Vacuum tank sealing structure for nano powder production

Abstract

The utility model discloses a vacuum tank sealing structure for nano-powder production, which comprises two groups of support tables which are oppositely arranged, a vacuum tank is arranged above the two groups of support tables, the end part of the vacuum tank is connected with a tank cover through a hinge, a boss is arranged on the end surface of the vacuum tank, a groove matched with the boss is arranged on the inner side wall of the tank cover, and the vacuum tank is arranged in the groove. The sealing structure of the vacuum tank for nano powder production optimizes the sealing structure of the vacuum tank for nano powder production, ensures the sealing environment in the working process of the vacuum tank, improves the sealing performance of the vacuum tank, and improves the sealing performance of the vacuum tank. And the problem that the reject ratio is increased due to nano-particle oxidation caused by air entering is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of nano powder production, and in particular relates to a vacuum tank sealing structure used for nano powder production. Background Art

[0002] Nanopowders refer to materials with at least one dimension in the three-dimensional space at the nanoscale, such as nanometals, ceramics, silicon, carbon, etc. Because of their high surface atomic ratio, they exhibit optical, electrical, magnetic and catalytic properties that macroscopic materials do not have, and are widely used in new energy, semiconductors, petrochemicals, biomedicine, national defense and military fields.

[0003] At present, the methods for producing nano powders mainly include chemical methods (such as electrolysis and hydroxyl thermal decomposition method, water slurry pressurized oxygen reduction method) and physical methods (such as laser method and plasma method). Among them, the plasma method for producing nano powders is to use high-frequency power discharge to generate plasma arc as a heat source to gasify and evaporate the raw materials, and then cool and condense them through a collector to generate nano powders. In the production process, when the raw materials are excited by the plasma gun to form nano particles but have not yet condensed, the nano particles at this time are very easy to oxidize, and it is necessary to ensure the sealing effect of the vacuum tank used in production. The document CN210132057U discloses a gasification vacuum tank for metal nano powder production, which mainly solves the shortcomings of: the existing vacuum tank has low sealing performance and the metal powder is easy to adhere to the inner wall of the equipment. However, it is found in the long-term use process that the vacuum tank only relies on the sealing effect of the locking piece, and the strength is poor. In particular, the heat brought by the working process easily softens the sealing gasket, causing slight leakage between the tank body and the tank cover. In order to optimize this solution, practitioners have designed a vacuum tank sealing structure for nano powder production. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum tank sealing structure for nano powder production in order to solve the problem that the sealing effect between the tank body and the tank cover of the existing nano powder vacuum tank is poor, which easily leads to air entering and oxidation of nano particles, resulting in an increase in the defective rate.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a vacuum tank sealing structure for nano powder production, comprising two groups of support platforms arranged opposite to each other, vacuum tanks are arranged above the two groups of support platforms, tank covers are arranged at the ends of the vacuum tanks through hinges, bosses are arranged on the end faces of the vacuum tanks, grooves matching the bosses are arranged on the inner side walls of the tank covers, anti-slip grooves are arranged on the outer side walls of the tank covers, and a plurality of groups of locking members for strengthening the sealing effect between the vacuum tanks and the tank covers are arranged in the anti-slip grooves.

[0006] Furthermore, the wall of the vacuum tank adopts a double-layer structure.

[0007] Furthermore, reinforcing ribs are arranged on the outer side wall of the tank cover, a handle is arranged on the reinforcing ribs, and two groups of supporting wheels are arranged on the bottom of the tank cover along the opening and closing direction thereof.

[0008] Furthermore, at least two groups of the bosses and the grooves are provided.

[0009] Furthermore, a lead-in groove communicating with the anti-slip groove is provided on the side wall of the tank cover, and the lead-in groove is used for placing the locking member in the anti-slip groove.

[0010] Furthermore, the locking member includes a locking base plate, a guide wheel matching the anti-slip groove is arranged on the side wall of the locking base plate, a threaded rod is penetrated through the locking base plate, a claw is fixedly arranged at the end of the threaded rod, a locking bolt matching the threaded rod is arranged on the threaded rod, an anti-retreat plate is arranged between the locking base plate and the locking bolt, and the cross-section of the anti-retreat plate is arranged in a "V" shape.

[0011] Beneficial effects: The utility model has reasonable design, simple and stable structure, strong practicality, and has the following beneficial effects:

[0012] 1. The coordination of the boss and the groove. After the vacuum tank and the tank cover are sealed, even if there is a leak, it must pass through the two to form the first line of protection. At least two sets of bosses and grooves are set to make the sealing stronger. In addition, a sealing ring can be added between the two to form a more detailed sealing optimization.

[0013] 2. The matching setting of the locking piece and the anti-slip groove can add an appropriate amount of locking piece into the anti-slip groove according to actual needs, so as to ensure the final matching effect of the vacuum tank and the tank cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the end of the vacuum tank of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the can cover of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the locking member of the utility model.

[0018] In the figure: 1-support platform, 2-vacuum tank, 3-tank cover, 4-boss, 5-groove, 6-anti-slip groove, 7-locking piece, 8-reinforcement rib, 9-handle, 10-support wheel, 11-guide groove;

[0019] 701-locking base plate, 702-guide wheel, 703-threaded rod, 704-claw, 705-locking bolt, 706-anti-retraction plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Embodiment 1:

[0022] Combination Figure 1-4 The vacuum tank sealing structure shown in the figure for nano powder production includes two sets of support platforms 1 arranged relatively to each other, the support platforms 1 ensure the stability of the device when placed on a horizontal plane, and can be fixed on the ground more stably later by bolts, a vacuum tank 2 is arranged above the two sets of support platforms 1, the tank wall of the vacuum tank 2 adopts a double-layer structure, the double-layer structure can ensure that the tank wall has higher strength, and will not cause the problem of surface depression during long-term use, a tank cover 3 is arranged at the end of the vacuum tank 2 through a hinge connection, the hinge connection realizes the rotation opening and closing of the tank cover 3, a reinforcing rib 8 is arranged on the outer wall of the tank cover 3 to ensure the strength of the filling cover 3, a handle 9 is arranged on the reinforcing rib 8, the handle 9 can facilitate the opening and closing of the tank cover 3, and two sets of support wheels 10 are arranged at the bottom of the tank cover 3 along its opening and closing direction, and the support wheel 10 can be arranged from the bottom To support the tank cover 3 and prevent the weight of the tank cover 3 from causing hinge damage during long-term use, thereby affecting the normal use of the tank cover 3, a boss 4 is arranged on the end face of the vacuum tank 2, and a groove 5 matching with the boss 4 is arranged on the inner wall of the tank cover 3. After the boss 4 and the groove 5 cooperate, even if the vacuum tank 2 leaks, the first line of protection will be formed between the two. There are at least two groups of bosses 4 and grooves 5 to make the sealing strength higher. In addition, a sealing ring is subsequently formed between the two to form a more detailed sealing optimization. An anti-slip groove 6 is arranged on the outer wall of the tank cover 3, and several groups of locking members 7 for strengthening the sealing effect between the vacuum tank 2 and the tank cover 3 are arranged in the anti-slip groove 6. Such a structure can make the locking member 7 detachable, so that an appropriate amount of locking member 7 can be added to the anti-slip groove 6 according to actual needs, thereby ensuring the final matching effect of the vacuum tank 2 and the tank cover 3.

[0023] In this embodiment, the Figure 1 As shown, an introduction groove 11 is provided on the side wall of the tank cover 3 and is communicated with the anti-slip groove 6. The introduction groove 11 is used to place the locking member 7 in the anti-slip groove 6. This setting method can add an appropriate amount of locking member 7 to the anti-slip groove 6 according to actual needs, thereby ensuring the final matching effect of the vacuum tank 2 and the tank cover 3.

[0024] In this embodiment, the Figure 4The locking member 7 shown includes a locking base plate 701, a guide wheel 702 matching the anti-slip groove 6 is arranged on the side wall of the locking base plate 701, a threaded rod 703 is penetrated on the locking base plate 701, a claw 704 is fixedly arranged at the end of the threaded rod 703, and a locking bolt 705 matching therewith is arranged on the threaded rod 703, an anti-retraction plate 706 is arranged between the locking base plate 701 and the locking bolt 705, and the cross-section of the anti-retraction plate 706 is arranged in a "V" shape. Before installation, the locking member 7 can ensure that the subsequent tightening installation will not shake easily by placing the guide wheel 702 in the anti-slip groove 6, and can also prevent subsequent loosening and falling. Then, the end wall of the vacuum tank 2 and the tank cover 3 are placed between the locking base plate 701 and the claw 704, and the locking bolt 705 is continuously screwed to finally ensure the sealing effect between the vacuum tank 2 and the tank cover 3. The anti-retraction plate 706 can prevent the subsequent locking bolt 705 from being loosened due to thread withdrawal during use.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vacuum tank sealing structure for nano powder production, comprising two sets of support platforms (1) arranged opposite to each other, a vacuum tank (2) being arranged above the two sets of support platforms (1), and a tank cover (3) being arranged at the end of the vacuum tank (2) via a hinge, wherein: The end surface of the vacuum tank (2) is provided with a boss (4), the inner wall of the tank cover (3) is provided with a groove (5) matched with the boss (4), the outer wall of the tank cover (3) is provided with an anti-slip groove (6), and the anti-slip groove (6) is provided with a plurality of groups of locking parts (7) for strengthening the sealing effect between the vacuum tank (2) and the tank cover (3).

2. The vacuum tank sealing structure for nano powder production according to claim 1, characterized in that: The tank wall of the vacuum tank (2) adopts a double-layer structure.

3. The vacuum tank sealing structure for nano powder production according to claim 2, characterized in that: A reinforcing rib (8) is arranged on the outer wall of the can cover (3), a handle (9) is arranged on the reinforcing rib (8), and two groups of supporting wheels (10) are arranged at the bottom of the can cover (3) along the opening and closing direction thereof.

4. The vacuum tank sealing structure for nano powder production according to claim 3, characterized in that: At least two groups of the bosses (4) and the grooves (5) are provided.

5. The vacuum tank sealing structure for nano powder production according to claim 4, characterized in that: An introduction groove (11) communicating with the anti-slip groove (6) is arranged on the side wall of the tank cover (3), and the introduction groove (11) is used for placing the locking member (7) in the anti-slip groove (6).

6. The vacuum tank sealing structure for nano powder production according to claim 5, characterized in that: The locking member (7) comprises a locking base plate (701), a guide wheel (702) matching the anti-slip groove (6) is arranged on the side wall of the locking base plate (701), a threaded rod (703) is penetrated through the locking base plate (701), a clamping claw (704) is fixedly arranged at the end of the threaded rod (703), a locking bolt (705) matching with the threaded rod (703) is arranged on the threaded rod (703), an anti-retraction plate (706) is arranged between the locking base plate (701) and the locking bolt (705), and the cross section of the anti-retraction plate (706) is arranged in a "V" shape.

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