CN107051689A - A kind of lime stone dry grinding prepares arrangement - Google Patents
A kind of lime stone dry grinding prepares arrangement Download PDFInfo
- Publication number
- CN107051689A CN107051689A CN201710029576.4A CN201710029576A CN107051689A CN 107051689 A CN107051689 A CN 107051689A CN 201710029576 A CN201710029576 A CN 201710029576A CN 107051689 A CN107051689 A CN 107051689A
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- Prior art keywords
- lime stone
- dry grinding
- prepares
- stone dry
- building
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- 235000019738 Limestone Nutrition 0.000 title claims abstract description 99
- 239000006028 limestone Substances 0.000 title claims abstract description 99
- 238000009837 dry grinding Methods 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- 238000005303 weighing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 description 22
- 239000000843 powder Substances 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 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
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction 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
- 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
- B02C23/02—Feeding devices
-
- 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
Abstract
Arrangement is prepared the invention discloses a kind of lime stone dry grinding, including lime stone dry grinding Preparation equipment and lime stone dry grinding prepare building, lime stone dry grinding prepares building and is set to three floor；Lime stone dry grinding Preparation equipment includes lime stone conveying device, the preceding storehouse of lime stone mill, batcher, vertical grinder, deduster, main air blower, steam heater, Pneumatic conveying pump and the roots blower that source of the gas is conveyed to Pneumatic conveying pump；Vertical grinder, main air blower, steam heater and roots blower are arranged on the first layer that lime stone dry grinding prepares building, the preceding storehouse of lime stone mill, batcher, deduster and Pneumatic conveying pump are arranged on the second layer that lime stone dry grinding prepares building, lime stone conveying device is used to give lime stone mill preceding storehouse conveying lime stone, and lime stone conveying device is arranged on the third layer that lime stone dry grinding prepares building；The preceding storehouse of lime stone mill connects vertical grinder by batcher, etc..The present invention is rational in infrastructure, and characteristics of compact layout, floor space are small, can bring good economic benefit.
Description
Technical field
Arrangement is prepared the present invention relates to a kind of lime stone dry grinding.
Background technology
Prepared by the desulfurization absorbent of power plant's lime stone-gypsum wet flue gas desulfurizing system typically uses outsourcing limestone block,
The mode for the system of grinding is set in factory, the lime stone finished product powder fineness after grinding be the mesh of 325 mesh~250 (0.045~0.064mm,
90% passes through).But existing lime stone is dry grinded, preparation structure is unreasonable, and floor space is wide.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of rational in infrastructure, small lime of floor space
Stone dry grinding prepares arrangement.
The purpose of the present invention is achieved through the following technical solutions：A kind of lime stone dry grinding prepares arrangement, it
Building is prepared including lime stone dry grinding Preparation equipment and lime stone dry grinding, described lime stone dry grinding prepares building and is set to three floor；
Described lime stone dry grinding Preparation equipment includes lime stone conveying device, the preceding storehouse of lime stone mill, batcher, vertical mill
Machine, deduster, main air blower, steam heater, Pneumatic conveying pump and the roots blower that source of the gas is conveyed to Pneumatic conveying pump；
Described vertical grinder, main air blower, steam heater and roots blower is arranged on that lime stone dry grinding prepares building
One layer, the described preceding storehouse of lime stone mill, batcher, deduster and Pneumatic conveying pump is arranged on lime stone dry grinding prepares building second
Layer, described lime stone conveying device is used to give lime stone mill preceding storehouse conveying lime stone, and lime stone conveying device is arranged on lime
Stone dry grinding prepares the third layer in building；
The described preceding storehouse of lime stone mill connects vertical grinder by batcher, and vertical grinder top connects sack cleaner,
Sack cleaner connects Pneumatic conveying pump；Vertical grinder bottom connects steam heater, and steam heater is also connected with main air blower.
It is preferred that, described Pneumatic conveying pump is spiral Pneumatic conveying pump.
It is preferred that, described batcher is Weighing type belt feeder.
It is preferred that, present invention additionally comprises blowdown pipe and damper, damper is arranged on blowdown pipe, tonifying Qi
Pipe is connected with main air blower.
It is preferred that, orlop portion is provided with eccentric reducer material blanking tube before lime stone mill.
It is preferred that, described deduster is sack cleaner.
It is preferred that, deduster is connected by airduct vertically downward with main air blower.
It is preferred that, main air blower is connected by airduct with steam heater, and discharge duct is provided with the airduct, row
Muffler is arranged in feed channel.
It is preferred that, described muffler is arranged on the second layer that lime stone dry grinding prepares building.
The beneficial effects of the invention are as follows：The present invention is rational in infrastructure, and characteristics of compact layout, floor space are small, can bring good warp
Ji benefit.
Brief description of the drawings
Fig. 1 is first layer layout drawing of the present invention；
Fig. 2 is second layer layout drawing of the present invention；
Fig. 3 is third layer layout drawing of the present invention；
Fig. 4 is section layout drawing of the present invention；
Fig. 5 is that lime stone dry grinding prepares building section layout drawing；
In figure, the preceding storehouse of 1- lime stone mills；2- Weighing type belt feeders；3- vertical grinders；4- sack cleaners；The main wind of 5-
Machine；6- steam heaters；7- mufflers；8- spiral Pneumatic conveying pumps；9- roots blowers.
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.
Heat-engine plant wet flue gas desulphurization system need to set lime stone preparation system, and system is typically independently arranged in and prepares car
Between, and as shown in Fig. 1~Fig. 5, a kind of lime stone dry grinding prepares arrangement, it includes lime stone dry grinding Preparation equipment and lime
Stone dry grinding prepares building, and described lime stone dry grinding prepares building and is set to three floor；
Described lime stone dry grinding Preparation equipment includes lime stone conveying device, the preceding storehouse 1 of lime stone mill, batcher, vertical
Grinding machine 3, deduster, main air blower 5, steam heater 6, Pneumatic conveying pump and the roots blower 9 that source of the gas is conveyed to Pneumatic conveying pump；
Described vertical grinder 3, main air blower 5, steam heater 6 and roots blower 9 is arranged on lime stone dry grinding and prepares building
First layer, the preceding storehouse 1 of described lime stone mill, batcher, deduster and Pneumatic conveying pump are arranged on lime stone dry grinding and prepare building
The second layer, described lime stone conveying device is used to give lime stone mill the preceding conveying of storehouse 1 lime stone, and lime stone conveying device is set
The third layer in building is prepared in lime stone dry grinding；
The preceding storehouse 1 of described lime stone mill connects vertical grinder 3, the top of vertical grinder 3 connection bag-type dust by batcher
Device 4, the connection Pneumatic conveying pump of sack cleaner 4；The bottom of vertical grinder 3 connect steam heater 6, steam heater 6 also with master
Blower fan 5 is connected.
Preferably, described Pneumatic conveying pump is spiral Pneumatic conveying pump 8.
Preferably, described batcher is Weighing type belt feeder 2.
Preferably, present invention additionally comprises blowdown pipe and damper, damper is arranged on blowdown pipe, blowdown pipe and master
Blower fan 5 is connected.
Preferably, the preceding bottom of storehouse 1 of lime stone mill is provided with eccentric reducer material blanking tube.
Preferably, described deduster is sack cleaner 4.
Preferably, deduster is connected by airduct vertically downward with main air blower 5.
Preferably, main air blower 5 is connected by airduct with steam heater 6, and discharge duct, blast pipe are provided with the airduct
Muffler 7 is arranged on road.
Preferably, described muffler 7 is arranged on the second layer that lime stone dry grinding prepares building.
Three floor that lime stone dry grinding of the present invention prepares building are respectively 0m floor, 11.0m floor and 28.0m floor.
Preferably, as shown in Fig. 1~Fig. 5, the grinder system that 3 sets of 27t/h are arranged in building altogether is prepared, the single-row cloth of system is often covered
Put, wherein #1 grinder systems are arranged between No. 1 post and No. 2 posts, #2 grinder systems are arranged between No. 2 posts and No. 3 posts, #3 mills
Machine system is arranged between No. 3 posts and No. 4 posts.Often set system includes grinding preceding storehouse, grinding machine, main air blower 5, steam heater 6, cloth
Bag dust collector 4, agstone induction system etc..
For every set grinder system, position in storehouse is between the B colonnades of powder factory and C colonnades before grinding machine and mill, and wherein grinding machine is arranged in
0m layers, Mo Qiancang is arranged between 11m to 28m layers；Main air blower 5 is arranged in the 0m layers between D colonnades and E colonnades；Steam is heated
Device 6 is arranged between the C colonnades of powder factory and D colonnades, and hydrophobic for convenience, the high position of steam heater 6 is arranged in the steel platform of 4m absolute altitudes
On；Sack cleaner 4 is arranged in the 11m layers between the C colonnades of powder factory and E colonnades；Sack cleaner 4 times be spiral powder conveying machine and
Thus Pneumatic conveyer, finished powder is outwards delivered to powder storehouse, and powder warehouse compartment is determined the need for putting according to downstream process：Can be close to system
Standby building arrangement, can also be remotely locatable, distance is no more than 1km.
28m layers between B colonnades and C colonnades are disposed with belt conveyor and belt plow, and limestone block raw material is by skin
Band machine delivers to 28m layers, is discharged into Mo Qiancang.
Electrical power distribution room, control night shift room and toilet etc. are arranged between No. 4 posts and No. 5 posts；Staircase is arranged in building
Between outer A colonnades and B colonnades, fire prevention regulations for fire fighting are met.
The operation principle of a whole set of lime stone dry grinding powder manufacturing apparatus is as follows：
External limestone block is delivered to silo roof portion feeding mouth before mill by belt conveyor (or other machinery conveying equipment),
Lime stone in storehouse quantitatively feeds the top of vertical grinder 3 through bottom discharge openings and Weighing type belt feeder 2, in the work of centrifugal force
Fallen under below mill ball.Lime stone is carried to the separator on grinding machine top, separator after grinding by circulation conveying wind
The feed separation of overgage and abrasive areas is returned to, reach the finished powder of fineness requirement with conveying wind from grinding machine top
Sack cleaner 4 is discharged into, finished powder is collected into the powder hopper of bottom by sack cleaner 4, after the packing auger through bottom is concentrated
Finished powder storehouse is outwards delivered to by spiral Pneumatic conveying pump 8.The conveying source of the gas of Pneumatic conveying pump is provided by roots blower 9.
Conveying wind into grinding machine is provided by main air blower 5, and main air blower 5 extracts the air-flow after filter only out from sack cleaner 4, greatly
Grinding machine is partially recycled back to, small part drains into air through being vented airduct.Capacity can be adjusted by the damper on airduct,
Ensure that grinding machine is run under smooth pressure；Appropriate exhaust can also reduce the humidity of circulated air.It is vented airduct and is provided with muffler 7,
Reduce noise during exhaust.Blast pipe before main air blower 5 is provided with blowdown pipe and damper, fills into as needed fresh outside building
Air, it is ensured that wind circulating system even running.Circulation airduct after main air blower 5, before grinding machine is provided with steam heater 6, heating
Circulation air, supplies regulating valve and the entrance fender plate door regulation grinding machine outlet mass temperatures of main air blower 5, and ensure by steam
The surface moisture content of finished powder is not more than 1%.
Main pipeline connection and feature are as follows between the whole series dry grinding powder manufacturing apparatus：
(1), grind preceding storehouse outlet at bottom and use eccentric reducer material blanking tube, with the rectangle charging aperture of Weighing type belt feeder 2
Connection, can reduce the arrangement size ground between preceding storehouse and grinding machine, be blocked prevented also from warehouse discharging before mill.Weighing type belt feeder
2 outlets are directly connected by vertical circular material blanking tube with grinding machine bottom feed mouthful.
(2), the powder feeding pipes between grinding machine outlet and the import of sack cleaner 4 upwards and are arranged vertically using high inclination-angle, can
Reduce the arrangement size of equipment room；Grinding machine outlet circular duct is connected with grinding machine circle interface, is set in the interface of sack cleaner 4
Circumference section is put, is connected with deduster rectangular duct interface.
(3), the outlet of sack cleaner 4 sets circumference section, is connected by circular duct vertically downward and the circular import of main air blower 5
Connect, tonifying Qi pipeline is connected with vertical airduct, from outdoor suction.
(4), the outlet of main air blower 5 is rectangle, is entered by having an area of section, circular duct and circumference section with the rectangle of steam heater 6
Mouth connection.Discharge duct is connected with airduct, to outdoor discharge, muffler 7 is disposed with blast pipe.
(5), the outlet of steam heater 6 is rectangle, is saved by rectangular elbow, circumference and circular duct and mill diagonally downward
The circular air inlet connection of motor spindle.
The present invention is applied to each grade set thermal power plant power wet desulfurization of flue gas by limestone-gypsum method device and uses outsourcing stone
The system that agstone is prepared in limestone block, factory；And the scratch system of the industry such as cement building material.This lime stone is prepared using vertical
Formula dry grinding machine negative pressure pulverized coal preparation system is a kind of new technology, is arranged in dry grinding mill house.This powder factory layout design theory is advanced, often covers
The single-row arrangement of system, grinding machine is arranged in zero meter of layer, and Limestone silo is arranged in the surface of same framework, bagroom and blower fan
It is arranged in another framework, characteristics of compact layout, meets technological process, rotating machinery is arranged in zero meter, and repair and maintenance is convenient.
The present embodiment has the following advantages that：
1st, dry grinding prepares building capital equipment solid arrangement, and floor space is small, only 40m × 28m.
2nd, building equipment connection and reasonable arrangement is prepared, primary pivot equipment is arranged in zero meter face, saves civil engineering structure expense.
3rd, building is prepared multiple functional, production run safety, repair and maintenance is convenient.
4th, building exterior wall is prepared using light-duty closing, and building external noise is low, and no dust pollution.
5th, the finished product powder yield for preparing building Workshop Production is big, and (annual utilization hours are pressed up to more than 400,000 tons for annual production
5000h is counted), based on current about 30 yuan of the purchasing price of raw limestone per ton, about 200 yuan of the market price of finished powder, it can bring
Good economic benefit.
In summary, the dry grinding of this lime stone prepare building design concept it is advanced, its major advantage has：Prepare building floor space
It is small, it is multiple functional；The single-row arrangement of system is often covered, grinding machine is arranged in zero meter of layer, and Limestone silo is arranged in the surface of same framework,
And use eccentric discharging, avoid blocking；Bagroom and wind turbine layout characteristics of compact layout, meet technological process in another framework,
Save pipeline material；Large-scale rotating machinery is arranged in zero meter, saves civil engineering costs, and repair and maintenance is convenient.Building exterior wall is prepared to adopt
Light-duty closing is used, it is small to surrounding environment influence.Approach that finished powder is outwards conveyed is more, it is distant to send, except that can meet
Beyond the techniques such as downstream desulfurization, additional economic benefit can be created with for sale.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all
Any modifications, equivalent substitutions and improvements made within the spirit and principles in the present invention etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (9)
1. a kind of lime stone dry grinding prepares arrangement, it is characterised in that：It includes lime stone dry grinding Preparation equipment and lime stone
Dry grinding prepares building, and described lime stone dry grinding prepares building and is set to three floor；
Described lime stone dry grinding Preparation equipment include lime stone conveying device, the preceding storehouse of lime stone mill, batcher, vertical grinder,
Deduster, main air blower, steam heater, Pneumatic conveying pump and the roots blower that source of the gas is conveyed to Pneumatic conveying pump；
Described vertical grinder, main air blower, steam heater and roots blower is arranged on lime stone dry grinding prepares building first
Layer, the described preceding storehouse of lime stone mill, batcher, deduster and Pneumatic conveying pump is arranged on lime stone dry grinding prepares building second
Layer, described lime stone conveying device is used to give lime stone mill preceding storehouse conveying lime stone, and lime stone conveying device is arranged on lime
Stone dry grinding prepares the third layer in building；
The described preceding storehouse of lime stone mill connects vertical grinder, vertical grinder top connection sack cleaner, cloth bag by batcher
Deduster connects Pneumatic conveying pump；Vertical grinder bottom connects steam heater, and steam heater is also connected with main air blower.
2. a kind of lime stone dry grinding according to claim 1 prepares arrangement, it is characterised in that：Described Geldart-D particle
Pump is spiral Pneumatic conveying pump.
3. a kind of lime stone dry grinding according to claim 1 prepares arrangement, it is characterised in that：Described batcher is
Weighing type belt feeder.
4. a kind of lime stone dry grinding according to claim 1 or 2 or 3 prepares arrangement, it is characterised in that：It also includes
Blowdown pipe and damper, damper are arranged on blowdown pipe, and blowdown pipe is connected with main air blower.
5. a kind of lime stone dry grinding according to claim 1 prepares arrangement, it is characterised in that：Orlop before lime stone mill
Portion is provided with eccentric reducer material blanking tube.
6. a kind of lime stone dry grinding according to claim 1 prepares arrangement, it is characterised in that：Described deduster is
Sack cleaner.
7. a kind of lime stone dry grinding according to claim 1 or 6 prepares arrangement, it is characterised in that：Deduster passes through
Airduct vertically downward is connected with main air blower.
8. a kind of lime stone dry grinding according to claim 1 prepares arrangement, it is characterised in that：Main air blower passes through airduct
It is connected with steam heater, is provided with the airduct on discharge duct, discharge duct and arranges muffler.
9. a kind of lime stone dry grinding according to claim 8 prepares arrangement, it is characterised in that：Described muffler is set
Put the second layer that building is prepared in lime stone dry grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029576.4A CN107051689A (en) | 2017-01-16 | 2017-01-16 | A kind of lime stone dry grinding prepares arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029576.4A CN107051689A (en) | 2017-01-16 | 2017-01-16 | A kind of lime stone dry grinding prepares arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107051689A true CN107051689A (en) | 2017-08-18 |
Family
ID=59599035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710029576.4A Pending CN107051689A (en) | 2017-01-16 | 2017-01-16 | A kind of lime stone dry grinding prepares arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN107051689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020038305A1 (en) * | 2018-08-19 | 2020-02-27 | 浙江晟达机械有限公司 | Multi-tower integrated crushing system which is vertically arranged and environmentally friendly, and crushing process thereof |
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Application publication date: 20170818 |