CN202254889U - Tail gas dust recycling and circulating device for calciner - Google Patents
Tail gas dust recycling and circulating device for calciner Download PDFInfo
- Publication number
- CN202254889U CN202254889U CN2011203757655U CN201120375765U CN202254889U CN 202254889 U CN202254889 U CN 202254889U CN 2011203757655 U CN2011203757655 U CN 2011203757655U CN 201120375765 U CN201120375765 U CN 201120375765U CN 202254889 U CN202254889 U CN 202254889U
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- tail gas
- heating pipe
- water tower
- calcining furnace
- dust
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Abstract
The utility model relates to the technical field of a dust recycling and circulating device, and particularly to a tail gas dust recycling and circulating device for a calciner. The tail gas dust recycling and circulating device for the calciner comprises the following components: a hot gas furnace, and a hot gas pipe which is communicated with the hot gas furnace. An automatic feeding mechanism is connected with the hot gas furnace and the hot gas pipe therebetween. A bottom end of the hot gas pipe is connected with a crushing chamber. The hot gas pipe is connected with a dust recycling device. A tail gas outlet of the hot gas pipe is connected with a material inlet of the dust recycling device. A material outlet of the dust recycling device is connected with the automatic feeding mechanism. The tail gas dust recycling and circulating device for the calciner has the following advantages: high dust removing effect, high tail gas dust recycling rate, low production cost and low environment pollution.
Description
Technical field
The utility model relates to dust and reclaims the EGR technical field, particularly relates to a kind of calcining furnace tail gas dust and reclaims EGR.
Background technology
Calcining furnace is a kind of high-temperature process that is used for, and makes the energy with natural gas, oil and electricity, is used for ironmaking, reclaims rare metal, and Catalyst Production is improved environment, produces the equipment of extraordinary chemicals, be widely used in metallurgy, chemical industry, iron and steel, etc. industry.Domestic calcining furnace in use produces a large amount of hot gas and dust, directly is discharged in the atmosphere and can produces very big pollution, and the calcining furnace of present domestic part can be provided with simple dedusting mechanism; But, can only remove the dust of fraction, poor filtration effect owing to be simple dedusting; Major part still can directly be discharged in the atmosphere or reject, not only environment is polluted, and can waste composition useful in the dust; Cause waste, be unfavorable for the reduction of production cost.
Summary of the invention
The purpose of the utility model is to avoid weak point of the prior art and provide a kind of dust-filtering effective, and the calcining furnace tail gas dust that can reclaim the dust recycle reclaims EGR.
The utility model is for realizing that above-mentioned purpose adopts following technical scheme.
Provide a kind of calcining furnace tail gas dust to reclaim EGR; Comprise heating furnace, the heating pipe that is communicated with heating furnace; Be connected with automatic feed mechanism between said heating furnace and the said heating pipe, the end of said heating pipe is connected with pulverizing chamber, and said heating pipe is connected with device for recovering powder; The tail gas outlet of said heating pipe is connected with the charging aperture of said device for recovering powder, and the discharging opening of said device for recovering powder is connected with said automatic feed mechanism.
Wherein, said device for recovering powder includes water film dust removal device, and the discharging opening of said water film dust removal device is connected with said automatic feed mechanism, is provided with blower unit between said heating pipe and the said water film dust removal device.
Wherein, Said water film dust removal device comprises first water tower and second water tower that the top is communicated with; Be respectively arranged with out sprinkler head in said first water tower and said second water tower and be crisscross arranged in the membranous disc that goes out sprinkler head below; The bottom of said first water tower offers charging aperture, and the bottom of said first water tower and said second water tower offers discharging opening respectively.
Wherein, be respectively arranged with at least two in said first water tower and said second water tower and go out sprinkler head and at least two group membranous discs.
Wherein, said membranous disc comprises at least two oblique fins that are fixed in the said water film dust removal device, and said oblique fin is staggered arranges.
Above, said device for recovering powder also includes settler, and said settler is arranged between said blower unit and the said water film dust removal device.
Wherein, said settler comprises at least two mud chambers that are communicated with successively.
Wherein, be provided with corrugated pipeline in each said mud chamber.
Wherein, Also include waste-heat recovery device; Said waste-heat recovery device includes ventilation duct and the heat-exchange tube that is built-in with heat-conducting medium; The tube wall of said ventilation duct and the tube wall of said heating pipe fit, and said heat-exchange tube is inserted in the tube wall joint place of said ventilation duct and heating pipe, and the two ends of said heat-exchange tube are exposed to the inner chamber of said heating pipe and the inner chamber of said ventilation duct respectively; The air inlet of said ventilation duct is provided with extractor fan, and the gas outlet of said ventilation duct is communicated with the air inlet of said heating furnace.
The beneficial effect of the utility model: a kind of calcining furnace tail gas dust reclaims EGR; Comprise heating furnace, the heating pipe that is communicated with heating furnace; Be connected with automatic feed mechanism between said heating furnace and the said heating pipe, the end of said heating pipe is connected with pulverizing chamber, and said heating pipe is connected with device for recovering powder; The tail gas outlet of said heating pipe is connected with the charging aperture of said device for recovering powder, and the discharging opening of said device for recovering powder is connected with said automatic feed mechanism; The utlity model has good dedusting effect, the tail gas dust rate of recovery is high and can be recycled the low and advantage low in the pollution of the environment of production cost.
Description of drawings
Utilize accompanying drawing that the utility model is described further, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model.
Fig. 1 is the structural representation that a kind of calcining furnace tail gas of the utility model dust reclaims the embodiment one of EGR.
Fig. 2 is the structural representation that a kind of calcining furnace tail gas of the utility model dust reclaims the embodiment two of EGR.
In Fig. 1 and Fig. 2, include:
1---heating furnace 2---heating pipe 3---ventilation duct
4---heat-exchange tube 5---extractor fan 6---automatic feed mechanisms
7---pulverizing chamber 8---blower unit 9---mud chambers
10---water film dust removal device.
The specific embodiment
In conjunction with following examples the utility model is further described.
Embodiment one
As shown in Figure 1; A kind of calcining furnace tail gas dust of present embodiment one reclaims EGR, comprises heating furnace 1, the heating pipe 2 that is communicated with heating furnace 1, is connected with automatic feed mechanism 6 between said heating furnace 1 and the said heating pipe 2; The end of said heating pipe 2 is connected with pulverizing chamber 7; Said heating pipe 2 is connected with device for recovering powder, and the tail gas outlet of said heating pipe 2 is connected with the charging aperture of said device for recovering powder, and the discharging opening of said device for recovering powder is connected with said automatic feed mechanism 6.
During use; Heating furnace 1 with air heat, utilizes hot-air that the raw material to be processed such as soil conditioner that are positioned in the heating pipe 2 are carried out drying through burning coal then, after calcining is accomplished; Soil conditioner gets into pulverizing chamber 7 and pulverizes, and carries out classification then and promptly makes finished product with packing; In the production process, be easy to generate the raw-material powder of a large amount of dust and soil, the tail gas outlet of heating pipe 2 increases device for recovering powder; Dust is carried out multiple filtration to be reclaimed; Make discarded originally tail gas dust reclaim use again, prevent that not only dust emission from arriving the atmosphere pollution environment, can also reclaim to automatic feed mechanism 6 recycles; Reduce production costs, the rate of recovery is high and low in the pollution of the environment.
The device for recovering powder of present embodiment includes water film dust removal device 10, and the discharging opening of said water film dust removal device 10 is connected with said automatic feed mechanism 6, is provided with blower unit 8 between said heating pipe 2 and the said water film dust removal device 10.The water film dust removal device 10 of present embodiment comprises first water tower and second water tower that the top is communicated with; Be respectively arranged with out sprinkler head in said first water tower and said second water tower and be crisscross arranged in the membranous disc that goes out sprinkler head below; The bottom of said first water tower offers charging aperture, and the bottom of said first water tower and said second water tower offers discharging opening respectively.
Tail gas and dust get into first water tower from the gas outlet of heating pipe 2 through charging aperture; Through the membranous disc that is crisscross arranged in first water tower; Be provided with out sprinkler head above the membranous disc, go out the constantly moisture film of water spray formation downwards of sprinkler head, the principle of utilizing the aqueous vapor convection current is dust and pernicious gas filtering-depositing in the tail gas of upwards walking; The part dust can be attached on the membranous disc through moistening membranous disc; Washed by water then, the dust that obtains and the mixture of water flow in the material pond of automatic feed mechanism 6 through discharging opening, help the circulation calcining and produce.The setting of second water tower is in order to increase tail gas and dust walking path in water tower, and secondary spraying makes the recovering effect of filtration and dust of tail gas better.Form moisture film through water spray and the thinner dust of particle diameter is further filtered and precipitate, and water can absorb pernicious gases such as carbon dioxide and sulfur dioxide in the tail gas, minimizing tail gas pollution.
Be respectively arranged with at least two in first water tower of present embodiment and said second water tower and go out sprinkler head and at least two group membranous discs.As preferred embodiment; Be respectively arranged with two groups of moisture film groups in said first water tower and said second water tower, a sprinkler head and a membranous disc are formed a moisture film group, and be high through four spray dust rate of recovery; Tail gas dust and pernicious gas behind the spray are few, low in the pollution of the environment.
The membranous disc of present embodiment comprises at least two oblique fins that are fixed in the said water film dust removal device 10, and said oblique fin is staggered arranges.Tiltedly fin the contact area that can increase dust and membranous disc is set, in the present embodiment tiltedly fin be tilted to down setting, help spraying attached to the dust in the membranous disc, be convenient to collection and recycle.An oblique fin is corresponding with a membranous disc.
The device for recovering powder of present embodiment also includes settler, and said settler is arranged between said blower unit 8 and the said water film dust removal device 10.From heating pipe 2 discharge tail gas and dust through blower unit 8 mud chamber 9 that flows through; Utilize dust different with current density and the part dust is trapped in the mud chamber 9; The dust that precipitates is capable of circulation to be used in the material pond of automatic feed mechanism 6; Improve raw-material utilization ratio, reduce production costs.
The settler of present embodiment comprises at least two mud chambers 9 that are communicated with successively, and it is longer that the time that two mud chambers 9 can make dust be trapped in the mud chamber 9 is set, and the dust sedimentation time is long, and the dust recovering effect is good.
Each of present embodiment is provided with corrugated pipeline in the said mud chamber 9.Be provided with corrugated pipeline in each mud chamber 9,, increase the path that tail gas and dust pass through, make the sedimentation time longer, and corrugated pipeline is beneficial to adhering to of dust and precipitates the recovery utilization rate of raising dust through corrugated pipeline.Certainly, the pipeline in the mud chamber can also be labyrinth shape or other shapes.
Embodiment two
As shown in Figure 2; The difference of present embodiment and embodiment one is; The calcining furnace of present embodiment also includes waste-heat recovery device, and said waste-heat recovery device includes ventilation duct 3 and the heat-exchange tube 4 that is built-in with heat-conducting medium, and the tube wall of the tube wall of said ventilation duct 3 and said heating pipe 2 fits; Said heat-exchange tube 4 is inserted in the tube wall joint place of said ventilation duct 3 and heating pipe 2; The two ends of said heat-exchange tube 4 are exposed to the inner chamber of said heating pipe 2 and the inner chamber of said ventilation duct 3 respectively, and the air inlet of said ventilation duct 3 is provided with extractor fan 5, and the gas outlet of said ventilation duct 3 is communicated with the air inlet of said heating furnace 1.
The tail gas of getting rid of from heating pipe 2 not only contains a large amount of dust and a spot of SO
2With pernicious gases such as CO, also contain a large amount of waste heats.Heat-conducting medium in the said heat-exchange tube 4 contacts then heat absorption vaporization with high-temperature tail gas; And heat-exchange tube 4 is met cold liquefaction heat release in ventilation duct 3, and to ventilation duct 3, high temperature air enters into heating furnace 1 through the effect of air blast to high-temperature tail gas through heat-exchange tube 4 heat releases like this; So back and forth; Circulation at a high speed, the hot-air after the heat exchange get into the air inlet heat supply steam stove 1 calcining usefulness of heating furnace 1, and waste heat fully reclaims and recycle; Effectively reduced the consumption of coal, the low and satisfied national energy conservation and environment protection of energy consumption.In addition, the dust and pernicious gas such as CO and the SO that produce in the calcined material process such as soil conditioner
2Deng being trapped in the processing environment, extractor fan 5 can be with the dust in the production environment, CO and SO
2Advance heating furnace 1 continuation use Deng suction, purify indoor environment, improve the space cleanliness factor of processing environment, production security is high.
The present embodiment remainder is identical with embodiment one, repeats no more here.
Should be noted that at last; Above embodiment only be used to explain the utility model technical scheme but not to the restriction of the utility model protection domain; Although the utility model has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and do not break away from the essence and the scope of the utility model technical scheme.
Claims (9)
1. a calcining furnace tail gas dust reclaims EGR; Comprise heating furnace, the heating pipe that is communicated with heating furnace; Be connected with automatic feed mechanism between said heating furnace and the said heating pipe, the end of said heating pipe is connected with pulverizing chamber, it is characterized in that: said heating pipe is connected with device for recovering powder; The tail gas outlet of said heating pipe is connected with the charging aperture of said device for recovering powder, and the discharging opening of said device for recovering powder is connected with said automatic feed mechanism.
2. a kind of calcining furnace tail gas dust according to claim 1 reclaims EGR; It is characterized in that: said device for recovering powder includes water film dust removal device; The discharging opening of said water film dust removal device is connected with said automatic feed mechanism, is provided with blower unit between said heating pipe and the said water film dust removal device.
3. a kind of calcining furnace tail gas dust according to claim 2 reclaims EGR; It is characterized in that: said water film dust removal device comprises first water tower and second water tower that the top is communicated with; Be respectively arranged with out sprinkler head in said first water tower and said second water tower and be crisscross arranged in the membranous disc that goes out sprinkler head below; The bottom of said first water tower offers charging aperture, and the bottom of said first water tower and said second water tower offers discharging opening respectively.
4. a kind of calcining furnace tail gas dust according to claim 3 reclaims EGR, it is characterized in that: be respectively arranged with at least two in said first water tower and said second water tower and go out sprinkler head and at least two group membranous discs.
5. a kind of calcining furnace tail gas dust according to claim 4 reclaims EGR, it is characterized in that: said membranous disc comprises at least two oblique fins that are fixed in the said water film dust removal device, and said oblique fin is staggered arranges.
6. reclaim EGR according to any described a kind of calcining furnace tail gas dust in the claim 2 to 5; It is characterized in that: said device for recovering powder also includes settler, and said settler is arranged between said blower unit and the said water film dust removal device.
7. a kind of calcining furnace tail gas dust according to claim 6 reclaims EGR, it is characterized in that: said settler comprises at least two mud chambers that are communicated with successively.
8. a kind of calcining furnace tail gas dust according to claim 7 reclaims EGR, it is characterized in that: be provided with corrugated pipeline in each said mud chamber.
9. a kind of calcining furnace tail gas dust according to claim 1 reclaims EGR; It is characterized in that: also include waste-heat recovery device; Said waste-heat recovery device includes ventilation duct and the heat-exchange tube that is built-in with heat-conducting medium; The tube wall of said ventilation duct and the tube wall of said heating pipe fit, and said heat-exchange tube is inserted in the tube wall joint place of said ventilation duct and heating pipe, and the two ends of said heat-exchange tube are exposed to the inner chamber of said heating pipe and the inner chamber of said ventilation duct respectively; The air inlet of said ventilation duct is provided with extractor fan, and the gas outlet of said ventilation duct is communicated with the air inlet of said heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203757655U CN202254889U (en) | 2011-09-28 | 2011-09-28 | Tail gas dust recycling and circulating device for calciner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203757655U CN202254889U (en) | 2011-09-28 | 2011-09-28 | Tail gas dust recycling and circulating device for calciner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202254889U true CN202254889U (en) | 2012-05-30 |
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ID=46116119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203757655U Expired - Lifetime CN202254889U (en) | 2011-09-28 | 2011-09-28 | Tail gas dust recycling and circulating device for calciner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202254889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931793A (en) * | 2015-12-30 | 2017-07-07 | 中核二七二铀业有限责任公司 | A kind of method for improving calcining furnace tail gas absorption efficiency |
| CN112791503A (en) * | 2020-12-22 | 2021-05-14 | 泰和县宏川金属有限公司 | Water-powder separating device for producing cobalt powder |
-
2011
- 2011-09-28 CN CN2011203757655U patent/CN202254889U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931793A (en) * | 2015-12-30 | 2017-07-07 | 中核二七二铀业有限责任公司 | A kind of method for improving calcining furnace tail gas absorption efficiency |
| CN112791503A (en) * | 2020-12-22 | 2021-05-14 | 泰和县宏川金属有限公司 | Water-powder separating device for producing cobalt powder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |