CN114247216A - Cloth bag replacing device and method for blast furnace coal-injection powder-making dust remover - Google Patents
Cloth bag replacing device and method for blast furnace coal-injection powder-making dust remover Download PDFInfo
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- CN114247216A CN114247216A CN202011015069.3A CN202011015069A CN114247216A CN 114247216 A CN114247216 A CN 114247216A CN 202011015069 A CN202011015069 A CN 202011015069A CN 114247216 A CN114247216 A CN 114247216A
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- rope
- fixed
- cloth bag
- bag
- movable pulley
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- 239000000428 dust Substances 0.000 title claims abstract description 59
- 239000004744 fabric Substances 0.000 title claims abstract description 59
- 238000002347 injection Methods 0.000 title claims abstract description 13
- 239000007924 injection Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 15
- 239000003245 coal Substances 0.000 claims abstract description 8
- 239000002699 waste material Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 230000036541 health Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000571 coke Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a cloth bag replacing device of a dust collector for coal injection of a blast furnace, which comprises a traction rope, a fixed rope and a horizontally arranged sliding rope, wherein one end of the traction rope is connected with a winch through a fixed pulley, the other end of the traction rope is suspended with a hoisting device through a movable pulley, the movable pulley is suspended on the sliding rope and can slide along the sliding rope, the movable pulley is also connected with one end of the fixed rope, and when the traction rope applies traction force, the fixed rope enables the movable pulley to be fixed on the sliding rope. The invention has high construction efficiency, reduces the number of constructors, can reduce the labor load and has less harm to the health of the constructors.
Description
Technical Field
The invention relates to the field of replacement and maintenance of a cloth bag of a dust collector, in particular to a device and a method for replacing a cloth bag of a dust collector for coal injection powder production of a blast furnace.
Background
With the rapid development of the steel industry in recent years, ore resources and coke resources are increasingly tense, and energy conservation and consumption reduction become a serious trend of the development of the steel industry. The energy consumption of an iron-making system accounts for about 70 percent of the total energy consumption of the steel industry, and is a genuine big consumer of energy consumption, and the effects of reducing the coke ratio and enriching the regulation means at the lower part of the blast furnace, which are played by the pulverized coal injection of the blast furnace in the production of the blast furnace, form a consensus. In view of the continuous upgrading of the environmental protection requirement in recent years, the replacement period of the bag of the dust collector at the top of the blast furnace coal injection and pulverization bin is further shortened.
The existing method for replacing the cloth bag mainly adopts manual drawing as a main part, the cloth bag and the bag cage are drawn out from a bin by using manpower (drawing with two hands), the replacement task can be completed by transferring a plurality of groups of personnel, and about 40 people are required to be invested for 24 hours for replacing the cloth bag of the dust remover every time. Meanwhile, the dust is adhered to the outer side of the waste cloth bag, so that the dust at an operation point is serious, and the occupational health of staff is greatly harmed, therefore, the dust collector cloth bag replacing device and method which are improved and better designed for the original dust collector cloth bag overhauling process are problems to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cloth bag replacing device of a blast furnace coal-injection powder-making dust remover, which has high construction efficiency, reduces labor load and has small harm to the health of constructors, so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a device is changed to blast furnace coal-spraying system dust shaker sack, includes the slip rope that a haulage rope, a fixed rope and a level set up, the one end of haulage rope is passed through the fixed pulley and is connected with the hoist engine, the haulage rope other end hangs a hoisting device through portable pulley, portable pulley hangs and can follow the slip rope and slide on the slip rope, portable pulley still is connected with the one end of fixed rope, and when traction force was applyed to the haulage rope, fixed rope made portable pulley fixed motionless on the slip rope.
Preferably, the lifting device is a hook.
Preferably, a frame construction is still connected to the haulage rope other end, the couple is a plurality of, sets up below frame construction.
Preferably, the fixed rope is fixed in an inclined direction, and the fixed rope is opposite to the horizontal component force acting on the movable pulley by the traction rope.
Preferably, the hauling rope is a steel wire rope, and the sliding rope is a steel wire rope.
The invention also provides a cloth bag replacing method of the blast furnace coal injection dust making dust remover, which comprises the following steps:
a) a sliding rope is fixedly arranged above the dust remover along the horizontal direction, the upper end of the fixed rope is fixed on a movable pulley, the movable pulley is hung on the sliding rope, one end of a traction rope is connected with a winch, and the other end of the traction rope is connected with a lifting device through a fixed pulley and the movable pulley in sequence;
b) opening a top cover plate of the dust remover, and cleaning dust in a dust remover bin;
c) fixing a lifting device at the edge part of the waste bag cage, fixing the lower end of a fixed rope at the top of a dust remover, starting a winch to pull a traction rope, detaching and lifting the bag cage to the bottom of the bag cage beyond the top of the dust remover by a certain distance, loosening the lower end of the fixed rope, pulling the fixed rope to enable a movable pulley to slide along a sliding rope, and lifting the waste bag cage to a specified point;
d) fixing a hoisting device at the edge part of the waste cloth bag, fixing the lower end of a fixed rope at the top of a dust remover, starting a winch to pull a traction rope, detaching and lifting the cloth bag to the bottom of the cloth bag beyond the top of the dust remover by a certain distance, loosening the lower end of the fixed rope, pulling the fixed rope to enable a movable pulley to slide along a sliding rope, and hoisting the waste cloth bag to a specified point;
e) after the bag cage and the cloth bag are removed, the dust in the dust collector bin is cleaned;
f) after the interior of the bin is cleaned up, firstly installing a cloth bag, fixing the cloth bag on a lifting device, moving a movable pulley through a fixed rope, lifting the cloth bag above an installation position, starting a winch, descending a traction rope, manually and slightly matching to install the cloth bag in place, and then confirming that a cloth bag opening is tightly combined with a pattern plate in the bin;
g) the bag cage is fixed on the lifting device, the movable pulley is moved through the fixed rope, the bag cage is lifted above the installation position, the winch is started, the traction rope is descended, the bag cage can be installed in place through manual work by slight matching, and then the bag cage opening is confirmed to be tightly combined with the bag opening.
As mentioned above, the invention is a cloth bag replacing device and method for a blast furnace coal-injection dust-making dust remover, which has the following beneficial effects:
the bag replacing device for the dust collector uses the winch as power drive, pulls the traction rope to disassemble and assemble the bag of the dust collector, replaces a manual disassembling and assembling method of manual drawing, shortens the construction time and improves the replacing efficiency of the bag of the dust collector; the method for pulling the lifting device through the traction rope and pulling the movable pulley to slide on the sliding rope through the fixed rope replaces the original method for repeatedly pulling and transferring by multiple persons, so that uninterrupted repeated operation of a large number of persons is avoided, the construction time is greatly shortened, the labor load is effectively reduced, meanwhile, the persons are prevented from being exposed in a dangerous environment with excessive dust, and the occupational health of the staff is ensured.
Drawings
FIG. 1 is a schematic view of a bag replacing device of a dust collector of the present invention.
Fig. 2 is a schematic view of a bag replacing device of the dust collector of the invention.
Fig. 3 is a partially enlarged view of the trolley of fig. 1.
In the figure:
1. winch 2, fixed pulley 3, traction rope 4, sliding rope 5, movable pulley 6, frame structure 7, hoisting device 8 and fixed rope
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The structures, proportions, and dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the skilled in the art. In addition, the terms "upper", "lower", "front", "rear" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.
As shown in fig. 1 and 2, the device is changed to blast furnace coal-injection dust collector sack, including the slip rope 4 of a haulage rope 3, a fixed rope 8 and a level setting, the one end of haulage rope 3 is passed through fixed pulley 2 and is connected with hoist engine 1, and the hoist engine adopts motor drive, can improve and change efficiency, a hoisting apparatus 7 is hung through movable pulley 5 to the haulage rope 3 other end, and hoisting apparatus 7 can be connected with the upper end of bag cage or sack to lift by crane. The movable pulley 5 is hung on the sliding rope 4 and can slide along the sliding rope 4, the movable pulley 5 is also connected with one end of a fixed rope 8, and when the traction rope 3 applies traction force, the fixed rope 8 enables the movable pulley 5 to be fixed on the sliding rope 4. The fixed pulley 2 is used for changing the direction of the traction rope 3, and the waste cloth bag and the bag cage can be rapidly detached and installed in place.
As shown in fig. 2, in this embodiment, the lifting device 7 is a hook, and when the bag cage and the cloth bag are replaced, the hook is fixed at the edge of the bag cage and the cloth bag.
As shown in fig. 3, in this embodiment, the other end of the pulling rope 3 is further connected to a frame structure 6, a plurality of hooks 7 are uniformly arranged below the frame structure 6, and the distance between the hooks is consistent with the distance between the openings of the adjacent cloth bags in the dust collector bin, so that the simultaneous removal or installation of a plurality of cloth bags can be realized.
In this embodiment, the fixing rope 8 is fixed in an inclined direction, and the fixing rope 8 is opposite to the horizontal component force acting on the movable pulley 5 by the traction rope 3, so that the movable pulley 5 is balanced in stress and can be fixed on the sliding rope 4 in the cloth bag removing process.
In this embodiment, the hauling rope 3 is a steel wire rope, and the sliding rope 4 is a steel wire rope. The steel wire rope can transmit long-distance load, has high bearing safety factor and is safe and reliable to use.
The embodiment also provides a method for replacing the cloth bag of the dust collector for making coal powder by using the blast furnace coal injection, which comprises the following steps:
a) a sliding rope 4 is fixedly arranged above the dust remover along the horizontal direction, the upper end of a fixed rope 8 is fixed on a movable pulley 5, the movable pulley 5 is hung on the sliding rope 4, one end of a traction rope 3 is connected with a winch 1, and the other end of the traction rope is connected with a hook 7 sequentially through a fixed pulley 2 and the movable pulley 5;
b) opening a top cover plate of the dust remover, and cleaning dust in a dust remover bin;
c) fixing a hook 7 at the edge part of the waste bag cage, fixing the lower end of a fixed rope 8 at the top of the dust remover, starting a winch 1 to pull a traction rope 3, dismantling the bag cage, lifting the bag cage to the bottom of the bag cage to exceed the top of the dust remover by a distance, loosening the lower end of the fixed rope 8, pulling the fixed rope 8 to enable a movable pulley 5 to slide along a sliding rope 4, lifting the waste bag cage to a specified point, and improving the construction efficiency; during the movement of the movable pulley 5, the traction rope 3 is released or wound up accordingly.
d) Fixing a hook 7 at the edge part of the waste cloth bag, fixing the lower end of a fixed rope 8 at the top of a dust remover, starting a winch 1 to pull a traction rope 3, dismantling the cloth bag, lifting the cloth bag to the bottom of the cloth bag to exceed the top of the dust remover by a distance, loosening the lower end of the fixed rope 8, pulling the fixed rope 8 to enable a movable pulley 5 to slide along a sliding rope 4, hoisting the waste cloth bag to a specified point, and improving the construction efficiency; during the movement of the movable pulley 5, the traction rope 3 is released or wound up accordingly.
e) After the bag cage and the cloth bag are removed, the dust in the dust collector bin is cleaned;
f) after the interior of the bin is cleaned up, firstly installing a cloth bag, fixing the cloth bag on a hook 7, moving a movable pulley 5 through a fixed rope 8, hoisting the cloth bag to the upper part of an installation position, starting a winch 1, descending a traction rope 3, installing the cloth bag in place through manual work by slightly matching, and then confirming that the mouth of the cloth bag is tightly combined with the pattern plate in the bin;
g) then, a bag cage is installed, the bag cage is fixed on a hook 7, the movable pulley 5 is moved through the fixed rope 8, the bag cage is lifted to the upper side of an installation position, the winch 1 is started, the traction rope 3 is lowered, the bag cage can be installed in place through manual work by slightly matching, and then the bag cage opening is confirmed to be tightly combined with the bag opening.
After the method is used, the construction efficiency of replacing the cloth bag of the coal-injection powder-making dust collector of the blast furnace can be greatly improved, the cloth bag replacement efficiency can be improved by 1-2 times, the overhaul time is reduced from 24 hours to 12-16 hours, nearly half of labor is reduced, meanwhile, the personnel are prevented from being exposed in the dangerous environment with excessive dust for a long time, and the occupational health of the personnel is ensured.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Many modifications may be made to the present invention without departing from the spirit or scope of the general inventive concept, and it will be apparent to those skilled in the art that changes and modifications may be made to the above-described embodiments without departing from the spirit or scope of the invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a device is changed to blast furnace coal-spraying system dust shaker sack, its characterized in that, includes slide rope (4) that haulage rope (3), a fixed rope (8) and a level set up, the one end of haulage rope (3) is passed through fixed pulley (2) and is connected with hoist engine (1), haulage rope (3) other end hangs a hoisting device (7) through portable pulley (5), portable pulley (5) are hung on slide rope (4) and can be followed slide rope (4) and slide, portable pulley (5) still are connected with the one end of fixed rope (8), when haulage rope (3) apply traction force, fixed rope (8) make portable pulley (5) immovable on slide rope (4).
2. The cloth bag changing device according to claim 1, characterized in that the lifting device (7) is a hook.
3. The cloth bag changing device according to claim 2, characterized in that the other end of the pulling rope (3) is further connected with a frame structure (6), and a plurality of hooks are arranged below the frame structure (6).
4. Cloth bag changing device according to claim 1, characterized in that the fixation rope (8) is fixed in an oblique direction, and that the fixation rope (8) is opposite to the horizontal force component of the pulling rope (3) acting on the movable pulley (5).
5. The bag changing device according to claim 1, wherein the pulling rope (3) is a steel wire rope and the sliding rope (4) is a steel wire rope.
6. A method for replacing a cloth bag of a dust collector for coal powder injection of a blast furnace is characterized by comprising the following steps:
a) a sliding rope (4) is fixedly arranged above the dust remover along the horizontal direction, the upper end of a fixed rope (8) is fixed on a movable pulley (5), the movable pulley (5) is hung on the sliding rope (4), one end of a traction rope (3) is connected with a winch (1), and the other end of the traction rope is connected with a hoisting device (7) through a fixed pulley (2) and the movable pulley (5) in sequence;
b) opening a top cover plate of the dust remover, and cleaning dust in a dust remover bin;
c) fixing a lifting device (7) at the edge part of the waste bag cage, fixing the lower end of a fixed rope (8) at the top of a dust remover, starting a winch (1) to pull a traction rope (3), dismantling the bag cage, lifting the bag cage to the bottom of the bag cage to exceed the top of the dust remover by a distance, loosening the lower end of the fixed rope (8), pulling the fixed rope (8) to enable a movable pulley (5) to slide along a sliding rope (4), and lifting the waste bag cage to a specified point;
d) fixing a lifting device (7) at the edge part of the waste cloth bag, fixing the lower end of a fixed rope (8) at the top of a dust remover, starting a winch (1) to pull a traction rope (3), detaching the cloth bag, lifting the cloth bag to the bottom of the cloth bag to exceed the top of the dust remover by a distance, loosening the lower end of the fixed rope (8), pulling the fixed rope (8) to enable a movable pulley (5) to slide along a sliding rope (4), and lifting the waste cloth bag to a specified point;
e) after the bag cage and the cloth bag are removed, the dust in the dust collector bin is cleaned;
f) after the interior of the bin is cleaned up, firstly installing a cloth bag, fixing the cloth bag on a lifting device (7), moving a movable pulley (5) through a fixed rope (8), lifting the cloth bag to the upper part of an installation position, starting a winch (1), descending a traction rope (3), slightly matching with the worker to install the cloth bag in place, and then confirming that the mouth of the cloth bag is tightly combined with the pattern plate in the bin;
g) the bag cage is fixed on a lifting device (7), the movable pulley (5) is moved through the fixed rope (8), the bag cage is lifted to the upper side of an installation position, the winch (1) is started, the traction rope (3) is descended, the bag cage can be installed in place through manual work by slightly matching, and then the bag cage opening is confirmed to be tightly combined with the bag opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015069.3A CN114247216A (en) | 2020-09-24 | 2020-09-24 | Cloth bag replacing device and method for blast furnace coal-injection powder-making dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015069.3A CN114247216A (en) | 2020-09-24 | 2020-09-24 | Cloth bag replacing device and method for blast furnace coal-injection powder-making dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114247216A true CN114247216A (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011015069.3A Pending CN114247216A (en) | 2020-09-24 | 2020-09-24 | Cloth bag replacing device and method for blast furnace coal-injection powder-making dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114247216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386670A (en) * | 2022-08-26 | 2022-11-25 | 北京首钢股份有限公司 | Blast furnace blow-off valve replacing device and replacing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129336A (en) * | 1999-11-05 | 2001-05-15 | Ishikawajima Harima Heavy Ind Co Ltd | Filter cloth replacing apparatus of bag filter |
| CN2670319Y (en) * | 2003-09-23 | 2005-01-12 | 程木根 | Household crane |
| CN204551477U (en) * | 2015-03-05 | 2015-08-12 | 中铁大桥局集团第五工程有限公司 | A kind of cable transmission lifting appliance |
| US20150231545A1 (en) * | 2014-02-20 | 2015-08-20 | Primex Process Specialists, Inc. | Suspendable Filter Bag System |
| CN107670431A (en) * | 2017-10-16 | 2018-02-09 | 攀钢集团矿业有限公司 | A kind of dust-removal cloth-bag replacing options and dust-removal cloth-bag more changing device |
| CN109126309A (en) * | 2018-09-11 | 2019-01-04 | 中冶宝钢技术服务有限公司 | Dust-removal cloth-bag skeleton removes special hanger and its application method |
-
2020
- 2020-09-24 CN CN202011015069.3A patent/CN114247216A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129336A (en) * | 1999-11-05 | 2001-05-15 | Ishikawajima Harima Heavy Ind Co Ltd | Filter cloth replacing apparatus of bag filter |
| CN2670319Y (en) * | 2003-09-23 | 2005-01-12 | 程木根 | Household crane |
| US20150231545A1 (en) * | 2014-02-20 | 2015-08-20 | Primex Process Specialists, Inc. | Suspendable Filter Bag System |
| CN204551477U (en) * | 2015-03-05 | 2015-08-12 | 中铁大桥局集团第五工程有限公司 | A kind of cable transmission lifting appliance |
| CN107670431A (en) * | 2017-10-16 | 2018-02-09 | 攀钢集团矿业有限公司 | A kind of dust-removal cloth-bag replacing options and dust-removal cloth-bag more changing device |
| CN109126309A (en) * | 2018-09-11 | 2019-01-04 | 中冶宝钢技术服务有限公司 | Dust-removal cloth-bag skeleton removes special hanger and its application method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386670A (en) * | 2022-08-26 | 2022-11-25 | 北京首钢股份有限公司 | Blast furnace blow-off valve replacing device and replacing method thereof |
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Application publication date: 20220329 |
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