CN212975447U - Cement grinding system - Google Patents
Cement grinding system Download PDFInfo
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- CN212975447U CN212975447U CN202021651912.2U CN202021651912U CN212975447U CN 212975447 U CN212975447 U CN 212975447U CN 202021651912 U CN202021651912 U CN 202021651912U CN 212975447 U CN212975447 U CN 212975447U
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- powder concentrator
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- cement
- discharge hole
- feed inlet
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Abstract
The utility model discloses a cement grinding system, which comprises a raw material bin, a material stabilizing bin, a roller press, a static powder concentrator, a dynamic powder concentrator, a first dust collector, a finished product bin and a cement mill; the discharge hole of the raw material bin is connected with the feed inlet of the material stabilizing bin; the discharge hole of the material stabilizing bin is connected with the feed inlet of the roller press; the discharge hole of the roller press is connected with the feed inlet of the static powder concentrator; the discharge hole of the static powder concentrator is communicated with the feed inlet of the material stabilizing bin; the air outlet of the static powder concentrator is communicated with the feed inlet of the dynamic powder concentrator; the air outlet of the dynamic powder concentrator is communicated with the air inlet of the first dust collector; and a discharge hole of the first dust collector is connected with a feed inlet of the finished product bin. The utility model has the advantages that the structure is simple, the implementation is easy, the grinding efficiency of the cement mill is improved, the energy consumption of the cement mill is reduced, and the quality of subsequent cement products is ensured; energy consumption is saved, and production cost is reduced.
Description
The technical field is as follows:
the utility model relates to a cement field of making, in particular to cement grinding system.
Background art:
at present, most cement enterprises adopt the typical process at present in the cement grinding stage: the cement production raw materials are mixed by a batching station and then are conveyed to a roller press by conveying equipment for crushing, and the crushed materials are conveyed into a cement mill by the conveying equipment and are milled into finished products.
The following problems exist by adopting the process: 1. the sizes of material particles crushed by the roller press are different, the larger particles enter the cement mill for milling, the milling energy consumption of the cement mill is increased, and the sizes of cement particles milled by the mill are not uniform, so that the quality of subsequent products is influenced; 2. the raw materials crushed by the roller press contain fine cement particles meeting the requirements of cement finished products, and the part of materials enter the cement mill to be repeatedly ground, so that no significance is realized, the energy consumption can be increased, and the grinding efficiency of the cement mill is reduced; 3. and the fine powder is easy to form electrostatic dust in the cement mill, and has great influence on the grinding efficiency of the cement mill.
The utility model has the following contents:
an object of the utility model is to provide a simple structure has improved cement crocus mill efficiency, and has reduced the cement grinding system of cement mill energy consumption.
The utility model discloses by following technical scheme implement: a cement grinding system comprises a raw material bin, a material stabilizing bin, a roller press, a static powder concentrator, a dynamic powder concentrator, a first dust collector, a finished product bin and a cement mill; the discharge hole of the raw material bin is connected with the feed inlet of the material stabilizing bin; the discharge hole of the material stabilizing bin is connected with the feed inlet of the roller press; the discharge hole of the roller press is connected with the feed inlet of the static powder concentrator; the discharge hole of the static powder concentrator is communicated with the feed inlet of the material stabilizing bin; the gas outlet of the static powder concentrator is communicated with the feed inlet of the dynamic powder concentrator; the air outlet of the dynamic powder concentrator is communicated with the air inlet of the first dust collector; the discharge hole of the first dust collector is connected with the feed inlet of the finished product bin; the discharge hole of the dynamic powder concentrator is connected with the feed inlet of the cement mill; and the discharge hole of the cement mill is communicated with the feed inlet of the dynamic powder concentrator.
Furthermore, the discharge hole of the cement mill is connected with the feed inlet of the finished product bin.
Further, the system also comprises a first induced draft fan; the gas outlet of the first dust collector is communicated with the gas inlet of the first draught fan, and the gas outlet of the first draught fan is communicated with the emptying pipe and the gas inlet of the static powder concentrator respectively.
Further, the system also comprises a second dust collector and a second induced draft fan; the air outlet of the cement mill is communicated with the air inlet of the second dust collector, and the air outlet of the second dust collector is communicated with the air inlet of the second induced draft fan; and a discharge hole of the second dust collector is respectively communicated with the dynamic powder concentrator and a feed hole of the finished product bin.
Furthermore, a valve is arranged at a discharge hole of the static powder concentrator.
The utility model has the advantages that:
1. the utility model has simple structure and easy realization, selects large-particle raw materials through the static powder concentrator and sends the raw materials to the roller press again for crushing, selects fine cement materials through the dynamic powder concentrator and sends the fine cement materials to the first dust collector for collection, and the fine cement materials are sent to a finished product bin as cement products; materials with moderate particles enter the cement mill to be milled, so that the milling efficiency of the cement mill is improved, the energy consumption of the cement mill is reduced, and the quality of subsequent cement products is ensured;
2. the dynamic powder concentrator selects out fine cement materials, thereby avoiding electrostatic dust in the cement mill and greatly improving the grinding efficiency of the cement mill;
3. when the material stabilizing bin needs to be maintained, a valve at the discharge port of the static powder concentrator can be closed, materials in the material stabilizing bin are conveyed to the static powder concentrator, the materials are conveyed to a subsequent cement mill through winnowing, the cement mill is prevented from idling for too long time, energy consumption is saved, and production cost is reduced.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
The device comprises a raw material bin 1, a stable material bin 2, a roller press 3, a static powder concentrator 4, a dynamic powder concentrator 5, a first dust collector 6, a finished product bin 7, a cement mill 8, a first induced draft fan 9, a second dust collector 10, a second induced draft fan 11, a valve 12 and an emptying pipe 13.
The specific implementation mode is as follows:
as shown in fig. 1, a cement grinding system comprises a raw material bin 1, a material stabilizing bin 2, a roller press 3, a static powder concentrator 4, a dynamic powder concentrator 5, a first dust collector 6, a finished product bin 7, a cement mill 8, an air blower 9, a first induced draft fan 9, a second dust collector 10 and a second induced draft fan 11; the discharge hole of the raw material bin 1 is connected with the feed inlet of the material stabilizing bin 2; the discharge hole of the material stabilizing bin 2 is connected with the feed inlet of the roller press 3; the discharge hole of the roller press 3 is connected with the feed inlet of the static powder concentrator 4; the discharge hole of the static powder concentrator 4 is communicated with the feed inlet of the stable material bin 2, and a valve 12 is arranged at the discharge hole of the static powder concentrator 4; the air outlet of the static powder concentrator 4 is communicated with the feed inlet of the dynamic powder concentrator 5; the air outlet of the dynamic powder concentrator 5 is communicated with the air inlet of the first dust collector 6; a discharge hole of the first dust collector 6 is connected with a feed inlet of the finished product bin 7; the discharge hole of the dynamic powder concentrator 5 is connected with the feed inlet of the cement mill 8, and the dynamic powder concentrator 5 concentrates out fine cement materials, so that electrostatic dust in the cement mill 8 is avoided, and the grinding efficiency of the cement mill 8 is greatly improved; the discharge hole of the cement mill 8 is respectively communicated with the feed inlets of the dynamic powder concentrator 5 and the finished product bin 7.
The gas outlet of the first dust collector 6 is communicated with the gas inlet of a first induced draft fan 9, and the gas outlet of the first induced draft fan 9 is respectively communicated with the emptying pipe 13 and the gas inlet of the static powder concentrator 4.
An air outlet of the cement mill 8 is communicated with an air inlet of a second dust collector 10, and an air outlet of the second dust collector 10 is communicated with an air inlet of a second induced draft fan 11; and a discharge hole of the second dust collector 10 is respectively communicated with feed inlets of the dynamic powder concentrator 5 and the finished product bin 7.
The working principle is as follows: the raw materials in the raw material bin 1 are sent into a material stabilizing bin 2, the material stabilizing bin 2 sends the materials into a roller press 3 periodically for crushing, the crushed materials are subjected to powder selection by a static powder selector 4, small-particle materials are blown into a dynamic powder selector 5, and large-particle materials are discharged from a discharge hole at the bottom of the static powder selector 4 and return into the material stabilizing bin 2; the dynamic powder concentrator 5 is used for concentrating the powder again, fine materials enter the first dust collector 6 along with the wind to be collected, and the collected cement powder is sent to the finished product bin 7 as a finished product, so that the grinding efficiency of the cement mill 8 is improved, the energy consumption of the cement mill 8 is reduced, and the quality of subsequent cement products is ensured; after air from the first dust collector 6 is pumped out by a first induced draft fan 9, one part of the air is discharged outside, the other part of the air is sent to the static powder concentrator 4 for air separation, and the air enters the dynamic powder concentrator 5 along with the materials for air separation, so that the repeated cyclic utilization of the air is realized; the large particles fall into the cement mill 8 from the bottom of the dynamic powder concentrator 5 for milling, and the milled cement powder is discharged from a discharge hole of the cement mill 8 and then enters the dynamic powder concentrator 5 for powder concentration; the gas discharged from the cement mill 8 is discharged after being filtered by a second dust collector 10, and the filtered and collected material is sent to a dynamic powder concentrator 5 for powder concentration; the cement powder ground by the cement mill 8 and the materials collected by the second dust collector 10 can also be sent to the finished product bin 7 as cement products.
When the material stabilizing bin 2 needs to be maintained, a valve 12 at a discharge port of the static powder concentrator 4 can be closed, materials in the material stabilizing bin 2 are sent to the static powder concentrator 4, then the materials are sent to a subsequent cement mill 8 through air separation, the materials in the material stabilizing bin 2 can be emptied only by idle running of the cement mill 8 for about 20 minutes before, the materials are easily flushed, and hidden dangers exist in the cement mill 8; after the change, the cement mill 8 is only required to be in idle running for 2 minutes, the 18-minute idle running of the cement mill 8 is reduced, and after the measurement, calculation and maintenance are carried out once, the production power consumption of 2000 ℃ can be saved by the material stabilizing bin 2; avoid 8 idle running time overlengths of cement mill, practice thrift the energy consumption, reduction in production cost, the utility model discloses simple structure easily realizes.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A cement grinding system is characterized by comprising a raw material bin, a material stabilizing bin, a roller press, a static powder concentrator, a dynamic powder concentrator, a first dust collector, a finished product bin and a cement mill;
the discharge hole of the raw material bin is connected with the feed inlet of the material stabilizing bin; the discharge hole of the material stabilizing bin is connected with the feed inlet of the roller press;
the discharge hole of the roller press is connected with the feed inlet of the static powder concentrator; the discharge hole of the static powder concentrator is communicated with the feed inlet of the material stabilizing bin; the gas outlet of the static powder concentrator is communicated with the feed inlet of the dynamic powder concentrator;
the air outlet of the dynamic powder concentrator is communicated with the air inlet of the first dust collector; the discharge hole of the first dust collector is connected with the feed inlet of the finished product bin;
the discharge hole of the dynamic powder concentrator is connected with the feed inlet of the cement mill; and the discharge hole of the cement mill is communicated with the feed inlet of the dynamic powder concentrator.
2. The cement grinding system according to claim 1, wherein a discharge port of the cement mill is connected to a feed port of the finished product bin.
3. The cement grinding system according to claim 1, further comprising a first induced draft fan;
the gas outlet of the first dust collector is communicated with the gas inlet of the first draught fan, and the gas outlet of the first draught fan is communicated with the emptying pipe and the gas inlet of the static powder concentrator respectively.
4. The cement grinding system according to any one of claims 1 to 3, further comprising a second dust collector and a second induced draft fan; the air outlet of the cement mill is communicated with the air inlet of the second dust collector, and the air outlet of the second dust collector is communicated with the air inlet of the second induced draft fan;
and a discharge hole of the second dust collector is respectively communicated with the dynamic powder concentrator and a feed hole of the finished product bin.
5. A cement grinding system according to any one of claims 1 to 3, wherein a valve is provided at a discharge port of the static powder concentrator.
6. A cement grinding system according to claim 4, characterized in that a valve is provided at the discharge port of the static powder concentrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021651912.2U CN212975447U (en) | 2020-08-10 | 2020-08-10 | Cement grinding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021651912.2U CN212975447U (en) | 2020-08-10 | 2020-08-10 | Cement grinding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212975447U true CN212975447U (en) | 2021-04-16 |
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ID=75432064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021651912.2U Active CN212975447U (en) | 2020-08-10 | 2020-08-10 | Cement grinding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212975447U (en) |
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2020
- 2020-08-10 CN CN202021651912.2U patent/CN212975447U/en active Active
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