CN210079674U - Material blocking ring with material screening function for vertical mill and vertical mill - Google Patents
Material blocking ring with material screening function for vertical mill and vertical mill Download PDFInfo
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- CN210079674U CN210079674U CN201920757500.8U CN201920757500U CN210079674U CN 210079674 U CN210079674 U CN 210079674U CN 201920757500 U CN201920757500 U CN 201920757500U CN 210079674 U CN210079674 U CN 210079674U
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Abstract
The utility model belongs to building materials machinery especially relates to a grind immediately with keeping off material circle and found mill that has material screening function, grind immediately and install on grinding immediately with the fender material circle that has material screening function, it divide into entity part and screen cloth part to keep off the material circle, screen cloth part lower limb is fixed with entity part top edge. The utility model provides a reduce the material volume that gets into the lifting machine without grinding, reduce system's circulation load, save system's energy consumption, improve production efficiency's the upright mill with the fender material circle that has material screening function and found the mill.
Description
Technical Field
The utility model belongs to building materials machinery especially relates to a stand and grind with keeping off material ring and standing that has material screening function.
Background
The prior art and the defects are as follows:
in the traditional vertical mill grinding process, materials fall onto a grinding disc through a blanking inner cylinder, the grinding disc drives a grinding roller to rotate, and the grinding roller grinds and crushes the materials entering the grinding roller through hydraulic pressure and self weight; the ground materials are thrown out of the grinding disc and fall into the air ring under the action of centrifugal force generated by rotation of the grinding disc; at the air ring, the materials are brought into a vertical mill powder separator by air from bottom to top for classification, fine particle finished products are separated, coarser particles fall back to a mill disc for continuous grinding, and an internal circulation process is formed until the materials are ground to be used as finished products for separation.
The traditional vertical mill is widely applied to the fields of raw materials, coal, cement and the like, but the power consumption of the vertical mill is higher than that of mechanical hoisting due to wind power hoisting, so that the external circulation vertical mill system cancels wind power hoisting of materials in the vertical mill, changes the wind power hoisting into external mechanical hoisting of the vertical mill, and can effectively reduce the resistance and the power consumption of a fan.
Compared with an internal circulation vertical mill, the external circulation vertical mill separates the sorting function and the grinding function, and the ground materials are completely thrown out and then lifted to a powder concentrator by a lifter for sorting; however, as the grinding disc has a certain rotating speed, part of materials enter the hoister to the powder concentrator without being ground, so that the system circulation load is high, the electricity consumption of the hoister is high, and the powder concentration efficiency, the yield improvement and the like are further influenced. Therefore, how to reduce the amount of material (bypass amount) that enters the elevator without grinding and reduce the circulation load becomes a key technology for improving the production efficiency of the external circulation vertical mill.
The difficulty and significance for solving the technical problems are as follows:
therefore, based on the problems, the material blocking ring with the material screening function for the vertical mill and the vertical mill have important practical significance for reducing the amount of materials which enter the elevator without being ground, reducing the cyclic load of a system, saving the energy consumption of the system and improving the production efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reduce the material volume that gets into the lifting machine without grinding for solving the technical problem that exists among the well-known technique, reduce system's circulation load, save system's energy consumption, improve production efficiency's the vertical mill with the fender material circle that has material screening function.
Another object of the present invention is to provide a vertical mill for solving the technical problems in the prior art, which reduces the amount of material entering the elevator without grinding, reduces the cyclic load of the system, saves the energy consumption of the system, and improves the production efficiency.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be:
the utility model provides a found mill with keep off material circle that has material screening function, found mill is installed on found mill with keeping off material circle that has material screening function, it divide into entity portion and screen cloth part to keep off the material circle, screen cloth part lower limb is fixed with entity portion top edge.
The material falls on the mill of vertical mill through the unloading inner tube, and most material gets into the grinding roller and grinds, and a small part of material is not ground, and both break away from the mill under the effect of centrifugal force and sieve through the material ring that keeps off that has the screening function.
The utility model discloses can also adopt following technical scheme:
in the material blocking ring with the material screening function for the vertical mill, furthermore, the mesh diameter of the screen part is 60-90% of the maximum particle size of the new feed, the mesh area accounts for 65-95% of the screen area, and the height ratio of the screen part to the solid part is 0.6-1.2.
The ground fine particles can pass through the screen, while the large coarse particles which are not ground are prevented from being forcibly ground on the grinding disc, so that the effect of reducing the circulating load is realized, and the production efficiency of the vertical mill is improved.
In the material blocking ring with the material screening function for the vertical mill, the screen mesh parts are further multi-layered, one of the layers is fixed on the vertical mill and is marked as a fixed layer, and the screen mesh parts on different layers except the fixed layer are tied up and fixed on the fixed layer through iron wires from mesh holes.
The grid of the screening grid plate can be made into a single layer or multiple layers in any shape, when multiple layers are adopted, the size of the aperture is mainly adjusted, namely the aperture is the largest when the multiple layers are overlapped and arranged, the aperture is the smallest when the multiple layers are arranged in a staggered mode, the screen mesh is tied up and fixed by iron wires from the aperture position when the multiple layers are arranged, and the screen mesh is convenient to disassemble and adjust.
In the material blocking ring with the material screening function for the vertical mill, further, the solid part and the screen part are integrally formed, the thickness of the screen part is smaller than that of the solid part, and the screen part is arranged along the outer side of the solid part.
The structure is arranged, so that the screen part is protected from deformation or damage caused by extrusion in the vertical mill operation.
In the material blocking ring with the material screening function for the vertical mill, further, the inner side of the solid part adopts a build-up welding mode, namely a layer of wear-resistant material is welded on the inner surface of the material blocking ring.
In the material blocking ring with the material screening function for the vertical mill, further, the vertical mill comprises a grinding roller and a grinding disc, and the solid part is fixed on the outer edge of the grinding disc through bolts.
The inner side of the material blocking ring adopts a build-up welding mode and is fixed on the outer edge of the grinding disc through bolts.
The principle of the vertical mill is that a material layer with a certain thickness is formed on a grinding disc by materials, the grinding roller and the grinding disc are mutually extruded to grind the materials, and the material stop ring limits the materials to be positioned between the grinding roller and the grinding disc and not to be rapidly extruded, so that the grinding efficiency is improved.
The utility model provides a found mill, found mill is including the vertical mill body, found mill body and installed above-mentioned any the vertical mill with keep off the material circle that has material screening function.
To sum up, the utility model has the advantages of it is following and positive effect:
1. the utility model discloses be equipped with and keep off the material circle, keep off the material circle and have semi-restricted grinding (prevent that the material between grinding roller and mill from being extruded rapidly) and material screening function, can effectively reduce the material that does not grind and get into sorting system, reduce system circulation load.
2. The utility model discloses a keep off the material circle, remain more materials on the mill, improved grinding efficiency, increased the stability of system operation again.
3. The utility model relates to a rationally, manufacturing is simple, through changing the adjustable mill material granularity of aperture, two means of height-adjusting, and it is convenient that the mill material granularity is adjusted out in control, can obviously reduce material circulation load, and the energy-conserving effect of system is showing, has huge economic benefits.
Drawings
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is an installation schematic diagram of the tail ring.
In the figure:
1. the material blocking ring comprises a material blocking ring 2, a vertical mill 3, a solid part 4, a screen part 5, a grinding disc 6, a bolt 7 and a grinding roller.
Detailed Description
First, it should be noted that the material retaining ring with material screening function for vertical mill of the present invention and the specific structure, characteristics and advantages of the vertical mill will be specifically described below by way of examples, however, all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. In contrast, when an element is said to be "directly connected" to another element, it is intended that no intervening element is present.
Fig. 1 shows a perspective view of the present invention, and a front view of the present invention is shown by fig. 2, and an installation schematic diagram of the material retaining ring is shown by fig. 3, and the present invention is specifically described below with reference to fig. 1 to 3.
For further understanding of the contents, features and functions of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings as follows:
the utility model provides a stand to grind with keeping off material circle that has material screening function, stand to grind with keeping off material circle 1 that has material screening function and installed on grinding 2 immediately, keep off material circle 1 and divide into entity portion 3 and screen cloth portion 4, screen cloth portion 4 lower limb is fixed with entity portion 3 top edge.
The material falls on mill 5 of vertical mill 2 through the unloading inner tube, and most material gets into grinding roller 7 and grinds, and a small part of material is not ground, and both break away from mill 5 and sieve through the material stop ring 1 that has the screening function under the effect of centrifugal force.
Further, the utility model discloses in can also consider, the screen cloth aperture of screen cloth part 4 is 60 ~ 90% of the biggest granularity of new feed, and the mesh area accounts for 65 ~ 95% of screen cloth area, screen cloth part 4 and the solid portion 3 height ratio are 0.6 ~ 1.2.
The ground fine particles can pass through the screen, while the large coarse particles which are not ground are prevented from being forcibly ground on the grinding disc 5, so that the effect of reducing the circulating load is realized, and the production efficiency of the vertical mill 2 is improved.
Still further, it is also contemplated in the present disclosure that screen portion 4 is a plurality of layers, wherein one layer is fixed to vertical mill 2 and is designated as a fixed layer, and the other layers except the fixed layer are fixed to the fixed layer by tying up screen portions 4 of different layers with iron wires from mesh openings.
The grid of the screening grid plate can be made into a single layer or multiple layers in any shape, when multiple layers are adopted, the size of the aperture is mainly adjusted, namely the aperture is the largest when the multiple layers are overlapped and arranged, the aperture is the smallest when the multiple layers are arranged in a staggered mode, the screen mesh is tied up and fixed by iron wires from the aperture position when the multiple layers are arranged, and the screen mesh is convenient to disassemble and adjust.
It should be noted that the solid portion 3 and the screen portion 4 are integrally formed, the thickness of the screen portion 4 is smaller than that of the solid portion 3, and the screen portion 4 is arranged along the outer side of the solid portion 3.
The arrangement is such that the screen section 4 is protected from deformation or damage due to compression during operation of the vertical mill 2.
It should be noted that the inside of the solid part 3 is in a build-up welding form, that is, a layer of wear-resistant material is welded on the inner surface of the material stop ring 1.
It should be noted that the vertical mill 2 comprises a grinding roller 7 and a grinding disc 5, and the solid part 3 is fixed on the outer edge of the grinding disc 5 through a bolt 6.
The inner side of the material blocking ring 1 adopts a build-up welding mode and is fixed on the outer edge of the grinding disc 5 through a bolt 6. The bottom of the material blocking ring 1 is connected with a horizontal fixing plate, so that the material blocking ring 1 and the horizontal fixing plate are L-shaped, and the horizontal fixing plate is fixed on the outer edge of the grinding disc 5 through a bolt 6, as shown in the attached figure 3 of the specification.
The principle of the vertical mill 2 is that a material layer with a certain thickness is formed on the grinding disc 5 by materials, the grinding roller 7 and the grinding disc 5 extrude with each other to grind the materials, and the material blocking ring 1 limits the materials to be positioned between the grinding roller 7 and the grinding disc 5 and not extruded rapidly, so that the grinding efficiency is improved.
The utility model provides a found mill 2, found mill 2 is including the vertical mill body, found mill body and installed above-mentioned arbitrary the vertical mill with keep off material ring 1 that has material screening function.
The vertical mill 2 is provided with a material blocking ring 1 with a material screening function, the size of a screen is 60-90% of the maximum particle size of new feeding, the height ratio of a screen part 4 to an entity part 3 is 0.6-1.2, the area of meshes accounts for 65-95% of the area of the screen, and the screen is vertically connected with the outer side of the entity part 3 to form a whole.
The solid part 3 ensures that the material on the grinding disc 5 has a certain thickness.
The working process is as follows: the material falls to the millstone 5 through the blanking inner cylinder, one part of the material enters the grinding roller 7 for grinding, and the other part of the material screened by the screen mesh is separated from the millstone 5 under the action of centrifugal force. Due to the action of the material blocking ring 1, materials are effectively ground, and the screen mesh part 4 on the upper part of the material blocking ring 1 ensures that large coarse particles which are not ground are prevented from being on the grinding disc 5 to be forcibly ground, so that the circulating load is reduced, the material quantity of the grinding disc 5 is increased, and the grinding efficiency is improved.
To sum up, the utility model discloses can provide a reduction and do not grind the material volume that gets into the lifting machine, reduce system's circulation load, save system's energy consumption improves production efficiency's the vertical mill with the fender material circle that has the material screening function and vertical mill.
The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (7)
1. The utility model provides a found mill with keep off material circle that has material screening function which characterized in that: the vertical mill is installed on the vertical mill with a material blocking ring with a material screening function, the material blocking ring is divided into an entity part and a screen part, and the lower edge of the screen part is fixed with the upper edge of the entity part.
2. The material blocking ring with the material screening function for the vertical mill according to claim 1, is characterized in that: the screen mesh aperture of the screen mesh part is 60-90% of the maximum particle size of the new feed, the mesh area accounts for 65-95% of the screen mesh area, and the height ratio of the screen mesh part to the solid part is 0.6-1.2.
3. The material blocking ring with the material screening function for the vertical mill according to claim 1, is characterized in that: the screen mesh part is of multiple layers, wherein one layer is fixed on the vertical mill and marked as a fixed layer, and the other layers except the fixed layer are fixed on the fixed layer by binding different layers of screen mesh parts through iron wires from mesh holes.
4. The material blocking ring with the material screening function for the vertical mill according to claim 1, is characterized in that: the solid part and the screen part are integrally formed, the thickness of the screen part is smaller than that of the solid part, and the screen part is arranged along the outer side of the solid part.
5. The material blocking ring with the material screening function for the vertical mill according to claim 1, is characterized in that: the inner side of the solid part adopts a build-up welding mode, namely a layer of wear-resistant substance is welded on the inner surface of the material blocking ring.
6. The material blocking ring with the material screening function for the vertical mill according to claim 1, is characterized in that: the vertical mill comprises a grinding roller and a grinding disc, and the solid part is fixed on the outer edge of the grinding disc through bolts.
7. A vertical mill is characterized in that: the vertical mill comprises a vertical mill body, and the vertical mill body is provided with the material blocking ring with the material screening function for the vertical mill according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757500.8U CN210079674U (en) | 2019-05-23 | 2019-05-23 | Material blocking ring with material screening function for vertical mill and vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757500.8U CN210079674U (en) | 2019-05-23 | 2019-05-23 | Material blocking ring with material screening function for vertical mill and vertical mill |
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| Publication Number | Publication Date |
|---|---|
| CN210079674U true CN210079674U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920757500.8U Active CN210079674U (en) | 2019-05-23 | 2019-05-23 | Material blocking ring with material screening function for vertical mill and vertical mill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649133A (en) * | 2021-08-17 | 2021-11-16 | 北京电力设备总厂有限公司 | Wet vertical medium-speed mill |
| CN114643107A (en) * | 2022-04-02 | 2022-06-21 | 天津水泥工业设计研究院有限公司 | Manufacturing method of grinding roller material blocking assembly of vertical roller mill |
-
2019
- 2019-05-23 CN CN201920757500.8U patent/CN210079674U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649133A (en) * | 2021-08-17 | 2021-11-16 | 北京电力设备总厂有限公司 | Wet vertical medium-speed mill |
| CN114643107A (en) * | 2022-04-02 | 2022-06-21 | 天津水泥工业设计研究院有限公司 | Manufacturing method of grinding roller material blocking assembly of vertical roller mill |
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