CN207973684U - A kind of preparation facilities producing aluminium oxide lime - Google Patents
A kind of preparation facilities producing aluminium oxide lime Download PDFInfo
- Publication number
- CN207973684U CN207973684U CN201820248156.5U CN201820248156U CN207973684U CN 207973684 U CN207973684 U CN 207973684U CN 201820248156 U CN201820248156 U CN 201820248156U CN 207973684 U CN207973684 U CN 207973684U
- Authority
- CN
- China
- Prior art keywords
- preheater
- cooler
- air inlet
- gas outlet
- connect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
A kind of preparation facilities producing aluminium oxide lime, belongs to inorganic non-metallic processing technique field, structure in the following way in one kind：(1) include the first preheater, the second preheater, third preheater, the first separator, roaster, the first cooler, the second cooler, the second separator, combustion furnace and third cooler；(2) include the first preheater, the second preheater, third preheater, the first separator, roaster, the first cooler and the second cooler；Each component sequentially connects, and as structure employing mode (one), combustion furnace is equipped with fuel inlet, and as structure employing mode (two), roaster is equipped with fuel inlet.The waste heat of the device of the utility model fully cascade utilization different temperatures hot gas and thermal material, device list set production capacity greatly improve, and method heat consumption is low, and resource is made to be fully used, and product has greater activity degree.
Description
Technical field：
The utility model belongs to inorganic non-metallic processing technique field, and in particular to a kind of system producing aluminium oxide lime
Standby device.
Background technology：
According to statistics, China's aluminium oxide yield in 2017 is sure to occupy the first in the world more than 66,500,000 tons.It is aoxidized by 1t is often prepared
Aluminium averagely needs 2.3t bauxite to calculate, and year needs 152,950,000 tons of bauxite, is averagely added by bauxite per ton based on 7% lime
It calculates, needs 10,710,000 tons of lime every year.
With lime, number is produced current production aluminium oxide using shaft kiln greatly absolutely, and minority is that rotary kiln produces.It is given birth to using shaft kiln
When production, list covering device production capacity is low, and lime quality low activity is poor, and the degree of automation is poor；When being produced using rotary kiln, big, energy is invested
Consumption is high, takes up a large area, is seriously polluted.It is either produced with shaft kiln or produces lime with rotary kiln, to raw limestone
Granularity requirements are quite harsh, it is desirable that limestone granularity between 20~80mm, and require have certain grain class distribution, this is just
So that the lime stone of granularity ＜ 20mm is discarded in Limestone mining field, about 35% limestone resource is not only wasted, is also needed big
Amount soil is used to store up the lime stone of this part fritter.
Therefore, it is necessary to develop a kind of environment-friendly energy-saving device, while preparing active lime, also to make full use of
Limestone resource reduces investment, improves Business Economic Benefit.
Utility model content：
The purpose of the utility model is to overcome above-mentioned the shortcomings of the prior art, provide a kind of production aluminium oxide lime
Preparation facilities.
To achieve the above object, the utility model uses following technical scheme：
A kind of preparation facilities producing aluminium oxide lime, structure in the following way in one kind：
(1) include the first preheater, the second preheater, third preheater, the first separator, roaster, the first cooling
Device, the second cooler, the second separator, combustion furnace and third cooler；
(2) include the first preheater, the second preheater, third preheater, the first separator, roaster, the first cooler
With the second cooler；
Wherein, connection type is：
The connecting pipe of the first preheater air inlet and the second preheater gas outlet be equipped with raw limestone into
Mouthful；
The first preheater air inlet is connect by pipeline with the second preheater gas outlet；
The connecting pipe of the first preheater discharge port and the second preheater air inlet and third preheater gas outlet
Connection；
The second preheater air inlet is connect by pipeline with third preheater gas outlet；
The connecting pipe of the second preheater discharge port and third preheater air inlet and the first separator gas outlet
Connection；
The third preheater air inlet is connect by pipeline with the first separator gas outlet；
The third preheater discharge port is connect by pipeline with roaster feed inlet；
The first separator air inlet is connect by pipeline with roaster gas outlet；
The connecting pipe of the first separator discharge port and the second cooler gas outlet and the first cooler air inlet
Connection；
The first cooler discharge port and surrounding air is connect with the connecting pipe of the second cooler air inlet；
As structure employing mode (one)：
The first cooler gas outlet by pipeline together with the gas outlet of third cooler with combustion furnace air inlet
Connection；
The combustion furnace gas outlet is connect by pipeline with the second separator air inlet；
The second separator gas outlet is connect by pipeline with roaster air inlet；
The connecting pipe that the second separator discharge port passes through pipeline and surrounding air and third cooler air inlet
Connection；
The combustion furnace is equipped with fuel inlet.
As structure employing mode (two)：
The first cooler gas outlet is connect by pipeline with roaster air inlet；
The roaster is equipped with fuel inlet.
The preparation facilities of the production aluminium oxide lime is done as apparatus structure employing mode (one) using coal dust
Combustion furnace fuel；As apparatus structure employing mode (two), roaster fuel is done using gaseous fuel.
Using the preparation facilities of the production aluminium oxide lime, the method for preparing production aluminium oxide lime, including
Following steps：
Step 1, it exchanges heat and detaches：
(1) raw limestone is quantified to the connecting pipe of feeding the first preheater air inlet and the second preheater gas outlet
It is interior, sufficient heat exchange is carried out with hot gas a, forms primary heat exchange raw limestone, the primary heat exchange raw limestone temperature
Degree is 350~450 DEG C；
(2) the primary heat exchange raw limestone described in is brought by hot gas in the first preheater, through the first preheater gas-solid
First separation raw limestone and dusty gas are formed after separation, the first separation raw limestone temperature is 350~450
℃；
(3) first separation raw limestone enters the connecting pipe of third preheater gas outlet and the second preheater air inlet
It is interior, sufficient heat exchange is carried out with hot gas b, secondary heat exchange material is formed and enters the progress gas-solid point of the second preheater with hot gas
From formation secondary separation material and hot gas a, the secondary heat exchange temperature of charge are 600~700 DEG C；
(4) secondary separation material enters in the connecting pipe of the first separator gas outlet and third preheater air inlet, with
Hot gas c carries out sufficient heat exchange and decomposed, and formation exchanges heat material three times, and the material that exchanges heat three times enters the with b hot gas
Three preheaters carry out gas solid separation, form separation of material and hot gas b three times, wherein：The temperature of charge of heat exchange three times is
850~900 DEG C；
Step 2, it roasts：
Separation of material enters roaster and is roasted three times, generates roasting material and roasting hot gas；Wherein, the roasting
It is 1000~1100 DEG C to burn temperature, and roasting time is 2~20s；
Step 3, cooling：
(1) roasting material enters the first separator with roasting hot gas and carries out gas solid separation, formed four separation of material and
Hot gas c；
(2) four times separation of material enter in the connecting pipe of the second cooler gas outlet and the first cooler air inlet, with
Hot-air d carries out heat exchange, forms four heat exchange materials, described four times heat exchange temperature of charge is 500~600 DEG C；
(3) four heat exchange materials described in enter the first cooler with hot-air d and carry out gas solid separation, form five separation
Material and hot-air e, five separation of material temperature are 500~600 DEG C；
(4) five times separation of material enters in the pipeline that the second cooler air inlet is connected to ambient air inlet, with preheating
Surrounding air enters the second cooler progress gas solid separation afterwards, forms six separation of material and hot-air d, six times separation of material is
To produce aluminium oxide lime, described six separation of material temperature are 200~300 DEG C；
Step 4：
(1) as apparatus structure employing mode (one), the method for the preparation production aluminium oxide lime further includes coal
Powder processing procedure, includes the following steps：
Coal dust is quantified feeding combustion furnace burning by (1-1), and the combustion product and hot coal ash of generation enter the second separator, warp
After second separator carries out gas solid separation, hot coal ash and clean combustion product are formed；
Hot coal ash described in (1-2), which enters, carries out heat in the pipeline that third cooler air inlet is connected to ambient air inlet
It exchanges, forms coal ash after heat exchange, coal ash temperature is 100~150 DEG C after the heat exchange；
Coal ash enters third cooler progress gas solid separation with the surrounding air after heat exchange after (1-3) heat exchange, and it is empty to form heat
Gas f and solid, solid are to be sold outside coal ash；
(2) it as apparatus structure employing mode (two), completes production aluminium oxide and is prepared with lime.
In the step 1 (1), raw limestone fineness is 0.1mm, attached water mass percentage≤2.0%；
In the step 1 (1), the hot gas a temperature is 600~700 DEG C, comes from the second preheater gas outlet.
In the step 1 (2), the processing mode of dusty gas is：After cogeneration or humidifying cooling, into through routine
After purified treatment, gas dust content≤10mg/Nm3Emptying.
In the step 1 (3), hot gas b temperature is 830~850 DEG C, comes from third preheater.
In the step 1 (4), hot gas c temperature is 1000~1100 DEG C, comes from the first separator.
In the step 1 (4), decomposed resolution ratio is 10~50% (mass ratioes), and the resolution ratio refers to (three
Calcium oxide quality and calcium oxide mass ratio in secondary heat exchange material in secondary heat exchange material) × 100%.
In the step 2, the roasting hot gas temperature of generation is 1000~1100 DEG C.
In the step 3 (2), hot-air d temperature is 200~300 DEG C, comes from the second cooler gas outlet.
In the step 3 (3), hot-air e temperature is 500~600 DEG C.
In the step 3 (3), as apparatus structure employing mode (one), i.e., when doing fuel using coal dust, hot-air e
It is combustion-supporting into combustion furnace；As apparatus structure employing mode (two), i.e., when doing fuel using gaseous fuel, hot-air e enters roasting
It is combustion-supporting to burn stove.
In the step 4 (1) (1-1), fineness of pulverized coal -0.088mm accounts for mass percent 88~90%.
In the step 4 (1) (1-1), the temperature of the combustion product and clean combustion product is 1200~
1500℃；
In the step 4 (1) (1-1), the clean combustion product enters roaster and carries out material roasting.
In the step 4 (1) (1-3), it is combustion-supporting that the hot-air f enters combustion furnace.
The beneficial effects of the utility model：
(1) single set production capacity of the preparation facilities of the production aluminium oxide lime of the utility model greatly improves, single to cover
Annual capacity can reach 1000kt；
(2) preparation facilities of the production aluminium oxide lime of the utility model is used, heat consumption is low, can be saved per t lime
20kg cel, it is 13.8% to reduce heat consumption；
(3) preparation facilities of the production aluminium oxide lime of the utility model makes magnesite resource be fully used,
Save limestone resource 35% or so；
(4) preparation facilities of the production aluminium oxide lime of the utility model can substantially reduce exhaust gas discharge, discharge
Dust content in stack gas≤10mg/Nm3；
(5) use activity of lime prepared by the preparation facilities of the production aluminium oxide lime of the utility model good, activity
Degree >=360.
Description of the drawings：
Fig. 1 is the preparation facilities structural schematic diagram of the production aluminium oxide lime of the utility model embodiment 1；
Fig. 2 is the preparation facilities structural schematic diagram of the production aluminium oxide lime of the utility model embodiment 3；
Wherein：The first preheaters of 1-, the second preheaters of 2-, 3- third preheaters, the first separators of 4-, 5- roasters, 6-
First cooler, the second coolers of 7-, the second separators of 8-, 9- combustion furnaces, 10- third coolers, A- raw limestones, B- contain
Dust and gas body, C- produce aluminium oxide lime, D- surrounding airs, E- fuel, F- coal ash.
Specific implementation mode：
With reference to embodiment, the utility model is described in further detail.
First, second described in following utility model embodiment, the descriptions such as third are only used for device feature differentiation, not generation
Table sequencing；Connection type includes being directly connected to, and a variety of connection types such as is indirectly connected with；
The utility model implement each specification of equipment for using for：
First preheater：Φ6070×15690mm；
Second preheater：Φ6525×16660mm；
Third preheater：Φ6840×15745mm；
First separator：Φ7050×16420mm；
Roaster：Φ7050×16420mm；
First cooler：Φ3610×7810mm；
Second cooler：Φ3165×6770mm；
Second separator：Φ7050×15420mm；
Hot-blast stove：Φ7050×11500mm；
Third cooler：Φ1100×3500mm；
What equipment was constituted used by the utility model is implemented prepares lime 400kt in device year.
Embodiment 1
A kind of preparation facilities producing aluminium oxide lime, structural schematic diagram as shown in Figure 1, include the first preheater 1,
Second preheater 2, third preheater 3, the first separator 4, roaster 5, the first cooler 6, the second cooler 7, the second separation
Device 8, combustion furnace 9 and third cooler 10；Wherein：
The connecting pipe of 2 gas outlet of first preheater, 1 air inlet and the second preheater is equipped with raw limestone
Import；
First preheater, 1 air inlet is connect by pipeline with 2 gas outlet of the second preheater；
The communicating pipe of first preheater, 1 discharge port and 2 air inlet of the second preheater and 3 gas outlet of third preheater
Road connects；
Second preheater, 2 air inlet is connect by pipeline with 3 gas outlet of third preheater；
The communicating pipe of 4 gas outlet of second preheater, 2 discharge port and 3 air inlet of third preheater and the first separator
Road connects；
3 air inlet of third preheater is connect by pipeline with 4 gas outlet of the first separator；
3 discharge port of third preheater is connect by pipeline with 5 feed inlet of roaster；
First separator, 4 air inlet is connect by pipeline with 5 gas outlet of roaster；
The communicating pipe of first separator, 4 discharge port and 7 gas outlet of the second cooler and 6 air inlet of the first cooler
Road connects；
First cooler, 6 discharge port and surrounding air is connect with the connecting pipe of 7 air inlet of the second cooler；
First cooler, 6 gas outlet by pipeline together with the gas outlet of third cooler 10 with combustion furnace 9 into
Gas port connects；
9 gas outlet of combustion furnace is connect by pipeline with the second separator air inlet；
The second separator gas outlet is connect by pipeline with 5 air inlet of roaster；
The communicating pipe that the second separator discharge port passes through pipeline and surrounding air and 10 air inlet of third cooler
Road connects；
The combustion furnace 9 is equipped with fuel inlet.
Using above-mentioned preparation facilities, the method for preparing production aluminium oxide lime includes the following steps：
Step 1, it exchanges heat and detaches：
(1) it is 0.1mm by fineness, the raw limestone A of attached water mass percentage≤2.0% quantitatively feeds first in advance
It is 600 with the temperature from 2 gas outlet of the second preheater in the connecting pipe of 2 gas outlet of 1 air inlet of hot device and the second preheater
DEG C hot gas a carries out sufficient heat exchange, forms primary heat exchange raw limestone, and temperature is 350 DEG C；
(2) once heat exchange raw limestone is brought by hot gas in the first preheater 1, through 1 gas solid separation of the first preheater
First separation raw limestone and dusty gas B are formed afterwards, and first separation raw limestone temperature is 350 DEG C, dusty gas B's
Processing mode is：After cogeneration or humidifying cooling, into after conventional purified treatment, gas dust content≤10mg/Nm3Row
It is empty；
(3) first separation raw limestone enters the connecting tube of 2 air inlet of 3 gas outlet of third preheater and the second preheater
In road, it is that 830 DEG C of hot gas b carry out sufficient heat exchange with the temperature from third preheater 3, forms secondary heat exchange material with heat
Gas enters the second preheater 2 and carries out gas solid separation, forms secondary separation material and hot gas a, secondary heat exchange temperature of charge are
600 DEG C, secondary separation temperature of charge is 600 DEG C；
(4) secondary separation material enters in the connecting pipe of 3 air inlet of 4 gas outlet of the first separator and third preheater,
It is that 1000 DEG C of hot gas c carry out sufficient heat exchange and decomposed with the temperature from the first separator 4, forms the object that exchanges heat three times
Material, resolution ratio are 10% (mass ratio), and resolution ratio is that (exchange heat calcium oxide material quality and secondary heat exchange calcium oxide material matter three times
The ratio between amount) × 100%, the material that exchanges heat three times enters third preheater 3 with hot gas and carries out gas solid separation, forms isolate three times
Material and hot gas b, the temperature of charge that exchanges heat three times is 850 DEG C, and separation of material temperature is 850 DEG C three times；
Step 2, it roasts：
Separation of material enters roaster 5 and is roasted three times, and calcination temperature is 1000 DEG C, and roasting time is 2~10s, raw
At roasting material and roasting hot gas, roasting hot gas temperature is 1000 DEG C；
Step 3, cooling：
(1) roasting material enters the first separator 4 with roasting hot gas and carries out gas solid separation, formed four separation of material and
Hot gas c, four separation of material temperature are 1000 DEG C；
(2) four times separation of material enter in the connecting pipe of 7 gas outlet of the second cooler and 6 air inlet of the first cooler,
It is that 200 DEG C of hot-air d carry out heat exchange with the temperature from 7 gas outlet of the second cooler, forms four times that temperature is 600 DEG C and change
Thermal material；
(3) four heat exchange materials enter the first cooler 6 with hot-air d and carry out gas solid separation, form five separation of material
With hot-air e, five separation of material temperature are 600 DEG C, and hot-air e temperature is 600 DEG C, combustion-supporting into combustion furnace 9；
(4) five times separation of material enters in the pipeline that 7 air inlet of the second cooler is connected to ambient air inlet, with preheating
Surrounding air D enters the second cooler 7 progress gas solid separation afterwards, forms six separation of material and hot-air d, six separation of material
Temperature is 200 DEG C, as produces aluminium oxide lime C；
Step 4：
(1) as apparatus structure employing mode (one), the method for the preparation production aluminium oxide lime further includes coal
Powder processing procedure, includes the following steps：
The coal dust for-the 0.088mm that fineness accounts for mass percent 88~90% is quantitatively fed burning by (1-1) as fuel E
Stove 9 burns, and the combustion product and hot coal ash of generation enter the second separator 8, after the second separator 8 carries out gas solid separation, shape
At hot coal ash and clean combustion product, the temperature of combustion product and clean combustion product is 1200 DEG C, clean burning production
Object enters roaster 5 and carries out material roasting；
(1-2) hot coal ash, which enters, carries out hot friendship in the pipeline that 10 air inlet of third cooler is connected to ambient air inlet
It changes, forms coal ash after the heat exchange that temperature is 100 DEG C；
Coal ash enters the progress gas solid separation of third cooler 10 after (1-3) heat exchange, forms hot-air f and solid, solid are
It is sold outside coal ash F, it is combustion-supporting that hot-air f enters combustion furnace 9.
Embodiment 2
A kind of preparation facilities producing aluminium oxide lime, structure is the same as embodiment 1.
Using above-mentioned preparation facilities, the method for preparing production aluminium oxide lime includes the following steps：
Step 1, it exchanges heat and detaches：
(1) it is 0.1mm by fineness, the raw limestone A of attached water mass percentage≤2.0% quantitatively feeds first in advance
It is 600 with the temperature from 2 gas outlet of the second preheater in the connecting pipe of 2 gas outlet of 1 air inlet of hot device and the second preheater
DEG C hot gas a carries out sufficient heat exchange, forms primary heat exchange raw limestone, and temperature is 400 DEG C；
(2) once heat exchange raw limestone is brought by hot gas in the first preheater 1, through 1 gas solid separation of the first preheater
First separation raw limestone and dusty gas B are formed afterwards, and first separation raw limestone temperature is 400 DEG C, dusty gas B's
Processing mode is：After cogeneration or humidifying cooling, into after conventional purified treatment, gas dust content≤10mg/Nm3Row
It is empty；
(3) first separation raw limestone enters the connecting tube of 2 air inlet of 3 gas outlet of third preheater and the second preheater
In road, it is that 840 DEG C of hot gas b carry out sufficient heat exchange with the temperature from third preheater 3, forms secondary heat exchange material with heat
Gas enters the second preheater 2 and carries out gas solid separation, forms secondary separation material and hot gas a, secondary heat exchange temperature of charge are
650 DEG C, secondary separation temperature of charge is 650 DEG C；
(4) secondary separation material enters in the connecting pipe of 3 air inlet of 4 gas outlet of the first separator and third preheater,
It is that 1050 DEG C of hot gas c carry out sufficient heat exchange and decomposed with the temperature from the first separator 4, forms the object that exchanges heat three times
Material, resolution ratio are 35% (mass ratio), and resolution ratio is that (exchange heat calcium oxide material quality and secondary heat exchange calcium oxide material matter three times
The ratio between amount) × 100%, the material that exchanges heat three times enters third preheater 3 with hot gas and carries out gas solid separation, forms isolate three times
Material and hot gas b, the temperature of charge that exchanges heat three times is 880 DEG C, and separation of material temperature is 880 DEG C three times；
Step 2, it roasts：
Separation of material enters roaster 5 and is roasted three times, and calcination temperature is 1050 DEG C, and roasting time is 5~15s, raw
At roasting material and roasting hot gas, roasting hot gas temperature is 1050 DEG C；
Step 3, cooling：
(1) roasting material enters the first separator 4 with roasting hot gas and carries out gas solid separation, formed four separation of material and
Hot gas c, four separation of material temperature are 1050 DEG C；
(2) four times separation of material enter in the connecting pipe of 7 gas outlet of the second cooler and 6 air inlet of the first cooler,
It is that 240 DEG C of hot-air d carry out heat exchange with the temperature from 7 gas outlet of the second cooler, forms four times that temperature is 500 DEG C and change
Thermal material；
(3) four heat exchange materials enter the first cooler 6 with hot-air d and carry out gas solid separation, form five separation of material
With hot-air e, five separation of material temperature are 500 DEG C, and hot-air e temperature is 500 DEG C, combustion-supporting into combustion furnace 9；
(4) five times separation of material enters in the pipeline that 7 air inlet of the second cooler is connected to ambient air inlet, with preheating
Surrounding air D enters the second cooler 7 progress gas solid separation afterwards, forms six separation of material and hot-air d, six separation of material
Temperature is 240 DEG C, as produces aluminium oxide lime C；
Step 4：Coal dust processing：
The coal dust for-the 0.088mm that fineness accounts for mass percent 88~90% is quantitatively fed burning by (1-1) as fuel E
Stove 9 burns, and the combustion product and hot coal ash of generation enter the second separator 8, after the second separator 8 carries out gas solid separation, shape
At hot coal ash and clean combustion product, the temperature of combustion product and clean combustion product is 1500 DEG C, clean burning production
Object enters roaster 5 and carries out material roasting；
(1-2) hot coal ash, which enters, carries out hot friendship in the pipeline that 10 air inlet of third cooler is connected to ambient air inlet
It changes, forms coal ash after the heat exchange that temperature is 150 DEG C；
Coal ash enters the progress gas solid separation of third cooler 10 after (1-3) heat exchange, forms hot-air f and solid, solid are
It is sold outside coal ash F, it is combustion-supporting that hot-air f enters combustion furnace 9.
Embodiment 3
A kind of preparation facilities producing aluminium oxide lime, structural schematic diagram as shown in Fig. 2, include the first preheater 1,
Second preheater 2, third preheater 3, the first separator 4, roaster 5, the first cooler 6 and the second cooler 7；Wherein：
The connecting pipe of 2 gas outlet of first preheater, 1 air inlet and the second preheater is equipped with raw limestone
Import；
First preheater, 1 air inlet is connect by pipeline with 2 gas outlet of the second preheater；
The communicating pipe of first preheater, 1 discharge port and 2 air inlet of the second preheater and 3 gas outlet of third preheater
Road connects；
Second preheater, 2 air inlet is connect by pipeline with 3 gas outlet of third preheater；
The communicating pipe of 4 gas outlet of second preheater, 2 discharge port and 3 air inlet of third preheater and the first separator
Road connects；
3 air inlet of third preheater is connect by pipeline with 4 gas outlet of the first separator；
3 discharge port of third preheater is connect by pipeline with 5 feed inlet of roaster；
First separator, 4 air inlet is connect by pipeline with 5 gas outlet of roaster；
The communicating pipe of first separator, 4 discharge port and 7 gas outlet of the second cooler and 6 air inlet of the first cooler
Road connects；
First cooler, 6 discharge port and surrounding air is connect with the connecting pipe of 7 air inlet of the second cooler；
First cooler, 6 gas outlet is connect by pipeline with 5 air inlet of roaster；
The roaster 5 is equipped with fuel inlet.
Using above-mentioned preparation facilities, the method for preparing production aluminium oxide lime includes the following steps：
Step 1, it exchanges heat and detaches：
(1) it is 0.1mm by fineness, the raw limestone A of attached water mass percentage≤2.0% quantitatively feeds first in advance
It is 600 with the temperature from 2 gas outlet of the second preheater in the connecting pipe of 2 gas outlet of 1 air inlet of hot device and the second preheater
DEG C hot gas a carries out sufficient heat exchange, forms primary heat exchange raw limestone, and temperature is 450 DEG C；
(2) once heat exchange raw limestone is brought by hot gas in the first preheater 1, through 1 gas solid separation of the first preheater
First separation raw limestone and dusty gas B are formed afterwards, and first separation raw limestone temperature is 450 DEG C, dusty gas B's
Processing mode is：After cogeneration or humidifying cooling, into after conventional purified treatment, gas dust content≤10mg/Nm3Row
It is empty；
(3) first separation raw limestone enters the connecting tube of 2 air inlet of 3 gas outlet of third preheater and the second preheater
In road, it is that 850 DEG C of hot gas b carry out sufficient heat exchange with the temperature from third preheater 3, forms secondary heat exchange material with heat
Gas enters the second preheater 2 and carries out gas solid separation, forms secondary separation material and hot gas a, secondary heat exchange temperature of charge are
700 DEG C, secondary separation temperature of charge is 700 DEG C；
(4) secondary separation material enters in the connecting pipe of 3 air inlet of 4 gas outlet of the first separator and third preheater,
It is that 1100 DEG C of hot gas c carry out sufficient heat exchange and decomposed with the temperature from the first separator 4, forms the object that exchanges heat three times
Material, resolution ratio are 50% (mass ratio), and resolution ratio is that (exchange heat calcium oxide material quality and secondary heat exchange calcium oxide material matter three times
The ratio between amount) × 100%, the material that exchanges heat three times enters third preheater 3 with hot gas and carries out gas solid separation, forms isolate three times
Material and hot gas b, the temperature of charge that exchanges heat three times is 900 DEG C, and separation of material temperature is 900 DEG C three times；
Step 2, it roasts：
Separation of material enters roaster 5 and is roasted three times, and fuel E is gaseous fuel, hot into being provided in roaster 5
Amount, calcination temperature are 1100 DEG C, and roasting time is 10~20s, generate roasting material and roasting hot gas, roast hot gas temperature
It is 1050 DEG C；
Step 3, cooling：
(1) roasting material enters the first separator 4 with roasting hot gas and carries out gas solid separation, formed four separation of material and
Hot gas c, four separation of material temperature are 1100 DEG C；
(2) four times separation of material enter in the connecting pipe of 7 gas outlet of the second cooler and 6 air inlet of the first cooler,
It is that 300 DEG C of hot-air d carry out heat exchange with the temperature from 7 gas outlet of the second cooler, forms four times that temperature is 600 DEG C and change
Thermal material；
(3) four heat exchange materials enter the first cooler 6 with hot-air d and carry out gas solid separation, form five separation of material
With hot-air e, five separation of material temperature are 600 DEG C, and hot-air e temperature is 600 DEG C, combustion-supporting into roaster 5；
(4) five times separation of material enters in the pipeline that 7 air inlet of the second cooler is connected to ambient air inlet, with preheating
Surrounding air D enters the second cooler 7 progress gas solid separation afterwards, forms six separation of material and hot-air d, six separation of material
Temperature is 300 DEG C, as produces aluminium oxide lime C.
Claims (4)
1. a kind of preparation facilities producing aluminium oxide lime, which is characterized in that including the first preheater, the second preheater,
Three preheaters, the first separator, roaster, the first cooler, the second cooler, the second separator, combustion furnace and third cooling
Device；
Wherein, connection type is：
The connecting pipe of the first preheater air inlet and the second preheater gas outlet is equipped with raw limestone import；
The first preheater air inlet is connect by pipeline with the second preheater gas outlet；
The first preheater discharge port and the second preheater air inlet is connect with the connecting pipe of third preheater gas outlet；
The second preheater air inlet is connect by pipeline with third preheater gas outlet；
The second preheater discharge port and third preheater air inlet is connect with the connecting pipe of the first separator gas outlet；
The third preheater air inlet is connect by pipeline with the first separator gas outlet；
The third preheater discharge port is connect by pipeline with roaster feed inlet；
The first separator air inlet is connect by pipeline with roaster gas outlet；
The first separator discharge port and the second cooler gas outlet is connect with the connecting pipe of the first cooler air inlet；
The first cooler discharge port and surrounding air is connect with the connecting pipe of the second cooler air inlet；
The first cooler gas outlet is connect together with the gas outlet of third cooler with combustion furnace air inlet by pipeline；
The combustion furnace gas outlet is connect by pipeline with the second separator air inlet；
The second separator gas outlet is connect by pipeline with roaster air inlet；
The second separator discharge port is connect by pipeline and surrounding air with the connecting pipe of third cooler air inlet.
2. the preparation facilities of production aluminium oxide lime according to claim 1, which is characterized in that on the combustion furnace
Equipped with fuel inlet.
3. a kind of preparation facilities producing aluminium oxide lime, which is characterized in that including the first preheater, the second preheater,
Three preheaters, the first separator, roaster, the first cooler and the second cooler；
Wherein, connection type is：
The connecting pipe of the first preheater air inlet and the second preheater gas outlet is equipped with raw limestone import；
The first preheater air inlet is connect by pipeline with the second preheater gas outlet；
The first preheater discharge port and the second preheater air inlet is connect with the connecting pipe of third preheater gas outlet；
The second preheater air inlet is connect by pipeline with third preheater gas outlet；
The second preheater discharge port and third preheater air inlet is connect with the connecting pipe of the first separator gas outlet；
The third preheater air inlet is connect by pipeline with the first separator gas outlet；
The third preheater discharge port is connect by pipeline with roaster feed inlet；
The first separator air inlet is connect by pipeline with roaster gas outlet；
The first separator discharge port and the second cooler gas outlet is connect with the connecting pipe of the first cooler air inlet；
The first cooler discharge port and surrounding air is connect with the connecting pipe of the second cooler air inlet；
The first cooler gas outlet is connect by pipeline with roaster air inlet.
4. the preparation facilities of production aluminium oxide lime according to claim 3, which is characterized in that on the roaster
Equipped with fuel inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820248156.5U CN207973684U (en) | 2018-02-12 | 2018-02-12 | A kind of preparation facilities producing aluminium oxide lime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820248156.5U CN207973684U (en) | 2018-02-12 | 2018-02-12 | A kind of preparation facilities producing aluminium oxide lime |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207973684U true CN207973684U (en) | 2018-10-16 |
Family
ID=63767559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820248156.5U Withdrawn - After Issue CN207973684U (en) | 2018-02-12 | 2018-02-12 | A kind of preparation facilities producing aluminium oxide lime |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207973684U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059369A (en) * | 2018-02-12 | 2018-05-22 | 沈阳鑫博工业技术股份有限公司 | A kind of preparation facilities and method for producing aluminium oxide lime |
| CN108083294A (en) * | 2018-02-12 | 2018-05-29 | 沈阳鑫博工业技术股份有限公司 | A kind of device and method that aluminium oxide and sodium oxide molybdena are extracted from red mud |
-
2018
- 2018-02-12 CN CN201820248156.5U patent/CN207973684U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059369A (en) * | 2018-02-12 | 2018-05-22 | 沈阳鑫博工业技术股份有限公司 | A kind of preparation facilities and method for producing aluminium oxide lime |
| CN108083294A (en) * | 2018-02-12 | 2018-05-29 | 沈阳鑫博工业技术股份有限公司 | A kind of device and method that aluminium oxide and sodium oxide molybdena are extracted from red mud |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104831056B (en) | A kind of preheating of fine chrome mine pelletizing and method of roasting | |
| CN106011457B (en) | A kind of refractory iron ore mountain flour magnetizing roast system and technique | |
| CN103435276B (en) | Production apparatus of active lime | |
| CN102180604B (en) | Spinning bed equipment and process for producing high-activity lime with spinning bed | |
| CN207973684U (en) | A kind of preparation facilities producing aluminium oxide lime | |
| CN102001837A (en) | Method and device for calcining materials by using low calorific value fuel | |
| CN109020265A (en) | A kind of air high temperature preheating technique raising light-calcined magnesite product high yield method | |
| CN110128040B (en) | Equipment system for preparing anhydrite powder by large-scale phosphogypsum digestion | |
| CN108585555B (en) | Industrial powder clinker homogeneous calcination preparation equipment and preparation method | |
| CN107673637A (en) | The suspension roasting device and its production technology of a kind of powdery active lime | |
| CN208829738U (en) | A kind of refractory iron ore suspending magnetization roasting-dry type anaerobic cooling system | |
| CN107285651B (en) | Active powder lime suspension calcining device | |
| CN106635111B (en) | A kind of biomass pyrolytic production liquid fuel co-producing bio charcoal system | |
| CN105347702A (en) | Cement production rotary kiln device | |
| CN210620901U (en) | Grate-shaft furnace equipment for pellet roasting | |
| CN204265644U (en) | Heat storage type lime rotary kiln | |
| CN208613051U (en) | A kind of steel slag micro mist using steel plant's waste heat flue gas selects powder system | |
| CN202089901U (en) | Rotating bed equipment | |
| CN214747299U (en) | Device for producing mineral admixture by using coal gangue | |
| CN101913787A (en) | Method for calcining and activating shale into cement admixture | |
| CN102183142B (en) | Semi-heat accumulating type rotating bed equipment and process for producing large-size high-activity lime | |
| CN211971788U (en) | Device capable of improving content of molybdenum trioxide in molybdenum roasting finished product | |
| CN203373276U (en) | Active lime production device | |
| CN211770329U (en) | System for use magnesium hydrate as raw materials production fused magnesia | |
| CN108059369A (en) | A kind of preparation facilities and method for producing aluminium oxide lime |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181016 Effective date of abandoning: 20230407 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181016 Effective date of abandoning: 20230407 |