CN105890346B - Countercurrent flow manganese dioxide reduces rotary kiln - Google Patents
Countercurrent flow manganese dioxide reduces rotary kiln Download PDFInfo
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- CN105890346B CN105890346B CN201510021931.4A CN201510021931A CN105890346B CN 105890346 B CN105890346 B CN 105890346B CN 201510021931 A CN201510021931 A CN 201510021931A CN 105890346 B CN105890346 B CN 105890346B
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- Prior art keywords
- rotary kiln
- manganese dioxide
- ring
- outer barrel
- countercurrent flow
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- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 230000009467 reduction Effects 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000002411 adverse Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000009835 boiling Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 7
- 239000010962 carbon steel Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000006722 reduction reaction Methods 0.000 description 37
- 239000000047 product Substances 0.000 description 18
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 9
- 229910052748 manganese Inorganic materials 0.000 description 8
- 239000011572 manganese Substances 0.000 description 8
- 244000309464 bull Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a kind of countercurrent flow manganese dioxide to reduce rotary kiln, belongs to metallurgical engineering field.Countercurrent flow manganese dioxide reduction rotary kiln be by three raw material passed through in vertical multi-pipe manganese dioxide reduction roaster heating, reduction exothermic reaction, product water cooling processes in vertical tube order and lower flow, be changed to raw material heating process and adverse grade promoted and the upper flow for rotating suitable slope and lower progress countercurrent flow in pipe with reduction exothermic reaction, product cooling procedure by helical blade in casing.The temperature-rise period of raw material and the temperature-fall period of product is made inversely to be carried out in same equipment, realizes heat exchange, so as to reduce the consumption of heating fuel and cooling water.One a large amount of consumption energy, pollution environment, the production equipment for consuming cooling water are become a few consumption energy, seldom pollute environment, consume the production equipment of cooling water less, be the innovation to manganese dioxide reduction roaster by the present invention.
Description
Technical field
The present invention relates to a kind of Industrial Stoves, belong to metallurgical engineering field.It is particularly used for setting for manganese sand roasting
It is standby ----countercurrent flow manganese dioxide reduces rotary kiln.
Background technology
It is needed in manganese field of metallurgy in order to produce electrolytic manganese by the MnO in manganese ore2Roasting reduction is into MnO, containing MnO2Manganese
Ore in sand form proceeds by reduction reaction with anchracite duff Hybrid Heating to 800 DEG C, and reduction reaction is exothermic reaction, is generated containing MnO's
Product isolation air cooling is then completed reduction process by product to 60 DEG C.Chemical reaction therein is as follows：
2MnO2+ C=2MnO+CO2↑+174.6kJ
The prior art of manganese dioxide roasting apparatus has a variety of stoves such as Muffle furnace, converter, fluidized bed furnace and multitube shaft furnace, altogether
It is a large amount of consumption energy with feature, pollution environment substitutes existing equipment, it is necessary to develop a kind of new equipment.Wherein there was only vertical multi-pipe
Manganese dioxide reduction roaster has larger advantage to put it over than other stoves.However vertical multi-pipe manganese dioxide reduction roasting
The drawbacks of stove is high there are still energy consumption, and cooling effect is poor.
Reference paper 1：It is put down by ancestor, in the research of You Xianjun, Peng Shunlian, Li Li manganese dioxide reduction roaster and application
State's manganese industry, 2009,27 (2)：24-26.
Reference paper 2：The technological progress and development direction China Metal nets of Zeng Xiangbo China electrolytic manganese metal：6 multitubes
Formula Tecnored Process
Reference paper 3：Zeng Xiangbo《Manganese dioxide reduction technique》Road visitor bar bar meeting papers
Reference paper 4：The vertical multi-pipe manganese dioxide reduction roaster patent No.s：202810073937.
The content of the invention
In order to solve the above-mentioned technical problem the present invention, the raw material passed through in vertical multi-pipe manganese dioxide reduction roaster is added
Heat, reduction exothermic reaction, three processes of product water cooling in vertical tube order and under flow, be changed to raw material heating process and covering
Adverse grade is promoted and upper with reduction exothermic reaction, the lower progress along slope in inner tube rotation of product cooling procedure by helical blade in pipe
The flow of countercurrent flow.The temperature-rise period of raw material and the temperature-fall period of product inversely carry out in same equipment, realize that heat is handed over
It changes, so as to reduce the consumption of heating fuel and cooling water.
To achieve these goals, technical solution provided by the invention is countercurrent flow manganese dioxide reduction rotary kiln, is sent out
Bright content is：
1. the equipment of the present invention is made of rotary kiln 2 and tripping sleeve 3, tripping sleeve 3 is sleeved on 2 outside of rotary kiln；Countercurrent flow
The discharge port 5 of manganese dioxide reduction rotary kiln connects with the sealing of water cooler 1 of its lower left, the flange port of 15 axis right of rotating cylinder
23 connect with burner 4.Cold raw material manganese dioxide from hopper 39 into frequency control revolving plow reclaimer 38, through feed inlet 27 into
Enter between tripping sleeve and rotary kiln, the adverse grade under the promotion of helical blade 16 and it is upper in rotating cylinder 15 under rotary action suitable slope and
Under hot product manganese dioxide sufficiently exchanged heat；When raw material manganese dioxide is preheated to 800 DEG C, it is anti-to proceed by reduction
Mouth 17 of turning back should and be reached to enter in rotating cylinder 15；Reduction reaction is exothermic reaction, and it is suitable to carry out reduction reaction side in 15 inner edge of rotating cylinder
Slope and under, terminate to continue to cool down after reduction reaction along slope and under, until the discharge port 5 of rotary kiln 2, temperature drop to 250 DEG C or so it is complete
Into the exothermic process that cools down.And then completely cut off air cooling to 60 DEG C of formation products by water cooler 1.Due to the cold raw material of one side
It fully contacts and is heated with 15 outer wall of rotating cylinder under the agitation of helical blade；The work of another aspect hot charge overturning in rotating cylinder 15
With lower abundant exothermic heat of reaction, hot product material comes into full contact with conduction heat release with 15 inner wall of rotating cylinder, is completed under very fare-you-well
Reduction reaction and the process that cools, as long as reaction heat is more than the difference that raw material heating heat and cooling heat of the product in kiln are subtracted each other
Value, equipment, which once starts, continuously to be carried out.Mated burner 4 of the present invention and the smoke outlet 8 for having baffle 7, are to be used for
The equipment starting period, cold raw material was heated and concurrent heating is resumed operation when the runtime there is abnormal interrupt, equipment normal operation
Phase then stops the burning of burner, closes the baffle of smoke outlet.The present invention consumes an a large amount of consumption energy, pollution environment
The production equipment of cooling water becomes a few consumption energy, seldom pollutes environment, consumes the production equipment of cooling water less, be pair
The innovation of manganese dioxide roasting oven.
2. the content of the invention of countercurrent flow manganese dioxide reduction rotary kiln also has：15 center outer surface of the rotating cylinder installation of rotary kiln 2
Helical blade 16 and mouth 17 of turning back constitute spiral propeller with tripping sleeve 3, promote raw material adverse grade and on；
3. the content of the invention of countercurrent flow manganese dioxide reduction rotary kiln also has：The rotating cylinder 15 of rotary kiln 2 and the left side that a left side is covered greatly are close
Dynamic sealing between dynamic sealing between seal ring 9, with the right refractory seals ring 20 covered greatly；The left side of tripping sleeve 3 sets left sealing ring
25, right side sets right sealing ring 31.Four sealing rings by the outer barrel 28 of the rotating cylinder 15 of rotary kiln and tripping sleeve 3 formed jacket space and
Rotating cylinder 15 and left big cover 6, the thorax body space of right big cover 22 form unified enclosure space, and raw material heating process and reduction heat release are anti-
It answers, product cooling procedure all carries out in this enclosure space.A small amount of CO that reduction reaction generates2Gas is formed in space
Micro-positive pressure can prevent air from leaking into space, a small amount of CO2Air is discharged through each gap, greatly reduces manganese roasting to environment
Pollution.
4. the content of the invention of countercurrent flow manganese dioxide reduction rotary kiln also has：Refractory seals ring 20 is that section is L-shaped
Annulus, the internal diameter of ring are slightly larger than the outer diameter of rotating cylinder 15, and the horizontal ring inner surface of L-shaped annulus is equipped with several annular ditch grooves, and slot is built-in resistance to
Hot packing belt 26, the wired hose that heat-resistant filler band 26 is rolled by heat-resistant steel wire, solid alumina silicate fibre rope composition.Resistance to height
Warm sealing ring 20 is a heat-resisting steel loop of entirety, is sleeved on the right end of rotating cylinder 15；Right sealing ring 31 is made of two semicircular rings, two
Semicircular ring bolt 35, spring pad 36, nut 37 are fixed into full circle, and right sealing ring 31 is heat-resisting steel loop.In order to prevent due to rotation
Scratch caused by 15 thermal deformation of rotating cylinder turned between quiet component, needs larger between High Temperature Rotating rotating cylinder 15 and quiet component
Gap.The right sealing ring 31 of refractory seals ring 20 and heat resisting steel solve the rotating cylinder 15 of High Temperature Rotating big cover right with quiet component and
The sealing problem of larger gap between tripping sleeve 3.
5. the content of the invention of countercurrent flow manganese dioxide reduction rotary kiln also has：Arc electricity is set in the right part of tripping sleeve 3 to add
Hot plate 53 and thermocouple 52, the effect of arc electric boiling plate 53 are that a part for the raw material that will be had been warmed up is risen rapidly with electrical heating
Temperature plays the role of igniting and concurrent heating, thermocouple 52 then monitors the temperature of the part material to 800 DEG C of initial reduction reaction temperature
Degree.
6. the content of the invention of countercurrent flow manganese dioxide reduction rotary kiln also has：Elastic support 30 holds up tripping sleeve 3, makes to float
Moving sleeve 3 is floated on the axis of rotary kiln 2, mitigates the breaking force generated to rotary kiln 2.
The structure of the countercurrent flow manganese dioxide reduction rotary kiln of the present invention has with vertical multi-pipe manganese dioxide reduction roaster
Difference substantially, thermal procession very goodization in this equipment, for chemical process be carried out continuously provide it is very good
Good temperature conditionss and stirring condition, are conducive to the abundant progress of chemical process.Countercurrent flow manganese dioxide reduction rotary kiln is than existing
There is technology to have following income：
1. raw material heating process is all carried out with reduction exothermic reaction, product cooling procedure in this enclosure space.Also
A small amount of CO that original reaction generates2Gas forms micro-positive pressure in the enclosed space to prevent air from leaking into, and only a small amount of chemistry is anti-
The CO that should be generated2Air is discharged through each gap, greatly reduces pollution of the manganese dioxide roasting to environment；
It is heated, and is stirred 2. on the one hand cold raw material fully contacts under the agitation of helical blade with rotary kiln outer wall
It is visibly homogeneous；Another aspect hot charge abundant exothermic heat of reaction, hot product under the action of rotary kiln overturning fully connect with rotary kiln inner wall
Heat release is touched, reduction reaction and the process that cools are completed under very fare-you-well, it is excessive that incorporation in the feed can be reduced
The ratio of anchracite duff, raw material MnO2Conversion ratio be up to more than 98%, reduce production cost and improve product
Yield rate.
3. the raw material that countercurrent flow manganese dioxide reduction rotary kiln will be passed through in vertical multi-pipe manganese dioxide reduction roaster
Heating, reduction exothermic reaction, the sequence flow of three processes of product water cooling, are changed to raw material heating process in casing by spiral
Blade promotes adverse grade and upper and reduction exothermic reaction, product cooling procedure are rotated in pipe along slope and the lower stream for carrying out countercurrent flow
Journey.The temperature-rise period of raw material and the temperature-fall period of product is made inversely to be carried out in same equipment, heat exchange is realized, so as to reduce
The consumption of heating fuel and cooling water.The present invention sets an a large amount of consumption energy, pollution environment, the production for consuming cooling water
It is standby to become a few consumption energy, environment is seldom polluted, the production equipment of cooling water is consumed less, greatly reduces titanium dioxide
The production cost of manganese roasting.
4. the scratch caused by revolving drum thermal deformation between quiet component in order to prevent, High Temperature Rotating rotating cylinder with
It needs larger gap, to take two technologies of refractory seals ring and elastic support in the present invention, solve between quiet component
Sealing problem between the rotating cylinder of High Temperature Rotating and quiet component.The present invention not only solves the reduction of this countercurrent flow manganese dioxide and turns
The high temperature dynamic sealing problem of kiln, also provides high temperature moving sealing element for same category of device.
Description of the drawings
Fig. 1 countercurrent flow manganese dioxide calciner elevation；
2 profilograph of rotary kiln of Fig. 2 present invention；
3 profilograph of tripping sleeve of Fig. 3 present invention；
Fig. 4 B to
Fig. 5 A partial enlargements
Fig. 6 C partial enlargements
Specific embodiment
With reference to specific embodiment, the present invention will be described in detail.
Embodiment describes：Referring to attached drawing 1, countercurrent flow manganese dioxide reduction rotary kiln is made of rotary kiln 2 and tripping sleeve 3,
15 outer surface of rotating cylinder of rotary kiln 2 is equipped with helical blade 16 and mouth 17 of turning back；Tripping sleeve 3 is sleeved on 2 outside of rotary kiln, is arranged on two
On elastic support 30；The discharge port 5 of rotary kiln 2 connects with the sealing of water cooler 1 of its lower left, the discharging of 1 lower section of water cooler
Mouth 40 connects with the sealing of impeller blowdown machine 41 of frequency control；The flange port 23 of 2 axis right of rotary kiln connects with burner 4；It is floating
The feed inlet 27 of moving sleeve 3 connects the revolving plow reclaimer 38 of frequency control, top receiving hopper 39；Water cooler 1, burner 4 become
The revolving plow reclaimer 38 of frequency modulation speed and the impeller blowdown machine 41 of frequency control are approved product.
Referring to attached drawing 2, rotary kiln by left big cover 6, rotating cylinder 15, revolver band 10, bull gear 11, helical blade 16, mouth 17 of turning back,
Right wheel band 19, right big 22 composition of cover；Left big cover is a left end closing, and the cylinder of right-end openings, lower section sets out material mouth 5, top
If the smoke outlet 8 with baffle 7, smoke outlet 8 is a flange short tube；Cylinder right end sets sealing ring 9, and sealing ring 9 is carbon steel ring, is covered
In the left end of rotating cylinder 15；Left big cover 6 is sitting on bearing 50；Right big cover 22 is the circle of an inner surface set heat resistance concrete layer 21
Cylinder, right end set flange port 23, and left end sets refractory seals ring 20, and refractory seals ring 20 is the annulus that section is L-shaped, ring it is interior
Footpath is slightly larger than the outer diameter of rotating cylinder 15, and the horizontal ring inner surface of L-shaped annulus is equipped with several annular ditch grooves, the built-in heat-resistant filler band 26 of slot,
The wired hose that heat-resistant filler band 26 is rolled by heat-resistant steel wire, solid alumina silicate fibre rope composition；Refractory seals ring 20
It is a heat-resisting steel loop of entirety, is sleeved on the right end of rotating cylinder 15；Right big cover 22 is sitting on bearing 49；Rotating cylinder 15 is a cylinder, left
Half portion is carbon steel, and right side is heat resisting steel, and 15 left side of rotating cylinder dress revolver band 10, revolver band is the smooth carbon steel ring in an outside,
It is sleeved on rotating cylinder, the right side of revolver band 10 is bull gear 11, and bull gear is external toothing steel loop, is sleeved on rotating cylinder 15；In rotating cylinder 15
Portion outer surface sets helical blade 16, and the outer diameter of helical blade 16 is slightly less than the internal diameter of the outer barrel 28 of tripping sleeve 3；Helical blade 16
Right side set mouth 17 of turning back, mouth 17 of turning back is several long square openings around the rotating cylinder 15；Turn back the right of mouth 17 sets right wheel
Band 19, right wheel band are the heat-resisting steel loops of a smooth outer surface, are sleeved on rotating cylinder；Left support roller 13 and right support roller 18 hold up rotating cylinder
15, axis and the horizontal line of rotating cylinder 15 have appropriate angle, and wheel is approved product；The transmission mechanism 14 of variable-frequency governor
Mounted on the side-lower of bull gear 11, gear wheel 12 is mounted on the left side of revolver band 10, the transmission mechanism 14 and gear wheel of frequency control
12 also have the approved product supply of material.
Referring to attached drawing 3 and attached drawing 5, attached drawing 6, tripping sleeve by left sealing ring 25, feed inlet 27, outer barrel 28, insulating layer 29,
Elastic support 30, arc electric boiling plate 53, thermocouple tube socket 51, right sealing ring 31 form；Left sealing ring 25 and right sealing ring 31
It is the annulus that section is L-shaped, the internal diameter of ring is slightly larger than the outer diameter of rotating cylinder 15, and the horizontal ring inner surface of L-shaped annulus is equipped with several ring-types
Groove, the built-in heat-resistant filler band 26 of slot, the wired hose that heat-resistant filler band 26 is rolled by heat-resistant steel wire, solid aluminium silicate fiber
Dimension rope composition；The perpendicular ring of L-shaped annulus is flange, and 28 both ends of outer barrel, sealing ring are fixed on bolt 32, spring pad 33, nut 34
It is made of two semicircular rings, two semicircular ring bolts 35, spring pad 36, nut 37 are fixed into full circle, and left sealing ring 25 is carbon
Steel loop, right sealing ring 31 are heat-resisting steel loop；Outer barrel 28 is a cylinder, and left side is carbon steel, and right side is heat resisting steel, outer barrel 28
Upper left quarter set feed inlet 27, feed inlet is a square short tube of flange；Arc electric boiling plate 53 is set below the right part of outer barrel 28,
Right side sets thermocouple tube socket 51；Arc electric boiling plate 53 is made of arc shell 54, radial brick 55 and resistance wire 56, and radial brick 55 is
The fluted refractory brick of inner surface, in arc shell 54, the built-in resistance wire 56 of groove of radial brick 55；Thermocouple tube socket 51 is
One internal thread short tube, is welded on the wall of outer barrel 28, installs thermocouple 52；28 outer surface of outer barrel sets rock wool heat-preservation layer 29, outer barrel
28 are arranged on two elastic supports 30.
Referring to attached drawing 5, elastic support 30 is by upper spring seat 42, spring 43, lower spring cup 44, arc pallet 45, upper stopper
46th, lower block 47, bottom plate 48 form, and four springs 43 are mounted between upper spring seat 42 and lower spring cup 44, and upper spring seat 42 is
The cylinder of falling turriform, upper end are inclined-plane, are fixed on the corner of arc pallet 45, and lower spring cup is cylinder, is fixed on rectangle
On the corner of bottom plate 48；Cuboid upper stopper 46 is fixed on the middle and lower part of arc pallet 45, and block 47 is fixed under two cuboids
On bottom plate 48 and in upper stopper 46 both sides；Arc pallet 45 is fixed on the outer barrel 28 of tripping sleeve 3.
Claims (4)
1. countercurrent flow manganese dioxide reduces rotary kiln, which is made of rotary kiln (2) and tripping sleeve (3), tripping sleeve (3) set
Outside rotary kiln (2), it is arranged on two elastic supports (30)；The discharge port (5) of rotary kiln (2) and the water cooler of its lower left
(1) sealing connects, and the discharge port (40) of mouth connects with impeller blowdown machine (41) sealing of frequency control under water cooler (1)；Turn
The flange port (23) of kiln (2) axis right connects with burner (4)；The feed inlet (27) of tripping sleeve (3) connects frequency control
Revolving plow reclaimer (38), top receiving hopper (39)；Water cooler (1), burner (4), the revolving plow reclaimer of frequency control
(38) and the impeller blowdown machine (41) of frequency control is approved product, which is vertical multitube manganese dioxide reduction roasting
Passed through in stove raw material heating, reduction exothermic reaction, three processes of product water cooling in vertical tube order and under flow into
Row improves, and improved flow characteristics are：The upper and reduction by helical blade propulsion adverse grade in casing of raw material heating process
Exothermic reaction, product the cooling procedure lower carry out countercurrent flow along slope in inner tube rotation.
2. countercurrent flow manganese dioxide according to claim 1 reduces rotary kiln, it is characterized in that：The rotating cylinder (15) of rotary kiln (2)
Center outer surface is mounted with helical blade (16), and the outer diameter of helical blade (16) is slightly less than the outer barrel (28) of tripping sleeve (3)
Internal diameter；Mouth of turning back (17) is set on the right side of helical blade (16), mouth of turning back (17) is several length being centered around around rotating cylinder (15)
Square opening.
3. countercurrent flow manganese dioxide according to claim 1 reduces rotary kiln, it is characterized in that：Tripping sleeve (3) is by left close
Seal ring (25), feed inlet (27), outer barrel (28), arc electric boiling plate (53), thermocouple tube socket (51), insulating layer (29), elasticity
Bearing (30), right sealing ring (31) composition, left sealing ring (25) and right sealing ring (31) are annulus of the section for L-shaped, ring it is interior
Footpath is slightly larger than the outer diameter of rotating cylinder (15), and the horizontal ring inner surface of L-shaped annulus is equipped with several annular ditch grooves, the built-in heat-resistant filler band of slot
(26), the wired hose that heat-resistant filler band (26) is rolled by heat-resistant steel wire, solid alumina silicate fibre rope composition；L-shaped annulus
Perpendicular ring be flange, be fixed on outer barrel (28) both ends with bolt (32), spring pad (33), nut (34), two sealing rings are respectively by two
A semicircular ring composition, two semicircular rings are fixed into full circle ring, left sealing ring with bolt (35), spring pad (36), nut (37)
(25) it is carbon steel ring, right sealing ring (31) is heat-resisting steel loop；Outer barrel (28) is a cylinder, and left side is carbon steel, and right side is
Heat resisting steel, the upper left quarter of outer barrel (28) set feed inlet (27), and feed inlet (27) is a square short tube of flange；The right side of outer barrel (28)
Arc electric boiling plate (53) is set below portion, thermocouple tube socket (51) is set on the right side of arc electric boiling plate；Arc electric boiling plate (53)
It is made of arc shell (54), radial brick (55) and resistance wire (56), radial brick (55) is the fluted refractory brick of inner surface, is mounted in
In arc shell (54), the built-in resistance wire of groove (56) of radial brick (55)；Thermocouple tube socket (51) is an internal thread short tube, welding
On the wall of outer barrel (28), thermocouple (52) is installed；Outer barrel (28) outer surface sets rock wool heat-preservation layer (29), and outer barrel (28) is arranged on
On two elastic supports (30).
4. countercurrent flow manganese dioxide according to claim 1 reduces rotary kiln, it is characterized in that：Elastic support (30) is by upper bullet
Spring abutment (42), spring (43), lower spring cup (44), arc pallet (45), upper stopper (46), lower block (47), bottom plate (48) group
Into, four springs (43) are mounted between upper spring seat (42) and lower spring cup (44), and upper spring seat (42) is the cylinder of falling turriform, on
It holds as inclined-plane, is fixed on the corner of arc pallet (45), lower spring cup is cylinder, is fixed on the four of rectangle bottom plate (48)
On angle；Cuboid upper stopper (46) is fixed on the middle and lower part of arc pallet (45), and block (47) is fixed on bottom under two cuboids
On plate (48) and the both sides in upper stopper (46)；Arc pallet (45) is fixed on the outer barrel (28) of tripping sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021931.4A CN105890346B (en) | 2015-01-16 | 2015-01-16 | Countercurrent flow manganese dioxide reduces rotary kiln |
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|---|---|---|---|
| CN201510021931.4A CN105890346B (en) | 2015-01-16 | 2015-01-16 | Countercurrent flow manganese dioxide reduces rotary kiln |
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| Publication Number | Publication Date |
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| CN105890346A CN105890346A (en) | 2016-08-24 |
| CN105890346B true CN105890346B (en) | 2018-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108180756A (en) * | 2017-12-07 | 2018-06-19 | 天长市昭田磁电科技有限公司 | A kind of multitube rotary kiln |
| CN110006247B (en) * | 2019-05-10 | 2024-04-12 | 黎柴佐 | Regenerative powder heat treatment device and method thereof |
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| CN2869723Y (en) * | 2006-02-08 | 2007-02-14 | 孙学忠 | Novel multi-return-stroke drum heating apparatus |
| CN102040247A (en) * | 2010-11-20 | 2011-05-04 | 湖北开元化工科技股份有限公司 | Method and device for producing chemical manganese dioxide |
| CN202692618U (en) * | 2012-06-06 | 2013-01-23 | 王松正 | External-heating-type dual-layer drying kiln |
| CN204461041U (en) * | 2015-01-16 | 2015-07-08 | 张寅� | Countercurrent flow manganese dioxide reduction rotary kiln |
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| CN2869723Y (en) * | 2006-02-08 | 2007-02-14 | 孙学忠 | Novel multi-return-stroke drum heating apparatus |
| CN102040247A (en) * | 2010-11-20 | 2011-05-04 | 湖北开元化工科技股份有限公司 | Method and device for producing chemical manganese dioxide |
| CN202692618U (en) * | 2012-06-06 | 2013-01-23 | 王松正 | External-heating-type dual-layer drying kiln |
| CN204461041U (en) * | 2015-01-16 | 2015-07-08 | 张寅� | Countercurrent flow manganese dioxide reduction rotary kiln |
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