CN106269178B - A kind of raw material vertical-grinding system - Google Patents
A kind of raw material vertical-grinding system Download PDFInfo
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- CN106269178B CN106269178B CN201610896217.4A CN201610896217A CN106269178B CN 106269178 B CN106269178 B CN 106269178B CN 201610896217 A CN201610896217 A CN 201610896217A CN 106269178 B CN106269178 B CN 106269178B
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- carbide slag
- raw material
- grinding system
- drying
- grinding
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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
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- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The present invention relates to field of cement production more particularly to a kind of raw material vertical-grinding systems, including drying grinding system, raw meal proportioning transport system and the raw material batching system for including dispensing library；The drying grinding system includes milling equipment, warm-air supply system and material collection equipment, it is characterized in that, the dispensing library includes wet carbide slag storage cavern and dry carbide slag library storage cavern, and wet carbide slag is delivered to the drying grinding system by the wet carbide slag storage cavern by the raw meal proportioning transport system；The system of the carbide slag drying further includes air-transport system, and the dry carbide slag for collecting the material collection equipment is delivered to the dry carbide slag storage cavern.The present invention increases air-transport system in original raw material vertical-grinding system, can realize the process of independent carbide slag drying, need not establish independent drying equipment, can reduce investment, reduces operating cost.
Description
Technical field
The present invention relates to Cement production technology field more particularly to a kind of raw material vertical-grinding systems.
Background technology
Carbide slag is coal chemical industry acetylene method production Corvic or the industrial residue that acetylene gas factory generates.By
It not only results in waste of resources in outer discharging carbide slag slag, environmental pollution, but also increases business economic burden, often use it for giving birth at present
Produce cement and for power plant as fume desulfurizing agent.It is comprehensive in resource since the carbide slag produced is still containing 4~10% moisture
There are the following problems during conjunction utilizes：
When for manufacture of cement, first, the carbide slag blanking be easy to causeing in dispensing library is unsmooth, plugging phenomenon frequent occurrence,
Cause production can not continuous operation；Second is that since the amplitude of variation of water content in carbide slag is larger, cause raw meal proportioning inaccurate,
It causes cement clinker quality unstable, and then affects the product quality of finished cement, caused in market competition to enterprise
Greatly negative effect；Third, the ferrosilicon in carbide slag cannot be removed due to existing production line, lead to raw mill serious wear, greatly
Cycle time is repaiied, cement producing line operating rate is seriously affected.When for means of flue gas desulfurization of power plant agent, first, being blocked in transportational process
The discharge port of transportation tank car；Second is that blocking the carbide slag storage tank of power plant, difficulty is increased to the carbide slag use of power plant, reduction
Usage amount of the power plant to carbide slag.
In view of above various problems, it is necessary to dry to carbide slag, be comprehensively utilized after carbide slag drying
Task is extremely urgent.
There are two ways to the drying of new type nonaqueous cement production line carbide slag uses：One is during raw grinding with
Raw material is carried out at the same time drying, that is, dries simultaneous grinding system；Another kind be use individual drying equipment, material after drying again
Enter Vertical Mill.
Use drying and grinding system that can save equipment and investment with simplification of flowsheet, have become new dry process water
Bricklayer's's skill first choice flow；Vertical mill is the simultaneous milling equipment of the strongest drying of current drying capacity, can be to mill feed material integrated water
The material that can reach 15% is divided to carry out drying and grinding.The wet carbide slag of the technological process and cement slurry enter together Vertical Mill into
Row drying to realize the production of cement, but cannot provide dry carbide slag, currently, the electricity provided to power plant to power plant
Rock ballast, frequently with individual drying equipment, currently used drying equipment has following two kinds of patterns：Drying hammer mill, two
It is rotary dryer.It is that material enters drying hammer mill with heat smoke to dry hammer mill, passes through crusher high speed
The tup of rotation raises material, is allowed to come into full contact with heat smoke, carries out heat exchange.It is below in life to dry aqueous l%
Feed powder is brought deduster by flue gas and is collected, and calcining in kiln is finally entered.Rotary dryer is will to dry the calcium carbide after press filtration
Slag enters rotary dryer drying to aqueous about 20% half siccative, and Vertical Mill ovendry power again is then entered with other feed proportionings
Mill.Dryer heat smoke is provided by the hot-blast stove set up.But the implementation of the technological process is complete outside Grinding Process in Cement Plants system
Completely newly build independent drying system, using the independent carbide slag drying of this drying system not only invest larger, operating cost also compared with
It is high.
Invention content
(1) technical problems to be solved
The present invention provides a kind of raw material vertical-grinding system, is simply transformed on the basis of original raw material vertical-grinding system, energy
The drying of carbide slag being enough implemented separately, when for solving traditional independent carbide slag drying, needing to build independent drying system, no
The problem of only investing big, operating cost height, and also needing to occupy large area place.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of raw material vertical-grinding systems, including drying grinding system, raw material
Dispensing transport system and the raw material batching system for including dispensing library；The drying grinding system includes milling equipment, hot wind confession
To system and material collection equipment, which is characterized in that the dispensing library includes wet carbide slag storage cavern and dry carbide slag library storage cavern, institute
It states wet carbide slag storage cavern and wet carbide slag is delivered to by the drying grinding system by the raw meal proportioning transport system；The life
Expect that vertical mill system further includes air-transport system, the dry carbide slag for collecting the material collection equipment is delivered to described dry
Carbide slag storage cavern.
Wherein, the air-transport system includes Pneumatic conveying pump and the pneumatic carrier that is connect with the Pneumatic conveying pump
Road, the Pneumatic conveying pump connect the material collection equipment, and the Pneumatic conveying pump connects the dry carbide slag storage cavern.
Wherein, the drying grinding system includes conveyer, and the material that the conveyer collects material collection equipment is defeated
It send to raw material homogenizing silo.
Wherein, the conveyer includes chain-linked conveyer and screw conveyor.
Wherein, the material collection equipment includes rotoclone collector and bagroom, and the bagroom connects institute
Chain-linked conveyer is stated, the rotoclone collector connects the screw conveyor.
Wherein, the chain-linked conveyer and the screw conveyor are respectively connected with the Pneumatic conveying pump.
Wherein, the Pneumatic conveying pump is envelope material pump.
Wherein, the dry carbide slag storage cavern connects deduster, and the gas for that will convey dry carbide slag is discharged.
Wherein, the raw meal proportioning transport system includes belt feeder, and wet carbide slag is delivered to the baking by the belt feeder
Dry powder grinding system.
(3) advantageous effect
1, raw material vertical-grinding system provided by the invention is transformed accordingly on the basis of original raw material vertical-grinding system,
A storage cavern in former raw meal proportioning is changed to dry carbide slag storage cavern, and adds air-transport system, you can is realized vertical in raw material
When drying grinding of the grinding system without raw material, the independent drying of carbide slag is carried out, the program is not only simple to operation, Er Qieneng
Enough reduce the cost of independent carbide slag drying.In addition, dry carbide slag, which may be used, by the improvement carries out raw meal proportioning, solve
A series of problems that wet carbide mud residue ingredient is brought, while dry carbide slag can also be individually sold to power plant for power plant desulfurization, increase
Add the economic benefit of enterprise.
2, raw material vertical-grinding system provided by the invention, using by Pneumatic conveying pump and Pneumatic conveying pipeline after carbide slag drying
Dry carbide slag is recycled to dry carbide slag library, conveyance conduit configuration is flexible, keeps plant production processes flow more reasonable, transport system
Completely enclosed, dust from flying is few, it can be achieved that environmental requirement, movement parts are few, and maintenance is convenient, it is easy to accomplish automation,
The several points that can also the material that concentrated by several points is sent to one or be sent to dispersion by one, and realize remote-controlled operation.
Description of the drawings
Fig. 1 is the structural schematic diagram of raw material vertical-grinding system provided by the invention；
In figure, 1：Dry grinding system；2：Raw material batching system；3：Belt feeder；12：Rotoclone collector；13：Bag collection
Device；14：Screw conveyor；15：Chain-linked conveyer；20：Dispensing library；21：Dry carbide slag storage cavern；22：Wet carbide slag storage cavern；23：
Deduster；41：Pneumatic conveying pump；42：Pneumatic conveying pipeline.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give the better embodiment of the present invention.It these are only the preferred embodiment of the present invention, be not intended to limit the special of the present invention
Sharp range, it is every using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, directly or
It connects and is used in other related technical areas, be included within the scope of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant Listed Items.
The present invention provides a kind of raw material vertical-grinding system, is simply transformed on the basis of original raw material vertical-grinding system, energy
The drying of carbide slag being enough implemented separately, when for solving traditional independent carbide slag drying, needing to build independent drying system, no
The problem of only investing big, operating cost height, and also needing to occupy large area place.
As shown in Figure 1, a kind of raw material vertical-grinding system is provided in the embodiment of the present invention, including drying grinding system 1, raw material are matched
Expect transport system and the raw material batching system 2 including dispensing library 20；It includes milling equipment 11, hot wind confession to dry grinding system 1
To system and material collection equipment, wherein dispensing library 20 includes dry carbide slag storage cavern 21 and wet carbide slag library storage cavern 22, wet calcium carbide
Wet carbide slag is delivered to drying grinding system 1 by slag storage cavern 22 by raw meal proportioning transport system；Raw material vertical-grinding system further includes
Air-transport system, the dry carbide slag for collecting material collection equipment are delivered to dry carbide slag storage cavern.It is provided by the invention
On the basis of original raw material vertical-grinding system dry carbide slag storage cavern 21 will be arranged in raw material vertical-grinding system in former raw meal proportioning library 20,
Wet carbide slag is delivered to drying grinding system 1 using former raw meal proportioning transport system, drying grinding is carried out, by material collection
Equipment is collected, and the dry carbide slag after collection is delivered to by air-transport system in the dry carbide slag storage cavern 21 in dispensing library 20.
I.e. the present invention on the basis of original raw material vertical-grinding system it is slightly modified can be realized without cement drying raw meal and
When grinding, the independent drying of carbide slag can be completed, the improvement project is not only simple to operation, but also greatly reduces independent baking
The cost of dry carbide slag.
In the present embodiment, air-transport system includes Pneumatic conveying pump 41 and the pneumatic carrier that is connect with Pneumatic conveying pump
Road 42, Pneumatic conveying pump 41 connect material collecting device, and Pneumatic conveying pump 41 connects dry carbide slag storage cavern 21.The pneumatic carrier
Road 42 configures flexibly, keeps plant production processes flow more reasonable, and air-transport system is completely enclosed, dust from flying it is few, it can be achieved that
Environmental requirement, movement parts are few, and maintenance is convenient, it is easy to accomplish the material concentrated by several points can be also sent to by automation
Several points of dispersion are sent at one or by one, and realize remote-controlled operation.
In the present embodiment, material collection equipment includes rotoclone collector 12 and bagroom 13, and drying grinding system 1 wraps
Conveyer is included, conveyer is respectively provided in the lower end of rotoclone collector 12 and bagroom 13, by conveyer by cyclone dust collection
The material that device 12 and bagroom 13 are collected is delivered to raw material homogenizing silo respectively.Specifically, conveyer includes chain-linked conveyer
14 and screw conveyor 15, chain-linked conveyer 14 connects bagroom 13, and screw conveyor 15 connects rotoclone collector 12.Through
Cross the material for meeting fineness requirement after milling equipment 11 after rotoclone collector 12 collects by screw conveyor 15 be transported into
Skewed slot is pushed up hence into raw material homogenizing silo in library bucket elevator and library；The exhaust gas for going out mill enters bagroom 13 through circulating fan, warp
Treated the gas of cloth bag dust-precipitator 13 is discharged into air by cellar for storing things last row wind turbine and smokestack, and is collected by bagroom 13
Powder by chain-linked conveyer 14 enter raw material homogenizing silo.
In the present embodiment, when independent carbide slag drying, for the object for collecting bagroom 12 and cyclone dust collectors 13
Material is delivered in the dispensing library 20 in raw material batching system, and gas is all connected in the lower end of chain-linked conveyer 14 and screw conveyor 15
The dry carbide slag conveyed on power delivery pump 41, chain-linked conveyer 14 and screw conveyor 15 under the action of Pneumatic conveying pump 41,
Be delivered in the dry carbide slag storage cavern 21 in dispensing library 20 by Pneumatic conveying pipeline 42, in case manufacture of cement raw material use or
Power plant desulfurization agent is used.
In the present embodiment, which is envelope material pump, and material envelope pump is a kind of novel powder pneumatic conveying equipment,
Belong to low pressure diluted phase transport classification, using the ejector action of high-speed flow come conveying powder material.Envelope material pump has equipment investment
Advantage small, supply gas pressure is low, so as to reduce cost, save air consumption.In addition, also having low-pressure conveying, equipment is close
Preferable, the reliable for operation feature of envelope property.
In the present embodiment, during dry carbide slag is delivered to dry carbide slag storage cavern 21 by air-transport system,
The also corresponding gas for entering dry carbide slag storage cavern 21 with dry carbide slag, for ease of arranging the gas of the conveying dry carbide slag
Go out, connects deduster 23 in the outer end of dry carbide slag storage cavern, gas is discharged by deduster 23, to only store up dry carbide slag
There are in dry carbide slag storage cavern 21.
In the present embodiment, in order to which the wet carbide slag in dispensing library is delivered in drying grinding system 1, raw meal proportioning conveying
Belt feeder 3 is provided in system, by the effect of the belt feeder 3 by wet carbide slag be transported in drying grinding system 1 so as into
Row drying.
The technological process of raw material vertical-grinding system of the present invention is as described below when cement plant manufactures cement：From raw material batching system
The raw material drying grinding system of supply carries out drying grinding, and specific embodiment is：Raw material enter the mill of milling equipment 11
Track on, mill rotate when, raw material are rolled crushing, the material of pulverized certain fineness by the movement between roller and disk
Rotation centrifugal force through mill overflows outward.There are a vane, the air-flow of rising to act on material by vane at mill outer, on
Rise air-flow material can be prevented to fall by vane, can also allow that useless matter more great in material to fall into vane in the following, through
Cross scraper plate discharge body.The material for meeting fineness requirement is delivered up by air-flow, after material reaches the grinding machine top of milling equipment,
It is detached by separator, the material of a certain fineness is sent out into grinding machine, the larger material of granularity is thrown to mill chamber inner wall by separator
On, then mill is fallen into, again grinding.The material for meeting fineness requirement is transported after rotoclone collector 12 collects by screw conveyor 15
It send to storage bucket elevator and library and pushes up skewed slot hence into raw material homogenizing silo.The exhaust gas for going out mill enters bagroom through circulating fan
13, it is discharged into air by cellar for storing things last row wind turbine and smokestack by treated the gas of bagroom 13, and by bagroom
13 powders collected enter raw material homogenizing silo by chain-linked conveyer 14.
Wherein, raw material vertical-grinding system provided by the invention can be independent in the drying raw meal and grinding without cement
The drying of carbide slag is carried out, details are provided below：
The wet carbide slag in dispensing library 20 is delivered to drying grinding by the raw material conveyor system in raw material vertical-grinding system
System 1, wet carbide slag is by drying grinding, and dry carbide slag powder after drying is through rotoclone collector 13 and bagroom 12
It collects, it is hereafter, the dry carbide slag after collection is defeated by the Pneumatic conveying pump 41 and Pneumatic conveying pipeline 42 of air-transport system
It send into the dry carbide slag storage cavern 21 in dispensing library.The dry carbide slag being stored in dry carbide slag storage cavern 21 both can directly be made
For the raw material of cement manufacture, power plant can also be directly fed, is used as desulfurizing agent for power plant.It is production when needing grinding raw material
When cement prepares, the Pneumatic conveying pump 41 under conveyer is closed, after the raw meal powder after drying is full of the feed pipe under conveyer,
Raw meal powder, which continues to move ahead, to be then restored in original raw material conveyor system, and normal drying raw meal and grinding flow operation are carried out.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (9)
1. a kind of raw material vertical-grinding system, including drying grinding system, raw meal proportioning transport system and the raw material for including dispensing library
Feed proportioning system；The drying grinding system includes milling equipment, warm-air supply system and material collection equipment, which is characterized in that
The dispensing library includes wet carbide slag storage cavern and dry carbide slag library storage cavern, and the wet carbide slag storage cavern is defeated by the raw meal proportioning
Send system that wet carbide slag is delivered to the drying grinding system；The raw material vertical-grinding system further includes air-transport system, is used
It is delivered to the dry carbide slag storage cavern in the dry carbide slag for collecting the material collection equipment.
2. raw material vertical-grinding system according to claim 1, which is characterized in that the air-transport system includes Geldart-D particle
Pump and the Pneumatic conveying pipeline being connect with the Pneumatic conveying pump, the Pneumatic conveying pump connect the material collection equipment, institute
It states Pneumatic conveying pump and connects the dry carbide slag storage cavern.
3. raw material vertical-grinding system according to claim 2, which is characterized in that the drying grinding system includes conveyer,
The material that material collection equipment is collected is delivered to raw material homogenizing silo by the conveyer.
4. raw material vertical-grinding system according to claim 3, which is characterized in that the conveyer includes chain-linked conveyer and spiral shell
Revolve conveyer.
5. raw material vertical-grinding system according to claim 4, which is characterized in that the material collection equipment includes cyclone dust collection
Device and bagroom, the bagroom connect the chain-linked conveyer, and the rotoclone collector connects the spiral transferring
Send machine.
6. raw material vertical-grinding system according to claim 4, which is characterized in that the chain-linked conveyer and the helical feed
Machine is respectively connected with Pneumatic conveying pump.
7. the raw material vertical-grinding system according to any one of claim 2-6, which is characterized in that the Pneumatic conveying pump is envelope
Material pump.
8. the raw material vertical-grinding system according to any one of claim 1-6, which is characterized in that the dry carbide slag storage cavern connects
Deduster is connect, the gas for that will convey dry carbide slag is discharged.
9. the raw material vertical-grinding system according to any one of claim 1-6, which is characterized in that the raw meal proportioning delivery system
System includes belt feeder, and wet carbide slag is delivered to the drying grinding system by the belt feeder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610896217.4A CN106269178B (en) | 2016-10-13 | 2016-10-13 | A kind of raw material vertical-grinding system |
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| CN201610896217.4A CN106269178B (en) | 2016-10-13 | 2016-10-13 | A kind of raw material vertical-grinding system |
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| CN106269178A CN106269178A (en) | 2017-01-04 |
| CN106269178B true CN106269178B (en) | 2018-09-14 |
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| CN201610896217.4A Active CN106269178B (en) | 2016-10-13 | 2016-10-13 | A kind of raw material vertical-grinding system |
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| CN108178534B (en) * | 2018-02-28 | 2020-10-02 | 中国成达工程有限公司 | Safe and environment-friendly treatment system and process for carbide slag in cement production and storage |
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| CN106269178A (en) | 2017-01-04 |
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