CN208779957U - Utilize rotary kiln production calcined magnesia pre- thermal decomposer outside multistage material kiln - Google Patents
Utilize rotary kiln production calcined magnesia pre- thermal decomposer outside multistage material kiln Download PDFInfo
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- CN208779957U CN208779957U CN201821218334.6U CN201821218334U CN208779957U CN 208779957 U CN208779957 U CN 208779957U CN 201821218334 U CN201821218334 U CN 201821218334U CN 208779957 U CN208779957 U CN 208779957U
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Abstract
Rotary kiln production calcined magnesia pre- thermal decomposer outside multistage material kiln is utilized the utility model relates to a kind of, including rotary kiln, the feed end of rotary kiln is connected to the air inlet on pre- one top of hot cyclone separator by induced duct one, the discharge port of pre- one bottom of hot cyclone separator is connected to the feed end of rotary kiln by feeder pipe one, pre- hot cyclone separator two is provided at the oblique upper position of pre- hot cyclone separator one, the discharge port of pre- two bottom of hot cyclone separator is connected to induced duct one by feeder pipe two, the air inlet on pre- two top of hot cyclone separator is connected to the gas outlet at pre- one top of hot cyclone separator by induced duct two, the gas outlet at pre- two top of hot cyclone separator is connected to deduster by dedusting induced duct, spout is provided on induced duct on the pre- hot cyclone separator of top.The utility model uses most six grades of heat recovery and utilization structure, improves calcination efficiency, has saved the energy, reduces material and heat waste.
Description
Technical field
Calcined magnesia pre- thermal decomposer outside multistage material kiln is produced using rotary kiln the utility model relates to a kind of,
In particular to the manufacturing calciner plant of a kind of magnesia, including magnesium hydroxide, magnesite powder, hydromagnesite miberal powder, magnesium carbonate
Equal raw materials calcine production magnesium oxide product using the present apparatus.
Background technique
Rotary kiln refers to rotary calcining kiln, belongs to building equipment class.Rotary kiln by processing material difference can be divided into cement kiln,
Chemical metallurgy kiln and limekiln.Cement kiln is mainly used for calcination of cement clinker, divides dry production cement kiln and wet production cement
Kiln two major classes.Chemical metallurgy kiln is then mainly used for the poor iron ore magnetic roasting of metallurgy industry steel plant；Chromium, josephinite oxidizing roasting；
Refractory factory roasts high-aluminium vanadine mine and aluminium manufacturer roasts clinker, aluminium hydroxide；Chemical plant roasts the classes such as chrome ore and chromite ore fine
Mineral.Limekiln (i.e. active lime kiln) is used to roast the active lime and light dolomite of steel plant, ferroalloy works.
When carrying out calcining production magnesia using this external-burning rotary kiln, need that powder will be contained in kiln by blower
The gas carrying-off of dirt, and emptying is dusted by deduster.But this temperature of flue gas in kiln is high up to 800 DEG C or so,
It cannot directly enter sack cleaner filtering emptying.In order to reduce temperature, a large amount of cold wind are incorporated generally by air register
Forced cooling can result in mass energy in this way and be lost waste and increase very big deduster area, and filtering cost is very high.
Utility model content
According to the above-mentioned deficiencies in the prior art, being solved technical problem to be solved by the utility model is: providing one kind
Drawbacks described above, by the multistage pre- thermal decomposer of setting, reduces material and being produced using rotary kiln for heat waste is calcined
Magnesia pre- thermal decomposer outside multistage material kiln.
The technical scheme adopted by the utility model to solve the technical problem is as follows: being used using rotary kiln production calcined magnesia
Pre- thermal decomposer includes rotary kiln outside multistage material kiln, and the feed end of rotary kiln is connected to preheating whirlwind point by induced duct one
Air inlet from one top of device, the discharge port of pre- one bottom of hot cyclone separator are connected to the charging of rotary kiln by feeder pipe one
It holds, is provided with pre- hot cyclone separator two, pre- two bottom of hot cyclone separator at the oblique upper position of pre- hot cyclone separator one
Discharge port induced duct one is connected to by feeder pipe two, the air inlet on pre- two top of hot cyclone separator is connected by induced duct two
It is connected to the gas outlet at pre- one top of hot cyclone separator, the gas outlet at pre- two top of hot cyclone separator is connected by dedusting induced duct
It is connected to deduster, is provided with spout on the induced duct on the pre- hot cyclone separator of top.
Preheating whirlwind point is additionally provided between the gas outlet and dedusting induced duct at two top of pre- hot cyclone separator
From device three, pre- hot cyclone separator three is located at the oblique upper position of pre- hot cyclone separator two, pre- three bottom of hot cyclone separator
The discharge port in portion is connected to induced duct two by feeder pipe three, and the air inlet on pre- three top of hot cyclone separator passes through induced duct three
It is connected to the gas outlet at pre- two top of hot cyclone separator, the gas outlet at pre- three top of hot cyclone separator passes through dedusting induced duct
It is connected to deduster.Using three-level heat recovery and utilization structure, heat further progress is recycled.
Preheating whirlwind point is additionally provided between the gas outlet and dedusting induced duct at three top of pre- hot cyclone separator
From device four, pre- hot cyclone separator four is located at the oblique upper position of pre- hot cyclone separator three, pre- four bottom of hot cyclone separator
The discharge port in portion is connected to induced duct three by feeder pipe four, and the air inlet on pre- four top of hot cyclone separator passes through induced duct four
It is connected to the gas outlet at pre- three top of hot cyclone separator, the gas outlet at pre- four top of hot cyclone separator passes through dedusting induced duct
It is connected to deduster.Using level Four heat recovery and utilization structure, heat further progress is recycled.
Preheating whirlwind point is additionally provided between the gas outlet and dedusting induced duct at four top of pre- hot cyclone separator
From device five, pre- hot cyclone separator five is located at the oblique upper position of pre- hot cyclone separator four, pre- five bottom of hot cyclone separator
The discharge port in portion is connected to induced duct four by feeder pipe five, and the air inlet on pre- five top of hot cyclone separator passes through induced duct five
It is connected to the gas outlet at pre- four top of hot cyclone separator, the gas outlet at pre- five top of hot cyclone separator passes through dedusting induced duct
It is connected to deduster.Using Pyatyi heat recovery and utilization structure, heat further progress is recycled.
Preheating whirlwind point is additionally provided between the gas outlet and dedusting induced duct at five top of pre- hot cyclone separator
From device six, pre- hot cyclone separator six is located at the oblique upper position of pre- hot cyclone separator five, pre- six bottom of hot cyclone separator
The discharge port in portion is connected to induced duct five by feeder pipe six, and the air inlet on pre- six top of hot cyclone separator passes through induced duct six
It is connected to the gas outlet at pre- five top of hot cyclone separator, the gas outlet at pre- six top of hot cyclone separator passes through dedusting induced duct
It is connected to deduster.Using six grades of heat recovery and utilization structures, heat further progress is recycled.
The spout is at the room temperature material investment of initial stage, and the feeding that feeds intake proposes material feeding using elevator or utilizes
Roots blower feeds material pneumatic conveying.
The deduster is preferably sack cleaner.
Cyclone separator is provided between the dedusting induced duct and deduster, dedusting induced duct is connected to cyclonic separation
The air inlet on device top, the gas outlet at the top of cyclone separator are connected to deduster, the discharge port connection of cyclone separator bottom
To feeder pipe one.
Afterbody preheating device separation after gas be still mingled with a small amount of material, gas after dedusting induced duct,
Into in cyclone separator, the gas after separation enters deduster and is dusted, and the material after separation enters in feeder pipe one.
The deduster is connected to chimney after air-introduced machine.Air-introduced machine plays the role of air inducing, promotes whole gas stream
To.
Beneficial effect possessed by the utility model is: the utility model uses most six grades of heat recovery and utilization knot
Structure can carry out maximized heat recovery and utilization to the wind drawn from rotary kiln, for the preheating and decomposition to material,
The heat of rotary kiln generation is taken full advantage of, and multistage recycling can be carried out to the material being mingled in the wind of extraction, is improved
Calcination efficiency has saved the energy, reduces material and heat waste.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model is embodiment 1；
Fig. 2 is the structural schematic diagram that the utility model is embodiment 2；
Fig. 3 is the structural schematic diagram that the utility model is embodiment 3；
Fig. 4 is the structural schematic diagram that the utility model is embodiment 4；
Fig. 5 is the structural schematic diagram that the utility model is embodiment 5；
Fig. 6 is the structural schematic diagram that the utility model is embodiment 6.
In figure: 1, rotary kiln；2, induced duct one；3, pre- hot cyclone separator one；4, feeder pipe one；5, cyclonic separation is preheated
Device two；6, feeder pipe two；7, induced duct two；8, dedusting induced duct；9, deduster；10, pre- hot cyclone separator three；11, blanking
Pipe three；12, induced duct three；13, pre- hot cyclone separator four；14, feeder pipe four；15, induced duct four；16, cyclonic separation is preheated
Device five；17, feeder pipe five；18, induced duct five；19, pre- hot cyclone separator six；20, feeder pipe six；21, induced duct six；22,
Spout；23, cyclone separator；24, air-introduced machine；25, chimney.
Specific embodiment
The embodiments of the present invention are described further with reference to the accompanying drawing:
Embodiment 1:
As shown in Figure 1, including revolution using rotary kiln production calcined magnesia pre- thermal decomposer outside multistage material kiln
Kiln 1, the feed end of rotary kiln 1 are connected to the air inlet on pre- one 3 top of hot cyclone separator by induced duct 1, preheat whirlwind
The discharge port of one 3 bottom of separator is connected to the feed end of rotary kiln 1 by feeder pipe 1, pre- hot cyclone separator 1 it is oblique
Pre- hot cyclone separator 25 is provided at top position, the discharge port of pre- 25 bottom of hot cyclone separator passes through feeder pipe 26
It is connected to induced duct 1, the air inlet on pre- 25 top of hot cyclone separator is connected to preheating cyclonic separation by induced duct 27
The gas outlet of the gas outlet at one 3 top of device, pre- 25 top of hot cyclone separator is connected to deduster 9 by dedusting induced duct 8,
Spout 22 is provided on induced duct 27, deduster 9 is sack cleaner.
Working principle are as follows:
In use, starting kiln first, opening air-introduced machine and light a fire, when system reaches certain temperature, it is used for
Produce magnesia raw material elevator mention material feeding or using roots blower by material pneumatic conveying feed in the way of, from spout
22 are added, and preheating whirlwind point is entered into induced duct 27, under the action of material is slightly suspended in air inducing in induced duct 27
From being preheated in device 25.Material after the pre- thermal release of pre- hot cyclone separator 25 enters induced duct after feeder pipe 26
In one 2, enters further pre- thermal release in pre- hot cyclone separator 1 through induced duct 1 after, then pass through feeder pipe 1
Into in rotary kiln 1, the gas after the separation of pre- hot cyclone separator 25 enters deduster 9 after dedusting induced duct 8 to be carried out
Dedusting discharge.In above process, gas temperature of the gas temperature in induced duct 1 up to 800 DEG C or so, in induced duct 27
Up to 500 DEG C or so, material has a resuspension procedure in induced duct 1 and induced duct 27, and high-temperature gas can be outstanding by this
Floating process and pre- hot cyclone separator are preheated and are decomposed to material, and calcination efficiency can be improved.
Embodiment 2:
As shown in Fig. 2, the present embodiment and the difference of embodiment 1 are, the gas outlet at pre- 25 top of hot cyclone separator
Pre- hot cyclone separator 3 10 is additionally provided between dedusting induced duct 8, pre- hot cyclone separator 3 10 is located at preheating whirlwind point
At oblique upper position from device 25, the discharge port of pre- 3 10 bottom of hot cyclone separator is connected to air inducing by feeder pipe 3 11
The air inlet of pipe 27, pre- 3 10 top of hot cyclone separator is connected to pre- 25 top of hot cyclone separator by induced duct 3 12
Gas outlet, the gas outlet at 3 10 top of pre- hot cyclone separator is connected to deduster 9, induced duct three by dedusting induced duct 8
Spout 22 is provided on 12.
Material enters in induced duct 3 12 from spout 22, and working principle increases preheating cyclonic separation with embodiment 1
Device 3 10 uses three-level heat recovery and utilization structure, recycles to heat further progress.
Embodiment 3:
As shown in figure 3, the present embodiment and the difference of embodiment 2 are, the outlet at pre- 3 10 top of hot cyclone separator
Pre- hot cyclone separator 4 13 is additionally provided between mouth and dedusting induced duct 8, pre- hot cyclone separator 4 13 is located at preheating whirlwind
At the oblique upper position of separator 3 10, the discharge port of pre- 4 13 bottom of hot cyclone separator is connected to by feeder pipe 4 14 to be drawn
The air inlet of air hose 3 12, pre- 4 13 top of hot cyclone separator is connected to pre- hot cyclone separator 3 10 by induced duct 4 15
The gas outlet of the gas outlet at top, pre- 4 13 top of hot cyclone separator is connected to deduster 9, air inducing by dedusting induced duct 8
Spout 22 is provided on pipe 4 15.
Material enters in induced duct 4 15 from spout 22, and working principle increases preheating cyclonic separation with embodiment 1
Device 4 13 uses level Four heat recovery and utilization structure, recycles to heat further progress.
Embodiment 4:
As shown in figure 4, the present embodiment and the difference of embodiment 3 are, the outlet at pre- 4 13 top of hot cyclone separator
Pre- hot cyclone separator 5 16 is additionally provided between mouth and dedusting induced duct 8, pre- hot cyclone separator 5 16 is located at preheating whirlwind
At the oblique upper position of separator 4 13, the discharge port of pre- 5 16 bottom of hot cyclone separator is connected to by feeder pipe 5 17 to be drawn
The air inlet of air hose 4 15, pre- 5 16 top of hot cyclone separator is connected to pre- hot cyclone separator 4 13 by induced duct 5 18
The gas outlet of the gas outlet at top, pre- 5 16 top of hot cyclone separator is connected to deduster 9, air inducing by dedusting induced duct 8
Spout 22 is provided on pipe 5 18.
Material enters in induced duct 5 18 from spout 22, and working principle increases preheating cyclonic separation with embodiment 1
Device 5 16 uses Pyatyi heat recovery and utilization structure, recycles to heat further progress.
Embodiment 5:
As shown in figure 5, the present embodiment and the difference of embodiment 4 are, the outlet at pre- 5 16 top of hot cyclone separator
Pre- hot cyclone separator 6 19 is additionally provided between mouth and dedusting induced duct 8, pre- hot cyclone separator 6 19 is located at preheating whirlwind
At the oblique upper position of separator 5 16, the discharge port of pre- 6 19 bottom of hot cyclone separator is connected to by feeder pipe 6 20 to be drawn
The air inlet of air hose 5 18, pre- 6 19 top of hot cyclone separator is connected to pre- hot cyclone separator 5 16 by induced duct 6 21
The gas outlet of the gas outlet at top, pre- 6 19 top of hot cyclone separator is connected to deduster 9, air inducing by dedusting induced duct 8
Spout 22 is provided on pipe 6 21.
Material enters in induced duct 6 21 from spout 22, and working principle increases preheating cyclonic separation with embodiment 1
Device 6 19 uses six grades of heat recovery and utilization structures, recycles to heat further progress.
Embodiment 6:
As shown in fig. 6, the present embodiment and the difference of embodiment 1 are to be arranged between dedusting induced duct 8 and deduster 9
There is cyclone separator 23, dedusting induced duct 8 is connected to the air inlet on 23 top of cyclone separator, and 23 top of cyclone separator goes out
Port is connected to deduster 9, and the discharge port of 23 bottom of cyclone separator is connected to feeder pipe 1, and deduster 9 is after air-introduced machine 24
It is connected to chimney 25.
For working principle with embodiment 1, the gas after the separation of afterbody preheating device is still mingled with a small amount of material, gas
Body is after dedusting induced duct 8, and into cyclone separator 23, the gas after separation enters deduster 9 and is dusted, and leads to after dedusting
The discharge of chimney 25 is crossed, air-introduced machine 24 plays the role of air inducing；Material after separation enters in feeder pipe 1.
Claims (9)
1. a kind of produce calcined magnesia pre- thermal decomposer outside multistage material kiln, including rotary kiln (1) using rotary kiln,
Be characterized in that: the feed end of rotary kiln (1) is connected to the air inlet on pre- hot cyclone separator one (3) top by induced duct one (2)
Mouthful, the discharge port of pre- hot cyclone separator one (3) bottom is connected to the feed end of rotary kiln (1) by feeder pipe one (4), preheating
Pre- hot cyclone separator two (5), pre- hot cyclone separator two (5) bottom are provided at the oblique upper position of cyclone separator one (3)
The discharge port in portion is connected to induced duct one (2) by feeder pipe two (6), and the air inlet on pre- hot cyclone separator two (5) top is logical
The gas outlet that induced duct two (7) is connected at the top of pre- hot cyclone separator one (3) is crossed, at the top of pre- hot cyclone separator two (5)
Gas outlet is connected to deduster (9) by dedusting induced duct (8), is arranged on the induced duct on the pre- hot cyclone separator of top
There are spout (22).
2. a kind of rotary kiln production calcined magnesia thermal decomposition dress pre- outside multistage material kiln is utilized according to claim 1
It sets, it is characterised in that: also set up between the gas outlet at the top of the pre- hot cyclone separator two (5) and dedusting induced duct (8)
There is pre- hot cyclone separator three (10), pre- hot cyclone separator three (10) is located at the oblique upper position of pre- hot cyclone separator two (5)
Place is set, the discharge port of pre- hot cyclone separator three (10) bottom is connected to induced duct two (7), preheating rotation by feeder pipe three (11)
The air inlet on wind separator three (10) top is connected to the outlet at the top of pre- hot cyclone separator two (5) by induced duct three (12)
Mouthful, the gas outlet at the top of pre- hot cyclone separator three (10) is connected to deduster (9) by dedusting induced duct (8).
3. a kind of rotary kiln production calcined magnesia thermal decomposition dress pre- outside multistage material kiln is utilized according to claim 2
It sets, it is characterised in that: also set up between the gas outlet at the top of the pre- hot cyclone separator three (10) and dedusting induced duct (8)
There is pre- hot cyclone separator four (13), pre- hot cyclone separator four (13) is located at the oblique upper position of pre- hot cyclone separator three (10)
Place is set, the discharge port of pre- hot cyclone separator four (13) bottom is connected to induced duct three (12) by feeder pipe four (14), preheats
The air inlet on cyclone separator four (13) top is connected at the top of pre- hot cyclone separator three (10) by induced duct four (15)
Gas outlet, the gas outlet at the top of pre- hot cyclone separator four (13) are connected to deduster (9) by dedusting induced duct (8).
4. a kind of rotary kiln production calcined magnesia thermal decomposition dress pre- outside multistage material kiln is utilized according to claim 3
It sets, it is characterised in that: also set up between the gas outlet at the top of the pre- hot cyclone separator four (13) and dedusting induced duct (8)
There is pre- hot cyclone separator five (16), pre- hot cyclone separator five (16) is located at the oblique upper position of pre- hot cyclone separator four (13)
Place is set, the discharge port of pre- hot cyclone separator five (16) bottom is connected to induced duct four (15) by feeder pipe five (17), preheats
The air inlet on cyclone separator five (16) top is connected at the top of pre- hot cyclone separator four (13) by induced duct five (18)
Gas outlet, the gas outlet at the top of pre- hot cyclone separator five (16) are connected to deduster (9) by dedusting induced duct (8).
5. a kind of rotary kiln production calcined magnesia thermal decomposition dress pre- outside multistage material kiln is utilized according to claim 4
It sets, it is characterised in that: also set up between the gas outlet at the top of the pre- hot cyclone separator five (16) and dedusting induced duct (8)
There is pre- hot cyclone separator six (19), pre- hot cyclone separator six (19) is located at the oblique upper position of pre- hot cyclone separator five (16)
Place is set, the discharge port of pre- hot cyclone separator six (19) bottom is connected to induced duct five (18) by feeder pipe six (20), preheats
The air inlet on cyclone separator six (19) top is connected at the top of pre- hot cyclone separator five (16) by induced duct six (21)
Gas outlet, the gas outlet at the top of pre- hot cyclone separator six (19) are connected to deduster (9) by dedusting induced duct (8).
6. a kind of rotary kiln production calcined magnesia thermal decomposition dress pre- outside multistage material kiln is utilized according to claim 1
It sets, it is characterised in that: the spout (22) is at the room temperature material investment of initial stage, and the feeding that feeds intake mentions material using elevator
Feeding is fed material pneumatic conveying using roots blower.
7. a kind of rotary kiln production calcined magnesia thermal decomposition dress pre- outside multistage material kiln is utilized according to claim 1
It sets, it is characterised in that: the deduster (9) is sack cleaner.
8. a kind of described according to claim 1 or 2 or 3 or 4 or 5 utilize the multistage material kiln of rotary kiln production calcined magnesia
Outer pre- thermal decomposer, it is characterised in that: be provided with cyclone separator between the dedusting induced duct (8) and deduster (9)
(23), dedusting induced duct (8) is connected to the air inlet on cyclone separator (23) top, the gas outlet at the top of cyclone separator (23)
It is connected to deduster (9), the discharge port of cyclone separator (23) bottom is connected to feeder pipe one (4).
9. a kind of described according to claim 1 or 2 or 3 or 4 or 5 utilize the multistage material kiln of rotary kiln production calcined magnesia
Outer pre- thermal decomposer, it is characterised in that: the deduster (9) is connected to chimney (25) after air-introduced machine (24).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821218334.6U CN208779957U (en) | 2018-07-30 | 2018-07-30 | Utilize rotary kiln production calcined magnesia pre- thermal decomposer outside multistage material kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821218334.6U CN208779957U (en) | 2018-07-30 | 2018-07-30 | Utilize rotary kiln production calcined magnesia pre- thermal decomposer outside multistage material kiln |
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| CN208779957U true CN208779957U (en) | 2019-04-23 |
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| CN201821218334.6U Active CN208779957U (en) | 2018-07-30 | 2018-07-30 | Utilize rotary kiln production calcined magnesia pre- thermal decomposer outside multistage material kiln |
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