CN110523501A - A kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system - Google Patents
A kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system Download PDFInfo
- Publication number
- CN110523501A CN110523501A CN201810516032.5A CN201810516032A CN110523501A CN 110523501 A CN110523501 A CN 110523501A CN 201810516032 A CN201810516032 A CN 201810516032A CN 110523501 A CN110523501 A CN 110523501A
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- Prior art keywords
- powder
- mill
- vertical mill
- raw material
- type static
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/14—Edge runners, e.g. Chile mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
Abstract
The invention discloses select powder grinding process system outside a kind of full outer circulation raw material vertical mill mill, including powder selection device, vertical mill and transportation system, powder selection device includes double charging V-type static powder separating machines and high-efficiency dynamic powder concentrator, double charging V-type static powder separating machine feed inlets are connected to raw meal proportioning library, double charging V-type static powder separating machines are connect with high-efficiency dynamic powder concentrator and vertical mill respectively, wherein extra quality V-type static powder separating machine fine powder enters in high-efficiency dynamic powder concentrator, coarse fodder enters vertical mill, the transportation system includes rotoclone collector, No. two air flumes, fine powder enters rotoclone collector in high-efficiency dynamic powder concentrator, rotoclone collector is delivered to warehouse for finished product through No. two air flumes, material is delivered to by double charging V-type static powder separating machines by circulating lifting machine in the discharge port of vertical mill.The system is by material grinding and powder, drying to be selected to separate, and improves the efficiency of dynamic powder concentrator, powder system resistance is selected in reduction.
Description
Technical field
The invention belongs to a kind of cement industry raw material vertical milling grinding system, specifically a kind of full outer circulation raw material vertical mill
Mill is outer to select powder grinding process system.
Background technique
In raw grinding field, the milling equipment of early stage is ball mill, but ball mill capacity usage ratio is low, mill efficiency
Low, system unit power consumption height.As market competition becomes increasingly fierce, selecting powder raw material vertical mill due to its capacity usage ratio in mill
The advantages such as height, mill efficiency are high, system unit power consumption is low gradually replace ball mill to set as whole grinding in the market in raw grinding
It is standby.Select powder vertical mill since its significant energy-saving advantage is recognized in raw grinding field in mill for a long time, but in grinding
Select powder raw material vertical mill as end milling equipment, there is also many shortcomings for grinding system: being passed through by the material of grinding
The effect of rotating grinding board centrifugal force, which enters, carries out first time classification at the nozzle ring ring that high-speed flow from bottom to top passes through, then
It is brought into built-in powder concentrator and is classified by eddy airstream for second of progress, the interior circulation in mill of the unqualified particle after milling,
Cause grinding machine inlet outlet pressure differential and resistance to rise, grinds interior pressure difference and be up to 6000~8000Pa, some reaches 10000Pa, leads to wind
Total pressure needed for machine is high, reaches 11500Pa, therefore fan energy consumption consumed by system is high；Since internal basin forms high speed gas-solid two
Xiang Liu, opposite grinding roll sleeve, mill inner housing liner plate cause very big abrasion, and wear-out part need to be replaced often；It is complete as needed for blower
Pressure is high, causes material size to run thick, and finish fineness is more difficult to control, brings great inconvenience to production and maintenance.
In response to the slogan of national energy-saving consumption reduction, in order to solve to select powder vertical mill as eventually in raw grinding field is ground
The drawbacks of milling equipment generates, Hefei Central Asia equipment for building materiaIs Co., Ltd, which releases, selects powder outside a kind of full outer circulation vertical mill
Technological transformation scheme achieves very big energy conservation and consumption reduction effects, and system unit power consumption reduces about 3~4kWh/t, obtained client
Height affirmative.In order to further increase the grinding efficiency of process system, reduce system power consumption, for full outer circulation raw material vertical
Be milled grinding system and raw material substance characteristics, designs that a kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system just especially
Necessity, the application are exactly to come into being in this context.
Summary of the invention
The purpose of the present invention is propose that a kind of full outer circulation raw material are vertical for the deficiency for selecting powder vertical mill technology in existing mill
Formula mill mill is outer to select powder grinding process system, which has given full play to the mill efficiency of raw material vertical mill, improved and select powder
System level efficiency largely reduces aidr bells blast system resistance, realizes energy conservation.
To achieve the goals above, the technical solution used in the present invention is:
A kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system, including powder selection device, vertical mill and conveying
System, the powder selection device include that double charging V-type static powder separating machines and high-efficiency dynamic powder concentrator, double charging V-type static state select powder
Machine inlet is connected to raw meal proportioning library, and double charging V-type static powder separating machines are connect with high-efficiency dynamic powder concentrator and vertical mill respectively,
In double charging V-type static powder separating machine fine powders enter in high-efficiency dynamic powder concentrator, coarse fodder enters vertical mill, the transportation system packet
Rotoclone collector, No. two air flumes are included, fine powder enters rotoclone collector in high-efficiency dynamic powder concentrator, and rotoclone collector is through No. two
Air flume is delivered to warehouse for finished product, and material is delivered to double charging V-types static state by circulating lifting machine in the discharge port of vertical mill
Powder concentrator.
Deslagging belt feeder is equipped between the discharge port and circulating lifting machine of vertical mill, the material of vertical mill discharge port passes through
Deslagging belt feeder is delivered to circulating lifting machine, and material is delivered to double charging V-type static powder separating machines by circulating lifting machine.
The high-efficiency dynamic powder concentrator coarse fodder is delivered to vertical mill through No.1 air flume.
It is connected with raw material belt feeder between raw meal proportioning library and double charging V-type static powder separating machines, passes through raw material belt feeder
By raw material conveyor to double charging V-type static powder separating machines.
Metal detector is installed on raw material belt feeder, is mounted on raw material belt feeder and deslagging belt feeder except iron
Device.
It further include anti-condensation bag filter, the circulating lifting machine, vertical mill and the anti-condensation bag-type dust
The parallel connection of device constitutes dedusting and removes water-steam system, and anti-condensation bag filter is the thin material after dedusting by described two
Number air flume is transported to warehouse for finished product.
Beneficial effects of the present invention: the system is by material grinding and powder, drying to be selected to separate, and material is mechanical using elevator
Conveying, all materials by grinding machine are all made of the approach circulation of outer circulation, and the material after vertical mill grinding is all fluffy out.
V-type static powder separating machine is increased before dynamic powder concentrator and carries out primary election, while hot wind completion is passed through in V-type static powder separating machine
The drying of raw material, large granular materials directly return to Vertical Mill grinding again；Dynamic powder concentrator cone bucket and the intracorporal coarse granule of shell use
The approach of outlet returns to Vertical Mill grinding again, to improve the efficiency of dynamic powder concentrator, powder system resistance is selected in reduction.Aidr bells blast system
Resistance reduces by 30~35%, and circulating fan power can reduce by 40~45%, to reach energy-efficient purpose；Secondly, powder concentrator
It is external, special designing can be carried out according to different grinding processes, by the implementation for being conducive to efficient, energy saving selective separation process；Finally, cancelling
Mill inner ventilation, slows down abrasion of the high speed dusty gas stream to components such as grinding roller, inner walls significantly.
Detailed description of the invention
Fig. 1 is process system schematic diagram of the invention.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
As shown in Figure 1, a kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system, including belt feeder 1, metal
Survey meter 2, double charging V-type static powder separating machines 3, vertical mill 4, high-efficiency dynamic powder concentrator 5, deslagging belt feeder 6, circulating lifting machine 7,
No.1 air hopper 8, anti-condensation bag filter 9, circulating fan 10, rotoclone collector 11, No. two air hoppers 12, No.1s are removed
13, No. two iron removers 14 of ironware；Double charging V-type static powder separating machines 3 belong to level-one and select powder, and the high-efficiency dynamic selects powder
Machine 5 belongs to second level and selects powder, and double charging V-type static powder separating machines 3 and high-efficiency dynamic powder concentrator 5 have collectively constituted and powder selected to fill
It sets.
The one of double charging V-type static powder separating machines 3 enters rough material from raw meal proportioning library, through the belt
Machine 1 enter V-type powder concentrator 3 in, it is another into thin material from the vertical mill 4 mill after material, through the row
Slag belt feeder 6, circulating lifting machine 7 are transported in V-type powder concentrator 3；
The vertical mill 4, deslagging belt feeder 6, circulating lifting machine 7, double charging V-type static powder separating machines 3 are sequentially connected, group
At a circulatory system, realize the drying of raw material, break up, level-one selects powder, grinding, conveying operation；
The vertical mill 4, deslagging belt feeder 6, circulating lifting machine 7, double charging V-type static powder separating machines 3, high-efficiency dynamic choosing
Powder machine 5, No.1 air hopper 8 are sequentially connected, and constitute a circulatory system, realize the drying of raw material, break up, level-one selects powder, two
Grade selects powder, grinding, conveying operation；
The vertical mill 4, deslagging belt feeder 6, circulating lifting machine 7, double charging V-type static powder separating machines 3, high-efficiency dynamic choosing
11, No. two powder machine 5, rotoclone collector air hoppers 12 are sequentially connected, and composition prepares raw material finished product system, realizes the baking of raw material
It does, break up, level-one selects powder, second level selects powder, grinding, conveying, collects operation；
Rough material after double charging V-type static powder separating machines 3 classification and drying enters the vertical mill 4 and grinds again
Mill, fine powder enter the high-efficiency dynamic powder concentrator 5 and select powder again, the high-efficiency dynamic powder concentrator 5 be classified after finished product into
Enter to the rotoclone collector 11 and collect, coarse powder enters the vertical mill 4 through the No.1 air hopper 8 and carries out again
It is secondary to mill；
11, No. two the high-efficiency dynamic powder concentrator 5, rotoclone collector air hoppers 12 are sequentially connected, and constitute finished product
Transportation system；
Circulating lifting machine 7, vertical mill 4 and the parallel connection of anti-condensation bag filter 9, constitutes dedusting
And water-steam system is removed, the thin material after dedusting is then transported to warehouse for finished product by No. two air hoppers 12；
Double charging V-type static powder separating machines 3, high-efficiency dynamic powder concentrator 5, rotoclone collector 11, circulating fan 10 according to
Secondary connection, constitutes negative pressure system, and sucking comes from kiln tail hot wind, realize drying, break up, level-one selects powder, second level selects powder, strength
Operation is collected in conveying；The circulating fan 10 and double 3 air inlets of charging V-type static powder separating machine constitute positive pressure system
System, recycling heat energy.
13, No. two metal detector 2, No.1 iron remover iron removers 14 are arranged in the belt feeder, deslagging skin
Above band machine, iron removal system is constituted, prevention grinding machine vibration is conducive to system stable operation.
From the point of view of energy conversion, in vertical mill 4, electric energy and mechanical energy overcome material internal fracture to be able to achieve grinding
Operation；In double charging V-type static powder separating machines 3, material gravity potential energy hits deflector at kinetic energy, and realization is broken up, wind energy
Realize classification；In high-efficiency dynamic powder concentrator 5, wind energy drives fine powder to realize the classification of particle, conveying, until final gathers dust.
In production application, raw material contains moisture and accounts for 5%, grain diameter (0~40mm accounts for 90%, and maximum is no more than
70mm, the grind materials out that the raw material and circulating lifting machine 7 that ingredient library comes are brought up respectively enter double charging V-type static powder separating machines
In 3, the material in double charging V-type static powder separating machines 3 by the hot-air seasoning from kiln tail and is classified during the falling process
Processing, coarse granule falls on the mill of vertical mill 4, milled again, so by circulating lifting machine 7 be re-introduced into pair into
Expect in V-type static powder separating machine 3；Fine grained is brought into high-efficiency dynamic powder concentrator 5 by wind to carry out second level and selects powder, and underproof thick
Grain is transported in vertical mill grinding again by No.1 air hopper 8, after the fine powder selected then enters the collection of rotoclone collector 11 with the wind
As raw material finished product, life is sent to by equipment such as No. two air hoppers 12, elevators together with the finished product that kiln tail dust-precipitator is accepted
Expect storage in homogenizing storehouse, gas a part of rotoclone collector 11 enters kiln tail dust-precipitator and discharges after dedusting out, another part
Double charging V-type static powder separating machines 3 are reentered as circulated air.
Table 1 is the comparison for selecting powder raw material vertical to grind each content in the present invention and mill:
Table 2 is that the system power consumption of application case of the present invention reduces amplitude
Technical effect of the invention is shown in Table shown in 1, table 2, according to table 1 it is found that when powder concentrator external greatly reduces and is
The resistance of system reduces by 30~35% with grinding efficiency, aidr bells blast system resistance is improved, and circulating fan power can reduce by 40~45%,
As shown in Table 2, powder raw material vertical grinding system is selected in tradition mill relatively, full outer circulation raw material vertical grinding system power consumption reduces
3.8kWh/t has reached energy-efficient purpose.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, those ordinary skill in the art's simply changes
It is all within protection scope of the present invention with replacement.
Claims (6)
1. a kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system, including powder selection device, vertical mill and delivery system
System, it is characterised in that: the powder selection device includes double chargings V-type static powder separating machine (3) and high-efficiency dynamic powder concentrator (5), double
It feeds V-type static powder separating machine feed inlet and is connected to raw meal proportioning library, double charging V-type static powder separating machines (3) are selected with high-efficiency dynamic respectively
Powder machine (5) is connected with vertical mill, wherein extra quality V-type static powder separating machine fine powder enters in high-efficiency dynamic powder concentrator, coarse fodder enters vertical
Formula mill, the transportation system include rotoclone collector, No. two air flumes, and fine powder enters whirlwind receipts in high-efficiency dynamic powder concentrator
Dirt device (11), rotoclone collector are delivered to warehouse for finished product through No. two air flumes, pass through circulating lifting machine in the discharge port of vertical mill
Material is delivered to double charging V-type static powder separating machines.
2. a kind of full outer circulation raw material vertical mill mill according to claim 1 is outer to select powder grinding process system, feature exists
In: deslagging belt feeder is equipped between the discharge port and circulating lifting machine of vertical mill, the material of vertical mill discharge port passes through deslagging
Belt feeder is delivered to circulating lifting machine, and material is delivered to double charging V-type static powder separating machines by circulating lifting machine.
3. a kind of full outer circulation raw material vertical mill mill according to claim 1 is outer to select powder grinding process system, feature exists
In: the high-efficiency dynamic powder concentrator coarse fodder is delivered to vertical mill through No.1 air flume.
4. a kind of full outer circulation raw material vertical mill mill according to claim 2 is outer to select powder grinding process system, feature exists
In: between raw meal proportioning library and double charging V-type static powder separating machines it is connected with raw material belt feeder, by raw material belt feeder by raw material
It is delivered to double charging V-type static powder separating machines.
5. a kind of full outer circulation raw material vertical mill mill according to claim 4 is outer to select powder grinding process system, feature exists
In: on raw material belt feeder metal detector is installed, is mounted on iron remover on raw material belt feeder and deslagging belt feeder.
6. a kind of full outer circulation raw material vertical mill mill according to claim 3 is outer to select powder grinding process system, feature exists
In: it further include anti-condensation bag filter, the circulating lifting machine, vertical mill are in parallel with the anti-condensation bag filter
Formula connection constitutes dedusting and removes water-steam system, and anti-condensation bag filter is the thin material after dedusting by No. two air
Skewed slot is transported to warehouse for finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516032.5A CN110523501A (en) | 2018-05-25 | 2018-05-25 | A kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516032.5A CN110523501A (en) | 2018-05-25 | 2018-05-25 | A kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system |
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| CN110523501A true CN110523501A (en) | 2019-12-03 |
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| CN201810516032.5A Pending CN110523501A (en) | 2018-05-25 | 2018-05-25 | A kind of full outer circulation raw material vertical mill mill is outer to select powder grinding process system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116966991A (en) * | 2023-09-07 | 2023-10-31 | 中煤地质集团有限公司 | External circulation type gangue crushing treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10147591B4 (en) * | 2001-09-27 | 2006-11-16 | Polysius Ag | grinding plant |
| CN104211312A (en) * | 2014-09-19 | 2014-12-17 | 南京凯盛国际工程有限公司 | Cement outer-circulating semi-finish grinding system of vertical mill |
| CN204841242U (en) * | 2015-08-11 | 2015-12-09 | 无锡市西漳环保设备有限公司 | Gas source processing system of antisweat sack cleaner |
| CN204866108U (en) * | 2015-01-12 | 2015-12-16 | 张进 | Half whole grinding system of material |
| CN207102827U (en) * | 2017-07-04 | 2018-03-16 | 南京圣火环境科技有限公司 | Vertical roller grinder bypass classification drying raw material Preparation equipment |
| CN207307987U (en) * | 2017-09-25 | 2018-05-04 | 桂林鸿程矿山设备制造有限责任公司 | Raymond machine fine powder, coarse powder and sand are integrally machined system |
-
2018
- 2018-05-25 CN CN201810516032.5A patent/CN110523501A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10147591B4 (en) * | 2001-09-27 | 2006-11-16 | Polysius Ag | grinding plant |
| CN104211312A (en) * | 2014-09-19 | 2014-12-17 | 南京凯盛国际工程有限公司 | Cement outer-circulating semi-finish grinding system of vertical mill |
| CN204866108U (en) * | 2015-01-12 | 2015-12-16 | 张进 | Half whole grinding system of material |
| CN204841242U (en) * | 2015-08-11 | 2015-12-09 | 无锡市西漳环保设备有限公司 | Gas source processing system of antisweat sack cleaner |
| CN207102827U (en) * | 2017-07-04 | 2018-03-16 | 南京圣火环境科技有限公司 | Vertical roller grinder bypass classification drying raw material Preparation equipment |
| CN207307987U (en) * | 2017-09-25 | 2018-05-04 | 桂林鸿程矿山设备制造有限责任公司 | Raymond machine fine powder, coarse powder and sand are integrally machined system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116966991A (en) * | 2023-09-07 | 2023-10-31 | 中煤地质集团有限公司 | External circulation type gangue crushing treatment system |
| CN116966991B (en) * | 2023-09-07 | 2024-01-30 | 中煤地质集团有限公司 | External circulation type gangue crushing treatment system |
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Application publication date: 20191203 |