bottom of grinder (1), its characterized in that: grinder (1) is including erection bracing pole (11), driving motor (12), central bull stick (13), supplementary grinding device (14) and scope controlling means (15), the one end of erection bracing pole (11) is connected on the outer wall of driving motor (12), the one end of central bull stick (13) is connected with driving motor (12), the bottom of central bull stick (13) is provided with the abrasive disc, supplementary grinding device (14) are located around central bull stick (13), the top at supplementary grinding device (14) is connected to the one end of scope controlling means (15), one side of scope controlling means (15) is connected on the inner wall of accommodate device (2).

2. The apparatus for preparing photoluminescent powder according to claim 1, wherein: supplementary grinding equipment (14) bear module (141) including the installation, the bottom that the installation bore module (141) is provided with suppression grinding cone (142), the inside that the module (141) was born in the installation is provided with the motor, broken breach has been seted up on the outer wall of suppression grinding cone (142), the both sides that the module (141) was born in the installation all are provided with movable bull stick (143), the other end of activity bull stick (143) is connected on the outer wall of central bull stick (13), activity bull stick (143) and handing-over department of central bull stick (13) are provided with separation change (144), the inner wall of separation change (144) is connected with central bull stick (13).

3. The apparatus for preparing photoluminescent powder according to claim 2, wherein: route restriction through-hole (145) have been seted up to the inside of activity bull stick (143), the inside of route restriction through-hole (145) is provided with movable slide bar (146), install spiral cutting blade (147) on the outer wall of movable slide bar (146), the both ends of activity slide bar (146) are provided with butt joint module (148), the terminal of activity slide bar (146) is connected with the terminal of installing and bearing module (141), install resilience framework (149) on the outer wall of activity bull stick (143), resilience framework (149) are located the handing-over department that activity bull stick (143) and installation bear module (141).

4. The apparatus for preparing photoluminescent powder according to claim 3, wherein: the resilience framework (149) comprises a containing shell (1491), a torsion spring (1492) is arranged in the containing shell (1491), an ejection clamping block (1493) is arranged at the other end of the torsion spring (1492), and the ejection clamping block (1493) and the butt joint module (148) are located on the same side of the movable rotating rod (143).

5. The apparatus for preparing photoluminescent powder according to claim 1, wherein: the range control device (15) comprises an arc-shaped bearing panel (151), a first rotating rod (152), a first rotating shaft (153), a second rotating rod (154), a second rotating shaft (155), a supporting cross rod (156), a movable sliding block (157) and a telescopic connecting rod (158), wherein one end of the first rotating rod (152) is connected to the bottom of the arc-shaped bearing panel (151), the first rotating shaft (153) is located at the joint of the first rotating rod (152) and the arc-shaped bearing panel (151), one end of the second rotating rod (154) is connected to the outer wall of the second rotating shaft (155), the bottom of the second rotating shaft (155) is connected to the inside of the first rotating rod (152), the supporting cross rod (156) is located at the bottom of the arc-shaped bearing panel (151), the first rotating rod (152) is located between the supporting cross rod (156) and the arc-shaped bearing panel (151), the movable sliding block (157) is sleeved on the supporting cross rod (156), the bottom of the telescopic connecting rod (158) is connected to the outer wall of the movable sliding block (157), and the other end of the second rotating shaft (155) is connected to the top of the movable sliding block (157).

6. The apparatus for preparing photoluminescent powder according to claim 1, wherein: accommodate device (2) including butt joint limit circle (21), accommodate case main part (22), supporting legs (23) and separate ring (24), butt joint limit circle (21) are installed at the top of accommodating case main part (22), the one end of supporting legs (23) is connected on the outer wall of butt joint limit circle (21), separate ring (24) and install on the inner wall of butt joint limit circle (21).

7. The apparatus for preparing photoluminescent powder according to claim 5, wherein: the bottom of arc load-bearing panel (151) is connected at the top of separating ring (24), one side of arc load-bearing panel (151) is connected on the inner wall of butt joint confinement ring (21), the top of telescopic connecting rod (158) is connected at the top of installation load-bearing module (141), center bull stick (13) are located the centre of a circle department that holds case main part (22).

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