CN213265745U - Sand mill - Google Patents

Abstract

The utility model provides a sand mill, the test platform comprises a support, inner tube and cooling urceolus are ground in the installation on the frame, grind fixed a plurality of filters on the inner wall of inner tube, evenly set up the through-hole on the filter, the aperture of through-hole is followed the filter of the top and is gone up the grow gradually to the filter of below, be provided with driving motor in the frame, fixed connection (mixing) shaft in driving motor's the pivot, the (mixing) shaft is worn out the frame and is stretched into in grinding the inner tube, the (mixing) shaft rotates with the filter is sealed to be connected, can dismantle on the (mixing) shaft and connect a plurality of. The utility model discloses a change the drive mode of current rotor, it has solved current sand mill and has all set up the rotor at each layer grinding vessel, and the middle level rotor that leads to is not convenient for driven technical problem, has produced the technological effect of simplified structure, the installation of being convenient for, through setting up the cooling urceolus, has produced the technological effect of extension equipment life.

Description

Sand mill

Technical Field

The utility model relates to a graphite alkene production technical field especially relates to a sand mill.

Background

Graphene is a two-dimensional planar monolayer structure of carbon formed by bonding sp 2-hybridized carbon atoms in the form of a hexagonal lattice, and is an allotrope of carbon. Graphene can form zero-dimensional fullerenes, one-dimensional carbon nanotubes, and three-dimensional graphite, respectively, when it is varied in the manner of wrapping, winding, and stacking, while building up the basic unit of carbon material of other dimensions. The graphene has good electrical and optical properties, mechanical properties, heat conduction properties, extremely high charge carrier mobility, and excellent mechanical strength and flexibility. These properties of graphene have led to a great deal of attention and have rapidly become the focus of research. The chemically modified graphene and the derivative thereof are materials with special functions, can be used for transistors, liquid crystal devices, electrochemical biosensors, super capacitors, fuel cells, solar cells and the like, and have wide application prospects.

At present, graphene is obtained through mechanical stripping of a ball mill, a colloid mill, an air flow mill, a homogenizer and the like, but the obtained graphene is wide in thickness distribution and unstable in quality. The method is a better device for preparing the graphene by grinding and stripping under the liquid phase condition by adopting a sand mill. However, since the graphene cannot be selectively peeled off, the graphene in the grinding chamber is sheared for a long time, and the crystal junction is damaged, so that the preparation efficiency is always low.

The Chinese utility model patent with application number 201720445064.1 provides a sand mill for preparing graphene by industrialized layered grinding and stripping, which realizes continuous and step-by-step stripping preparation of graphene by arranging three layers of grinding cylinders; the grinding cylinder is divided into three layers, the layers are separated by partition plates, the partition plates are densely distributed with holes, graphite slurry can freely pass through the holes, and grinding media cannot pass through the holes. The prior art can improve the preparation efficiency of graphene to a certain extent, but still has some defects, for example, 1, the prior art does not provide a cooling structure, and graphite slurry emits a large amount of heat during grinding, which shortens the service life of the whole equipment; 2. in the prior art, a rotor is arranged in each layer of grinding cylinder, and the rotor in the middle layer is inconvenient to drive; 3. graphite from up-going down moves, gets into the grinding vessel of upper story from the hole on the baffle, and does not set up the stirring piece on the rotor, does not set up guide structure on the grinding vessel wall yet, and it is lower to grind discharging efficiency.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a sand mill, it has solved the cooling structure that does not exist among the prior art, and equipment life is not long, all sets up the rotor in each layer grinding vessel, and the intermediate level rotor that leads to is not convenient for drive and the rotor on not set up the ejection of compact inefficiency that the stirring piece leads to problem.

According to the embodiment of the utility model, a sand mill, the test platform comprises a support, inner tube and cooling urceolus are ground to sealed mounting on the frame, grind the filter that distributes about a plurality of on the inner wall of inner tube fixed, evenly set up the through-hole on the filter, the aperture of through-hole is followed the filter of the top and is grown gradually to the filter of below, be provided with driving motor in the frame, fixed connection (mixing) shaft in driving motor's the pivot, the (mixing) shaft is worn out the frame just stretches into grind in the inner tube, the (mixing) shaft with the filter seals to rotate and connects, can dismantle on the (mixing) shaft and connect a plurality of stirring pieces, it sets up the feed inlet to grind the inner tube bottom, and.

The technical principle of the utility model is that: put into the grinding medium in grinding the inner tube, graphite slurry gets into from the feed inlet and grinds the inner tube, then start driving motor, the stirring piece forms the stirring to grinding the medium, accelerate discharging efficiency, along with constantly being ground of graphite, graphite enters into the top from grinding the lowermost of inner tube gradually, the graphite that finally accords with the size requirement is discharged from the discharge gate, in the grinding process, grind a large amount of heats of inner tube release, cooling medium in its heat accessible cooling urceolus absorbs.

Compared with the prior art, the utility model discloses following beneficial effect has: through having adopted driving motor to drive a (mixing) shaft, and this (mixing) shaft and all filter all sealed rotation connection (the (mixing) shaft rotates with the filter and is connected, and sealed, it means that graphite slurry can not get into the filter top from its junction), it has been solved current sand mill and has set up the multilayer rotor, the middle level rotor that leads to is not convenient for driven technical problem, the simplified structure has been produced, the technological effect of installation of being convenient for, through grinding the outside mode that sets up the cooling urceolus of inner tube, the reinforcing heat dissipation has been produced, the technological effect of extension equipment life.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the above drawings: 1. a machine base; 2. grinding the inner barrel; 3. cooling the outer cylinder; 4. a filter plate; 5. a drive motor; 6. a stirring shaft; 7. a stirring sheet; 8. heat dissipation fins; 9. a feed inlet; 10. and (4) a discharge port.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in figure 1, the embodiment of the utility model provides a sand mill, the test platform comprises a support 1, seal installation grinds inner tube 2 and cooling urceolus 3 on the frame 1, grind the filter 4 of a plurality of upper and lower distributions on the inner wall of inner tube 2, evenly set up the through-hole on the filter 4, the aperture of through-hole is from the filter 4 of the top to the filter 4 grow gradually of below, be provided with driving motor 5 in the frame 1, fixed connection (mixing) shaft 6 in driving motor 5's the pivot, (mixing) shaft 6 is worn out frame 1 just stretches into grind in the inner tube 2, (mixing) shaft 6 with filter 4 seals to rotate and connects, can dismantle on the (mixing) shaft 6 and connect a plurality of stirring pieces 7, grind inner tube 2 bottom and set up feed inlet 9, and the top sets up discharge gate 10.

The installation mode of this embodiment is, install grinding inner tube 2 and cooling urceolus 3 on frame 1 earlier, then pour into the grinding medium, install stirring piece 7 and filter 4 of the best lower floor, sealed fixed connection between filter 4 and the grinding inner tube 2. Then, grinding media are poured into the filter plate 4 at the lowest layer, and the stirring sheet 7 and the filter plate 4 at the second layer are installed until the stirring sheet 7 at the last layer is installed. The maximum pore size of the through-holes should be smaller than the size of the grinding media. Before the grinding is started, the cooling outer cylinder 3 is filled with a cooling medium.

The outer wall of the cooling outer cylinder 3 is provided with heat dissipation fins 8, and the cooling outer cylinder 3 is connected with a cooling water tank through a circulating pump. The cooling outer cylinder 3 can be made of metal or alloy with good heat dissipation, such as aluminum alloy. The heat dissipation fins 8 are arranged, so that the heat dissipation effect can be enhanced, and the service life of the sand mill is further prolonged.

The filter plate 4 is of a bottomless truncated cone-shaped structure. As shown in FIG. 1, the filter plate 4 is mounted with the larger diameter side down and the smaller diameter side up. For circular shape filter 4, the filter 4 of round platform type structure can effectively increase filter area, improves the load in the unit interval, avoids the through-hole to be blockked up.

The inner wall of the grinding inner cylinder 2 is provided with guide ribs (not shown in the figure) which are distributed spirally. In the present embodiment, the guide ribs do not extend continuously from the upper end of the inner grinding drum 2 to the lower end of the inner grinding drum 2, but are provided in stages according to the installation position of the filter plates 4, because the continuous guide ribs do not facilitate the installation of the filter plates 4. Through setting up the direction muscle, can lead to the graphite thick liquids in grinding inner tube 2, make graphite thick liquids move towards ejection of compact direction, improve discharging efficiency.

The stirring blade 7 is inclined downward from the mounting end to the free end. The stirrer 7 is arranged in such a way as to cooperate with the truncated-cone-shaped filter plate 4. So that no stirring dead angle exists in the grinding process, thereby further improving the discharging efficiency.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (5)

1. A sand mill characterized in that: the novel grinding machine comprises a frame, inner tube and cooling urceolus are ground to sealed mounting on the frame, grind the filter that a plurality of upper and lower distributions on the inner wall of inner tube fixed, evenly set up the through-hole on the filter, the aperture of through-hole is followed the filter of the top and is gone up the grow gradually to the filter of below, be provided with driving motor in the frame, fixed connection (mixing) shaft in driving motor's the pivot, the (mixing) shaft is worn out the frame just stretches into grind in the inner tube, the (mixing) shaft with the filter rotates the connection sealedly, can dismantle on the (mixing) shaft and connect a plurality of stirring pieces, it sets up the feed inlet to grind.

2. A sand mill as claimed in claim 1, wherein: and the outer wall of the cooling outer cylinder is provided with heat dissipation fins, and the cooling outer cylinder is connected with a cooling water tank through a circulating pump.

3. A sand mill as claimed in claim 1, wherein: the filter plate is of a bottomless circular truncated cone-shaped structure.

4. A sand mill as claimed in claim 1, wherein: and guide ribs which are spirally distributed are arranged on the inner wall of the grinding inner cylinder.

5. A sand mill as claimed in claim 3, wherein: the stirring sheet is inclined downwards from the mounting end to the free end.

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