Special grading cyclone matched with tower mill

Abstract

The utility model belongs to the technical field of special grading equipment matched with tower mills, and particularly relates to a special grading cyclone matched with a tower mill, which comprises a cylinder, a feeding pipe is fixedly connected to the circumferential surface of the left side of the cylinder and communicated with the cylinder, and a conical barrel is fixedly connected to the lower end of the cylinder and communicated with the feeding pipe. The lower end of the conical barrel is fixedly connected with an underflow pipe; an overflow pipe is slidably connected into the cylinder, the overflow pipe downwards extends into the cylinder, the overflow pipe upwards extends to the upper end of the cylinder, and a lifting adjusting assembly is mounted on the circumferential surface of the overflow pipe and used for adjusting the height of the overflow pipe. The cyclone has the function of adjusting the depth of the overflow pipe extending into the cyclone, so that the tangential speed, the overflow product and the separation precision of materials can be reasonably changed within a certain range.

Description

Technical Field

[0001] The utility model belongs to the technical field of special equipment for matching and grading a tower mill, in particular to a special cyclone for matching and grading a tower mill. Background Art

[0002] The cyclone is a commonly used classification equipment in the ore dressing plant, especially in the grinding operation, it forms a closed circuit with the ball mill. The cyclone can classify the discharge of the ball mill into coarse and fine particles, and the fine particles enter the subsequent separation process, and the coarse particles return to the ball mill for re-grinding. In recent years, the tower mill, as a new type of mill, has been applied to the coarse concentrate re-grinding process of the ore dressing plant, and has the advantage of higher grinding fineness than the traditional ball mill.

[0003] In the existing cyclone dedicated to the tower mill, the depth of the overflow pipe inserted into the cyclone is fixed and inconvenient to adjust. Summary of the invention

[0004] The utility model aims to provide a special cyclone for grading a tower mill, which has the function of adjusting the depth of the overflow pipe extending into the cyclone, so as to reasonably change the tangential velocity of the material, the overflow product and the sorting accuracy within a certain range.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a special cyclone for classification of a tower mill, comprising a cylindrical barrel, a feed pipe is fixedly connected to the circumferential surface of the left side of the cylindrical barrel, and the feed pipe and the cylindrical barrel are communicated with each other, a conical barrel is fixedly connected to the lower end of the cylindrical barrel, and an underflow pipe is fixedly connected to the lower end of the conical barrel; an overflow pipe is slidably connected to the inside of the cylindrical barrel, the overflow pipe extends downward into the cylindrical barrel, and the overflow pipe extends upward to the upper end of the cylindrical barrel, a lifting and adjusting component is installed on the circumferential surface of the overflow pipe, and the lifting and adjusting component is used to adjust the height of the overflow pipe;

[0006] The lifting and adjusting assembly includes an electric telescopic rod, a fixing frame and a second connecting frame. The circumferential surface of the overflow pipe is fixedly connected to the fixing frame, the top of the fixing frame is fixedly connected to the second connecting frame, the top of the cylindrical tube is fixedly connected to the electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected to the second connecting frame.

[0007] Optionally, the lower end of the underflow pipe is fixedly connected to a first discharge pipe, the interior of the first discharge pipe is fixedly connected to a filter plate, the circumferential surface on the left side of the first discharge pipe is fixedly connected to a second discharge pipe, the circumferential surface on the left side of the first discharge pipe is provided with a discharge hole, the discharge hole is located at the upper end of the filter plate, and the second discharge pipe is connected to the first discharge pipe through the discharge hole.

[0008] Optionally, the top end of the cylindrical tube is fixedly connected to a guide telescopic rod, the output end of the guide telescopic rod is fixedly connected to a first connecting frame, and the first connecting frame is fixedly installed on the top end of the fixed frame.

[0009] Optionally, a fixed shell is fixedly connected to the top of the cylindrical tube, a sealing ring is fixedly installed inside the fixed shell, and the overflow pipe passes through the sealing ring and fits tightly with the sealing ring.

[0010] Optionally, a retractable flexible tube is fixedly connected to the upper end of the overflow tube, and a hard connecting tube is fixedly connected to the upper end of the retractable flexible tube.

[0011] Optionally, the inner walls of the telescopic flexible pipe and the rigid connecting pipe are sprayed with corrosion-resistant epoxy asphalt paint.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Under the action of the lifting and adjusting component, the utility model can adjust the depth of the overflow pipe extending into the cylindrical tube and the conical tube. In the process of the overflow pipe extending into the cylindrical tube and the conical tube and the depth changing, the distance from the lower end of the overflow pipe to the lower part of the conical tube is shortened. When the overflow pipe exceeds the cylindrical tube and enters the conical tube, the space aggregation between the outer wall of the overflow pipe and the inner wall of the conical tube becomes smaller, so that the tangential speed of the selected material is accelerated, and the actual separation density is correspondingly increased, thereby improving the yield and sorting accuracy of the overflow product. On the contrary, the yield and sorting accuracy of the overflow product can be reduced. Therefore, when the utility model is used in conjunction with a tower mill, the material coming out of the tower mill can be separated more effectively.

[0014] 2. With the cooperation of the first discharge pipe, the second discharge pipe and the filter plate, the utility model can perform secondary screening on the materials with high specific gravity coming out of the underflow pipe, so that the materials with high specific gravity can be separated more finely, so that these materials can be put into the tower mill again for processing later. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after the main view of the partial section;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0020] In the figure: 1. cylindrical cylinder; 2. feed pipe; 3. conical cylinder; 4. underflow pipe; 5. first discharge pipe; 6. second discharge pipe; 7. fixed shell; 8. guide telescopic rod; 9. overflow pipe; 10. telescopic flexible pipe; 11. electric telescopic rod; 12. hard connecting pipe; 13. first connecting frame; 14. second connecting frame; 15. sealing ring; 16. fixed frame; 17. filter plate; 18. discharge hole. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 4 , a cyclone specially used for grading a tower mill provided in an embodiment of the utility model is now described. A cyclone specially used for grading a tower mill comprises a cylindrical barrel 1, a feed pipe 2 is fixedly connected to the circumferential surface on the left side of the cylindrical barrel 1, and the feed pipe 2 is interconnected with the cylindrical barrel 1, a conical barrel 3 is fixedly connected to the lower end of the cylindrical barrel 1, and an underflow pipe 4 is fixedly connected to the lower end of the conical barrel 3; an overflow pipe 9 is slidably connected to the inside of the cylindrical barrel 1, the overflow pipe 9 extends downward into the cylindrical barrel 1, and the overflow pipe 9 extends upward to the upper end of the cylindrical barrel 1, a lifting and adjusting component is installed on the circumferential surface of the overflow pipe 9, and the lifting and adjusting component is used to adjust the height of the overflow pipe 9; when working, the materials discharged from the tower mill enter the cylindrical barrel 1 along the feed pipe 2, and at this time, these materials are subjected to the action of centrifugal force and upward buoyancy, and the materials with high specific gravity are discharged from the underflow pipe 4, and the materials with low specific gravity are discharged from the overflow pipe 9 to the outside, so as to achieve the separation of materials with high specific gravity and materials with low specific gravity;

[0022] The lifting and lowering adjustment assembly includes an electric telescopic rod 11, a fixing frame 16 and a second connecting frame 14. The circumferential surface of the overflow pipe 9 is fixedly connected with the fixing frame 16, the top of the fixing frame 16 is fixedly connected with the second connecting frame 14, the top of the cylindrical tube 1 is fixedly connected with the electric telescopic rod 11, and the output end of the electric telescopic rod 11 is fixedly connected with the second connecting frame 14. When working, the electric telescopic rod 11 is controlled to work, and the overflow pipe 9 is driven to move upward with the cooperation of the second connecting frame 14, thereby playing the role of adjusting the height of the overflow pipe 9.

[0023] The utility model provides a cyclone for grading a tower mill. Compared with the prior art, under the action of the lifting and adjusting component, the depth of the overflow pipe 9 extending into the cylindrical barrel 1 and the conical barrel 3 can be adjusted. In the process of the overflow pipe 9 extending into the cylindrical barrel 1 and the conical barrel 3, the distance from the lower end of the overflow pipe 9 to the lower part of the conical barrel 3 is shortened. When the overflow pipe 9 is longer than the cylindrical barrel 1 and enters the conical barrel 3, the space aggregation between the outer wall of the overflow pipe 9 and the inner wall of the conical barrel 3 becomes smaller, so that the tangential speed of the selected material is accelerated and the actual separation density is increased accordingly, thereby improving the yield and sorting accuracy of the overflow product. Conversely, the yield and sorting accuracy of the overflow product can be reduced. Therefore, when the utility model is used in conjunction with the tower mill, the material coming out of the tower mill can be separated more effectively.

[0024] In another embodiment of the present invention, please refer to Figure 1-4 The lower end of the underflow pipe 4 is fixedly connected with the first discharge pipe 5, the inside of the first discharge pipe 5 is fixedly connected with the filter plate 17, the circumferential surface on the left side of the first discharge pipe 5 is fixedly connected with the second discharge pipe 6, the circumferential surface on the left side of the first discharge pipe 5 is provided with a discharge hole 18, the discharge hole 18 is located at the upper end of the filter plate 17, and the second discharge pipe 6 is connected with the first discharge pipe 5 through the discharge hole 18. During operation, the materials with a high specific gravity flowing out of the underflow pipe 4 can flow downward along the first discharge pipe 5, and in the process of flowing out, they are filtered by the filter plate 17, at this time, these materials with a high specific gravity are filtered twice, the materials filtered out by the filter plate 17 are discharged from the second discharge pipe 6, and the materials passing through the filter plate 17 are discharged from the first discharge pipe 5, so that the materials with a high specific gravity can be separated more finely, so that these materials can be put into the tower mill again for processing later.

[0025] In another embodiment of the present invention, please refer to Figure 1 and Figure 2 The top of the cylinder 1 is fixedly connected with a guide telescopic rod 8, the output end of the guide telescopic rod 8 is fixedly connected with a first connecting frame 13, and the first connecting frame 13 is fixedly mounted on the top of the fixed frame 16. During operation, the overflow pipe 9 can be more stably adjusted in height under the cooperation of the guide telescopic rod 8 and the first connecting frame 13.

[0026] In another embodiment of the present invention, refer to Figures 1 to 3 The top of the cylindrical tube 1 is fixedly connected with a fixed shell 7, a sealing ring 15 is fixedly installed inside the fixed shell 7, and the overflow pipe 9 passes through the sealing ring 15 and fits tightly with the sealing ring 15. When working, under the action of the sealing ring 15, the sealing effect between the overflow pipe 9 and the cylindrical tube 1 is enhanced.

[0027] In another embodiment of the present invention, please refer to Figure 2 and Figure 3The upper end of the overflow pipe 9 is fixedly connected with a telescopic flexible pipe 10, and the upper end of the telescopic flexible pipe 10 is fixedly connected with a hard connecting pipe 12. During operation, the hard connecting pipe 12 can adjust its height and angle at will with the cooperation of the telescopic flexible pipe 10, so that the material discharged from the hard connecting pipe 12 can be discharged to a more suitable position.

[0028] In another embodiment of the present invention, please refer to Figures 1 to 3 The inner walls of the telescopic flexible pipe 10 and the rigid connecting pipe 12 are sprayed with corrosion-resistant epoxy asphalt paint. When working, the corrosion resistance of the telescopic flexible pipe 10 and the rigid connecting pipe 12 can be enhanced.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cyclone for classification of a tower mill, comprising a cylindrical barrel (1), characterized in that: A feed pipe (2) is fixedly connected to the circumferential surface on the left side of the cylindrical barrel (1), and the feed pipe (2) and the cylindrical barrel (1) are in communication with each other; a conical barrel (3) is fixedly connected to the lower end of the cylindrical barrel (1), and an underflow pipe (4) is fixedly connected to the lower end of the conical barrel (3); an overflow pipe (9) is slidably connected to the inside of the cylindrical barrel (1), and the overflow pipe (9) extends downward into the cylindrical barrel (1), and the overflow pipe (9) extends upward to the upper end of the cylindrical barrel (1); a lifting and lowering adjustment component is installed on the circumferential surface of the overflow pipe (9), and the lifting and lowering adjustment component is used to adjust the height of the overflow pipe (9); The lifting and adjusting assembly comprises an electric telescopic rod (11), a fixing frame (16) and a second connecting frame (14); the circumferential surface of the overflow pipe (9) is fixedly connected to the fixing frame (16); the top end of the fixing frame (16) is fixedly connected to the second connecting frame (14); the top end of the cylindrical tube (1) is fixedly connected to the electric telescopic rod (11); and the output end of the electric telescopic rod (11) is fixedly connected to the second connecting frame (14); The lower end of the underflow pipe (4) is fixedly connected to a first discharge pipe (5), the interior of the first discharge pipe (5) is fixedly connected to a filter plate (17), the left circumferential surface of the first discharge pipe (5) is fixedly connected to a second discharge pipe (6), the left circumferential surface of the first discharge pipe (5) is provided with a discharge hole (18), the discharge hole (18) is located at the upper end of the filter plate (17), and the second discharge pipe (6) is communicated with the first discharge pipe (5) through the discharge hole (18).

2. A cyclone for classification of a tower mill as claimed in claim 1, characterized in that: The top end of the cylindrical tube (1) is fixedly connected to a guide telescopic rod (8), the output end of the guide telescopic rod (8) is fixedly connected to a first connecting frame (13), and the first connecting frame (13) is fixedly mounted on the top end of a fixed frame (16).

3. A cyclone for classification of a tower mill as claimed in claim 1, characterized in that: The top end of the cylindrical tube (1) is fixedly connected to a fixed shell (7), a sealing ring (15) is fixedly installed inside the fixed shell (7), and the overflow pipe (9) passes through the sealing ring (15) and fits tightly with the sealing ring (15).

4. A cyclone for classification of a tower mill as claimed in claim 1, characterized in that: The upper end of the overflow pipe (9) is fixedly connected to a telescopic flexible pipe (10), and the upper end of the telescopic flexible pipe (10) is fixedly connected to a hard connecting pipe (12).

5. A cyclone for classification of a tower mill as claimed in claim 4, characterized in that: The inner walls of the telescopic flexible pipe (10) and the hard connecting pipe (12) are sprayed with corrosion-resistant epoxy asphalt paint.

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