Fine grinding device for refractory material production

Abstract

The invention relates to the field of refractory material grinding devices, in particular to a fine grinding device for refractory material production, which comprises a grinding tank with a feed port and a discharge port, a grinding disc device arranged in the grinding tank and a grinding roller device matched with a grinding disc, an air inlet is formed in the side wall of the grinding tank, and a guide air duct is arranged at the output end of the air inlet. The output end of the guide air channel points to the edge position of the grinding disc, a ventilation hole is formed in the center position of the grinding disc, a filter screen is arranged on the ventilation hole, and a high-pressure fan used for exhausting air in the grinding tank to the outside is arranged on the discharging opening. The airflow flowing in the specific direction is generated in the grinding tank to drive powdery raw materials to be discharged from the discharging port, so that unground particles can be continuously ground, and the raw materials meeting the grinding requirement are driven by the airflow to be discharged from the discharging port.

Description

Technical Field

[0001] The invention relates to the technical field of refractory material grinding devices, in particular to a fine grinding device for refractory material production. Background Art

[0002] The grinding process of refractory materials is to use a crusher to squeeze and crush large pieces of raw materials to form small particles of raw materials, and then use a grinding device to further grind the small particles of raw materials to form them into powder. The problem with the prior art is that the existing grinding devices mostly use the gravity of the raw materials after grinding to fall into the discharge port when grinding small particles of raw materials through grinding rollers and grinding disks. During the grinding process, many small particles often fall into the discharge port through the gap between the grinding disk and the grinding roller, and the raw materials that do not reach the grinding accuracy are discharged, resulting in the need to filter out the small particles of the powdered raw materials before they can be used. Summary of the invention

[0003] In view of the above problems, the purpose of the present invention is to provide a high-pressure fan to generate an airflow in a specific direction inside the grinding tank to drive the powdered raw materials to be discharged from the discharge port, thereby enabling the unground particles to be continuously ground and the raw materials that meet the grinding requirements to be driven by the airflow to be discharged from the discharge port.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a fine grinding device for refractory material production, comprising a grinding jar with a feed port and a discharge port, a grinding disc device arranged inside the grinding jar and a grinding roller device cooperating with the grinding disc, the grinding disc device comprising a grinding disc horizontally projected as a circle and a first driving assembly arranged below the grinding disc for driving the grinding disc to rotate, the grinding roller device comprising a grinding roller arranged near the edge of the grinding disc and a second driving assembly arranged on the grinding jar for driving the grinding roller to rotate, an air inlet is provided on the side wall of the grinding jar, a guide air duct is provided at the output end of the air inlet, the output end of the guide air duct points to the edge of the grinding disc, a ventilation hole is provided at the central position of the grinding disc, a filter is provided on the ventilation hole, and a high-pressure fan for discharging the air inside the grinding jar to the outside is provided on the discharge port.

[0005] The beneficial effects of the present invention are as follows: the material is poured into the grinding jar from the feed port, the material falls onto the top of the grinding disk, the first driving component drives the grinding disk to rotate, the material moves to the edge of the grinding disk under the action of centrifugal force, the second driving component drives the grinding roller to grind the material at the edge of the grinding disk, a high-pressure fan is arranged on the discharge port, an airflow flowing in a specific direction can be formed inside the grinding jar, so that the raw material ground into powder is discharged from the grinding jar along with the airflow, wherein the airflow direction inside the grinding jar is, in sequence, the air inlet, the upper surface at the edge of the grinding disk, the vent, and the discharge port, the raw material particles that do not meet the grinding requirements cannot be driven by the airflow due to their large gravity, and are moved to the edge of the grinding disk under the influence of the centrifugal force of the grinding disk for repeated grinding.

[0006] In order to improve the grinding efficiency.

[0007] As a further improvement of the above technical solution, there are multiple grinding roller devices, and the multiple grinding roller devices are evenly distributed circumferentially along the axis of the grinding disc.

[0008] The beneficial effect of this improvement is that a plurality of grinding roller devices grind the material on the grinding disc simultaneously, thereby fully improving the grinding efficiency.

[0009] In order to prevent the ground material discharged from the grinding jar from being mixed with dust in the air.

[0010] As a further improvement of the above technical solution, a dustproof net is provided at the input end of the air inlet.

[0011] The beneficial effect of this improvement is that the dust-proof net can prevent dust in the air from entering the grinding jar and mixing with the grinding material.

[0012] In order to enable the grinding disc to better guide the upper material.

[0013] As a further improvement of the above technical solution, the grinding disc comprises an arc-shaped limiting portion, an extrusion recessed portion, a conical guide portion and a ventilation hole from the edge position to the center position, and the extrusion recessed portion is in contact with the grinding roller.

[0014] The beneficial effects of this improvement are as follows: the arc-shaped limiting portion can better guide the gas in the guide air duct so that it flows along the upper surface of the grinding disc; the conical guiding portion can better guide the material fed from the feed port in the initial stage of grinding so that the material moves toward the edge; in the discharge stage, it can better prevent small particles of material from being driven by the airflow to flow toward the ventilation holes; the extrusion recess can better cooperate with the extrusion roller to fully grind the material.

[0015] In order to make the arc-shaped limiting portion better guide the airflow.

[0016] As a further improvement of the above solution, the arc angle of the arc-shaped limiting portion is 90 degrees.

[0017] The beneficial effect of this improvement is that the arc of the arc-shaped limiting portion is degrees, which can better guide the airflow in the guide air duct.

[0018] In order to direct the airflow inside the grinding jar, avoid the airflow entering the grinding jar from the feed inlet.

[0019] As a further improvement of the above solution, a sealing cover is provided on the feed port, and the axis of the feed port is the same as the axis of the grinding disc.

[0020] The beneficial effect of this improvement is that after the material is poured into the grinding jar, the sealing cover is used to seal the feed port, so that the airflow inside the grinding jar can only enter the interior of the grinding jar from the air inlet.

[0021] In order to ensure that both the grinding disc device and the grinding device can operate stably.

[0022] As a further improvement of the above scheme, the first driving component is a first motor, and a rotating plate is provided at the output end of the first motor. A plurality of supporting rods are evenly spaced on the upper surface of the rotating plate, and the tops of the plurality of supporting rods are connected to the bottom of the grinding disc; the second driving component is a second motor, and the second motor is provided outside the grinding jar, and the output end of the second motor extends to the inside of the grinding jar and is connected to the grinding roller, and the second motor is connected to the enclosure of the outer wall of the grinding jar, and a supporting leg is provided at the bottom of the enclosure.

[0023] The beneficial effect of this improvement is that the support legs and the enclosure plate can stably support the grinding roller device, and the second motor is connected to the inner wall of the grinding tank to stably support the grinding disc device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a front view of the present invention;

[0026] Figure 3 is a cross-sectional view of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the grinding disc of the present invention;

[0028] Figure 5 For the present invention Figure 4 sectional view of .

[0029] In the figure: 1. grinding jar; 2. grinding disc; 3. second motor; 4. grinding roller; 5. first motor; 6. guide air duct; 7. ventilation hole; 8. filter screen; 9. feed port; 10. sealing cover; 11. discharge port; 12. high-pressure fan; 13. enclosure; 14. support leg; 15. dustproof net; 16. rotating plate; 17. support rod. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0031] like Figure 1-Figure 5As shown, a fine grinding device for refractory material production includes a grinding tank 1 with a feed port 9 and a discharge port 11, a grinding disc device arranged inside the grinding tank 1, and a grinding roller device matched with the grinding disc 2, the grinding disc device includes a grinding disc 2 with a horizontal projection of a circle and a first driving component arranged below the grinding disc 2 for driving the grinding disc 2 to rotate, the grinding roller device includes a grinding roller 4 arranged near the edge of the grinding disc 2 and a second driving component arranged on the grinding tank 1 for driving the grinding roller 4 to rotate, an air inlet is provided on the side wall of the grinding tank 1, a guide air duct 6 is provided at the output end of the air inlet, the output end of the guide air duct 6 points to the edge of the grinding disc 2, a ventilation hole 7 is provided at the center of the grinding disc 2, The ventilation hole 7 is provided with a filter screen 8, and the discharge port 11 is provided with a high-pressure fan 12 for discharging the air inside the grinding jar 1 to the outside. The material is poured into the grinding jar 1 from the feed port 9, and the material falls on the top of the grinding disc 2. The first driving component drives the grinding disc 2 to rotate, and the material moves to the edge of the grinding disc 2 under the action of centrifugal force. The second driving component drives the grinding roller 4 to grind the material at the edge of the grinding disc 2. The discharge port 11 is provided with a high-pressure fan 12, which can form an airflow flowing in a specific direction inside the grinding jar 1, so that the raw material ground into powder is discharged from the grinding jar 1 along with the airflow, wherein the airflow direction inside the grinding jar 1 is, in sequence, the air inlet, the upper surface at the edge of the grinding disc 2, the ventilation port, and the discharge port 11. The raw material particles that do not meet the grinding requirements cannot be driven by the airflow due to their large gravity, and are affected by the centrifugal force of the grinding disc 2 and move to the edge of the grinding disc 2 for repeated grinding. The number of the grinding roller devices is multiple, and the multiple grinding roller devices are evenly distributed circumferentially along the axis of the grinding disc 2. The multiple grinding roller devices grind the material on the grinding disc 2 at the same time, which fully improves the grinding efficiency. The input end of the air inlet is provided with a dustproof net 15, which can prevent dust in the air from entering the interior of the grinding tank 1 and mixing with the ground material. The grinding disc 2 is composed of an arc-shaped limiting portion, an extrusion recessed portion, a conical guide portion and a ventilation hole 7 from the edge position to the central position. The extrusion recessed portion is in contact with the grinding roller 4, and the arc-shaped limiting portion can be more The gas in the guide air duct 6 can be better guided to flow along the upper surface of the grinding disc 2. The conical guide portion can better guide the material put in from the feed port 9 in the initial stage of grinding, so that the material moves toward the edge. In the discharge stage, the material with small particles can be better driven by the airflow to the ventilation hole 7. The extrusion recess can better cooperate with the extrusion roller to fully grind the material. The arc of the arc-shaped limit portion is 90 degrees. The arc of the arc-shaped limit portion is 90 degrees, which can better guide the airflow of the guide air duct 6. A sealing cover 10 is provided on the feed port 9. The axis of the feed port 9 is the same as the axis of the grinding disc 2. After the material is poured into the grinding tank 1, the sealing cover 10 is used to close the feed port 9.The airflow inside the grinding jar 1 can only enter the grinding jar 1 from the air inlet. The first driving component is a first motor 5. A rotating plate 16 is provided at the output end of the first motor 5. A plurality of support rods 17 are evenly spaced on the upper surface of the rotating plate 16. The tops of the plurality of support rods 17 are connected to the bottom of the grinding disc 2. The second driving component is a second motor 3. The second motor 3 is provided outside the grinding jar 1. The output end of the second motor 3 extends to the inside of the grinding jar 1 and is connected to the grinding roller 4. The second motor 3 is connected to the enclosure 13 of the outer wall of the grinding jar 1. The bottom of the enclosure 13 is provided with a supporting leg 14. The supporting leg 14 and the enclosure 13 can stably support the grinding roller device. The second motor 3 is connected to the inner wall of the grinding jar 1 and can stably support the grinding disc device.

[0032] The working principle of the present invention is as follows: the material is poured into the grinding jar 1 from the feed port 9, and the material falls onto the top of the grinding disc 2. The filter screen 8 can prevent the material from falling directly from the ventilation hole 7, so that the material is maintained on the top of the grinding disc 2. The first driving component drives the grinding disc 2 to rotate, and the material moves to the edge of the grinding disc 2 under the action of centrifugal force. The second driving component drives the grinding roller 4 to grind the material at the edge of the grinding disc 2. A high-pressure fan 12 is provided on the discharge port 11, which can form an airflow flowing in a specific direction inside the grinding jar 1, so that the raw material ground into powder is discharged from the grinding jar 1 along with the airflow, wherein the airflow direction inside the grinding jar 1 is, in sequence, the air inlet, the upper surface at the edge of the grinding disc 2, the ventilation port, and the discharge port 11. The raw material particles that do not meet the grinding requirements cannot be driven by the airflow due to their large gravity, and are affected by the centrifugal force of the grinding disc 2 and move to the edge of the grinding disc 2 for repeated grinding.

[0033] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A fine grinding device for refractory material production, comprising a grinding pot (1) having a feed inlet (9) and a discharge outlet (11), a grinding disc device arranged inside the grinding pot (1) and a grinding roller device matched with the grinding disc (2), wherein the grinding disc device comprises a grinding disc (2) horizontally projected as a circle and a first driving assembly arranged below the grinding disc (2) for driving the grinding disc (2) to rotate, the grinding roller device comprises a grinding roller (4) arranged near the edge of the grinding disc (2) and a second driving assembly arranged on the grinding pot (1) for driving the grinding roller (4) to rotate, characterized in that: An air inlet is provided on the side wall of the grinding jar (1); a guide air duct (6) is provided at the output end of the air inlet; the output end of the guide air duct (6) points to the edge of the grinding disc (2); a ventilation hole (7) is provided at the center of the grinding disc (2); a filter screen (8) is provided on the ventilation hole (7); and a high-pressure fan (12) is provided on the discharge port (11) for discharging air inside the grinding jar (1) to the outside.

2. A fine grinding device for refractory material production according to claim 1, characterized in that: There are multiple grinding roller devices, and the multiple grinding roller devices are evenly distributed in the circumferential direction along the axis of the grinding disc (2).

3. The fine grinding device for refractory material production according to claim 1, characterized in that: A dustproof net (15) is provided at the input end of the air inlet.

4. The fine grinding device for refractory material production according to claim 1, characterized in that: The grinding disc (2) comprises an arc-shaped limiting portion, an extrusion recessed portion, a conical guiding portion and a ventilation hole (7) in sequence from the edge position to the central position, and the extrusion recessed portion is in contact with the grinding roller (4).

5. A fine grinding device for refractory material production according to claim 4, characterized in that: The arc angle of the arc-shaped limiting portion is 90 degrees.

6. The fine grinding device for refractory material production according to claim 1, characterized in that: The feed port (9) is provided with a sealing cover (10), and the axis of the feed port (9) is the same as the axis of the grinding disc (2).

7. The fine grinding device for refractory material production according to claim 1, characterized in that: The first driving component is a first motor (5), the first motor (5) is connected to the inner wall of the grinding jar (1), a rotating plate (16) is arranged at the output end of the first motor (5), a plurality of support rods (17) are evenly spaced on the upper surface of the rotating plate (16), the tops of the plurality of support rods (17) are connected to the bottom of the grinding disc (2), the second driving component is a second motor (3), the second motor (3) is arranged outside the grinding jar (1), the output end of the second motor (3) extends to the inside of the grinding jar (1) and is connected to the grinding roller (4), the second motor (3) is connected to a panel (13) on the outer wall of the grinding jar (1), and a supporting leg (14) is arranged at the bottom of the panel (13).

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