CN215197493U - Nanometer sand mill with novel cooling body - Google Patents

Abstract

The utility model relates to a nanometer sand mill with a novel cooling mechanism, which comprises a driving device, a sealing seat, a grinding cylinder, a grinding rod, two rotating bearings, a cooling pipe, a plurality of heat transfer plates and a plurality of bearing sealing rings; the grinding cylinder is hermetically connected with the sealing seat, a hollow cavity is arranged on the side wall of the grinding cylinder, and a liquid outlet and a liquid inlet are formed in the hollow cavity; the grinding rod is arranged inside the grinding cylinder and is provided with a cooling groove; the outer ring of the rotating bearing is fixedly connected with the inner side wall of the cooling groove; the two rotating bearings are sleeved with cooling pipes, and openings of the cooling pipes are communicated with the hollow cavity; the first ends of the heat transfer plates are arranged on the outer side wall of the cooling pipe at intervals along the circumferential direction of the cooling pipe; two bearing sealing rings are arranged on two sides of each rotating bearing. The utility model discloses a nanometer sand mill, rational in infrastructure, the temperature that can reduce the grinding rod fast and the temperature of grinding vessel lateral wall, and then cools down the inside raw materials of grinding vessel fast.

Description

Nanometer sand mill with novel cooling body

Technical Field

The utility model relates to a sand mill technical field especially relates to a nanometer sand mill with novel cooling body.

Background

The sand mill inputs the solid-liquid phase mixed material which is pre-dispersed and wetted by the stirrer into the grinding cylinder by using a material pump, and the material and the grinding medium in the grinding cylinder are stirred by the disperser rotating at a high speed, so that the solid particles and the grinding medium in the material generate stronger collision, friction and shearing actions, and the purposes of accelerating the grinding of particles and dispersing aggregates are achieved. And separating the grinding medium from the ground and dispersed material through a dynamic separator, and flowing out of a discharge pipe.

In the actual production process, when the sand mill ground, the inside of grinding barrel can produce a large amount of heats, makes material temperature rise rapidly, if not with grinding temperature control in certain extent, will aggravate the solvent and volatilize to make the material ratio produce the deviation and influence product quality, probably produce local coking phenomenon when serious.

The cooling mode of current sand mill can only set up the cooling chamber in the outside of grinding vessel and cool off the inside raw materials of grinding vessel, because the inner wall of grinding vessel can only contact with partial raw materials, can not be quick to the inside raw materials of grinding vessel carry out quick cooling.

At present, no effective solution is provided aiming at the problem that the raw material in the grinding cylinder can not be rapidly cooled in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nanometer sand mill with novel cooling body to not enough among the prior art to at least, can not carry out quick refrigerated problem to the inside raw materials of grinding section of thick bamboo fast among the solution prior art.

In order to achieve the above object, the utility model provides a nanometer sand mill with novel cooling body, including drive arrangement, still include:

the sealing seat is sleeved with an output shaft of the driving device;

the grinding cylinder is hermetically connected with the sealing seat, a hollow cavity is arranged on the side wall of the grinding cylinder, a liquid outlet is formed in the lower side of the first end of the hollow cavity, a liquid inlet is formed in the upper side of the second end of the hollow cavity, and the output shaft is arranged inside the grinding cylinder;

the grinding rod is arranged inside the grinding cylinder, a first end of the grinding rod is fixedly connected with the output shaft, and a second end of the grinding rod is provided with a cooling groove;

the two rotating bearings are arranged inside the cooling tank at intervals, and the outer ring of each rotating bearing is fixedly connected with the inner side wall of the cooling tank;

the cooling pipe is arranged inside the cooling groove, an opening of the cooling pipe is communicated with the hollow cavity for arrangement, and the two rotary bearings are sleeved with the cooling pipe for arrangement;

the first ends of the heat transfer plates are arranged on the outer side wall of the cooling pipe at intervals along the circumferential direction of the cooling pipe and are positioned between the two rotating bearings, and the second ends of the heat transfer plates are arranged close to the inner side wall of the cooling groove;

and two bearing sealing rings are arranged on two sides of each rotating bearing.

Further, in the nanometer sand mill, still include:

the liquid guide plate is obliquely arranged inside the cooling pipe, a gap is arranged between the first end of the liquid guide plate and the first end of the cooling pipe, and the second end of the liquid guide plate is arranged inside the hollow cavity.

Further, in the nanometer sand mill, still include:

the controller is arranged on the driving device and is electrically connected with the driving device.

Further, in the nanometer sand mill, still include:

the first temperature sensor is arranged on one side wall of the hollow cavity, close to the grinding rod, and is electrically connected with the controller.

Further, in the nanometer sand mill, still include:

the liquid inlet pipe is arranged inside the grinding cylinder, and a first end of the liquid inlet pipe is connected with the liquid inlet;

the coiled pipe is arranged outside the grinding cylinder, and a first end of the coiled pipe is connected with a second end of the liquid inlet pipe;

the liquid outlet pipe is arranged inside the grinding cylinder, a first end of the liquid outlet pipe is connected with a second end of the coiled pipe, and a second end of the liquid outlet pipe is connected with the liquid outlet;

the peristaltic pump is arranged on the liquid outlet pipe and is electrically connected with the controller.

Further, in the nanometer sand mill, still include:

and the electromagnetic valve is arranged on the liquid outlet pipe and is electrically connected with the controller.

Further, in the nanometer sand mill, still include:

the cooling box is provided with the coiled pipe, and the coiled pipe penetrates through the side wall of the cooling box and is connected with the liquid outlet pipe.

Further, in the nanometer sand mill, still include:

and the water outlet of the water cooler is communicated with the cooling tank through a pipeline and is electrically connected with the controller.

Further, in the nanometer sand mill, still include:

and the second temperature sensor is arranged on one side wall of the hollow cavity, which is far away from the grinding rod, and is electrically connected with the controller.

Further, in the nanometer sand mill, still include:

the grinding cylinder is sleeved on the plurality of heat dissipation plates at intervals.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

(1) the nanometer sand mill with the novel cooling structure of the utility model is provided with the cooling tank through the second end of the grinding rod, the cooling pipe is arranged in the cooling tank through the bearing, and then the cooling liquid is filled in the cooling pipe, so that the temperature of the cooling pipe can be reduced, and further the temperature of the grinding rod is reduced through the heat transfer plate, so that the grinding rod cools the raw material in the grinding cylinder;

(2) the peristaltic pump drives the cavity body and the cooling liquid in the cooling pipe to flow, and the coiled pipe is used for cooling the cooling liquid, so that the problem that the interior of the grinding cylinder cannot be cooled after the temperature of the cooling liquid in the cavity body and the cooling pipe rises is solved;

(3) the utility model discloses a nanometer sand mill with novel cooling structure, rational in infrastructure, the temperature that can reduce the grinding rod and the grinding vessel lateral wall can cool down the inside raw materials of grinding vessel fast.

Drawings

Fig. 1 is a schematic structural diagram (one) of a nano sand mill with a novel cooling structure according to the present invention;

fig. 2 is a schematic structural diagram (ii) of a nano sand mill with a novel cooling structure according to the present invention;

FIG. 3 is a cross-sectional view of a grinding cylinder and a grinding rod of a nano sand mill with a novel cooling structure according to the present invention;

FIG. 4 is a schematic structural diagram of a grinding cylinder in a nanometer sand mill with a novel cooling structure according to the present invention;

wherein the reference symbols are:

1. a drive device; 2. a sealing seat; 3. an output shaft; 4. a grinding cylinder; 5. a hollow cavity; 6. a liquid inlet; 7. a liquid outlet; 8. a grinding rod; 9. a cooling tank; 10. a rotating bearing; 11. a cooling tube; 12. a heat transfer plate; 13. a bearing seal ring; 14. a liquid guide plate; 15. a controller; 16. a first temperature sensor; 17. a liquid inlet pipe; 18. a serpentine tube; 19. a liquid outlet pipe; 20. a peristaltic pump; 21. a second temperature sensor; 22. an electromagnetic valve; 23. a cooling tank; 24. a water chiller; 25. a heat sink.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like as used herein are used in the description to indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The utility model discloses a nanometer sand mill with novel cooling body, as shown in fig. 1, including drive arrangement 1, seal receptacle 2, grinding vessel 4, grinding rod 8, two rolling bearing 10, cooling tube 11, a plurality of heat transfer plate 12 and a plurality of bearing seal 13.

The driving device 1 may include a driving motor, an operation box, etc. for driving the grinding rod 8 to rotate so as to grind the raw material inside the grinding cylinder 4.

As shown in fig. 2, the output shaft 3 of the driving device 1 is sleeved with the sealing seat 2, the sealing seat 2 is coaxially provided with a bearing, the output shaft 3 is sleeved with the bearing, and the rotation of the output shaft 3 does not drive the sealing seat 2 to rotate.

Grinding vessel 4 and seal receptacle 2 sealing connection, output shaft 3 sets up in the inside of grinding vessel 4, and the lateral wall of grinding vessel 4 is provided with cavity 5, and liquid outlet 7 has been seted up to the downside of the first end of cavity 5, and inlet 6 has been seted up to the upside of the second end of cavity 5, and the inside of grinding vessel 4 is used for holding grinding raw materials, and the inside of cavity 5 is used for holding the coolant liquid to cool down the raw materials of the inside of grinding vessel 4.

The liquid outlet 7 is used for releasing the cooling liquid of the hollow cavity 5, and the liquid inlet 6 is used for adding the cooling liquid to the hollow cavity 5.

As shown in fig. 3, the grinding rod 8 is disposed inside the grinding cylinder 4, a first end of the grinding rod 8 is fixedly connected to the output shaft 3, a second end of the grinding rod 8 is provided with a cooling groove 9, and the grinding rod 8 is used for grinding the raw material inside the grinding cylinder 4 and also used for cooling the raw material.

Wherein, the cooling groove 9 is opened along the axial direction of the grinding rod 8.

The two rotating bearings 10 are arranged in the cooling tank 9 at intervals, and the outer ring of the rotating bearing 10 is fixedly connected with the inner side wall of the cooling tank 9. The cooling pipe 11 sets up in the inside of cooling bath 9, and two rolling bearing 10 are all overlapped and are established cooling pipe 11 and arrange, and the opening intercommunication cavity 5 of cooling pipe 11 arranges, and the inside of cooling pipe 11 is used for holding the coolant liquid to reduce the temperature of cooling pipe 11, and then reduce the temperature of grinding rod 8. The rotating bearing 10 is used for ensuring that the cooling pipe 11 sleeved and installed on the inner ring of the rotating bearing 10 does not rotate under the condition that the grinding rod 8 rotates.

Wherein, under the circumstances that grinding rod 8 rotated, grinding rod 8 drove the outer lane of rolling bearing 10 and rotates, can't drive rolling bearing 10's inner circle and rotate, and then can't drive cooling tube 11 and take place to rotate, and then can add the coolant liquid in the inside of cooling tube 11 to reduce the temperature of cooling tube 11, and then reduce grinding rod 8's temperature.

The first ends of the heat transfer plates 12 are arranged on the outer side wall of the cooling pipe 11 at intervals along the circumferential direction of the cooling pipe 11 and are positioned between the two rotating bearings 10, and the second ends of the heat transfer plates 12 are arranged close to the inner side wall of the cooling groove 9 and are used for transferring the temperature of the cooling pipe 11 to the grinding rod 8.

Specifically, in the case where the temperature of the cooling pipe 11 is decreased, the temperature of the heat transfer plate 12 can be decreased along with the temperature of the cooling pipe 11, and the temperature of the grinding rod 8 is decreased along with the temperature of the heat transfer plate 12 due to the heat radiation effect.

Further, in order to enhance the heat conduction efficiency between the heat transfer plate 12 and the grinding rod 8, a lubricating fluid may be filled between the heat transfer plate 12 and the grinding rod 8, so that the heat transfer plate 12 is connected to the grinding rod 8 through the lubricating fluid.

Two bearing sealing rings 13 are disposed on two sides of each rolling bearing 10 for sealing the rolling bearing 10, so as to prevent the raw material in the grinding cylinder 4 from entering the inside of the rolling bearing 10 or prevent other substances from entering the inside of the rolling bearing 10.

Specifically, under the condition that the raw materials of the inside of grinding cylinder 4 need be cooled down, the staff adds the coolant liquid to the inside of hollow cavity 5 through inlet 6 to block up liquid outlet 7, then the coolant liquid can flow to the inside of cooling tube 11 in order to reduce the temperature of the inside wall of grinding cylinder 4, and fill hollow cavity 5 in order to reduce the temperature of cooling tube 11, cooling tube 11 reduces the temperature of grinding rod 8 through heat transfer plate 12, thereby realizes reducing the temperature of the inside raw materials of grinding cylinder 4.

Further, in order to facilitate the cooling liquid to enter the inside of the cooling pipe 11, the nano sand mill further includes a liquid guide plate 14, the liquid guide plate 14 is obliquely disposed inside the cooling pipe 11, a gap is disposed between a first end of the liquid guide plate 14 and a first end of the cooling pipe 11, and a second end of the liquid guide plate 14 is disposed inside the hollow cavity 5.

In some embodiments, as shown in fig. 1, the nano sand mill further includes a controller 15, the controller 15 is disposed on the driving device 1 and electrically connected to the driving device 1, the controller 15 is configured to control the driving device 1, and the driving device 1 drives the grinding rod 8 to rotate, so as to grind the raw material inside the grinding cylinder 4.

In some embodiments, as shown in fig. 3, the nano sand mill further includes a first temperature sensor 16, wherein the first temperature sensor 16 is disposed on a side wall of the hollow cavity 5 close to the grinding rod 8 and electrically connected to the controller 15, and is configured to detect a temperature value of the side wall of the hollow cavity 5 close to the grinding rod 8 and send the temperature value to the controller 15, so as to measure the temperature of the raw material inside the grinding cylinder 4.

In some of the embodiments, in the case that the controller 15 detects that the temperature value of the sidewall of the grinding cylinder 4 is greater than the first temperature threshold value through the first temperature sensor 16, the staff member may add the cooling liquid to the inside of the hollow cavity 5 to cool the raw material inside the grinding cylinder 4. Wherein the first temperature threshold is used for indicating that the internal temperature of the grinding cylinder 4 is easy to damage the raw material in the grinding cylinder 4.

Further, as shown in fig. 3 to 4, the nano sand mill further includes a liquid inlet pipe 17, a coiled pipe 18, a liquid outlet pipe 19, and a peristaltic pump 20.

The liquid inlet pipe 17 is arranged inside the grinding cylinder 4, a first end of the liquid inlet pipe 17 is connected with the liquid inlet 6, and the liquid inlet pipe 17 is used for conveying cooling liquid to the inside of the hollow cavity 5; a first end of the coiled pipe 18 is connected with a second end of the liquid inlet pipe 17, and the coiled pipe 18 is used for cooling the cooling liquid; the liquid outlet pipe 19 is arranged inside the grinding cylinder 4, a first end of the liquid outlet pipe 19 is connected with a second end of the coiled pipe 18, a second end of the liquid outlet pipe 19 is connected with the liquid outlet 7, and the liquid outlet pipe 19 is used for receiving cooling liquid flowing out of the liquid outlet 7 and then conveying the cooling liquid to the inside of the coiled pipe 18 for cooling; the peristaltic pump 20 is disposed on the liquid outlet pipe 19 and electrically connected to the controller 15, and the peristaltic pump 20 is configured to deliver the cooling liquid from the liquid outlet pipe 19 to the liquid inlet pipe 17, so as to achieve recycling of the cooling liquid.

Specifically, under the condition that the temperature of the coolant in the hollow cavity 5 and the inside of the cooling tube 11 is high and the coolant needs to be cooled, the controller 15 may control to start the peristaltic pump 20 to pump the coolant out of the liquid outlet 7, and after the coolant is cooled by the serpentine tube 18, the peristaltic pump 20 delivers the coolant to the liquid inlet tube 17, so that the coolant enters the inside of the hollow cavity 5 and the inside of the cooling tube 11 again through the liquid inlet 6.

Further, nanometer sand mill still includes solenoid valve 22, and solenoid valve 22 sets up in drain pipe 19 to with controller 15 electric connection, solenoid valve 22 are used for blockking up liquid outlet 7, avoid the low coolant liquid of temperature to enter into drain pipe 19, so that peristaltic pump 20 continues to work, causes the energy waste.

Wherein, under the condition that the staff separates feed liquor pipe 17 and inlet 6 in order to add the coolant liquid to the inside of hollow cavity 5, controller 15 also can control and close solenoid valve 22 to make the coolant liquid can fill hollow cavity 5 and cooling tube 11 completely, avoid the coolant liquid to enter drain pipe 19 and coiled pipe 18 and take place to leak from feed liquor pipe 17.

Further, the nanometer sand mill also comprises a cooling box 23, the cooling box 23 is used for installing the coiled pipe 18, the coiled pipe 18 penetrates through the side wall of the cooling box 23 to be connected with the liquid outlet pipe 19, and the cooling box 23 is used for cooling the coiled pipe 18.

The cooling tank 23 is filled with cold water.

Further, the nanometer sand mill also comprises a water cooler 24, wherein a water outlet of the water cooler 24 is communicated with the cooling tank 23 through a pipeline and is electrically connected with the controller 15, and the water cooler is used for conveying cold water to the inside of the cooling tank 23 through the controller 15 of the controller 15.

Further, as shown in fig. 3, the nano sand mill further includes a second temperature sensor 21, wherein the second temperature sensor 21 is disposed on a side wall of the hollow cavity 5 far away from the grinding rod 8, and is electrically connected to the controller 15, and is configured to measure a temperature value of the cooling liquid inside the hollow cavity 5 and send the temperature value to the controller 15.

Under the condition that controller 15 detects the temperature value of coolant liquid through second temperature sensor 21 and is greater than the second temperature threshold value, peristaltic pump 20 can be opened in controller 15 control to make the inside coolant liquid of cavity 5 and the inside coolant liquid of cooling tube 11 enter into the inside of coiled pipe 18 through liquid outlet 7, in order to cool down the coolant liquid, avoid the higher raw materials that can't cool down the grinding cylinder 4 inside of temperature of coolant liquid. Wherein the second temperature threshold is used for indicating that the temperature of the cooling liquid can not lower the temperature of the internal raw material of the grinding cylinder 4.

Further, nanometer sand mill still includes a plurality of heating panels 25, and grinding vessel 4 is established to a plurality of heating panels 25 interval cover for increase heat radiating area is in order to dispel the heat to the inside coolant liquid of cavity body 5.

When the nanometer sand mill of the utility model is used, under the condition that no cooling liquid is arranged inside the hollow cavity 5, if the grinding cylinder 4 needs to be cooled, the worker separates the liquid inlet pipe 17 from the liquid inlet 6, closes the electromagnetic valve 22, then, the staff adds the cooling liquid into the hollow cavity 5 from the liquid inlet 6, so that the cooling liquid fills the hollow cavity 5 and the cooling pipe 11, in case the second temperature sensor 21 detects that the temperature of the cooling liquid inside the hollow cavity 5 reaches the second temperature threshold, the controller 15 controls the electromagnetic valve 22 to open so that the cooling liquid enters the liquid outlet pipe 19 and the inside of the coil pipe 18 to cool the cooling liquid, meanwhile, the controller 15 controls the peristaltic pump 20 to be started to convey the cooled cooling liquid to the liquid inlet pipe 17, and the cooling liquid flows back to the inside of the hollow cavity 5 and the cooling pipe 11 again to cool down the inside of the grinding cylinder 4.

In addition, under the condition that the coolant is in the hollow cavity 5, if the controller 15 detects that the temperature value of the inner wall of the grinding cylinder 4 is greater than the first temperature threshold value through the first temperature sensor 16 and detects that the temperature of the coolant is greater than the second temperature threshold value through the second temperature sensor 21, the controller 15 controls to open the electromagnetic valve 22 and the peristaltic pump 20 at the moment, so that the coolant in the hollow cavity 5 is conveyed to the inside of the coiled pipe 18 for cooling, and the cooled coolant is conveyed to the inside of the hollow cavity 5 again through the peristaltic pump 20 to cool the grinding cylinder 4.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A nanometer sand mill with novel cooling body, includes drive arrangement (1), its characterized in that still includes:

the sealing seat (2) is sleeved on the output shaft (3) of the driving device (1);

the grinding cylinder (4) is connected with the sealing seat (2) in a sealing mode, a hollow cavity (5) is arranged on the side wall of the grinding cylinder (4), a liquid outlet (7) is formed in the lower side of the first end of the hollow cavity (5), a liquid inlet (6) is formed in the upper side of the second end of the hollow cavity (5), and the output shaft (3) is arranged inside the grinding cylinder (4);

the grinding rod (8) is arranged inside the grinding cylinder (4), the first end of the grinding rod (8) is fixedly connected with the output shaft (3), and the second end of the grinding rod (8) is provided with a cooling groove (9);

the two rotating bearings (10) are arranged inside the cooling tank (9) at intervals, and the outer ring of each rotating bearing (10) is fixedly connected with the inner side wall of the cooling tank (9);

the cooling pipe (11) is arranged inside the cooling groove (9), an opening of the cooling pipe (11) is communicated with the hollow cavity (5) to be arranged, and the two rotating bearings (10) are sleeved with the cooling pipe (11) to be arranged;

the first ends of the heat transfer plates (12) are arranged on the outer side wall of the cooling pipe (11) at intervals along the circumferential direction of the cooling pipe (11) and are positioned between the two rotating bearings (10), and the second ends of the heat transfer plates (12) are arranged close to the inner side wall of the cooling groove (9);

the bearing sealing rings (13) are arranged on two sides of each rotating bearing (10).

2. The nano-sand mill as recited in claim 1, further comprising:

drain board (14), drain board (14) slope set up in the inside of cooling tube (11), the first end of drain board (14) with be provided with the interval between the first end of cooling tube (11), the second end of drain board (14) set up in the inside of cavity (5).

3. The nano-sand mill as recited in claim 1, further comprising:

the controller (15) is arranged on the driving device (1), and the controller (15) is electrically connected with the driving device (1).

4. The nano-sand mill as recited in claim 3, further comprising:

the first temperature sensor (16), first temperature sensor (16) set up in the cavity (5) is close to a lateral wall of grinding rod (8), and with controller (15) electric connection.

5. The nano-sand mill as recited in claim 3, further comprising:

the liquid inlet pipe (17) is arranged inside the grinding cylinder (4), and the first end of the liquid inlet pipe (17) is connected with the liquid inlet (6);

a coiled pipe (18), wherein the coiled pipe (18) is arranged outside the grinding cylinder (4), and a first end of the coiled pipe (18) is connected with a second end of the liquid inlet pipe (17);

the liquid outlet pipe (19) is arranged inside the grinding cylinder (4), the first end of the liquid outlet pipe (19) is connected with the second end of the coiled pipe (18), and the second end of the liquid outlet pipe (19) is connected with the liquid outlet (7);

the peristaltic pump (20), the peristaltic pump (20) set up in drain pipe (19), and with controller (15) electric connection.

6. The nano-sand mill as recited in claim 5, further comprising:

the electromagnetic valve (22), the electromagnetic valve (22) set up in drain pipe (19), and with controller (15) electric connection.

7. The nano-sand mill as recited in claim 5, further comprising:

the cooling box (23) is provided with the coiled pipe (18), and the coiled pipe (18) penetrates through the side wall of the cooling box (23) and is connected with the liquid outlet pipe (19).

8. The nano-sand mill as recited in claim 7, further comprising:

and a water outlet of the water cooler (24) is communicated with the cooling tank (23) through a pipeline and is electrically connected with the controller (15).

9. The nano-sand mill as recited in claim 3, further comprising:

the second temperature sensor (21), second temperature sensor (21) set up in keeping away from of cavity (5) a lateral wall of grinding rod (8), and with controller (15) electric connection.

10. The nano-sand mill as recited in claim 1, further comprising:

the grinding cylinder (4) is sleeved on the plurality of heat dissipation plates (25) at intervals.

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