CN106316167B - A kind of production technology of oil shale ground slag suspension lime kiln - Google Patents
A kind of production technology of oil shale ground slag suspension lime kiln Download PDFInfo
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- CN106316167B CN106316167B CN201610854065.1A CN201610854065A CN106316167B CN 106316167 B CN106316167 B CN 106316167B CN 201610854065 A CN201610854065 A CN 201610854065A CN 106316167 B CN106316167 B CN 106316167B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
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Abstract
A kind of production technology of oil shale ground slag suspension lime kiln, described oil shale ground slag suspension lime kiln, during production, standby two kinds of raw materials：Coal dust, oil shale ground slag are raw material；Start kiln tail high-temperature blower and operation air-flow is produced by pipeline pump drainage, in pipeline after thermal current operation completely, oil shale ground slag is sent into spout, the gas solid separation that mixing thermal current is circulated by the suspension cooler of five series connection to rising mixed airflow respectively, the gas solid separation that lime solids particle is circulated in the suspension cooler by three series connection；Lime bin is entered by blanking pipe when lime solids particle is cooled to less than 100 DEG C；EGT in suspended preheater, which progressively declines, is down to 300 DEG C~350 DEG C；After being cooled to 200 DEG C by conditioning Tower, pass sequentially through kiln tail dust-precipitator and the Solid micro in waste gas is settled, discharged after the purification of kiln tail blower fan, kiln tail chimney, the pulverized limestone that kiln tail dust-precipitator is isolated enters lime bin by pipeline.
Description
Technical field
The present invention relates to the production technology that kiln transformation fires oil shale tailings, especially a kind of oil shale ground slag suspends
The production technology in limekiln.
Background technology
At present, oil shale is a kind of sedimentary rock containing oil, and reserves are very huge, is converted to shale oil about 4500
Hundred million tons, more than world petroleum resource amount；Indonesia's oil shale produces 80% ground slag, granularity after distillation system extracts oil product
Less than 1 ㎜, the main component of ground slag is CaCO3, content 85%, active lime can be produced；Domestic oil shale ground slag
Process equipment and method it is less, if directly discharge can seriously pollute environment, to the tailings of the granularity less than 1 ㎜, Wu Fayong
Rotary kiln and shaft furnace produce active lime, and China's active lime uses two kinds of production methods of rotary kiln and shaft furnace, requires and adopt
With block lime stone, the limestone granularity scope that rotary kiln uses is 20~50 ㎜, and the limestone granularity scope that shaft furnace uses is
40~80 ㎜, oil shale tailings can not produce active lime with rotary kiln and shaft furnace；Active lime is used as smelting, chemical industry, built
Build, health care, the basic material of the industry such as firepower electrical plant desulfurization, application is more and more extensive, and demand increases year by year, market
Have a extensive future；Meanwhile the current production capacity surplus situation of Cement Market in recent years is progressively aggravated, Cement Market continued downturn, cement
Price significantly drops, and part of cement factory and office are in half end-of-life state.
In view of above-mentioned many reasons, using oil shale ground slag as raw material, utilize the portion of existing predecomposition clinker line
Standby and facility is dispensed, existing predecomposition clinker line is improved as lime line and is hanged, it is necessary to increase lime in precalcining system bottom
Floating cooling system, it is possible to produce qualified lime, it is proposed that a kind of production technology of oil shale ground slag suspension lime kiln.
The content of the invention
The invention aims to the process equipment and method for overcoming current domestic oil shale ground slag are less, if directly
Run in put and can seriously pollute environment, to the tailings of the granularity less than 1 ㎜, active lime can not be produced with rotary kiln and shaft furnace,
China's active lime uses two kinds of production methods of rotary kiln and shaft furnace, requires using block lime stone, the stone that rotary kiln uses
Lime stone particle size range is 20~50 ㎜, and the limestone granularity scope that shaft furnace uses is 40~80 ㎜, and oil shale tailings can not be used back
Rotary kiln and shaft furnace produce active lime；Active lime is as the row such as smelting, chemical industry, building, health care, firepower electrical plant desulfurization
The basic material of industry, application is more and more extensive, and demand increases year by year, wide market；Meanwhile current water in recent years
Mud market production capacity surplus situation is progressively aggravated, and Cement Market continued downturn, cement price significantly drops, part of cement factory and office in
Half end-of-life state, by reasonably designing, there is provided a kind of production method of oil shale ground slag suspension lime kiln, with oil shale tail
Ground-slag is raw material, using the part equipment and facility of existing predecomposition clinker line, improves existing predecomposition clinker line
For lime line, it is necessary to increase lime suspension cooling system in precalcining system bottom, it is possible to qualified lime is produced, can
Turn waste into wealth, create economic benefit, and can realizes solid waste zero-emission, environmental protection.
The present invention adopts the following technical scheme that to realize above-mentioned goal of the invention：A kind of oil shale ground slag suspends
The production technology in limekiln, described oil shale ground slag suspension lime kiln, be by：C1 suspended preheaters, C2 suspended preheaters,
C3 suspended preheaters, C4 suspended preheaters, C5 gas-solid separators, dore furnace, the first suspension cooler, the second suspension cooler,
3rd suspension cooler, spout, material distributing valve, burner of decomposition furnace, conditioning Tower, kiln tail high-temperature blower, kiln tail dust-precipitator, kiln tail
Blower fan, kiln tail chimney, revolution kiln tail are formed；Conditioning Tower side sets revolution kiln tail, and dore furnace is set above revolution kiln tail；Humidification
Tower opposite side sets kiln tail chimney, and kiln tail high-temperature blower and kiln tail dust-precipitator and kiln are set gradually between conditioning Tower and kiln tail chimney
A tail wind machine, tandem tube is set between conditioning Tower bottom and kiln tail high-temperature blower and kiln tail dust-precipitator and kiln tail blower fan and kiln tail chimney
Road；Mouth sets lime conveyance conduit under kiln tail dust-precipitator, and the lime conveyance conduit port of export sets lime bin；
C5 gas-solid separators, C4 suspended preheaters, the thermal current pipeline opening of dore furnace bottom are set respectively above dore furnace
Top sets burner of decomposition furnace；Blanking pipe is set between mouth and dore furnace bottom side under C4 suspended preheaters；Dore furnace
Set between the side suitable for reading with C5 gas-solid separators top and rise heat of mixing airflow line, C5 gas-solid separators are suitable for reading to suspend with C4
Set between the side of preheater top and rise heat of mixing airflow line, material distributing valve is set below C5 gas-solid separators；
C3 suspended preheaters are set above C5 gas-solid separators, C3 suspended preheaters top side with C4 suspended preheaters
Set between mouthful and rise heat of mixing airflow line；The rising mixing hot gas of mouth and C5 gas-solid separators upper end under C3 suspended preheaters
Blanking pipe is set between flow tube road, and C3 suspended preheaters side sets C2 suspended preheaters, and C3 suspended preheaters are suitable for reading and C2
Set between suspended preheater side and rise heat of mixing airflow line, mouth and C4 suspended preheaters upper end under C2 suspended preheaters
Blanking pipe is set between rising heat of mixing airflow line；
C1 suspended preheaters are set above C3 suspended preheaters, C1 suspended preheaters side and C2 suspended preheaters it is suitable for reading it
Between set and rise heat of mixing airflow line, rise heat of mixing airflow line stage casing and spout be set, under C1 suspended preheaters mouth with
Blanking pipe is set between the rising heat of mixing airflow line of C3 suspended preheaters upper end, and C1 suspended preheaters are suitable for reading and conditioning Tower
Exhaust output tube road is set between suitable for reading；
Dore furnace side sets gradually the first suspension cooler, the second suspension cooler, the 3rd suspension cooler, dore furnace
Thermal current pipeline is set between lower mouth and the first suspension cooler are suitable for reading, sets first to suspend above the 3rd suspension cooler and cools down
Device, the 3rd suspension cooler side set the second suspension cooler, in the first suspension cooler side and the second suspension cooler
Set between mouthful and rise heat of mixing airflow line, risen and blanking pipe is set between heat of mixing airflow line and material distributing valve, first
Blanking pipe is set under suspension cooler between mouth and the rising heat of mixing airflow line of the 3rd suspension cooler upper end, and the 3rd is outstanding
Suitable for reading set between the second suspension cooler side of floating cooler rises mixing unheated air pipeline, unheated air pipeline bottom
Unheated air air inlet is set, the rising mixing unheated air pipe of mouth and the 3rd suspension cooler side under the second suspension cooler
Blanking pipe is set between road, and mouth sets blanking pipe under the 3rd suspension cooler；
During production, standby two kinds of raw materials：Coal dust is the fuel of burner of decomposition furnace；Granularity is less than 1 ㎜ oil shale ground slag
For raw material；
Start kiln tail high-temperature blower and operation air-flow is produced by pipeline pump drainage, air is upper by the 3rd suspension cooler side
Rise mixed airflow pipeline and enter the 3rd suspension cooler.
In pipeline after thermal current operation completely, oil shale ground slag is sent into spout, oil shale ground slag passes through rising
Heat of mixing airflow line enter C1 suspended preheaters in, by C1 suspended preheaters gas solid separation and preheating solid particle to
Lower flowing, enter C2 suspended preheaters by rising heat of mixing airflow line, pass through C2 suspended preheaters gas solid separation and preheating
Solid particle flow downward, enter C3 suspended preheaters by rising heat of mixing airflow line, pass through C3 suspended preheater gas
Gu the solid particle of separation and preheating flows downward, enter C4 suspended preheaters by rising heat of mixing airflow line, pass through C4
Suspended preheater gas solid separation and 600 DEG C of solid particles of preheating are flowed downward, and CaCO is realized into dore furnace3It is decomposed into CaO
And CO2, enter C5 gas-solid separators by rising heat of mixing airflow line, consolidated by the lime of C5 gas-solid separator gas solid separations
Body particle flows downward into suspension cooling system.
After temperature in dore furnace rises to 850 DEG C~900 DEG C, C5 gas-solid separators, C4 suspended preheaters, C3 are passed sequentially through
Suspended preheater, C2 suspended preheaters, the top of C1 suspended preheaters, during by C1 suspended preheater tops, C1 suspension preheatings
EGT in device, which progressively declines, is down to 300 DEG C~350 DEG C；Then less than 200 DEG C are cooled to by conditioning Tower and enter kiln tail height
Warm air machine, then pass sequentially through kiln tail dust-precipitator the Solid micro in waste gas is settled, kiln tail blower fan, kiln tail chimney purification
After discharge, the pulverized limestone that kiln tail dust-precipitator is isolated enters lime bin by pipeline.
Lime solids particle enters first by the material distributing valve and rising mixed airflow pipeline of C5 gas-solid separators bottom and hanged
In floating cooler, the suspension thermal current in the first suspension cooler is entered in dore furnace by thermal current pipeline；First suspension is cold
But the mixed airflow in device is flowed downward into the 3rd suspension cooler by the solid particle after gas solid separation and cooling；
It is outstanding by second meanwhile the 3rd rising mixed airflow pipeline in suspension cooler enters the second suspension cooler
After floating cooler gas solid separation, the solid particle of cooling flows downward passes through air inlet into unheated air pipeline, unheated air
Enter after into unheated air pipeline in the 3rd suspension cooler, solid particle is with rising unheated air pipeline simultaneously into the
After three suspension coolers carry out gas solid separation, when the lime solids particle in the 3rd suspension cooler is cooled to less than 100 DEG C
Flow downward, lime bin is entered by the blanking pipe of lower mouth.
Beneficial effect：The present invention is filled using oil shale ground slag as raw material using the part of existing predecomposition clinker line
Standby and facility, existing predecomposition clinker line is improved as lime line, it is necessary to be suspended in precalcining system bottom increase lime cold
But system, it is possible to qualified lime is produced, improves utilization rate of equipment and installations, increases Business Economic Benefit, can turn waste into wealth,
And can realizes solid waste zero-emission, environmental protection.
Brief description of the drawings
Fig. 1 is：General assembly structural representation.
In Fig. 1：C1 suspended preheaters 1, C2 suspended preheaters 2, C3 suspended preheaters 3, C4 suspended preheaters 4, C5 gas-solids
Separator 5, dore furnace 6, the first suspension cooler 7, the second suspension cooler 8, the 3rd suspension cooler 9, spout 10, sub-material
Valve 11, burner of decomposition furnace 12, conditioning Tower 13, kiln tail high-temperature blower 14, kiln tail dust-precipitator 15, kiln tail blower fan 16, kiln tail chimney
17th, kiln tail 18 is turned round.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
The side of conditioning Tower 13 sets revolution kiln tail 18, and the top of revolution kiln tail 18 sets dore furnace 6；The opposite side of conditioning Tower 13 is set
Kiln tail chimney 17 is put, kiln tail high-temperature blower 14 and kiln tail dust-precipitator 15 and kiln are set gradually between conditioning Tower 13 and kiln tail chimney 17
A tail wind machine 16, the bottom of conditioning Tower 13 and kiln tail high-temperature blower 14 and kiln tail dust-precipitator 15 and kiln tail blower fan 16 and kiln tail chimney 17 it
Between serial pipe is set；15 times mouths of kiln tail dust-precipitator set lime conveyance conduit, and the lime conveyance conduit port of export sets lime bin；
The top of dore furnace 6 sets C5 gas-solid separators 5, C4 suspended preheaters 4, the hot gas flow tube of the bottom of dore furnace 6 respectively
Burner of decomposition furnace 12 is set above road junction；Tremie pipe is set between 4 times mouths of C4 suspended preheaters and the bottom side of dore furnace 6
Road；Set between the top side suitable for reading with C5 gas-solid separators 5 of dore furnace 6 and rise heat of mixing airflow line, C5 gas-solid separators 5
Set between the top side suitable for reading with C4 suspended preheaters 4 and rise heat of mixing airflow line, the lower section of C5 gas-solid separators 5, which is set, to be divided
Expect valve 11；
The top of C5 gas-solid separators 5 sets C3 suspended preheaters 3, the top side of C3 suspended preheaters 3 and C4 suspension preheatings
Set between device 4 is suitable for reading and rise heat of mixing airflow line；3 times mouths of C3 suspended preheaters and the rising of the upper end of C5 gas-solid separators 5
Blanking pipe is set between heat of mixing airflow line, and the side of C3 suspended preheaters 3 sets C2 suspended preheaters 2, C3 suspension preheatings
Set between the side suitable for reading with C2 suspended preheaters 2 of device 3 and rise heat of mixing airflow line, 2 times mouths of C2 suspended preheaters hang with C4
Blanking pipe is set between the rising heat of mixing airflow line of the floating upper end of preheater 4；
The top of C3 suspended preheaters 3 sets C1 suspended preheaters 1, the side of C1 suspended preheaters 1 with C2 suspended preheaters 2
Set between mouthful and rise heat of mixing airflow line, risen heat of mixing airflow line stage casing and spout 10, C1 suspended preheaters 1 are set
Blanking pipe is set between the rising heat of mixing airflow line of lower mouth and C3 suspended preheaters 3 upper end, and C1 suspended preheaters 1 are suitable for reading
With conditioning Tower 13 it is suitable for reading between exhaust output tube road is set；
The side of dore furnace 6 sets gradually the first suspension cooler 7, the second suspension cooler 8, the 3rd suspension cooler 9, point
Solve 6 time mouths of stove and the first suspension cooler 7 it is suitable for reading between thermal current pipeline, the top of the 3rd suspension cooler 9 setting first are set
Suspension cooler 7, the side of the 3rd suspension cooler 9 set the second suspension cooler 8, the side of the first suspension cooler 7 and second
Set between suspension cooler 8 is suitable for reading and rise heat of mixing airflow line, risen and set between heat of mixing airflow line and material distributing valve 11
Blanking pipe is put, is set between the first mouth of suspension cooler 7 times and the rising heat of mixing airflow line of the upper end of the 3rd suspension cooler 9
Blanking pipe is put, is set between 9 side suitable for reading with the second suspension cooler 8 of the 3rd suspension cooler and rises mixing unheated air pipe
Road, unheated air pipeline bottom set unheated air air inlet, the second mouth of suspension cooler 8 times and the 3rd suspension cooler 9 one
Blanking pipe is set between the rising mixing unheated air pipeline of side, and the 3rd mouth of suspension cooler 9 times sets blanking pipe；
During production, standby two kinds of raw materials：Coal dust is the fuel of burner of decomposition furnace 12；Granularity is less than 1 ㎜ oil shale tailings
Powder is raw material；
Start kiln tail high-temperature blower 14 and operation air-flow is produced by pipeline pump drainage, air is by the side of the 3rd suspension cooler 9
Rising mixed airflow pipeline enter the 3rd suspension cooler 9.
Embodiment 2
In pipeline after thermal current operation completely, oil shale ground slag is sent into spout 10, oil shale ground slag passes through upper
Rise heat of mixing airflow line to enter in C1 suspended preheaters 1, pass through the gas solid separation of C1 suspended preheaters 1 and the solid of preheating
Grain flows downward, and enters C2 suspended preheaters 2 by rising heat of mixing airflow line, passes through the gas solid separation of C2 suspended preheaters 2
Flowed downward with the solid particle of preheating, enter C3 suspended preheaters 3 by rising heat of mixing airflow line, suspended by C3 pre-
The hot gas solid separation of device 3 and the solid particle of preheating flow downward, and enter C4 suspended preheaters by rising heat of mixing airflow line
4, flowed downward by 600 DEG C of solid particles of the gas solid separation of C4 suspended preheaters 4 and preheating, CaCO is realized into dore furnace 63
It is decomposed into CaO and CO2, enter C5 gas-solid separators 5 by rising heat of mixing airflow line, pass through the gas-solid of C5 gas-solid separators 5
The lime solids particle of separation flows downward into suspension cooling system.
Embodiment 3
After temperature in dore furnace 6 rises to 850 DEG C~900 DEG C, C5 gas-solid separators 5, C4 suspended preheaters are passed sequentially through
4th, C3 suspended preheaters 3, C2 suspended preheaters 2, the top of C1 suspended preheaters 1, during by C1 1 tops of suspended preheater, C1
EGT in suspended preheater 1, which progressively declines, is down to 300 DEG C~350 DEG C；Then less than 200 DEG C are cooled to by conditioning Tower 13
Into kiln tail high-temperature blower 14, then pass sequentially through kiln tail dust-precipitator 15 Solid micro in waste gas is settled, kiln tail wind
Machine 16, kiln tail chimney 17 are discharged after purifying, and the pulverized limestone that kiln tail dust-precipitator 15 is isolated enters lime bin by pipeline.
Embodiment 4
Lime solids particle enters first by the material distributing valve 11 and rising mixed airflow pipeline of the bottom of C5 gas-solid separators 5
In suspension cooler 7, the suspension thermal current in the first suspension cooler 7 is entered in dore furnace 6 by thermal current pipeline；First is outstanding
Mixed airflow in floating cooler 7 is flowed downward into the 3rd suspension cooler by the solid particle after gas solid separation and cooling
In 9；
Meanwhile the 3rd rising mixed airflow pipeline in suspension cooler 9 enters the second suspension cooler 8, pass through second
After the gas solid separation of suspension cooler 8, the solid particle of cooling flows downward passes through air intake into unheated air pipeline, unheated air
Mouth enters in the 3rd suspension cooler 9 after entering unheated air pipeline, and solid particle enters simultaneously with rising unheated air pipeline
After entering the 3rd suspension cooler 9 progress gas solid separation, the lime solids particle in the 3rd suspension cooler 9 is cooled to 100 DEG C
Flowed downward when following, lime bin is entered by the blanking pipe of lower mouth.
Claims (4)
1. a kind of production technology of oil shale ground slag suspension lime kiln, described oil shale ground slag suspension lime kiln, be by：
C1 suspended preheaters (1), C2 suspended preheaters (2), C3 suspended preheaters (3), C4 suspended preheaters (4), C5 gas-solid separators
(5), dore furnace (6), the first suspension cooler (7), the second suspension cooler (8), the 3rd suspension cooler (9), spout
(10), material distributing valve (11), burner of decomposition furnace (12), conditioning Tower (13), kiln tail high-temperature blower (14), kiln tail dust-precipitator (15),
Kiln tail blower fan (16), kiln tail chimney (17), revolution kiln tail (18) are formed；It is characterized in that：Conditioning Tower (13) side sets revolution
Kiln tail (18), revolution kiln tail (18) top set dore furnace (6)；Conditioning Tower (13) opposite side sets kiln tail chimney (17), humidification
Kiln tail high-temperature blower (14) and kiln tail dust-precipitator (15) and kiln tail blower fan are set gradually between tower (13) and kiln tail chimney (17)
(16), conditioning Tower (13) bottom and kiln tail high-temperature blower (14) and kiln tail dust-precipitator (15) and kiln tail blower fan (16) and kiln tail chimney
(17) serial pipe is set between；Mouth sets lime conveyance conduit under kiln tail dust-precipitator (15), and the lime conveyance conduit port of export is set
Put lime bin；
C5 gas-solid separators (5), C4 suspended preheaters (4), the hot gas of dore furnace (6) bottom are set respectively above dore furnace (6)
Burner of decomposition furnace (12) is set above flow tube road junction；Set under C4 suspended preheaters (4) between mouth and dore furnace (6) bottom side
Put blanking pipe；Suitable for reading set between C5 gas-solid separators (5) top side of dore furnace (6) rises heat of mixing airflow line,
Suitable for reading set between C4 suspended preheaters (4) top side of C5 gas-solid separators (5) rises heat of mixing airflow line, C5 gas-solids
Material distributing valve (11) is set below separator (5)；
C3 suspended preheaters (3) are set above C5 gas-solid separators (5), and C3 suspended preheaters (3) top side suspends pre- with C4
Set between hot device (4) is suitable for reading and rise heat of mixing airflow line；Under C3 suspended preheaters (3) on mouth and C5 gas-solid separators (5)
Blanking pipe is set between the rising heat of mixing airflow line at end, and C3 suspended preheaters (3) side sets C2 suspended preheaters
(2), suitable for reading set between C2 suspended preheaters (2) side of C3 suspended preheaters (3) rises heat of mixing airflow line, and C2 suspends
Blanking pipe is set between mouth and the rising heat of mixing airflow line of C4 suspended preheaters (4) upper end under preheater (2)；
C1 suspended preheaters (1), C1 suspended preheaters (1) side and C2 suspended preheaters are set above C3 suspended preheaters (3)
(2) set between suitable for reading and rise heat of mixing airflow line, risen heat of mixing airflow line stage casing and spout (10) is set, C1 suspends
Blanking pipe is set under preheater (1) between mouth and the rising heat of mixing airflow line of C3 suspended preheaters (3) upper end, and C1 suspends
Preheater (1) it is suitable for reading it is suitable for reading with conditioning Tower (13) between exhaust output tube road is set；
Dore furnace (6) side sets gradually the first suspension cooler (7), the second suspension cooler (8), the 3rd suspension cooler
(9) thermal current pipeline, the 3rd suspension cooler (9) are set between, mouth and the first suspension cooler (7) are suitable for reading under dore furnace (6)
Top sets the first suspension cooler (7), and the 3rd suspension cooler (9) side sets the second suspension cooler (8), and first suspends
Set between cooler (7) side and the second suspension cooler (8) are suitable for reading and rise heat of mixing airflow line, rise mixing thermal current
Blanking pipe is set between pipeline and material distributing valve (11), mouth and the 3rd suspension cooler (9) upper end under the first suspension cooler (7)
Rising heat of mixing airflow line between blanking pipe is set, the 3rd suspension cooler (9) is suitable for reading with the second suspension cooler (8)
Set between side and rise mixing unheated air pipeline, unheated air pipeline bottom sets unheated air air inlet, and second suspends
Blanking pipe is set between mouth and the rising mixing unheated air pipeline of the 3rd suspension cooler (9) side under cooler (8), the
Mouth sets blanking pipe under three suspension coolers (9)；
During production, standby two kinds of raw materials：Coal dust is the fuel of burner of decomposition furnace (12)；Granularity is less than 1 ㎜ oil shale ground slag
For raw material；
Start kiln tail high-temperature blower (14) and operation air-flow is produced by pipeline pump drainage, air is by the 3rd suspension cooler (9) side
Rising mixed airflow pipeline enter the 3rd suspension cooler (9).
A kind of 2. production technology of oil shale ground slag suspension lime kiln according to claim 1, it is characterised in that：Pipeline
After the operation completely of middle thermal current, oil shale ground slag is sent into spout (10), oil shale ground slag mixes hot gas by rising
Flow tube road enters in C1 suspended preheaters (1), and the solid particle by C1 suspended preheaters (1) gas solid separation and preheating is downward
Flowing, enter C2 suspended preheaters (2) by rising heat of mixing airflow line, by C2 suspended preheaters (2) gas solid separation with
The solid particle of preheating flows downward, and enters C3 suspended preheaters (3) by rising heat of mixing airflow line, is suspended by C3 pre-
Hot device (3) gas solid separation and the solid particle of preheating flow downward, and enter C4 suspension preheatings by rising heat of mixing airflow line
Device (4), flowed downward by 600 DEG C of solid particles of C4 suspended preheaters (4) gas solid separation and preheating, into dore furnace (6)
Realize CaCO3It is decomposed into CaO and CO2, enter C5 gas-solid separators (5) by rising heat of mixing airflow line, pass through C5 gas-solids point
Lime solids particle from device (5) gas solid separation flows downward into suspension cooling system.
A kind of 3. production technology of oil shale ground slag suspension lime kiln according to claim 1, it is characterised in that：Decompose
After temperature in stove (6) rises to 850 DEG C~900 DEG C, pass sequentially through C5 gas-solid separators (5), C4 suspended preheaters (4), C3 and hang
Floating preheater (3), C2 suspended preheaters (2), the top of C1 suspended preheaters (1), during by C1 suspended preheaters (1) top,
EGT in C1 suspended preheaters (1), which progressively declines, is down to 300 DEG C~350 DEG C；Then 200 are cooled to by conditioning Tower (13)
Enter kiln tail high-temperature blower (14) below DEG C, then pass sequentially through kiln tail dust-precipitator (15) and the Solid micro in waste gas is sunk
Discharged after drop, the purification of kiln tail blower fan (16), kiln tail chimney (17), the pulverized limestone that kiln tail dust-precipitator (15) is isolated is defeated by pipeline
It is fed into lime bin.
A kind of 4. production technology of oil shale ground slag suspension lime kiln according to claim 1, it is characterised in that：Lime
Solid particle enters the first suspension by the material distributing valve (11) and rising mixed airflow pipeline of C5 gas-solid separators (5) bottom and cooled down
In device (7), the suspension thermal current in the first suspension cooler (7) is entered in dore furnace (6) by thermal current pipeline；First suspends
Mixed airflow in cooler (7) is flowed downward into the 3rd suspension cooler by the solid particle after gas solid separation and cooling
(9) in；
Meanwhile the 3rd rising mixed airflow pipeline in suspension cooler (9) enters the second suspension cooler (8), pass through second
After suspension cooler (8) gas solid separation, the solid particle of cooling flows downward into unheated air pipeline, and unheated air is by entering
Air port enters in the 3rd suspension cooler (9) after entering unheated air pipeline, and solid particle is same with unheated air pipeline is risen
When enter the 3rd suspension cooler (9) carry out gas solid separation after, the lime solids particle in the 3rd suspension cooler (9) is cooled
Flowed downward during to less than 100 DEG C, lime bin is entered by the blanking pipe of lower mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854065.1A CN106316167B (en) | 2016-09-27 | 2016-09-27 | A kind of production technology of oil shale ground slag suspension lime kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854065.1A CN106316167B (en) | 2016-09-27 | 2016-09-27 | A kind of production technology of oil shale ground slag suspension lime kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106316167A CN106316167A (en) | 2017-01-11 |
| CN106316167B true CN106316167B (en) | 2017-12-22 |
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| CN201610854065.1A Active CN106316167B (en) | 2016-09-27 | 2016-09-27 | A kind of production technology of oil shale ground slag suspension lime kiln |
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| CN101143765A (en) * | 2007-08-20 | 2008-03-19 | 关范 | Method for generating power and producing cement clinker from oil shale slag and combustible gas |
| CN102491701A (en) * | 2011-12-20 | 2012-06-13 | 抚顺矿业集团有限责任公司 | Method for preparing cement clinker by using oil shale waste residues |
| CN105347704A (en) * | 2015-12-03 | 2016-02-24 | 洛阳建材建筑设计研究院有限公司 | Production method of oil shale tailings particle suspension limekiln |
| CN205170661U (en) * | 2015-12-03 | 2016-04-20 | 洛阳建材建筑设计研究院有限公司 | Oil shale tailings particle suspension limekiln |
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| CN101143765A (en) * | 2007-08-20 | 2008-03-19 | 关范 | Method for generating power and producing cement clinker from oil shale slag and combustible gas |
| CN102491701A (en) * | 2011-12-20 | 2012-06-13 | 抚顺矿业集团有限责任公司 | Method for preparing cement clinker by using oil shale waste residues |
| CN105347704A (en) * | 2015-12-03 | 2016-02-24 | 洛阳建材建筑设计研究院有限公司 | Production method of oil shale tailings particle suspension limekiln |
| CN205170661U (en) * | 2015-12-03 | 2016-04-20 | 洛阳建材建筑设计研究院有限公司 | Oil shale tailings particle suspension limekiln |
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