CN216573386U - Anti-blocking partition plate and discharging grate plate device - Google Patents
Anti-blocking partition plate and discharging grate plate device Download PDFInfo
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- CN216573386U CN216573386U CN202122458506.5U CN202122458506U CN216573386U CN 216573386 U CN216573386 U CN 216573386U CN 202122458506 U CN202122458506 U CN 202122458506U CN 216573386 U CN216573386 U CN 216573386U
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Abstract
The utility model discloses an anti-blocking partition plate and a discharging grate plate device.A protective frame is a fan-shaped cast plate with a hollow-out structure in the middle, a rib plate is arranged at the middle position of the mounting surface of the protective frame along the radial direction, and a circular bolt hole wall is arranged at the middle position of the rib plate; the middle positions of two sides of the protection frame are integrally provided with half bolt hole walls with square outside and round inside, and the bolt hole walls protrude out of the surface of the mounting surface of the protection frame; a grid plate is fixedly arranged on one side of the using surface of the protective frame; the grate plate and the protection frame are of a split structure, so that the weight is reduced greatly compared with the traditional casting part, and the grate plate is more convenient to assemble, disassemble and maintain; the processing of the small-sized grate seam is facilitated, the grate seam is the processed arc-shaped long hole, different requirements of users on the size of the grate seam can be better met, the situation that the grinding body is clamped in the grate seam to cause blockage in the operation process of the grinding machine is reduced, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of ball mill equipment, and particularly relates to an anti-blocking partition plate and a discharging grid plate device.
Background
The ball mill is a key device for crushing materials, is widely applied to production industries of cement, silicate products, novel building materials, refractory materials, chemical fertilizers, black and non-ferrous metal ore dressing, glass ceramics and the like, and is used for dry or wet grinding of various ores and other grindable materials. The barrel of the ball mill consists of three cabin bodies, namely a drying cabin, a coarse grinding cabin and a fine grinding cabin, the coarse grinding cabin and the drying cabin are separated by a grid plate support, a bin separating plate and a ball baffle plate welded on the grid plate support, the bin separating plate is fixed on the grid plate support through bolts, and the grid plate support is fixed on the inner side of the cabin body through bolts. The partition plate and the discharge grid plate are used for isolating the grinding bodies (steel balls or steel forgings) and the materials from passing through in the cement processing process, and the materials passing through have the characteristics of certain humidity, viscosity, granularity and the like, so that the problems of screen gap blockage and mill pasting are frequently caused in the actual production, and the output per machine hour is reduced. Meanwhile, the effective ventilation area is reduced, the internal temperature of the equipment is further increased, the temperature of the bearing bush (or the bearing shoe) is also increased rapidly, and when the cooling speed is lower than the heating speed and reaches a hot spot, babbitt metal sheets on the surface layer of the bearing bush fall off to cause equipment failure. In addition, the high temperature in the equipment also influences the quality of products and brings difficulty to the next sharing, and the next procedure needs to be greatly improved in process parameters so as to change the current situation that the material blockage influences the yield and the ventilation.
As shown in figures 3-4, the grid plates in the existing cement mill are all steel castings, the grid gaps are in the form of bell-mouthed openings, the grid gaps at the feed end of the grid plates are narrow, the grid gaps at the discharge end of the grid plates are wide, when cracked or small-diameter grinding bodies (steel balls or steel forgings) are arranged in the mill, the grinding bodies can be clamped in the bell-mouthed openings of the grid gaps along with the flowing direction of wind in the mill, and the grinding bodies clamped in the grid gaps are difficult to fall off, so that the material passing capability of the grid plates is poor, the grid plates are blocked, the ventilation area is reduced, and the production capability of the mill is influenced. Meanwhile, because the grate plate is thick and heavy, the size of the grate gap cannot be too small due to the influence of materials and casting technology, so that the size of the grate gap is large, and a small grinding body can be clamped into the grate gap more easily. Therefore, the grate must be regularly cleaned in the mill, the shutdown cleaning time is long due to the high temperature in the mill, and the heavy grate plate is inconvenient to disassemble and assemble, so that the labor intensity is high, and the maintenance cost is increased.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an anti-blocking partition plate and a discharging grid plate device, which adopt a structure that a protective frame and a grid plate are combined in a split way, thereby reducing the weight of the grid plate, facilitating the disassembly and assembly of the grid plate and reducing the maintenance cost; the problems of blocking and grinding of the grate gaps of the partition plate and the discharge grate plate are avoided, and the yield is improved.
The technical scheme adopted by the utility model is as follows: an anti-blocking bin partition plate and a discharging grate plate device comprises a protective frame and a grate plate, wherein the protective frame is a fan-shaped cast plate with a hollow-out structure in the middle, a rib plate is arranged at the middle position of the mounting surface of the protective frame along the radial direction, and a circular bolt hole wall is arranged at the middle position of the rib plate; the middle positions of two sides of the protection frame are integrally provided with half bolt hole walls with square outside and round inside, and the bolt hole walls protrude out of the surface of the mounting surface of the protection frame; a grid plate is fixedly arranged on one side of the use surface of the protective frame.
The grid plate is a fan-shaped wear-resistant alloy steel plate, a through hole is formed in the middle of the grid plate, the grid plate penetrates through the wall of a circular bolt hole in a rib plate on one side of the using surface of the protective frame, and the grid plate is welded and fixed at a middle hollow part on one side of the using surface of the protective frame.
The grate plate is uniformly provided with grate slits which are arc-shaped long holes arranged along the radial direction of the grate plate.
The hole wall of the bolt is provided with a taper.
The anti-blocking partition plate and the discharging grate plate device are used as follows: according to the space size of the mill, a bin partition plate and a discharge grate plate are formed by combining protective frames and grate plates with different sizes, and the bin partition plate and the discharge grate plate are respectively fixed on a cylinder body or a discharge support of the mill through bolt holes in the protective frames by bolts. Along with the rotation of the mill, after the grinding body and the material enter the hollow space of the protective frame, fine powder formed after grinding by the grinding body passes through the grid gap on the grid plate under the action of negative pressure and lateral pressure and enters the next procedure, and the grinding body is blocked outside the grid plate because the structural size of the grinding body is far larger than the grid gap of the grid plate; in the grinding process, due to the protection of the protective frame and the rib plate, the impact abrasion to the grid plate is small, when the small grinding body is in contact with the grid plate, the small grinding body cannot enter due to the thin thickness and small grid gap of the grid plate, the ground fine powder material can quickly pass through the grid plate, the phenomena that the grid plate is blocked and the grinding is burnt are effectively avoided, the effective passing rate is increased, the ventilation in the mill is uniform, the air speed and the material flow rate are uniform, and the operation efficiency and the production yield of the mill are improved.
The protective frame is a fan-shaped cast plate with a hollow-out structure in the middle, and a rib plate is arranged at the middle position of the mounting surface of the protective frame along the radial direction; the purpose of this is: the protection frame is arranged to protect the grid plate and reduce the impact abrasion of the grinding body to the grid plate; secondly, the protective frame is of a middle hollow structure, and the reinforcing plate is additionally arranged, so that the weight of the original cast grate plate can be reduced, and the structural strength and durability of the cast grate plate can be ensured.
A circular bolt hole wall is arranged in the middle of the rib plate; the middle positions of two sides of the protection frame are integrally provided with half bolt hole walls with square outside and round inside, the bolt hole walls protrude out of the surface of the mounting surface of the protection frame, and the bolt hole walls are provided with tapers; the purpose of this is: the square and round bolt hole walls which are integrated with the protective frame are convenient for assembling the partition plate and the discharging grid plate device according to the installation size of the mill, the bolt hole walls are provided with tapers, the partition plate and the discharging grid plate device are convenient to fix on a cylinder body or a discharging support of the mill through bolt holes by bolts, and the installation precision and the working efficiency are improved.
A grid plate is fixedly arranged on one side of the using surface of the protective frame, the grid plate is a fan-shaped wear-resistant alloy steel plate, grid slits are uniformly distributed on the grid plate, and the grid slits are arc-shaped long holes formed along the radial direction of the grid plate; the purpose of this is: the grate plate is a wear-resistant alloy steel plate, the wear resistance of the grate plate is improved through special heat treatment, the thickness of the grate plate can be correspondingly reduced, the processing of small-sized grate seams is facilitated, and different requirements of users on the size of the grate seam can be better met; arc-shaped long holes are uniformly distributed on the grate plate along the radial direction of the grate plate, so that the flow area of the grate plate is increased, small grinding bodies cannot enter the grate plate due to the thin thickness and small grate gaps of the grate plate, ground fine powder materials can quickly pass through the grate plate, the phenomena that the grate plate is blocked and is pasted with the mill are effectively avoided, the effective passing rate is increased, the ventilation in the mill is uniform, and the operation efficiency and the production yield of the mill are improved; the grid plate and the protection frame are combined in a split mode, so that the maintenance is facilitated, when the local part of the grid plate is in a problem, the damaged grid plate can be replaced under the condition that the frame is not detached, and the labor intensity and the maintenance time of the maintenance are greatly reduced.
The utility model has the beneficial effects that: compared with the traditional casting grid plate, the device has the advantages that the anti-blocking partition plate and the discharging grid plate device are formed by welding the grid plate and the protective frame, and the wear resistance and the service life of the device are ensured by a special heat treatment mode; (1) compared with the traditional casting part, the weight is reduced greatly, and the grate plate and the protective frame are of a split structure, so that the disassembly, the assembly and the maintenance are more convenient; when the local part of the grid plate has a problem, the damaged grid plate can be replaced under the condition of not disassembling the frame, and the labor intensity and the maintenance time of maintenance are greatly reduced. (2) The outer side of the grid plate is provided with a protective frame which plays a role in protecting the grid plate and reducing friction; the frame protects the grid plate, so that the thickness of the grid plate can be thinned, small-sized grid seams can be processed, the grid seams are arc-shaped long holes processed, different requirements of users on the size of the grid seams can be better met, the situation that the grinding body is clamped in the grid seams to cause blockage in the operation process of the grinding machine is reduced through the structure, the unit passing area is greatly increased, the output of the grinding machine is greatly increased, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a use surface of an anti-blocking grate plate according to the utility model;
FIG. 2 is a schematic structural view of the installation surface of the anti-blocking grate plate according to the utility model;
FIG. 3 is a schematic structural view of a use surface of a prior art casting grate plate;
fig. 4 is a structural schematic view of a conventional cast grate plate mounting surface.
The labels in the figure are: 1. A protective frame; 2. a grid plate; 3. a rib plate; 4. performing grate joint; 5. the bolt hole wall.
Detailed Description
The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings.
As shown in fig. 1-2, an anti-blocking partition plate and discharge grate plate device comprises a protective frame 1 and a grate plate 2, wherein the protective frame 1 is a fan-shaped cast plate with a hollow-out structure in the middle, a rib plate 3 is arranged at the middle position of the mounting surface of the protective frame 1 along the radial direction, and a circular bolt hole wall 5 is arranged at the middle position of the rib plate 3; the middle positions of two sides of the protection frame 1 are integrally provided with half bolt hole walls 5 with square outside and round inside, and the bolt hole walls 5 protrude out of the surface of the mounting surface of the protection frame 1; a grid plate 2 is fixedly arranged on one side of the using surface of the protective frame 1.
The grate plate 2 is a fan-shaped wear-resistant alloy steel plate, a through hole is formed in the middle of the grate plate 2, the grate plate 2 penetrates through a circular bolt hole wall 5 on a rib plate 3 on one side of the use surface of the protective frame 1, and the grate plate is fixed to a middle hollow part on one side of the use surface of the protective frame 1 in a welding mode. The wear-resistant alloy steel plate after special treatment is adopted, the thickness of the grid plate 2 can be reduced, the grid plate 2 and the protective frame 1 are combined in a split mode, maintenance is facilitated, when the local part of the grid plate 2 goes wrong, the damaged grid plate 2 can be replaced under the condition that the protective frame 1 is not detached, and the labor intensity and the maintenance time of maintenance are greatly reduced.
The grate plate 2 is uniformly provided with grate slits 4, and the grate slits 4 are arc-shaped long holes formed along the radial direction of the grate plate 2. The thinned grid plate 2 is beneficial to processing the grid seam 4 with small size, and can better meet different requirements of users on the size of the grid seam 4. The arc-shaped long holes are uniformly distributed in the grate plate 2, so that the flow area of the grate plate 2 is increased, small grinding bodies cannot enter the grate plate 2 due to the thin thickness of the grate plate 2 and the small grate gaps 4, ground fine powder materials can quickly pass through the grate plate 2, the phenomena that the grate plate 2 is blocked and stuck to the inside of the mill are effectively avoided, the effective passing rate is increased, the ventilation in the mill is uniform, and the operation efficiency and the production yield of the mill are improved.
The bolt hole wall 5 is provided with a taper, so that the partition plate and the discharging grate plate device can be conveniently fixed on a cylinder body or a discharging support of the mill through the bolt hole by using a bolt, and the mounting precision and the working efficiency are improved.
The anti-blocking partition plate and the discharging grate plate device are used as follows: according to the space size of the mill, a protection frame 1 and a grid plate 2 with different sizes are combined in a split mode to form a partition plate and a discharge grid plate, and the partition plate and the discharge grid plate are fixed on a cylinder body or a discharge support of the mill through bolt holes in the protection frame 1 respectively. With the rotation of the mill, after the grinding body and the material enter the hollow space of the protective frame 1, under the action of negative pressure and lateral pressure, fine powder formed by grinding of the grinding body passes through the grate gap 4 on the grate plate 2 and enters the next procedure, and the grinding body is blocked outside the grate plate 2 because the structural size of the grinding body is far larger than the grate gap 4 of the grate plate 2; in the grinding process, due to the protection of the protective frame 1 and the rib plate 3, the impact abrasion to the grid plate 2 is small, when a small grinding body is contacted with the grid plate 2, the small grinding body cannot enter due to the thin thickness of the grid plate 2 and the small grid gaps 4, the ground fine powder material can quickly pass through the grid plate 2, the phenomena that the grid plate 2 is blocked and the grinding is burnt are effectively avoided, the effective passing rate is increased, the ventilation in the mill is uniform, the air speed and the material flow rate are uniform, and the operation efficiency and the production yield of the mill are improved.
Claims (4)
1. The utility model provides a prevent stifled partition panel and ejection of compact comb board device which characterized in that: the protective frame is a fan-shaped cast plate with a hollow structure in the middle, a rib plate is arranged at the middle position of the mounting surface of the protective frame along the radial direction, and a circular bolt hole wall is arranged at the middle position of the rib plate; the middle positions of two sides of the protection frame are integrally provided with half bolt hole walls with square outside and round inside, and the bolt hole walls protrude out of the surface of the mounting surface of the protection frame; a grid plate is fixedly arranged on one side of the use surface of the protective frame.
2. The anti-blocking partition plate and discharging grate plate device according to claim 1, characterized in that: the grid plate is a fan-shaped wear-resistant alloy steel plate, a through hole is formed in the middle of the grid plate, the grid plate penetrates through the wall of a circular bolt hole in a rib plate on one side of the using surface of the protective frame, and the grid plate is welded and fixed in a middle hollow part on one side of the using surface of the protective frame.
3. The anti-blocking partition plate and discharge grate device according to claim 1 or 2, characterized in that: the grate plates are uniformly provided with grate gaps which are arc-shaped long holes arranged along the radial direction of the grate plates.
4. The anti-blocking partition plate and discharging grate plate device according to claim 1, characterized in that: the hole wall of the bolt is provided with a taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122458506.5U CN216573386U (en) | 2021-10-13 | 2021-10-13 | Anti-blocking partition plate and discharging grate plate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122458506.5U CN216573386U (en) | 2021-10-13 | 2021-10-13 | Anti-blocking partition plate and discharging grate plate device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216573386U true CN216573386U (en) | 2022-05-24 |
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ID=81638947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122458506.5U Active CN216573386U (en) | 2021-10-13 | 2021-10-13 | Anti-blocking partition plate and discharging grate plate device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216573386U (en) |
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2021
- 2021-10-13 CN CN202122458506.5U patent/CN216573386U/en active Active
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