CN114989838B - Method for replacing hopper at lower part of loading device - Google Patents
Method for replacing hopper at lower part of loading device Download PDFInfo
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- CN114989838B CN114989838B CN202210657988.3A CN202210657988A CN114989838B CN 114989838 B CN114989838 B CN 114989838B CN 202210657988 A CN202210657988 A CN 202210657988A CN 114989838 B CN114989838 B CN 114989838B
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- trolley
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention belongs to the technical field of dry quenching processes, and discloses a method for replacing a hopper at the lower part of a loading device, which comprises the following steps: keeping the furnace cover to seal the furnace opening, and disconnecting the hopper trolley from the driving trolley; removing the bell and the sliding cover; manufacturing and arranging a substitute support seat on the hopper trolley to support the upper hopper and disconnect the hopper support from the hopper trolley; disconnecting the upper hopper from the lower hopper, and lowering the lower hopper to a supporting position below the upper hopper; moving the hopper trolley to one side of the lower hopper, and replacing the lower hopper at the supporting position to be a spare lower hopper; moving the hopper trolley to the position above the standby lower hopper, and fixedly connecting the standby lower hopper to the upper hopper; fixing a hopper bracket of the standby lower hopper to the hopper trolley; reloading the material bell into the spare lower hopper and the upper hopper, and reloading the sliding cover to the lower end of the spare lower hopper; and connecting the driving trolley and the hopper trolley to finish replacement. The lower hopper is fast to replace and high in efficiency.
Description
Technical Field
The invention relates to the technical field of dry quenching processes, in particular to a method for replacing a hopper at the lower part of a loading device.
Background
The coke dry quenching charging device mainly comprises a charging hopper, a driving device, a hopper trolley, a dust collecting device and the like, wherein the charging hopper comprises an upper hopper and a lower hopper, a charging bell is arranged in the hopper, and the lower hopper mainly has the function of charging red coke into the coke dry quenching furnace and simultaneously is used together with a water seal cover to prevent coke powder from overflowing. When the lower hopper is damaged to cause the dry quenching coke to be unable to be charged into the dry quenching furnace, the lower hopper must be replaced or repaired.
At present, a method for replacing a lower hopper is a production stop cooling replacement method, when the lower hopper is to be replaced, dry quenching production needs to be stopped, coke in a dry quenching furnace is completely extinguished, and then the temperature of a mouth of the dry quenching furnace is reduced to be suitable for overhaul by maintainers, and then the lower hopper is replaced.
However, the method needs the time for cooling the dry quenching furnace and recovering the dry quenching production, the time is as long as 5-6 days, and the normal production of the dry quenching and the coke supply of the blast furnace are seriously influenced.
Disclosure of Invention
The invention aims to provide a method for replacing a hopper at the lower part of a loading device, which ensures that a dry quenching furnace does not go through the whole process of production stop, temperature reduction, temperature rise and trial production, and has high replacement speed and high efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for replacing a lower hopper of a loading device is used for replacing the lower hopper of the loading device in a dry quenching equipment system, the dry quenching equipment system comprises a dry quenching furnace, the loading device and a lifter, and the top of the dry quenching furnace is provided with a furnace mouth; the loading device comprises a rail, a furnace cover unit, a material distribution unit and a driving unit, wherein the rail is arranged at the top of the dry quenching furnace; the furnace cover unit comprises a driving trolley and a furnace cover, the furnace cover is arranged on the driving trolley, and the driving trolley is arranged on the track in a walking manner; the distributing unit comprises a hopper trolley, a hopper support, a lower hopper, an upper hopper, a sliding cover and a bell, the hopper support is arranged on the hopper trolley, the lower hopper is arranged on the hopper support, the upper hopper is fixedly connected to the upper end of the lower hopper, the sliding cover is arranged at the lower end of the lower hopper, the bell is arranged in the upper hopper and the lower hopper, and the hopper trolley is arranged on the track in a walking manner and is connected with the driving trolley; the driving unit is arranged at intervals on the track along the extending direction of the track, the furnace cover unit is positioned between the driving unit and the hopper trolley, the output end of the driving unit is connected with the furnace cover unit so as to drive the furnace cover to open or close the furnace opening, the lower hopper is butted with the furnace opening when the furnace opening is opened by the furnace cover, and the lower hopper is positioned at an overhaul position when the furnace opening is closed by the furnace cover; the method for replacing the lower hopper of the loading device comprises the following steps:
s1, keeping the furnace cover to seal the furnace opening, and disconnecting the hopper trolley from the driving trolley;
s2, removing the bell and the sliding cover;
s3, manufacturing and arranging a substitute support seat on the hopper trolley to support the upper hopper and disconnecting the hopper support from the hopper trolley;
s4, disconnecting the upper hopper from the lower hopper, and lowering the lower hopper to a supporting position below the upper hopper;
s5, moving the hopper trolley to one side of the lower hopper, and replacing the lower hopper at the supporting position to be a spare lower hopper;
s6, moving the hopper trolley to the position above the standby lower hopper, and fixedly connecting the standby lower hopper to the upper hopper;
s7, fixing a hopper bracket of the standby lower hopper to the hopper trolley;
s8, reloading the bell into the standby lower hopper and the upper hopper, and reloading the sliding cover to the lower end of the standby lower hopper;
and S9, connecting the driving trolley with the hopper trolley.
Optionally, the method further comprises the following steps:
s10, before the step S5, disconnecting the driving trolley from the furnace cover;
s11, connecting the furnace cover and the driving trolley after the step S6;
moving the hopper car to one side of the lower hopper in step S5 includes: and moving the hopper trolley and the driving trolley to one end of the track close to the driving unit.
Alternatively,
between step S10 and step S5, further comprising: connecting the drive trolley and the hopper trolley;
between step S5 and step S6, further comprising: the driving trolley is disconnected with the hopper trolley.
Alternatively,
between step S1 and step S2, comprising: s12, moving the hopper trolley to one end, far away from the driving unit, of the track;
between step S6 and step S9: s13, moving the hopper trolley to the overhaul position.
Alternatively, step S13 is performed between step S6 and step S7.
Optionally, the dry quenching apparatus system further comprises a lifter for delivering the raw material to the upper hopper, and moving the lifter to above an end of the rail near the driving unit while step S12 is performed.
Optionally, the hopper trolley comprises a first frame, a second frame and two cross beams, the first frame and the second frame are arranged on the track side by side, each cross beam is arranged at an interval in the extending direction of the track, one end of each cross beam is connected to the first frame, the other end of each cross beam is connected to the second frame, the lower hopper is positioned between the first frame, the second frame and the two cross beams, the lower end of the lower hopper is lower than the first frame, the second frame and the two cross beams,
before step S2, further comprising: s14, arranging a door-shaped avoiding frame, enabling one end of the door-shaped avoiding frame to be connected to the first frame, enabling the other end of the door-shaped avoiding frame to be connected to the second frame, and enabling the door-shaped avoiding frame to be located on one side, away from the lower hopper, of any cross beam;
step S2 further includes: removing one of the cross beams adjacent to the door-type avoidance frame from the two cross beams;
step S8 further includes: and reinstalling the disassembled beam.
Optionally, in step S14, the door-shaped avoidance frame is disposed on a side of the hopper car away from the driving unit.
Optionally, the loading device includes a plurality of columns, a lower end of each column is disposed on the hopper support, an upper end of each column is disposed on the upper hopper, and the step S3 of manufacturing and disposing a substitute support seat on the hopper car to support the upper hopper includes: and arranging the replacing supporting seats on the hopper trolley, supporting each upright post by a jack, fixedly connecting each upright post to the replacing supporting seats, and removing the jack.
Optionally, before step S1, the pressure of a pre-storage chamber in the dry quenching furnace is adjusted to maintain the negative pressure at the furnace mouth.
Has the beneficial effects that:
in the process of replacing the lower hopper, the furnace cover is sealed on the furnace mouth, so that the dry quenching coke is continuously kept in production in the dry quenching furnace, no connection exists between the hopper trolley and the driving trolley, the lower hopper on the hopper trolley is replaced, the driving trolley can not be driven to run, the sealing of the furnace cover on the furnace mouth is further influenced, the stable production of the dry quenching coke is kept, meanwhile, the outward radiation of high temperature of the furnace mouth is avoided, and the safety of the operation process of replacing the lower hopper is enhanced. In the process of replacing the lower hopper, the dry quenching furnace does not need to be subjected to the processes of production halt, cooling, heating and trial production, so that the replacement time is saved.
Drawings
FIG. 1 is an elevation view of a dry quenching device system provided by an embodiment of the invention;
FIG. 2 is a side view of a dry quenching device system provided by an embodiment of the invention;
FIG. 3 is a side view of a canopy unit in a dry quenching apparatus system provided by an embodiment of the invention;
fig. 4 is a flow chart of a method for replacing a lower hopper of a loading device according to an embodiment of the present invention.
In the figure:
100. a distributing unit; 101. a hopper trolley; 1011. a cross beam; 102. a hopper holder; 1021. a support beam; 103. a lower hopper; 104. an upper hopper; 105. a sliding cover; 106. a material clock; 107. a sealing curtain; 108. a column; 109. a gantry type avoidance frame; 110. replacing the supporting seat;
200. a furnace lid unit; 201. driving the trolley; 202. a furnace cover; 203. a guide bar; 204. a connecting beam; 205. a link mechanism;
300. a drive unit;
400. a track;
500. a furnace mouth;
600. a hoist;
700. and (7) connecting pins.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
Fig. 1 illustrates a front view of a dry quenching device system provided by the present embodiment, and fig. 2 illustrates a side view of the dry quenching device system provided by the present embodiment. Specifically, as shown in fig. 1 and fig. 2, the coke dry quenching equipment system comprises a coke dry quenching furnace, a loading device and a lifter 600, wherein a furnace mouth 500 is formed at the top of the coke dry quenching furnace; the loading device comprises a track 400, a furnace cover unit 200, a material distribution unit 100 and a driving unit 300, wherein the track 400 is arranged at the top of the dry quenching furnace; the furnace cover unit 200 comprises a driving trolley 201 and a furnace cover 202, wherein the furnace cover 202 is arranged on the driving trolley 201, and the driving trolley 201 is arranged on the track 400 in a walking manner; the material distribution unit 100 comprises a hopper trolley 101, a hopper support 102, a lower hopper 103, an upper hopper 104, a sliding cover 105 and a bell 106, wherein the hopper support 102 is arranged on the hopper trolley 101, the lower hopper 103 is arranged on the hopper support 102, the upper hopper 104 is fixedly connected to the upper end of the lower hopper 103, the sliding cover 105 is arranged at the lower end of the lower hopper 103, the bell 106 is arranged in the upper hopper 104 and the lower hopper 103, and the hopper trolley 101 is arranged on a track 400 in a walking manner and is connected with a driving trolley 201; the driving unit 300 is arranged at intervals from the rail 400 along the extending direction of the rail 400, the furnace cover unit 200 is positioned between the driving unit 300 and the hopper trolley 101, the output end of the driving unit 300 is connected with the furnace cover unit 200 so as to drive the furnace cover 202 to open or close the furnace opening 500, the lower hopper 103 is butted with the furnace opening 500 when the furnace cover 202 opens the furnace opening 500, and the lower hopper 103 is positioned at the maintenance position when the furnace cover 202 closes the furnace opening 500.
Fig. 4 shows a flow chart of the method for replacing the lower hopper of the loading device provided by the embodiment. The method for replacing the lower hopper of the loading device is used for replacing the lower hopper 103 of the loading device in the coke dry quenching equipment system. Specifically, the method for replacing the lower hopper of the loading device provided by the embodiment comprises the following steps:
s1, keeping the furnace cover 202 to close the furnace opening 500, and disconnecting the hopper trolley 101 from the driving trolley 201. The furnace cover 202 seals the furnace opening 500, so that the normal operation environment in the dry quenching furnace is ensured, the dry quenching furnace is kept in high-temperature operation, and meanwhile, the personal threat of the high temperature and the flame of the furnace opening 500 to the working personnel is also avoided. The hopper carriage 101 and the drive carriage 201 are disconnected from each other, and the drive carriage 201 is not affected by the movement of the hopper carriage 101 in the process of replacing the lower hopper 103, thereby avoiding the opening of the furnace cover 202 by the drive carriage 201. In this embodiment, the hopper carriage 101 and the driving carriage 201 are connected by the connecting pin 700, and the two carriages can be connected or disconnected by inserting or removing the connecting pin 700. In order to reliably seal the furnace cover 202 at the furnace mouth 500, optionally, before step S1, the pressure in the pre-storage chamber in the dry quenching furnace is adjusted to maintain the furnace mouth 500 at a negative pressure.
S2, removing the bell 106 and the sliding cover 105. The load on the hopper carriage 101 can be reduced, and the positional interference with the lower hopper 103 can be reduced, thereby facilitating further work. In this embodiment, the bell 106 is removed by using a hoisting technique commonly used in the prior art, and will not be described herein. In this embodiment, the sliding hood 105 is attached to the lower end of the lower hopper 103 by a sealing curtain 107, and the sealing curtain 107 is removed while the sliding hood 105 is removed.
And S3, manufacturing and arranging the hopper support bracket on the hopper trolley 101 instead of the support base 110 so as to support the upper hopper 104 and disconnect the hopper support bracket 102 from the hopper trolley 101. That is, by providing the substitute support base 110, the load applied to the hopper holder 102 by the entire upper hopper 104 and the lower hopper 103 is transferred to the substitute support base 110, and the connection between the hopper holder 102 and the hopper car 101 is disconnected in a state where the hopper holder 102 is not loaded, thereby separating the lower hopper 103 from the hopper car 101.
In this embodiment, the hopper support 102 includes two support beams 1021 welded to the lower hopper 103, and both ends of each support beam 1021 are fixed to the hopper carriage 101 to apply the load of the lower hopper 103 to the hopper carriage 101. Before disconnecting the support beams 1021 from the hopper car 101, the upper hopper 104 is raised so that the lower hopper 103 connected to the upper hopper 104 is raised, thereby unloading the load of the lower hopper 103 on the support beams 1021 to facilitate separation of the support beams 1021 by the worker from the hopper car 101. In order to securely fix the jack-supported upper hopper 104 and lower hopper 103 to the hopper car 101, the upper hopper 104 is fixed to the substitute support base 110 instead of the support base 110 being welded to the hopper car 101.
Alternatively, the loading device includes a plurality of vertical columns 108, each vertical column 108 has a lower end disposed on the hopper holder 102 and an upper end disposed on the upper hopper 104, and the step S3 of fabricating and disposing the upper hopper 104 on the hopper car 101 instead of the support base 110 specifically includes: the substitute support base 110 is provided on the hopper car 101, each column 108 is supported by a jack, each column 108 is attached to the substitute support base 110, and the jack is removed. In this embodiment, four vertical columns 108 are provided and distributed around the lower hopper 103. The upper hopper 104 is lifted up by lifting up the columns 108 with a plurality of hundred-ton jacks, and the load applied to the hopper holder 102 by the lower hopper 103 is discharged, thereby facilitating the worker to detach the hopper holder 102 from the hopper car 101. In this embodiment, the raised columns 108 are all welded to the support base 110.
And S4, disconnecting the upper hopper 104 from the lower hopper 103, and lowering the lower hopper 103 to a supporting position below the upper hopper 104. The upper hopper 104 and the lower hopper 103 are disconnected, the lower hopper 103 and the upper hopper 104 are separated, at the moment, the lower hopper 103 and other components of the loading device are not connected, and the lower hopper 103 and other components of the loading device are placed on the supporting position. In this embodiment, the upper hopper 104 and the lower hopper 103 are connected by a connecting bolt, and the upper hopper 104 is completely detached from the loading device after the connecting bolt is removed.
And S5, moving the hopper trolley 101 to one side of the lower hopper 103, and replacing the lower hopper 103 at the supporting position to be a spare lower hopper. The hopper trolley 101 is removed from above the lower hopper 103 so that the hopper trolley 101 does not obstruct the replacement of the lower hopper 103. In this embodiment, after the hopper car 101 is removed from above the lower hopper 103, the lower hopper 103 is lifted by the lifting device, and the spare lower hopper is lifted to the original support position.
After the replacement of the lower magazine 103 with a spare lower magazine is completed, the various components involved in the process can be reloaded in accordance with the reverse of the process described above. The method comprises the following specific steps:
and S6, moving the hopper trolley 101 to the position above the standby lower hopper, and fixedly connecting the standby lower hopper to the upper hopper 104. In the present embodiment, the upper hopper 104 and the lower hopper 103 are fastened together by using a connecting bolt. In other embodiments, the connection and disconnection between the upper hopper 104 and the lower hopper 103 should be adaptable to the connection between the upper hopper 104 and the lower hopper 103, and should not be limited to the disconnection and connection of a bolted connection.
S7, the hopper holder 102 for the spare lower hopper is fixed to the hopper carriage 101, and the whole of the spare lower hopper and the upper hopper 104 is stably set on the hopper carriage 101 by the hopper holder 102. Specifically, the hopper holder 102 connected to the spare lower hopper is positioned and welded on the hopper car 101. In one embodiment, the replacement support base 110 is removed after the positioning and securing of the hopper holder 102 of the spare lower hopper is completed to reduce the load of the hopper car 101. In another embodiment, after the positioning and securing of the hopper holder 102 of the spare lower hopper is completed, the support bed 110 is retained in place to support the spare lower hopper and the upper hopper 104 in cooperation with the hopper holder 102 and to facilitate recycling when the lower hopper 103 is replaced again.
S8, reloading the bell 106 into the spare lower hopper and the upper hopper 104, and reloading the sliding closure 105 into the lower end of the spare lower hopper. In this embodiment, the bell 106 is installed by using a hoisting technique commonly used in the prior art, and will not be described herein.
And S9, connecting the driving trolley 201 with the hopper trolley 101. That is, the connecting pin 700 is newly installed between the driving carriage 201 and the hopper carriage 101, so that the driving carriage 201 and the hopper carriage 101 are fixedly connected to each other, and the driving transmission of the driving carriage 201 to the hopper carriage 101 is realized. At this time, the loading device can be trial run for trial production.
In the method for replacing the lower hopper of the loading device provided by the embodiment, in the process of replacing the lower hopper 103, the furnace cover 202 is sealed on the furnace mouth 500, so that the dry quenching coke is continuously produced in the dry quenching furnace; the hopper trolley 101 is not connected with the driving trolley 201, and the driving trolley 201 cannot be driven to run in the process of replacing the lower hopper 103, so that the sealing of the furnace cover 202 on the furnace mouth 500 is influenced, the stable production of dry quenching is kept, meanwhile, the outward radiation of high temperature of the furnace mouth 500 is avoided, and the safety of the operation process of replacing the lower hopper 103 is good. In the process of replacing the lower hopper 103, the coke dry quenching furnace does not undergo the processes of cooling, production stoppage, heating and trial production, the replacement time of the lower hopper 103 is obviously shortened, the coke dry quenching production can be rapidly recovered, the replacement time is saved, and the replacement efficiency is improved.
In the existing dry quenching device system, the structure between each component is compact, the vacant space between each component is small, and in order to enable the hopper trolley 101 to completely avoid the lower hopper 103 placed on the supporting position, optionally, the method for replacing the lower hopper of the loading device further comprises the following steps:
s10, before the step S5, disconnecting the driving trolley 201 from the furnace cover 202;
s11, connecting the furnace cover 202 with the driving trolley 201 after the step S6;
moving the hopper carriage 101 to one side of the lower hopper 103 in step S5 includes: the hopper carriage 101 and the driving carriage 201 are moved to one end of the rail 400 near the driving unit 300.
That is, the drive carriage 201 and the furnace cover 202 are disconnected, and both the drive carriage 201 and the hopper carriage 101 are moved to one end of the rail 400 to make a sufficient hanging space for the lower hopper 103. After replacement of the spare lower hopper, the drive trolley 201 may be reconnected to the furnace lid 202.
Referring to fig. 1 and 3, the output end of the driving unit 300 is connected to the connecting beam 204 on the furnace cover 202 through the link mechanism 205, and the driving unit 300 drives the connecting beam 204 to move through the link mechanism 205, thereby opening the furnace opening 500 or closing the furnace opening 500. The connecting beam 204 is connected to the driving trolley 201 through the guide rod 203, and the driving unit 300 drives the driving trolley 201 to move through the link mechanism 205, the connecting beam 204 and the guide rod 203, so as to drive the furnace cover 202 to open or close. In this embodiment, the furnace cover 202 and the driving carriage 201 are disconnected, and the connection between the guide rods 203 and the connecting beams 204 is disconnected.
Optionally, in the method for replacing the lower hopper of the loading device, between step S10 and step S5, the method further comprises: connecting the driving trolley 201 and the hopper trolley 101; in this embodiment, the driving carriage 201 and the hopper carriage 101 are quickly connected by the connecting pin 700, and the operation is convenient. The driving trolley 201 is connected with the hopper trolley 101, so that the working personnel can conveniently move the driving trolley and the hopper trolley integrally to one end of the track 400. Further, between step S5 and step S6, further comprising: the drive carriage 201 is disconnected from the hopper carriage 101. In the present embodiment, the driving carriage 201 and the hopper carriage 101 can be quickly separated by removing the connecting pin 700. By separating the driving carriage 201 and the hopper carriage 101 in advance, the hopper carriage 101 can be moved independently to the upper side of the standby lower hopper, and the influence of the driving carriage 201 connected to the hopper carriage 101 on the working space when the standby lower hopper is mounted can be avoided.
Alternatively, in the method for replacing the lower hopper of the loading device, the method comprises the following steps between the step S1 and the step S2: s12, moving the hopper trolley 101 to one end, far away from the driving unit 300, of the track 400; between step S6 and step S9: s13, moving the hopper trolley 101 to a maintenance position.
That is, the process of replacing the lower hopper 103 is arranged on the end of the rail 400 remote from the drive unit 300 such that the support position is located beside the rail 400 at the end remote from the drive unit 300. One end of the track 400, which is far away from the driving unit 300, is far away from the furnace opening 500, the furnace cover 202 and the driving trolley 201, so that replacement operation is performed at the position, the operation space is increased, and the influence on disassembly and assembly due to the limit interference of other components of the dry quenching furnace equipment system on structural parts involved in the operation process is avoided; the support position is far away from the furnace mouth 500, so that the radiation of high temperature is further reduced, and the operation safety of workers is improved.
Alternatively, step S13 is performed between step S6 and step S7. That is, before fixing the hopper holder 102 for the spare lower material, the hopper car 101 needs to be moved back to the inspection position to accurately position the hopper holder 102 on the lower hopper 103 with reference to the inspection position, so that the hopper holder is accurately fixed on the hopper car 101, and the hopper car 101 and the driving car 201 can work in cooperation to align the spare lower material on the furnace opening 500, thereby avoiding the operation accident caused by the installation error.
Optionally, the dry quenching apparatus system further includes a lifter 600, the lifter 600 is used to deliver the raw material to the upper hopper 104, and the lifter 600 is moved to above one end of the rail 400 near the driving unit 300 while step S12 is performed, so as to prevent the lifter 600 from affecting the working space for replacing the lower hopper 103.
Alternatively, the hopper trolley 101 includes a first frame, a second frame and two beams 1011, the first frame and the second frame are arranged side by side on the rail 400, the beams 1011 are arranged at intervals in the extending direction of the rail 400, one end of each beam 1011 is connected to the first frame, the other end is connected to the second frame, the lower hopper 103 is positioned between the first frame, the second frame and the two beams 1011, the lower end of the lower hopper 103 is lower than the first frame, the second frame and the two beams 1011,
before step S2, further comprising: s14, arranging a door-shaped avoiding frame 109, enabling one end of the door-shaped avoiding frame 109 to be connected to the first frame, enabling the other end of the door-shaped avoiding frame 109 to be connected to the second frame, and enabling the door-shaped avoiding frame 109 to be located on one side, away from the lower hopper 103, of any cross beam 1011;
step S2 further includes: of the two cross beams 1011, one cross beam 1011 adjacent to the gate-type avoidance frame 109 is removed;
step S8 further includes: the removed beam 1011 is reinstalled.
The first frame and the second frame are connected by arranging the door-shaped avoidance frame 109 in advance, so that the first frame and the second frame are reinforced, the structure of the hopper trolley 101 with one cross beam 1011 removed is still reliable, and the hopper trolley 101 with the cross beam 1011 removed is particularly prevented from being stressed and deformed or even derailed in the moving process; moreover, the door-shaped avoidance frame 109 is arranged on the first frame and the second frame in a spanning manner to form an avoidance space, so that the replacement process of the lower hopper 103 is not interfered; after the replacement of the lower hopper 103 is completed, the removed cross beam 1011 can be remounted on the hopper car 101, so that the reinforcement of the hopper car 101 can be realized. In this embodiment, after the cross beam 1011 is installed, the door-shaped avoidance frame 109 is removed.
Alternatively, in step S14, the door-shaped avoidance frame 109 is provided on the hopper car 101 on the side away from the drive unit 300, so that positional interference between the door-shaped avoidance frame 109 and each component of the furnace cover unit 200 can be avoided.
Example two
The method for replacing the lower hopper of the loading device provided by the embodiment is basically the same as the first embodiment, and the main difference is that in the embodiment, the beam 1011 removed in the step S2 is not reloaded in the step S8, and meanwhile, the door-shaped avoidance frame 109 remains. That is, the reinforcement of the hopper car 101 by the cross beam 1011 is permanently replaced by the gate-shaped avoidance frame 109. When the lower hopper 103 is replaced again, the steps of detaching and installing the door-shaped avoidance frame 109 are omitted, the operation steps are saved, and the replacement efficiency is improved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A method for replacing a lower hopper of a loading device is used for replacing the lower hopper (103) of the loading device in a dry quenching equipment system, the dry quenching equipment system comprises a dry quenching furnace, the loading device and a lifter (600), and the top of the dry quenching furnace is provided with a furnace mouth (500); the loading device comprises a rail (400), a furnace cover unit (200), a material distribution unit (100) and a driving unit (300), wherein the rail (400) is arranged at the top of the dry quenching furnace; the furnace cover unit (200) comprises a driving trolley (201) and a furnace cover (202), wherein the furnace cover (202) is arranged on the driving trolley (201), and the driving trolley (201) is arranged on the track (400) in a walking manner; the material distribution unit (100) comprises a hopper trolley (101), a hopper support (102), a lower hopper (103), an upper hopper (104), a sliding cover (105) and a bell (106), wherein the hopper support (102) is arranged on the hopper trolley (101), the lower hopper (103) is arranged on the hopper support (102), the upper hopper (104) is fixedly connected to the upper end of the lower hopper (103), the sliding cover (105) is arranged at the lower end of the lower hopper (103), the bell (106) is arranged in the upper hopper (104) and the lower hopper (103), and the hopper trolley (101) is arranged on the track (400) in a walking manner and is connected with the driving trolley (201); the driving unit (300) is arranged at intervals on the track (400) along the extending direction of the track (400), the furnace cover unit (200) is positioned between the driving unit (300) and the hopper trolley (101), the output end of the driving unit (300) is connected with the furnace cover unit (200) so as to drive the furnace cover (202) to open or close the furnace opening (500), when the furnace cover (202) opens the furnace opening (500), the lower hopper (103) is in butt joint with the furnace opening (500), and when the furnace cover (202) closes the furnace opening (500), the lower hopper (103) is positioned at an overhauling position; the method for replacing the hopper at the lower part of the loading device is characterized by comprising the following steps:
s1, keeping the furnace cover (202) to close the furnace opening (500), and disconnecting the hopper trolley (101) from the driving trolley (201);
s2, removing the bell (106) and the sliding cover (105);
s3, manufacturing and arranging a substitute support seat (110) on the hopper trolley (101) to support the upper hopper (104), and disconnecting the hopper support (102) from the hopper trolley (101);
s4, disconnecting the upper hopper (104) from the lower hopper (103), and lowering the lower hopper (103) to a supporting position below the upper hopper (104);
s5, moving the hopper trolley (101) to one side of the lower hopper (103), and replacing the lower hopper (103) at the supporting position to be a standby lower hopper;
s6, moving the hopper trolley (101) to a position above the standby lower hopper, and fixedly connecting the standby lower hopper to the upper hopper (104);
s7, fixing a hopper bracket (102) of the standby lower hopper to the hopper trolley (101);
s8, reloading the bell (106) into the standby lower hopper and the upper hopper (104), and reloading the sliding cover (105) to the lower end of the standby lower hopper;
s9, connecting the driving trolley (201) with the hopper trolley (101).
2. The method of replacing a lower hopper of a charging device according to claim 1, further comprising the steps of:
s10, before the step S5, disconnecting the driving trolley (201) from the furnace cover (202);
s11, connecting the furnace cover (202) with the driving trolley (201) after the step S6;
moving the hopper car (101) to one side of the lower hopper (103) in step S5 includes: moving the hopper trolley (101) and the drive trolley (201) to an end of the track (400) near the drive unit (300).
3. The method for replacing a lower hopper of a loading unit according to claim 1,
between step S1 and step S2, comprising: s12, moving the hopper trolley (101) to one end, far away from the driving unit (300), of the rail (400);
between step S6 and step S7: s13, moving the hopper trolley (101) to the overhaul position.
4. The method for replacing a lower hopper of a loading unit according to claim 3, wherein the elevator (600) is used to transfer the raw material to the upper hopper (104), and wherein the step S12 is performed while moving the elevator (600) to above one end of the rail (400) near the driving unit (300).
5. The method for replacing a lower hopper of a loading unit according to claim 1, wherein the hopper car (101) comprises a first frame, a second frame and two beams (1011), the first frame and the second frame are arranged side by side on the rail (400), the beams (1011) are arranged at intervals in the extending direction of the rail (400), one end of each beam (1011) is connected to the first frame, the other end is connected to the second frame, the lower hopper (103) is positioned between the first frame, the second frame and the two beams (1011), the lower end of the lower hopper (103) is lower than the first frame, the second frame and the two beams (1011),
before step S2, further comprising: s14, arranging a door-shaped avoiding frame (109), enabling one end of the door-shaped avoiding frame (109) to be connected to the first frame, enabling the other end of the door-shaped avoiding frame to be connected to the second frame, and enabling the door-shaped avoiding frame (109) to be located on one side, away from the lower hopper (103), of any cross beam (1011);
step S2 further includes: removing one of the cross beams (1011) adjacent to the door-shaped avoidance frame (109) from the two cross beams (1011);
step S8 further includes: -back-mounting said removed beam (1011).
6. The method for replacing the lower hopper of the loading device according to claim 5, wherein the door-type avoidance frame (109) is provided at a side of the hopper car (101) away from the driving unit (300) in step S14.
7. The method for replacing a lower hopper of a loading unit according to claim 1, said loading unit comprising a plurality of vertical columns (108), each of said vertical columns (108) having a lower end disposed on said hopper support (102) and an upper end disposed on said upper hopper (104), wherein the step S3 of making and disposing a substitute support base (110) on said hopper car (101) to support said upper hopper (104) comprises: and arranging the substitute support seats (110) on the hopper trolley (101), supporting each upright column (108) by using a jack, fixedly connecting each upright column (108) to the substitute support seats (110), and removing the jack.
8. The method for changing the lower hopper of a loading unit according to any of the claims 1 to 7, characterized in that before step S1, the pressure of a pre-existing chamber in the dry quenching furnace is adjusted to maintain the furnace mouth (500) at a negative pressure.
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| CN202210657988.3A CN114989838B (en) | 2022-06-10 | 2022-06-10 | Method for replacing hopper at lower part of loading device |
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| CN202210657988.3A CN114989838B (en) | 2022-06-10 | 2022-06-10 | Method for replacing hopper at lower part of loading device |
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| CN114989838B true CN114989838B (en) | 2023-04-07 |
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| GB846169A (en) * | 1958-05-02 | 1960-08-24 | Carves Simon Ltd | Improvements relating to means for quenching carbonised fuel |
| CA1000642A (en) * | 1972-04-14 | 1976-11-30 | Waagner-Biro Aktiengesellschaft | Method and apparatus for treating coke discharged from a coke oven |
| DE3011575C2 (en) * | 1980-03-26 | 1982-09-30 | Didier Engineering Gmbh, 4300 Essen | Filling device for coke drying chambers |
| JP2012224657A (en) * | 2011-04-15 | 2012-11-15 | Jp Steel Plantech Co | Coke charging apparatus |
| US10760002B2 (en) * | 2012-12-28 | 2020-09-01 | Suncoke Technology And Development Llc | Systems and methods for maintaining a hot car in a coke plant |
| CN203714854U (en) * | 2014-03-11 | 2014-07-16 | 蒋春英 | Dry quenching loading device |
| CN205616840U (en) * | 2016-04-11 | 2016-10-05 | 唐山钢铁集团有限责任公司 | Dry coke quenching device of packing into |
| KR101989272B1 (en) * | 2018-02-22 | 2019-06-13 | 현대제철 주식회사 | Quenching car |
| CN108913170B (en) * | 2018-09-10 | 2024-01-30 | 中冶焦耐(大连)工程技术有限公司 | Double-hopper loading device with automatic discharging turning plate and sealing gate and working method |
| CN108865189B (en) * | 2018-09-10 | 2024-01-30 | 中冶焦耐(大连)工程技术有限公司 | Double-hopper loading device with lifting sleeve sealed at two sides and working method of double-hopper loading device |
| CN212610418U (en) * | 2020-06-11 | 2021-02-26 | 北京中日联节能环保工程技术有限公司 | Novel dry quenching red coke is packed into device |
| CN113088300A (en) * | 2021-03-08 | 2021-07-09 | 广东韶钢松山股份有限公司 | Falling safety detection device for cooling tower of dry quenching hoister and use method |
| CN113684042A (en) * | 2021-08-26 | 2021-11-23 | 攀钢集团工程技术有限公司 | Method for replacing cross air duct of coke dry quenching furnace |
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