Anti-blocking type discharging grid plate of mill and mill
By designing an anti-blocking discharge grate plate, using multiple fan-shaped grate plates and adjustment blocks, the problem of easy clogging of the discharge hole of the mill is solved, and the smooth discharge of materials and efficient operation of the mill is achieved.
Patent Information
- Application Number
- CN202421615018.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The discharge holes on the discharge grate plate in existing mills are easily blocked, resulting in the inability to use the mill normally and efficiently.
A grinder anti-blocking discharge grate plate is designed, and a plurality of fan-shaped grate plates are assembled through overlapping surfaces and connecting holes to form a discharge grate plate, and an adjustment block is provided on the back of the grate plate to adjust the discharge hole diameter.
By setting up multiple discharge holes and adjustment blocks with different arrangement angles, we ensure smooth discharge of materials, avoid blockage, and ensure normal and efficient operation of the mill.
Smart Images
Figure CN222872332U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mill equipment, and more specifically relates to a mill anti-blocking discharging grate plate and a mill. Background Art
[0002] Mills are used in cement, silicate products, new building materials, refractory materials, fertilizers, metal beneficiation, glass and ceramics and other production industries to dry or wet grind various ores and other grindable materials. The grinding function of the mill is mainly the impact and grinding of the grinding body on the material. Its working principle is as follows: the raw material is fed into the hollow cylinder through the hollow shaft neck for grinding. The cylinder is filled with grinding media of various diameters. When the cylinder rotates around the horizontal axis at a certain speed, the media and raw materials in the cylinder are separated from the inner wall of the cylinder and thrown down or rolled down under the action of centrifugal force and friction as the cylinder reaches a certain height. When the gravity is greater than the centrifugal force, the ore is crushed due to the impact force. At the same time, during the rotation of the mill, the sliding movement of the grinding media between each other also produces a grinding effect on the raw material, and the ground material is discharged through the hollow shaft neck. The existing mill is provided with a discharge grate plate at the tail of the cylinder, and the ground material is discharged through the discharge holes on the discharge grate plate. However, since the discharge holes on the discharge grate plate are easily blocked, the entire mill cannot be used normally and efficiently. Utility Model Content
[0003] The utility model aims to provide a mill anti-blocking discharging grate plate and a mill, so as to solve the technical problem in the prior art that the discharging holes on the discharging grate plate are easily blocked, resulting in the inability to use the entire mill normally and efficiently.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a mill anti-blocking discharging grate plate, including a plurality of fan-shaped grate plate bodies, a plurality of the grate plate bodies are connected end to end and arranged in a ring to form a discharging grate plate, the left and right sides of the grate plate body are provided with overlapping surfaces for connecting two adjacent grate plate bodies, and the two overlapping surfaces are provided with connecting holes; the grate plate body is provided with a first discharging hole group and a second discharging hole group arranged up and down, the first discharging hole group includes a plurality of first discharging holes, and the first discharging holes are arranged along the The grate block body is arranged with long arc holes in the circumference, and the plurality of the first discharge holes are arranged at intervals along the radial direction of the grate block body; the second discharge hole group includes a plurality of second discharge holes, which are long straight holes and are arranged at an angle; the plurality of the second discharge holes are arranged in parallel at intervals; the back of the grate block body is provided with a plurality of mounting grooves and a plurality of adjustment blocks, the adjustment blocks are fitted in the mounting grooves and are movably connected to the grate block body; the mounting groove is located between two adjacent first discharge holes and two adjacent second discharge holes.
[0005] In a possible implementation, a long installation opening is provided on the bottom surface of the installation groove, and a rotating shaft rotatably mounted with the long installation opening is provided at one end of the adjustment block.
[0006] In a possible implementation manner, a swing spacing for limiting the movement of the adjustment block is provided between the end surface of the adjustment block and the bottom surface of the installation groove.
[0007] In a possible implementation, the upper side surface of the adjustment block is a first guide slope inclined downward, and the lower side surface of the adjustment block is a second guide slope inclined upward; the thickness of the adjustment block gradually decreases from one end close to the installation groove toward one end away from the installation groove.
[0008] In a possible implementation, filling layers are provided on both sides where the adjustment block is mounted in cooperation with the groove side wall of the installation groove.
[0009] In a possible implementation, the first discharge hole includes a plurality of discharge hole segments that are evenly spaced, and center lines of the plurality of discharge hole segments are located on the same arc.
[0010] In a possible implementation, matching connecting grooves are provided on one side of the upper end surface and the other side of the lower end surface of the grate plate body, and the bottom surfaces of the two matching connecting grooves are the overlapping surfaces.
[0011] In a possible implementation, an arc-shaped limiting protrusion is provided at the upper end of the grate block body, and a plurality of the arc-shaped limiting protrusions form an annular protrusion; an arc-shaped limiting protrusion is provided at the lower end of the grate block body, and a plurality of the arc-shaped limiting protrusions form an annular protrusion.
[0012] In a possible implementation, the grate plate body is made of stainless steel.
[0013] The beneficial effect of the anti-blocking discharging grate plate of the mill provided by the utility model is that: compared with the prior art, the anti-blocking discharging grate plate of the mill provided by the utility model, when in use, a plurality of grate plate bodies are assembled through overlapping surfaces and connecting holes to form a discharging grate plate, and installed at the tail of the mill cylinder; when the ground material is discharged, since the first discharging hole is a long arc hole and the second discharging hole is a long straight hole arranged obliquely, with the help of the plurality of first discharging holes and the plurality of second discharging holes arranged at different angles, the material moving in different directions can smoothly pass through the first discharging hole or the second discharging hole and be discharged from the mill cylinder; and when part of the material is accumulated at the first discharging hole or the second discharging hole, the accumulated material is discharged as It is used on the adjusting block, and the adjusting block is movably connected with the mounting groove to make the adjusting block rotate up and down, thereby changing the discharge apertures of the first discharge hole and the second discharge hole, so that the force applied to the blocked material at the first discharge hole and the second discharge hole changes, and then the material passes through the first discharge hole or the second discharge hole smoothly and is discharged; in this way, a plurality of first discharge holes and a plurality of second discharge holes with different arrangement angles are arranged, and an adjusting block located between the first discharge hole and the second discharge hole is arranged on the back side of the grate plate body to adjust the discharge apertures of the first discharge hole and the second discharge hole so that the material can be discharged smoothly, and the discharged material is not easily blocked, thereby ensuring the normal and efficient use of the mill.
[0014] Another object of the utility model is to provide a grinding mill, comprising any one of the above-mentioned anti-blocking type discharging grate plates for the grinding mill.
[0015] The mill provided by the utility model adopts a mill anti-blocking discharging grate plate, and is provided with a plurality of first discharging holes and a plurality of second discharging holes arranged at different angles, and an adjusting block is arranged on the back side of the grate plate body between the first discharging hole and the second discharging hole to adjust the discharging apertures of the first discharging hole and the second discharging hole so that the material can be discharged smoothly, and the discharged material is not prone to clogging, thereby ensuring the normal and efficient use of the mill. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] 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.
[0017] Figure 1 The structure of the grate plate body provided by the embodiment of the utility model is schematically shown Figure 1 ;
[0018] Figure 2 A front view of a grate plate body provided in an embodiment of the utility model;
[0019] Figure 3 A partial cross-sectional view of a grate plate body provided in an embodiment of the utility model Figure 1 ;
[0020] Figure 4 A partial cross-sectional view of a grate plate body provided in an embodiment of the utility model Figure 2 ;
[0021] Figure 5 The structure of the grate plate body provided by the embodiment of the utility model is schematically shown Figure 2 ;
[0022] Figure 6 A schematic structural diagram of a mill anti-blocking discharging grate plate provided in an embodiment of the utility model.
[0023] Among them, the reference numerals in the figure are:
[0024] 1. Grate plate body; 11. Overlap surface; 12. Connection hole; 13. Installation groove; 14. Long installation opening; 15. Filling layer; 16. Matching connection groove; 17. Arc-shaped limiting protrusion; 2. First discharge hole; 21. Discharge hole section; 3. Second discharge hole; 4. Adjustment block; 41. Rotating shaft; 42. Swinging distance; 43. First guide slope; 44. Second guide slope; 5. Discharge grate plate. DETAILED DESCRIPTION
[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0029] See also Figures 1 to 6 The anti-blocking discharging grate plate for a mill provided by the utility model is now described. A kind of anti-blocking discharging grate plate for a mill comprises a plurality of fan-shaped grate plate bodies 1, wherein the plurality of grate plate bodies 1 are connected end to end and arranged in a ring to form a discharging grate plate 5, and the left and right sides of the grate plate body 1 are provided with overlapping surfaces 11 for connecting two adjacent grate plate bodies 1, and the two overlapping surfaces 11 are provided with connecting holes 12; the grate plate body 1 is provided with a first discharging hole group 2 and a second discharging hole group 3 arranged up and down, and the first discharging hole group 2 comprises a plurality of first discharging holes 2, and the first discharging holes 2 are arranged along the circumference of the grate plate body 1. A plurality of first discharge holes 2 are arranged at intervals along the radial direction of the grate block body 1; a second discharge hole 3 group includes a plurality of second discharge holes 3, which are long straight holes and are arranged at an angle; a plurality of second discharge holes 3 are arranged in parallel at intervals; a plurality of mounting grooves 13 and a plurality of adjustment blocks 4 are provided on the back of the grate block body 1, and the adjustment blocks 4 are mounted in the mounting grooves 13 and are movably connected to the grate block body 1; the mounting groove 13 is located between two adjacent first discharge holes 2 and two adjacent second discharge holes 3.
[0030] Compared with the prior art, the anti-blocking discharging grate plate of the mill provided by the utility model is used. When in use, a plurality of grate plate bodies 1 are assembled through the overlapping surface 11 and the connecting hole 12 to form a discharging grate plate 5, and the discharging grate plate 5 is installed at the tail of the mill cylinder; when the ground material is discharged, since the first discharging hole 2 is a long arc hole and the second discharging hole 3 is a long straight hole arranged obliquely, with the help of the plurality of first discharging holes 2 and the plurality of second discharging holes 3 arranged at different angles, the material moving in different directions can smoothly pass through the first discharging hole 2 or the second discharging hole 3 and be discharged from the mill cylinder; and when part of the material is accumulated in the first discharging hole 2 or the second discharging hole 3, the accumulated material acts on the adjusting block 4, and with the help of the adjusting block 4 is movably connected with the mounting groove 13 to make the adjusting block 4 rotate up and down, thereby changing the discharge apertures of the first discharge hole 2 and the second discharge hole 3, so that the force of the blocked material in the first discharge hole 2 and the second discharge hole 3 changes, and then smoothly passes through the first discharge hole 2 or the second discharge hole 3 and is discharged; in this way, a plurality of first discharge holes 2 and a plurality of second discharge holes 3 with different arrangement angles are provided, and an adjusting block 4 located between the first discharge hole 2 and the second discharge hole 3 is provided on the back side of the grate block body 1 to adjust the discharge apertures of the first discharge hole 2 and the second discharge hole 3 so that the material is discharged smoothly, and the discharged material is not easily blocked, thereby ensuring the normal and efficient use of the mill.
[0031] See also Figure 3 and Figure 4 As a specific embodiment of the anti-blocking discharging grate plate of the mill provided by the utility model, a long strip installation opening 14 is provided on the bottom surface of the installation groove 13, and a rotating shaft 41 is provided at one end of the adjustment block 4 to be rotatably mounted with the long strip installation opening 14; the installation groove 13 is opened on the back of the grate block body 1, and the long strip installation opening 14 is provided on the bottom surface of the installation groove 13; when installing the adjustment block 4, the rotating shaft 41 on the adjustment block 4 is installed in the long strip installation opening 14, and forms a rotational connection with the grate block body 1; in this way, the movement of the adjustment block 4 is faster and more stable. A torsion spring can be installed on the rotating shaft 41, so that the rotating shaft 41 and the adjustment block 4 are in a horizontal state in normal state.
[0032] See also Figure 3 and Figure 4 As a specific embodiment of the anti-blocking discharging grate plate of the mill provided by the utility model, a swing spacing 42 for limiting the movement of the adjusting block 4 is provided between the end surface of the adjusting block 4 and the bottom surface of the mounting groove 13; that is, a limiting surface is provided at one end of the adjusting block 4 close to the mounting groove 13, and a swing spacing 42 is formed between the limiting surface and the bottom surface of the mounting groove 13, so that the adjusting block 4 can only swing within a certain angle, so that the discharge aperture changes of the two first discharge holes 2 or the two second discharge holes 3 above and below the adjusting block 4 are within a certain range, and will not be blocked by the influence of the adjusting block 4.
[0033] See also Figure 3 and Figure 4 As a specific embodiment of the anti-blocking discharge grate plate of the mill provided by the utility model, the upper side surface of the adjusting block 4 is a first guide slope 43 inclined downward, and the lower side surface of the adjusting block 4 is a second guide slope 44 inclined upward; the thickness of the adjusting block 4 gradually decreases from the end close to the mounting groove 13 toward the end away from the mounting groove 13; with the help of the first guide slope 43 and the second guide slope 44, the entire adjusting block 4 is conical, so that the aperture of the material gradually increases during the movement of the first discharge hole 2 and the second discharge hole 3, so that the material entering the first discharge hole 2 and the second discharge hole 3 can smoothly pass through the entire first discharge hole 2 and the second discharge hole 3.
[0034] See also Figure 4 As a specific embodiment of the anti-blocking discharging grate plate of the mill provided by the utility model, filling layers 15 are provided on both sides where the adjusting block 4 is installed in cooperation with the side walls of the mounting groove 13; the gap between the adjusting block 4 and the inner wall of the mounting groove 13 is blocked by means of the filling layer 15 to prevent the material from getting stuck in the gap.
[0035] See also Figure 1 and Figure 2 As a specific embodiment of the anti-blocking discharging grate plate of the mill provided by the utility model, the first discharging hole 2 includes a plurality of discharging hole segments 21 evenly spaced, and the center lines of the plurality of discharging hole segments 21 are located on the same arc; that is, each first discharging hole 2 is divided into a plurality of discharging hole segments 21, and the plurality of discharging hole segments 21 are independent of each other, so that the material will not gather in the same first discharging hole 2 during the discharging process, and when one of the discharging hole segments 21 is blocked, the other discharging hole segments 21 can discharge the material smoothly. And the center lines of the plurality of discharging hole segments 21 are located on the same arc, so that the material of the same height can smoothly enter the unblocked discharging hole segment 21 from the blocked discharging hole segment 21.
[0036] See also Figure 1 , Figure 2 , Figure 5As a specific embodiment of the anti-blocking discharging grate plate of the mill provided by the utility model, a matching connection groove 16 is provided on one side of the upper end face and the other side of the lower end face of the grate block body 1, and the groove bottom surfaces of the two matching connection grooves 16 are overlapping surfaces 11; that is, the left lower end face of the grate block body is provided with a matching connection groove 16, and the right upper end face is provided with a matching connection groove 16, and the groove bottom surface is formed into an overlapping surface 11 by means of the matching connection groove 16. The depth of the matching connection groove 16 is set to half of the thickness of the grate block body. When two adjacent grate block bodies are matched and installed, the matching connection groove 16 on the left side of one grate block body is buckled and overlapped with the matching connection groove 16 on the right side of the other grate block body, and the connecting holes 12 on the two grate block bodies are coaxially aligned and fixedly connected using fasteners such as bolts and nuts. And by virtue of the depth of the matching connection groove 16 being half of the thickness of the grate block body, the discharging grate plate formed by the matched installation of multiple grate block bodies has a flat surface.
[0037] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 As a specific embodiment of the anti-blocking discharging grate plate of the mill provided by the utility model, the upper end of the grate block body 1 is provided with an arc-shaped limiting protrusion 17, and multiple arc-shaped limiting protrusions 17 form an annular protrusion; the lower end of the grate block body 1 is provided with an arc-shaped limiting protrusion 17, and multiple arc-shaped limiting protrusions 17 form an annular protrusion; arc-shaped limiting protrusions 17 are provided at the upper and lower ends of the grate plate body, and the arc-shaped limiting protrusions 17 are arranged along the circumferential direction of the fan, so that the material located in the area corresponding to the first discharging hole 2 and the second discharging hole 3 on the grate block body is not easy to escape from the grate block body. When multiple grate block bodies are connected end to end to form a discharging grate plate, multiple arc-shaped limiting protrusions 17 form an annular protrusion, and the limiting and surrounding effect is better. The arc-shaped limiting protrusion 17 has an arc-shaped surface on the side close to the first discharging hole 2 and the second discharging hole 3.
[0038] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 As a specific embodiment of the anti-blocking discharging grate plate for a mill provided by the utility model, the angle between the length direction of the long straight hole and the horizontal plane is 40-50°; so that multiple long straight holes can receive more materials, and multiple long straight holes cover a wider range. Preferably, the angle between the length direction of the long straight hole and the horizontal plane is 45°.
[0039] As a specific implementation of the anti-blocking discharging grate plate for a mill provided by the utility model, the grate plate body 1 is made of stainless steel, so that the grate plate has high strength, is not easy to deform, and has a long service life.
[0040] Not shown in the figures, an embodiment of the utility model further provides a grinding mill, the grinding mill comprising any one of the above-mentioned anti-blocking type discharging grate plates of the grinding mill.
[0041] The mill provided by the utility model adopts the above-mentioned mill anti-blocking discharge grate plate, therefore, a plurality of first discharge holes 2 and a plurality of second discharge holes 3 arranged at different angles are arranged, and an adjustment block 4 located between the first discharge hole 2 and the second discharge hole 3 is arranged on the back side of the grate plate body 1 to adjust the discharge apertures of the first discharge hole 2 and the second discharge hole 3 so that the material can be discharged smoothly, and the discharged material is not easy to be blocked, thereby ensuring the normal and efficient use of the mill.
[0042] 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 mill anti-blocking discharge grate plate, comprising a plurality of sector-shaped grate plate bodies, wherein the plurality of sector-shaped grate plate bodies are connected end to end and arranged in a ring to form a discharge grate plate, characterized in that: The left and right sides of the grate block body are provided with overlapping surfaces for connecting two adjacent grate block bodies, and the two overlapping surfaces are provided with connecting holes; the grate block body is provided with a first discharge hole group and a second discharge hole group arranged up and down, the first discharge hole group includes a plurality of first discharge holes, and the first discharge holes are long arc holes arranged along the circumference of the grate block body, and the plurality of first discharge holes are arranged at intervals along the radial direction of the grate block body; the second discharge hole group includes a plurality of second discharge holes, and the second discharge holes are long straight holes and are arranged at an angle; the plurality of second discharge holes are arranged in parallel at intervals; the back side of the grate block body is provided with a plurality of mounting grooves and a plurality of adjustment blocks, the adjustment blocks are cooperatively installed in the mounting grooves and are movably connected with the grate block body; the mounting groove is located between two adjacent first discharge holes and two adjacent second discharge holes.
2. The anti-blocking discharging grate plate for a mill according to claim 1, characterized in that: A long strip installation opening is arranged on the bottom surface of the installation slot, and a rotating shaft which is rotatably matched with the long strip installation opening is arranged at one end of the adjustment block.
3. The anti-blocking discharging grate plate for a mill as claimed in claim 2, characterized in that: A swing spacing for limiting the movement of the adjusting block is provided between the end surface of the adjusting block and the bottom surface of the mounting groove.
4. The anti-blocking discharging grate plate for a mill according to claim 1, characterized in that: The upper side of the adjustment block is a first guide slope inclined downward, and the lower side of the adjustment block is a second guide slope inclined upward; the thickness of the adjustment block gradually decreases from one end close to the installation groove toward one end away from the installation groove.
5. The anti-blocking discharging grate plate for a mill according to claim 1, characterized in that: Filling layers are provided on both sides where the adjusting block is matched with the groove side wall of the installation groove.
6. The anti-blocking discharging grate plate for a mill according to claim 1, characterized in that: The first discharge hole includes a plurality of discharge hole segments that are evenly spaced, and center lines of the plurality of discharge hole segments are located on the same arc.
7. The anti-blocking discharging grate plate for a mill according to claim 1, characterized in that: Matching connection grooves are provided on one side of the upper end surface and the other side of the lower end surface of the grate plate body, and the bottom surfaces of the two matching connection grooves are the overlapping surfaces.
8. The anti-blocking discharging grate plate for a mill according to claim 1, characterized in that: The upper end of the grate block body is provided with an arc-shaped limiting protrusion, and a plurality of the arc-shaped limiting protrusions form an annular protrusion; the lower end of the grate block body is provided with an arc-shaped limiting protrusion, and a plurality of the arc-shaped limiting protrusions form an annular protrusion.
9. The anti-blocking discharging grate plate for a mill according to claim 1, characterized in that: The grate plate body is made of stainless steel.
10. A grinding machine, characterized in that: It comprises the anti-blocking discharging grate plate of the mill as described in any one of claims 1 to 9.