CN107986307A - A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering - Google Patents
A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering Download PDFInfo
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- CN107986307A CN107986307A CN201711481045.5A CN201711481045A CN107986307A CN 107986307 A CN107986307 A CN 107986307A CN 201711481045 A CN201711481045 A CN 201711481045A CN 107986307 A CN107986307 A CN 107986307A
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- China
- Prior art keywords
- filtering table
- sintering
- red mud
- production
- turns over
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Links
- 238000001914 filtration Methods 0.000 title claims abstract description 91
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000005245 sintering Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 claims abstract description 37
- 238000005406 washing Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000005201 scrubbing Methods 0.000 claims abstract description 30
- 239000002002 slurry Substances 0.000 claims abstract description 26
- 239000006210 lotion Substances 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 7
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 abstract description 14
- 230000029087 digestion Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 14
- 239000012065 filter cake Substances 0.000 description 12
- 239000003513 alkali Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000004131 Bayer process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/0646—Separation of the insoluble residue, e.g. of red mud
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/17—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables
- B01D33/19—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables the table surface being divided in successively tilted sectors or cells, e.g. for discharging the filter cake
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/20—Pressure-related systems for filters
- B01D2201/204—Systems for applying vacuum to filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to sintering process production aluminum oxide technology field, disclose a kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering, including discoidal operation area, operation area includes Disengagement zone, scrubbing section and mud discharging area, three regions are sector, and Disengagement zone is equipped with thick liquid bath, and scrubbing section is equipped with washing lotion groove, mud discharging area is equipped with red mud groove, and thick liquid bath is equipped with vacuum extractor；Rotated above whole operation area and be equipped with discoidal filtering table, filtering table is coaxial with operation area, filtering table include at least several contact with each other and mutually independent sector disk, be removably connected with filter cloth on sector disk, discharging can be overturn when each sector disk turns to mud discharging area；Clinker slurry feed pipe is equipped with positioned at the top of Disengagement zone above filtering table, the first hot-water line is equipped with above scrubbing section above filtering table.The present invention solves existing clinker slurry and carries out the problem of liquid-solid separation efficiency is low, and secondary response Probability causes the net digestion efficiency of aluminium oxide low greatly.
Description
Technical field
The invention belongs to sintering process production aluminum oxide technology field, and in particular to one kind is used for red mud alumina by sintering and gives birth to
The vacuum type filtration apparatus that turns over of production.
Background technology
, it is necessary to be related to raw slurry sintering, Clinker digestion, the separation of solid and liquid of clinker slurry when producing aluminium oxide using sintering process
Etc. process, the separation of solid and liquid of wherein clinker slurry refers to separate the solid matter of clinker slurry, thick liquid is taken, for follow-up knot
Crystalline substance etc..The solid matter separated can repeatedly be washed, filtered, and the more clean solid matter eventually formed is oxygen
Change red mud common in aluminium production, red mud recycle bin is drained into outside the red mud, for other places.
In the prior art, the separation of solid and liquid of clinker slurry is usually all to use subsider, and subsider is in tubbiness, and its underpart is
Clinker slurry, during production, is directly injected into subsider and stands by taper, and over time, solid matter therein can be
Settled downwards under the gravity of its own, and liquid can then stay in top, realize layering, after upper liquid clarification, then
Levels are separated, supernatant liquid is required thick liquid, and lower floor's underflow after multiple washing and filter pressing up to red mud
Outer row.
The prior art using subsider come carry out clinker slurry separation of solid and liquid by the way of there are problems with：
1st, high for the Clinker digestion slurry turbidity of underburnt in sintering, red mud expands not free settling, in subsider
Effect of settling is poor；
2nd, subsider needs slowly to sink by the gravity of solid matter itself, for muddy liquid, Gu
The speed of body material sedimentation is very slow, causes separating effect low；
3rd, the time of separation of solid and liquid is grown, and the secondary response Probability in clinker slurry is big, causes the net digestion efficiency of aluminium oxide
It is low；
4th, the rapid hardening of clinker red mud is strong, easily scabs, and subsider is bulky in addition, and deep, therefore clears up and frequently take again
Power.
The content of the invention
The invention is intended to provide a kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering, to solve
The efficiency that existing clinker slurry carries out solid-liquor separation is low, and secondary response Probability is big and causes the net digestion efficiency of aluminium oxide is low to ask
Topic.
The present invention provides following base case：A kind of vacuum type filtering dress that turns over for the production of red mud alumina by sintering
Put, including discoidal operation area, operation area along the circumferential direction include Disengagement zone, scrubbing section and mud discharging area, three regions successively
It is sector, Disengagement zone is equipped with thick liquid bath, and scrubbing section is equipped with washing lotion groove, and mud discharging area is equipped with red mud groove, and the thick liquid bath is equipped with
Vacuum extractor；Rotated above whole operation area and be equipped with discoidal filtering table, filtering table is coaxial with operation area, and filtering table includes
At least three contact with each other and mutually independent sector disk, are removably connected with filter cloth on sector disk, each sector disk turns to
Discharging can be overturn during mud discharging area；Clinker slurry feed pipe is equipped with positioned at the top of Disengagement zone, above the filtering table on filtering table
Orientation is equipped with the first hot-water line above scrubbing section.
In above-mentioned base case, operation area is the region of whole filtration operation, it includes Disengagement zone, scrubbing section and dump
Area, three constitute a complete disc.Thick liquid bath is used to collect the thick liquid after ripe slurry filtration, and washing lotion groove is used to collect
Washing lotion after Washing of Filter Cake, red mud groove are used to collect the filter cake slurries after washing, and vacuum extractor is easy to take out clinker slurry
Filter.Filtering table can rotate above operation area, it includes several and contacts with each other and mutually independent sector disk, i.e., these are fanned
Shape disk has collectively constituted a complete discoid filtering table, but but independently of each other, between will not influencing each other each
Movement, with this easy to being separated by filtration, wash and discharging is carried out at the same time.Sector disk can be overturn when turning to mud discharging area so that filter cake
Slide downwards, realize discharging, the material unloaded at this time is red mud.Clinker slurry feed pipe is used to clinker slurry being delivered to Disengagement zone,
First hot-water line is used for delivery to scrubbing section, easy to wash.
The present invention technical principle be：Clinker slurry enters to Disengagement zone and is filtered by vacuum, be filtered by vacuum first due to
Applied external force is intervened, the efficiency being separated by filtration is higher, and separation of solid and liquid obtains thoroughly.Enter scrubbing section after having filtered immediately
Washed, attached alkali and aluminium hydroxide on filter cake are recycled, to reduce alkaline consumption, ore deposit consumption.Enter mud discharging area after having washed immediately, will
Filter cake is laid down, and proceeds by being separated by filtration for next round.
The technical effects of the invention are that：
1st, scheme using the present invention, due to being that under vacuum, that is, by means of applied external force, good filtration effect,
It is efficient.
2nd, filter efficiency of the present invention is high, and the time of separation of solid and liquid is short, greatly reduces the probability of secondary response generation, oxygen
The net digestion efficiency for changing aluminium is high.
3rd, in the present invention filtering table be it is exposed discoid, it is easy to clean, for subsider of the prior art,
It is low to clean cost.
4th, in terms of existing technologies, present invention greatly enhances clinker discharge quantity, under equal conditions, add
The yield of alumina by sintering.
5th, in terms of existing technologies, the present invention improves the benefit alkali number of sintering normal direction Bayer process system, so as to reduce
Alkaline consumption, reduces production cost.
6th, in terms of existing technologies, good effect of separating solid from liquid of the present invention, significantly reduces red mud exterior liquid and compares admittedly,
Not only full factory's water balance had been controlled, but also has reduced coal consumption, power consumption.
Further, above the filtering table the second hot-water line is equipped with above mud discharging area.Second hot-water line can convey
Above hot water to mud discharging area, the sector disk of mud discharging area is moved to for washing away, easy to discharging.
Further, the top above the Disengagement zone positioned at filtering table is equipped with distributing device.Setting distributing device to be conducive to will be ripe
Slurry is uniformly distributed on the filtering table above Disengagement zone, forms the filter cake of consistency of thickness, and it is good to filter effect.
Further, the scrubbing section includes the first scrubbing section and the second scrubbing section, both are all provided with close to the side of Disengagement zone
There is the first hot-water line.By washing twice, and washing is washed next time again after draining for the first time, is conducive to that red mud will be reduced
On attached alkali, improve sintering normal direction Bayer process system benefit alkali number, reduce alkaline consumption.
Further, second hot-water line is set along the radial direction of filtering table, and the tube wall of the second hot-water line is equipped with multiple punchings
Water hole.So as to so that the scope that is flushed on sector disk of the hot water above mud discharging area is wide, be washed away beneficial to filter cake.
Further, the multiple flushing hole is set along the axial direction of the second hot-water line in two rows of.It is designed to compared to flushing hole
For one row, flushing hole is designed to two rows, the hot water above mud discharging area is flushed in the scope on sector disk wider, and may be such that
Sector disk tow sides can be rinsed totally, reduce residual quantity of the filter cake on filter cloth, be conducive to next round suction filtration.
Further, the ratio between radian of the Disengagement zone, scrubbing section, mud discharging area is 6:5:1.It is demonstrated experimentally that such radian
Proportionality design, just enters next region after being drained beneficial to filter cake, reduce the attached alkali number of outer row's red mud, especially filtering separation
After washing, carried out in next step if not draining, the attached alkali number of outer row's red mud is high.
Further, the gas collecting tube for being used for collecting steam above filtering table is equipped with above the filtering table.It had been separated by filtration
Cheng Zhong, filtering table top can produce substantial amounts of steam, which can cause whole production environment smog to curl up, on the one hand the steam
In contain alkali, operating personnel is unfavorable for its health after absorbing, and on the other hand, steam is shrouded, is not easy to produced on-site shape
The observation monitoring of state.
Further, the gas collecting tube is connected with washing lotion groove.Washing lotion in washing lotion groove can be sent to Clinker digestion, Clinker digestion pair
The temperature of washing lotion there are certain requirements, it is necessary to heated to washing lotion, and steam has certain temperature, be introduced into washing lotion groove
In, a degree of heat temperature raising can be carried out to washing lotion, realize the recycling of heat.
Further, the suction end of the gas collecting tube is located at the overcentre of filtering table, and air-suction cover is equipped with suction end.
This design is beneficial to the collecting effect of enhancing on-site steam.
Brief description of the drawings
Fig. 1 is the structure diagram of operation area of the present invention；
Fig. 2 is the structure diagram of filtering table of the present invention；
Fig. 3 is the relational structure schematic diagram between backgauge unit and gas collecting tube, filtering table in embodiment three；
Fig. 4 is the structure diagram of sector disk；
Fig. 5 is the structure diagram of upset track.
Embodiment
Below by the further details of explanation of embodiment：
Reference numeral in Figure of description includes：Disengagement zone 1, the first scrubbing section 2, the second scrubbing section 3, clinker slurry charging
Pipe 4, the second hot-water line 5, the first hot-water line 6, mud discharging area 7, sector disk 8, gas collecting tube 9, A wheels 10, B wheels 11, throat 12, splicing frame
13rd, baffle 14, check valve 15, material passing tube 16, sliding section 18 in the first downslide section 17, first, the second downslide section 19, flat segments 20,
Sliding section 22 in sliding section the 21, the 3rd on second.
Embodiment one：
A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering, including discoidal operation area,
As shown in Figure 1, operation area includes Disengagement zone 1, scrubbing section and mud discharging area 7 successively along its clockwise direction, three is sector, and
The ratio between radian of three is 6:5:1.Disengagement zone 1 is equipped with thick liquid bath, and thick liquid bath is communicated with vacuum extractor, in order to be taken out
Filter, thick liquid bath are also communicated with thick liquid pipe, and scrubbing section is equipped with washing lotion groove, and washing lotion groove is communicated with lotion pipeline, in actual production, thick liquid
Pipe and lotion pipeline are all extended under corresponding liquid level, and mud discharging area 7 is equipped with red mud groove.Wherein scrubbing section includes the first scrubbing section 2
With the second scrubbing section 3.
Discoidal filtering table is equipped with above whole operation area, filtering table is coaxial with operation area, filtering table lower end and thick liquid
Groove, the contact of washing lotion groove, form vacuum sealing system.As shown in Fig. 2, filtering table along the circumferential direction includes 24 sector disks 8, it is adjacent
Sector disk 8 between contact with each other but independently of each other, the upper surface of sector disk 8 is equipped with filter cloth, and filter cloth passes through fastening bolt pressure
Fasten on sector disk 8,135 ° of upset can occur when each sector disk 8 turns to mud discharging area 7, overturn then and back
To level, filter cloth upward, is rotated further to Disengagement zone 1.
Filtering disk center is equipped with shaft, and planet carrier is connected with shaft, is fixed with planet carrier positioned at filtering table lower end
Planetary gear, filtering table periphery are equipped with fixed gear ring, and gear ring is engaged with planetary gear, and shaft rotates, and drive filtering table to surround
Shaft revolves round the sun.
Distributing device is equipped with positioned at the top of Disengagement zone 1 above filtering table, clinker slurry charge pipe 4, mistake are equipped with above distributing device
The first hot-water line 6 is equipped with positioned at the first scrubbing section 2 and the top of the second scrubbing section 3 above filter disc, two first hot-water lines 6 lean on
The side of nearly Disengagement zone 1, filtering table top are equipped with the second hot-water line 5 positioned at the top of mud discharging area 7.First hot-water line 6 and the second heat
Water pipe 5 is set along the radial direction of filtering table, and parallel with filtering table.One is equipped with wherein on the tube wall of the first hot-water line 6 vertically
Washing hole is arranged, two rows of flushing holes are equipped with vertically on the tube wall of the second hot-water line 5.
In specific implementation process, clinker slurry is starched charge pipe 4 by clinker and is added to the distributing device positioned at the top of Disengagement zone 1
On, when sector disk 8 is located at below distributing device, clinker slurry is fallen on sector disk 8, and is uniformly spread out on sector disk 8, is made ripe
Slurry is covered with whole sector disk 8, and is filtered by vacuum.When sector disk 8 turns to the first scrubbing section 2, the first hot-water line 6 is right
Filter cake on sector disk 8 carries out first time flushing, and carries out vacuum and drain., should when sector disk 8 turns to the second scrubbing section 3
First hot-water line 6 in region carries out second to the filter cake on sector disk 8 and rinses, and carries out vacuum and drain.When sector disk 8 continues
When turning to mud discharging area 7, upset takes place in sector disk 8, carries out filter cake discharging, the as last red mud of the material drawn off, outer row
Washing and filter pressing is carried out to filter press station, sector disk 8 is first to overturn 135 °, then 135 ° of reverse flip when overturning, and returns to reset condition, weight
The new charging zone for entering to Disengagement zone 1, when carrying out discharging in mud discharging area 7, the second hot-water line 5 of the top of mud discharging area 7 can be to sector
Disk 8 is washed away, beneficial to discharging.
Sector disk 8 realizes that the structure and mode that rotate and overturn are：Turntable is equipped with below filtering table, is rotatablely connected on turntable
There is planetary gear, planetary gear is connected with motor, and turntable periphery is equipped with gear ring, and planetary gear is engaged with gear ring, each is fan-shaped
Disk 8 is rotatablely connected in planet carrier, its center line rotated is the angular bisector of sector disk 8.Planetary gear rotation can be along
Gear ring moves, and drives sector disk 8 to revolve round the sun around the center of filtering table.
The periphery that mud discharging area 7 is located at filtering table is equipped with upset track, as shown in figure 5, the public affairs of the upset track along filtering table
Turn direction includes sliding section 18 in the first downslide section 17, first, the second downslide section 19, sliding section 21 in flat segments 20, second, the successively
Sliding section 22 on three, is interruption in the horizontal between sliding section 18 in the first downslide section 17 and first, between other adjacent sections
It is continuous in transverse direction, equivalent in the same coordinate system, its abscissa is identical.Wherein, along the revolution direction of filtering table,
First downslide section 17 tilts down, and the first section of admiring the beauty of flowers is inclined upwardly, and the second downslide section 19 tilts down, and flat segments 20 are level
Shape, sliding section 21 is inclined upwardly on second, and sliding section 22 is inclined upwardly on the 3rd, and the starting point of the first downslide section 17, sliding section on first
18 starting point, the terminal of the second downslide section 19, the starting point of sliding section 21 on second, the terminal of sliding section 22 is located at same level on the 3rd
Face, in addition to flat segments 20, all cunning sections are arc-shaped.
The periphery center of each sector disk 8 is equipped with strut, as shown in figure 4, strut extends to both sides, and is respectively equipped with A wheels
10 and B takes turns 11, A wheels 10 and is located at rear end, and B wheels 11 are located at front end, and the height that B is taken turns residing for 11 in the vertical directions is higher than A wheels 10.
With the revolution of sector disk 8, B wheels 11 are hanging, and A wheels 10 enter the first downslide section 17, and sector disk 8 starts to tilt, and
With revolution, B wheels 11 enter to sliding section 18 on first, and when B wheels 11 move to the vertex of sliding section 18 on first, sector disk 8 is in perpendicular
Straight state；Continue to revolve round the sun, roller B is moved in the second downslide section 19, until moving to the minimum point of the second downslide section 19, at this time
Sector disk 8 overturns 135 °, keeps the state, and when B wheels 11 move to the terminal of flat segments 20, sector disk 8 starts opposite direction and turns
It is dynamic, back overturn, when B wheels 11 move to the vertex of sliding section 21 on second, sector disk 8 is in vertical state, continues to revolve round the sun, A wheels
10 enter to sliding section 22 on the 3rd, when A wheels 10 move to the vertex of sliding section 22 on the 3rd, 8 returning of sector disk to horizontality.
Embodiment two：
On the basis of embodiment one, the vacuum type filtering that turns over for being used for the production of red mud alumina by sintering of the present embodiment
Device, further comprises gas collecting tube 9, and gas collecting tube 9 is located at the top of filtering table, for collecting the steam above filtering table, wherein, collection
One end of tracheae 9 is connected with washing lotion groove, and thus the steam above filtering table is introduced in washing lotion groove, to the washing lotion in washing lotion groove
A degree of heat temperature raising is carried out, realizes the recycling of steam heat.
The one end of gas collecting tube 9 away from the second hot-water line 5 is suction end, for the steam at the scene of preferably collecting, suction end
Place is additionally provided with the air-suction cover towards filtering table.
Embodiment three：
On the basis of embodiment two, the vacuum type filtering that turns over for being used for the production of red mud alumina by sintering of the present embodiment
In device, backgauge unit is equipped with the downside of the outboard end of the second hot-water line 5, as shown in figure 3, the backgauge unit includes baffle 14,
The lower end of baffle 14 is equipped with splicing frame 13, and the inner side of splicing frame 13 is contacted with filtering table, but does not influence the rotation of sector disk 8.
The outer lower portion of splicing frame 13 is communicated with material passing tube 16, and check valve 15 of the outlet towards outside is equipped with material passing tube 16.In addition, collection
The middle part tube wall of tracheae 9 is connected with material passing tube 16, and gas collecting tube 9 is located at the connectivity part and is equipped with throat 12, and throat 12 is this position
Internal diameter diminish suddenly, be less than the position of both sides.Negative-pressure air fan is equipped with gas collecting tube 9 between throat 12 and suction end.
In the actual production process, the hot water impact of the second hot-water line 5 can sputter on sector disk 8, especially exist
Sector disk 8 overturn to it is vertical when, hot water is flushed on the side of sector disk 8, and the degree of sputtering can be bigger.Hot water washes away generation
On the one hand sputtering can waste water source, the operating environment at scene on the other hand can be caused severe in the extreme, but also can be to scene
Operating personnel impacts, especially the higher water of temperature.
And the backgauge unit in the present embodiment is just used to stop the water sputtered out, and it is collected in splicing frame 13.
Wherein backgauge unit is arranged on the outside of filtering table, and for the inner side of filtering table is arranged on, it will not hinder sector disk 8
Upset.And if directly set a baffle 14 in the outside of filtering table, outwards sputtering the material being obstructed again can be along baffle
14 flow downward to outside filtering table, still can influence site environment and cause the waste of material, therefore be set in the present embodiment
Splicing frame 13, the material of filtering table is sputtered for receiving, and the inner side of splicing frame 13 contacts with filtering table, to avoid material
Flowed downward by the gap between splicing frame 13 and filtering table.
And the inside air-breathing under the action of negative-pressure air fan of gas collecting tube 9, the gas of suction are entered in washing lotion groove, when air-flow passes through
When crossing throat 12, according to the principle of Venturi tube, negative pressure can be produced, forms an adsorption capacity, under the action of the adsorption capacity, led to
Check valve 15 in expects pipe 16 is opened, and the material in splicing frame 13 can be entered in gas collecting tube 9 by material passing tube 16, and with gas
Stream is entered in washing lotion groove, on the one hand avoids hot water splashes, is influenced the environment of operation field, is on the other hand reduced water resource
Waste.
In addition, in order to avoid a small amount of red mud sputtered out from sector disk 8 is entered in washing lotion groove, it is close in material passing tube 16
One piece of filter plate of end set of splicing frame 13, to stop to red mud.
Outside described in the present embodiment refers both to the side away from filtering disk center.
Claims (10)
- A kind of 1. vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering, it is characterised in that：Including disc Operation area, operation area along the circumferential direction includes Disengagement zone, scrubbing section and mud discharging area successively, and three regions are sector, separation Area is equipped with thick liquid bath, and scrubbing section is equipped with washing lotion groove, and mud discharging area is equipped with red mud groove, and the thick liquid bath is equipped with vacuum extractor；It is whole Rotated above a operation area and be equipped with discoidal filtering table, filtering table is coaxial with operation area, and filtering table includes at least several phases Mutually contact and mutually independent sector disk, are removably connected with filter cloth on sector disk, each sector disk turns to equal during mud discharging area Discharging can be overturn；Clinker slurry feed pipe is equipped with positioned at the top of Disengagement zone above the filtering table, filtering table top is positioned at washing The first hot-water line is equipped with above area.
- 2. the vacuum type filtration apparatus that turns over according to claim 1 for the production of red mud alumina by sintering, its feature It is：Above the filtering table the second hot-water line is equipped with above mud discharging area.
- 3. the vacuum type filtration apparatus that turns over according to claim 2 for the production of red mud alumina by sintering, its feature It is：Top above the Disengagement zone positioned at filtering table is equipped with distributing device.
- 4. the vacuum type filtration apparatus that turns over according to claim 3 for the production of red mud alumina by sintering, its feature It is：The scrubbing section includes the first scrubbing section and the second scrubbing section, both are equipped with the first hot water close to the side of Disengagement zone Pipe.
- 5. the vacuum type filtering dress that turns over for being used for the production of red mud alumina by sintering according to claim 1-4 any one Put, it is characterised in that：Second hot-water line is set along the radial direction of filtering table, and the tube wall of the second hot-water line is equipped with multiple baths Hole.
- 6. the vacuum type filtration apparatus that turns over according to claim 5 for the production of red mud alumina by sintering, its feature It is：The multiple flushing hole is set along the axial direction of the second hot-water line in two rows of.
- 7. the vacuum type filtration apparatus that turns over according to claim 6 for the production of red mud alumina by sintering, its feature It is：The Disengagement zone, scrubbing section, the ratio between the radian of mud discharging area are 6：5：1.
- 8. the vacuum type filtration apparatus that turns over for being used for the production of red mud alumina by sintering according to claim 6 or 7, it is special Sign is：The gas collecting tube for being used for collecting steam above filtering table is equipped with above the filtering table.
- 9. the vacuum type filtration apparatus that turns over according to claim 8 for the production of red mud alumina by sintering, its feature It is：The gas collecting tube is connected with washing lotion groove.
- 10. the vacuum type filtration apparatus that turns over according to claim 9 for the production of red mud alumina by sintering, its feature It is：The suction end of the gas collecting tube is located at the overcentre of filtering table, and air-suction cover is equipped with suction end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711481045.5A CN107986307A (en) | 2017-12-29 | 2017-12-29 | A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711481045.5A CN107986307A (en) | 2017-12-29 | 2017-12-29 | A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering |
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| CN107986307A true CN107986307A (en) | 2018-05-04 |
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|---|---|---|---|
| CN201711481045.5A Pending CN107986307A (en) | 2017-12-29 | 2017-12-29 | A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering |
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| CN (1) | CN107986307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111606390A (en) * | 2020-06-03 | 2020-09-01 | 张家港市欧微自动化研发有限公司 | Sewage treatment device |
| CN114028865A (en) * | 2021-10-28 | 2022-02-11 | 中信重工机械股份有限公司 | Double-blowing system for distribution head of vacuum disc type filter |
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Application publication date: 20180504 |