CN201678713U - Lower zinc oxide collection device for rotary kiln head - Google Patents
Lower zinc oxide collection device for rotary kiln head Download PDFInfo
- Publication number
- CN201678713U CN201678713U CN2009203188500U CN200920318850U CN201678713U CN 201678713 U CN201678713 U CN 201678713U CN 2009203188500 U CN2009203188500 U CN 2009203188500U CN 200920318850 U CN200920318850 U CN 200920318850U CN 201678713 U CN201678713 U CN 201678713U
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- zinc oxide
- collection device
- rotary kiln
- low
- grade zinc
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a lower zinc oxide collection device for a rotary kiln head, in particular to a kiln head collection device which is used for collecting lower zinc oxide powder with lighter weight and thin granularity in coal-based gas mud dezincification production enterprises. For the lower zinc oxide collection device for the rotary kiln head, the rotary kiln head is provided with a closed door stopping facility bigger than the kiln head; the lower zinc oxide collection device is arranged above the closed door stopping facility of the rotary kiln head; the lower zinc oxide collection device is provided with a primary monomer sedimentation box through which smoke with lower zinc oxide can pass; a transmission pipeline at the inlet end of the sedimentation box is connected with a high-temperature smoke collection cover positioned above the closed door stopping facility; and a transmission pipeline at the outlet end of the sedimentation box is provided with an exhaust fan. The collection device is used for collecting and settling a large amount of smoke with zinc oxide sprayed from the kiln head, thereby improving the zinc collection quantity, saving the cost and lowering the pollution to the environment as the lower zinc oxide powder is emitted into the air.
Description
Technical field
The utility model relates to a kind of collection device, especially relates to the rotary kiln end low-grade zinc oxide collection device that a kind of coal-based gas mud dezincify manufacturing enterprise uses when collecting the low-grade zinc oxide powder of light specific gravity, fine size.
Background technology
Along with the anxiety of iron ore resource, blast furnace has to use the higher iron ore of part zinc content at present, therefore produces a large amount of high zinc gas muds in metallurgical process.High zinc gas mud adopts coal-based pyrogenic process to carry zinc, with zinc-containing mash gas mud and reduction carbon under 1100 ℃ of conditions, react zinc fume, oxygen reaction in zinc fume and the air, the condensation recovery obtains the low-grade zinc oxide powder then.It generally is to collect by dust-removal cloth-bag by modes such as a sedimentation of herringbone tube, secondary settlements in the kiln portion that the low-grade zinc oxide powder of mean particle size 6 μ m is collected.And do not collect at kiln hood, will take away a large amount of useful low-grade zinc oxide powder from the flue gas that contains zinc oxide of kiln hood ejection, both caused damage, harm operator's health causes serious environmental to pollute simultaneously again.
The utility model content
Technical problem to be solved in the utility model is: a kind of rotary kiln end low-grade zinc oxide collection device that low-grade zinc oxide in the rotary kiln end flue gas is collected is provided.
The technical scheme that solves the problems of the technologies described above is: rotary kiln end low-grade zinc oxide collection device, the sealing that is equipped with greater than kiln hood at described rotary kiln end keeps off door facilities, and described rotary kiln end sealing retaining door facilities top is provided with the low-grade zinc oxide collection device; Described low-grade zinc oxide collection device is provided with for containing the primary monomer sedimentation casing that the low-grade zinc oxide flue gas passes through; Be connected with a high-temperature flue gas collecting hood that is positioned at above the sealing retaining door facilities on the transmission pipeline of this sedimentation casing inlet end, the transmission pipeline of exit end is provided with vacuum fan.
Further be, the intravital top of described primary monomer sludge box is the high-temperature flue gas passage that contains low-grade zinc oxide, and the bottom is provided with dust collecting; The wind shielding structure that is provided with the reducing smoke flow velocity that interlocks on the top board of described exhaust gases passes and the inner side-wall of base plate, the top board outside also is provided with refrigerating unit.
Further be, described dust collecting is that up big and down small back taper dust is received ash bin, and this dust is received grey lower box part and also is provided with the powder dumping device.
The optimal way of such scheme is that the Controlling System of described blower fan is provided with blast regulator.
Further be, the exit end of described blower fan is provided with secondary bag-type dust case, and this secondary bag-type dust case below is provided with the ash removing hole of output low-grade zinc oxide powder.
The optimal way of such scheme is, described secondary bag-type dust case is two, and the inlet duct of each bag-type dust case is provided with the flue gas shut-off device.
The optimal way of such scheme is that the used cloth bag of described secondary bag-type dust case is the high temperature resistant Nomex of overlay film Mei Tasi.
In sum, the beneficial effects of the utility model are: by above the sealing retaining door facilities of rotary kiln end a low-grade zinc oxide collection device being set, to the flue gas that contains Zinc oxide powder in a large number from kiln hood ejection collect, sedimentation, improved the collecting amount of zinc, saved cost, reduced the low-grade zinc oxide powder simultaneously and be exhausted in the air pollution environment.
Description of drawings
Fig. 1 is the front view of the layout of the utility model rotary kiln end low-grade zinc oxide collection device;
Fig. 2 is the vertical view of the layout of the utility model rotary kiln end low-grade zinc oxide collection device;
Fig. 3 is the primary monomer sludge box detail drawing of the utility model rotary kiln end low-grade zinc oxide collection device;
Fig. 4 is the secondary bag-type dust case detail drawing that the utility model rotary kiln end low-grade zinc oxide is collected dress.
Be labeled as among the figure, sealing retaining door facilities 1, high-temperature flue gas collecting hood 2, transmission pipeline 3, primary monomer sedimentation device 4, blower fan 5, secondary bag-type dust case 6, electric butterfly valve device 7, steel baffle plate 8, cooling water tank 9, dust are received ash bin 10, automatic discharging headstock gear 11, cloth bag 12, ash removing hole 13.
Embodiment
Described as background information, at the smelting zinc of rotary kiln, only tail gas is reclaimed in the prior art, kiln hood is not reclaimed, so it is higher to smelt the cost of zinc, environmental pollution is serious.
As shown in Figure 1 and Figure 2, it is a kind of collection device that is used for the rotary kiln end low-grade zinc oxide that the utility model provides, the sealing that is equipped with greater than kiln hood at described rotary kiln end keeps off door facilities 1, and described rotary kiln end sealing retaining door facilities 1 top is provided with the low-grade zinc oxide collection device.Adopt described collection device can a large amount of low-grade zinc oxides from the flue gas of rotary kiln end ejection be reclaimed, improve the collection rate of low-grade zinc oxide, reduce cost, the low-grade zinc oxide of discharging in the time of also can reducing with rotary kiln end ejection high-temperature flue gas simultaneously is to the pollution of environment.
Described structure and the form that is arranged on the low-grade zinc oxide collection device of rotary kiln end can be directly to prop up a collecting hood 2 above kiln hood envelope crammed door facilities 1, collect from the high-temperature flue gas of kiln hood ejection by collecting hood 2, and then a tee tube is set at collecting hood 2 afterbodys, the low-grade zinc oxide sedimentation in tee tube in the flue gas is got final product.But this structure and form are to the collecting effect extreme difference of high-temperature flue gas, and the sedimentation of low-grade zinc oxide can not get guaranteeing, enters from tee tube in the airborne flue gas and also can contain a large amount of low-grade zinc oxides.As shown in Figure 1 and Figure 2, low-grade zinc oxide collection device described in the utility model is provided with for containing the primary monomer sedimentation casing 4 that the low-grade zinc oxide flue gas passes through, and is used for the sedimentation of a large amount of Zinc oxide powders that flue gas contains; Being connected with a high-temperature flue gas collecting hood 2 that is positioned at above the sealing retaining door facilities 1 on the transmission pipeline 3 of these sedimentation casing 4 inlet ends, be convenient to enter the sludge box 4 by collecting hood to greatest extent from the flue gas of kiln hood ejection; On the transmission pipeline 3 of described sedimentation casing 4 exit end, be provided with vacuum fan 5, work by this vacuum fan 5 just can make the flue gas that contains low-grade zinc oxide that sprays from kiln hood all flow to smoothly the primary monomer sedimentation casing 4 by collecting hood as much as possible, sedimentation in this primary monomer sedimentation casing 4, collection again improves collection rate.
As shown in Figure 3, for the ease of collecting the low-grade zinc oxide powder, the top in the described primary monomer sedimentation casing 4 is made as the passage that contains the low-grade zinc oxide high-temperature flue gas, and the bottom is provided with the dust collecting that makes the more convenient output of settled low-grade zinc oxide powder.For the time lengthening that the high-temperature flue gas that contains low-grade zinc oxide is stopped in primary monomer sedimentation casing 4, help the sedimentation of low-grade zinc oxide powder, the staggered wind shielding structure that is provided with by the steel plate retaining 8 reducing smoke flow velocitys that constitute on the top board of described exhaust gases passes and the inner side-wall of base plate, thereby making flue gas is not the afterbody outlet of the linear primary monomer sedimentation casing 4 that circulates in passage, but the afterbody outlet that primary monomer sedimentation casing 4 is arrived in S-type circulation in vertical surface, prolonged the residence time of flue gas in primary monomer sedimentation casing 4, improved the rate of descent of low-grade zinc oxide powder in sedimentation casing 4, and then improved the collection rate of zinc oxide, certain described wind shielding structure can also have other structure, as long as the flow velocity of flue gas is slowed down, such as AND DEWATERING FOR ORIFICE STRUCTURE; Because the flue-gas temperature of kiln hood ejection is more much higher than the flue-gas temperature of kiln tail output, and is totally unfavorable to the sedimentation of Zinc oxide powder, so collection rate is also extremely low; In order to reduce flue-gas temperature, improve collection rate, also be provided with the refrigerating unit that constitutes by cooling water tank 9 in the top board outside of exhaust gases passes high-temperature flue gas is cooled off, be provided with the cooling system that water coolant is provided in the cooling water tank 9.For the ease of the concentrated collection device of exporting again afterwards of settled Zinc oxide powder, described dust collecting is the powder dumping device that is made of automatic discharging headstock gear 11 that up big and down small back taper dust receives that ash bin 10 and this dust receive that ash bin 10 bottoms are provided with, thereby just can be very easily with the Zinc oxide powder output of collecting; Described powder dumping device also can be manually, collects after the amount that reaches certain manually output Zinc oxide powder.Further in order to regulate the airshed that flows in the sedimentation casing 4 according to the exhaust gas volumn of kiln hood ejection, collected the flue gas of kiln hood ejection as much as possible, prolong the work-ing life of blower fan again, the Controlling System of described blower fan 5 is provided with blast regulator, thereby reaches the purpose of regulating air input according to kiln hood ejection exhaust gas volumn.
As shown in Figure 4, although taked measures such as above-mentioned reducing smoke flow velocity, reduction flue-gas temperature, but still also have in the flue gas a large amount of low-grade zinc oxide powder following anxious sedimentation, just flow out the exit end of blower fan 5, in order further to improve the collecting amount of zinc oxide, reduce and discharge the pollution of tail gas environment, exit end at described blower fan also is provided with secondary bag-type dust case 6, makes the flue gas that comes out from blower fan carry out sedimentation, the collection of a low-grade zinc oxide powder through secondary bag-type dust case 6 again; To the collection output of sedimentation zinc oxide, secondary bag-type dust case 6 sidewalls are provided with the ash removing hole 13 of collecting the low-grade zinc oxide powder for convenience.For the gasification zinc powder that method is cleared up, output is collected, described secondary bag-type dust case is two, the inlet duct of each bag-type dust case is provided with the flue gas shut-off device that is made of electric butterfly valve device 7, so just can make two secondary bag-type dust case 6 alternative work, when which needing work, just open which electric butterfly valve device 7, and another just can clear up the collection output services, certain described shut-off device also can be a hand stop valve, as long as can not need work to advance to cut off flue gas.Because the difference that kiln hood is collected and the kiln tail is collected is bigger, kiln hood is collected and is carried out under hot conditions, although having adopted cooling to handle but the temperature of tail gas is still higher, in order to improve the work-ing life of secondary bag-type dust case 6 cloth bags 12, the used cloth bag 12 of described secondary bag-type dust case is the high temperature resistant Nomex of overlay film Mei Tasi, and through teflon coating and grease proofing according to water, antisweat processing, its working temperature is≤180 ℃, the short-term operation temperature of whole temperature raising processing ring formation of rotary kiln shape can be 240 ℃ in rotary kiln, and cloth bag is collected as interior collection.
Claims (7)
1. rotary kiln end low-grade zinc oxide collection device is equipped with sealing retaining door facilities (1) greater than kiln hood at described rotary kiln end, and it is characterized in that: described rotary kiln end sealing retaining door facilities (1) top is provided with the low-grade zinc oxide collection device; Described low-grade zinc oxide collection device is provided with for containing the primary monomer sedimentation casing (4) that the low-grade zinc oxide flue gas passes through; Be connected with a high-temperature flue gas collecting hood (2) that is positioned at sealing retaining door facilities (1) top on the transmission pipeline (3) of this sedimentation casing (4) inlet end, the transmission pipeline of exit end (3) is provided with vacuum fan (5).
2. rotary kiln end low-grade zinc oxide collection device according to claim 1 is characterized in that: the top in the described primary monomer sedimentation casing (4) is the high-temperature flue gas passage that contains low-grade zinc oxide, and the bottom is provided with dust collecting; The wind shielding structure that is provided with the reducing smoke flow velocity that interlocks on the top board of described exhaust gases passes and the inner side-wall of base plate, the top board outside also is provided with refrigerating unit.
3. rotary kiln end low-grade zinc oxide collection device according to claim 2 is characterized in that: described dust collecting is that up big and down small back taper dust is received ash bin (10), and this dust is received ash bin (10) bottom and also is provided with the powder dumping device.
4. rotary kiln end low-grade zinc oxide collection device according to claim 1 is characterized in that: the Controlling System of described blower fan (5) is provided with blast regulator.
5. rotary kiln end low-grade zinc oxide collection device according to claim 4, it is characterized in that: the exit end of described blower fan (5) is provided with secondary bag-type dust case (6), and this secondary bag-type dust case below is provided with the ash removing hole (13) of output low-grade zinc oxide powder.
6. rotary kiln end low-grade zinc oxide collection device according to claim 5 is characterized in that: described secondary bag-type dust case (6) is two, and the inlet duct of each bag-type dust case (6) is provided with the flue gas shut-off device.
7. according to each described rotary kiln end low-grade zinc oxide collection device in the claim 5～6, it is characterized in that: the used cloth bag of described secondary bag-type dust case (6) (12) is the high temperature resistant Nomex of overlay film Mei Tasi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203188500U CN201678713U (en) | 2009-12-29 | 2009-12-29 | Lower zinc oxide collection device for rotary kiln head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203188500U CN201678713U (en) | 2009-12-29 | 2009-12-29 | Lower zinc oxide collection device for rotary kiln head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678713U true CN201678713U (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203188500U Expired - Fee Related CN201678713U (en) | 2009-12-29 | 2009-12-29 | Lower zinc oxide collection device for rotary kiln head |
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| CN (1) | CN201678713U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104857803A (en) * | 2015-06-01 | 2015-08-26 | 安徽诚泰环保工程有限公司 | Bag dust removal purifier |
| CN107937729A (en) * | 2017-12-29 | 2018-04-20 | 永仁共创锌业有限公司 | From industry containing the system that zinc is extracted in Zn scrap returns |
| CN113522218A (en) * | 2021-07-30 | 2021-10-22 | 江西中晶新材料有限公司 | Production device and production method of 5N zinc oxide |
| CN113701512A (en) * | 2021-08-10 | 2021-11-26 | 马鞍山钢铁股份有限公司 | Multistage water-cooling partition plate zinc-sodium flue gas dust collection device and treatment method thereof |
| CN113758288A (en) * | 2021-08-30 | 2021-12-07 | 马鞍山钢铁股份有限公司 | Crude flue gas intermingling cold wind type temperature control adjusting device and adjusting method thereof |
| CN113819767A (en) * | 2021-08-30 | 2021-12-21 | 马鞍山钢铁股份有限公司 | Device for pre-cooling crude flue gas and collecting flue gas dust |
| CN114001554A (en) * | 2021-09-15 | 2022-02-01 | 马鞍山钢铁股份有限公司 | Sintering production flue gas system temperature stabilization regulation control model and application method thereof |
| CN114001555A (en) * | 2021-09-15 | 2022-02-01 | 马鞍山钢铁股份有限公司 | Partition plate type dust-settling temperature-regulating pressure-stabilizing flue gas pretreatment device and application process |
-
2009
- 2009-12-29 CN CN2009203188500U patent/CN201678713U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104857803A (en) * | 2015-06-01 | 2015-08-26 | 安徽诚泰环保工程有限公司 | Bag dust removal purifier |
| CN107937729A (en) * | 2017-12-29 | 2018-04-20 | 永仁共创锌业有限公司 | From industry containing the system that zinc is extracted in Zn scrap returns |
| CN113522218A (en) * | 2021-07-30 | 2021-10-22 | 江西中晶新材料有限公司 | Production device and production method of 5N zinc oxide |
| CN113701512A (en) * | 2021-08-10 | 2021-11-26 | 马鞍山钢铁股份有限公司 | Multistage water-cooling partition plate zinc-sodium flue gas dust collection device and treatment method thereof |
| CN113758288A (en) * | 2021-08-30 | 2021-12-07 | 马鞍山钢铁股份有限公司 | Crude flue gas intermingling cold wind type temperature control adjusting device and adjusting method thereof |
| CN113819767A (en) * | 2021-08-30 | 2021-12-21 | 马鞍山钢铁股份有限公司 | Device for pre-cooling crude flue gas and collecting flue gas dust |
| CN113758288B (en) * | 2021-08-30 | 2023-03-03 | 马鞍山钢铁股份有限公司 | Crude flue gas intermingling cold wind type temperature control adjusting device and adjusting method thereof |
| CN113819767B (en) * | 2021-08-30 | 2023-03-03 | 马鞍山钢铁股份有限公司 | Device for pre-cooling crude flue gas and collecting flue gas dust |
| CN114001554A (en) * | 2021-09-15 | 2022-02-01 | 马鞍山钢铁股份有限公司 | Sintering production flue gas system temperature stabilization regulation control model and application method thereof |
| CN114001555A (en) * | 2021-09-15 | 2022-02-01 | 马鞍山钢铁股份有限公司 | Partition plate type dust-settling temperature-regulating pressure-stabilizing flue gas pretreatment device and application process |
| CN114001554B (en) * | 2021-09-15 | 2022-10-04 | 马鞍山钢铁股份有限公司 | Sintering production flue gas system temperature stabilization regulation control model and application method thereof |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20101222 Termination date: 20151229 |