CN205109301U - Recovery unit of RKEF technology ferronickel rotary kiln flue gas - Google Patents
Recovery unit of RKEF technology ferronickel rotary kiln flue gas Download PDFInfo
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- CN205109301U CN205109301U CN201520878966.5U CN201520878966U CN205109301U CN 205109301 U CN205109301 U CN 205109301U CN 201520878966 U CN201520878966 U CN 201520878966U CN 205109301 U CN205109301 U CN 205109301U
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- dust
- filter bag
- flue gas
- distinguished
- dust removal
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Abstract
The utility model discloses a recovery unit of RKEF technology ferronickel rotary kiln flue gas, include dust absorption pipeline, fan cooler and complex dust collector, during fan cooler was inputed the high temperature flue gas to the dust absorption pipeline, complex dust collector included that electric bag of dust removal is distinguished, the dust removal of first filter bag is distinguished and the dust removal of second filter bag is distinguished, and the dust removal of second filter bag is distinguished the setting and is distinguished and be connected with the fan in the below that the dust removal of first filter bag was distinguished, second filter bag dust removal, is equipped with the chimney above the fan, the utility model discloses a combined type dust collector, the flue gas that contains the dust passes through electricity bag dust removal district earlier, can collect a large amount of dust, then the flue gas loops through first filter bag dust removal district and the dust removal of second filter bag is distinguished, will remain dust clean up, has improved the dust collection efficiency, guarantees by the cleanliness of the flue gas of atmospheric dilution.
Description
Technical field
The utility model relates to a kind of device of RKEF technique, is specifically related to a kind of retracting device of RKEF technique ferronickel rotary kiln flue gas.
Background technology
Utilize lateritic nickel ore to refine rotary kiln (RK)-mineral hot furnace (EF) technology of ferronickel for raw material smelting, be called for short RKEF technique.RKEF mature technology, equipment are simple and easy to control, production efficiency is high, accept by increasing enterprise.
The effect of rotary kiln in whole RKEF method flow process mainly contains:
(1) lateritic nickel ore surface moisture complete evaporation is made;
(2) crystallization water in lateritic nickel ore is removed, i.e. scaling loss.
(3) oxide of iron, nickel and cobalt in prereduction reactive moieties reduction ore.
(4) lateritic nickel ore temperature raised, calcining releases temperature between 700 ~ 1000 degrees Celsius.
Containing a lot of dust in the flue gas of rotary kiln afterbody, chimney is utilized directly to discharge, very serious to air pollution, such as, so often need to carry out dust recovery to tail gas, existing cleaner, mechanical type cleaner, wet-scrubbing equipment, electrostatic dust collection equipment and bag-type dust collecting equipment etc., often high temperature can not be born, meanwhile, single cleaner efficiency of dust collection is not high, and flue gas can not well be purified.
Utility model content
For the problems referred to above, the utility model provides a kind of retracting device of RKEF technique ferronickel rotary kiln flue gas, its object is to: utilize compound dust-collection device, carries out dust recovery to rotary kiln exhaust gas, efficiency of dust collection is improved, good dust removing effects can be reached.
Technical solution of the present utility model:
A kind of retracting device of RKEF technique ferronickel rotary kiln flue gas, comprise dust sucting pipeline, air cooling equipment and compound dust-collection device, high-temperature flue gas is input in air cooling equipment by described dust sucting pipeline, it is characterized in that: described compound dust-collection device comprises electric bag dedusting area, the first filter bag dedusting area and the second filter bag dedusting area, described second filter bag dedusting area is arranged on the below of the first filter bag dedusting area, described second filter bag dedusting area is connected with blower fan, is provided with chimney above described blower fan.
Dust-precipitator is provided with below described second filter bag dedusting area.
Be provided with mixer selector valve between described air cooling equipment and compound dust-collection device, guarantee enters the temperature limiting of deduster within the specific limits.
The beneficial effects of the utility model:
The utility model is by combined type dedusting device, flue gas containing dust is first by electric bag dedusting area, a large amount of dust can be collected, then flue gas is successively by the first filter bag dedusting area and the second filter bag dedusting area, residue dust is cleaned out, improve efficiency of dust collection, ensure the cleannes being discharged into the flue gas of air.
Accompanying drawing explanation
Fig. 1: the utility model structural principle schematic diagram.
Wherein: 1 dust sucting pipeline 2 air cooling equipment 3 compound dust-collection device 3-1 electricity 3-2 first filter bag dedusting area 3-3 second filter bag dedusting area 4, bag dedusting area dust-precipitator 5 blower fan 6 chimney 7 mixer selector valve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further:
As shown in Figure 1, a kind of retracting device of RKEF technique ferronickel rotary kiln flue gas, comprise dust sucting pipeline 1, air cooling equipment 2 and compound dust-collection device 3, high-temperature flue gas is input in air cooling equipment 2 by described dust sucting pipeline 1, mixer selector valve 7 is provided with between described air cooling equipment 2 and compound dust-collection device 3, guarantee enters the temperature limiting of deduster within the specific limits, described compound dust-collection device 3 comprises electric bag dedusting area 3-1, first filter bag dedusting area 3-2 and the second filter bag dedusting area 3-3, described second filter bag dedusting area 3-3 is arranged on the below of the first filter bag dedusting area 3-2, dust-precipitator 4 is provided with below described second filter bag dedusting area 3-3, second filter bag dedusting area 3-3 is connected with blower fan 5, chimney 6 is provided with above described blower fan 5.
Concrete technological process:
The high-temperature flue gas that rotary kiln produces, dedusting main is imported through dust shield, temperature reaches 700 DEG C, enter air cooling equipment 2 to lower the temperature, purify through compound dust-collection device 3, the outlet of the electric bag dedusting area 3-1 of compound dust-collection device 3 is connected with the entrance of the first filter bag dedusting area 3-2, the outlet of the first filter bag dedusting area 3-2 is connected with the entrance of the second filter bag dedusting area 3-3, the outlet of the second filter bag dedusting area 3-3 is connected with dust-precipitator 4, enter blower fan 5 and enter air through exhaust chimney 6, dedusting main between air cooling equipment 2 and compound dust-collection device 3 adds mixer selector valve 7 lower the temperature, ensure that the temperature limiting entering deduster is in certain scope, dust under trapping is contained in dust-precipitator 4 and transports.
A large amount of dust can be collected in electric bag dedusting area 3-1 of the present utility model and the first filter bag dedusting area, and then reduce the dust concentration entering the first filter bag district 3-2 and improve efficiency of dust collection, second filter bag district 3-3 can effectively adsorb remaining minute dusts, reduce reentrainment of dust, extend cleaning cycle, extend life of bag filter, reduce dedusting overall resistance, improve the overall performance of deduster.
To sum up, the utility model accomplishes the end in view.
Claims (3)
1. the retracting device of a RKEF technique ferronickel rotary kiln flue gas, comprise dust sucting pipeline, air cooling equipment and compound dust-collection device, high-temperature flue gas is input in air cooling equipment by described dust sucting pipeline, it is characterized in that: described compound dust-collection device comprises electric bag dedusting area, the first filter bag dedusting area and the second filter bag dedusting area, described second filter bag dedusting area is arranged on the below of the first filter bag dedusting area, described second filter bag dedusting area is connected with blower fan, is provided with chimney above described blower fan.
2. the retracting device of a kind of RKEF technique ferronickel rotary kiln flue gas according to claim 1, is characterized in that: be provided with dust-precipitator below described second filter bag dedusting area.
3. the retracting device of a kind of RKEF technique ferronickel rotary kiln flue gas according to claim 1, is characterized in that: be provided with mixer selector valve between described air cooling equipment and compound dust-collection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878966.5U CN205109301U (en) | 2015-11-06 | 2015-11-06 | Recovery unit of RKEF technology ferronickel rotary kiln flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878966.5U CN205109301U (en) | 2015-11-06 | 2015-11-06 | Recovery unit of RKEF technology ferronickel rotary kiln flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205109301U true CN205109301U (en) | 2016-03-30 |
Family
ID=55564950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520878966.5U Expired - Fee Related CN205109301U (en) | 2015-11-06 | 2015-11-06 | Recovery unit of RKEF technology ferronickel rotary kiln flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205109301U (en) |
-
2015
- 2015-11-06 CN CN201520878966.5U patent/CN205109301U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20191106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |