Grinding device for nano material preparation

Abstract

The invention relates to the technical field of grinding devices, and discloses a grinding device for nano material preparation, the grinding device comprises a grinding box, a feeding conical cylinder mounted at the top of the grinding box, a supporting rack mounted at the bottom of the grinding box and a discharging valve pipe, and the inner side of the top of the grinding box and the inner side of the bottom of the grinding box are sleeved with grinding assemblies. A transition space capable of being opened and closed in a reciprocating mode is formed by the arranged composite transition material barrel, the first adjusting conical disc, the second adjusting conical disc and the two-way output assembly, and then after the transition space is combined with the two grinding assemblies for use, powder raw materials obtained after primary grinding can be sealed and temporarily stored; after further operation is carried out in cooperation with an air blowing pump, an air guide valve pipe, a winnowing filter screen and a flow guide pipe, winnowing filtering is carried out, and therefore qualified powder raw materials are collected in advance through an arranged material collecting component, the work load of subsequent secondary grinding is reduced, meanwhile, the relative forming work amount is reduced, and the work efficiency is improved. And the working time is relatively shortened.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a grinding device for preparing nano materials. Background Art

[0002] Nanoscale structural materials, referred to as nanomaterials for short, refer to materials whose structural units have a size between 1 nanometer and 100 nanometers. Since their size is close to the coherence length of electrons, their properties change greatly due to the self-organization brought about by strong coherence. In addition, their scale is close to the wavelength of light. In addition, they have the special effect of a large surface. Therefore, their properties, such as melting point, magnetism, optics, thermal conductivity, electrical conductivity, etc., are often different from the properties of the substance in its overall state. Therefore, they can be widely used.

[0003] At present, in the preparation process of nanomaterials, the grinding process is one of the indispensable processes for the preliminary raw material processing, and with the continuous optimization of relevant technologies, the prior art has also disclosed multi-stage grinding devices different from the traditional ones, such as the patent document with application number 202021575277.4, which discloses "a fully automatic grinding device for preparing nanomaterials, comprising a primary grinding box, a secondary grinding box and a tertiary grinding box, wherein the secondary grinding box is located below the primary grinding box, and the tertiary grinding box is located below the secondary grinding box". After implementation, "the servo motor drives the lower grinding disc to rotate at high speed, and the material placed between the lower grinding disc and the upper grinding disc is ground. When the lower grinding disc rotates, centrifugal force is generated, and the material continuously moves closer to the outside. The qualified ground material will be thrown out through the gap between the lower grinding disc and the upper grinding disc. Unqualified materials continue to be ground until they are qualified. The qualified materials ground by the first-level grinding box enter the second-level grinding box through the feed plate. The gap between the lower grinding plate and the upper grinding plate in the second-level grinding box is smaller than the gap between the lower grinding plate and the upper grinding plate in the first-level grinding box, so the grinding effect is better. Similarly, the grinding effect of the third-level grinding box is greater than that of the second-level grinding box. The grinding is more uniform and the grinding quality is better through progressive grinding. However, in the actual grinding process, the material is not crushed uniformly, and some powdered raw materials will reach the expected processing target. However, for this part of the raw material, the above-mentioned prior art solution is still to make it enter the next level of grinding. Although the processing target can be achieved in the end, the overall processing technology has a lot of useless work, which leads to a long processing time and a large amount of wear on the grinding structures at all levels, which is not conducive to the optimization of the overall grinding process. Summary of the invention

[0004] The present invention provides a grinding device for preparing nano materials, which solves the problems raised by the above-mentioned prior art.

[0005] The present invention provides the following technical solutions: a grinding device for preparing nanomaterials, comprising a grinding box, a feeding cone installed on the top of the grinding box, a supporting frame installed on the bottom of the grinding box, and a discharge valve pipe, wherein the inner side of the top and the inner side of the bottom of the grinding box are both equipped with grinding components, and the grinding accuracy of the two grinding components increases gradually from top to bottom, the inner side of the middle of the grinding box is equipped with a composite transition barrel located between the two grinding components, the interior of the composite transition barrel is equipped with a first adjusting cone disk, a second adjusting cone disk, and a two-way output component, the two output ends inside the two-way output component are respectively connected to the first adjusting cone disk and the second adjusting cone disk in transmission, and the first adjusting cone disk and the second adjusting cone disk can respectively seal the middle space and the bottom space of the composite transition barrel under the transmission of the two-way output component; An air pump and an air guide valve pipe are arranged on the top of the grinding box, the two ends of the air guide valve pipe are respectively connected to the output end of the air pump and are sleeved on the inner side of the middle part of the composite transition barrel, one side of the middle part of the composite transition barrel is sleeved with a guide pipe, and a wind selection filter is nested in a port at one end of the guide pipe, the other end of the guide pipe passes through the grinding box and extends to the outside of the grinding box, the other end of the guide pipe is sleeved with a gathering component, and an air outlet is opened on the gathering component.

[0006] Preferably, the two grinding assemblies each include a fixed annular grinding disc, a movable grinding disc, and a motor output assembly, the composite transition barrel is fixedly sleeved inside the grinding box, the two fixed annular grinding discs are respectively fixedly mounted on the inner wall of the top of the grinding box and on the surface of the bottom of the composite transition barrel, the fixed annular grinding disc is aligned with the corresponding movable grinding disc to form a grinding gap.

[0007] Preferably, the two motor output assemblies are composed of an outer support box and a transmission motor, the output end of the transmission motor passes through the corresponding outer support box and is transmission-connected to the middle of the corresponding moving grinding disc, and a support rod is fixedly connected between the surface of the outer support box and the inner wall of the grinding box.

[0008] The two-way output component includes a supporting sleeve, and the interior of the supporting sleeve is provided with a first electric push rod and a second electric push rod with opposite output directions, and the output end of the first electric push rod and the output end of the second electric push rod respectively penetrate the top structure of the supporting sleeve and the bottom structure of the two-way output component and are then respectively transmission-connected to the middle part of the second adjusting cone disk and the middle part of the first adjusting cone disk, thereby realizing automated operation, and an auxiliary rod is fixedly connected between the surface of the supporting sleeve and the inner wall of the composite transition barrel to ensure stability in subsequent use.

[0009] Preferably, sealing rings are provided at the output ends of the two first electric push rods and the fittings of the support sleeve to enhance the connection sealing effect between the two, and the second adjusting cone disk can be clamped and sealed with the inner wall of the middle part of the composite transition barrel, and the first adjusting cone disk can be clamped and sealed with the inner wall of the bottom of the composite transition barrel.

[0010] The material collecting component comprises a first internal threaded sleeve, a filter mesh bag and a second internal threaded sleeve, the open end of the filter mesh bag is fixedly sleeved on the outside of one end of the first internal threaded sleeve, the surface of the other end of the guide tube is provided with an external thread, the other end of the first internal threaded sleeve can be threadedly connected to the other end surface of the guide tube, the surface of the first internal threaded sleeve is also provided with an external thread, the second internal threaded sleeve is completely covered with the filter mesh bag and is threadedly connected to the surface of the first internal threaded sleeve, the material collecting component can cooperate with the guide tube, and then collect the powder material screened out by the combined operation of the air pump, the air guide valve tube and the air separation filter.

[0011] Preferably, one end surface of the second internally threaded sleeve is fittedly connected to a limiting sleeve fixedly sleeved on the surface of the other end of the guide tube, thereby limiting the connection length of the second internally threaded sleeve and the guide tube, and the air outlet is opened on the top of the other end of the second internally threaded sleeve.

[0012] Preferably, a clearing assembly is provided on the outer side of the air selection filter, and the clearing assembly includes a transition air cylinder, a first connecting air pipe, a second connecting air pipe, and a transmission shaft, one end of the first connecting air pipe is fixedly sleeved on the top of the transition air cylinder, one end of the second connecting air pipe is fixedly sleeved on the bottom of the transition air cylinder, one end of the transmission shaft is sleeved on the inner side of the middle part of the transition air cylinder through a bearing, and a fan blade movably sleeved on the inside of the transition air cylinder is fixedly connected to the surface of one end of the transmission shaft, and a scraper that can be fitted and connected to the surface of one side of the air selection filter is fixedly connected to the surface of the other end of the transmission shaft, and the clearing assembly utilizes the airflow output by the aggregate component for secondary transmission, and then assists in cleaning the filtering working surface of the air selection filter, thereby ensuring the long-term and efficient filtering effect of the air selection filter.

[0013] Preferably, the number of the fan blades and the number of the scrapers are the same and are not less than two, respectively ensuring the transmission effect and the scraping and cleaning effect; the other end of the first connecting air pipe and the other end of the second connecting air pipe both penetrate the side wall of one side of the grinding box and extend to the outside of the grinding box; the end of the other end of the first connecting air pipe is stuck inside the air outlet.

[0014] Preferably, an internal thread limit sleeve is sleeved on the outer side of the other end of the second internal thread sleeve and is clamped to the other end of the first connecting air pipe. An external thread is provided on the surface of the other end of the second internal thread sleeve. The interior of the internal thread limit sleeve can be threadedly connected to the other end surface of the second internal thread sleeve. The internal thread limit sleeve cooperates with the locking of the second internal thread sleeve to improve the connection strength between the first connecting air pipe and the air outlet sleeve.

[0015] The present invention has the following beneficial effects: 1. The present invention forms a transition space that can be reciprocated and opened by providing a composite transition barrel, a first adjusting cone disk, a second adjusting cone disk and a bidirectional output assembly. After being used in combination with two grinding assemblies, the powder raw materials after primary grinding can be sealed and temporarily stored, and then after further operation with the provided air pump, air guide valve pipe, air selection filter net and guide pipe, air selection and filtration are performed. Thus, qualified powder raw materials are pre-collected by using the provided collection components, which reduces the workload of subsequent secondary grinding and also forms a use effect of relatively reducing the workload and shortening the operation time, thereby fully solving the problems existing in the prior art.

[0016] 2. The present invention further combines the clearing component with the air separation filter, the aggregate component, and the guide pipe. The kinetic energy of the air separation airflow discharged by the aggregate component can be used to make the fan blades inside the clearing component drive the transmission shaft to rotate. At the same time, the scraper rotates synchronously under the drive of the transmission shaft to synchronously scrape and clean the filtering working surface of the air separation filter, thereby maintaining the long-term and efficient filtering effect of the air separation filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial cross-sectional schematic diagram of the structure of the present invention; Figure 2 It is a front view schematic diagram of the structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the bidirectional output component of the structure of the present invention; Figure 4 It is a cross-sectional schematic diagram of the structural aggregate component of the present invention; Figure 5 It is an enlarged schematic diagram of the structural composite transition barrel of the present invention; Figure 6 It is a partial cross-sectional schematic diagram of the structural blockage clearing component of the present invention.

[0018] In the figure: 1. grinding box; 2. feeding cone; 3. supporting frame; 4. discharge valve pipe; 5. grinding assembly; 51. fixed annular grinding disc; 52. moving grinding disc; 53. motor output assembly; 6. composite transition barrel; 7. first adjusting cone disc; 8. second adjusting cone disc; 9. two-way output assembly; 91. supporting sleeve; 92. first electric push rod; 93. second electric push rod; 10. guide pipe; 11. gathering part; 111. first internal thread sleeve; 112. filter bag; 113. second internal thread sleeve; 12. air pump; 13. air guide valve pipe; 14. clearing assembly; 141. transition air cylinder; 142. first connecting air pipe; 143. second connecting air pipe; 144. transmission shaft; 145. fan blade; 146. scraper; 15. internal thread limit sleeve; 16. air selection filter. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-6 , a grinding device for preparing nanomaterials, comprising a grinding box 1, a feeding cone 2 installed on the top of the grinding box 1, a supporting frame 3 installed on the bottom of the grinding box 1, and a discharge valve pipe 4, the inner side of the top and the inner side of the bottom of the grinding box 1 are both equipped with grinding components 5, and the grinding accuracy of the two grinding components 5 gradually increases from top to bottom, the inner side of the middle part of the grinding box 1 is equipped with a composite transition barrel 6 located between the two grinding components 5, the two grinding components 5 each include a fixed annular grinding disc 51, a moving grinding disc 52, and a motor output component 53, the composite transition barrel 6 is fixedly sleeved inside the grinding box 1, the two fixed annular grinding discs 51 are respectively fixedly mounted on the inner wall of the top of the grinding box 1 and fixedly mounted on the surface of the bottom of the composite transition barrel 6, the fixed annular grinding disc 51 is aligned with the corresponding moving grinding disc 52 to form a grinding gap, the two motor output components 53 are both composed of an outer support box and a transmission motor, the output end of the transmission motor passes through the corresponding outer support box and is transmission-connected to the middle of the corresponding moving grinding disc 52, and a support rod is fixedly connected between the surface of the outer support box and the inner wall of the grinding box 1; The composite transition barrel 6 is internally mounted with a first adjusting cone disc 7, a second adjusting cone disc 8, and a bidirectional output assembly 9. The two output ends of the bidirectional output assembly 9 are respectively connected to the first adjusting cone disc 7 and the second adjusting cone disc 8 by transmission. The first adjusting cone disc 7 and the second adjusting cone disc 8 can respectively seal the middle space of the composite transition barrel 6 and the bottom space of the composite transition barrel 6 under the transmission of the bidirectional output assembly 9. The bidirectional output assembly 9 comprises a support sleeve 91, and a first electric push rod 92 and a second electric push rod 93 with opposite output directions are mounted inside the support sleeve 91, and the output end of the first electric push rod 92 and the output end of the second electric push rod 93 respectively penetrate the top structure of the support sleeve 91 and the bottom structure of the bidirectional output assembly 9, and are respectively connected to the middle of the second adjusting cone disk 8 and the middle of the first adjusting cone disk 7 for transmission, thereby realizing automated operation, an auxiliary rod is fixedly connected between the surface of the support sleeve 91 and the inner wall of the composite transition barrel 6 to ensure stability in subsequent use, and sealing rings are provided at the sleeves of the output ends of the two first electric push rods 92 and the support sleeve 91 to improve the connection and sealing effect of the two, and the second adjusting cone disk 8 can be clamped and sealed with the inner wall of the middle of the composite transition barrel 6, and the first adjusting cone disk 7 can be clamped and sealed with the inner wall of the bottom of the composite transition barrel 6; An air pump 12 and an air guide valve pipe 13 are provided on the top of the grinding box 1. The two ends of the air guide valve pipe 13 are respectively connected to the output end of the air pump 12 and are sleeved on the inner side of the middle of the composite transition barrel 6. A guide pipe 10 is sleeved on one side of the middle of the composite transition barrel 6, and a wind selection filter 16 is nested in a port of one end of the guide pipe 10. The other end of the guide pipe 10 passes through the grinding box 1 and extends to the outside of the grinding box 1. A material collecting component 11 is sleeved on the end of the other end of the guide pipe 10, and an air outlet is opened on the material collecting component 11. The material collecting component 11 includes a first internally threaded sleeve 111, a filter mesh bag 112 and a second internally threaded sleeve 113. The open end of the filter mesh bag 112 is fixedly sleeved on the outside of one end of the first internally threaded sleeve 111. The surface of the other end of the guide tube 10 is provided with an external thread. The other end of the first internally threaded sleeve 111 can be threadedly connected with the other end surface of the guide tube 10. The surface of the first internally threaded sleeve 111 is also provided with an external thread. The second internally threaded sleeve 113 is completely fitted on the filter mesh bag 112 and is connected to the first internally threaded sleeve 113. The surface of the threaded sleeve 111 is threadedly connected, and the collecting component 11 can cooperate with the guide pipe 10 to collect the powder material screened by the combined operation of the air pump 12, the air guide valve pipe 13, and the air selection filter 16. The end surface of one end of the second internally threaded sleeve 113 is fitted with a limit sleeve fixedly sleeved on the surface of the other end of the guide pipe 10, thereby limiting the connection length between the second internally threaded sleeve 113 and the guide pipe 10, and the air outlet is opened on the top of the other end of the second internally threaded sleeve 113; A clearing assembly 14 is provided on the outer side of the air selection filter 16. The clearing assembly 14 includes a transition air cylinder 141, a first connecting air pipe 142, a second connecting air pipe 143, and a transmission shaft 144. One end of the first connecting air pipe 142 is fixedly sleeved with the top of the transition air cylinder 141, and one end of the second connecting air pipe 143 is fixedly sleeved with the bottom of the transition air cylinder 141. One end of the transmission shaft 144 is sleeved on the inner side of the middle part of the transition air cylinder 141 through a bearing, and a fan blade 145 movably sleeved inside the transition air cylinder 141 is fixedly connected to the surface of one end of the transmission shaft 144, and a scraper 146 capable of being fitted and connected to the surface of one side of the air selection filter 16 is fixedly connected to the surface of the other end of the transmission shaft 144. The clearing assembly 14 utilizes the airflow output by the aggregate component 11 for secondary transmission, and then performs auxiliary cleaning on the filtering working surface of the air selection filter 16 to ensure the long-term high-efficiency filtering effect of the air selection filter 16. The number of fan blades 145 and the number of scrapers 146 are the same and are not less than two, respectively ensuring the transmission effect and the scraping and cleaning effect. The other end of the first connecting air pipe 142 and the other end of the second connecting air pipe 143 both penetrate the side wall of one side of the grinding box 1 and extend to the outside of the grinding box 1. The end of the other end of the first connecting air pipe 142 is clamped inside the air outlet. The outside of the other end of the second internally threaded sleeve 113 is provided with an internally threaded limiting sleeve 15 that is clamped to the other end of the first connecting air pipe 142. The surface of the other end of the second internally threaded sleeve 113 is provided with an external thread. The interior of the internally threaded limiting sleeve 15 can be threadedly connected to the other end surface of the second internally threaded sleeve 113. The internally threaded limiting sleeve 15 cooperates with the locking of the second internally threaded sleeve 113 to improve the connection strength between the first connecting air pipe 142 and the air outlet.

[0021] Working principle: when in use, start the second electric push rod 93, so that the output end of the second electric push rod 93 drives the first adjusting cone 7 to move down to the inner space at the bottom of the composite transition barrel 6, and the bottom space of the composite transition barrel 6 is closed, and the first electric push rod 92 is in an open state at this time, and then a certain amount of raw materials to be processed are put into the fixed annular grinding disc 51 and the movable grinding disc 52 in the top of the grinding box 1 through the feeding cone 2, and then, the transmission motor in the motor output assembly 53 corresponding to the movable grinding disc 52 is started, so that the transmission motor drives the movable grinding disc 52 to rotate cyclically, and cooperates with the discharge valve pipe 4 to grind the raw materials between the discharge valve pipe 4 and the movable grinding disc 52, and the ground raw materials are centrifugally thrown out by the movable grinding disc 52 and concentrated on the inner side of the bottom of the composite transition barrel 6 under the guidance of the composite transition barrel 6; After the raw material grinding between the fixed annular grinding disc 51 and the movable grinding disc 52 on the top of the grinding box 1 is completed, the first electric push rod 92 is closed, so that the first electric push rod 92 drives the second adjusting cone disc 8 to move downward, and the middle space of the composite transition barrel 6 is sealed. Then, the air pump 12 is started, and the output end of the air pump 12 delivers air to the inner side of the middle of the composite transition barrel 6 through the air guide valve pipe 13, so that the powder raw material inside the composite transition barrel 6 flows with the air flow, and the powder raw material of the qualified size can be filtered by the air selection filter 16 into the interior of the guide pipe 10, and then pass through the filter bag 112. The air is filtered and temporarily stored, and the air is discharged into the first connecting air pipe 142 through the air outlet in the second internal threaded sleeve 113, and then enters the interior of the transition air cylinder 141 to impact the transmission shaft 144 and the fan blades 145, so that the fan blades 145 drive the transmission shaft 144 to rotate. At the same time, the scraper 146 rotates synchronously under the drive of the transmission shaft 144, and the filtering working surface of the air selection filter 16 is synchronously scraped and cleaned, so as to maintain the long-term and efficient filtering effect of the air selection filter 16. Subsequently, the raw materials that do not need to be ground again are pre-collected by reciprocating, so as to reduce the subsequent grinding and compounding and shorten the processing time. As for the raw materials that are filtered out and still need to be ground again, the second electric push rod 93 is closed, so that the second electric push rod 93 drives the first adjusting cone 7 to move upward to make way for the bottom space of the composite transition barrel 6, and then the powder raw materials enter between the fixed annular grinding disc 51 and the movable grinding disc 52 at the bottom of the grinding box 1, and then the transmission motor in the motor output assembly 53 corresponding to the movable grinding disc 52 is started, so that the transmission motor drives the movable grinding disc 52 to rotate cyclically, and cooperates with the discharge valve pipe 4 to grind the raw materials between the discharge valve pipe 4 and the movable grinding disc 52, and the ground raw materials are centrifugally thrown out by the movable grinding disc 52 and concentrated under the guidance of the bottom structure of the grinding box 1, and finally collected through the discharge valve pipe 4; After the start of the secondary grinding, the second electric push rod 93 is started, so that the output end of the second electric push rod 93 drives the first adjusting cone 7 to move down to the inner space at the bottom of the composite transition barrel 6, and the bottom space of the composite transition barrel 6 is closed. The first electric push rod 92 is started, so that the first electric push rod 92 drives the second adjusting cone 8 to move up, and the middle space of the composite transition barrel 6 is made free. Then, the primary grinding is carried out synchronously according to the initial steps. As for the powder raw materials collected in the collecting component 11, in the gap when not collecting, the first internally threaded sleeve 111 is twisted to separate the first internally threaded sleeve 111 from the guide tube 10, and then the raw materials collected in the filter mesh bag 112 are poured out.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present invention, the fill pattern is only for distinguishing layers, without any other limitation.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for preparing nanomaterials, comprising a grinding box (1), a feeding cone (2) mounted on the top of the grinding box (1), a supporting frame (3) and a discharge valve pipe (4) mounted on the bottom of the grinding box (1), characterized in that: The inner sides of the top and bottom of the grinding box (1) are both provided with grinding assemblies (5), and the grinding precision of the two grinding assemblies (5) increases gradually from top to bottom. The inner side of the middle of the grinding box (1) is provided with a composite transition barrel (6) located between the two grinding assemblies (5), and the interior of the composite transition barrel (6) is provided with a first adjusting cone disk (7), a second adjusting cone disk (8), and a bidirectional output assembly (9), and the two output ends of the bidirectional output assembly (9) are respectively connected to the first adjusting cone disk (7) and the second adjusting cone disk (8) in a transmission manner, and the first adjusting cone disk (7) and the second adjusting cone disk (8) can respectively seal the middle space of the composite transition barrel (6) and the bottom space of the composite transition barrel (6) under the transmission of the bidirectional output assembly (9); An air pump (12) and an air guide valve pipe (13) are arranged on the top of the grinding box (1), and the two ends of the air guide valve pipe (13) are respectively connected to the output end of the air pump (12) and are sleeved on the inner side of the middle part of the composite transition barrel (6). A guide pipe (10) is sleeved on one side of the middle part of the composite transition barrel (6), and a wind selection filter (16) is embedded in a port at one end of the guide pipe (10). The other end of the guide pipe (10) passes through the grinding box (1) and extends to the outside of the grinding box (1). A material collecting component (11) is sleeved on the end of the other end of the guide pipe (10), and an air outlet is provided on the material collecting component (11).

2. A grinding device for preparing nanomaterials according to claim 1, characterized in that: The two grinding assemblies (5) each comprise a fixed annular grinding disc (51), a movable grinding disc (52), and a motor output assembly (53); the composite transition barrel (6) is fixedly sleeved inside the grinding box (1); the two fixed annular grinding discs (51) are respectively fixedly mounted on the inner wall of the top of the grinding box (1) and fixedly mounted on the surface of the bottom of the composite transition barrel (6); the fixed annular grinding disc (51) is aligned with the corresponding movable grinding disc (52) to form a grinding gap.

3. A grinding device for preparing nanomaterials according to claim 2, characterized in that: The two motor output assemblies (53) are composed of an outer support box and a transmission motor. The output end of the transmission motor passes through the corresponding outer support box and is transmission-connected to the middle of the corresponding moving grinding disc (52). A support rod is fixedly connected between the surface of the outer support box and the inner wall of the grinding box (1).

4. The grinding device for preparing nanomaterials according to claim 1, characterized in that: The bidirectional output assembly (9) comprises a support sleeve (91), a first electric push rod (92) and a second electric push rod (93) having opposite output directions are mounted inside the support sleeve (91), and the output end of the first electric push rod (92) and the output end of the second electric push rod (93) respectively penetrate the top structure of the support sleeve (91) and the bottom structure of the bidirectional output assembly (9), the first electric push rod (92) is connected to the middle of the second adjustment cone disk (8), and the second electric push rod (93) is connected to the middle of the first adjustment cone disk (7), and an auxiliary rod is fixedly connected between the surface of the support sleeve (91) and the inner wall of the composite transition barrel (6).

5. The grinding device for preparing nanomaterials according to claim 4, characterized in that: The output ends of the two first electric push rods (92) and the sleeves of the support sleeve (91) are both provided with sealing rings, and the second adjusting cone disc (8) can be clamped and sealed with the inner wall of the middle part of the composite transition barrel (6), and the first adjusting cone disc (7) can be clamped and sealed with the inner wall of the bottom of the composite transition barrel (6).

6. The grinding device for preparing nanomaterials according to claim 1, characterized in that: The material collecting component (11) comprises a first internally threaded sleeve (111), a filter mesh bag (112) and a second internally threaded sleeve (113); the open end of the filter mesh bag (112) is fixedly sleeved on the outside of one end of the first internally threaded sleeve (111); the surface of the other end of the flow guide tube (10) is provided with an external thread; the other end of the first internally threaded sleeve (111) can be threadedly connected to the surface of the other end of the flow guide tube (10); the surface of the first internally threaded sleeve (111) is also provided with an external thread; the second internally threaded sleeve (113) is completely fitted onto the filter mesh bag (112) and is threadedly connected to the surface of the first internally threaded sleeve (111).

7. A grinding device for preparing nanomaterials according to claim 6, characterized in that: One end surface of the second internally threaded sleeve (113) is fittedly connected to a limiting sleeve fixedly sleeved on the surface of the other end of the guide tube (10), and the air outlet is provided on the top of the other end of the second internally threaded sleeve (113).

8. The grinding device for preparing nanomaterials according to claim 7, characterized in that: A clearing assembly (14) is arranged on the outside of the air selection filter (16), and the clearing assembly (14) includes a transition air cylinder (141), a first connecting air pipe (142), a second connecting air pipe (143), and a transmission shaft (144), one end of the first connecting air pipe (142) is fixedly sleeved with the top of the transition air cylinder (141), one end of the second connecting air pipe (143) is fixedly sleeved with the bottom of the transition air cylinder (141), one end of the transmission shaft (144) is sleeved on the inner side of the middle part of the transition air cylinder (141) through a bearing, and a fan blade (145) movably sleeved inside the transition air cylinder (141) is fixedly connected to the surface of one end of the transmission shaft (144), and a scraper (146) capable of being fitted and connected to the surface of one side of the air selection filter (16) is fixedly connected to the surface of the other end of the transmission shaft (144).

9. A grinding device for preparing nanomaterials according to claim 8, characterized in that: The number of the fan blades (145) and the number of the scrapers (146) are the same and are not less than two. The other end of the first connecting air pipe (142) and the other end of the second connecting air pipe (143) both penetrate the side wall of the grinding box (1) and extend to the outside of the grinding box (1). The end of the other end of the first connecting air pipe (142) is stuck inside the air outlet.

10. The grinding device for preparing nanomaterials according to claim 8, characterized in that: An internal threaded limiting sleeve (15) is sleeved on the outer side of the other end of the second internal threaded sleeve (113) and is clamped to the other end of the first connecting air pipe (142). An external thread is provided on the surface of the other end of the second internal threaded sleeve (113). The interior of the internal threaded limiting sleeve (15) can be threadedly connected to the surface of the other end of the second internal threaded sleeve (113).

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