CN212549966U - Cement grinding system - Google Patents
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- CN212549966U CN212549966U CN202021868463.7U CN202021868463U CN212549966U CN 212549966 U CN212549966 U CN 212549966U CN 202021868463 U CN202021868463 U CN 202021868463U CN 212549966 U CN212549966 U CN 212549966U
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Abstract
The utility model discloses a cement grinding system relates to the technical field of cement production, and comprises a vibrating screen, a steady flow constant weight bin, a roller press, a ball mill, a double-rotor powder concentrator, a stirring mill and a dust collecting system, wherein the undersize outlet of the vibrating screen is connected with the feed inlet of the ball mill, the oversize outlet is connected with the feed inlet of the steady flow constant weight bin, the discharge outlet of the steady flow constant weight bin is connected with the feed inlet of the roller press, and the discharge outlet of the roller press is connected with and returns to the vibrating screen; the top air outlet of the double-rotor powder concentrator is connected with a finished product collecting system, the waist discharge port is connected with the feed inlet of the stirring mill, the bottom discharge port is connected with the feed inlet of the ball mill, and the discharge port of the ball mill is connected with and returns to the feed inlet of the double-rotor powder concentrator. The utility model provides a cement grinding system can separate the material that does not need the roller press extrusion and does not need the ball mill to grind according to the material granularity difference; the process production flow is optimized, and the electric energy loss of the cement grinding system is greatly reduced.
Description
Technical Field
The utility model relates to a cement manufacture technical field, concretely relates to cement grinding system.
Background
Cement grinding is the final step in cement manufacture and also the step with the most power consumption. The main function of the cement mortar is to grind cement clinker to proper granularity, form a certain grain composition, increase the hydration area, accelerate the hydration rate and meet the requirements of setting and hardening of cement mortar. The reduction of the comprehensive power consumption in cement production has become a key focus of attention of cement enterprises.
The existing cement grinding technology usually adopts a combined grinding system, and the technological process comprises the steps of pre-grinding materials by a roller press, screening fine materials in the materials, feeding the fine materials into a ball mill for final grinding, and selecting finished products meeting requirements by a powder selecting machine and a dust collecting system. However, the system can cause some materials which do not need to be ground in advance to enter the roller press, so that the effective volume of the roller press is reduced, and the extrusion efficiency of the roller press is affected. The ball mill used by the system adopts an asynchronous motor driving system, and has the defects of high power consumption, large occupied area, high operation cost, low energy utilization rate, large installed power and the like. The powder concentrator used by the system is usually a two-separation powder concentrator, and unqualified materials are returned to the ball mill for continuous grinding, so that the capacity of the ball mill cannot be completely released, and the condition of low grinding efficiency exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems, the utility model provides a cement grinding system which can separate the materials which do not need to be extruded by a roller press and ground by a ball mill in time according to the different particle sizes of the materials; the electric energy loss of the ball mill is reduced by changing the driving mode; the powder concentrator is a three-separation powder concentrator, so that a part of materials which do not meet the requirements do not need to return to the ball mill for grinding, and the capacity of the ball mill can be released to a greater extent.
The utility model adopts the technical scheme as follows:
a cement grinding system comprises a vibrating screen, a steady flow constant weight bin, a roller press, a ball mill, a double-rotor powder concentrator, a stirring mill and a dust collecting system, wherein the vibrating screen comprises an upper screen outlet and a lower screen outlet, the lower screen outlet is connected with a feed inlet of the ball mill, the upper screen outlet is connected with a feed inlet of the steady flow constant weight bin, a discharge port of the steady flow constant weight bin is connected with a feed inlet of the roller press, and a discharge port of the roller press is connected with and returns to the vibrating screen; the double-rotor powder concentrator comprises a bottom discharge hole, a waist discharge hole and a top air outlet, wherein the top air outlet is connected with a finished product collecting system, the waist discharge hole is connected with a feed inlet of the stirring mill, the bottom discharge hole is connected with a feed inlet of the ball mill, and a discharge hole of the ball mill is connected with and returns to the feed inlet of the double-rotor powder concentrator.
Due to the adoption of the technical scheme, the part of the material reaching a certain granularity directly enters the ball mill through the vibrating screen without passing through a roller press, so that the extrusion effect of the roller press on large-grain-level materials is fully exerted; the powder concentrator is a three-separation powder concentrator, so that a part of intermediate-grade materials which do not meet the requirements of finished products do not need to return to the ball mill, but enter the stirring mill for grinding, the number of the intermediate-grade materials in the ball mill can be effectively reduced, the over-grinding phenomenon of the ball mill is effectively prevented, and the capacity of the ball mill can be released to a greater extent; the stirring mill is a high-efficiency energy-saving grinding device specially developed for a cement grinding system, and has the advantages of small floor area, high energy utilization rate, small installed power, low failure rate and the like compared with a ball mill.
Further, the lower structure of the double-rotor powder concentrator is in an O-Sepa powder concentrator structure type, and the upper structure of the double-rotor powder concentrator is in a double-separation powder concentrator structure type; the bottom discharge port is arranged on the O-Sepa powder concentrator structure, the waist discharge port is arranged on the side edge of the double-separation powder concentrator structure, and the top air outlet is arranged at the top of the double-separation powder concentrator structure.
By adopting the technical scheme, the structural style of the O-Sepa powder concentrator is combined with the structural style of the double-separation powder concentrator, so that the powder concentrator can realize three-separation powder concentration, the powder concentration efficiency of the structure is high, and the requirement of a cement grinding system on powder concentration can be met.
Further, finished product collecting system is including cyclone, bag collector and the main exhaust fan that is used for subsiding, the top air outlet of birotor powder concentrator and cyclone's air intake connection, cyclone's air outlet with bag collector's air intake connection, connect main exhaust fan behind the bag collector, main exhaust fan provides the selection powder power support for the air classification system of birotor powder concentrator.
By adopting the technical scheme, the dust concentration of the gas entering the dust collector is reduced through the cyclone separator, so that the filter bag of the bag type dust collector can be effectively protected.
Further, a discharge hole of the stirring mill, a discharge hole of the cyclone separator and a discharge hole of the bag type dust collector are respectively connected to a finished product air chute, and a discharge hole of the finished product air chute is connected with a feed inlet of a finished product hoister.
By adopting the technical scheme, the cement grinding system can obtain a cement finished product from the dust collecting system and also can obtain the cement finished product from the stirring mill. The production efficiency of the whole cement grinding system is improved.
And the dust collecting system comprises a dust collector and a dust collecting fan which are arranged behind the ball mill, and a tail grinding dust collector and a tail grinding dust collecting fan which are arranged behind the stirring mill.
By adopting the technical scheme, the flow velocity of the materials in the ball mill and the stirring mill is controlled by the dust collection system, so that the fineness of the milled materials is convenient to adjust.
Further, the ball mill is driven by a half-drive permanent magnet motor.
Under the condition of the same load and working system, the half-drive permanent magnet motor can save about 30% of electric energy loss compared with the traditional asynchronous motor driving system. Due to the adoption of the technical scheme, the electric energy loss of the ball mill can be effectively reduced, and the installed power is reduced.
Correspondingly, the utility model also discloses a cement grinding method, including following step:
A. screening the materials by a vibrating screen, separating the materials with the thickness of +3mm from the screen, conveying the materials to a roller press through a steady flow constant weight bin for extrusion, returning the extruded materials to the vibrating screen and screening the materials again along with newly fed raw materials; feeding the materials with the diameter of-3 mm to a ball mill through a sieve for grinding;
B. the materials ground by the ball mill are sent to a double-rotor powder concentrator for dynamic separation, wherein the materials with the diameter of plus 0.2mm return to the ball mill for continuous grinding, the materials with the diameter of minus 0.2mm to plus 0.08mm are sent to a stirring mill for grinding, and the materials with the diameter of minus 0.08mm are sent to a finished product collecting system;
C. and conveying the cement finished product ground by the stirring mill and the cement finished product obtained in the finished product collecting system into a finished product air chute, mixing, and conveying together for warehousing and storage.
Due to the adoption of the technical scheme, the part of the material with the thickness of-3 mm, which does not need to be pre-ground, does not need to pass through a roller press, and directly enters the ball mill through the vibrating screen, so that the extrusion effect of the roller press on large-grain-sized materials is fully exerted; the powder concentrator is a three-separation powder concentrator, so that intermediate-grade materials with-0.2 mm- +0.08mm and not meeting the requirement of a finished product do not need to return to the ball mill, but enter the stirring mill for grinding, the quantity of the intermediate-grade materials in the ball mill can be effectively reduced, the over-grinding phenomenon of the ball mill is effectively prevented, and the capacity of the ball mill is released to a greater extent; the stirring mill is a high-efficiency energy-saving grinding device specially developed for a cement grinding system, and has the advantages of small floor area, high energy utilization rate, small installed power, low failure rate and the like compared with a ball mill.
Further, when the step B is executed, the materials are conveyed to a feed port of an O-Sepa powder concentrator structure at the lower part of the double-rotor powder concentrator for separation, coarse materials with the thickness of +0.2mm are conveyed to a ball mill from a discharge port at the bottom of the O-Sepa powder concentrator structure, fine materials with the thickness of-0.2 mm are lifted to a double-separation powder concentrator structure at the upper part of the double-rotor powder concentrator along with air flow for secondary separation; after secondary separation, materials with the particle size of-0.2 mm- +0.08mm are conveyed to the stirring mill from a discharge hole at the waist part of the double-rotor powder concentrator, the materials with the particle size of-0.08 mm are conveyed to the cyclone separator along with airflow from an air outlet at the top part of the double-rotor powder concentrator to settle part of the materials, and the materials which cannot be settled enter the bag type dust collector along with the airflow.
By adopting the technical scheme, the structural style of the O-Sepa powder concentrator is combined with the structural style of the double-separation powder concentrator, so that the powder concentrator can realize three-separation powder concentration, the powder concentration efficiency of the structure is high, and the requirement of a cement grinding system on powder concentration can be met.
And further, when the step B is executed, a dust collecting system is arranged behind the ball mill and the stirring mill, the flow velocity of the materials in the ball mill and the stirring mill is controlled, dust received by the dust collecting system behind the ball mill and the ground materials are sent to the double-rotor powder concentrator together for screening, and dust received by the dust collecting system behind the stirring mill and the ground materials are sent to a finished product air chute together, are mixed with cement finished products in the finished product air chute and are conveyed together for storage.
By adopting the technical scheme, the dust collection system is arranged behind the ball mill and the stirring mill, so that the flow rate of materials in equipment can be controlled, and the fineness of the milled materials can be conveniently adjusted; the dust received by the dust collecting system after the ball mill and the stirring mill respectively enters the next process together with the material ground by the corresponding equipment, and the dust received by the dust collecting system is transported without independently arranging transportation equipment, so that the process arrangement of the cement grinding system is optimized, and the occupied area is saved.
Further, the ball mill in the step A and the step B is driven by a half-drive permanent magnet motor.
Under the condition of the same load and working system, the half-drive permanent magnet motor can save about 30% of electric energy loss compared with the traditional asynchronous motor driving system. Due to the adoption of the technical scheme, the electric energy loss of the ball mill can be effectively reduced, and the installed power is reduced.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses can isolate in advance and need not the extruded material of roll squeezer.
2. The utility model discloses a change the electric energy loss that the drive mode reduced the ball mill.
3. The utility model discloses selection powder machine is three separation selection powder machines, selects powder efficiently, can satisfy the demand of cement grinding system to selecting powder.
4. The utility model discloses can make partly material that reaches certain granularity requirement need not to return the ball mill and grind, can release ball mill productivity to bigger degree.
5. The utility model discloses optimized technology production flow, reduced the electric energy loss of cement grinding system by a wide margin.
Drawings
Fig. 1 is a schematic structural diagram of the cement grinding system of the present invention.
The labels in the figure are: 01-belt conveyer, 02-hoister, 03-vibrating screen, 04-steady flow constant weight bin, 05-roller press, 06-ball mill, 07-dust collector, 08-dust collecting fan, 09-first tail grinding hoister, 10-air conveying chute, 11-double rotor powder concentrator, 12-cyclone separator, 13-bag type dust collector, 14-main exhaust fan, 15-stirring mill, 16-tail grinding dust collector, 17-tail grinding dust collecting fan, 18-second tail grinding hoister, 19-finished product air chute and 20-finished product hoister.
Detailed Description
A cement grinding system is shown in figure 1 and comprises a vibrating screen 03, a steady flow constant weight bin 04, a roller press 05, a ball mill 06, a double-rotor powder concentrator 11, a stirring mill 15 and a dust collecting system, wherein the vibrating screen 03 comprises an oversize outlet and an undersize outlet, the undersize outlet is connected with a feed inlet of the ball mill 06, the oversize outlet is connected with a feed inlet of the steady flow constant weight bin 04, a discharge outlet of the steady flow constant weight bin 04 is connected with a feed inlet of the roller press 05, and a discharge outlet of the roller press 05 is connected with and returns to the vibrating screen 03 through a lifting machine 02; birotor selection powder machine 11 includes bottom discharge gate, waist discharge gate and top air outlet, wherein finished product collecting system is connected to the top air outlet, the feed inlet of stirring mill 15 is connected to the waist discharge gate, the feed inlet of ball mill 06 is connected to the bottom discharge gate, and the discharge gate of ball mill 06 is connected and is returned birotor selection powder machine 11's feed inlet through first mill tail lifting machine 09 and air delivery chute 10.
The part of the material reaching a certain granularity directly enters the ball mill 06 through the vibrating screen 03 without passing through the roller press 05, so that the extrusion effect of the roller press 05 on large-grain-level materials is fully exerted; the powder concentrator 11 is a three-separation powder concentrator, so that a part of intermediate-grade materials which do not meet the requirements of finished products do not need to return to the ball mill 06, but enter the stirring mill 15 for grinding, the number of the intermediate-grade materials in the ball mill 06 can be effectively reduced, the over-grinding phenomenon of the ball mill 06 can be effectively prevented, and the capacity of the ball mill 06 can be released to a greater extent; the stirring mill 15 is a high-efficiency energy-saving grinding device specially developed for a cement grinding system, and has the advantages of small floor area, high energy utilization rate, small installed power, low failure rate and the like compared with a ball mill 06.
The lower structure of the double-rotor powder concentrator 11 is in an O-Sepa powder concentrator structure type, and the upper structure of the double-rotor powder concentrator is in a double-separation powder concentrator structure type; the bottom discharge port is arranged on the O-Sepa powder concentrator structure, the waist discharge port is arranged on the side edge of the double-separation powder concentrator structure, and the top air outlet is arranged at the top of the double-separation powder concentrator structure.
Through combining O-Sepa selection powder machine structural style and two separation selection powder machine structural style for selection powder machine 11 can realize three separation selection powder, and this structure selection powder is efficient, can satisfy the demand of cement grinding system to the selection powder.
The finished product collecting system comprises a cyclone separator 12 for sedimentation, a bag type dust collector 13 and a main exhaust fan 14, an air outlet at the top of the double-rotor powder concentrator 11 is connected with an air inlet of the cyclone separator 12, an air outlet of the cyclone separator 12 is connected with an air inlet of the bag type dust collector 13, the concentration of gas entering the bag type dust collector 13 is reduced through the cyclone separator 12, and a filter bag of the bag type dust collector 13 can be effectively protected. The rear part of the bag type dust collector 13 is connected with a main exhaust fan 14, and the main exhaust fan 14 provides power support for powder selection for a winnowing system of the double-rotor powder concentrator 11.
And a discharge hole of the stirring mill 15 is connected to a finished product air chute 19, a discharge hole of the cyclone separator 12 and a discharge hole of the bag type dust collector 13 through a second mill tail elevator 18 and is respectively connected to the finished product air chute 19, and a discharge hole of the finished product air chute 19 is connected with a feed inlet of a finished product elevator 20.
The device further comprises a dust collecting system, wherein the dust collecting system comprises a dust collector 07 and a dust collecting fan 08 which are arranged behind the ball mill 06, and a tail grinding dust collector 16 and a tail grinding dust collecting fan 17 which are arranged behind the stirring mill 15. The flow velocity of the materials in the ball mill 06 and the stirring mill 15 is controlled by a dust collecting system, so that the fineness of the milled materials is conveniently adjusted.
The ball mill 06 is driven by a semi-driving permanent magnet motor. Under the condition of the same load and working system, the half-drive permanent magnet motor can save about 30% of electric energy loss compared with the traditional asynchronous motor driving system.
Compared with the existing combined grinding system, the cement grinding system provided by the embodiment can save 20-25% of electric energy loss, and has a wide application prospect.
Correspondingly, the embodiment also provides a cement grinding method, as shown in fig. 1, including the following steps:
A. clinker, gypsum and mixed materials required by cement preparation are prepared according to a certain proportion and then are conveyed to a cement grinding workshop by a belt conveyor 01. The mixture is lifted by a lifter 02 and discharged into a vibrating screen 03; screening the materials by a vibrating screen 03, separating the materials with the diameter of +3mm from the screen, conveying the materials to a roller press 05 through a steady flow constant weight bin 04 for extrusion, returning the extruded materials to the vibrating screen 03 through a lifting machine 02, and screening the materials again along with the newly fed raw materials; the materials with the diameter of-3 mm are sent to a ball mill 06 for grinding through a sieve;
B. the materials ground by the ball mill 06 are sent to a double-rotor powder concentrator 11 for dynamic separation, wherein the materials with the diameter of +0.2mm are returned to the ball mill 06 for continuous grinding, the materials with the diameter of-0.2 mm to +0.08mm are sent to a stirring mill 15 for grinding, and the materials with the diameter of-0.08 mm are sent to a finished product collection system;
C. and conveying the cement finished product ground by the stirring mill 15 into a finished product air chute 19 through a second mill tail lifting machine 18, mixing the cement finished product ground by the stirring mill 15 with the cement finished product obtained in the finished product collecting system in the finished product air chute 19, and conveying the mixture together for storage.
The part of the material with the thickness of-3 mm, which does not need to be pre-ground, directly enters the ball mill 06 through the vibrating screen 03 without passing through the roller press 05, and the extrusion effect of the roller press 05 on the large-grain-level material is fully exerted; the powder concentrator 11 is a three-separation powder concentrator, so that intermediate-grade materials with-0.2 mm- +0.08mm and not meeting the requirements of the finished products do not need to return to the ball mill 06, but enter the stirring mill 15 for grinding, the quantity of the intermediate-grade materials in the ball mill 06 can be effectively reduced, the over-grinding phenomenon of the ball mill 06 can be effectively prevented, and the capacity of the ball mill 06 can be released to a greater extent; the stirring mill 15 is a high-efficiency energy-saving grinding device specially developed for a cement grinding system, and has the advantages of small floor area, high energy utilization rate, small installed power, low failure rate and the like compared with a ball mill 06.
When the step B is executed, the materials are conveyed to a feed port of an O-Sepa powder concentrator structure at the lower part of the double-rotor powder concentrator 11 for separation, coarse materials with the thickness of +0.2mm are conveyed to a ball mill 06 from a discharge port at the bottom of the O-Sepa powder concentrator structure, and fine materials with the thickness of-0.2 mm are lifted to a double-separation powder concentrator structure at the upper part of the double-rotor powder concentrator 11 along with air flow for secondary separation; after secondary separation, materials with the thickness of-0.2 mm- +0.08mm are conveyed to the stirring mill 15 from a discharge hole at the waist part of the double-rotor powder separator 11, materials with the thickness of-0.08 mm are conveyed to the cyclone separator 12 from an air outlet at the top of the double-rotor powder separator 11 along with air flow to carry out sedimentation on partial materials, and materials which cannot be sedimented enter the bag type dust collector 13 along with the air flow.
When step B is executed, a dust collecting system is arranged behind the ball mill 06 and the stirring mill 15, and comprises a dust collector 07 and a dust collecting fan 08 which are arranged behind the ball mill 06, and a tail grinding dust collector 16 and a tail grinding dust collecting fan 17 which are arranged behind the stirring mill 15, so that the flow velocity of materials in the ball mill 06 and the stirring mill 15 is controlled, and the fineness of the ground materials is conveniently adjusted. And the dust received by the dust collection system after the ball mill 06 and the ground materials are conveyed to a double-rotor powder concentrator 11 through a first mill tail elevator 09 and an air conveying chute 10 for screening, the dust received by the dust collection system after the stirring mill 15 and the ground materials are conveyed to a finished product air chute 19 through a second mill tail elevator 18, and are mixed with cement finished products in the finished product air chute 19 and then conveyed together for storage.
Dust received by the dust collecting system after the ball mill 06 and the stirring mill 15 and materials ground by corresponding equipment enter the next process step respectively, and a transport device is not required to be arranged independently for transporting the dust received by the dust collecting system specially, so that the process arrangement of the cement grinding system is optimized, and the occupied area is saved.
The ball mill 06 in the step a and the step B is driven by a half-drive permanent magnet motor.
The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (6)
1. The utility model provides a cement grinding system, it includes shale shaker (03), stationary flow constant weight storehouse (04), roller press (05), ball mill (06), birotor selection powder machine (11), stirring mill (15) and dust collecting system, its characterized in that: the vibrating screen (03) comprises an upper screen outlet and a lower screen outlet, wherein the lower screen outlet is connected with a feed inlet of the ball mill (06), the upper screen outlet is connected with a feed inlet of the steady flow constant weight bin (04), a discharge outlet of the steady flow constant weight bin (04) is connected with a feed inlet of the roller press (05), and a discharge outlet of the roller press (05) is connected with and returns to the vibrating screen (03); birotor selection powder machine (11) are including bottom discharge gate, waist discharge gate and top air outlet, wherein finished product collecting system is connected to the top air outlet, the feed inlet of stirring mill (15) is connected to the waist discharge gate, the feed inlet of ball mill (06) is connected to the bottom discharge gate, and the feed inlet of birotor selection powder machine (11) is connected and returns to the discharge gate of ball mill (06).
2. The cement grinding system as set forth in claim 1, characterized in that: the lower structure of the double-rotor powder concentrator (11) is in an O-Sepa powder concentrator structure type, and the upper structure of the double-rotor powder concentrator is in a double-separation powder concentrator structure type; the bottom discharge port is arranged on the O-Sepa powder concentrator structure, the waist discharge port is arranged on the side edge of the double-separation powder concentrator structure, and the top air outlet is arranged at the top of the double-separation powder concentrator structure.
3. A cement grinding system as set forth in claim 1 or 2, characterized in that: finished product collection system is including cyclone (12), bag collector (13) and main exhaust fan (14) that are used for subsiding, the top air outlet of birotor selection powder machine (11) and the air intake connection of cyclone (12), the air outlet of cyclone (12) with the air intake connection of bag collector (13), main exhaust fan (14) is connected behind bag collector (13), main exhaust fan (14) provide selection powder power support for the air classification system of birotor selection powder machine (11).
4. The cement grinding system as set forth in claim 3, characterized in that: and a discharge hole of the stirring mill (15), a discharge hole of the cyclone separator (12) and a discharge hole of the bag type dust collector (13) are respectively connected to a finished product air chute (19), and a discharge hole of the finished product air chute (19) is connected with a feed inlet of a finished product hoister (20).
5. The cement grinding system as set forth in claim 3, characterized in that: the device is characterized by further comprising a dust collecting system, wherein the dust collecting system comprises a dust collector (07) and a dust collecting fan (08) which are arranged behind the ball mill (06), and a tail grinding dust collector (16) and a tail grinding dust collecting fan (17) which are arranged behind the stirring mill (15).
6. The cement grinding system as set forth in claim 1, characterized in that: the ball mill (06) is driven by a semi-driving permanent magnet motor.
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| CN202021868463.7U CN212549966U (en) | 2020-08-31 | 2020-08-31 | Cement grinding system |
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| CN202021868463.7U CN212549966U (en) | 2020-08-31 | 2020-08-31 | Cement grinding system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921681A (en) * | 2020-08-31 | 2020-11-13 | 成都利君实业股份有限公司 | Cement grinding system and method |
| CN114950692A (en) * | 2022-05-23 | 2022-08-30 | 山东棱角建材科技有限公司 | Double-closed-circuit semi-final grinding process method and process system thereof |
-
2020
- 2020-08-31 CN CN202021868463.7U patent/CN212549966U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921681A (en) * | 2020-08-31 | 2020-11-13 | 成都利君实业股份有限公司 | Cement grinding system and method |
| CN114950692A (en) * | 2022-05-23 | 2022-08-30 | 山东棱角建材科技有限公司 | Double-closed-circuit semi-final grinding process method and process system thereof |
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