Jet mill with cooling structure

Abstract

The utility model discloses a jet mill with a cooling structure, which comprises a mill, an inner cylinder is arranged in the mill, a cooling tank is arranged between the mill and the inner cylinder, a top cover is sealed at the top of the mill, a first motor is arranged at the top of the top cover, and an output shaft of the first motor rotatably penetrates through the top cover and then is connected with a stirring shaft in the inner cylinder. A cooling assembly is arranged in the pulverizer and comprises a second water pump and a recovery pipe, the water tank is arranged on one side of the pulverizer, the first water pump is arranged at the top of the water tank, and the water inlet end of the first water pump communicates with the water tank through a pipeline; cooling water is sprayed to the surface of the inner cylinder through the multiple nozzles on the surface of the coiled pipe, the sprayed water forms water flow after making contact with the surface of the inner cylinder, the convection heat exchange effect can be enhanced through flowing of the water flow, and therefore heat can be rapidly taken away along with flowing of the water flow, and the cooling speed of the airflow type pulverizer is greatly increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to airflow pulverizer technical field, concretely relates to an airflow pulverizer with cooling structure. BACKGROUND

[0002] Airflow pulverizer is supermicro pulverization to material by high speed airflow, can divide into disc type airflow pulverizer and oval airflow pulverizer, material is repeatedly collided, grinds, shears and pulverizes at the intersection of multiple high pressure airflow, and a large amount of heat is generated in material mutual collision and airflow pulverizer inner wall friction, influences the service life and working efficiency of equipment for a long time, needs to be cooled by corresponding cooling equipment.

[0003] The existing airflow pulverizer cooling equipment is generally water cooling circulation type cooling structure, the serpentine pipe is arranged on the inner wall of the airflow pulverizer, the cooling water in the cooling tank is pumped into the serpentine pipe by the water pump, the serpentine pipe contacts the inner wall of the airflow pulverizer, and the heat of the airflow pulverizer can be removed by heat exchange of the cooling water in the serpentine pipe, but since the heat exchange between the cooling water and the airflow pulverizer is carried out by pipe wall contact, the heat transfer needs to pass through multiple layers of medium such as the pulverizer inner wall and the serpentine pipe wall, compared with the direct contact type cooling mode, the heat transfer path is longer, and in the case that the airflow pulverizer needs to be cooled quickly, the cooling mode cannot quickly reduce the temperature inside the equipment, thereby affecting the next production operation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an airflow pulverizer with cooling structure to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an airflow pulverizer with cooling structure, comprising:

[0006] The pulverizer is provided with an inner cylinder, and a cooling groove is arranged between the pulverizer and the inner cylinder, the top of the pulverizer is sealed with a top cover, and the top cover is provided with a first motor, the output shaft of the first motor is connected with a stirring shaft in the inner cylinder after rotating through the top cover, and the pulverizer is provided with a cooling assembly, and the cooling water in the water tank is pumped into the serpentine pipe through the first water pump of the cooling assembly, so that the spray head on the surface of the serpentine pipe sprays the cooling water to the surface of the inner cylinder.

[0007] Preferably, the cooling assembly comprises a second water pump and a recovery pipe, the water tank is arranged on one side of the pulverizer, the first water pump is arranged on the top of the water tank, the water inlet end of the first water pump is connected with the water tank through a pipeline, and the water outlet end is connected with the serpentine pipe through a water inlet pipe.

[0008] Preferably, the serpentine pipe is annularly wound on the surface of the inner cylinder, the spray head is provided with a plurality of groups, the plurality of groups of spray heads are uniformly distributed on the surface of the serpentine pipe, the second water pump is arranged in the water tank, one end of the second water pump is connected with the recovery pipe, and the other end of the recovery pipe penetrates through the water tank and is connected with the cooling tank of the pulverizer.

[0009] Preferably, the surface of the water tank is provided with a refrigerating device, and the top of the water tank is connected with a water inlet pipe joint.

[0010] Preferably, the surface of the stirring shaft is connected with a plurality of stirring blades, and the bottom of the stirring shaft is connected with a stirring cross bar.

[0011] Preferably, the bottom of the pulverizer is provided with a discharge pipe, one end of the discharge pipe is connected with the inner cylinder, a rotating shaft is rotatably connected in the discharge pipe, and the surface of the rotating shaft is connected with two groups of stirring blades.

[0012] Preferably, the surface of the discharge pipe is provided with a second motor, and the output shaft of the second motor is rotatably connected with the rotating shaft after penetrating through the discharge pipe.

[0013] Preferably, the surface of the top cover is provided with a feeding cylinder, a feeding shaft is rotatably connected in the feeding cylinder, the surface of the feeding shaft is connected with a threaded blade, the surface of the feeding cylinder is provided with a third motor, the output shaft of the third motor is rotatably connected with the feeding shaft after penetrating through the feeding cylinder, one end of the feeding cylinder is connected with the inner cylinder, and the other end is provided with a feeding port.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) the material to be processed is poured into the feeding port, and the third motor is started to work, the output shaft of the third motor drives the feeding shaft and the threaded blade to rotate, the material in the feeding cylinder is conveyed, and the material is conveyed into the inner cylinder through one end of the feeding cylinder, and the inert gas is filled into the inner cylinder, then the first motor is started to drive the stirring shaft to rotate, the material in the inner cylinder is high-speed stirred and pulverized through the stirring blades on the surface of the stirring shaft, then the control valve on the surface of the discharge pipe is opened, the pulverized material can be discharged through the discharge pipe, and when the pulverized material is discharged through the discharge pipe, the second motor can be started, the output shaft of the second motor drives the rotating shaft to rotate, the rotating shaft drives the stirring blades to stir the pulverized material in the discharge pipe, so that the material in the discharge pipe is not blocked when discharging, the efficiency of discharging is not affected, and the material in the discharge pipe is smoothly discharged.

[0016] (2) in the material crushing process, the first water pump can be started to pump the cooling water in the water tank into the serpentine pipe through the water inlet pipe, and the cooling water is sprayed to the inner cylinder surface through the several spray heads on the surface of the serpentine pipe, and the sprayed water forms water flow after contacting the inner cylinder surface, and the flow of the water flow enhances the convection heat exchange effect, so that the heat is quickly taken away with the flow of the water flow, greatly improving the cooling speed of the airflow type crusher, and further improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the utility model;

[0018] Figure 2 It is a structure schematic view of the utility model inside;

[0019] Figure 3 It is a structure schematic view of the inner cylinder inside the utility model;

[0020] Figure 4 It is the plan view of the inner cylinder of the utility model.

[0021] In the drawing: 1, crusher; 2, inner cylinder; 3, cooling tank; 4, top cover; 5, first motor; 6, stirring shaft; 7, first water pump; 8, water tank; 9, serpentine pipe; 10, second water pump; 11, recovery pipe; 12, water inlet pipe; 13, spray head; 14, refrigerator; 15, water inlet pipe joint; 16, stirring blade; 17, stirring cross bar; 18, discharge pipe; 19, rotating shaft; 20, stirring blade; 21, second motor; 22, feed cylinder; 23, threaded blade; 24, third motor; 25, feed inlet; 26, feed shaft. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The utility model provides a kind of airflow crusher with cooling structure as shown in Figures 1-4 Including:

[0024] The pulverizer 1 is internally provided with an inner cylinder 2 and a cooling tank 3 between the pulverizer 1 and the inner cylinder 2, the top of the pulverizer 1 is sealed with a top cover 4, and the top cover 4 is provided with a first motor 5, the output shaft of the first motor 5 is connected with a stirring shaft 6 in the inner cylinder 2 after rotating through the top cover 4, the pulverizer 1 is provided with a cooling assembly, and the cooling water in a water tank 8 is pumped into a coiled pipe 9 by a first water pump 7 of the cooling assembly, so that the nozzles 13 on the surface of the coiled pipe 9 spray the cooling water to the surface of the inner cylinder 2.

[0025] The cooling assembly comprises a second water pump 10 and a recovery pipe 11, the water tank 8 is arranged on one side of the pulverizer 1, the first water pump 7 is arranged on the top of the water tank 8, the water inlet end of the first water pump 7 is connected with the water tank 8 through a pipeline, the water outlet end is connected with the coiled pipe 9 through a water inlet pipe 12, the cooling water in the water tank 8 is pumped into the coiled pipe 9 through the water inlet pipe 12 by the first water pump 7, and the cooling water is sprayed to the surface of the inner cylinder 2 by a plurality of nozzles 13 on the surface of the coiled pipe 9, so as to cool and cool the inner cylinder 2, the inner cylinder 2 is made of stainless steel, the stainless steel has high strength and toughness, can withstand thermal stress caused by temperature change during cooling process, is not easy to deform and has other problems, and the heat conduction performance of the stainless steel is relatively good, so that the cooling medium and the inner cylinder 2 can effectively exchange heat, thereby accelerating the cooling speed and improving the cooling efficiency.

[0026] The coiled pipe 9 is annularly wound on the surface of the inner cylinder 2, and the nozzles 13 are arranged in a plurality of groups, the plurality of groups of nozzles 13 are uniformly distributed on the surface of the coiled pipe 9, the second water pump 10 is arranged in the water tank 8, and one end of the second water pump 10 is connected with the recovery pipe 11, the other end of the recovery pipe 11 penetrates through the water tank 8 and is connected with the cooling tank 3 of the pulverizer 1, the water flows downward and then falls back into the cooling tank 3, at this time, the second water pump 10 is started, and the second water pump 10 pumps the water in the cooling tank 3 after heat exchange into the water tank 8 through the recovery pipe 11, so as to recycle and utilize the cooling water.

[0027] The surface of the water tank 8 is provided with a refrigeration device 14, and the top of the water tank 8 is connected with a water inlet pipe joint 15, the water inlet pipe joint 15 can be connected with an external water pipe to supplement water into the water tank 8 in time.

[0028] The surface of the stirring shaft 6 is connected with a plurality of stirring blades 16, and the bottom of the stirring shaft 6 is connected with a stirring cross rod 17, because the material is easy to deposit and accumulate at the bottom of the inner cylinder 2, when the stirring shaft 6 rotates, the stirring cross rod 17 can effectively stir the material at the bottom of the inner cylinder 2, so as to prevent the material at the bottom of the inner cylinder 2 from being accumulated for a long time and unable to participate in the overall mixing and stirring process, thereby improving the pulverizing effect of the material.

[0029] The bottom of the pulverizer 1 is provided with a discharge pipe 18, one end of the discharge pipe 18 is connected with the inner cylinder 2, a rotating shaft 19 is rotatably connected in the discharge pipe 18, two groups of stirring blades 20 are connected on the surface of the rotating shaft 19, a second motor 21 is arranged on the surface of the discharge pipe 18 and the output shaft of the second motor 21 is rotatably connected with the rotating shaft 19 after penetrating through the discharge pipe 18, the second motor 21 is started, the output shaft of the second motor 21 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives the stirring blades 20 to stir the pulverized material in the discharge pipe 18, so as to avoid the blockage of the discharge pipe 18 when the material is discharged, to affect the efficiency of the discharge, to ensure the smooth discharge of the material in the discharge pipe 18, and to help improve the production efficiency and product quality of the equipment.

[0030] The surface of the top cover 4 is provided with a feeding cylinder 22, a feeding shaft 26 is rotatably connected in the feeding cylinder 22, threaded blades 23 are connected on the surface of the feeding shaft 26, a third motor 24 is arranged on the surface of the feeding cylinder 22 and the output shaft of the third motor 24 is rotatably connected with the feeding shaft 26 after penetrating through the feeding cylinder 22, one end of the feeding cylinder 22 is communicated with the inner cylinder 2, and the other end is provided with a feeding port 25, the threaded blades 23 on the surface of the feeding shaft 26 can push the material forward with the rotation of the feeding shaft 26, when the third motor 24 is started, the feeding shaft 26 starts to rotate, the threaded blades 23 push the material forward, and the material entering the feeding cylinder 22 from the feeding port 25 is gradually pushed to the other end of the feeding cylinder 22, so as to ensure that the material enters the inner cylinder 2 more stably and uniformly, and to avoid the blockage or uneven distribution caused by the large amount of material suddenly entering the inner cylinder 2.

[0031] The airflow pulverizer with cooling structure, the material to be processed is poured into the feeding port 25, and the third motor 24 is started to work, the output shaft of the third motor 24 drives the feeding shaft 26 and the threaded blades 23 to rotate, the material in the feeding cylinder 22 is conveyed, and is conveyed into the inner cylinder 2 through one end of the feeding cylinder 22, and the inert gas is filled into the inner cylinder 2, then the first motor 5 is started to drive the stirring shaft 6 to rotate, the material in the inner cylinder 2 is high-speed stirred and pulverized by the stirring blades 16 on the surface of the stirring shaft 6, then the control valve on the surface of the discharge pipe 18 is opened, the pulverized material can be discharged through the discharge pipe 18, and when the pulverized material is discharged through the discharge pipe 18, the second motor 21 can be started, the output shaft of the second motor 21 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives the stirring blades 20 to stir the pulverized material in the discharge pipe 18, so as to avoid the blockage of the discharge pipe 18 when the material is discharged, to affect the efficiency of the discharge, to ensure the smooth discharge of the material in the discharge pipe 18.

[0032] In the material crushing process, the first water pump 7 can be started to pump the cooling water in the water tank 8 into the serpentine pipe 9 through the water inlet pipe 12, and the cooling water is sprayed to the surface of the inner cylinder 2 through the several spray heads 13 on the surface of the serpentine pipe 9, and the sprayed water forms a water flow after contacting the surface of the inner cylinder 2, and the flow of the water flow enhances the convection heat exchange effect, so that the heat is quickly taken away with the flow of the water flow, greatly improving the cooling speed of the airflow type crusher 1, and the water flow flows downward and falls into the cooling tank 3, at this time the second water pump 10 is started, the second water pump 10 drives the water in the cooling tank 3 after heat exchange into the water tank 8 through the recovery pipe 11, so as to realize the circulation of the cooling water, avoid waste, and the temperature sensor (not shown in the figure) in the water tank 8 detects the temperature of the cooling water, when the temperature of the cooling water is higher than 25℃, the refrigerator 14 can be started to refrigerate the cooling water, and when the temperature of the cooling water is lower than 10℃, the refrigerator 14 is closed, greatly reducing the operation cost.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. An air jet mill having a cooling structure, characterized by, Include: The pulverizer (1) is provided with an inner cylinder (2) and a cooling tank (3) between the pulverizer (1) and the inner cylinder (2), the top of the pulverizer (1) is sealed with a top cover (4), and the top of the top cover (4) is provided with a first motor (5), the output shaft of the first motor (5) is connected with the stirring shaft (6) in the inner cylinder (2) after rotating through the top cover (4), the pulverizer (1) is provided with a cooling assembly, the cooling water in the water tank (8) is pumped into the coiled pipe (9) by the first water pump (7) of the cooling assembly, so that the spray head (13) on the surface of the coiled pipe (9) sprays cooling water to the surface of the inner cylinder (2).

2. The jet mill with a cooling structure according to claim 1, characterized in that: The cooling assembly includes a second water pump (10) and a recovery pipe (11), the water tank (8) is arranged on one side of the pulverizer (1), the first water pump (7) is arranged on the top of the water tank (8), and the water inlet end of the first water pump (7) is connected with the water tank (8) through a pipeline, and the water outlet end is connected with the coiled pipe (9) through the water inlet pipe (12).

3. The jet mill with a cooling structure according to claim 2, characterized in that: The coiled pipe (9) is annularly wound on the surface of the inner cylinder (2), and the spray head (13) is provided with a plurality of groups, and the plurality of groups of spray heads (13) are evenly distributed on the surface of the coiled pipe (9), the second water pump (10) is arranged in the water tank (8), one end of the second water pump (10) is connected with the recovery pipe (11), and the other end of the recovery pipe (11) penetrates the water tank (8) and is connected with the cooling tank (3) of the pulverizer (1).

4. The jet mill with a cooling structure according to claim 1, characterized in that: The surface of the water tank (8) is provided with a refrigerator (14), and the top of the water tank (8) is connected with a water inlet pipe joint (15).

5. The jet mill with a cooling structure according to claim 1, characterized in that: The surface of the stirring shaft (6) is connected with a plurality of stirring blades (16), and the bottom of the stirring shaft (6) is connected with a stirring cross bar (17).

6. The jet mill with a cooling structure according to claim 1, characterized in that: The bottom of the pulverizer (1) is provided with a discharge pipe (18), one end of the discharge pipe (18) is connected with the inner cylinder (2), the discharge pipe (18) is rotatably connected with a rotating shaft (19), and the surface of the rotating shaft (19) is connected with two groups of stirring blades (20).

7. The jet mill with a cooling structure according to claim 6, characterized in that: The surface of the discharge pipe (18) is provided with a second motor (21), and the output shaft of the second motor (21) is connected with the rotating shaft (19) after rotating through the discharge pipe (18).

8. The jet mill with a cooling structure according to claim 6, characterized in that: The surface of the top cover (4) is provided with a feeding cylinder (22), the feeding cylinder (22) is rotatably connected with a feeding shaft (26), the surface of the feeding shaft (26) is connected with a threaded blade (23), the surface of the feeding cylinder (22) is provided with a third motor (24), the output shaft of the third motor (24) is connected with the feeding shaft (26) after rotating through the feeding cylinder (22), one end of the feeding cylinder (22) is connected with the inner cylinder (2), and the other end is provided with a feeding port (25).

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