CN211660183U

CN211660183U - Open type nano intelligent sand mill

Info

Publication number: CN211660183U
Application number: CN201921910408.7U
Authority: CN
Inventors: 谢镭; 雷粤; 雷立猛; 尼佐利·密尔科
Original assignee: Fuhler Guangdong Smart Nano Technology Co ltd
Current assignee: Fuhler Guangdong Smart Nano Technology Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-10-13
Anticipated expiration: 2029-11-07

Abstract

The utility model relates to an open-type nanometer intelligence sand mill, including the grinding barrel of vertical setting with stretch into this grinding barrel and drive rotatory grinding rotor by the main shaft, be formed with annular gap between grinding barrel and the grinding rotor, material and grinding medium get into from feed inlet and the medium entry that sets up on the grinding barrel respectively annular gap, material flow direction setting are at the separator of grinding barrel discharge gate after grinding medium and rotatory grinding rotor grind, the material warp after the grinding the separator separation back outflow grinding barrel, grinding medium flow back extremely under self action of gravity after the separator blocks feed inlet department. The utility model discloses a perpendicular installation of rotor is used the back, and grinding medium passes through the passageway, flows back to feed inlet department under the effect of gravity, gets into annular gap again in order to form the circulation, improves grinding efficiency.

Description

Open type nano intelligent sand mill

Technical Field

The utility model relates to a sand mill.

Background

With the development of industrialization, the grinding quality of the sand mill is higher and higher. The sand mill is updated continuously and is made to appear like a hundred flowers at the same time, and various types are appeared. Such as a vertical sand mill, a horizontal sand mill, a straight cylinder sand mill or a conical cylinder sand mill, etc. The traditional sand mill generally feeds materials through mechanical seal, after the materials are stirred and ground at a high speed by a rotor and a grinding medium, the grinding medium and slurry are filtered by a separator, and the materials are discharged through a flange end cover of a grinding barrel. The traditional sand mill has the following defects:

1. when the grinding media and slurry are filtered through the separator, there is a plugging near the separator, even at the discharge outlet, due to some of the more viscous slurry.

2. If the traditional sand mill needs to replace or recover grinding media, the end cover needs to be disassembled to be recovered, if the traditional sand mill is an experimental type or a small-sized sand mill, the traditional sand mill is simpler, but if the traditional sand mill is a large-sized or a plurality of ultra-large-sized sand mills, the workload is large and the trouble is caused when the end cover needs to be disassembled to replace or recover the grinding media.

3. After the general rotor is vertically installed and used, grinding media and slurry are easy to accumulate on a gland of the rotor, and the more the grinding media and the slurry are accumulated at the position closer to the shaft center, so that the grinding media continuously abrade the rotor shaft and the loss of the rotor shaft is continuously increased after the rotor is used for a long time.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a can improve the open-type nanometer intelligence sand mill of grinding effect, avoiding the putty.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an open type nanometer intelligent sand mill comprises a frame, a grinding barrel vertically arranged on the frame, a main shaft arranged on the frame and driven by a motor, and a grinding rotor extending into the grinding barrel and driven by the main shaft to rotate, wherein an annular gap is formed between the grinding barrel and the grinding rotor, materials are conveyed to the annular gap from a feed inlet through a feed pump, grinding media and the rotating grinding rotor grind the materials in the annular gap, and the ground materials are conveyed to a separator at a discharge outlet through a discharge pump arranged on the frame and then flow out.

Preferably, the grinding rotor includes a rotating body driven by the spindle, a shaft hole for mounting the spindle is axially formed in a center of the rotating body, an annular cavity is formed in an upper portion of the rotating body, a top cover for sealing the annular cavity is disposed at a top end of the rotating body, and a groove is formed in an end surface of a lower portion of the rotating body.

Preferably, the grinding barrel comprises a barrel body forming the annular gap with the grinding rotor and an end cover arranged at the top end of the barrel body and sealing the barrel body, and a medium inlet is horizontally arranged on the side wall of the end cover.

Preferably, the bottom end of the barrel body is provided with the feeding hole, the top end of the end cover is provided with the discharging hole, the separator penetrates through the main shaft and is installed at the discharging hole of the end cover, materials and grinding media respectively enter the annular gap from the feeding hole and the medium inlet, the grinding media and the ground materials flow to the separator from bottom to top under the action of the discharging pump, the ground materials flow out after being separated by the separator, and the grinding media flow back to the feeding hole under the action of self gravity after being blocked by the separator.

Preferably, the side wall of the end cover is provided with the feed inlet, the bottom end of the barrel body is provided with the discharge outlet, the separator is arranged at the discharge outlet at the bottom end of the barrel body, materials and grinding media respectively enter the annular gap from the feed inlet and the medium inlet, the grinding media and the ground materials flow to the separator from top to bottom under the action of the discharge pump and self gravity, the ground materials flow out after being separated by the separator, and the grinding media are kept in the annular gap after being blocked by the separator and continuously participate in grinding.

Preferably, a discharge pipe communicated with the separator is horizontally arranged on the side wall of the end cover, and an ultrasonic cleaning device is arranged at the outlet end of the discharge pipe.

Preferably, a channel for back flow of the grinding media is axially arranged between the shaft hole and the annular cavity and is communicated with the groove.

Preferably, a stepped hole is formed in the top cover, the main shaft penetrates through an inner hole of the stepped hole and extends into the shaft hole, and an outer hole of the stepped hole is communicated with the passage.

Preferably, the grinding barrel further comprises an outer barrel sleeved outside the barrel body and hermetically connected with the barrel body through a flange, a separation cavity is formed between the outer barrel and the barrel body, and cooling liquid or hot fluid can be introduced into the separation cavity and the annular cavity.

Preferably, a liquid inlet pipe and a liquid outlet pipe which are both communicated with the annular cavity are arranged in the main shaft, and cooling liquid or hot fluid introduced into the annular cavity from the liquid inlet pipe exchanges heat in the annular cavity and then flows out of the liquid outlet pipe.

According to the technical scheme, the utility model provides a sand mill of two kinds of different business turn over material forms, one of them is bottom feeding, top ejection of compact, and the grinding medium of this kind of mode flows back to feed inlet department through the passageway under the effect of gravity, gets into annular gap again in order to form the circulation, improves grinding efficiency to convenient the change; the other type is top feeding and bottom discharging, and the material in the mode has high discharging efficiency and is not easy to block under the dual actions of self gravity and a discharging pump.

Drawings

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

Fig. 2 is a side view schematic of the structure of fig. 1.

Fig. 3 is a schematic view of the structure of the grinding rotor of fig. 1.

Fig. 4 is a schematic structural view of another preferred embodiment of the present invention.

Fig. 5 is a side view schematic of the structure of fig. 4.

Fig. 6 is a schematic view of the structure of the grinding rotor of fig. 4.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 6, and the exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

The utility model provides an open-type nanometer intelligence sand mill, including frame 100, vertical setting grinding barrel 1 in the frame, set up in the frame by motor 102 driven main shaft 2 and stretch into this grinding barrel and by the main shaft drives rotatory grinding rotor 4, be formed with annular gap 3 between grinding barrel and the grinding rotor, the material passes through charge pump 103 and carries extremely from feed inlet 11 annular gap, grinding medium and rotation grinding rotor grinds the material in the annular gap, and the material after the grinding is carried to separator 5 separations by the discharge pump 104 that sets up in the frame, then flows from discharge gate 13. The utility model discloses an annular gap grinds, exceeds 3-5 times energy input efficiency than traditional ball mill, and annular gap can adopt the toper design, grinds rotor and grinding barrel promptly and designs into the toper that the upper end is big, the lower extreme is little, can further improve energy input efficiency and grinding effect from this.

The grinding rotor 4 of the utility model comprises a rotating body 41 driven by the main shaft, a shaft hole 42 for installing the main shaft is axially arranged at the center of the rotating body, an annular cavity 43 is formed in the rotating body, the weight is light, and the energy consumption can be reduced; meanwhile, the annular cavity is not only favorable for heat dissipation, but also convenient for arrangement of cooling equipment, and ensures that heat generated by the rotating main body is quickly dissipated so as to prolong the service life of the rotor; a top cover 44 for sealing the annular cavity is arranged at the top end of the rotating body, so that the combined grinding device of the rotating body and the top cover is formed, the rotating body is convenient to process, and the installation, the maintenance and the disassembly are convenient. Preferably, the annular cavity is formed at the upper part of the rotating body, and the groove 45 is formed at the lower end face of the rotating body, and the groove is designed to further reduce the mass of the rotor and facilitate feeding or discharging from the groove at the bottom. The grinding barrel 1 of the utility model comprises a barrel body 14 forming the annular gap with the grinding rotor and an end cover 15 arranged at the top end of the barrel body and sealing the barrel body, and the structure is favorable for mounting, dismounting and overhauling the rotor and has better sealing performance; the side wall of the end cover is horizontally provided with a medium inlet 12 for adding grinding medium into the annular gap, and an online real-time adding mode can be adopted.

Referring to fig. 1, 2 and 3, the utility model provides an open type nanometer intelligent sand mill with a preferred mode, which is provided with a feed inlet 11 at the bottom end of a barrel body, the top end of an end cover is provided with a discharge port 13, a separator passes through a main shaft and is arranged at the discharge port of the end cover, materials and grinding media enter into an annular gap from the feed inlet and a medium inlet respectively, in the annular gap, a rotary grinding rotor and grinding media grind the materials, the grinding media and the ground materials flow to the separator of the discharge port from bottom to top under the discharge pressure of a discharge pump, the ground materials flow out after being separated by the separator, the grinding media flow back to the feed inlet under the self gravity action after being blocked by the separator, thereby participating in the grinding of new materials and realizing the back flow of the grinding media, the grinding effect is improved, the grinding fineness is ensured, and the particle size distribution of the ground product is narrow. This mode adopts bottom feeding, top ejection of compact and the mode of advancing grinding medium, has overcome the material and has ground the inhomogeneous phenomenon of medium distribution in the initial stage grinding barrel to can guarantee that the grinding medium span is less, further improve grinding effect. Preferably, the side wall of the end cover is horizontally provided with a discharge pipe 16 communicated with the separator, the outlet end of the discharge pipe is provided with an ultrasonic cleaning device 6, when certain slurry with high viscosity is ground, the ultrasonic cleaning device is started to clean the discharge pipe, so that the phenomenon of material blockage can be effectively prevented, and the discharge efficiency is improved.

In the above preferred mode, a channel 46 is axially arranged between the shaft hole 42 and the annular cavity, the channel is communicated with the groove 45, grinding media flow back through the channel and are recycled, the grinding media can be prevented from accumulating near the main shaft for a long time, and the abrasion to the main shaft is reduced. In practice, the passage may be provided directly on the rotating body or on a sleeve on which the spindle is mounted. When the rotor works, the grinding medium blocked by the separator flows back to the feed inlet through the channel under the action of gravity, so that the grinding medium enters the annular gap again and is mixed with the initial material to form circulation, and the grinding efficiency is improved. When the grinding media need to be recovered or replaced, the feeding is stopped, the grinding media flow out from the feeding hole under the action of gravity, and then new grinding media are added from the media inlet, so that the replacement of the grinding media can be completed. In the implementation process, a step hole 47 is formed in the top cover, the main shaft penetrates through an inner hole of the step hole and extends into the shaft hole, and an outer hole of the step hole is communicated with the passage. The grinding medium flows back to the outer hole under the action of gravity, and the outer hole has a larger aperture, so that more grinding medium can be accommodated, the grinding medium can conveniently and quickly enter the channel, and the backflow efficiency of the grinding medium is improved. Preferably, the axially outer wall of the rotating body and the inner wall of the recess are provided with a plurality of pins 48 to enhance the grinding effect.

Referring to fig. 4, 5 and 6, as another preferred mode of the utility model discloses an end cover lateral wall sets up feed inlet 11, the staving bottom sets up discharge gate 13, the separator is installed in the staving bottom discharge gate department, and material and grinding medium are followed respectively feed inlet and medium entry 12 get into annular gap, in annular gap, rotatory grinding rotor and grinding medium grind the material, and grinding medium and the material after grinding are in discharge pressure and the self action of gravity of discharge pump flow to from top to bottom the separator, and the material after the grinding warp separator separation back bottom discharge gate flows out, and grinding medium keeps continuing to participate in the grinding in annular gap after blockking by the separator. This mode adopts the top feeding and advances the mode of grinding medium, the ejection of compact of bottom, and material and grinding medium not only can improve discharging efficiency, practice thrift the energy consumption under the dual function of self gravity and discharge pump discharge pressure, are difficult for taking place blocking phenomenon moreover.

The grinding barrel 1 of the utility model also comprises an outer barrel 17 which is sleeved outside the barrel body and is hermetically connected with the barrel body through a flange 7, a separation cavity 8 is formed between the outer barrel and the barrel body, and cooling liquid or hot fluid can be introduced into the separation cavity and the annular cavity, and the rotor and the grinding barrel can be cooled by the cooling liquid, so that the service life of the equipment is prolonged; the grinding of certain materials at the most suitable temperature can also be ensured by heating. The bottom of the outer barrel is hermetically connected with a cover plate 18. As above-mentioned preferred mode, be provided with on the apron and stretch into the recess and with the inlet pipe 9 of feed inlet intercommunication, the material that will wait to grind through the inlet pipe is direct like this carries the high-order department to the annular gap bottom, the diapire department of recess promptly, along with grinding the rotation of rotor, the material downward flow direction annular gap bottom low-order department, the lowest department promptly under grinding pressure and material self action of gravity to be favorable to the dispersion of initial material, also improved feeding efficiency. As another preferable mode, the separator 5 is installed on the bottom wall of the barrel body, and because the groove is formed at the bottom end of the grinding rotor, enough space is reserved for installation and disassembly of the separator, so that convenience is improved; the ejection of compact inner chamber of separator passes the diapire and passes from the outside the material pipe 40 intercommunication of apron, the process the material after the separator separation is from the vertical outflow of this material pipe under the dual function of self gravity and discharge pump to discharging efficiency has effectively been improved.

The bottom cover 49 which can be connected with the main shaft bolt is arranged at the bottom of the groove of the utility model, which is convenient for installing, disassembling and maintaining the main shaft; simultaneously, the bottom cover is provided with the stirring blade 10, and as the preferable mode, the rotating stirring blade can preliminarily distribute the fed materials, so that the medium and the materials are uniformly distributed in the inner barrel, and the grinding efficiency is improved. As one preferable mode, the rotating stirring blade can stir and disperse the materials and the grinding media near the separator, so that the separator is prevented from being blocked, and the discharging efficiency is improved; and the axial outer wall of the rotating main body and the inner wall of the groove are provided with a plurality of bar pins 48, so that not only can the grinding effect be improved, but also the bar pins on the inner wall of the groove can further stir materials and grinding media near the separator, thereby further avoiding blocking the separator and improving the discharging efficiency.

In the implementation process, the cover plate can be provided with an opening 19 for allowing cooling liquid or hot fluid to flow into the separating cavity, the side wall of the upper end of the outer barrel is provided with an outlet 20 for allowing the cooling liquid or the hot fluid to flow out, and the cooling liquid or the hot fluid passes through the separating cavity from bottom to top to form circulation, so that the barrel body is cooled or heated, and the heat exchange efficiency is improved. A liquid inlet pipe 105 and a liquid outlet pipe 106 which are communicated with the annular cavity are arranged in the main shaft, and cooling liquid or hot fluid introduced into the annular cavity from the liquid inlet pipe flows out of the liquid outlet pipe after heat exchange is carried out in the annular cavity, so that circulation can be formed, the grinding rotor is continuously cooled or heated, and the heat exchange efficiency and effect are improved. In the implementation process, the liquid inlet pipe is connected with the lower part of the annular cavity, and the liquid outlet pipe is connected with the upper part of the annular cavity, so that the cooling liquid or the hot fluid in the annular cavity can be ensured to flow out after being filled, and the heat exchange effect is further improved.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims

1. Open-type nanometer intelligence sand mill, including frame, vertical setting in the grinding barrel in the frame, set up in the frame by motor drive's main shaft and stretch into this grinding barrel and by the rotatory grinding rotor of main shaft drive, its characterized in that: an annular gap is formed between the grinding barrel and the grinding rotor, materials are conveyed to the annular gap from the feed inlet through the feed pump, grinding media and the grinding rotor rotate to grind the materials in the annular gap, and the ground materials are conveyed to the separator separation port of the discharge outlet through the discharge pump arranged on the rack to flow out.

2. The open-type nanometer intelligent sand mill of claim 1, characterized in that: the grinding rotor comprises a rotating body driven by the main shaft, a shaft hole for installing the main shaft is axially formed in the center of the rotating body, an annular cavity is formed in the upper portion of the rotating body, a top cover for sealing the annular cavity is arranged at the top end of the rotating body, and a groove is formed in the end face of the lower portion of the rotating body.

3. The open-type nanometer intelligent sand mill of claim 2, characterized in that: the grinding barrel comprises a barrel body forming the annular gap with the grinding rotor and an end cover arranged at the top end of the barrel body and sealing the barrel body, and a medium inlet is horizontally formed in the side wall of the end cover.

4. The open-type nanometer intelligent sand mill of claim 3, characterized in that: the feed inlet is arranged at the bottom end of the barrel body, the discharge outlet is arranged at the top end of the end cover, the separator penetrates through the main shaft and is arranged at the discharge outlet of the end cover, materials and grinding media enter the annular gap from the feed inlet and the medium inlet respectively, the grinding media and the ground materials flow to the separator from bottom to top under the action of the discharge pump, the ground materials flow out after being separated by the separator, and the grinding media flow back to the feed inlet under the action of self gravity after being blocked by the separator.

5. The open-type nanometer intelligent sand mill of claim 3, characterized in that: the end cover lateral wall sets up the feed inlet, the staving bottom sets up the discharge gate, the separator is installed in the staving bottom discharge gate department, material and grinding medium are followed respectively feed inlet and medium entry get into the annular gap, the material after grinding medium and grinding is in discharge pump and self action of gravity from top to bottom flow to the separator, the material after the grinding warp the separator separation back outflow, the grinding medium is stayed in the annular gap after the separator blocks and continues to participate in the grinding.

6. The open-type nanometer intelligent sand mill of claim 4, characterized in that: the side wall of the end cover is horizontally provided with a discharge pipe communicated with the separator, and the outlet end of the discharge pipe is provided with an ultrasonic cleaning device.

7. The open-type nanometer intelligent sand mill of claim 4, characterized in that: and a channel for the backflow of the grinding medium is axially arranged between the shaft hole and the annular cavity and is communicated with the groove.

8. The open-type nanometer intelligent sand mill of claim 7, wherein: a step hole is formed in the top cover, the main shaft penetrates through an inner hole of the step hole and extends into the shaft hole, and an outer hole of the step hole is communicated with the channel.

9. The open-type nanometer intelligent sand mill of claim 4 or 5, characterized in that: the grinding barrel further comprises an outer barrel which is sleeved on the outer side of the barrel body and is in sealing connection with the barrel body through a flange, a separation cavity is formed between the outer barrel and the barrel body, and cooling liquid or hot fluid can be introduced into the separation cavity and the annular cavity.

10. The open-type nanometer intelligent sand mill of claim 9, wherein: a liquid inlet pipe and a liquid outlet pipe which are communicated with the annular cavity are arranged in the main shaft, and cooling liquid or hot fluid introduced into the annular cavity from the liquid inlet pipe exchanges heat in the annular cavity and then flows out of the liquid outlet pipe.