CN207527596U - Electrolytic aluminium waste slot liner innocuity disposal system - Google Patents
Electrolytic aluminium waste slot liner innocuity disposal system Download PDFInfo
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- CN207527596U CN207527596U CN201721638972.9U CN201721638972U CN207527596U CN 207527596 U CN207527596 U CN 207527596U CN 201721638972 U CN201721638972 U CN 201721638972U CN 207527596 U CN207527596 U CN 207527596U
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Abstract
The utility model discloses a kind of electrolytic aluminium waste slot liner innocuity disposal system, including feeder, heat resolve stove, preheating apparatus, exhaust gas cleaner；Heat resolve stove include furnace body, burner, in the furnace body be equipped with burner hearth, its be equipped with heat outlet, feed inlet, discharge gate；Preheating apparatus includes housing, heat exchange chamber, spiral materail tube, the spiral materail tube upper end connects feed(raw material)inlet, lower end connects pre- hot material outlet, and the pre- hot material outlet is connected to feed inlet via powder conveying pump, the hot gas inlet of connection heat outlet is equipped in the lower part of heat exchange chamber, top sets the low temperature exhaust gas outlet of connection exhaust gas cleaner.The recycling for realizing each constituents in aluminium electroloysis waste lining of this system low energy consumption, and do not generate new pollutant, environmental-friendly, the problems such as waste lining solid waste of puzzlement world's aluminum electrolysis industry for many years is stacked or filled pollution environment, causes a large amount of waste of raw materials can effectively be solved.
Description
Technical field
The utility model is related to electrolytic aluminium solid waste be recycled technical field, and in particular to a kind of aluminium electrolytic tank without
Evilization processing system.
Background technology
Electrolytic aluminium belongs to important light non-ferrous metal industry, and aluminium is as important basic industries raw material, in national economy
In occupy very important status.Aluminum metal and aluminium are widely used in traffic, national defence, electric power, machinery, building, light industry, space flight
Etc. multiple industries, and with the continuous development of science and technology, the application of aluminium will more extensively, with national economic development, the common people
It lives closely bound up.Aluminium is obtained by Hall-Ai Lu cryolite-alumina fused salt electrolysis methods, i.e., based on ice crystal
For fluoride salt as flux, aluminium oxide is that molten matter forms multiphase electrolyte system, using carbon body as anode, molten aluminum as cathode,
After being passed through powerful direct current, at 950~970 DEG C, it is electrochemically reacted on the two poles of the earth in electrolytic cell.
At present, electrolytic aluminium factory handles waste using air storage or by the way of building cinder field landfill mostly, not only
A large amount of soils are occupied, and the soluble fluoride, the cyanide that wherein contain can also flow into rivers with rainwater, permeate the ground dirt
Soil and groundwater, surface water are contaminated, high risks are caused to ecological environment around, human health and animal and plant growth, destroys life
State environment influences Agro-ecology balance, makes crop production reduction.It is such harm be it is serious, long-term, irreversible, this with
Low input, high production, low consumption, few discharge are built, can be recycled, sustainable conservation-minded society disagrees.
Waste lining is commonly called as slag from delining, is the solid waste that aluminium cell is periodically discharged, and is to being removed during electrolytic cell overhaul
All waste and old inner lining materials general designation, mainly including cathode paste, refractory brick, insulating brick, Impervious Materials etc..Due to containing compared with Gao Shui
Flat fluoride and cyanide, waste lining belong to hazardous waste, are that country prohibites the I class waste arbitrarily abandoned.
Therefore, waste lining caused by aluminum electrolysis industry harmless treatment and comprehensive utilization be the task of top priority.
Invention content
The technical problem to be solved by the present invention is to provide it is a kind of low energy consumption, environment amenable electrolytic aluminium waste slot liner without
Evilization processing system, to realize that the recycling of waste lining recycles.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of electrolytic aluminium waste slot liner innocuity disposal system is designed, including feeder, heat resolve stove, pre-add hot charging
It puts, exhaust gas cleaner；The heat resolve stove includes furnace body, burner, and burner hearth, upper part are equipped in the furnace body
Equipped with heat outlet, feed inlet, bottom is equipped with corresponding discharge gate, and the burner provides heat energy for burner hearth；It is described
Preheating apparatus includes housing, the heat exchange chamber in housing, the spiral materail tube in the heat exchange chamber, the spiral
Materail tube upper end is connected to corresponding feed(raw material)inlet, and lower end is connected to corresponding pre- hot material outlet, and the pre- hot material outlet warp
The feed inlet of the thermal decomposition furnace is connected to by corresponding powder conveying pump, is equipped with described in connection in the lower part of the heat exchange chamber
The hot gas inlet of burner hearth heat outlet, top are equipped with the low temperature exhaust gas outlet for connecting the exhaust gas cleaner.
It is additionally provided with before the feeder and includes reducing mechanism, for being granular material by waste lining processing.
Corresponding finished product hopper is additionally provided with below the discharge gate of the heat resolve stove.
The feeder is bucket elevator.
The heat resolve stove is vertical cyclone furnace.
The furnace body includes furnace lining layer successively from the inside to the outside, plug draws fibrous layer containing chromium, steel plate.
Compared with prior art, the advantageous effects of the utility model are：
1. can realize the recycling of electrolyte high efficiency, high-purity using the utility model, and waste residue, waste water are not generated, give up
The pollutants such as gas, it is environmentally friendly.
Aluminium electroloysis waste lining is recycled 2. can be realized using this system, it is more effectively to solve puzzlement world's aluminum electrolysis industry
The problems such as waste lining solid waste in year is stacked or landfill pollutes environment, causes a large amount of waste of raw materials；
3. the reasonable setting of preheating apparatus, can make full use of waste heat, energy consumption is saved.
Description of the drawings
Fig. 1 is a kind of structure diagram of electrolytic aluminium waste cathode innocuity disposal system.
Wherein, 1 is heat resolve stove, and 2 be air intake, 3 is fuel gas inlet, 4 is heat outlet, 5 is feed inlet, 6 are
Preheating apparatus, 7 export for low temperature exhaust gas, and 8 be feed(raw material)inlet, and 9 be spiral materail tube, and 10 be bucket elevator, and 11 be preheating
Material outlet, 12 pump for powder conveying, and 13 be discharge gate, and 14 be finished product hopper, and 15 be exhaust purifier, and 16 be air-introduced machine, and 17 are
Air blower, 18 be hot gas inlet.
Specific embodiment
Illustrate specific embodiment of the present utility model, but the following example is only used with reference to the accompanying drawings and examples
It is described in detail the embodiment of the utility model, does not limit the scope of the utility model in any way.
Involved device in the examples below is then conventional products unless otherwise instructed.
Embodiment 1：A kind of electrolytic aluminium waste slot liner innocuity disposal system, referring to Fig. 1, including reducing mechanism, bucket lifting
Machine 6, heat resolve stove 1, preheating apparatus 6, exhaust gas cleaner, the exhaust gas cleaner include exhaust purifier 15, air inducing
Machine 16；Heat resolve stove 1 includes furnace body（Include furnace lining layer successively from the inside to the outside, plug draws fibrous layer containing chromium, steel plate）, burner
（It is not drawn into figure）, in the furnace body be equipped with burner hearth, upper part be equipped with heat outlet 4, feed inlet 5, bottom be equipped with pair
The discharge gate 13 answered, is provided with corresponding finished product hopper 14 below the discharge gate 13, and the burner provides heating for burner hearth
Energy；The preheating apparatus 6 includes housing, the heat exchange chamber in housing, the spiral material in the heat exchange chamber
Pipe 9,9 upper end of spiral materail tube are connected to corresponding feed(raw material)inlet 8, and lower end is connected to corresponding pre- hot material outlet 11,
And the pre- hot material outlet 11 is connected to the feed inlet 5 of the thermal decomposition furnace via corresponding powder conveying pump 12, is handed in the heat
The lower part for changing chamber is equipped with the hot gas inlet for connecting the burner hearth heat outlet 4, and top, which is equipped with, connects the exhaust purifier 15
Low temperature exhaust gas outlet 7.
The operate with method of above-mentioned electrolytic aluminium waste slot liner innocuity disposal system is as follows：
The waste refractory materials screened out from waste lining or useless Impervious Materials input reducing mechanism are crushed, via bucket elevator
10 are delivered to and state preheating apparatus 6, and 12 are pumped via powder conveying again after spiral materail tube 9 is gradually preheated to certain temperature
The heat resolve into heat resolve stove 1 is sent, maintains 1140-1160 DEG C of certain time of heating temperature, until useless resistance in waste lining
Fiery material, useless Impervious Materials, useless thickener and electrolyte are kept completely separate, and generate refractory raw material, Impervious Materials, carbon raw accordingly,
The heat exchange chamber that the high-temperature flue gas and high-temperature fluorination object gas that heat resolve stove generates enter preheating apparatus 6 carries out in advance raw material
After heat, low-temperature flue gas enters the exhaust gas cleaner processing rear no pollution discharge discharged, realize flue gas pollutant up to standard.
Embodiment 2：A kind of electrolytic aluminium waste slot liner innocuity disposal system, it is substantially the same manner as Example 1 referring to Fig. 1, it is different
Part is that heat resolve stove is vertical cyclone furnace.
The embodiment of the utility model is elaborated above in conjunction with drawings and examples, but the utility model
The above embodiment is not limited to, within the knowledge of a person skilled in the art, this can also not departed from
It changes or changes under the premise of utility model objective.
Claims (6)
1. a kind of electrolytic aluminium waste slot liner innocuity disposal system, which is characterized in that including feeder, heat resolve stove, pre-add
Thermal, exhaust gas cleaner；The heat resolve stove include furnace body, burner, in the furnace body be equipped with burner hearth, its
Top is equipped with heat outlet, feed inlet, and bottom is equipped with corresponding discharge gate, and the burner provides heat energy for burner hearth；
The preheating apparatus includes housing, the heat exchange chamber in housing, the spiral materail tube in the heat exchange chamber, described
Spiral materail tube upper end is connected to corresponding feed(raw material)inlet, and lower end is connected to corresponding pre- hot material outlet, and the pre- hot material goes out
Mouth is connected to the feed inlet of the thermal decomposition furnace via corresponding powder conveying pump, and connection is equipped in the lower part of the heat exchange chamber
The hot gas inlet of the burner hearth heat outlet, top are equipped with the low temperature exhaust gas outlet for connecting the exhaust gas cleaner.
2. electrolytic aluminium waste slot liner innocuity disposal system according to claim 1, which is characterized in that in the feeder
It is additionally provided with before and includes reducing mechanism, for being granular material by waste lining processing.
3. electrolytic aluminium waste slot liner innocuity disposal system according to claim 1, which is characterized in that in the heat resolve
Corresponding finished product hopper is additionally provided with below the discharge gate of stove.
4. electrolytic aluminium waste slot liner innocuity disposal system according to claim 1, which is characterized in that the feeder is
Bucket elevator.
5. electrolytic aluminium waste slot liner innocuity disposal system according to claim 1, which is characterized in that the heat resolve stove
For vertical cyclone furnace.
6. electrolytic aluminium waste slot liner innocuity disposal system according to claim 1, which is characterized in that the furnace body is by interior
To outside successively including furnace lining layer, plug drawing fibrous layer containing chromium, steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638972.9U CN207527596U (en) | 2017-11-30 | 2017-11-30 | Electrolytic aluminium waste slot liner innocuity disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638972.9U CN207527596U (en) | 2017-11-30 | 2017-11-30 | Electrolytic aluminium waste slot liner innocuity disposal system |
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| Publication Number | Publication Date |
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| CN207527596U true CN207527596U (en) | 2018-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390255A (en) * | 2019-11-01 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Activation shaft furnace and have its active carbon production system |
-
2017
- 2017-11-30 CN CN201721638972.9U patent/CN207527596U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390255A (en) * | 2019-11-01 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Activation shaft furnace and have its active carbon production system |
| CN112390255B (en) * | 2019-11-01 | 2022-08-16 | 中冶长天国际工程有限责任公司 | Activation shaft furnace and have its active carbon production system |
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