Lattice plate of lattice type ball mill

Abstract

The utility model discloses a grid plate of a grid type ball mill, which relates to the field of ball mill components, solves the problem that after a plurality of grid plate fixing bolts need to be detached, an operator enters to clean and prize the grid plate to detach the grid plate, and comprises an outer ring plate and an inner ring plate, the outer ring plate and the inner ring plate are respectively fan-shaped, and the sides of the outer ring plate and the inner ring plate are respectively connected with a mounting structure. The mounting structure comprises first lining plates and second lining plates, the first lining plates are fixedly connected to the sides, located at the top, of the outer ring plate and the inner ring plate correspondingly, the second lining plates are fixedly connected to the other sides, located at the bottom, of the inner ring plate correspondingly, the first lining plates and the second lining plates are distributed diagonally, and mounting holes are formed in the surfaces of the first lining plates and the surfaces of the second lining plates correspondingly. The surfaces of the outer ring plate and the inner ring plate are provided with a plurality of discharging holes distributed in a fan shape, when the grid plates are disassembled or assembled, the two grid plates do not interfere with each other, the problem that the grid plates are difficult to assemble and disassemble is solved, and the overhaul progress is effectively accelerated or the labor intensity of maintainers is effectively relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball mill assembly field, concretely is a lattice type ball mill lattice board. BACKGROUND

[0002] The lattice type ball mill is fixed on the discharge end cover in the ball mill, and is mainly used for intercepting the steel balls in the ball mill to avoid being discharged from the ball mill together with the grinding materials.

[0003] The lattice board is divided into outer ring lattice boards and inner ring lattice boards, and each of the outer and inner ring lattice boards has 8 pieces. The original design adopts a stacked pressing mode for installing the lattice boards, and each of the lattice boards is fixed on the fan-shaped rib plate of the end cover by 4 bolts. Since the lattice boards are designed to be installed in the stacked pressing mode, it is difficult to remove or install the lattice boards during daily maintenance and replacement. When the lattice boards are removed, the operator needs to enter the clearance to remove the lattice boards after removing the fixing bolts of multiple lattice boards, and the operator entering the clearance after removing the fixing bolts of multiple lattice boards may cause collapse and endanger the personal safety of the operator. SUMMARY

[0004] The utility model discloses a kind of lattice type ball mill lattice boards, which can effectively improve maintenance progress, eliminate safety risks for operators or reduce labor intensity of maintenance personnel, and solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a lattice type ball mill lattice board, comprising an outer ring plate and an inner ring plate, the outer ring plate and the inner ring plate are respectively in a fan shape, and an installation structure is connected to each side of the outer ring plate and the inner ring plate. The installation structure comprises a first lining plate and a second lining plate. The outer ring plate and the inner ring plate are respectively fixedly connected to the first lining plate at one side of the top position, and the inner ring plate is respectively fixedly connected to the second lining plate at the other side of the bottom position. The first lining plate and the second lining plate are diagonally distributed. The first lining plate and the second lining plate are both provided with installation holes on the surface. The outer ring plate and the inner ring plate are provided with a plurality of fan-shaped discharge holes on the surface.

[0006] Preferably, the bottom corner of the first lining plate away from the side of the outer ring plate is set as an outer circular chamfer, and the bottom corner of the other side is set as an inner circular chamfer. The top corner of the second lining plate away from the side of the outer ring plate is set as an outer circular chamfer, and the top corner of the other side is set as an inner circular chamfer. The outer circular chamfer of the first lining plate matches and contacts with the inner circular chamfer of the second lining plate, and the inner circular chamfer of the first lining plate contacts with the outer circular chamfer of the second lining plate. The high matching degree of contact makes the two lattice boards not interfere with each other during installation, eliminating the difficulty of installation or disassembly.

[0007] Preferably, the top side wall of the outer ring plate is provided with two symmetrically arranged first long grooves, and the bottom side wall of the inner ring plate is provided with two symmetrically arranged second long grooves. The first long grooves match with the second long grooves.

[0008] Preferably, the first and second lining plates are fixedly connected with matching length reinforcing rib plates, the reinforcing rib plates are provided with waist-shaped holes communicated with the mounting holes, the waist-shaped holes play a role of pre-positioning, can easily complete installation by bolt alignment of the mounting hole positions, provide convenience for installation operation, the reinforcing rib plates improve overall strength, are not easy to be damaged in the multiple pressing process of screwing in the bolts, and prolong service life.

[0009] Preferably, the reinforcing rib plate is in a semicylindrical shape, the diameter of the reinforcing rib plate is equal to the width of the first lining plate, the widths of the first and second lining plates are equal, and the semicylindrical shape does not generate edges and corners, so that a worker's hand is not easy to be hurt in the process of holding installation or disassembly.

[0010] Preferably, the discharge hole is tapered in an inner side depth, and the front side and the rear side of the discharge hole are both in a waist shape.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The lattice plate of the ball mill is reformed, the original laminated fixed type of the lattice plate is changed into separate fixing, the original four bolts for fixing each lining plate are cancelled, and two fixed bolts are used for diagonal fixing, so that the number of bolts is reduced, the total number of screwed bolts is reduced, the installation workload is reduced, the installation efficiency is improved, and the cost investment is reduced.

[0013] 2. When the lattice plate is disassembled or installed, the two lattice plates do not interfere with each other, the problems of difficult installation and disassembly are eliminated, the maintenance progress is effectively improved, and the safety risk of the workers or the labor intensity of the maintenance personnel is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a vertical direction splicing structure schematic view of the outer ring plate and the inner ring plate in the utility model;

[0015] Figure 2 It is a three-dimensional structure schematic view of the outer ring plate and the mounting structure in the utility model;

[0016] Figure 3 It is a three-dimensional structure schematic view of the inner ring plate and the mounting structure in the utility model;

[0017] Figure 4 It is a local structure schematic view of two groups of outer ring plates and inner ring plates in the utility model.

[0018] In the drawing: 1, outer ring plate; 2, inner ring plate; 3, mounting structure; 301, first lining plate; 302, second lining plate; 303, mounting hole; 304, outer circle chamfer; 305, inner circle chamfer; 306, discharge hole; 307, first long slot; 308, waist-shaped hole; 309, reinforcing rib plate; 3010, second long slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 、 Figure 2 and Figure 3 The figure shows a grid-type ball mill grid plate, including eight outer ring plates 1 and eight inner ring plates 2, the outer ring plates 1 and the inner ring plates 2 are respectively fan-shaped, and the eight outer ring plates 1 and the eight inner ring plates 2 are pieced together into a ring shape. The outer ring plates 1 and the inner ring plates 2 are respectively connected to the sides with mounting structures 3, and the mounting structure 3 includes a first lining plate 301 and a second lining plate 302. The outer ring plates 1 and the inner ring plates 2 are located at the top position and are respectively fixedly connected to the first lining plate 301 on one side, and the inner ring plates 2 are located at the bottom position and are respectively fixedly connected to the second lining plate 302 on the other side. The first lining plate 301 and the second lining plate 302 are diagonally distributed, and the surfaces of the first lining plate 301 and the second lining plate 302 are both opened. There are mounting holes 303, and a number of fan-shaped discharge holes 306 are opened on the surface of the outer ring plate 1 and the inner ring plate 2. It should be noted that the eight outer ring plates 1 and the eight inner ring plates 2 are placed in sequence at the position of the discharge end cover, and are fixed by screwing in bolts matching the mounting holes 303 to form a ring-shaped distribution, eliminating the installation method of pressing the grating plates one by one. In this way, when installing or removing the grating plates, the two grating plates do not interfere with each other, eliminating problems such as installation and disassembly difficulties, effectively improving the maintenance progress and eliminating the safety risks of the operators or reducing the labor intensity of the maintenance personnel. In addition, the single-piece installation method only requires maintenance or replacement of the damaged area, which provides convenience for the maintenance process.

[0021] See also Figure 2 、 Figure 3 and Figure 4, the first lining plate 301 is provided with an outer round chamfer 304 at the bottom corner away from the side of the outer ring plate 1, and an inner round chamfer 305 at the other side, the second lining plate 302 is provided with an outer round chamfer 304 at the top corner away from the side of the outer ring plate 1, and an inner round chamfer 305 at the other side, and the first lining plate 301 and the second lining plate 302 on the inner ring plate 2 adopt the same chamfer structure, it should be noted that the outer round chamfer 304 of the first lining plate 301 matches the inner round chamfer 305 of the second lining plate 302 after the two lattice plates are spliced, the inner round chamfer 305 of the first lining plate 301 contacts the outer round chamfer 304 of the second lining plate 302, and the high matching degree contact makes the two lattice plates not interfere with each other during installation, eliminating the problem of difficult installation or disassembly.

[0022] Referring to Figure 2 , Figure 3 and Figure 4 , the top side wall of the outer ring plate 1 is provided with two symmetrically arranged first long grooves 307, and the bottom side wall of the inner ring plate 2 is provided with two symmetrically arranged second long grooves 3010, the first long groove 307 matches the second long groove 3010, it should be noted that the first long groove 307 and the second long groove 3010 are spliced into a shape similar to the discharge hole 306, which can allow part of the grinding material to flow out from here, preventing the outer ring plate 1 and the inner ring plate 2 from being able to discharge the grinding material at the joint position, and the contact position is provided with a long groove in the shape of a discharge hole 306, which reduces the possibility of direct collision of the grinding material.

[0023] Referring to Figure 2 and 3 , the first lining plate 301 and the second lining plate 302 are both fixedly connected with a matching length of reinforcing rib plate 309, and the reinforcing rib plate 309 is provided with a waist-shaped hole 308 communicating with the mounting hole 303, it should be noted that the waist-shaped hole 308 plays a role of pre-positioning, which can easily complete the installation by aligning the mounting hole 303 position with the bolt, providing convenience for installation operation, the reinforcing rib plate 309 improves the overall strength, and the bolt is not easy to be damaged in the process of multiple compression, prolonging the service life.

[0024] Referring to Figure 2 , the reinforcing rib plate 309 is in the shape of a semicircular cylinder, the diameter of the reinforcing rib plate 309 is equal to the width of the first lining plate 301, and the width of the first lining plate 301 and the second lining plate 302 is equal, it should be noted that the semicircular shape does not produce edges, so that the operator's hand touches the arc surface during installation or disassembly, which is not easy to cause harm.

[0025] Referring to Figure 4 , the discharge hole 306 is tapered in the inner side depth, and the front side and the rear side of the discharge hole 306 are in the shape of a waist, it should be noted that a plurality of discharge holes 306 with different lengths are used to ensure the overall strength and support the normal discharging process.

[0026] Working principle: eight outer ring plates 1 and eight inner ring plates 2 are placed in turn at the discharge end cover position, eight outer ring plates 1 and eight inner ring plates 2 are sequentially divided into annular, single inner ring plate 2 is arranged at the bottom of the sector edge side position of single outer ring plate 1, the first lining plate 301 and the second lining plate 302 on two adjacent outer ring plates 1 are matched into a complete sector, the first long slot 307 and the second long slot 3010 are matched into a shape similar to the discharge hole 306, the first lining plate 301 and the second lining plate 302 on two adjacent inner ring plates 2 are also matched into a complete sector, and then the whole eight outer ring plates 1 and eight inner ring plates 2 are installed to the discharge end cover distribution through the bolts matched with the installation hole 303.

[0027] It should be noted that in this text, relational terms such as first and second are used merely to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between such entities or actions. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that processes-methods-articles or equipment including a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes-methods-articles or equipment.

[0028] Although the embodiments of the present application have been shown and described, it is understood that various changes-modifications-replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A lattice plate for a lattice-type ball mill, comprising an outer ring plate (1) and an inner ring plate (2), characterized in that: The outer ring plate (1) and the inner ring plate (2) are respectively in the shape of a sector, and the side edges are respectively connected with mounting structures (3), the mounting structures (3) comprise first lining plates (301) and second lining plates (302), the outer ring plate (1) and the inner ring plate (2) are respectively fixedly connected with the first lining plates (301) at one side edge of the top position, the inner ring plate (2) is respectively fixedly connected with the second lining plates (302) at the other side edge of the bottom position, the first lining plates (301) and the second lining plates (302) are diagonally distributed, mounting holes (303) are formed in the surfaces of the first lining plates (301) and the second lining plates (302), and a plurality of discharge holes (306) are formed in the surfaces of the outer ring plate (1) and the inner ring plate (2) in the shape of a sector.

2. A lattice panel for a lattice-type ball mill according to claim 1, characterised in that: The bottom corners of the first lining plates (301) away from the side edges of the outer ring plate (1) are provided with outer circular chamfers (304), and the bottom corners of the other sides are provided with inner circular chamfers (305); the top corners of the second lining plates (302) away from the side edges of the outer ring plate (1) are provided with outer circular chamfers (304), and the top corners of the other sides are provided with inner circular chamfers (305).

3. A lattice panel for a lattice-type ball mill according to claim 1, characterized in that: The top side walls of the outer ring plate (1) are provided with two symmetrically arranged first long grooves (307), the bottom side walls of the inner ring plate (2) are provided with two symmetrically arranged second long grooves (3010), and the first long grooves (307) and the second long grooves (3010) are matched.

4. A lattice panel for a lattice-type ball mill according to claim 1, characterized in that: The first lining plates (301) and the second lining plates (302) are respectively fixedly connected with reinforcing rib plates (309) with matched lengths at the front ends, and the reinforcing rib plates (309) are provided with waist-shaped holes (308) in communication with the mounting holes (303).

5. A lattice panel for a lattice-type ball mill according to claim 4, characterised in that: The reinforcing rib plates (309) are in the shape of a semicircle, the diameter of the reinforcing rib plates (309) is equal to the width of the first lining plates (301), and the widths of the first lining plates (301) and the second lining plates (302) are equal.

6. A lattice panel for a lattice-type ball mill according to claim 1, characterized in that: The discharge holes (306) are tapered in the depth of the inner side, and the front side and the rear side of the discharge holes (306) are in the shape of a waist.

Images