CN201809414U - Air exhaust system for aluminum annealing furnace - Google Patents
Air exhaust system for aluminum annealing furnace Download PDFInfo
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- CN201809414U CN201809414U CN2010202910545U CN201020291054U CN201809414U CN 201809414 U CN201809414 U CN 201809414U CN 2010202910545 U CN2010202910545 U CN 2010202910545U CN 201020291054 U CN201020291054 U CN 201020291054U CN 201809414 U CN201809414 U CN 201809414U
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- malleation
- exhaust system
- exhaust
- air exhaust
- air
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Abstract
The utility model relates to an air exhaust system for an aluminum annealing furnace. The air exhaust system comprises a positive pressure air exhaust system which is formed by a high-pressure centrifugal blower fan, a positive pressure air inlet pipeline connected with an air outlet of the high-pressure centrifugal blower fan, a control valve on the positive pressure air inlet pipeline and a positive pressure air exhaust pipeline. The air exhaust system is characterized by the further inclusion of a negative pressure air exhaust system which is formed by a high-temperature and high-pressure centrifugal blower fan, a negative pressure air suction pipeline connected with an air inlet of the high-temperature and high-pressure centrifugal blower fan, a control valve on the negative pressure air suction pipeline and a negative pressure air exhaust pipeline connected with an air outlet of the high-temperature and high-pressure centrifugal blower fan. The tail ends of the positive and the negative pressure air exhaust pipelines are connected with an air exhaust main pipe; and a pressure balance valve is arranged on the air exhaust main pipe. The positive pressure air inlet pipeline as well as the positive pressure air exhaust pipeline is formed by a main pipe and a branch pipe; an air inlet main pipe as well as an air exhaust main pipe adopts a composite pipe; an inner pipe is an air exhaust main pipe; and an outer pipe is an air inlet pipe. The utility model adopts the positive pressure air exhaust system and the negative pressure air exhaust system, and the two systems alternatively work, so that the exhaust effect and the efficiency are improved; and a composite pipe structure is adopted the positive pressure air exhaust system, so that the thermal efficiency of the annealing furnace is improved, and the burn accidents are simultaneously avoided.
Description
Technical field
The utility model relates to the aluminium annealing field, particularly aluminium annealing furnace exhaust system.
Background technology
The aluminium annealing furnace is the widely used equipment of present aluminium industry, is mainly used in aluminium plate or aluminium coiled material process annealing or the finished products in the operation of rolling.Since aluminium plate or aluminium coiled material in pressing process surface attachment a large amount of ROLLING OIL, these attaching oils have had a strong impact on the quality of product, therefore how to make these attaching oils separate and discharged out of the furnace into the quality critical that improves product from product surface fast.Employing at present is provided with the malleation exhaust system and realizes on the aluminium annealing furnace, this malleation exhaust system comprises high pressure centrifugal blower fan, the admission passage that links to each other with fan outlet, be arranged on control valve on the admission passage, exhaust line and setting equilibrium pressure valve thereon.Outside air enters in the annealing furnace through blower fan, admission passage and mixes with furnace air, and when furnace air pressure reached certain value, the equilibrium pressure valve was opened, and had been with the smeary high-temperature furnace gas to be discharged into outside the stove by exhaust line.Though above-mentioned malleation exhaust system can be discharged a part of oil stain, but this exhaust system oil extraction weak effect, especially aluminium plate or aluminium coiled material gap location exist a large amount of oil stains to be difficult to discharge, this exhaust system oil removal efficiency is low in addition, and the quality product of processing is difficult to satisfy the requirement of high-quality aluminium in the market.
Summary of the invention
The utility model provides a kind of oil extraction effective for solving the technical problem that exists in the known technology, is particularly useful for getting rid of a large amount of oil stains of aluminium plate or aluminium volume gap location, and the high aluminium annealing furnace exhaust system of oil extraction efficient.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The utility model can also adopt following technical scheme:
A kind of aluminium annealing furnace exhaust system, comprise by the high pressure centrifugal blower fan, the malleation admission passage that links to each other with fan outlet, be arranged on control valve on the malleation admission passage, the malleation exhaust system that the malleation exhaust line constitutes, it is characterized in that: also comprise by the High Temperature High Pressure centrifugal fan, the negative inspiratory pressure pipeline that links to each other with air inlet, be arranged on the control valve on the negative inspiratory pressure pipeline, the negative pressure exhaust system that the negative pressure exhaust pipeline that links to each other with the blower fan air outlet constitutes, the end of the end of described malleation exhaust line and negative pressure exhaust pipeline all is connected in exhaust-gas receiver, and the equilibrium pressure valve is set on exhaust-gas receiver.
Described negative pressure suction tube route negative inspiratory pressure main and several negative inspiratory pressure arms constitute, the end of described negative inspiratory pressure arm all is provided with the annular thin wall air suction structure, the upper surface of described air suction structure is provided with the venting port that adapts with air-breathing arm, several suction openinies that are uniformly distributed along the circumference on the described air suction structure lower surface are equipped with the sliding door of regulating its opening degree size on suction opening
The cross section of described annular suction mechanism is a rectangular configuration.
Described suction opening is the rectangle suction opening.
Described malleation admission passage is made of malleation air inlet main and several malleation air intake branches, described malleation exhaust line is made of malleation exhaust main and several malleation exhaust branch pipes, described malleation air inlet main and described malleation exhaust main are multiple-unit tube, interior pipe is the exhaust main, and outer tube is the air inlet main.
Advantage and the positively effect that the utlity model has are: the utility model is on the basis of original malleation exhaust system, set up the negative pressure exhaust system, positive and negative exhaust system alternation, after several working cycle, the oil stain of aluminium material surface, particularly the oil stain of aluminium plate or aluminium volume gap location is discharged to outside the stove completely; End at the negative inspiratory pressure arm is provided with the annular thin wall air suction structure, and evenly is provided with the adjustable suction opening of several opening degrees in the lower surface of air suction structure along circumference, can form stable negative pressure at the aluminium place; Malleation air inlet main and malleation exhaust main are made multiple-unit tube, interior pipe is made as vapor pipe, from then on high-temperature furnace gas manages discharge, outer tube is made as inlet pipe, and outside air from then on pipe enters in the stove, adopts above-mentioned multiple-unit tube, on the one hand, high-temperature furnace gas is passed to the air that will enter in the stove with the part heat by tube wall, reduces the heat-up time of air in stove, has reduced high-temperature furnace gas simultaneously and has been discharged into extraneous heat; On the other hand, avoid high-temperature exhaust pipe to scald people's danger.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 be among Fig. 1 the annular thin wall air suction structure look up enlarged view;
Fig. 3 is a user mode synoptic diagram of the present utility model.
Among the figure: 1-high pressure centrifugal blower fan; The 2-air outlet; The 3-blast inlet; The 4-control valve; 5-malleation air inlet main; 6-malleation air intake branch; 7-malleation exhaust main; 8-malleation exhaust branch pipe; 9-High Temperature High Pressure formula centrifugal blower; The 10-blast inlet; 11-negative inspiratory pressure main; The 12-control valve; 13-negative inspiratory pressure arm; 14-annular thin wall air suction structure; The 15-venting port; The 16-suction opening; The 17-sliding door; The 18-air outlet; 19-negative pressure exhaust pipe; The 20-exhaust-gas receiver; 21-equilibrium pressure valve; The 22-recirculation blower.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-3, a kind of aluminium annealing furnace exhaust system comprises malleation exhaust system and negative pressure exhaust system.The malleation exhaust system comprises high pressure centrifugal blower fan 1, present embodiment is preferably 9-19 type high pressure centrifugal blower fan, blower fan comprises a blast inlet 3 and an air outlet 2,3 places are provided with airstrainer at blast inlet, fan outlet 2 links to each other with the malleation admission passage, the malleation admission passage is made of air inlet main 5 and several air intake branches 6, malleation air intake branch 6 is preferably 2 in the present embodiment, on each air intake branch 6, control valve 4 is set, be used to be switched on or switched off pipeline, control valve 4 adopts butterfly valve in the present embodiment, butterfly valve can adopt electronic or the pneumatic control mode, the malleation exhaust system also comprises the malleation exhaust line in addition, and the malleation exhaust line is made of exhaust main 7 and several exhaust branch pipes 8, and malleation exhaust branch pipe 8 is preferably 2 in the present embodiment.In the present embodiment, air inlet main 5 and exhaust main 7 are multiple-unit tube, and interior pipe is set to vapor pipe, and by high-temperature furnace gas, outer tube is set to inlet pipe, by outside air, adopt above-mentioned multiple-unit tube, have improved the thermo-efficiency of system, avoid the scald accident simultaneously.The negative pressure exhaust system comprises high pressure-temperature centrifugal fan 9, present embodiment is preferably W9-19 type High Temperature High Pressure centrifugal fan, this blower fan 9 comprises a blast inlet 10 and an air outlet 18, blast inlet 10 links to each other with the negative inspiratory pressure pipeline, negative pressure suction tube route negative inspiratory pressure main 11 and several negative inspiratory pressure arms 13 constitute, negative inspiratory pressure arm 13 is preferably 2 in the present embodiment, control valve 12 is set on negative inspiratory pressure arm 13, adopt butterfly valve in the present embodiment, butterfly valve can adopt electronic or the pneumatic control mode.End at each air-breathing arm 13 all is provided with annular thin wall air suction structure 14, the cross section of annular air suction structure 14 can be rectangle or circle etc., be preferably rectangular configuration in the present embodiment, be provided with the venting port 15 that adapts with air-breathing arm 13 in the upper surface of annular air suction structure 14, annular air suction structure 14 is fixedlyed connected with air-breathing arm 13 in venting port 15 positions, lower surface at annular air suction structure 14 along the circumferential direction evenly is provided with several suction openinies 16, suction opening 16 can be preferably rectangle for rectangle or circle etc. in the present embodiment.In suction opening 16 positions sliding door 17 is set all, by the relative position of control sliding door 17 with suction opening 16, just can regulate the size of suction opening 16, slightly little with the aperture of the approaching suction opening 16 of venting port 15, aperture away from the suction opening 16 of venting port 15 increases gradually, adopting above-mentioned air suction structure and suction opening form, is in order to form uniform negative pressure at the product place.In total exhaust system of above-mentioned malleation exhaust system and negative pressure exhaust system formation, the end of malleation exhaust main 7 and negative pressure exhaust pipe 19 all links to each other with exhaust-gas receiver 20, equilibrium pressure valve 21 is set on exhaust-gas receiver 20, equilibrium pressure valve 21 is provided with a preset value, when aluminium annealing furnace internal gas pressure value surpasses this preset value, equilibrium pressure valve 21 is opened, and the high-temperature gas that has oil stain in the stove is discharged.
There are certain temperature head in the air and the high-temperature furnace gas in the stove that enter in the stove by the malleation admission passage, for not influencing the uniformity coefficient of furnace temperature, guarantee to anneal and carry out smoothly, exhaust system is arranged on the body of heater top, the gas that blasts by high pressure centrifugal blower fan 1 is above product, and, after the heater via heating, carry out heat exchange with product again through 22 stirrings of the recirculation blower in the stove.Be to guarantee stable, the operation fast of furnace gas, recirculation blower 22, malleation air intake branch 6, malleation exhaust branch pipe 8 are identical with the number of negative inspiratory pressure arm 13.In addition, the air suction inlet 16 in the negative pressure exhaust system is arranged on around recirculation blower 22 inlet mouths, and adopting such structure is in order to form bigger negative pressure at the product place, and the oil stain that is beneficial to be adsorbed on product surface or gap location separates rapidly, volatilizees.
Principle of work of the present utility model:
Malleation exhaust system of the present utility model and negative pressure exhaust system adopt the mode of alternation.When the malleation exhaust system is started working, close the butterfly valve in the negative pressure system, at first open the butterfly valve in the malleation admission passage, open high pressure centrifugal blower fan 1 then, in stove, blast extraneous air, enter the interior air of stove after recirculation blower 22 stirs, the heater via heating is lumped together with furnace gas, when the gas pressure value in the stove surpasses the preset value of equilibrium pressure valve 21, equilibrium pressure valve 21 is opened, and high-temperature furnace gas is discharged by the malleation exhaust line.When the negative pressure exhaust system works, close the butterfly valve in the positive pressure system, at first open the butterfly valve in the negative pressure inlet pipeline, open High Temperature High Pressure centrifugal blower 9 then, by the negative inspiratory pressure pipeline furnace high-temperature gas is drawn in the blower fan, by the negative pressure exhaust pipeline gas is discharged then.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (5)
1. aluminium annealing furnace exhaust system, comprise by high pressure centrifugal blower fan (1), the malleation admission passage that links to each other with blower fan (1) air outlet (2), be arranged on control valve on the malleation admission passage (4), the malleation exhaust system that the malleation exhaust line constitutes, it is characterized in that: also comprise by High Temperature High Pressure centrifugal fan (9), the negative inspiratory pressure pipeline that links to each other with blower fan (9) blast inlet (10), be arranged on the control valve (12) on the negative inspiratory pressure pipeline, the negative pressure exhaust system that the negative pressure exhaust pipeline that links to each other with blower fan (9) air outlet (18) constitutes, the end of the end of described malleation vapor pipe and negative pressure exhaust pipe all is connected in exhaust-gas receiver (20), and equilibrium pressure valve (21) is set on exhaust-gas receiver (20).
2. according to the described aluminium annealing furnace of claim 1 exhaust system, it is characterized in that: described negative pressure suction tube route negative inspiratory pressure main (11) and several negative inspiratory pressure arms (13) constitute, the end of described negative inspiratory pressure arm (13) all is provided with annular thin wall air suction structure (14), the upper surface of described air suction structure (14) is provided with the venting port (15) that adapts with air-breathing arm (13), several suction openinies (16) that are uniformly distributed along the circumference on the described air suction structure lower surface are equipped with the sliding door (17) of regulating its opening degree size on suction opening (16).
3. according to the described aluminium annealing furnace of claim 2 exhaust system, it is characterized in that: the cross section of described annular air suction structure (14) is a rectangular configuration.
4. according to the described aluminium annealing furnace of claim 2 exhaust system, it is characterized in that: described suction opening (16) is the rectangle suction opening.
5. return the heater exhaust system according to the arbitrary described aluminium of claim 1-4, it is characterized in that: described malleation admission passage is made of malleation air inlet main (5) and several malleation air intake branches (6), described malleation exhaust line is made of malleation exhaust main (7) and several malleation exhaust branch pipes (8), described malleation air inlet main (5) and described malleation exhaust main (7) are multiple-unit tube, interior pipe is exhaust main (7), and outer tube is air inlet main (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202910545U CN201809414U (en) | 2010-08-13 | 2010-08-13 | Air exhaust system for aluminum annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202910545U CN201809414U (en) | 2010-08-13 | 2010-08-13 | Air exhaust system for aluminum annealing furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201809414U true CN201809414U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202910545U Expired - Fee Related CN201809414U (en) | 2010-08-13 | 2010-08-13 | Air exhaust system for aluminum annealing furnace |
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| CN (1) | CN201809414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585442A (en) * | 2018-04-10 | 2018-09-28 | 连云港亿博材料开发有限公司 | A kind of negative pressure exhaust structure of quartz continuous melting furnace |
-
2010
- 2010-08-13 CN CN2010202910545U patent/CN201809414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585442A (en) * | 2018-04-10 | 2018-09-28 | 连云港亿博材料开发有限公司 | A kind of negative pressure exhaust structure of quartz continuous melting furnace |
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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: 20110427 Termination date: 20150813 |
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| EXPY | Termination of patent right or utility model |