CN106186010A - A kind of alumina decomposition system and alumina decomposition slot device intermediate temperature drop method - Google Patents
A kind of alumina decomposition system and alumina decomposition slot device intermediate temperature drop method Download PDFInfo
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- CN106186010A CN106186010A CN201610562512.6A CN201610562512A CN106186010A CN 106186010 A CN106186010 A CN 106186010A CN 201610562512 A CN201610562512 A CN 201610562512A CN 106186010 A CN106186010 A CN 106186010A
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- sleeve pipe
- liquor tank
- mother liquor
- filter
- mother solution
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- 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
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention relates to technical field of alumina production, it is provided that a kind of alumina decomposition system and alumina decomposition slot device intermediate temperature drop method.Wherein, alumina decomposition system includes filter, the decomposer device being connected with filter, the mother liquor tank being connected with filter, and for carrying out the heat exchanger of heat exchange between mother solution and seminal fluid；Two end decomposers of decomposer device, and the katolysis groove being connected between two end decomposers；Multiple continuous print katolysis grooves all include extraction pipe, and are set in outside described extraction pipe and the sleeve pipe coaxial with described extraction pipe；The entrance of described sleeve pipe is connected with the outlet of described mother liquor tank, and the outlet of described sleeve pipe is connected with described heat exchanger.The program uses mother solution to cool down the slip of decomposer, thus is transferred in the middle of mother solution by the heat carried in slip.Need to carry out hyperthermic treatment due to mother solution self again, therefore obtained effective utilization after the transfer of the heat in slip, it is to avoid heat loss.
Description
Technical field
The present invention relates to technical field of alumina production, particularly relate to a kind of alumina decomposition system and aluminum oxide decomposer
Device intermediate temperature drop method.
Background technology
Alumina decomposition slot device generally comprises the decomposer of multiple series connection, and in order to realize preferable discomposing effect, past
Cooling process is carried out toward needing the multiple decomposers (katolysis groove 1) to middle.Refer to Fig. 1, owing to each is positioned at centre
Decomposer cool principle all as, therefore this figure only provides the cool principle schematic diagram of one of them decomposer, specifically:
Decomposer is provided with extraction pipe 2, and outside the extraction pipe 2 of decomposer, is additionally provided with the sleeve pipe 102 being coaxial therewith, described sleeve pipe
Outlet bottom 102 is connected with circulating water pool 3 pipeline by water circulating pump 2, and the water inlet at sleeve pipe 102 top and recirculated water
Pond 3 pipeline connects.Wherein, circulating water pool 3 can connect with cooling tower 4, thus by cooling tower 4 to the water in circulating water pool 3
Carry out heat release.
Additionally, also know that from Fig. 1, one of them outlet of filter 5 and above-mentioned decomposer connect, and another outlet depends on
Secondary connection has gas-liquid separator 6, taper mother liquor tank 7, cylindricality mother liquor tank 8 and mother solution pump 5.
For heat drops in the first order decomposer in above-mentioned alumina decomposition slot device intermediate temperature drop technology, often produce 1 ton
Aluminium oxide, it needs the recirculated water of 5.71 tons to be circulated, and the upper temperature difference between water and circulating backwater of circulation is 10 DEG C.Logical
Cross calculating to find, if all discharged into the atmosphere by cooling tower 4 by the heat absorbed from slip, then produce 1 ton
During aluminium oxide, its loss caused is 6.28 ten thousand yuan, thus the alumina producer year loss 628.28 ten thousand of annual capacity 100 ton
Unit.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to: a kind of alumina decomposition system and alumina decomposition slot device intermediate temperature drop method are provided,
The problem solving to use recirculated water that decomposer cooling causes heat loss in prior art.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of alumina decomposition system, including filter, with described
The decomposer device that filter connects, the mother liquor tank being connected with described filter, and for changing between mother solution and seminal fluid
The heat exchanger of heat；Described decomposer device includes two end decomposers, and is connected between two described end decomposers
Katolysis groove；Katolysis groove described in multiple continuous print all includes extraction pipe, and be set in outside described extraction pipe and
The sleeve pipe coaxial with described extraction pipe；The entrance of described sleeve pipe is connected with the outlet of described mother liquor tank, the outlet of described sleeve pipe with
Described heat exchanger connects.
Preferably, described mother liquor tank includes taper mother liquor tank and the cylindricality mother liquor tank being sequentially connected with；Described filter and institute
The entrance stating taper mother liquor tank connects, and the entrance of described sleeve pipe is connected with the outlet of described cylindricality mother liquor tank.
Preferably, it is provided with mother solution pump between entrance and the described taper mother liquor tank of described sleeve pipe.
Preferably, it is provided with gas-liquid separation unit in described filter.
Preferably, described filter is vertical-disk filter.
Preferably, described heat exchanger is plate type heat exchanger.
Preferably, the quantity of the described katolysis groove being provided with described sleeve pipe is six.
The present invention also provides for a kind of alumina decomposition slot device intermediate temperature drop method, comprises the following steps:
S1, be positioned in alumina decomposition slot device centre multiple continuous print decomposers extraction pipe outside sleeve pipe is set；
S2, the mother solution being filtrated to get by filter are injected in mother liquor tank removal floating material；
S3, the mother solution obtained in S2 is injected in sleeve pipe, and makes the slip of high temperature and the mother solution of low temperature carry out heat exchange；
S4, the mother solution after heat exchange is injected into it is connected with the heat exchanger of seminal fluid and seminal fluid carries out heat exchange.
(3) beneficial effect
Technical scheme has the advantage that the present invention provides a kind of alumina decomposition system, including filter,
The decomposer device being connected with described filter, the mother liquor tank being connected with described filter, and between mother solution and seminal fluid
Carry out the heat exchanger of heat exchange；Two end decomposers of described decomposer device, and be connected on two described end decomposers it
Between katolysis groove；Katolysis groove described in multiple continuous print all includes extraction pipe, and is set in outside described extraction pipe
And the sleeve pipe coaxial with described extraction pipe；The entrance of described sleeve pipe is connected with the outlet of described mother liquor tank, the outlet of described sleeve pipe
It is connected with described heat exchanger.The program uses mother solution to cool down the slip of decomposer, thus the heat that will carry in slip
Transfer in the middle of mother solution.Need to carry out hyperthermic treatment due to mother solution self again, therefore obtain after the transfer of the heat in slip
Effective utilize, it is to avoid heat loss.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the alumina decomposition system of prior art；
Fig. 2 is the structural representation of the alumina decomposition system of the application；
In figure: 1, katolysis groove；101, extraction pipe；102, sleeve pipe；2, water circulating pump；3, circulating water pool；4, cooling tower；
5, filter；6, gas-liquid separator；7, taper mother liquor tank；8, cylindricality mother liquor tank；9, mother solution pump.
Detailed description of the invention
With embodiment, embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.Following example are used for
The present invention is described, but can not be used for limiting the scope of the present invention.
In describing the invention, it should be noted that term " " center ", " longitudinally ", " laterally ", " on ", D score,
Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or dark
Show relative importance.
Referring to Fig. 2, the alumina decomposition system of the present embodiment, including filter 5, be connected with described filter 5 divides
Solve slot device, the mother liquor tank being connected with described filter 5, and be used for carrying out between mother solution and seminal fluid the heat exchanger of heat exchange.
Wherein, decomposer device includes two end decomposers, and is connected between two described end decomposers
Katolysis groove 1.It should be noted that " end decomposer " and " katolysis groove 1 " is to distinguish the decomposition being positioned at two ends
Groove and the decomposer being positioned at centre.
Owing to, in decomposer device, the temperature of the decomposer of rear and front end is typically made without cooling and processes, and only has
The decomposer being positioned at centre needs to process, and therefore, in the present embodiment, katolysis groove 1 described in multiple continuous print is respectively provided with set
Pipe 102.Specifically, sheathed sleeve pipe 102 outside the extraction pipe 2 in decomposer, and make sleeve pipe 102 and extraction pipe 2 coaxial.Excellent
Selecting and start number from the position near filter 5, the 3rd katolysis groove 1 all includes above-mentioned carrying to the 8th katolysis groove 1
Material pipe 2 and sleeve pipe 102.
Certainly, based on concrete production technology, including above-mentioned extraction pipe 2 and the katolysis groove 1 of sleeve pipe 102 quantity and
Position all can adjust accordingly, thus reaches optimal technological effect.Such as, including in above-mentioned extraction pipe 2 and sleeve pipe 102
Between the quantity of decomposer 1 can also be five or seven.Additionally, extraction pipe can use disclosed in any prior art
Form, does not repeats.
If it should be noted that sleeve pipe 102 and extraction pipe 2 coaxial main are for the ease of carrying out the slip in extraction pipe 2
Cooling, it is ensured that the mother solution in sleeve pipe 102 and the slip in extraction pipe 2 carry out abundant heat exchange.In the case of satisfied cooling requires,
It is not required for sleeve pipe 102 and extraction pipe 2 is the most coaxial.
Additionally, for the ease of the flow velocity of mother solution in sleeve pipe 102 is controlled, thus ensure to carry out between mother solution and slip
Sufficiently heat exchange, the entrance of sleeve pipe is preferably arranged on the bottom of self by the present embodiment, and the outlet of sleeve pipe is arranged on certainly
The top of body, thus the flow velocity of mother solution can be controlled by power unit.
Of course it is not excluded the entrance of sleeve pipe 102 is arranged on the top of self and the outlet of sleeve pipe 102 is arranged on self the end
The situation of end.And in the case of this kind, but the most necessarily assist the pipeline to sleeve pipe 102 to do suitable design, so that
In pipeline 102, flow velocity scalable or the flow velocity of mother solution will not be the fastest.On the basis of the above, the cooling being passed through in sleeve pipe 102
Medium is the mother solution flowed out in mother liquor tank.
The mother solution being different from prior art in mother liquor tank is passed through heat exchanger and seminal fluid carries out heat exchange, in the present embodiment,
Before mother solution and seminal fluid carry out heat exchange, first mother solution is passed through in sleeve pipe 102 and slip carries out heat exchange.
In the present embodiment, mother liquor tank includes taper mother liquor tank 7 and the cylindricality mother liquor tank 8 being sequentially connected with.Wherein, taper mother solution
The entrance of groove 7 connects filter 5, the mother solution flowed out is removed floating material and processes so that floating material is deposited in filter 5
The bottom of taper mother liquor tank 7.The mother solution follow-up entrance cylindricality mother liquor tank 8 of taper mother liquor tank 7 upper end.Obviously, mother liquor tank
Form is not limited by the present embodiment, it is also possible to use the version that other is feasible.
On this basis, in order to the mother solution in cylindricality mother liquor tank 8 is injected in sleeve pipe 102, at cylindricality mother liquor tank 8 and set
Mother solution pump 9 it is provided with between pipe 102.Mother solution is pumped into by mother solution pump 9 from the entrance of sleeve pipe 102, carries out the slip in extraction pipe 2
Cooling, and finally flow out from the outlet of sleeve pipe 102.Mother solution after heat exchanging, is injected in heat exchanger and seminal fluid changes
Heat.
From the foregoing, it will be observed that the entrance of sleeve pipe 102 is connected with the outlet of mother liquor tank, the outlet of sleeve pipe 102 is connected with heat exchanger.
It should be understood that, the quantity of sleeve pipe 102 not only one, excellent between the sleeve pipe 102 of multiple katolysis grooves 1
Choosing uses the form of series connection.In the case of this kind, it is assumed that N number of sleeve pipe 102 is connected, then the outlet of mother liquor tank and first sleeve pipe
The entrance of 102 connects, and heat exchanger is connected with the outlet of n-th sleeve pipe 102.Namely above-mentioned " entrance of sleeve pipe 102 and mother liquor tank
Outlet connects, and the outlet of sleeve pipe 102 is connected with heat exchanger ", it is not required that the entrance of all sleeve pipes 102 directly connects with mother liquor tank
Connecing, the most do not require that the outlet of all sleeve pipes 102 and heat exchanger are directly connected to, it also includes that certain sleeve pipe 102 is by other sleeve pipe
102 and mother liquor tank, heat exchanger connect situation.
In the present embodiment, in order to ensure the heat transfer effect that the mother solution of outflow is follow-up from sleeve pipe 102, preferred heat exchanger is plate
Formula heat exchanger.Additionally, the kind of filter 5 is generally vertical-disk filter 5.
It should be noted that from fig. 2 it can be seen that be provided with gas-liquid separation between filter 5 and taper mother liquor tank 7
Device 6.But in prior art, in order to realize gas-liquid separation, it is also possible to arrange gas-liquid separation unit in filter 5, thus not
Need additionally to be separately provided a gas-liquid separator 6.
Based on above-mentioned alumina decomposition system, the present embodiment also provides for a kind of alumina decomposition slot device intermediate temperature drop side
Method, comprises the following steps:
S1, the extraction pipe 2 of the multiple continuous print decomposers being positioned at centre in decomposer device mentioned above are arranged outward
Sleeve pipe 102；
S2, the mother solution that filter 5 is filtrated to get is injected in mother liquor tank removal floating material；
S3, the mother solution obtained in S2 is injected in sleeve pipe 102, and the slip of high temperature and the mother solution of low temperature are changed
Heat；
S4, the mother solution after heat exchange is injected into it is connected with the heat exchanger of seminal fluid and seminal fluid carries out heat exchange.
In the present embodiment, use mother solution that the slip of decomposer is cooled down, thus the heat transfer will carried in slip
In the middle of mother solution.Need to carry out hyperthermic treatment due to mother solution self again, therefore obtained effectively after the transfer of the heat in slip
Utilization, it is to avoid heat loss.
Certainly it should be noted that except the present embodiment using the mother solution in mother liquor tank the slip in extraction pipe 2 is entered
Outside row heat exchange, it is also possible to the mother solution obtained in filter 5 is passed directly in sleeve pipe 102, and again after heat exchange again by mother
Liquid is passed in mother liquor tank removal floating material.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this
Bright be described in detail, it will be understood by those within the art that, technical scheme is carried out various combination,
Amendment or equivalent, without departure from the spirit and scope of technical solution of the present invention, all should contain the right in the present invention and want
Ask in the middle of scope.
Claims (9)
1. an alumina decomposition system, including filter, the decomposer device being connected with described filter, with described filter
The mother liquor tank connected, and for carrying out the heat exchanger of heat exchange between mother solution and seminal fluid；It is characterized in that, described decomposer device
Including two end decomposers, and it is connected on the katolysis groove between two described end decomposers；Multiple continuous print institutes
State katolysis groove and all include extraction pipe, and be set in outside described extraction pipe and the sleeve pipe coaxial with described extraction pipe；Institute
The outlet of the entrance and described mother liquor tank of stating sleeve pipe is connected, and the outlet of described sleeve pipe is connected with described heat exchanger.
Alumina decomposition system the most according to claim 1, it is characterised in that described mother liquor tank includes the cone being sequentially connected with
Shape mother liquor tank and cylindricality mother liquor tank；Described filter is connected with the entrance of described taper mother liquor tank, the entrance of described sleeve pipe and institute
The outlet stating cylindricality mother liquor tank connects.
Alumina decomposition system the most according to claim 2, it is characterised in that the entrance of described sleeve pipe is female with described taper
Mother solution pump it is provided with between liquid bath.
Alumina decomposition system the most according to claim 1, it is characterised in that be provided with gas-liquid separation in described filter
Unit.
Alumina decomposition system the most according to claim 1, it is characterised in that described filter is vertical-disk filter.
Alumina decomposition system the most according to claim 1, it is characterised in that described heat exchanger is plate type heat exchanger.
Alumina decomposition system the most according to claim 1, it is characterised in that the described centre being provided with described sleeve pipe is divided
The quantity solving groove is six.
Alumina decomposition system the most according to claim 1, it is characterised in that the entrance of described sleeve pipe is positioned at bottom, institute
The outlet stating sleeve pipe is positioned at top.
9. an alumina decomposition slot device intermediate temperature drop method, it is characterised in that comprise the following steps:
S1, be positioned in alumina decomposition slot device centre multiple continuous print decomposers extraction pipe outside sleeve pipe is set；
S2, the mother solution being filtrated to get by filter are injected in mother liquor tank removal floating material；
S3, the mother solution obtained in S2 is injected in sleeve pipe, and makes the slip of high temperature and the mother solution of low temperature carry out heat exchange；
S4, the mother solution after heat exchange is injected into it is connected with the heat exchanger of seminal fluid and seminal fluid carries out heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562512.6A CN106186010A (en) | 2016-07-15 | 2016-07-15 | A kind of alumina decomposition system and alumina decomposition slot device intermediate temperature drop method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610562512.6A CN106186010A (en) | 2016-07-15 | 2016-07-15 | A kind of alumina decomposition system and alumina decomposition slot device intermediate temperature drop method |
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| CN106186010A true CN106186010A (en) | 2016-12-07 |
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| CN201610562512.6A Pending CN106186010A (en) | 2016-07-15 | 2016-07-15 | A kind of alumina decomposition system and alumina decomposition slot device intermediate temperature drop method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946774A (en) * | 2017-05-24 | 2018-12-07 | 沈阳铝镁设计研究院有限公司 | A kind of high-efficiency and energy-saving type kind divides intermediate temperature drop heat-exchange system |
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| GR3015504T3 (en) * | 1990-07-20 | 1995-06-30 | Alcan Int Ltd | Improved precipitation vessel. |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108946774A (en) * | 2017-05-24 | 2018-12-07 | 沈阳铝镁设计研究院有限公司 | A kind of high-efficiency and energy-saving type kind divides intermediate temperature drop heat-exchange system |
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Application publication date: 20161207 |