CN114870532A - Ash discharge balancing device and filter - Google Patents
Ash discharge balancing device and filter Download PDFInfo
- Publication number
- CN114870532A CN114870532A CN202210562228.4A CN202210562228A CN114870532A CN 114870532 A CN114870532 A CN 114870532A CN 202210562228 A CN202210562228 A CN 202210562228A CN 114870532 A CN114870532 A CN 114870532A
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- ash
- pipe
- pipe body
- valve
- valve plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
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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
Abstract
The invention discloses an ash discharging balancing device and a filter, which solve the technical problem that in the prior art, a balance pipe is easy to stop due to blockage. An ash discharge balancing device for discharging ash in an ash hopper of a filter, comprising: the first pipe body is connected with the ash bucket; the second pipe body is provided with a vertical pipe arranged inside the first pipe body and a conical pipe extending to the upper part of the ash bucket, an ash discharge channel is arranged inside the second pipe body, and a replacement gas channel is formed between the first pipe body and the vertical pipe and between the ash bucket and the conical pipe; the first valve is used for controlling the opening and closing of the vertical pipe; a second valve for controlling the opening and closing of the replacement gas passage.
Description
Technical Field
The invention relates to the technical field of filter ash discharge, in particular to an ash discharge balancing device and a filter.
Background
For filtering unstable gases (such as coal gas, yellow phosphorus furnace gas, chlorination furnace gas and the like), because ash powder and gases are discharged out of a filter simultaneously during ash discharge, in order to ensure safety, the ash powder can be discharged out of a system after the unstable gases carried in the ash powder are replaced, otherwise, the furnace gas is inevitably leaked, and safety accidents are caused. Therefore, the replacement becomes an indispensable process operation in the filtration and ash discharge of the unstable gas.
The existing replacement method is to erect a balance pipe between a replacement tank and a filter, when ash needs to be discharged, the balance pipe is opened, so that the replacement tank is communicated with an original air cavity of the filter through the balance pipe, and the pressure between the replacement tank and the original air cavity of the filter is the same (or very close), so that ash powder can be discharged to the replacement tank under the action of self weight; meanwhile, injecting replacement gas (usually inert gas) into the replacement tank, so that the gas entering the replacement tank together with the ash returns to the original gas cavity of the filter through the balance pipe; after the replacement is finished, the ash discharge valve and the balance pipe valve are closed, the replacement tank is separated from the filter, and the ash powder in the replacement tank can be safely conveyed by a simple mode (such as an ash conveyor). In addition, the replacement tank can also cool the ash, so that the safety of the discharged ash is further ensured.
However, in filtration practice, there are not a few shutdowns due to balance tube plugging. The balance pipe is designed to be horizontally broken and blocked by ash, the balance pipe is too small or too long to be easily blocked, the balance pipe is not good in heat insulation to cause phase change and to be blocked, and the like. Therefore, the key to reducing the downtime is to optimize the balance tube design.
Disclosure of Invention
The invention mainly aims to provide an ash discharging balancing device and a filter, which aim to solve the technical problem that the prior art is easy to stop due to blockage of a balancing pipe.
In order to achieve the above object, a first aspect of the present invention provides an ash discharge balancing apparatus, comprising:
an ash discharge balancing device for discharging ash in an ash hopper of a filter, comprising: the first pipe body is connected with the ash bucket; the second pipe body is provided with a vertical pipe arranged inside the first pipe body and a conical pipe extending to the upper part of the ash bucket, an ash discharge channel is arranged inside the second pipe body, and a replacement gas channel is formed between the first pipe body and the vertical pipe and between the ash bucket and the conical pipe; the first valve is used for controlling the opening and closing of the vertical pipe; a second valve for controlling the opening and closing of the replacement gas passage.
Thus, the present invention does not contain horizontal displacement gas channels, significantly reducing the risk of plugging; through the formation of the obliquely and vertically placed replacement gas channel, the ash falling into the replacement gas channel from the upper part of the vertebral canal is very easy to discharge from the lower part of the vertical tube, so that the blockage of the replacement gas channel is avoided; meanwhile, the second pipe body is arranged inside the filter, so that the temperature difference between the second pipe body and the filter is small, and phase change substances are not easy to condense and separate out; inside the filter is located to the second body is whole, need not complicated pipeline structure, consequently, replacement gas passage length far short in current balance pipe, difficult deposition. In conclusion, the invention has the advantages of simple and compact structure, convenient processing and manufacturing, no blocking risk and capability of remarkably improving the production efficiency.
As a further development of the first aspect of the invention, the second tubular body is disposed coaxially with the first tubular body. Therefore, an even ash discharge channel and an even replacement gas channel can be formed, dead angles are reduced, and the ash discharge stability is improved.
As a further improvement of the first aspect of the invention, the pipe diameter of the first pipe body is 100-2000 mm, preferably 200-1500 mm, and more preferably 300-1000 mm; the width of the replacement gas channel is 20 to 200mm, preferably 30 to 150mm, and more preferably 50 to 120 mm. Thereby, excellent replacement efficiency and ash discharge efficiency can be obtained.
As a further improvement of the first aspect of the invention, the distance between the top of the vertebral canal and the air inlet of the filter is 300-3000 mm, preferably 500-2000 mm, and more preferably 800-1500 mm. Therefore, the ash can be effectively prevented from falling into the second pipe body.
As a further improvement of the first aspect of the invention, the first valve comprises a valve plate, a valve rod and a swing mechanism, and the diameter of the valve plate is matched with the diameter of the vertical pipe. Therefore, the first valve is simple in structure and good in control effect.
As a further improvement of the first aspect of the present invention, the second valve includes a valve housing, a left valve plate and a right valve plate provided in the valve housing, a left telescopic mechanism for horizontally moving the left valve plate, and a right telescopic mechanism for horizontally moving the right valve plate, the first pipe has a gap adapted to the thicknesses of the left valve plate and the right valve plate, and the left valve plate and the right valve plate form a blocking section adapted to the replacement gas passage when they are butted together after passing through the gap. Therefore, the second valve is simple in structure and good in control effect.
As a further improvement of the first aspect of the present invention, the present invention further comprises a protection mechanism for preventing the ash from falling into the replacement gas channel, wherein the protection mechanism comprises an ash baffle ring arranged at the top of the replacement gas channel. Therefore, the ash is further prevented from falling into the second pipe body.
As a further improvement of the first aspect of the invention, the width of the gap between the top of the vertebral canal and the ash blocking ring is 50-500 mm, preferably 75-300 mm, and more preferably 100-200 mm; the difference of the diameter of the lower part of the ash blocking ring to the diameter of the top of the vertebral canal is 50-300 mm, and the optimal diameter is 100-200 mm. Therefore, the dust blocking effect is good, and the flow resistance of the replacement gas is small.
As a further improvement of the first aspect of the present invention, the present invention further comprises a third pipe, wherein an inlet end of the third pipe is butted with the first pipe, an outlet end of the third pipe is connected with the ash conveying device, and the third pipe is provided with an inlet and an outlet for the replacement gas. From this, the third body is direct to be docked and vertical with first body and is placed, prevents that the ash from blockking up the third body.
As a further improvement of the first aspect of the present invention, the third tube has an expanding section, a vertical tube section and a reduced section which are sequentially connected from top to bottom. Therefore, the pipe diameter of the vertical pipe section is larger than that of the first pipe body, the cooling effect on the ash powder can be achieved, and the expansion section and the reduction section with the gradient are beneficial to quick unloading of the ash powder.
In order to achieve the above object, a second aspect of the present invention provides an ash discharge balancing apparatus, comprising:
the filter is provided with an ash bucket, and further comprises an ash discharge balancing device connected with the ash bucket.
The ash discharge balancing device has the following advantages: (1) the replacement gas channel does not contain a horizontal section which is easily blocked by ash, and a small amount of ash falling into the replacement gas channel can fall and be discharged; (2) the length of the replacement gas channel is far shorter than that of the existing balance pipe, so that dust is not easy to accumulate; (3) the replacement gas channel is positioned inside the filter, has a heat preservation effect, and is easy to condense and separate out phase-change substances. Therefore, the ash discharging balancing device has a simple structure, is not easy to block, can safely and stably discharge ash, is very suitable for discharging ash powder of a filter for filtering unstable gas and high-temperature gas (especially high-temperature high-pressure coal gas), can be used after being simply transformed from the conventional filter, and has extremely high practicability.
The invention is further described with reference to the following figures and detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the invention, and are included to explain the invention and their equivalents and not limit it unduly. In the drawings:
FIG. 1 is a schematic structural view of a first embodiment of an ash discharge balancing apparatus and filter of the present invention.
FIG. 2 is a schematic structural view showing a closed state of a second valve in the first embodiment of the ash discharge balancing unit and the filter according to the present invention.
FIG. 3 is a schematic structural view showing the open state of the second valve in the first embodiment of the ash discharge balancing unit and the filter according to the present invention.
FIG. 4 is a schematic structural view of a first embodiment of the ash discharge balancing apparatus and filter of the present invention.
The relevant references in the above figures are:
100-a first pipe body, 200-a second pipe body, 210-a vertical pipe body, 220-a vertebral pipe, 300-a third pipe body, 310-an expansion section, 320-a vertical pipe section, 330-a reduction section, 400-a first valve, 410-a valve plate, 420-a valve rod, 430-a rotation mechanism, 500-a second valve, 510-a valve shell, 521-a left valve plate, 522-a right valve plate, 531-a left expansion mechanism, 532-a right expansion mechanism, 611-a cylinder body, 612-a pore plate, 613-a filter element, 620-an ash bucket, 710-an ash blocking ring, 001-an ash discharging channel and 002-a replacement gas channel.
Detailed Description
The invention will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to practice the invention based on these descriptions. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in the respective sections including the following description may be combined with each other without conflict.
Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
With respect to terms and units in the present invention. The terms "comprising," "having," and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.
FIG. 1 is a schematic structural view of a first embodiment of an ash discharge balancing apparatus and filter of the present invention. FIG. 2 is a schematic structural view showing a closed state of a second valve in the first embodiment of the ash discharge balancing unit and the filter according to the present invention. FIG. 3 is a schematic structural view showing the open state of the second valve in the first embodiment of the ash discharge balancing unit and the filter according to the present invention.
As shown in fig. 1 to 3, the filter has a filtering structure including a cylinder 611, a perforated plate 612 and a filter element 613, and an ash bucket 620, wherein the cylinder 611 is provided with an air inlet and an air outlet, and the ash bucket 620 is disposed below the cylinder 611. The filter further includes an ash discharge balancing device for discharging ash from the ash hopper 620 of the filter.
The ash discharge balancing apparatus includes a first pipe 100, a second pipe 200, a first valve 400, a second valve 500, and a third pipe 300. A first pipe 100, wherein the first pipe 100 is connected with an ash bucket 620; the second tube 200 is coaxially arranged with the first tube 100, the second tube 200 is provided with a vertical tube 210 arranged inside the first tube 100 and a cone tube 220 extending above the ash bucket 620, the interior of the second tube 200 is provided with an ash discharge channel 001, and a replacement gas channel 002 is formed between the first tube 100 and the vertical tube 210 and between the ash bucket 620 and the cone tube 220; a first valve 400, wherein the first valve 400 is used for controlling the opening and closing of the vertical pipe 210; a second valve 500, the second valve 500 being used to control the opening and closing of the replacement gas passage 002; the inlet end of the third pipe 300 is connected to the first pipe 100, the outlet end is connected to the ash conveying device, and the third pipe 300 is provided with an inlet and an outlet for the replacement gas.
The pipe diameter of the first pipe body 100 is 100-2000 mm, preferably 200-1500 mm, more preferably 300-1000 mm, the width of the replacement gas channel 002 is 20-200 mm, preferably 30-150 mm, more preferably 50-120 mm, and in specific implementation, the pipe diameter/replacement gas channel 002 of the first pipe body 100 can take the value of 100mm/20mm, 200mm/30mm, 300mm/50mm, 700mm/80mm, 900mm/100mm, 1000mm/120mm, 1500mm/150mm or 2000mm/200 mm.
The distance L between the top of the cone 220 and the air inlet of the filter is 300-3000 mm, preferably 500-2000 mm, and more preferably 800-1500 mm, and in specific implementation, L can be 300mm, 400mm, 500mm, 600mm, 800mm, 1000mm, 1200mm, 1500mm, 1800mm, 2000mm, 2400mm, 2800mm, or 3000mm, for example.
The third tube 300 has an enlarged section 310, a vertical tube section 320 and a reduced section 330 connected in sequence from top to bottom, so that the ash bucket 620, the conical tube 220, the enlarged section 310 and the reduced section 330 have a gradient of 55 to 80 °, preferably 60 to 67.5 °, and in specific implementation, the gradient may be 55 °, 58 °, 60 °, 62.5 °, 65 °, 67.5 °, 70 °, 72 °, 74 °, 76 °, 78 ° or 80 °, for example.
The first valve 400 comprises a valve plate 410, a valve rod 420 and a swing mechanism 430, the diameter of the valve plate 410 is matched with that of the vertical pipe 210, and the swing mechanism 430 is used for driving the valve rod 420 and the valve plate 410 to rotate.
The second valve 500 includes a valve housing 510, a left valve plate 521 and a right valve plate 522 disposed in the valve housing 510, a left expansion mechanism 531 for horizontally moving the left valve plate 521, and a right expansion mechanism 532 for horizontally moving the right valve plate 522, wherein a gap adapted to the thickness of the left valve plate 521 and the right valve plate 522 is formed in the first pipe 100, and a blocking section adapted to the replacement gas passage 002 is formed when the left valve plate 521 and the right valve plate 522 are butted to each other after passing through the gap.
FIG. 4 is a schematic structural view of a first embodiment of the ash discharge balancing apparatus and filter of the present invention.
On the basis of the first embodiment, the ash discharge balancing device of the present embodiment further has the following arrangement: still include the protection machanism that prevents the ash from falling into replacement gas passageway 002, protection machanism is including locating the ash blocking ring 710 at replacement gas passageway 002 top.
In order to prevent the soot from being deposited on the soot-blocking ring 710 and to improve the soot-blocking effect, the soot-blocking ring 710 is disposed obliquely downward and extends into the inner side of the vertebral canal 220.
In order to reduce the flow resistance of the replacement gas, the included angle between the dust-blocking ring 710 and the horizontal plane is preferably 30-60 degrees and smaller than the included angle between the vertebral canal 220 and the horizontal plane.
The width D1 of the gap between the top of the vertebral canal 220 and the dust ring 710 is 50-500 mm, preferably 75-300 mm, and more preferably 100-200 mm, and in specific implementation, D1 can be 50mm, 75mm, 100mm, 150mm, 200mm, 250mm, 300mm, 400mm, or 500mm, for example; the difference D2 between the diameter of the lower part of the dust-blocking ring 710 and the diameter of the top of the vertebral canal 220 is 50-300 mm, preferably 100-200 mm, and in specific implementation, D2 can be 50mm, 80mm, 100mm, 120mm, 160mm, 180mm, 200mm, 240mm, 280mm or 300 mm.
In the present invention, in order to maintain the stability of the ash discharge passage 001 and the replacement gas passage 002, it is possible, but not limited to, to further provide reinforcing ribs connecting the first pipe 100/ash hopper 620 and the second pipe 200, the reinforcing ribs preferably being 2 to 4 and symmetrically distributed, and the cross-section of the reinforcing ribs preferably being circular to prevent the deposition of ash.
The contents of the present invention have been explained above. Those skilled in the art will be able to implement the invention based on these teachings. All other embodiments, which can be derived by a person skilled in the art from the above description without inventive step, shall fall within the scope of protection of the present invention.
Claims (10)
1. Unload grey balancing unit for discharge filter's ash in ash bucket (620), its characterized in that: the method comprises the following steps:
the first pipe body (100), the first pipe body (100) is connected with the ash bucket (620);
the second pipe body (200) is provided with a vertical pipe (210) arranged inside the first pipe body (100) and a conical pipe (220) extending into the upper part of the ash bucket (620), an ash discharging channel (001) is arranged inside the second pipe body (200), and replacement gas channels (002) are formed between the first pipe body (100) and the vertical pipe (210) and between the ash bucket (620) and the conical pipe (220);
the first valve (400), the first valve (400) is used for controlling the opening and closing of the vertical pipe (210);
a second valve (500), the second valve (500) being used to control the opening and closing of the replacement gas channel (002).
2. The ash discharge balancing apparatus of claim 1, wherein: the second tube (200) is coaxially disposed with the first tube (100).
3. The ash discharge balancing apparatus of claim 1, wherein: the pipe diameter of the first pipe body (100) is 100-2000 mm, preferably 200-1500 mm, and further preferably 300-1000 mm; the width of the replacement gas channel (002) is 20-200 mm, preferably 30-150 mm, and more preferably 50-120 mm.
4. The ash discharge balancing apparatus of claim 1, wherein: the distance between the top of the vertebral canal (220) and the air inlet of the filter is 300-3000 mm, preferably 500-2000 mm, and further preferably 800-1500 mm.
5. The ash discharge balancing apparatus of claim 1, wherein: the first valve (400) comprises a valve plate (410), a valve rod (420) and a swing mechanism (430), wherein the diameter of the valve plate (410) is matched with the pipe diameter of the vertical pipe (210).
6. The ash discharge balancing apparatus of claim 1, wherein: the second valve (500) comprises a valve casing (510), a left valve plate (521) and a right valve plate (522) which are arranged in the valve casing (510), a left telescopic mechanism (531) enabling the left valve plate (521) to move horizontally and a right telescopic mechanism (532) enabling the right valve plate (522) to move horizontally, a gap matched with the thickness of the left valve plate (521) and the thickness of the right valve plate (522) is formed in the first pipe body (100), and a blocking section matched with the replacement gas channel (002) is formed when the left valve plate (521) and the right valve plate (522) are butted after penetrating through the gap.
7. The ash discharge balancing apparatus of claim 1, wherein: the device also comprises a protection mechanism for preventing ash powder from falling into the replacement gas channel (002), wherein the protection mechanism comprises an ash blocking ring (710) arranged at the top of the replacement gas channel (002); preferably, the width of a gap between the top of the vertebral canal (220) and the ash blocking ring (710) is 50-500 mm, preferably 75-300 mm, and further preferably 100-200 mm; the difference of the diameter of the lower part of the ash blocking ring (710) to the diameter of the top of the vertebral canal (220) is 50-300 mm, preferably 100-200 mm.
8. The ash discharge balancing apparatus of claim 1, wherein: the device is characterized by further comprising a third pipe body (300), wherein the inlet end of the third pipe body (300) is in butt joint with the first pipe body (100), the outlet end of the third pipe body is connected with an ash conveying device, and an inlet and an outlet of replacement gas are formed in the third pipe body (300).
9. The ash discharge balancing apparatus of claim 8, wherein: the third pipe body (300) is provided with an expanding section (310), a vertical pipe section (320) and a reducing section (330) which are sequentially connected from top to bottom.
10. A filter having an ash hopper (620), characterized in that: further comprising an ash discharge balancing device connected to the ash hopper (620) according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210562228.4A CN114870532B (en) | 2022-05-23 | 2022-05-23 | Ash discharging balancing device and filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210562228.4A CN114870532B (en) | 2022-05-23 | 2022-05-23 | Ash discharging balancing device and filter |
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| Publication Number | Publication Date |
|---|---|
| CN114870532A true CN114870532A (en) | 2022-08-09 |
| CN114870532B CN114870532B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210562228.4A Active CN114870532B (en) | 2022-05-23 | 2022-05-23 | Ash discharging balancing device and filter |
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| CN207957164U (en) * | 2018-03-08 | 2018-10-12 | 山东辰能能源科技有限公司 | A kind of gravity ash-discharging device |
| CN208660663U (en) * | 2018-06-05 | 2019-03-29 | 佛山市南海康源机械有限公司 | A kind of ash bucket chamber structure applied in pulsed bag-type dust equipment |
| US20220088522A1 (en) * | 2019-03-07 | 2022-03-24 | David E. Sisk | Dust and debris filtration system for cleaning air used in the conveyance of granular material to and from the silo, dry bulk trailer, rail car, and other transportation and conveying means |
| CN111359335A (en) * | 2020-03-31 | 2020-07-03 | 成都易态科技有限公司 | Ash discharge device and ash discharge method |
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