CN212058307U - Zinc oxide volatilizees kiln hood dustproof vapour proof device - Google Patents
Zinc oxide volatilizees kiln hood dustproof vapour proof device Download PDFInfo
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- CN212058307U CN212058307U CN202020664772.6U CN202020664772U CN212058307U CN 212058307 U CN212058307 U CN 212058307U CN 202020664772 U CN202020664772 U CN 202020664772U CN 212058307 U CN212058307 U CN 212058307U
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Abstract
The utility model discloses a zinc oxide volatilizees kiln hood dustproof vapour proof device of kiln hood, including the kiln hood cover, one side of kiln hood cover is connected with the kiln body, and its bottom is equipped with the discharge gate, and the discharge gate is connected with the unloading pipe, and the lower extreme of unloading pipe is connected with the chute, and the lower extreme of chute is connected with the dust collecting chamber, and the lower extreme of dust collecting chamber is connected with the slag bath, and its upper end is connected with the aiutage, and the inboard rotatable coupling of unloading pipe has vertical first steam shelves door, and first steam shelves door is located the entrance of chute, and the inboard rotatable coupling of dust collecting chamber has vertical second steam shelves door, and second steam shelves door is located the exit of chute. The utility model discloses be equipped with first steam shelves door and second steam shelves door in the entry and the export of chute, can block during steam after the slag charge falls into the slag bath is sucked kiln hood cover and gets into the sack cleaner with the flue gas together, avoid steam to make the sack cleaner appear hardened phenomenon in being sucked the sack cleaner, improved the dust removal effect of sack cleaner.
Description
Technical Field
The utility model relates to a kiln equipment technical field volatilizees, in particular to zinc oxide volatilizees dustproof vapour proof device of kiln hood.
Background
The volatilizing kiln is also called as volatilizing kiln, which refers to a rotary calcining kiln (commonly called as rotary kiln), belongs to the building material equipment, and is one of the main equipment in the production and preparation of zinc oxide. The material outlet of the volatilization kiln is arranged at the end part of the kiln head of the volatilization kiln, the kiln head of the volatilization kiln is provided with a kiln head cover, the kiln head cover is provided with a feed opening, calcined slag is conveyed to a slag pool through a chute after being discharged from the feed opening and is cooled, and flue gas generated by calcination is sucked into a bag-type dust collector to be dedusted and then is discharged after being purified through a desulfurizing tower.
Patent application No. CN201720536455.4 discloses a sedimentation tank that volatilizees kiln hood and connect, include the sedimentation tank, locate the slag bath on the sedimentation tank, seted up the cinder notch that falls on the slag bath, the both sides of slag bath are equipped with and keep off the piece, directly over the slag bath, just be located two and keep off and be equipped with a collection cover between the piece, it is hopper-shaped, and its top has the aiutai of a vertical setting to collect the cover.
When the sedimentation tank is used for cooling slag, the slag enters the slag tank through a chute communicated with a slag outlet after being discharged from a material outlet of the volatilization kiln, and is cooled by cooling water in the slag tank. Due to the fact that the temperature of the slag is high, a large amount of water vapor can be generated after the slag falls into the slag pool, the water vapor can be sucked back to the kiln hood through the chute and enters the bag-type dust remover, the water vapor and the smoke are sucked into the bag-type dust remover at the same time, the water vapor can enable the bag-type dust remover to be bonded, and the dust removing effect of the bag-type dust remover on dust in the smoke is affected; when the bag-type dust collector is hardened, the interior of the kiln hood is in positive pressure, and a small amount of smoke is discharged through a gap between the kiln hood and the kiln body to cause environmental pollution; when the sedimentation tank is used for cooling the slag, height difference possibly exists between the slag falling port in the sedimentation tank and the water surface in the slag tank, when the slag falls on the water surface in the slag tank from the slag falling port, a large amount of water vapor can be generated when the slag falls into water, so that the pressure in the sedimentation tank is large, and the dust raising phenomenon is easy to occur.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the dustproof and steam-proof device for the kiln head of the zinc oxide volatilization kiln is simple in structure, water steam can be reduced to enter a bag-type dust remover, the dust removal effect is improved, and the dust raising phenomenon is avoided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a zinc oxide volatilizees kiln hood dustproof vapour proof device of kiln hood, includes the kiln hood cover, and one side of kiln hood cover is connected with the kiln body, and its bottom is equipped with the discharge gate, the discharge gate is connected with the unloading pipe, the lower extreme of unloading pipe is connected with the chute, the lower extreme of chute is connected with the dust collecting chamber, the lower extreme of dust collecting chamber is connected with the slag bath, and its upper end is connected with the aiutage, the inboard rotatable coupling of unloading pipe has vertical first steam shelves door, first steam shelves door is located the entrance of chute, the inboard rotatable coupling of dust collecting chamber has vertical second steam shelves door, second steam shelves door is located the exit of chute.
Furthermore, the lower end of the dust collecting chamber extends into the lower part of the water level in the slag pool.
Further, the dust collecting chamber and/or the exhaust funnel are connected with a high-pressure spraying device, the high-pressure spraying device comprises a liquid storage tank and a main pipe connected with the liquid storage tank, one end of the main pipe is connected with at least 1 spraying pipe, one end, far away from the main pipe, of each spraying pipe extends into the dust collecting chamber or the exhaust funnel, and the spraying pipes are provided with a plurality of spray heads.
Furthermore, the quantity of shower is 3, and one end that one of them shower was kept away from the person in charge stretches into in the dust collecting chamber, and the one end that two other showers were kept away from the person in charge stretches into in the aiutage.
Further, a water pump is arranged in the liquid storage tank and connected with the main pipe.
Further, a sealing device is arranged at the joint of the kiln head cover and the kiln body.
Further, sealing device is including locating kiln body's sealed support, 1 at least quiet sealing washer and sealed preforming, sealed support's top is connected with sealed support, and its inner wall that is close to cover body one side is equipped with 1 at least movable seal circle, quiet sealing washer is connected in kiln hood cover one side that is close to the kiln body, and its and movable seal circle imbed each other and constitute sealed labyrinth structure, sealed preforming include horizontal preforming and with horizontal preforming integrated into one piece's vertical preforming, the one end and the kiln hood of horizontal preforming are connected, the bottom and the sealed leg joint of vertical preforming.
Furthermore, a fastening device is arranged between the sealing bracket and the longitudinal pressing sheet.
Furthermore, the fastening device comprises a screw rod and a connecting plate, the bottom end of the connecting plate is connected with the sealing support, a through hole is formed in the connecting plate, a screw hole is formed in the longitudinal pressing plate, one end of the screw rod penetrates through the through hole to be in threaded connection with the screw hole, and the other end of the screw rod is connected with a nut.
Further, the screw rod is sleeved with a spring and a gasket, one end of the spring is connected with the connecting plate, and the other end of the spring is connected with the gasket.
The utility model relates to a zinc oxide volatilizees kiln hood and prevents vapour device's beneficial effect:
(1) the first water vapor baffle door and the second water vapor baffle door are respectively arranged at the inlet and the outlet of the chute, so that the water vapor of the slag materials falling into the slag pool can be prevented from being sucked into the kiln hood and entering the bag-type dust remover together with the flue gas, the water vapor and the flue gas are separated, the phenomenon that the bag-type dust remover is hardened due to the fact that the water vapor is sucked into the bag-type dust remover is avoided, and the dust removing effect of the bag-type dust remover is improved;
(2) the dust collection chamber connected with the chute and the slag bath is arranged, and the lower end of the dust collection chamber extends into the lower part of the water level in the slag bath to form a water seal, so that the water seal area is enlarged, the pressure formed by water vapor generated when slag falls into the slag bath is reduced, and the risk of dust flying in the slag is reduced, thereby reducing the pollution of dust to the environment and the health of workers;
(3) the utility model discloses a be equipped with static seal circle and movable seal circle and made between static seal circle and the movable seal circle form labyrinth seal structure, speed when having reduced the air current and overflowing has improved sealed effect, has avoided the phenomenon that material and flue gas leaked, has improved the rate of recovery of material, has reduced the pollution to the environment when the flue gas spills.
Drawings
FIG. 1 is a schematic structural view of a kiln head dustproof and steam-proof device of a zinc oxide volatilization kiln of the utility model;
FIG. 2 is a schematic view of a rotatable connection of a first water gate;
fig. 3-is the structure schematic diagram of the sealing device.
The above reference numerals: 1-a kiln head cover, 2-a kiln body, 3-a blanking pipe, 4-a chute, 5-a dust collecting chamber, 6-a slag pool, 7-an exhaust funnel, 8-a first water vapor baffle door, 9-a second water vapor baffle door, 10-a connecting ring, 11-a rotating shaft, 12-a connecting sheet, 13-a liquid storage pool, 14-a main pipe, 15-a first spray pipe, 16-a second spray pipe, 17-a third spray pipe, 18-a first spray head, 19-a second spray head, 20-a third spray head, 21-an exhaust port, 22-an air duct hole, 23-an observation hole, 24-a sealing device, 25-a sealing support, 26-a static sealing ring, 27-a sealing pressing sheet, 28-a transverse pressing sheet, 29-a longitudinal pressing sheet and 30-a dynamic sealing ring, 31-sealing support, 32-reinforcing rib plate, 33-screw, 34-connecting plate, 35-nut, 36-spring and 37-gasket. The arrows in the figure indicate the gas flow direction.
Detailed Description
The present invention is further described with reference to the following drawings and examples, but these embodiments do not limit the scope of the present invention in any way.
Example 1
The utility model provides a zinc oxide volatilizees kiln hood dustproof vapour proof device of kiln hood, includes kiln hood cover 1, and one side of kiln hood cover 1 is connected with the kiln body 2, and its bottom is equipped with the discharge gate, the discharge gate is connected with unloading pipe 3, the lower extreme of unloading pipe 3 is connected with chute 4, the lower extreme of chute 4 is connected with dust collecting chamber 5, the lower extreme of dust collecting chamber 5 is connected with slag bath 6, and its upper end is connected with aiutage 7, the inboard rotatable connection of unloading pipe 3 has vertical first steam shelves door 8, first steam shelves door 8 is located the entrance of chute 4, the inboard rotatable connection of dust collecting chamber 5 has vertical second steam shelves door 9, second steam shelves door 9 is located the exit of chute 4.
The first water vapor shutter 8 is rotatably connected in the following manner: the inner walls of the dust collecting chamber 5 and the blanking pipe 3 are respectively provided with a pair of connecting rings 10, a rotating shaft 11 penetrates through a through hole of the connecting rings 10, the middle part of the rotating shaft 11 is connected with a connecting sheet 12, and the lower end of the connecting sheet 12 is connected with a first water vapor baffle door 8 and a second water vapor baffle door 9. The second water damper 9 is rotatably connected in the same manner as the first water damper 8, and other rotatable connecting structures in the prior art can be adopted.
The slag materials conveyed into the kiln head cover 1 from the kiln body 2 sequentially pass through the discharge hole, the blanking pipe 3, the chute 4 and the dust collecting chamber 5 to enter the slag pool 6, and because the slag materials are high-temperature materials, a large amount of water vapor can be generated when the slag materials are contacted with water in the slag pool 6. The utility model discloses a through be equipped with first steam shelves door 8 and second steam shelves door 9 in the entry and the export of chute 4, when the slag charge is carried to chute 4, fall into slag bath 6 from chute 4 after pushing away first steam shelves door 8 and second steam shelves door 9 under the action of slag charge self gravity, after the slag charge falls into slag bath 6, first steam shelves door 8 and second steam shelves door 9 reply initial position (namely vertical state) under its self action of gravity to seal the entry and the export of chute 4, under the blocking effect of first steam shelves door 8 and second steam shelves door 9, avoided the steam that the slag charge produced when falling into slag bath 6 from chute 4 to be sucked back to the sack cleaner in and lead to the phenomenon of sack cleaner hardening, improved the dust removal effect of sack cleaner, prevented from producing the phenomenon of malleation in the hood 1 because of the sack cleaner hardening, the risk of the flue gas leaking from the gap between the kiln head cover 1 and the kiln body 2 is reduced, thereby reducing the environmental pollution caused by the direct leakage of the flue gas without treatment.
The lower end of the dust collection chamber 5 extends into the lower part of the water level in the slag pool 6.
The dust collecting chamber 5 is arranged between the exhaust funnel 7 and the slag bath 6, and the chute 4 is connected with the dust collecting chamber 5, so that the phenomenon that water is sucked back into the chute 4 when the chute 4 is directly connected with the slag bath 6 can be avoided, and the cloth bag dust removing effect of the volatilization kiln is ensured; the lower extreme of dust collecting chamber 5 stretches into the interior water level below of pond of sediment pond 6, makes the bottom of dust collecting chamber 5 and the surface of water in the sediment pond 6 form the water seal, has improved the water seal area, has reduced the pressure that the steam that produces when falling into sediment pond 6 because of the slag charge formed, promotes subsiding of dust in the slag charge, improves the effect of subsiding of dust in the slag charge, has reduced the risk of dust raise dust in the slag charge to the pollution of dust to the environment and workman's is healthy has been reduced.
The dust collecting chamber 5 and the exhaust stack 7 are connected with a high-pressure spray device, the high-pressure spray device comprises a liquid storage tank 13 and a main pipe 14 connected with the liquid storage tank 13, the number of spray pipes is 3, specifically, a first spray pipe 15, a second spray pipe 16 and a third spray pipe 17, the first spray pipe 15 is arranged on a pipeline in the dust collecting chamber 5 and is provided with 3 first spray heads 18, the left end of the second spray pipe 16 extends into the exhaust stack 7, the second spray pipe 16 is arranged on a pipeline in the exhaust stack 7 and is provided with 3 second spray heads 19, the left end of the third spray pipe 17 extends into the exhaust stack 7, and the third spray pipe 17 is arranged on a pipeline in the exhaust stack 7 and is provided with 3 third spray heads 20.
A water pump is arranged in the liquid storage tank 13 and is connected with the main pipe 14.
The high-pressure spraying device can perform high-pressure spraying treatment on dust in the dust collecting chamber 5 and the exhaust funnel 7, so that the dust falls into the slag pool 6 after being settled, environmental pollution caused by the fact that the dust directly escapes from the exhaust funnel 7 is avoided, and the dust suppression effect is further improved.
The kiln head cover comprises a kiln head cover body 1 and a kiln body 2, and is characterized in that a sealing device 24 is arranged at the joint of the kiln head cover body 1 and the kiln body 2, the top of the kiln head cover body 1 is conical, an exhaust port 21 is formed in the top of the kiln head cover body 1, and the top of the kiln head cover body 1 is conical, so that dust conveyed into the kiln head cover body 1 from the kiln body 2 is collected in a centralized manner and then is sucked into a bag-type dust collector. One side of the kiln head cover 1, which is far away from the kiln body 2, is provided with a duct hole 22, the front of the kiln head cover 1 is provided with an observation hole 23, and the inner side of the kiln head cover 1 is provided with a refractory material lining.
The sealing device 24 comprises a sealing support 25 arranged on the outer wall of the kiln body 2, at least 1 static sealing ring 26 (2 in the embodiment) and a sealing pressing sheet 27, the top end of the sealing support 25 is connected with a sealing support 31, the sealing support 31 is positioned between the sealing support 25 and the kiln head cover 1, a gap is left between the left end of the kiln head cover 1, at least 1 dynamic sealing ring 30 (1 in the embodiment) is arranged on the inner wall of the sealing support 25 close to one side of the kiln head cover 1, the static sealing ring 26 is connected to one side of the kiln head cover 1 close to the kiln body 2, and the sealing pressure plate 27 and the dynamic sealing ring 30 are mutually embedded to form a sealing labyrinth structure, the sealing pressure plate 27 comprises a transverse pressure plate 28 and a longitudinal pressure plate 29 which is integrally formed with the transverse pressure plate 28, one end of the transverse pressing sheet 28 is connected with the right side wall of the kiln head cover 1, and the bottom end of the longitudinal pressing sheet 29 is connected with the sealing bracket 31.
The static sealing ring 26, the dynamic sealing ring 30 and the sealing pressing sheet 27 are arranged to enable flue gas flow escaping from the space between the kiln body 2 and the kiln head cover 1 to sequentially pass through a sealed labyrinth structure formed by the static sealing ring 26 and the dynamic sealing ring 30 from bottom to top, the static sealing ring 26 and the dynamic sealing ring 30 can change the direction of the air flow, the air flow can be blocked, the kinetic energy of the air flow and the air flow carrying dust is weakened, the dust carrying capacity of the air flow and the air flow is reduced, and the sealing effect is improved.
In order to further improve the sealing effect, a fastening device is arranged between the sealing support 31 and the longitudinal pressing sheet 29, the fastening device comprises a screw 33 and a connecting plate 34, the bottom end of the connecting plate 34 is connected with the sealing support 31 and is provided with a through hole, the longitudinal pressing sheet 29 is provided with a screw hole, one end of the screw 33 penetrates through the through hole to be in threaded connection with the screw hole, the other end of the screw is connected with a nut 35, and the screw 33 is fastened on the connecting plate 34 through the nut 35. The kiln head cover 1 is tightly connected with the seal through the arrangement of the screw 33 and the connecting plate 34, so that the phenomenon that most of air flows and is dissipated due to the existence of a gap between the sealing pressing sheet 27 and the kiln head cover 1 is prevented, and the sealing performance of the kiln head cover 1 is further improved.
The screw 33 is sleeved with a spring 36 and a gasket 37, one end of the spring 36 is connected with the connecting plate 34, and the other end of the spring 36 is connected with the gasket 37. The arrangement of the spring 36 can increase the pressure and the friction force between the screw 33 and the longitudinal pressing sheet 29, avoid the phenomenon that the screw 33 loosens and falls to cause the reduction of the sealing effect, and ensure the sealing effect of the sealing device 24.
When the air current leaks from the space between the sealing tablet 27 and the kiln head cover 1, the air current has air pressure to make the longitudinal tablet 29 have pressure towards the screw 33, and the screw 33 is arranged to make the sealing tablet 27 have counter pressure towards the kiln head cover 1, so that the sealing tablet 27 is pressed towards the kiln head cover 1; in addition, when the air flow applies pressure to the longitudinal pressing piece 29, the spring 36 will be compressed, and at this time, the spring 36 will generate a restoring force in the direction toward the kiln head cover 1, so as to further press the sealing pressing piece 27 against the kiln head cover 1, thereby further improving the sealing effect.
And a reinforcing rib plate 32 is arranged between the kiln body 2 and the sealing support 25, and the deformation resistance effect of the sealing support 25 can be enhanced by arranging the reinforcing rib plate 32, so that the stability of the sealing device 24 is improved.
It will be further understood that the terms "first," "second," and the like, are used herein to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
As used herein, the terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation as shown in the figures of the drawings, which may vary from one actual device to another depending on the manner in which the device is arranged.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.
Claims (10)
1. The utility model provides a zinc oxide volatilizees kiln hood and prevents vapour device that prevents dust, includes the kiln hood cover, and one side of kiln hood cover is connected with the kiln body, and is equipped with the discharge gate in its bottom, the discharge gate is connected with the unloading pipe, the lower extreme of unloading pipe is connected with chute, its characterized in that: the lower end of the chute is connected with a dust collecting chamber, the lower end of the dust collecting chamber is connected with a slag bath, the upper end of the dust collecting chamber is connected with an exhaust funnel, the inner side of the blanking pipe is rotatably connected with a vertical first steam stop door, the first steam stop door is positioned at the inlet of the chute, the inner side of the dust collecting chamber is rotatably connected with a vertical second steam stop door, and the second steam stop door is positioned at the outlet of the chute.
2. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 1, which is characterized in that: the lower end of the dust collection chamber extends into the lower part of the water level in the slag pool.
3. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 1, which is characterized in that: the dust collecting chamber and/or the exhaust funnel are/is connected with a high-pressure spraying device, the high-pressure spraying device comprises a liquid storage tank and a main pipe connected with the liquid storage tank, one end of the main pipe is connected with at least 1 spraying pipe, one end, far away from the main pipe, of each spraying pipe extends into the dust collecting chamber or the exhaust funnel, and a plurality of spray heads are arranged on each spraying pipe.
4. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 3, which is characterized in that: the quantity of shower is 3, and one end that one of them shower was kept away from the person in charge stretches into in the dust collecting chamber, and the one end that keeps away from the person in charge of two other showers stretches into in the aiutage.
5. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 3, which is characterized in that: a water pump is arranged in the liquid storage tank and is connected with the main pipe.
6. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 1, which is characterized in that: and a sealing device is arranged at the joint of the kiln head cover and the kiln body.
7. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 6, which is characterized in that: sealing device is including locating kiln body's sealing support, 1 at least quiet sealing washer and sealed preforming, sealing support's top is connected with sealed support, and its inner wall that is close to cover body one side is equipped with 1 at least movable seal circle, quiet sealing washer is connected in kiln hood cover one side that is close to the kiln body, and its and movable seal circle imbed each other and constitute sealed labyrinth structure, sealed preforming include horizontal preforming and with horizontal preforming integrated into one piece's vertical preforming, the one end and the kiln hood of horizontal preforming are connected, the bottom and the sealed leg joint of vertical preforming.
8. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 7, which is characterized in that: and a fastening device is arranged between the sealing bracket and the longitudinal pressing sheet.
9. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 8, which is characterized in that: the fastening device comprises a screw and a connecting plate, the bottom end of the connecting plate is connected with the sealing support, a through hole is formed in the connecting plate, a screw hole is formed in the longitudinal pressing plate, one end of the screw penetrates through the through hole to be in threaded connection with the screw hole, and the other end of the screw is connected with a nut.
10. The dust-proof and steam-proof device for the kiln head of the zinc oxide volatilization kiln as defined in claim 9, which is characterized in that: the screw rod is sleeved with a spring and a gasket, one end of the spring is connected with the connecting plate, and the other end of the spring is connected with the gasket.
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CN202020664772.6U CN212058307U (en) | 2020-04-27 | 2020-04-27 | Zinc oxide volatilizees kiln hood dustproof vapour proof device |
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CN202020664772.6U CN212058307U (en) | 2020-04-27 | 2020-04-27 | Zinc oxide volatilizees kiln hood dustproof vapour proof device |
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