CN105271855B - Cement drying device applied in cement preparation industry - Google Patents
Cement drying device applied in cement preparation industry Download PDFInfo
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- CN105271855B CN105271855B CN201510643972.7A CN201510643972A CN105271855B CN 105271855 B CN105271855 B CN 105271855B CN 201510643972 A CN201510643972 A CN 201510643972A CN 105271855 B CN105271855 B CN 105271855B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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Abstract
The invention discloses a cement drying device applied in the cement preparation industry. The cement drying device comprises a grate cooler provided with an exhaust gas outlet, drying equipment communicated with the exhaust gas outlet of the grate cooler, exhaust equipment communicated with the drying equipment and a dust removal device communicated with the exhaust equipment. According to the exhaust equipment, hot exhaust gas discharged by the grate cooler is extracted and passes through the drying equipment to reach the dust removal device to undergo dedusting treatment. According to the invention, the hot exhaust gas outlet of the grate cooler is connected to the cement drying equipment, and waste heat of exhaust gas produced after cooling a clinker by the grate cooler is used to dry an admixture. A heat source required by the method is provided by exhaust gas from the grater cooler, the link of firing coal in a fluidized bed furnace is replaced, and coal for drying is saved. Exhaust gas after drying is discharged into a kiln head dust removal of an original kiln system to be processed. Investment of the technical project is saved. Meanwhile, personnel at the post of an admixture drying system are minimized, waste heat is utilized and heat loss and waste are reduced.
Description
Technical field
The invention belongs to cement drying unit field, and in particular to a kind of to be applied to the cement drying dress that cement prepares industry
Put.
Background technology
At present, the stoving process technology of cement mixing material is to burn coal using fluidized bed furnace to provide 900 DEG C of hot gas as thermal source
Mixing material is dried, and the waste gas after drying carries out dust removal process using the supporting dust-precipitator being separately provided.
In the past using it is more be monotubular dryer or vertical tube dryer, at present using it is more be three-cylinder drier, but
No matter the dryer of which kind of form arrangement provides thermal source using fluidized bed furnace.From three-cylinder drier ability up to 40 tons per little
When, need 600,000 tons and the above annual according to unrestricted class cement grinding production capacity in present national industrial policies adjustment catalogue, mill
3.8 meters of requirements above of machine format diameter, then need about 33 tons of mixing materials, the technical program meet actual life completely per hour
Product demand.
And the clinker cooling exhausted air quantity and heat energy of less than 2000 tons clinker production lines of daily output are not suitable for cogeneration use.
According to the cement afterheat generation unit that the current country is general, the kiln hood waste heat for being both used in producing daily 2000 tons of grog above production lines is sent out
Electricity is used, and the waste gas for producing less than 2000 tons clinker production lines daily is directly discharged into air, waste heat because being not suitable for cogeneration
It is not fully used.
The content of the invention
It is an object of the invention to can provide a kind of cement that is applied to prepares industrial cement drying unit, the present invention
The hot waste gas outlet of grate-cooler is connected with the drying plant of cement, is entered using the waste gas residual heat produced after grate-cooler clinker cooling
Row drying mixing material, the thermal source required in the middle of this method are provided by grate-cooler waste gas, are replaced fluidized bed furnace to burn coal link, are saved
Drying coal, the waste gas after drying enter the kiln hood deduster of former kiln system and are processed, and save the investment of the technological project,
The personnel depaly in mixing material drying system post is reduced simultaneously, waste heat is able to using reduction heat loss, waste.
The present invention provide technical scheme be：
It is a kind of to be applied to the cement drying unit that cement prepares industry, including：
Grate-cooler, which is provided with waste gas outlet；
Drying plant, which is connected with the waste gas outlet of the grate-cooler；
Exhaust equipment, which is connected with the drying plant；
Dust arrester, which is connected with the exhaust equipment；
Wherein, the exhaust equipment is set to extract the hot waste gas of the grate-cooler discharge and reaches via the drying plant
The dust arrester carries out dust removal process.
Preferably, the described cement that is applied to prepares industrial cement drying unit, and the drying plant includes：
Cylinder, which is cylindrical-shaped structure, and the outside of the cylinder is additionally provided with one layer of outer tube wall, the barrel of the cylinder and institute
The cavity for forming a connection between outer tube wall is stated, the outer tube wall is provided with multiple first gas outlets close to each other；
Hot gas duct, which is located in the cylinder and is connected with the waste gas outlet of the grate-cooler, the hot gas duct bag
Two the first sub-pipes being set parallel to each other are included, each described first sub-pipes one end is connected with the waste gas outlet of the grate-cooler
Logical, the other end is connected with the cavity structure；Each described first sub-pipes includes that two set in double-spiral structure each other
Multiple baffle layers are sequentially provided with along its length in the second sub-pipes put and interconnect, each described second sub-pipes,
The baffle layer includes the multiple spaced baffle plate arranged along its inner periphery, the baffle plate of the two neighboring baffle layer
Stagger setting.
Preferably, the described cement that is applied to prepares industrial cement drying unit, and the exhaust equipment includes：
Housing, which is cylindrical-shaped structure；
Connecting pipe, which includes the first pipeline of linear type, positioned at described first pipeline one end and communicate therewith it is many
Individual flexible pipe, and be intervally installed in the multiple of first pipeline positioned at the first pipeline other end vertical connection
Second pipe；Each described flexible pipe is covered a first gas import and is connected with the cavity, each described second pipe
Road is entered in the housing through the outer wall of the housing, and is passed the outer wall of the housing and connected with the dust arrester, often
The individual second pipe is provided with the accommodating chamber that a volume can accommodate ventilating fan, wherein, the flexible pipe near middle position
Quantity is consistent with the quantity of the first gas import, and corresponds；
Multiple ventilating fans, which is separately positioned in each described accommodating chamber, and the ventilating fan is set to draw the cavity
Interior gas is emitted in the dust arrester via the connecting pipe.
Preferably, the described cement that is applied to prepares industrial cement drying unit, and the dust arrester is removed for kiln hood
Dirt device.
Preferably, the described cement that is applied to prepares industrial cement drying unit, and the baffle plate is sub with described second
The angle of pipeline is set to stop the flowing of waste gas.
Preferably, the described cement that is applied to prepares industrial cement drying unit, is spaced on each described baffle plate
It is provided with multiple circular protrusions.
Preferably, the described cement that is applied to prepares industrial cement drying unit, and the baffle layer is included described in 3
Baffle plate.
Preferably, the described cement that is applied to prepares industrial cement drying unit, the inwall of second sub-pipes
It is coated with heat-resistant material layer.
The present invention at least includes following beneficial effect：
(1) the hot waste gas outlet of grate-cooler is connected by the present invention with the drying plant of cement, using grate-cooler clinker cooling
The waste gas residual heat for producing afterwards carries out drying mixing material, and the thermal source required in the middle of this method is provided by grate-cooler waste gas, replaces
Fluidized bed furnace burns coal link, saves drying coal, and the waste gas after drying enters the kiln hood deduster of former kiln system and processed, and saves
The investment of the technological project, while reduce the personnel depaly in mixing material drying system post, more makes waste heat be able to using subtracting
Few heat loss, waste；
(2) drying plant is provided with two sub-pipes by the present invention, and each first sub-pipes is set to two in double-helix
The second sub-pipes, with usual straight line arrange pipeline, compare, specific surface area is bigger, need drying cement and heating pipe
Contact area between road is bigger, and drying effect is more preferable；
And by the outlet of the second sub-pipes and cavity structure, the waste gas of the heat excluded from grate-cooler enters the second sub-pipes
Afterwards, then from the outlet of the second sub-pipes enter in cavity structure, make full use of the amount of residual heat of hot gas to carry out cement secondary
Drying, had both taken full advantage of the energy, had reduced cost, and can avoid EGT too high to follow-up equipment, such as air draft again
Infringement caused by equipment；
(3) exhaust equipment is provided with multiple flexible pipes and is provided with one a pair of multiple first gas outlets in outer tube wall respectively by the present invention
Should connect, multiple flexible pipes absorb the hot waste gas in cavity, and each flexible pipe is respectively equipped with an exhaust blower, each exhaust blower list
The hot gas solely extracted in cavity is entered in cleaner via hot channel again, is broken the whole up into parts, and than a conventional pipe, is absorbed
More preferably, drying effect is more preferable for effect；
(4) present invention is provided with the baffle plate for stopping waste gas flowing in each second sub-pipes so that waste gas velocity of liquid assets is more
Slowly, the time of contact between waste gas and cement to be dried is further improved, drying effect is effectively improved.
(5) present invention is interval with multiple circular protrusions on baffle plate, can further hinder the flowing of waste gas, increases
Time of contact between waste gas and cement to be dried, effectively improve drying effect.
Description of the drawings
Fig. 1 is the configuration diagram of the cement drying unit for being applied to cement preparation industry of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in figure 1,
It is a kind of to be applied to the cement drying unit that cement prepares industry, including：
Grate-cooler 1, which is provided with waste gas outlet；
Drying plant, which is connected with the waste gas outlet of the grate-cooler 1；
Exhaust equipment, which is connected with the drying plant 2；
Dust arrester 4, which is connected with the exhaust equipment；
Wherein, the exhaust equipment is set to extract the hot waste gas of the discharge of the grate-cooler 1 and arrives via the drying plant
Dust removal process is carried out up to the dust arrester 4.
Described is applied to the cement drying unit that cement prepares industry, and the drying plant includes：
Cylinder 210, which is cylindrical-shaped structure, and the outside of the cylinder 210 is additionally provided with one layer of outer tube wall 211, the cylinder
Barrel and the outer tube wall 211 between form the cavity that connects, the outer tube wall 211 is provided with multiple close to each other the
One gas vent 212；
Hot gas duct, which is located in the cylinder 210 and is connected with the waste gas outlet of the grate-cooler 1, the heating pipe
Road includes two the first sub-pipes being set parallel to each other, the waste gas of each described first sub-pipes one end and the grate-cooler 1
Outlet, the other end are connected with the cavity structure；Each described first sub-pipes includes that two is in double helix each other
Structure setting the second sub-pipes 221 for interconnecting, are sequentially provided with each described second sub-pipes 221 along its length
Multiple baffle layers, the baffle layer include the multiple spaced baffle plate arranged along its inner periphery, the two neighboring baffle plate
The baffle plate of layer staggers setting.
Described is applied to the cement drying unit that cement prepares industry, and the exhaust equipment 3 includes：
Housing 310, which is cylindrical-shaped structure；
Connecting pipe 320, which includes the first pipeline 321 of linear type, positioned at described first pipeline, 321 one end and and its
Multiple flexible pipes 322 of connection, and positioned at 321 other end of the first pipeline vertical connection in first pipeline 321
Multiple second pipes 323 being intervally installed；Each described flexible pipe 322 cover the first gas import 212 and with
The cavity connection, each described second pipe 323 is entered in the housing 310 through the outer wall of the housing 310, and is passed
The outer wall of the housing 310 is connected with the dust arrester 4, and each described second pipe 323 is provided with one near middle position
Individual volume can accommodate the accommodating chamber of ventilating fan, wherein, the quantity of the quantity of the flexible pipe 322 and the first gas import 230
Unanimously, and correspond；
Multiple ventilating fans 330, which is separately positioned in each described accommodating chamber, and the ventilating fan 330 is set to draw institute
The gas stated in cavity is emitted in the dust arrester 4 via the connecting pipe 320.
Described is applied to the cement drying unit that cement prepares industry, and the dust arrester 4 is kiln hood deduster.
Described is applied to the cement drying unit that cement prepares industry, the baffle plate and second sub-pipes 221
Angle is set to stop the flowing of waste gas.
Described is applied to the cement drying unit that cement prepares industry, is interval with multiple circles on each described baffle plate
Shape is raised.
Described is applied to the cement drying unit that cement prepares industry, and the baffle layer includes 3 baffle plates.
Described is applied to the cement drying unit that cement prepares industry, and the inwall of second sub-pipes 221 is coated with
Heat-resistant material layer.
Although embodiment of the present invention is disclosed as above, which is not limited in listed fortune in specification and implementation
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily real
Now other modification, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited to
Specific details and shown here as the legend with description.
Claims (7)
1. it is a kind of to be applied to the cement drying unit that cement prepares industry, it is characterised in that to include：
Grate-cooler, which is provided with waste gas outlet；
Drying plant, which is connected with the waste gas outlet of the grate-cooler；
Exhaust equipment, which is connected with the drying plant；
Dust arrester, which is connected with the exhaust equipment；
Wherein, the exhaust equipment is set to extract the hot waste gas of the grate-cooler discharge via described in drying plant arrival
Dust arrester carries out dust removal process；
The drying plant includes：
Cylinder, which is cylindrical-shaped structure, and the outside of the cylinder is additionally provided with one layer of outer tube wall, and the barrel of the cylinder is outer with described
The cavity of a connection is formed between barrel, and the outer tube wall is provided with multiple first gas outlets close to each other；
Hot gas duct, which is located in the cylinder and is connected with the waste gas outlet of the grate-cooler, and the hot gas duct includes two
Individual the first sub-pipes being set parallel to each other, each described first sub-pipes one end are connected with the waste gas outlet of the grate-cooler,
The other end is connected with the cavity structure；Each described first sub-pipes includes that two are arranged simultaneously in double-spiral structure each other
Multiple baffle layers are sequentially provided with along its length in the second sub-pipes for interconnecting, each described second sub-pipes, it is described
Baffle layer includes the multiple spaced baffle plate arranged along its inner periphery, and the baffle plate of the two neighboring baffle layer staggers
Arrange.
2. the cement drying unit that cement prepares industry is applied to as claimed in claim 1, it is characterised in that the air draft sets
It is standby to include：
Housing, which is cylindrical-shaped structure；
Connecting pipe, which includes the first pipeline of linear type, positioned at described first pipeline one end and communicate therewith it is multiple soft
Pipe, and positioned at the first pipeline other end vertical connection in first pipeline it is multiple be intervally installed second
Pipeline；Each described flexible pipe is covered a first gas import and is connected with the cavity, and each described second pipe is worn
The outer wall of the housing is crossed in the housing, and passes the outer wall of the housing and connected with the dust arrester, each institute
State second pipe the accommodating chamber that a volume can accommodate ventilating fan, wherein, the quantity of the flexible pipe is provided near middle position
It is consistent with the quantity of the first gas import, and correspond；
Multiple ventilating fans, which is separately positioned in each described accommodating chamber, and the ventilating fan is set to draw in the cavity
Gas is emitted in the dust arrester via the connecting pipe.
3. the cement drying unit that cement prepares industry is applied to as claimed in claim 1, it is characterised in that the dedusting dress
It is set to kiln hood deduster.
4. be applied to as claimed in claim 1 cement prepare industry cement drying unit, it is characterised in that the baffle plate with
The angle of second sub-pipes is set to stop the flowing of waste gas.
5. the cement drying unit that cement prepares industry is applied to as claimed in claim 1, it is characterised in that each described gear
Multiple circular protrusions are interval with plate all.
6. the cement drying unit that cement prepares industry is applied to as claimed in claim 1, it is characterised in that the baffle layer
Including 3 baffle plates.
7. the cement drying unit that cement prepares industry is applied to as claimed in claim 1, it is characterised in that described second is sub
The inwall of pipeline is coated with heat-resistant material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510643972.7A CN105271855B (en) | 2015-10-08 | 2015-10-08 | Cement drying device applied in cement preparation industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510643972.7A CN105271855B (en) | 2015-10-08 | 2015-10-08 | Cement drying device applied in cement preparation industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105271855A CN105271855A (en) | 2016-01-27 |
| CN105271855B true CN105271855B (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510643972.7A Active CN105271855B (en) | 2015-10-08 | 2015-10-08 | Cement drying device applied in cement preparation industry |
Country Status (1)
| Country | Link |
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| CN (1) | CN105271855B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980169A (en) * | 2019-12-31 | 2020-04-10 | 浙江清湖建材股份有限公司 | Material conveying device for building engineering cement manufacturing plant |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1251572A (en) * | 1969-09-02 | 1971-10-27 | ||
| CN2625386Y (en) * | 2003-06-06 | 2004-07-14 | 罗汉云 | Drying machine utilizing waste heat from cooling cement clinker in a turning kiln |
| CN1840999A (en) * | 2005-03-29 | 2006-10-04 | 盐城市科宝建材环保设备有限公司 | Method for drying materials using low temperature waste heat of cement factory |
| CN201704216U (en) * | 2010-03-11 | 2011-01-12 | 江山市何家山水泥有限公司 | Low-temperature exhaust-heat material drying system of cement dry-method rotary kiln |
| CN202988143U (en) * | 2012-12-24 | 2013-06-12 | 攀钢集团攀枝花钢钒有限公司 | Spiral conveyor with drying function |
| CN103884167A (en) * | 2014-04-04 | 2014-06-25 | 山东德澳精细化学品有限公司 | Spiral conveying and drying device for chemical materials |
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| Publication number | Publication date |
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| CN105271855A (en) | 2016-01-27 |
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Inventor after: Zhu Xiaoyu Inventor after: Wei Baoxian Inventor after: Li Longhai Inventor before: Zhu Xiaoyu Inventor before: Wei Baoxian Inventor before: Li Hailong |
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| GR01 | Patent grant |