CN112831328B - Furnace top cleaning device with ascending pipe dust collection function and working method thereof - Google Patents
Furnace top cleaning device with ascending pipe dust collection function and working method thereof Download PDFInfo
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- CN112831328B CN112831328B CN202110198859.8A CN202110198859A CN112831328B CN 112831328 B CN112831328 B CN 112831328B CN 202110198859 A CN202110198859 A CN 202110198859A CN 112831328 B CN112831328 B CN 112831328B
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- suction nozzle
- dust
- dust collection
- butterfly valve
- furnace top
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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
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
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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
- C10B27/00—Arrangements for withdrawal of the distillation gases
- C10B27/06—Conduit details, e.g. valves
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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
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
- C10B43/06—Removing incrustations by mechanical means from conduits, valves or the like
Abstract
The invention provides a furnace top cleaning device with a lifting pipe dust collection function, which comprises a top coal charging car and a furnace top cleaning device, wherein the furnace top cleaning device is arranged on the top coal charging car, the top coal charging car comprises a steel structure platform and a coal bucket, and the furnace top cleaning device comprises: the invention mainly utilizes the movable dust collecting device to recycle coal dust at the top of a cleaning coke oven and then processes the coal dust through a dust remover, automatically cleans the top of the coke oven, automatically transfers and discharges the collected matters, realizes the complete closed-loop operation of cleaning, reduces the labor intensity of workers, simultaneously utilizes the fixed dust collecting part to collect a small amount of overflowed smoke dust at a riser, discharges the smoke dust after the dust remover is processed, and improves the environmental protection of the coke oven machinery.
Description
Technical Field
The invention relates to the technical field of metallurgical coking, in particular to a furnace top cleaning device with a riser dust collection function and a working method thereof.
Background
The top-loading coal car is an important mechanical equipment of the coke oven, and mainly plays a role of receiving coal from a coal tower and loading the coal into a carbonization chamber. When the coal charging car reciprocates at the furnace top and carries out coal charging operation, coal dust is scattered at the furnace top. Operators need to clean the furnace top regularly, and the cleaned coal dust is manually transported to a designated position for discharge. The labor intensity of workers is increased, secondary dust is easily caused in the cleaning process, and the health of operators and the protection of surrounding environment are not facilitated.
During coke production, graphite can deposit on the inner wall of the riser. If the coal is not cleaned in time, a small amount of black smoke can be emitted when the ascending pipe cover is opened in the coal loading operation. The coke oven smoke contains harmful components such as benzopyrene, and the smoke dust is discharged untreated to endanger the environment.
Therefore, a furnace top cleaning device with the function of collecting dust of a rising pipe and a working method thereof are needed to be designed.
Disclosure of Invention
According to the technical problems that the labor intensity of manually cleaning the furnace top is high and a small amount of black smoke at the ascending pipe overflows when the mechanical equipment of the coke oven is operated, the furnace top cleaning device with the ascending pipe dust collection function and the working method thereof are provided. The invention mainly utilizes the movable dust collecting device to recycle the coal dust at the top of the cleaning coke oven and then processes the coal dust through the dust remover, automatically cleans the oven top, automatically transfers and discharges the collected matter, realizes the complete closed-loop operation of cleaning, reduces the labor intensity of workers, simultaneously utilizes the fixed dust collecting part to collect a small amount of overflowed smoke dust at the rising pipe, discharges the smoke dust after the dust remover processes the smoke dust, and improves the environmental protection performance of coke oven machinery.
The invention adopts the following technical means:
the utility model provides a have furnace roof cleaning device of tedge dust collection function concurrently, includes roof coal car and furnace roof cleaning device, its characterized in that, furnace roof cleaning device sets up on the roof coal car, the roof coal car includes steel construction platform and coal scuttle, furnace roof cleaning device includes: the dust collector comprises a fixed dust collecting part, a dust removing part and a movable dust collecting part, wherein the fixed dust collecting part, the dust removing part and the movable dust collecting part are arranged on a steel structure platform, the fixed dust collecting part and the movable dust collecting part are connected with the dust removing part through a pipeline structure, and the dust removing part is connected with a coal bucket through a scraper.
Further, the fixed dust collection part comprises a rotary cover, a fixed cover and a rotary driving oil cylinder, the rotary cover is arranged at the front end of the fixed cover and is coaxial with the fixed cover, the rotary cover is driven by the rotary driving oil cylinder, and the fixed cover is connected with the dust collection part by a fixed dust collection pipeline.
Further, the movable dust collection part comprises a track and a dust collection trolley, the dust collection trolley comprises a frame, a power system and a dust collection system, the power system is arranged at the upper end of the frame, a roller is arranged at the top end of the frame, and the roller is matched with the track; the power system comprises a speed reducing motor, a transmission shaft, a coupler, a bearing, an encoder, a gear and a rack, wherein the track and the rack are arranged on the lower surface of the steel structure platform; the speed reducing motor is connected with the transmission shaft through the coupler, the bearing, the encoder and the gear are arranged on the transmission shaft, and the gear is matched with the rack; the dust collection system comprises a left suction nozzle, a left suction nozzle lifting cylinder, a left electric disc valve, a fixed pipe, a right electric disc valve, a flexible pipe I, a right suction nozzle lifting cylinder and a lifting trolley, wherein the fixed pipe is arranged at the center of the outer side of the frame, the left suction nozzle lifting cylinder and the left electric disc valve are arranged at the left side of the lower end of the frame, the left suction nozzle is connected to the frame through the lifting trolley, the left suction nozzle is connected with a left electric butterfly valve and the fixed pipe through the flexible pipe I, the right suction nozzle, the lifting cylinder and the right electric disc valve are arranged at the right side of the lower end of the frame, the right suction nozzle is connected to the frame through the lifting trolley, the right suction nozzle, the lifting trolley and the fixed pipe are connected, the left suction nozzle, the lifting trolley and the right suction nozzle, the lifting trolley, the dust collector and the dust collector are connected to the dust collector through the dust collector.
Further, the dust removal portion comprises a dust remover, a discharge valve and a dust removal fan system, the discharge valve is arranged at the lower end of the dust remover, the dust removal fan system comprises a dust removal fan, a silencer, a manual butterfly valve and a fan duct, the silencer is connected with an air outlet of the dust removal fan through the manual butterfly valve, and an air inlet of the dust removal fan is connected with the discharge valve through the fan duct.
Further, the fixed dust collection pipeline comprises an air supplementing valve, an electric butterfly valve and a connecting pipe, wherein the air supplementing valve and the electric butterfly valve are arranged on the connecting pipe, and the fixed dust collection part is connected with the dust removal part through the connecting pipe.
Further, a chain device is arranged on the steel structure platform, and the flexible pipe II and the cable are arranged in the chain device.
The invention also provides a working method of the furnace top cleaning device with the function of collecting dust of the ascending pipe, which is characterized by comprising the following steps:
step S1: the dust collection trolley is positioned at an initial position, and all the oil cylinders are in a contracted state;
step S2: the top coal charging car moves to the position above the carbonization chamber to be charged with coal, the rotary driving oil cylinder stretches out, and the rotary cover rises to a high position;
step S3: the dust removing fan is started, the electric butterfly valve is opened, the ascending pipe cover is opened, and smoke dust at the ascending pipe cover is collected;
step S4: after a certain time, the electric butterfly valve is closed, the left electric butterfly valve is opened, the left suction nozzle lifting oil cylinder extends out, the left suction nozzle falls down, and the speed reducing motor works to drag the dust collection trolley to move leftwards along the track to a cleaning limit and return to the left side rail of the furnace top;
step S5: the left electric butterfly valve is closed, the left suction nozzle lifting oil cylinder is contracted, the left suction nozzle is retracted to an initial position, and the left suction nozzle spans the left rail of the furnace top;
step S6: the right electric butterfly valve is opened, the right suction nozzle lifting oil cylinder extends out, the right suction nozzle falls down, and the dust collection trolley moves rightwards along the track to the right side track of the furnace top;
step S7: the right suction nozzle lifting oil cylinder contracts, and the right suction nozzle ascends to cross the right side rail of the furnace top;
step S8: the right suction nozzle lifting oil cylinder extends out, the right suction nozzle falls down, and the dust collection trolley moves rightwards along the track to a cleaning limit and returns to the track on the right side of the furnace top;
step S9: the right electric butterfly valve is closed, the right suction nozzle lifting oil cylinder is contracted, the right suction nozzle ascends and spans the right rail of the furnace top;
step S10: the left electric butterfly valve is opened, the left suction nozzle lifting oil cylinder extends out, the left suction nozzle falls down, and the dust collection trolley moves to the left rail of the furnace top;
step S11: the left electric butterfly valve is closed, the left suction nozzle lifting oil cylinder is contracted, the left suction nozzle is retracted to an initial position, and the left suction nozzle spans the left rail of the furnace top;
step S12: the dust collection trolley moves to an initial position, the rotary driving oil cylinder contracts, the rotary cover returns to the initial position, and the dust collection fan is closed.
Compared with the prior art, the invention has the following advantages:
1. the furnace top cleaning device with the function of collecting dust by the ascending pipe and the working method thereof provided by the invention have reasonable structure, can realize automatic operation and are easy to maintain.
2. The furnace top cleaning device with the function of collecting dust by the ascending pipe and the working method thereof provided by the invention can mechanically clean and discharge the collected matters in a closed loop, thereby greatly reducing the labor intensity of workers.
3. The furnace top cleaning device with the function of collecting dust of the ascending pipe and the working method thereof solve the problem of black smoke emission at the ascending pipe of a user and improve the environmental protection performance of the top.
Based on the reasons, the invention can be widely popularized in the fields of metallurgical coking technology and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a front view of a furnace roof cleaning device with a riser dust collection function and a working method thereof.
FIG. 2 is a top view of a roof cleaning apparatus with a riser dust collection function and a method of operating the same according to the present invention.
FIG. 3 is a left side view of a furnace roof cleaning device with a riser dust collection function and a working method thereof according to the present invention.
In the figure: 1. a discharge valve; 2. a dust remover; 3. a scraper machine; 4. a chain device; 5. a dust removal fan system; 51. a dust removal fan; 52. a muffler; 53. a manual butterfly valve; 54. a fan duct; 6. a track; 7. a dust collection trolley; 71. a frame; 72. a reduction motor; 73. a drive shaft 74, a coupling; 75. a bearing; 76. an encoder; 77. a gear; 78. a rack; 79. a left suction nozzle; 710. a left suction nozzle lifting cylinder; 711. a left side electric butterfly valve; 712. a fixed tube; 713. a right side electric butterfly valve; 714. a flexible pipe I; 715. a right suction nozzle lifting cylinder; 716. lifting trolley; 717. a right suction nozzle; 8. a flexible pipe II; 9. a rotating cover; 10. a fixed cover; 11. a rotary driving oil cylinder; 12. an air make-up valve; 13. an electric butterfly valve; 14. a connecting pipe; 15. a coal bucket; 16. a steel structure platform; 17. a riser cap; 18. a left rail of the furnace top; 19. and a rail on the right side of the furnace roof.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above …" and "below …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
As shown in fig. 1 to 3, the present invention provides a furnace top cleaning device with a function of collecting dust by a rising pipe, comprising a top coal charging car and a furnace top cleaning device, wherein the furnace top cleaning device is arranged on the top coal charging car, the top coal charging car comprises a steel structure platform 16 and a coal bucket 15, and the furnace top cleaning device comprises: the dust collecting device comprises a fixed dust collecting part, a dust collecting part and a movable dust collecting part, wherein the fixed dust collecting part, the dust collecting part and the movable dust collecting part are arranged on a steel structure platform 16, the fixed dust collecting part and the movable dust collecting part are connected with the dust collecting part through a pipeline structure, and the dust collecting part is connected with a coal bucket 15 through a scraper machine 3; the fixed dust collection part comprises a rotary cover 9, a fixed cover 10 and a rotary driving oil cylinder 11, wherein the rotary cover 9 is arranged at the front end of the fixed cover 10 and is coaxial with the fixed cover 10, the rotary cover 9 is driven by the rotary driving oil cylinder 11, and the fixed cover 10 is connected with the dust collection part by a fixed dust collection pipeline; the movable dust collection part comprises a track 6 and a dust collection trolley 7, the dust collection trolley 7 comprises a frame 71, a power system and a dust collection system, the power system is arranged at the upper end of the frame 71, a roller is arranged at the top end of the frame 71, and the roller is matched with the track 6; the power system comprises a speed reduction motor 72, a transmission shaft 73, a coupling 74, a bearing 75, an encoder 76, a gear 77 and a rack 78, wherein the track 6 and the rack 78 are arranged on the lower surface of the steel structure platform 16; the speed reducing motor 72 is connected with the transmission shaft 73 through the coupler 74, the bearing 75, the encoder 76 and the gear 77 are arranged on the transmission shaft 73, and the gear 77 is matched with the rack 78; the dust collection system comprises a left suction nozzle 79, a left suction nozzle lifting cylinder 710, a left electric butterfly valve 711, a fixed pipe 712, a right electric butterfly valve 713, a flexible pipe I714, a right suction nozzle lifting cylinder 715 and a lifting trolley 716, wherein the fixed pipe 712 is arranged at the center of the outer side of the frame 71, the left suction nozzle 79, the left suction nozzle lifting cylinder 710 and the left electric butterfly valve 711 are arranged at the left side of the lower end of the frame 71, the left suction nozzle 79 is connected to the frame 71 through the lifting trolley 716, the left suction nozzle 79 is connected with the left electric butterfly valve 13 and the fixed pipe 712 through the flexible pipe I714, the right suction nozzle 717, the right suction nozzle lifting cylinder 715 and the right electric butterfly valve 713 are arranged at the right side of the lower end of the frame 71, the right suction nozzle 717 is connected to the frame 71 through the lifting trolley 716, the left suction nozzle 717 is connected with the right electric butterfly valve 13 and the fixed pipe 712 through the lifting trolley 716, the left suction nozzle 717 is connected with the right suction nozzle 712 through the lifting trolley 8 through the control of the lifting trolley; the dust removing part comprises a dust remover 2, a discharge valve 1 and a dust removing fan system 5, wherein the discharge valve 1 is arranged at the lower end of the dust remover 2, the dust removing fan system 5 comprises a dust removing fan 51, a silencer 52, a manual butterfly valve 53 and a fan duct 54, the silencer 52 is connected with an air outlet of the dust removing fan 51 through the manual butterfly valve 53, and an air inlet of the dust removing fan 51 is connected with the discharge valve 1 through the fan duct 54; the fixed dust collection pipeline comprises an air supplementing valve 12, an electric butterfly valve 713 and a connecting pipe 14, wherein the air supplementing valve 12 and the electric butterfly valve 13 are arranged on the connecting pipe 14, and the fixed dust collection part is connected with the dust collection part through the connecting pipe 14; the steel structure platform 16 is provided with a chain device 4, and the flexible pipe II 8 and the cable are arranged in the chain device 4.
The invention also provides a working method of the furnace top cleaning device with the function of collecting dust of the ascending pipe, which is characterized by comprising the following steps:
step S1: the dust collection trolley 7 is positioned at an initial position, and all the oil cylinders are in a contracted state;
step S2: the top coal charging car moves to the position above the carbonization chamber to be charged with coal, the rotary driving oil cylinder 11 stretches out, and the rotary cover 9 rises to a high position;
step S3: the dust removing fan 51 is started, the electric butterfly valve 13 is opened, the ascending pipe cover 17 is opened, and smoke dust at the ascending pipe cover 17 is collected;
step S4: after a certain time, the electric butterfly valve 13 is closed, the left electric butterfly valve 711 is opened, the left suction nozzle lifting cylinder 710 extends out, the left suction nozzle 79 falls down, and the speed reducing motor 72 works to drag the dust collection trolley 7 to move leftwards along the track 6 to a cleaning limit and return to the furnace top left side track 18;
step S5: the left electric butterfly valve 711 is closed, the left suction nozzle lifting cylinder 710 is retracted, the left suction nozzle 79 is retracted to an initial position, and spans the roof left rail 18;
step S6: the right electric butterfly valve 713 is opened, the right suction nozzle lifting cylinder 715 is extended, the right suction nozzle 717 is dropped, and the dust collection trolley 7 moves rightward along the track 6 to the top right side track 19;
step S7: the right suction nozzle lift cylinder 715 is retracted and the right suction nozzle 717 is raised across the top right rail 19;
step S8: the right suction nozzle lifting cylinder 715 is extended, the right suction nozzle 717 is dropped, and the dust collection trolley 7 moves rightwards along the track 6 to a cleaning limit and returns to the furnace top right side track 196;
step S9: the right electric butterfly valve 13 is closed, the right suction nozzle lifting cylinder 715 is contracted, the right suction nozzle 717 is lifted up to cross the top right rail 19;
step S10: the left electric butterfly valve 711 is opened, the left suction nozzle lifting cylinder 710 extends out, the left suction nozzle 79 falls down, and the dust collection trolley 7 moves leftwards to the furnace top left side rail 18;
step S11: the left electric butterfly valve 711 is closed, the left suction nozzle lifting cylinder 710 is retracted, the left suction nozzle 79 is retracted to an initial position, and spans the roof left rail 18;
step S12: the dust collection trolley 7 moves to an initial position, the rotary driving oil cylinder 11 is contracted, the rotary cover 9 is retracted to the initial position, and the dust collection fan 51 is turned off.
Example 1
As shown in fig. 1 to 3, the dust collector 2, the discharge valve 1 and the scraper 3 are sequentially connected, and the scraper 3 discharges the filtered collected matter into the coal bucket 15 and is loaded into the carbonization chamber in the next coal loading operation. The chain device 4 is fixed on the steel structure platform 16 and is used for supporting pipelines and cables.
The dust removal fan system 5 includes the dust removal fan 51, the muffler 52, the manual butterfly valve 53, and the fan duct 54. The dust removing fan 51 adopts a variable frequency centrifugal fan. The manual butterfly valve 54 is disposed at the air outlet side of the dust removing fan 51, and the upper portion thereof is connected to the muffler 52.
The rail 6 is arranged at the lower part of the steel structure platform 16 and is consistent with the length direction of the carbonization chamber.
The dust collection trolley 7 comprises a frame 71, a speed reducing motor 72, a transmission shaft 73, a coupling 74, a bearing 75, an encoder 76, a gear 77, a rack 78, a left suction nozzle 79, a left suction nozzle lifting cylinder 711, a fixed pipe 712, a right electric disk valve 713, a flexible pipe I714, a right suction nozzle lifting cylinder 715, a lifting trolley 716 and a right suction nozzle 717. The dust collection trolley 7 is integrally hung on the track 6 through rollers arranged on the top of the frame 71 and reciprocates along the track 6. The encoder 76 is disposed at the rear end of the drive shaft 73. The rack 78 is mounted on the lower part of the steel structural platform 16 and cooperates with the gear 77 mounted on top of the frame 71. The left suction nozzle 79 is mounted on the lifting trolley 716, and is driven by the speed reducing motor 72 to reciprocate on the top of the carbonization chamber by rollers arranged on two sides during cleaning operation. The frame 71 is provided with a vertical rail, and the lifting trolley 716 moves in the vertical rail through a roller under the action of a suction nozzle lifting oil cylinder. The left end of the flexible pipe I714 is connected with the left suction nozzle 79, and the right end is connected with the left electric butterfly valve 711. The right end of the left electric butterfly valve 711 is connected to the fixed pipe 712. The right suction nozzle 717 is symmetrically arranged with the left suction nozzle 79.
The flexible tube ii 8 is arranged in the chain device 4. The upper end of the flexible pipe II 8 is connected with the fixed pipe 712 of the dust collection trolley 7, so that the reciprocating motion of the dust collection trolley 7 in a certain stroke is met.
The rotating cover 9 is coaxial with the fixed cover 10, and two sides of the rotating cover are connected through a pin shaft. The rotating cover 9 can rotate within a certain range and is positioned right above the riser cover 17 after rotating. The rotary driving oil cylinder 11 is arranged on the steel structure platform 16 through a support, and the front end of the rotary driving oil cylinder is connected with the rotary cover 9 through a pin shaft.
The discharge valve 1, the left electric butterfly valve 711, the right electric butterfly valve 713, and the electric butterfly valve 13 are normally closed. The air make-up valve 12 can be manually set to an opening according to the actual required air amount to reduce the temperature of the air entering the dust collector to a reasonable range.
The invention only works with a single side suction nozzle when cleaning the furnace top, and carries out cleaning work to and fro once in a prescribed range of a carbonization chamber. The cleaning process encounters the coal car travel track requiring cross track and nozzle replacement, with position feedback via the encoder 76.
The complete workflow is as follows: the dust collection trolley 7 is in an initial position, and all the oil cylinders are in a contracted state. The coal charging car moves to the position above the carbonization chamber to be charged with coal, the rotary driving oil cylinder 11 stretches out, and the rotary cover 9 rises to a high position; the dust removing fan 5 is started, the electric butterfly valve 13 is opened, the ascending pipe cover 17 is opened, and smoke dust at the ascending pipe cover 17 is collected; after a certain time, the electric butterfly valve 13 is closed, the left electric butterfly valve 711 is opened, the left suction nozzle lifting cylinder 710 extends out, the left suction nozzle 79 falls down, and the speed reducing motor 72 works to drag the dust collection trolley 7 to move leftwards along the track 6 to a cleaning limit and return to the furnace top left side rail 18; the left electric butterfly valve 711 is closed, the left suction nozzle lifting cylinder 710 is retracted, the left suction nozzle 79 is retracted to an initial position, and spans the roof left rail 18; the right electric butterfly valve 713 is opened, the right suction nozzle lifting cylinder 715 is extended, the right suction nozzle 717 is dropped, and the dust collection trolley 7 moves rightward along the track 6 to the top right side track 19; the right suction nozzle lift cylinder 715 is retracted and the right suction nozzle 717 is raised across the top right rail 19; the right suction nozzle lifting cylinder 715 is extended, the right suction nozzle 717 is dropped, and the dust collection trolley 7 moves rightwards along the track 6 to a cleaning limit and returns to the top right side track 19; the right electric butterfly valve 713 is closed, the right suction nozzle lift cylinder 715 is contracted, the right suction nozzle 717 is lifted up, and the right suction rail 19 is spanned; the left electric butterfly valve 711 is opened, the left suction nozzle 79 is extended, the left suction nozzle 79 falls down, and the dust collection trolley 7 moves leftwards to the furnace top left side rail 18; the left electric butterfly valve 711 is closed, the left suction nozzle lifting cylinder 715 is contracted, the left suction nozzle 79 is retracted to an initial position, and the left suction nozzle spans the furnace top left side rail 18; the dust collection trolley 7 moves to an initial position; the rotary driving oil cylinder 11 is contracted, and the rotary cover 9 is retracted to an initial position; the dust removing fan 51 is turned off.
The discharge valve 1, the left electric butterfly valve 711, the right electric butterfly valve 713 and the electric butterfly valve 13 are all normally closed. The air make-up valve 12 can be manually set to an opening according to the actual amount of air required to reduce the temperature of the gas entering the precipitator to a reasonable range.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (3)
1. The utility model provides a have furnace roof cleaning device of tedge dust collection function concurrently, includes roof coal car and furnace roof cleaning device, its characterized in that, furnace roof cleaning device sets up on the roof coal car, the roof coal car includes steel construction platform and coal scuttle, furnace roof cleaning device includes: the dust collecting device comprises a fixed dust collecting part, a dust collecting part and a movable dust collecting part, wherein the fixed dust collecting part, the dust collecting part and the movable dust collecting part are arranged on a steel structure platform, the fixed dust collecting part and the movable dust collecting part are connected with the dust collecting part through a pipeline structure, and the dust collecting part is connected with a coal hopper through a scraper; the fixed dust collection part comprises a rotary cover, a fixed cover and a rotary driving oil cylinder, the rotary cover is arranged at the front end of the fixed cover and is coaxial with the fixed cover, the rotary cover is driven by the rotary driving oil cylinder, and the fixed cover is connected with the dust collection part by a fixed dust collection pipeline; the movable dust collection part comprises a track and a dust collection trolley, the dust collection trolley comprises a frame, a power system and a dust collection system, the power system is arranged at the upper end of the frame, a roller is arranged at the top end of the frame, and the roller is matched with the track; the power system comprises a speed reducing motor, a transmission shaft, a coupler, a bearing, an encoder, a gear and a rack, wherein the track and the rack are arranged on the lower surface of the steel structure platform; the speed reducing motor is connected with the transmission shaft through the coupler, the bearing, the encoder and the gear are arranged on the transmission shaft, and the gear is matched with the rack; the dust collection system comprises a left suction nozzle, a left suction nozzle lifting cylinder, a left electric disc valve, a fixed pipe, a right electric disc valve, a flexible pipe I, a right suction nozzle lifting cylinder and a lifting trolley, wherein the fixed pipe is arranged at the center of the outer side of the frame, the left suction nozzle lifting cylinder and the left electric disc valve are arranged at the left side of the lower end of the frame, the left suction nozzle is connected to the frame through the lifting trolley, the left suction nozzle is connected with a left electric butterfly valve and the fixed pipe through the flexible pipe I, the right suction nozzle lifting cylinder and the right electric disc valve are arranged at the right side of the lower end of the frame, the right suction nozzle is connected to the frame through the lifting trolley through the flexible pipe I, the lifting trolley on the left side is controlled to move through the left suction nozzle lifting cylinder, and the lifting trolley on the right side is controlled to move through the right suction nozzle lifting cylinder, and the dust collection part is connected with the dust collection part through the fixed pipe II; the dust removing part comprises a dust remover, a discharge valve and a dust removing fan system, the discharge valve is arranged at the lower end of the dust remover, the dust removing fan system comprises a dust removing fan, a silencer, a manual butterfly valve and a fan duct, the silencer is connected with an air outlet of the dust removing fan through the manual butterfly valve, and an air inlet of the dust removing fan is connected with the discharge valve through the fan duct; the fixed dust collection pipeline comprises an air supplementing valve, an electric butterfly valve and a connecting pipe, wherein the air supplementing valve and the electric butterfly valve are arranged on the connecting pipe, and the fixed dust collection part is connected with the dust removal part through the connecting pipe.
2. The furnace top cleaning device with the function of collecting dust of the ascending pipe according to claim 1, wherein a chain device is arranged on the steel structure platform, and the flexible pipe II and the cable are arranged in the chain device.
3. A method of operating a roof cleaning apparatus having a riser dust collection function as claimed in any one of claims 1 to 2, the method comprising the steps of:
step S1: the dust collection trolley is positioned at an initial position, and all the oil cylinders are in a contracted state;
step S2: the top coal charging car moves to the position above the carbonization chamber to be charged with coal, the rotary driving oil cylinder stretches out, and the rotary cover rises to a high position;
step S3: the dust removing fan is started, the electric butterfly valve is opened, the ascending pipe cover is opened, and smoke dust at the ascending pipe cover is collected;
step S4: after a certain time, the electric butterfly valve is closed, the left electric butterfly valve is opened, the left suction nozzle lifting oil cylinder extends out, the left suction nozzle falls down, and the speed reducing motor works to drag the dust collection trolley to move leftwards along the track to a cleaning limit and return to the left side rail of the furnace top;
step S5: the left electric butterfly valve is closed, the left suction nozzle lifting oil cylinder is contracted, the left suction nozzle is retracted to an initial position, and the left suction nozzle spans the left rail of the furnace top;
step S6: the right electric butterfly valve is opened, the right suction nozzle lifting oil cylinder extends out, the right suction nozzle falls down, and the dust collection trolley moves rightwards along the track to the right side track of the furnace top;
step S7: the right suction nozzle lifting oil cylinder contracts, and the right suction nozzle ascends to cross the right side rail of the furnace top;
step S8: the right suction nozzle lifting oil cylinder extends out, the right suction nozzle falls down, and the dust collection trolley moves rightwards along the track to a cleaning limit and returns to the track on the right side of the furnace top;
step S9: the right electric butterfly valve is closed, the right suction nozzle lifting oil cylinder is contracted, the right suction nozzle ascends and spans the right rail of the furnace top;
step S10: the left electric butterfly valve is opened, the left suction nozzle lifting oil cylinder extends out, the left suction nozzle falls down, and the dust collection trolley moves to the left rail of the furnace top;
step S11: the left electric butterfly valve is closed, the left suction nozzle lifting oil cylinder is contracted, the left suction nozzle is retracted to an initial position, and the left suction nozzle spans the left rail of the furnace top;
step S12: the dust collection trolley moves to an initial position, the rotary driving oil cylinder contracts, the rotary cover returns to the initial position, and the dust collection fan is closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110198859.8A CN112831328B (en) | 2021-02-22 | 2021-02-22 | Furnace top cleaning device with ascending pipe dust collection function and working method thereof |
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| CN202110198859.8A CN112831328B (en) | 2021-02-22 | 2021-02-22 | Furnace top cleaning device with ascending pipe dust collection function and working method thereof |
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| CN112831328A CN112831328A (en) | 2021-05-25 |
| CN112831328B true CN112831328B (en) | 2023-07-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114231301A (en) * | 2022-01-11 | 2022-03-25 | 南京智宝节能环保科技有限公司 | Movable automatic cleaning machine for coke oven top |
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| JPH0892565A (en) * | 1994-09-21 | 1996-04-09 | Kawasaki Steel Corp | Operation of dust collector at oven opening of coke oven |
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| CN112831328A (en) | 2021-05-25 |
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