CN106694109A - Limestone dry grinding powder manufacturing process system - Google Patents
Limestone dry grinding powder manufacturing process system Download PDFInfo
- Publication number
- CN106694109A CN106694109A CN201710029564.1A CN201710029564A CN106694109A CN 106694109 A CN106694109 A CN 106694109A CN 201710029564 A CN201710029564 A CN 201710029564A CN 106694109 A CN106694109 A CN 106694109A
- Authority
- CN
- China
- Prior art keywords
- lime stone
- dry type
- type vertical
- grinding
- dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 37
- 239000006028 limestone Substances 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 title claims abstract description 25
- 238000009837 dry grinding Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 19
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims description 13
- 239000012716 precipitator Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- 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
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
- B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of 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
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/34—Passing gas through crushing or disintegrating zone gas being recirculated to crushing or disintegrating zone
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a limestone dry grinding powder manufacturing process system. The limestone dry grinding powder manufacturing process system comprises a feeding machine, a dry type vertical grinding machine, a cloth bag dust collector, a main draught fan, a pneumatic conveying device and a limestone finished product powder warehouse; the feeding machine is connected with the dry type vertical grinding machine; the dry type vertical grinding machine is connected with the cloth bag dust collector; the cloth bag dust collector is connected with the limestone finished product powder warehouse through the pneumatic conveying device; the cloth bag dust collector is connected with the main draught fan; and the main draught fan then is connected with the dry type vertical grinding machine. The vertical grinding machine is adopted as a grinding device of the limestone dry grinding powder manufacturing process system, and the grinding capacity is high; and meanwhile, the whole system is relatively closed, and the environmental pollution is small.
Description
Technical field
The present invention relates to a kind of lime stone dry grinding flouring technology system.
Background technology
The desulfurization absorbent of power plant's lime stone-gypsum wet flue gas desulfurizing system is prepared and typically uses outsourcing limestone block,
The mode of the system of grinding is set in factory, the lime stone finished product powder fineness after grinding be 325 mesh~250 mesh (0.045~0.064mm,
90% passes through).
Because traditional dry grinding system is using grinding apparatus such as rod mills, there is a problem of that dust pollution is big, and power plant is logical
Frequently with wet ball mill pulping process, but shown according to the operating experience of engineering, wet milling system there is also following defect：Lime
Stone charging Particle size requirements are tight, need to be less than 20mm；Wet ball mill need to add water, and grainding capacity is not enough.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided the stone that a kind of dust pollution is small, grainding capacity is strong
Lime stone dry grinding flouring technology system.
The purpose of the present invention is achieved through the following technical solutions：A kind of lime stone dry grinding flouring technology system, it
Including batcher, dry type vertical mill, bagroom, main air blower, Pneumatic conveyer and lime stone finished powder storehouse；Batcher with
Dry type vertical mill is connected, and dry type vertical mill connection bagroom, bagroom connects lime stone by Pneumatic conveyer
Finished powder storehouse；Bagroom connects main air blower, and main air blower is connected with dry type vertical mill again.
It is preferred that, present invention additionally comprises limestone block storehouse, limestone block storehouse is connected with batcher.
It is preferred that, batcher is belt feeder of weighing.
It is preferred that, it is provided with steam heater between main air blower and dry type column mill.
It is preferred that, blast pipe is provided between main air blower and steam heater, muffler is provided with blast pipe.
It is preferred that, blowdown pipe is provided between bagroom and main air blower, valve is provided with blowdown pipe.
It is preferred that, the dry type vertical mill is the dry type vertical mill exerted oneself up to 27t/h.
The beneficial effects of the invention are as follows：Milling apparatus of the invention use vertical grinder, and grainding capacity is strong, meanwhile, entirely
System is relatively closed, and environmental pollution is small.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
In figure：1 weighs belt feeder；2 dry type vertical mills；3 bagrooms；4 main air blowers；5 steam heaters；6 gas
Power conveying device；7 lime stone finished powder storehouses.
Specific embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
It is as described below.
As shown in figure 1, a kind of lime stone dry grinding flouring technology system, it includes that batcher, dry type vertical mill 2, cloth bag are received
Dirt device 3, main air blower 4, Pneumatic conveyer 6 and lime stone finished powder storehouse 7；Batcher is connected with dry type vertical mill 2, dry type Vertical Mill
Machine 2 connects bagroom 3, and bagroom 3 connects lime stone finished powder storehouse 7 by Pneumatic conveyer 6；Bagroom
3 connection main air blowers 4, main air blower 4 is connected with dry type vertical mill 2 again.
Preferably, present invention additionally comprises limestone block storehouse, limestone block storehouse is connected with batcher.
Preferably, batcher is belt feeder of weighing.
Preferably, steam heater 5 is provided between main air blower 4 and dry type column mill.
Preferably, blast pipe is provided between main air blower 4 and steam heater 5, muffler is provided with blast pipe, played
The effect of noise reduction.
Preferably, blowdown pipe is provided between bagroom 3 and main air blower 4, valve is provided with blowdown pipe.
The present invention by main air blower 4 from sack cleaner extracts filter only after air-flow be divided into two-way, major part is recycled back into
Grinding machine, small part drains into air through muffler.Wind circulating system is provided with blowdown pipe before main air blower 4, and fresh sky is filled into system
Gas.In order to the water content for meeting finished powder is not more than 1%, and ensure sack cleaner reliability service, set in wind circulating system
Steam heater 5 is put.
Preferably, the dry type vertical mill 2 is the dry type vertical mill 2 exerted oneself up to 27t/h.Under the grinder that the present invention is used
Portion is abrading-ball, is responsible for being ground limestone block, and abrading-ball is strong using big steel ball, grainding capacity, and mill ball and bull ring make
Reused with that can be returned after repair in shop is mended behind long lifespan (more than 5 years), and steel ball surface abrasion；Grinder top is dynamic separator,
When putting into operation, lime stone moves to grinding machine mill ball under the influence of centrifugal force from the weighed feeding of belt feeder 1 grinding machine of warehouse
Below (generally 3).Dynamic separator can will exceed the particle being sized and separate and return to abrasive areas, only reach
The finished powder of fineness requirement is discharged with air-flow from grinder, is collected in bagroom 3 (or sack cleaner), is passed through
Packing auger is delivered to finished powder storehouse after concentrating by Pneumatic conveyer 6.
After lime stone slurry after traditional grinding system grinding need to be pumped to centrifugal separating device (swirler) treatment, no
Right rail is returned and re-grind；But the finished product powder fineness after circular grinding does not often reach design requirement yet.Simultaneously in grinding machine
Wall needs that line with rubber anti-corrosion, line with rubber etc. are easy to fall off to cause Maintenance and Repair workload larger；Steel ball number is more, quick abrasion, need to frequently add,
Cause operating cost higher；The noise of grinding machine operation is big.It is single and its abrasive article of the invention is strong using big steel ball, grainding capacity
Platform pulverizer adequacy is up to more than 27t/h；Can after the long service life (more than 5 years) of mill ball and bull ring, and steel ball surface abrasion
Return after repair in shop is mended and reuse；Mill speed is low, operate steadily, noise it is low；Raw limestone particle diameter is 30mm and following, finished powder
Stabilization, the fineness of exerting oneself are uniform；Powder feeding pipe is in tiny structure running status when system puts into operation, and will not occur to leak powder phenomenon, and environment is clear
It is clean；System uses pulverized coal carried by hot air, it is ensured that can obtain high-quality, dry agstone；The approach that finished powder is outwards conveyed is more,
In addition to it can meet this power plant desulfurization, additional economic benefit can be created with for sale.
The present embodiment has the advantages that：
(1), scratch system is reliable, exerts oneself big, and finished product powder fineness is uniform, can guarantee that the requirement for meeting downstream process.
(2), the operation power consumption of system is suitable with other conventional mill systems, but main consumable accessory long lifespan, and mill ball can
To recycle, repair and maintenance expense is low.
(3) noise that, system operation is produced is low, clean environment.
(4), the finished powder quality of system production is high, can be with for sale.By the purchasing price of current raw limestone per ton
About 30 yuan, about 200 yuan of the market price meter of finished powder, can bring good economic benefit.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is noted that be all
Any modification, equivalent and improvement for being made within the spirit and principles in the present invention etc., should be included in guarantor of the invention
Within the scope of shield.
Claims (7)
1. a kind of lime stone dry grinding flouring technology system, it is characterised in that：It includes batcher, dry type vertical mill, bag collection
Device, main air blower, Pneumatic conveyer and lime stone finished powder storehouse；Batcher is connected with dry type vertical mill, the connection of dry type vertical mill
Bagroom, bagroom connects lime stone finished powder storehouse by Pneumatic conveyer；Bagroom connects main air blower,
Main air blower is connected with dry type vertical mill again.
2. a kind of lime stone dry grinding flouring technology system according to claim 1, it is characterised in that：It also includes lime stone
Block storehouse, limestone block storehouse is connected with batcher.
3. a kind of lime stone dry grinding flouring technology system according to claim 1 and 2, it is characterised in that：Batcher is title
Weight belt feeder.
4. a kind of lime stone dry grinding flouring technology system according to claim 1, it is characterised in that：Main air blower and dry type post
Steam heater is provided between grinding machine.
5. a kind of lime stone dry grinding flouring technology system according to claim 4, it is characterised in that：Main air blower adds with steam
Blast pipe is provided between hot device, muffler is provided with blast pipe.
6. according to claim 1 or 2 or 4 or 5 a kind of lime stone dry grinding flouring technology system, it is characterised in that：Cloth bag
Blowdown pipe is provided between dust-precipitator and main air blower, valve is provided with blowdown pipe.
7. according to claim 1 or 2 or 4 or 5 a kind of lime stone dry grinding flouring technology system, it is characterised in that：It is described
Dry type vertical mill is the dry type vertical mill exerted oneself up to 27t/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029564.1A CN106694109B (en) | 2017-01-16 | 2017-01-16 | A kind of lime stone dry grinding flouring technology system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029564.1A CN106694109B (en) | 2017-01-16 | 2017-01-16 | A kind of lime stone dry grinding flouring technology system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106694109A true CN106694109A (en) | 2017-05-24 |
| CN106694109B CN106694109B (en) | 2019-09-06 |
Family
ID=58908637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710029564.1A Active CN106694109B (en) | 2017-01-16 | 2017-01-16 | A kind of lime stone dry grinding flouring technology system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106694109B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321485A (en) * | 2017-08-10 | 2017-11-07 | 青阳县永诚钙业有限责任公司 | A kind of method for separating of agstone |
| CN110404651A (en) * | 2019-07-04 | 2019-11-05 | 国能绿色能源股份有限公司 | A kind of security system and its method ensureing pulverized coal preparation process |
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| CN106000550A (en) * | 2016-07-29 | 2016-10-12 | 南通利元亨机械有限公司 | Grinding system for producing ground calcium carbonate |
| CN106179689A (en) * | 2016-09-09 | 2016-12-07 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of agstone preparation system |
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| CN206474231U (en) * | 2017-01-16 | 2017-09-08 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of lime stone dry grinding flouring technology system |
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2017
- 2017-01-16 CN CN201710029564.1A patent/CN106694109B/en active Active
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| US5850977A (en) * | 1995-04-17 | 1998-12-22 | Csendes; Ernest | Method and apparatus for comminuting solid particles |
| JP2000237614A (en) * | 1998-12-24 | 2000-09-05 | Onoda Eng Kk | Crushing/classification method and device therefor |
| CN2801282Y (en) * | 2005-06-16 | 2006-08-02 | 王东民 | Production system of coarse whiting ultrafine powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110404651A (en) * | 2019-07-04 | 2019-11-05 | 国能绿色能源股份有限公司 | A kind of security system and its method ensureing pulverized coal preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106694109B (en) | 2019-09-06 |
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