CN208857157U - Cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash - Google Patents
Cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash Download PDFInfo
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- CN208857157U CN208857157U CN201821441662.2U CN201821441662U CN208857157U CN 208857157 U CN208857157 U CN 208857157U CN 201821441662 U CN201821441662 U CN 201821441662U CN 208857157 U CN208857157 U CN 208857157U
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- flyash
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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
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Abstract
Cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash, belongs to trade waste disposal field.Including raw material homogenizing silo (9), it is characterized by: the raw material homogenizing silo (9) is mating to be provided with storage elevator (15), raw material air flume (12), machine for zipper (13) are set before being put in storage the feeding inlet of elevator (15), flyash repository (3) are equipped with above the machine for zipper (13), the discharge port of flyash repository (3) bottom is equipped with bottom storehouse discharging electric gate valve (5), is equipped with weighing balance (6) below the discharge port of flyash repository (3) bottom.The present apparatus can largely digest high-efficiency pulverized coal boiler fly ash and not generate new pollutant, and flyash is all reused as the raw material of clinker.
Description
Technical field
Cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash, belongs to trade waste disposal field.
Background technique
As the use of high-efficiency pulverized coal boiler produces a large amount of flyash, these flyash are treated as a new ring
Problem is protected, being primarily due to coal dust, efficiency of combustion is different in the boiler, the flyash and traditional coal-fired boiler in power plant flyash
It compares, parameter has very big discreteness, brings larger difficulty using the control of product quality of unit to traditional flyash.
Compared with conventional power plants flyash, the flyash that high-efficiency pulverized coal boiler generates is had the following characteristics that
(1), loss on ignition is higher (reaching as high as 50%), generally contains certain calorific value (about 873K-cal/kg).Traditional fine coal
Ash is used primarily as a kind of mixing material of cement grinding plant, and high-efficiency pulverized coal boiler fly ash loss on ignition is excessively high, unburned carbon
It is harmful components, loss on ignition is bigger, and phosphorus content is higher, and the water requirement of commerical ready-mixed concrete is bigger, it is improved so as to cause water-cement ratio,
Giving full play to for flyash effectiveness can be seriously affected, while excessively high can seriously affect of flyash loss on ignition contains in commerical ready-mixed concrete
The control of tolerance.
(2), higher (>=5.0) f-CaO.Cement free calcium require control within 1.5%, high free calcium it is flyash mixed
It is exceeded to enter will cause cement free calcium, it is bad in turn result in stability, or even serious building collapse accident can occur.
(3), ingredient fluctuation is larger.Because high-efficiency pulverized coal boiler fly ash supply producer's quantity is more (up to tens), rule
Mould is relatively small, and the process flows such as generation environment, desulphurization denitration have differences, the fine coal ash component for causing different manufacturers to provide
It fluctuates larger, is not suitable for pursuing the stable cement grinding plant of quality.
High-efficiency pulverized coal boiler is a kind of steam boiler that frequent start-stop is needed because of production technology reason, is different from common fire coal
Boiler has the characteristics that high combustion efficiency, stop and start speed are fast, outlet fume amount is few, belongs to the emerging environmental protection and energy saving skill of government's promotion
Art, the green power of industry in " Shandong Province " " implementing plan scheme ", " 2015 annual Zibo City's high-efficiency pulverized coal boiler demonstrative project construction
In the public documents such as plan (black through letter save word [2015] 59) ", clear stipulaties need to replace biography with " high-efficiency pulverized coal boiler "
System coal-burning boiler, the waste effectively pulverized-coal fired boiler flyash that high-efficiency pulverized coal boiler generates, because of multinomial technical indicator and traditional powder
Coal ash has larger difference (free calcium is high, fire loss volume), and subsequent disposition means are mature not yet, at present country's mainstream disposal options
It is: is used in mixed way using a small amount of boiler fly ash traditional flyash of arranging in pairs or groups, uses cement preparation section as mixing material, but in order to
Cement index is not influenced, and disposition amount is less, higher cost, and because user is more, scale dissipates that small, efficiency of combustion is different, quality is unstable
It is fixed, it is easy to adversely affect downstream using unit mass and cost, using the unit of conventional power plants flyash because above-mentioned
On Index is not available；Conventional refuse disposal mode (as filled) takes up a large area, is costly, being restricted by environmental protection；More
Advanced, reasonable disposal options are also in the exploratory stage.
This kind of flyash disposition difficulty is big, constrains the all-round popularization of high-efficiency pulverized coal boiler technology and popularizes, forms development
Bottleneck brings larger pressure to efforts at environmental protection.The present invention by flyash by measuring equipment mix cement burning before raw material in,
After homogenizing is handled, it is directly entered preheater dore furnace together with raw material, by the calcining of rotary kiln, it is ripe to ultimately generate cement
Material, can largely digest high-efficiency pulverized coal boiler fly ash and not generate new pollutant, original of the flyash as clinker
Material is all reused, and has been saved natural resources, has been the production technology for having very much promotional value.
Utility model content
Technical problem to be solved by the utility model is: overcoming the deficiencies of the prior art and provide a kind of disposition measures big water
Stall cooperative disposal pulverized-coal fired boiler fine coal apparatus for ash.
The technical scheme adopted by the utility model to solve the technical problem is as follows: the cement kiln synergic processing pulverized-coal fired boiler powder
Coal ash device, including raw material homogenizing silo, it is characterised in that: the raw material homogenizing silo is mating to be provided with storage elevator, storage
Raw material air flume, machine for zipper are set before the feeding inlet of elevator, are equipped with flyash repository, flyash above the machine for zipper
The discharge port of repository bottom is equipped with bottom storehouse discharging electric gate valve, is equipped with metering below the discharge port of flyash repository bottom
Claim.
The present apparatus increases flyash repository and bottom storehouse discharging electric gate valve and weighing balance in raw material preparation workshop section；Add spiral shell
Rotation conveyer send the flyash that weighing balance exports into machine for zipper；Before flyash is mixed cement burning by measuring equipment
In raw material, after homogenizing is handled, preheater dore furnace is directly entered together with raw material, by the calcining of rotary kiln, most throughout one's life
At clinker, it can largely digest high-efficiency pulverized coal boiler fly ash and not generate new pollutant, flyash is as cement
The raw material of clinker is all reused.
Preferably, dust-precipitator is equipped at the feeding port at the top of the flyash repository.In order to guarantee repository
In storehouse negative pressure and prevent flour dust overflow repository library top installation dust-precipitator.
Preferably, conveyance conduit is equipped at the feeding port at the top of the flyash repository.It adds for powder material tank
The conveyance conduit of vehicle discharging facilitates flyash being sent into coal ash repository.Flyash after coal powder boiler combustion is by powder tank car
Cement clinker production line place is collected and transported, is sent into flyash by conveyance conduit using the compressed air of powder tank car
In repository.
Preferably, the lower section of the weighing balance is equipped with screw conveyor, and the screw conveyor is equipped with kiln tail waste heat
Boiler collects grey material charging region.
Preferably, the machine for zipper is equipped with the grey material charging region of dust-precipitator collection and conditioning Tower falls grey material charging region.Repository
In flyash it is uniform and stable according to a certain percentage discharged electric gate valve and weighing balance by bottom storehouse, more than flyash and kiln tail
Heat boiler collection ash mixing is sent in machine for zipper grey and conditioning Tower with collecting for the compound dust-precipitator of electric bag by screw conveyor
Fall grey mixing.
Preferably, the feeding inlet of corresponding storage elevator is equipped with machine for zipper electric gate valve on the machine for zipper.It is usually raw
Under occurrence state, the collection ash of flyash and each equipment is mixed and delivered at electric gate valve by machine for zipper, and mixed material passes through electricity
The raw material that dynamic gate valve and raw material air flume are conveyed enter storage elevator mixed lifting, then are sent into raw material through upper air flume
In homogenizing storehouse.After the raw material homogenized library storage homogenizing of flyash, through measuring equipment, air flume, enters kiln elevator, enters
Kiln air flume feeds calcination equipment, is sintered into clinker.
Under special working condition, machine for zipper electric gate valve can be closed, and machine for zipper is by the receipts of flyash and each equipment
Collection ash is mixed and delivered to head feed opening, and mixed material enters kiln with the raw material that homogenizing storehouse out is conveyed through lower air flume and mentions
Machine mixed lifting is risen, then is entered kiln air flume feeding calcination equipment, is sintered into clinker.
Compared with prior art, have possessed by the cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash of the utility model
Beneficial effect is: the present apparatus increases flyash repository and bottom storehouse discharging electric gate valve and weighing balance in raw material preparation workshop section；It gathers dust
Device ensure that negative pressure in the storehouse of repository and prevent flour dust overflow.Add the conveyance conduit for powder tank car discharging, facilitate by
Flyash is sent into coal ash repository.Flyash after coal powder boiler combustion is collected by powder tank car and transports clinker production
The field of line, flyash is sent into repository by conveyance conduit using the compressed air of powder tank car.Add screw conveyor
The flyash that weighing balance exports is sent into machine for zipper；By flyash by measuring equipment mix cement burning before raw material in,
After homogenizing is handled, it is directly entered preheater dore furnace together with raw material, by the calcining of rotary kiln, it is ripe to ultimately generate cement
Material, can largely digest high-efficiency pulverized coal boiler fly ash and not generate new pollutant, original of the flyash as clinker
Material is all reused, and has saved natural resources.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash of the utility model.
Wherein, 1, powder tank car 2, conveyance conduit 3, flyash repository 4, dust-precipitator 5, bottom storehouse discharging electric gate valve
6, weighing balance 7, screw conveyor 8, upper air flume 9, raw material homogenizing silo 10, enter kiln elevator 11, enter kiln air flume
12, the lower air flume of raw material air flume 13, machine for zipper 14, machine for zipper electric gate valve 15, storage elevator 16.
Specific embodiment
Fig. 1 is the most preferred embodiment of the utility model, and 1 pair of the utility model is described further with reference to the accompanying drawing.
Referring to attached drawing 1: a kind of cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash of the utility model: equal including raw material
Change library 9, the library top of raw material homogenizing silo 9 is put in storage the pan feeding of elevator 15 with being set below the discharge port of storage elevator 15
Mouth is correspondingly arranged at below the discharge port of raw material air flume 12, and the feeding inlet of corresponding storage elevator 15, which is equipped with, on machine for zipper 13 draws
Chain machine electric gate valve 14；It is put in storage below the discharge port of 15 bottom of elevator and is equipped with lower air flume 16, lower air flume 16 goes out
The tail end that material mouth is located at machine for zipper 13 is located above the feeding inlet into kiln elevator 10, and the discharge port for entering kiln elevator 10 has
Enter kiln air flume 11；Flyash repository 3 is equipped with above machine for zipper 13, the discharge port of 3 bottom of flyash repository is equipped with
The discharge port lower section of bottom storehouse discharging electric gate valve 5,3 bottom of flyash repository is equipped with weighing balance 6；The top of flyash repository 3
Dust-precipitator 4 is equipped at the feeding port in portion；Conveyance conduit 2 is equipped at the feeding port at the top of flyash repository 3；Weighing balance 6
Lower section is equipped with screw conveyor 7, and the screw conveyor 7 is equipped with kiln tail waste heat boiler and collects grey material charging region；On machine for zipper 13
Grey material charging region is collected equipped with the compound dust-precipitator of electric bag and conditioning Tower falls grey material charging region.
Flyash repository 3 is the cylinder steel plate library of Φ 8.5x18m, effective height 22.5m, storage capacity 1000m in library3；
Bottom storehouse discharges electric gate valve 5 as electronic, both valves 800*800mm；
Weighing balance 6 claims for rotor type measuring, feeding capacity: 1-10t/h；
The conveying capacity of screw conveyor 7 is 50t/h.
The present apparatus increases flyash repository 3 and bottom storehouse discharging electric gate valve 5 and weighing balance 6 in raw material preparation workshop section；Increase
If flyash is sent into flyash repository 3 by the conveyance conduit 2 for 1 discharging of powder tank car；Adding screw conveyor 7 will measure
The flyash of 6 outputs is claimed to send into machine for zipper 13；Negative pressure and prevent flour dust overflow from existing in storehouse in order to guarantee flyash repository 3
The library top installation dust-precipitator 4 of flyash repository 3.Flyash after coal powder boiler combustion is collected and is transported by powder tank car 1
Flyash is sent into flyash by conveyance conduit 2 using the compressed air of powder tank car 1 and stored by cement clinker production line place
In library 3.The uniform and stable bottom storehouse that passes through discharges 5 He of electric gate valve according to a certain percentage for flyash in flyash repository 3
Weighing balance 6, flyash and kiln tail waste heat boiler collect ash mix pass through screw conveyor 7 be sent in machine for zipper 13 it is compound with electric bag
The collection ash of dust-precipitator falls grey mixing with conditioning Tower.
Under usual production status, it is electronic that the collection ash of flyash and each equipment is mixed and delivered to machine for zipper by machine for zipper 13
At gate valve 14, mixed material enters storage by the raw material that machine for zipper electric gate valve 14 and raw material air flume 12 are conveyed and is promoted
15 mixed lifting of machine, then be sent into raw material homogenizing silo 9 through upper air flume 8.It is stored up mixed with the raw material of flyash through raw material homogenizing silo 9
After depositing homogenizing, through measuring equipment, lower air flume 16, enter kiln elevator 10, enter kiln air flume 11 feed calcination equipment, calcining
At clinker.
Under special working condition, machine for zipper electric gate valve 14 can be closed, and machine for zipper 13 is by flyash and each equipment
Collection ash be mixed and delivered to head feed opening, the raw material that mixed material and raw material homogenizing silo 9 are conveyed through lower air flume 16
Into entering 10 mixed lifting of kiln elevator, then entered kiln air flume 11 and feed calcination equipment, is sintered into clinker.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is all without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Matter any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (6)
1. cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash, including raw material homogenizing silo (9), it is characterised in that: the life
Material homogenizing storehouse (9) is mating to be provided with storage elevator (15), sets raw material air flume before being put in storage the feeding inlet of elevator (15)
(12), machine for zipper (13), the machine for zipper (13) top are equipped with flyash repository (3), flyash repository (3) bottom
Discharge port is equipped with bottom storehouse discharging electric gate valve (5), is equipped with weighing balance (6) below the discharge port of flyash repository (3) bottom.
2. cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash according to claim 1, it is characterised in that: the powder
Dust-precipitator (4) are equipped at the feeding port at the top of coal ash repository (3).
3. cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash according to claim 1, it is characterised in that: the powder
Conveyance conduit (2) are equipped at the feeding port at the top of coal ash repository (3).
4. cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash according to claim 1, it is characterised in that: the meter
Amount claims the lower section of (6) to be equipped with screw conveyor (7), and the screw conveyor (7) is equipped with kiln tail waste heat boiler collection ash and feeds intake
Area.
5. cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash according to claim 1, it is characterised in that: the drawing
Chain machine (13) is equipped with the grey material charging region of dust-precipitator collection and conditioning Tower falls grey material charging region.
6. cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash according to claim 1, it is characterised in that: the drawing
The feeding inlet of corresponding storage elevator (15) is equipped with machine for zipper electric gate valve (14) on chain machine (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441662.2U CN208857157U (en) | 2018-09-04 | 2018-09-04 | Cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441662.2U CN208857157U (en) | 2018-09-04 | 2018-09-04 | Cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208857157U true CN208857157U (en) | 2019-05-14 |
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ID=66416835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821441662.2U Active CN208857157U (en) | 2018-09-04 | 2018-09-04 | Cement kiln synergic processing pulverized-coal fired boiler fine coal apparatus for ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208857157U (en) |
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2018
- 2018-09-04 CN CN201821441662.2U patent/CN208857157U/en active Active
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