CN209081747U - Utilize the device of the continuous stepping isolation production light calcined magnesia of electric energy - Google Patents
Utilize the device of the continuous stepping isolation production light calcined magnesia of electric energy Download PDFInfo
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- CN209081747U CN209081747U CN201821840675.7U CN201821840675U CN209081747U CN 209081747 U CN209081747 U CN 209081747U CN 201821840675 U CN201821840675 U CN 201821840675U CN 209081747 U CN209081747 U CN 209081747U
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- China
- Prior art keywords
- supply unit
- conveyer
- light calcined
- calcined magnesia
- electric energy
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- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000002955 isolation Methods 0.000 title claims abstract description 17
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 30
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 30
- 238000011084 recovery Methods 0.000 claims abstract description 25
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 20
- 239000002918 waste heat Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 5
- 230000003064 anti-oxidating effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 150000001875 compounds Chemical group 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 241000790917 Dioxys <bee> Species 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 235000011089 carbon dioxide Nutrition 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 48
- 235000014380 magnesium carbonate Nutrition 0.000 description 32
- 239000001095 magnesium carbonate Substances 0.000 description 31
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 31
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 30
- 239000012141 concentrate Substances 0.000 description 21
- 235000012245 magnesium oxide Nutrition 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000395 magnesium oxide Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 use shower furnace Chemical compound 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of device using the continuous stepping isolation production light calcined magnesia of electric energy of the utility model, the supply unit group formed including a supply unit or more than one supply unit, feed system, discharge system, carbon dioxide recovery system, in accordance and automatic control system, the supply unit is made of the conveyer with agitating function and the electric tube furnace being arranged on the conveyer outer wall with agitating function, its production method is: being heated to 400 DEG C ~ 800 DEG C for machine drum body is conveyed using electric tube furnace, the conveying in conveying machine drum body and stirring blade are rotated simultaneously, draw off material into waste heat decomposition bin and cooling system after fierce decomposition from discharge port in conveying machine drum body；50 DEG C are cooled to hereinafter, decomposing the CO of generation in production by discharging machine discharging and packaging2By carbon dioxide recovery system, in accordance recycling, it is processed into high pressure gas or " dry ice ".
Description
Technical field
The utility model relates to raw material for refractory production technical fields more particularly to a kind of utilize continuously to be walked using electric energy
Into the device of isolation production light calcined magnesia.
Background technique
Refractory material, building materials, chemical industry, environmental protection, food and animal husbandry etc. is widely applied in light calcined magnesia, is national economy weight
The basic raw material wanted.Currently, being mainly reverberatory furnace using blocky magnesite production light calcined magnesia, a reverberatory furnace is produced per year
Amount is less than 10,000 tons, and substantially based on manual operation, working condition is poor, energy consumption is high, pollution environment；After magnesite ore dressing
Concentrate powder or magnesite powder production light calcined magnesia mainly use shower furnace, although shower furnace has, yield is high, automates
The advantages that degree is good, while there is also invest the problems such as big, energy consumption is high, production is not flexible.Due to the requirement of environmental protection, produce light-burned
The equipment of magnesia uses natural gas as fuel mostly at present, is influenced by gas source, and Gas Prices fluctuation is very big, with gas
Also often there is gas-break phenomenon in peak season, influences production and operates normally, while magnesite decomposes the great amount of carbon dioxide generated
It can not recycle, pollute environment.Therefore, it under the premise of cost performance is reasonable, is produced using electric energy as clean energy resource light-burned
Magnesia is to solve the problems, such as that there are unique channels using natural gas production light calcined magnesia.
Summary of the invention
The utility model provides a kind of device using the continuous stepping isolation production light calcined magnesia of electric energy, the party
Yield, the performance of light calcined magnesia can be adjusted flexibly in method according to actual needs, while the carbon dioxide purity recycled is high, does not need
Purification.
A kind of device using the continuous stepping isolation production light calcined magnesia of electric energy of the utility model, feature exist
In supply unit group, feed system, discharge system, dioxy including a supply unit or more than one supply unit composition
Change carbon recovery system and automatic control system, the supply unit by with agitating function conveyer and setting stir having
The electric tube furnace mixed on the conveyer outer wall of function is formed, and the conveyer with agitating function is arranged in the feed system
The bottom on the left of the conveyer with agitating function is arranged in upper right side, the discharge system, and the discharge system includes
Waste heat decomposition bin with refractory fibre heat preservation, with refractory fibre heat preservation the cooling system that connect of waste heat decomposition bin and oneself
Dynamic discharging machine, carbon dioxide recovery system, in accordance are arranged in above the left side of the conveyer with agitating function.
As advanced optimizing for above scheme, the conveyer with agitating function include conveying machine drum body, into
Material mouth, exhaust outlet, discharge port, be horizontally installed on conveying machine drum body in main shaft and main shaft coolant jacket, be arranged in it is defeated on main shaft
It send and stirring blade and the spindle drive systems connecting with main shaft, the feed inlet and exhaust outlet is separately positioned on conveyer
The bottom of conveying machine drum body is arranged in the top of cylinder, discharge port, and the electric tube furnace is arranged in the outer wall of conveying machine drum body,
And be connected by cable with automatic control system, the electric tube furnace of the utility model is 1 ~ 8 section, and every section of electric tube furnace uses two
Half to opening structure.
As advanced optimizing for above scheme, it is welded in the conveying and stirring blade axial raised to main shaft
Convex block, the convex block are interspersed the upper and lower surface in the conveying and stirring blade, and the convex block is made of heat-resisting steel sheet and plate
" dentation " convex block or other shapes of convex block, conveying machine drum body outside be coated with high-temp antioxidizing paint.
As advanced optimizing for above scheme, the carbon dioxide recovery system, in accordance with the exhaust outlet of machine is sent by being connected
Exhaust pipe, the bag filter being connect with exhaust pipe and the carbon dioxide recovery device institute group being connect with bag filter
At.
As advanced optimizing for above scheme, the feed system is by feeding belt conveyer, with belt conveyor
The feeding warehouse being connected and the automatic feeder connecting with feeding warehouse, the automatic feeder is by cable and automatically controls system
System is connected.
As advanced optimizing for above scheme, the hot gas air inlet of recovery waste heat is provided on the side wall of the feeding warehouse
Mouthful.
As advanced optimizing for above scheme, the cooling system is by cooling storehouse and changing inside cooling storehouse is arranged in
Hot device is formed, and the air inlet of heat exchanger is connected with air blower, and the gas outlet of heat exchanger passes through waste heat recovery pipe road and charging
Air inlet on the side wall in storehouse is connected.
As advanced optimizing for above scheme, the supply unit group is 2-4 by the conveying with agitating function
The supply unit tandem compound of machine and the electric tube furnace being arranged on the conveyer outer wall with agitating function composition forms conveying
Unit group, the feed inlet of next supply unit of the supply unit group and the feed inlet of a upper supply unit are reversely set
Set, and be connected with the discharge port of a upper supply unit, and so on, the exhaust outlet of each supply unit pass through pipeline with
Carbon dioxide recovery system, in accordance is connected.
The principles of the present invention are: magnesite (including beneficiation concentrate powder) primary chemical group becomes magnesium carbonate, under high temperature
It decomposes and generates magnesia and carbon dioxide.According to studies have shown that the kick off temperature of magnesite at 400 DEG C or so, 500 DEG C~
700 DEG C of decomposition are fierce, and 800 DEG C are basically completed decomposition.
The beneficial effects of the utility model are: using the electric furnace of continuous stepping isolation as production light calcined magnesia
Equipment, compared with other production equipments, have non-environmental-pollution, production product it is flexible, production scale is changeable, small investment,
The advantages that carbon dioxide can be recycled.Conveying machine drum body and main shaft, blade with agitating function are processed using heat resisting steel, Ke Yi
1000 DEG C or less safe handlings；It is coated with high-temp antioxidizing paint outside cylinder, prevents heat resisting steel oxygen under long term high temperature state
Change；It is welded with " dentation " convex block being made of heat-resisting steel sheet and plate on the blade of rotation, increases heat-transfer effect；The temperature of electric tube furnace uses
High pressure gas or " dry ice " is made in electronic computer control, carbon dioxide after the recovery.Using the utility model device and
The production light calcined magnesia technique that method is formulated is, it can be achieved that produce light calcined magnesia in totally-enclosed, automation, pollution-free, guarantee
It works under safe condition, fully achieves the target of energy-saving and emission-reduction green production light calcined magnesia.
The utility model can be able to bear temperature and stress etc. according to property of raw material, product quality, yield and heat resisting steel
Supply unit is composed in series the supply unit group that multiple tail ends are connected with head end by condition, the utility model by supply unit group,
The organic assemblings such as waste heat decomposition bin, carbon dioxide recovery device constitute the technical solution of a new production light calcined magnesia, can give birth to
The light calcined magnesia of output difference purposes, the technical issues of being fully solved prior art objective reality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model produces light calcined magnesia using a supply unit group.
Fig. 2 is the partial enlarged view of supply unit group.
Fig. 3 is the structural schematic diagram that convex block is welded on conveying and stirring blade.
Fig. 4 is the structural schematic diagram that the utility model produces light calcined magnesia using three supply unit groups.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Embodiment 1 is the device that the utility model produces light calcined magnesia using a supply unit group.Design is produced per year light
8000 tons of burned magnesium oxide, calcination temperature mainly produces the light calcined magnesia of high-purity, high activity between 600 DEG C ~ 800 DEG C.
As shown in Figure 1-Figure 3, a kind of of the utility model produces light calcined magnesia using the continuous stepping isolation of electric energy
Device, which is characterized in that including a supply unit 1, feed system, discharge system, carbon dioxide recovery system, in accordance and automatic
Control system 2, the supply unit 1 is by the conveyer with agitating function and is arranged in outside the conveyer with agitating function
Electric tube furnace institute 17 on wall forms, and the upper right side of the conveyer 1 with agitating function is arranged in the feed system, described
The bottom on the left of the conveyer with agitating function is arranged in discharge system, and the discharge system includes protecting with refractory fibre
The waste heat decomposition bin 10 of temperature, is arranged in cooling storehouse at the cooling storehouse 11 connecting with the waste heat decomposition bin 10 with refractory fibre heat preservation
Cooling system that heat exchanger 12 and automatic discharging machine 14 in 11 are connect with the waste heat decomposition bin 10 with refractory fibre heat preservation and
Automatic discharging machine 14, carbon dioxide recovery system, in accordance are arranged in above the left side of the conveyer with agitating function.
Conveyer 1 described in the utility model with agitating function includes conveying machine drum body 1-1, feed inlet 1-6, exhaust
Mouth 1-5, discharge port 1-4, the main shaft being horizontally installed in conveying machine drum body 1-1 and main shaft coolant jacket 1-7, setting are cooling in main shaft
Conveying and stirring blade 1-3 and the spindle drive systems 1-8, the feed inlet 1-6 that are connect with main shaft and row on set 1-7
Port 1-5 is separately positioned on the top of conveying machine drum body 1-1, and the bottom of conveying machine drum body 1-1 is arranged in discharge port 1-4, described
Electric tube furnace 17 be arranged in the outer wall of conveying machine drum body 1-1, and be connected with automatic control system 2 by cable, it is described
Electric tube furnace 17 is 1 ~ 8 section, and every section of electric tube furnace 17 is using two halves to opening structure.The electric tube furnace 17 of the utility model is using high
Energy-saving heating material is imitated as heater, radiation paint is coated in the fire proof material of furnace lining working face of electric tube furnace, using fire resisting
Fiber effectively improves the service life of electric tube furnace as heat insulation layer.
In order to increase heat-transfer effect, the utility model is welded with to main shaft axial direction in the conveying and stirring blade 1-3
The convex block 1-2 of protrusion, the convex block 1-2 are interspersed the upper and lower surface in the conveying and stirring blade, the convex block by
" " dentation " convex block or other shapes of convex block of heat-resisting steel sheet and plate composition, convex block 1-2 not only increase agitating function, but also can
To guarantee that conveying and stirring blade 1-3 are used safely at 1000 DEG C or less.
The utility model is coated with high-temp antioxidizing paint in the outside of conveying machine drum body 1-1, effectively prevents conveyer
Cylinder aoxidizes under long term high temperature state.
The exhaust pipe that carbon dioxide recovery system, in accordance described in the utility model is connected by the exhaust outlet 1-5 with conveyer
9, the bag filter 8 connecting with exhaust pipe 9 and the carbon dioxide recovery device 7 connecting with bag filter 8 are formed.It will return
High pressure gas or " dry ice " is made in carbon dioxide after receipts, can be used as byproduct sale.
As advanced optimizing for above scheme, feed system described in the utility model by feeding belt conveyer 5, with
The feeding warehouse 6 that belt conveyor 5 is connected and the automatic feeder 4 connecting with feeding warehouse 6, the automatic feeder 4 pass through
Cable is connected with automatic control system 2.
As advanced optimizing for above scheme, the utility model is provided with waste heat on the side wall of the feeding warehouse 6 and returns
The hot gas air inlet 6-1 of receipts.
The air inlet of heat exchanger 12 described in the utility model is connected with air blower 13, and the gas outlet 16 of heat exchanger passes through
Waste heat recovery pipe road 3 is connected with the hot gas air inlet 6-1 of the waste heat recycling on the side wall of feeding warehouse 6.It not only realizes useless
The recycling of gas, while also playing the effect of environmental protection.
Using the method for the supply unit production light calcined magnesia of the utility model, including the following steps:
1) automatic feeding machine 4 being installed below by feeding warehouse 6, by powdery magnesite or concentrate powder from conveying machine drum body
Feed inlet 1-6 even into the conveying machine drum body 1-1 with agitating function inside；
2) automatic control system starts electric tube furnace 17, using magnesite or concentrate powder resolution characteristic, stirs function to having
The conveying machine drum body 1-1 of energy is heated, and will convey machine drum body 1 and conveying and stirring blade 1-3 is heated to 800 DEG C, while certainly
Autocontrol system starts spindle drive systems 1-8, makes conveying and stirring blade 1-3 according to direction, revolving speed rotation is determined, pushes powder
Shape magnesite powder or concentrate powder moves to conveying machine drum body tail end, magnesite powder or concentrate powder during the motion with convey machine barrel
Body 1-1, conveying and stirring blade 1-3 carry out heat exchange and decompose；The utility model conveys the magnesite moved in machine drum body 1-1
Fierce decomposition is stirred in movement, generates " boiling " phenomenon, increases powder granule and high temperature cylinder inboard wall and conveying and stirring
The touch opportunity of blade 1-3, so that magnesite or concentrate powder be made sufficiently to decompose；
3) magnesite powder or 90% or more concentrate powder for, reaching conveying machine drum body 1-1 tail end discharge port are completed to decompose, and are formed
700 DEG C ~ 750 DEG C of light calcined magnesia powder, light calcined magnesia powder enter the waste heat decomposition bin 10 with refractory fibre heat preservation
Slow cooling continues to complete unfinished decomposition；
4), after light-magnesite powder temperature is lower than 400 DEG C, into cooling storehouse 11, by the air blower in heat exchanger 12
13 cold airs being blown into absorb the heat of powder, after light calcined magnesia powder is quickly cooled to 50 DEG C or less, by being mounted on
Automatic discharging machine 14 below cooling storehouse discharges, packaging；
5), the pure carbon dioxide gas that magnesite powder or concentrate powder decompose generation passes through the row that portion on a conveyor is arranged
High pressure gas is made after being recycled by carbon dioxide recovering apparatus 7 after exhaust pipe 9 enters bag filter dedusting 8 in port 1-5
Body or " dry ice ".
6) hot-air after heat exchanger 12 to be absorbed to the heat of light calcined magnesia powder passes through 16 He of gas outlet of heat exchanger
Air delivering pipeline 3 through on the side wall of feeding warehouse waste heat recycling hot gas air inlet 6-1 be transported to feeding warehouse 6, for heat into
Magnesite powder or concentrate powder in feed bin.
1 electric thermal power of electric tube furnace furnace body is that 500 ~ 600KVA is adjustable；Machine drum body 2 is conveyed to manufacture using high temperature resistant cast steel,
Internal diameter 400mm, outer diameter 450mm, length 5000mm；It is whole using heat resisting steel that machine conveys cylinder 1-1, stirring blade 1-3 and main shaft 1-7
Body manufacture；Main shaft coolant jacket is passed through softening cooling water；Spindle drive systems 1-8 uses frequency modulation motor, what the utility model used
Automatic discharging machine 4, automatic discharging machine 14, electric tube furnace 17 and automatic control system 2 are the prior art, and this will not be repeated here.
Embodiment 2
Embodiment 2 is the device that the utility model produces light calcined magnesia using three supply units.Design is produced per year light-burned
30000 tons of magnesia, calcination temperature is mainly produced for the light-burned of two step grain magnesites of preparation between 400 DEG C ~ 800 DEG C
Magnesia.
As shown in figure 4, the utility model, which gives, passes through supply unit group made of tandem compound as three supply units
Embodiment, the feed inlet 2b-6 of second supply unit 2b and the feed inlet 1a-6 of first supply unit 1a are oppositely arranged,
And be connected with the discharge port 1a-4 of first supply unit, the feed inlet 3c -6 of 3 c of third supply unit and second it is defeated
It send the feed inlet 2b-6 of unit 2b oppositely arranged, and is connected with the discharge port 2b-4 of second supply unit 2b, each conveying
Exhaust outlet 1a-5,2b-5 and 3c-5 of unit pass through pipeline and are connected with carbon dioxide recovery system, in accordance.
The general power of three electric tube furnaces of the utility model is in 2000 ~ 2600KVA, adjustable；Conveying machine drum body is all made of resistance to
The manufacture of high temperature cast steel, internal diameter 400mm, outer diameter 500mm, length is respectively 10000mm, 7000mm and 5000mm；Conveying and stirring
Blade and main shaft are all made of heat-resisting manufacture；Conveyer main shaft coolant jacket each leads into softening cooling water；Conveyer powertrain
System uses different capacity frequency modulation motor.
The utility model is included the following steps: using the method for three supply unit group production light calcined magnesias
1) pass through the automatic feeder 4 that feeding warehouse 6 is installed below, magnesite powder or concentrate powder from first supply unit group
Convey machine drum body on feed inlet 1a-6 first even into first supply unit group 1a inside；
2) automatic control system starts electric tube furnace 17, goes here and there using magnesite or concentrate powder resolution characteristic, while to three
Join combined supply unit group to be heated, by the conveying machine drum body 1 of first supply unit 1a and convey and stirring blade 1-3
400 DEG C are heated to, the conveying machine drum body 1 of second supply unit 2b and conveying and stirring blade 1-3 are heated to 600 DEG C, it will
The conveying machine drum body 1 of third supply unit and conveying and stirring blade 1-3 are heated to 800 DEG C, and automatic control system opens simultaneously
The spindle drive systems 1-8 of dynamic three supply units, the conveying for making each supply unit and stirring blade 1-3 are according to determination side
To the rotation of, revolving speed, the magnesite powder or concentrate powder for reaching first supply unit tail end discharge port 1a-4 be heated to 300 DEG C ~
400 DEG C, then from the discharge port 1b-4 of first supply unit group into the feed inlet 2b-6 of second supply unit 2b, second
It travels forward under the conveying of a supply unit and the promotion of stirring blade, stirring, continues the conveying in second supply unit 2b
Heat exchange is carried out in cylinder, magnesite powder or concentrate powder reach fierce decomposition temperature scope, this section of magnesite decomposition amount is big, magnesite
Miberal powder or concentrate powder are in fluidized state, and the carbon dioxide of generation is more, and carbon dioxide passes through the row of the second supply unit 2b
Port 2b-5 and exhaust pipe 9 recycle carbon dioxide；
3) magnesite powder or concentrate powder for reaching the discharge port 2b-4 of second supply unit 2b tail end are heated to 500 DEG C
~ 600 DEG C, then enter from the discharge port 2b-4 of second supply unit the feed inlet 3c-6 of third supply unit, in third
It travels forward under the conveying of supply unit and the promotion of stirring blade, stirring, continues the conveying cylinder in third supply unit
Interior carry out heat exchange, continues to complete decomposition；4) magnesite powder or concentrate of third supply unit 3c tail end discharge port 3c-4 are arrived
90% or more powder is completed to decompose, and forms 700 DEG C ~ 750 DEG C of light calcined magnesia powder, which enters with resistance to
10 Slow cooling of waste heat decomposition bin of fiery fiber thermal insulation, continues to complete unfinished decomposition；
5), after magnesite powder or concentrate powder temperature are lower than 400 DEG C, into cooling storehouse 11, pass through the fast quickly cooling of heat exchanger 12
But it to after 50 DEG C or less, is discharged by the automatic discharging machine 14 being mounted below cooling storehouse 11, utilizes the packet with dampproof effect
Pack 15 is packed；
6) magnesite powder or concentrate powder are in the defeated of first supply unit, second supply unit and second supply unit
Send the carbon dioxide gas for decomposing and generating in cylinder by the way that each 1a-5,2b-5 and 3c-5 on conveying cylinder top is arranged through arranging
After feed channel 9 enters bag filter 8 and the carbon dioxide recovery device 7 connecting with bag filter 8, by carbon dioxide recovery device
High pressure gas or " dry ice " is made to sell as byproduct.
7) hot-air after the absorption powder heat for generating heat exchanger 12, passes through the gas outlet 16 of heat exchanger, waste heat returns
Closed tube road 3 is transported to feeding warehouse 6, for heating magnesite powder or concentrate powder in feeding warehouse.
The utility model makes magnesite powder or essence using the device and method of three groups of supply unit group production light calcined magnesias
Miberal powder stirs fierce decomposition in movement during the motion, generates " boiling " phenomenon, increases magnesite granule and conveyer
The touch opportunity of cylinder inboard wall and conveying and stirring blade improves yield so that magnesite or concentrate powder be made sufficiently to decompose, and fits
For producing two step grain magnesites.
Left and right side described in the utility model is only limitted to the embodiment of this case, the automatic control in the utility model
System uses existing automatic control system, also can according to need designed, designed.
Claims (9)
1. a kind of device using the continuous stepping isolation production light calcined magnesia of electric energy, which is characterized in that defeated including one
The supply unit group of sending unit or more than one supply unit to form, feed system, discharge system, carbon dioxide recovery system, in accordance and
Automatic control system, the supply unit is by the conveyer with agitating function and the conveyer with agitating function is arranged in
Electric tube furnace on outer wall is formed, and the upper right side of the conveyer with agitating function is arranged in the feed system, described
The bottom on the left of the conveyer with agitating function is arranged in discharge system, and the discharge system includes protecting with refractory fibre
The waste heat decomposition bin of temperature, the cooling system and automatic discharging machine being connect with the waste heat decomposition bin with refractory fibre heat preservation, dioxy
Change carbon recovery system to be arranged in above the left side of the conveyer with agitating function.
2. the device according to claim 1 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
It is that the conveyer with agitating function includes conveying machine drum body, feed inlet, exhaust outlet, discharge port, is horizontally installed on
Convey main shaft and main shaft coolant jacket in machine drum body, the conveying being arranged on main shaft and stirring blade and the master connecting with main shaft
Axis drive system, the feed inlet and exhaust outlet are separately positioned on the top of conveying machine drum body, and discharge port is arranged in conveyer
The bottom of cylinder, the electric tube furnace is arranged in the outer wall of conveying machine drum body, and is connected by cable with automatic control system
It connects.
3. the device according to claim 2 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
It is to be welded in the conveying and stirring blade to the axial raised convex block of main shaft, the convex block is interspersed in described defeated
It send and the upper and lower surface of stirring blade, " dentation " convex block that the convex block is made of heat-resisting steel sheet and plate.
4. the device according to claim 1 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
It is to be coated with high-temp antioxidizing paint in the outside of the conveying machine drum body.
5. the device according to claim 2 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
Be the carbon dioxide recovery system, in accordance by with the exhaust pipe that send the exhaust outlet of machine to be connected, the cloth being connect with exhaust pipe
Bag dust collector and the carbon dioxide recovery device connecting with bag filter are formed.
6. the device according to claim 1 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
It is that the feed system by feeding belt conveyer, the feeding warehouse being connected with belt conveyor and is connect with feeding warehouse
Automatic feeder, the automatic feeder are connected by cable with automatic control system.
7. the device according to claim 5 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
It is to be provided with the hot air inlet of waste heat recycling on the side wall of the feeding warehouse.
8. the device according to claim 6 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
It is that the cooling system is made of cooling storehouse and the heat exchanger being arranged in inside cooling storehouse, the air inlet and drum of heat exchanger
Blower is connected, and the gas outlet of heat exchanger is connected by waste heat recovery pipe road with the air inlet on the side wall of feeding warehouse.
9. the device according to claim 1 using the continuous stepping isolation production light calcined magnesia of electric energy, feature
It is that the supply unit group is 2-4 by the conveyer with agitating function and the conveyer with agitating function is arranged in
On outer wall electric tube furnace composition supply unit tandem compound form supply unit group, the supply unit group it is next
The feed inlet of supply unit and the feed inlet of a upper supply unit are oppositely arranged, and the discharge port phase with a upper supply unit
Connection, and so on, the exhaust outlet of each supply unit passes through pipeline and is connected with carbon dioxide recovery system, in accordance.
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| CN201821840675.7U CN209081747U (en) | 2018-11-09 | 2018-11-09 | Utilize the device of the continuous stepping isolation production light calcined magnesia of electric energy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109133676A (en) * | 2018-11-09 | 2019-01-04 | 辽宁科技大学 | Utilize the device and method of the continuous stepping isolation production light calcined magnesia of electric energy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109133676A (en) * | 2018-11-09 | 2019-01-04 | 辽宁科技大学 | Utilize the device and method of the continuous stepping isolation production light calcined magnesia of electric energy |
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